JP3651784B2 - Navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation apparatus that displays information related to a destination of a guide route of a mobile body or performs guidance according to the guide route.
[0002]
[Prior art]
As a conventional map display device, for example, there is a vehicle navigation device. In this vehicle navigation device, information on locations such as names of buildings, facilities, companies, etc., phone numbers, addresses, etc. are stored in correspondence with the representative coordinates of the locations of those locations. Some can specify the destination from items such as numbers and addresses. In some cases, the user designates a point where the destination is located using a cursor on the map screen, and the coordinates of the designated point are set as the destination point.
[0003]
[Problems to be solved by the invention]
As mentioned above, specifying a destination from an item is convenient because you can select the destination with certainty, but you can create list data that associates information about all locations with the coordinates of the location of the location. In order to store the data, a huge amount of memory is required, which increases the cost. For this reason, in the conventional apparatus, list data for main locations is only stored in the memory, and list data for all locations is not stored.
[0004]
For this reason, when a place that cannot be specified from the item is set as the destination, for example, the user displays a map screen of the area where the destination exists on the display device, and the destination is specified by the cursor in the map screen. Must. However, it is difficult to accurately align the cursor with the coordinates of one point in the map screen.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention uses the shape of a section, a site, or a building, the names of these sections, the site, or the building, and detailed information on the facilities in the building as house shape data. Remember. And the presence or absence of designation | designated by a point input means is discriminate | determined by the area | region enclosed by a shape. When an arbitrary house shape is specified, detailed information on the house shape, a three-dimensional shape, or the like is displayed, or a section, site, or building corresponding to the house shape can be specified as a destination.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
1. Overall circuit
FIG. 1 shows an entire circuit of the navigation device. The central processing unit 1 performs operation control and calculation of the navigation device by the CPU 2. The flash memory 3 stores a system program executed by the CPU 2, programs necessary for display control and voice guidance control, various parameters, and the like. The RAM 4 stores externally input data, various parameters used for calculation, calculation results, and the like.
[0007]
The ROM 5 stores a program for operating the information storage device 37 and a program for rewriting the program in the flash memory 3. The ROM 5 may store route guidance and map display display data, display output control and audio output control programs, various parameters, and the like. The clock 6 generates time information. The sensor input interface 7 receives detection data from the absolute azimuth sensor 21, the relative azimuth sensor 22, the distance sensor 23, and the vehicle speed sensor 24 of the current position detection device 20 and sends them to the CPU 2. The communication interface 8 transmits / receives various data to / from devices connected to the data bus 28.
[0008]
The image processor 9 reads the image data stored in the image memory 10 and outputs the image data to a display 33 that can display an image, such as a CRT, a liquid crystal display, or a plasma display. The image memory 10 stores image data displayed on the screen of the display 33, and transmits / receives image data to / from the image processor 9. The image processor 9 converts the map data into display data in response to a command from the CPU 2 and forms image data to be displayed on the screen of the display 33. At this time, an image around the screen displayed on the display 33 is also formed and stored in the image memory 10 for scrolling the screen. The ROM 5 stores voice waveform data obtained by recording synthesized or real voice for guidance voice, and the voice waveform data required by the CPU 2 is read out and sent to the voice processor 11. The audio processor 11 forms an analog audio waveform from the input audio waveform data and sends it to the speaker 13.
[0009]
The current position detection device 20 is a device for obtaining data for detecting the current position of the host vehicle. The absolute azimuth sensor 21 is a geomagnetic sensor that detects, for example, geomagnetism and outputs data indicating the north-south direction as an absolute azimuth. The relative azimuth sensor 22 outputs data indicating a deviation of the traveling direction of the own vehicle with respect to the absolute azimuth detected by the absolute azimuth sensor 21, for example, a gyro apparatus such as an optical fiber gyroscope or a piezoelectric vibration gyroscope, or wheel steering. This is a steering angle sensor that detects an angle. The distance sensor 23 outputs data indicating the travel distance of the host vehicle, and is a digital counter linked to a travel distance meter, for example. The speed sensor 24 generates a voltage signal or a digital signal that is proportional to the traveling speed of the host vehicle.
[0010]
The GPS receiver 25 receives GPS (Global Positioning System) signals and outputs position data. The beacon receiving device 26 receives a beacon from an information providing system such as GPS correction data or VICS (road traffic information communication system), and outputs the received data. In the data transmitting / receiving device 27, information is transmitted to and received from the information providing system using bidirectional communication such as cellular phone, FM multiplex signal, or telephone line. For example, current position information is transmitted to and received from an information providing system, such as ATIS (traffic information service).
[0011]
The input / output device 30 inputs information necessary for destination setting such as a departure point, a destination, and a passing point, and outputs guidance information during a navigation operation. A transparent touch panel 34 is provided on the screen of the display 33. This touch panel has transparent touch switches arranged in a planar matrix. The printer 35 prints various information such as maps and facility guides output via the communication interface 8. The information storage device 37 is connected to the I / O data bus 28 via the data transmission / reception unit 39, and a program, data, and the like described later are read out.
[0012]
FIG. 2 shows the contents stored in the information storage device 37. The information storage device 37 stores disk management information. This information is data related to the data and programs described below, for example, version information of the programs.
[0013]
The information storage device 37 stores a navigation processing program executed by the CPU 2 according to a flowchart to be described later, and other processing related programs. These programs are read from the information storage device 37 (external storage means / medium), written into the flash memory 3 (internal storage means / medium), and stored (installed / transferred / copied).
[0014]
This installation (transfer / copy) is automatically executed when the information storage device 37 is set in the navigation device, is automatically executed when the navigation device is turned on, or is executed by an operator's operation. Is done. This information storage device 37 can be replaced with another information storage device 37, whereby the program and data are replaced with newer or newer ones. As a result, the latest navigation system is supplied by this exchange.
[0015]
2. Information storage device 37 (database)
The information storage device 37 (database) includes map data, intersection data, node data, road data, photograph data, destination point data, guidance point data, detailed destination data, destination reading data, house necessary for navigation operation. Display guidance data, voice guidance data, simplified guidance route image data, and the like are stored as shape data and other data. This information storage device is composed of, for example, a recording medium such as an IC memory (card), a CD-ROM / RAM, an optical disk, a magnetic disk, and a reading device thereof.
[0016]
The map data file includes a road map data file in which road map data such as a national road map is stored, and a house map data file in which house map data capable of recognizing the shape of a building is stored. The road map and the house map may be configured by a plurality of maps having different scales for the same region, or may be configured by a single required scale. In this embodiment, the road map and the house map have a plurality of pieces of map information with different scales as necessary for each region, and for the house map, an explanation will be given regarding a device stored as map information only for a specific area. To do. In the road map, a road network, characters, symbols, figures, and the like indicating locations such as main buildings and facilities, and geographical information such as map symbols and geographical names such as municipalities are displayed.
[0017]
In the housing map (building shape map), the house shape, that is, the shape of the actual building is represented, and further geographical information is displayed. This house shape represents external information of the building, that is, the shape of an actual building, facility, house, road, river, or the like. This house shape is displayed at a ratio that is almost the same as the ratio of the dimensions of the actual building, for example, a section of a flat section, a planar shape of a building, a site, or a perspective view of a building, etc. These three-dimensional appearance shapes, and these two-dimensional appearance shapes and three-dimensional appearance shapes are perspective shapes. In addition to this, the house shape includes external features such as the number of floors, area, height, advertising body, and color of the building. For convenience of explanation, “house shape” is used, but the house shape includes places other than the house such as the site of a facility, a road, and a river. These definitions are the same in the following description.
[0018]
For example, FIG. 3 is an example of a screen displayed on the display 33 based on the road map data of the most enlarged scale. On the road map display screen based on road data, roads are distinguished by lines having different thicknesses and colors. In addition, symbolic marks are displayed at the coordinates where major buildings and facilities exist. In addition, although illustration is omitted, names of buildings and facilities, names of main roads, district names, road regulation marks such as one-way streets, and the like are displayed.
[0019]
On the other hand, for example, as shown in FIG. 4, the house map is a map of a scale further enlarged than the scale of the road map data of the most enlarged scale of FIG. 3 or a map of the same scale. The ratio of the width of each road in this residential map is the same as the ratio of the actual road width, and there are also indications such as sidewalks and pedestrian bridges. Further, the display of signalized intersections, map symbols, names of buildings and facilities, names of main roads, district names, road regulations, and the like are displayed on the house map. The house map data is data for displaying such a house map on the entire surface or a part of the display 33.
[0020]
The intersection data file stores data related to the intersection such as the position and name of the intersection. The node data file stores data of nodes set on the road. The road data file stores road-related data such as the position and type of road, the number of lanes, and the connection relationship between the roads. The photo data file stores image data of photographs showing places where visual indications such as various facilities, sightseeing spots, and major intersections are required.
[0021]
Destination data files contain data on destinations such as locations and names of places and facilities that are likely to be destinations such as major tourist destinations, buildings, and companies or offices listed in the telephone directory. It is remembered. The guidance point data file stores guidance data of points where guidance is required, such as the contents of guidance display boards installed on the road and guidance of branch points. The detailed destination data file stores more detailed data regarding the destination stored in the destination data file. The destination reading data file stores list data for searching the destination stored in the destination data file from the reading.
[0022]
In the house shape data file, house shape data for displaying the house shape and identification data relating to each house shape are stored corresponding to the house map data. Registered in other data files by users such as address list data file for searching the destination from the address, telephone number list data file for searching the destination from the telephone number, business partners, etc. There are data files etc. regarding the destinations. The house shape data file stores internal information of the building, that is, internal characteristics of the building. The internal features include a name, a postal code, a field, a business type, a brand, an item, a price, an achievement, or a record in addition to the above-described telephone number and address.
[0023]
3. Data group
FIG. 5 shows a part of the data group stored in the RAM 4. All or part of the data stored in the information storage device 37 is copied to the external data GD. The current position data MP is current position data of the own vehicle detected by the current position detection device 20. The absolute azimuth data ZD is data indicating the north-south direction obtained based on the data from the absolute azimuth sensor 21. The relative azimuth angle data θ is an angle formed by the traveling direction of the vehicle with respect to the absolute azimuth obtained based on the data from the relative azimuth sensor 22.
[0024]
The travel distance data ML is the travel distance of the host vehicle obtained based on the data from the distance sensor 23. The current position information PI is data relating to the current position input from the beacon receiving device 26 or the data transmitting / receiving device 27. The VICS data VD and the ATIS data AD are VICS or ATIS data input from the beacon receiving device 26 or the data transmitting / receiving device 27.
[0025]
The registered destination data TP is data relating to the destination such as the position and name of the destination registered by the user. The guide route data MW is data indicating an optimum route or a recommended route to the destination searched in the route search process (step 52) described later. The travel speed data MV is the travel speed of the host vehicle detected by the speed sensor 24. The guidance start point data SP is coordinate data on the map of the start point of the navigation operation determined in the route search process (step 52). The final guidance point data EP is coordinate data on the map of the end point of the navigation operation determined by the route search process (step 52). The house map display flag JF is a flag indicating that it is requested to display a house map on the display 33.
[0026]
The scale data SD is data indicating the scale of the road map displayed on the display 33. The road map display flag DF is a flag indicating that it is requested to display a road map on the display 33. The destination distance data MD is data on the distance from the current position to the registered destination TP. The manual display flag MF is a flag indicating that it is requested to display a house map on the display 33 by a user's manual operation. The house map display flag HF is a flag indicating whether or not a house map is displayed on the display 33. Data enclosed by a broken line will be described later.
[0027]
4). House data
As described above, housing map data is provided for municipalities in major cities, and a housing map number is assigned to each area. The house shape data is classified according to the house map number, and the house shape data corresponding to the house map number stores shape data, identification data of each location, and the like. As described above, the house shape data is data in which identification data of places such as type data, adjacent road data, and detailed data is associated with the shape data of the house shape. In the present embodiment, the shape data is data representing a planar shape of a section, a site, or a building of a place partitioned in a plane such as a building or facility existing in a house map.
[0028]
FIG. 6 shows the house shape data of one area in the house shape data file. The house map number data corresponds to the number data of the house map data stored in the map data file. The data number data is the number N of house shapes existing in one area indicated by the house map number. Each of the N house shape data includes type data, shape data, adjacent road data, detailed data, and other data. Of these, the shape data is external information of the building, and the data other than the shape data is internal information of the building.
[0029]
Type data includes data indicating the type of buildings such as public facilities such as government offices, schools, hospitals, private houses, apartment houses, and detached houses, as well as the types of places that are separated by boundaries of roads, railways, rivers, etc. The data representing is also included. The shape data is data in which the shape of a house shape is stored as a coordinate sequence, and includes coordinate number data for representing one house shape and coordinate data of each vertex of a planar shape. For example, as shown in FIG. 7, when the house shape is a hexagon, the coordinates (X0, Y0) to (X5, Y5) of each vertex are coordinate data representing the house shape. The curve is approximately represented by fine line segments, and the coordinates of each vertex are used as coordinate data.
[0030]
The adjacent road data is number data of a road adjacent to the house shape and coordinate data of nodes included in the adjacent road. When there are a plurality of adjacent roads, the adjacent road data includes the respective road number data and node coordinate data. The detailed data is data representing detailed contents regarding one house shape. For example, when the type of house shape is a multi-purpose building, the detailed data includes the name of the place, for example, the name of the building, address data of the place, floor data of the building, and the company existing in the building. And name data of departments and content data of each company and department. The address data is data representing an address such as a prefecture, a municipality, a chome, an address, a number, a large letter, and a character.
[0031]
The content data includes name data such as a company name and department name, telephone number data, classification data, classification data, and the like. The division data is data indicating a room number or a floor number. The classification data is data indicating business contents, and the classification is determined in accordance with, for example, occupation classification in a telephone number book for each occupation. For example, gas stations, restaurants, convenience stores, parking lots, police boxes, pharmacies, banks, post offices, stations, hospitals, schools, cinemas, halls / theaters, live houses, museums, libraries, museums, zoos / aquariums / plants Hall, amusement park, bowling skate park, disco club, karaoke, sports facilities, hotels, inns, lodging, department stores, shopping centers, bookstores, CDs / videos, sports shops, miscellaneous goods / others, gourmet, company (general), A classification such as ... is used. Other data includes list image data for displaying detailed data on the display 33, stereoscopic display image data for stereoscopic display of the shape of the house, data for informing the characteristics of the building, coordinate data for the entrance of the building, building The coordinate data of the entrance of the parking lot attached to is included.
[0032]
5. Overall processing
FIG. 8 is a flowchart of the entire process executed by the CPU 2. This process starts when the power is turned on and ends when the power is turned off. This power on / off may be linked to the on / off of the engine start (ignition). At the start, initialization processing (step 55) of the CPU 2, RAM 4, image memory 9, etc. is performed. Then, the current position acquisition process (step 50), the destination setting process (step 51), the route search process (step 52), the guidance / display process (step 53), and other processes (step 54) are repeatedly executed.
[0033]
In the current position acquisition process (step 50), the current position of the host vehicle is calculated based on the data sent from the current position detection device 20. In the current position calculation process, the latitude and longitude are calculated from the data input from the GPS receiver 25, and the latitude and longitude are stored in the RAM 4 as current position data MP. The current position data MP is corrected by information regarding the current position input from the beacon receiving device 26 or the data transmitting / receiving device 27.
[0034]
Further, calculation processing for specifying the vehicle position is performed based on the absolute azimuth data ZD, the relative azimuth angle data θ, and the travel distance data ML. The own vehicle position obtained by this calculation process is collated with the map data in the external data GD, and correction is performed so that the current position on the map screen is accurately displayed. With this correction process, the current position of the vehicle can be accurately obtained even when GPS signals in the tunnel or the like cannot be received.
[0035]
In the destination setting process (step 51), a process for setting the destination according to the destination setting operation by the user is executed. For example, when the user performs an operation of selecting a destination setting mode, a road map centered on the current position is displayed on the display 33, and “list input” and “housing map input” are displayed in the road map image. Is displayed. When the user selects the list input mode, a menu of search items such as an address, a telephone number, a genre, and a name is displayed on the display 33, so that the user selects one of the items in the menu. The destination can be specified from the selected item. Further, detailed guidance for each destination can be displayed. In the house map input mode, since the house map around the current position is displayed on the display 33, the user moves the cursor to the destination. In this case, the user moves the cursor so that the center of the cursor falls within the range of the desired destination house shape.
[0036]
When the destination is determined, the user performs an operation for instructing the determination of the destination, and data regarding the determined destination is stored in the RAM 4 as the registered destination data TP. The destination setting process (step 51) is jumped when a new destination setting operation is not performed.
[0037]
Moreover, in this destination setting process (step 51), when displaying a house map, it changes from a house map to a road map according to a predetermined condition. This map change is performed in response to a user's manual operation or automatically. For example, a road map is displayed when the traveling speed of the own vehicle is equal to or higher than a predetermined speed, and a house map is displayed when the own vehicle stops or the traveling speed of the own vehicle becomes equal to or lower than the predetermined speed. When the screen is scrolled when the house map is displayed and the destination or the current position is out of the coordinate range of the house map, the map is switched to the road map.
[0038]
In the route search process (step 52), a guide route to the destination is searched based on the registered destination data TP, the current position data MP, and the road data. The road number data of the roads constituting the guide route are arranged according to the route from the departure place to the destination, and the arranged road number data is stored in the RAM 4 as the guide route data MW. For example, when going from the departure place to the destination, in the destination setting process (step 51), the user designates the destination, whereby the designated destination is set as the registered destination. A point on the guidance target road near the destination is set as the final guidance point EP. Further, the current position is set as the departure place, and the current position or a point on the guidance target road close to the current position is set as the guidance start point SP.
[0039]
Then, an optimum route or a recommended route from the guidance start point SP to the final guidance point EP is automatically searched. This guide route can be reached smoothly from the roads sandwiched between the intersections by sequentially selecting roads starting from the guide start point SP and using the main roads in the shortest distance to reach the final guide point EP smoothly. It is a route like this. The road number data constituting this guide route is stored in the RAM 4 as guide route data MW. The guide route search process is equivalent to a process of calculating a road number forming the guide route by a predetermined calculation process based on the road data.
[0040]
Also, during the next guidance / display process (step 53), if the current position deviates from the guidance route, a route search process (in response to a predetermined switch operation or voice input or automatically) Step 52) is executed to reset the guidance route. This route search process (step 52) jumps if there is no change in the guide route.
[0041]
In the guidance / display processing (step 53), the guidance route obtained in the route search processing (step 52) is displayed in bold, red, blue, and other prominent colors in the image displayed on the display 33. In addition, a current position mark indicating the current position and a destination direction mark indicating the direction of the destination with respect to the current position are displayed. Then, the guidance is pronounced by voice from the speaker 13 or the guidance is displayed on the map screen so that the vehicle can travel along this guidance route. The image for displaying the guidance route is a road map including geographical information such as roads and facilities around the current position, or a housing map around the current position. Instead of the road map, a simplified guide route image may be displayed that displays only necessary minimum information such as the guide route, the destination direction, and the current position without displaying the geographical information.
[0042]
When the vehicle approaches a predetermined guidance point such as an intersection, an enlarged map near the guidance point is displayed, guidance display is performed, and voice guidance is pronounced. The current position is corrected according to the progress of the host vehicle, and the map screen is automatically scrolled as the current position moves. Further, in this guidance / display process (step 53), the displayed image is changed from a road map or a simplified guide route image to a house map, or from a house map to a road map or a simplified guide route image. To do. This map change is performed in response to a user's manual operation or automatically. For example, a road map or a simplified guidance route image is displayed when the traveling speed of the host vehicle is equal to or higher than a predetermined speed, and from the road map or the simplified guidance route image when the traveling speed of the host vehicle becomes a predetermined speed or less or stops. Switching to a residential map is possible. In addition, when the current position coordinates are out of the coordinate range of the house map while the house map is displayed, the map is switched to a road map or a simplified guide route image around the current position. When the registered destination approaches within a predetermined distance, the road map display or the simplified guide route image may be switched to the house map display.
[0043]
6). Destination setting process
FIG. 9 shows a flowchart of the destination setting process (step 51). First, it is determined whether or not the own vehicle is stopped (step 60). Specifically, the traveling speed data MV is read from the RAM 4 by the CPU 2, and it is determined whether or not the traveling speed of the host vehicle is 0 km / h or less than a predetermined speed. If it is determined that the vehicle is not stopped, the destination setting process (step 51) ends, and the process proceeds to the next route search process (step 52).
[0044]
On the other hand, if it is determined in step 60 that the vehicle is stopped, it is then determined whether or not the input is a list (step 62). In the list input operation, a destination setting operation is performed using a list corresponding to a destination search item. For example, when the destination setting process (step 51) is started, a road map around the current position is displayed on the display 33, and the characters “list input” are displayed in the road map image. When the user touches this display, a touch signal is generated from the touch switch 34, and a list input flag is set according to the touch signal. In step 62, it is determined whether or not this list input flag is set.
[0045]
In the case of list input, a menu for searching for a destination such as “address”, “telephone number”, “genre” is displayed on the display 33. When the user touches the display of the character of the desired item, a touch signal is generated from the touch switch 34, and a flag corresponding to each item such as an address flag, a telephone number flag, a genre flag, etc. Is set. In steps 64 to 68, it is determined which flag is set. In addition, the character “Return” is also displayed in the menu image. When the character “Return” is touched, the destination setting process (step 51) is terminated and the menu image is displayed on the display 33. The previous road map is displayed. The items of list input are not limited to those described above, but may include “name”, “personal name”, and the like of a place such as a company or facility in addition to the above.
[0046]
When any item in the menu image is selected by the user, an input screen corresponding to the selected item is displayed on the display 33 (step 74). This is displayed based on the destination data file and the detailed destination data file. For example, when the item “Address” is selected, the user first selects the name of the prefecture, then selects the name of the municipality, and then enters the name of the town, chome, street number, number, etc. . The address is input by selecting an initial letter from among 50 sounds or by sequentially selecting a prefecture name. The user enters an address by touching the displayed name or number display.
[0047]
When the item “telephone number” is selected, numbers 1 to 0 are displayed. The user touches on the number display and enters the phone number. When the “genre” item is selected, a list of names of a plurality of genres is displayed. The user inputs a genre by selecting a desired genre from the displayed list and touching the display. Then, since the list of places corresponding to the selected genre is displayed on the display 33 in the order of Japanese syllabary or by prefecture, the user selects a desired place. When an input for selecting a specific place as the destination is made in this way, the destination is designated by the user, and the designated destination is stored in the RAM 4 (step 76). In addition, the coordinate data of a candidate location stored in the destination data file is, for example, the coordinate data of a specific point determined in advance for each location, such as the center coordinates of the site of the location. is there.
[0048]
On the other hand, when the display of the house map is requested when the destination setting process (step 51) is started (YES in step 78), a process of designating the destination in the house map is performed (step 80). The processing in step 80 is the same as that in step 76. The operation using the touch switch 34 may be replaced with an operation using another operation switch or an operation selected by a cursor displayed on the display 33.
[0049]
7. Destination designation processing
FIG. 10 shows a flowchart of the destination designation processing in steps 76 and 80 described above. In this process, when the house map can be displayed, the house map is displayed on the display 33, the place designated by the cursor is searched based on the house shape data, and the searched place is stored in the RAM 4 as the registered destination TP. Remembered. Further, detailed information on the location designated by the cursor can be displayed on the display 33.
[0050]
First, it is determined whether or not there is a house map for specifying a destination (step 90). In the case of step 76, it is determined whether or not there is residential map data including the coordinates of the specific location selected in step 74. In the case of step 80, there is residential map data including the coordinates of the current position. Is determined. When the screen is scrolled, it is determined whether or not there is house map data including the coordinates of the cursor center. For example, if the house map data is a rectangular range, it is calculated whether the coordinates of the specific location, the coordinates of the current position, or the coordinates of the cursor center are within the range surrounded by the coordinates of the four vertices of the rectangle. Is done.
[0051]
If there is house map data including the coordinates of the specific location, the coordinates of the current position, or the coordinates of the cursor center, it is next determined whether or not a road map is displayed on the display 33 (step 91). This is a determination of whether or not the house map display flag HF is off. If a road map is displayed, the scale of the displayed road map is stored in the RAM 4 (step 92). On the other hand, when the house map is displayed on the display 33, this step 92 is jumped. Then, the CPU 2 reads out the housing map data around the current position from the housing map data file and sends it to the image processor 9. As a result, a house map having the current position as the center of the screen is displayed on the display 33 (step 93). Since the house map is displayed on the display 33, the house map display flag HF is set to ON.
[0052]
The display of the house map is color-coded according to the type of place, for example, roads and vacant areas are white, individuals and company buildings are gray, and public facilities are orange. Of course, the criteria for color coding and the displayed colors are not limited. When a specific place is selected by the list input, the coordinates indicated by the coordinate data stored in the destination data for the selected specific place are displayed on the display 33 of the house map. It is displayed so as to be the center of the screen.
[0053]
When the house map is displayed on the display 33 (step 93), the cursor KL is displayed at the center of the screen of the display 33, so the CPU 2 obtains the coordinates of the center of the cursor KL (step 94). Then, a place including the coordinates of the cursor center is searched from the house shape data file (step 99). For example, the CPU 2 obtains the coordinates of the cursor center KLC by calculating the center of the coordinate range of the image displayed on the display 33. Then, the house shape data included in the house map displayed on the display 33 is sequentially read out from the house shape data file. House shape data including the cursor center KLC is searched using shape data included in the read house shape data.
[0054]
For example, the maximum X coordinate and Y coordinate and the minimum X coordinate and Y coordinate are obtained from the shape data (X0, Y0) to (X5, Y5) of the house shape HS as shown in FIG. Then, it is determined whether or not the X coordinate (Xc) of the cursor center KLC is between the maximum X coordinate and the minimum X coordinate. This determination is made by comparing the X coordinate (Xc) of the cursor center KLC with the maximum X coordinate and the minimum X coordinate. Similarly, it is determined whether or not the Y coordinate (Yc) of the cursor center KLC is between the maximum Y coordinate and the minimum Y coordinate. Here, when the coordinates of the cursor center KLC are between the maximum X coordinate and the minimum X coordinate of the house shape HS and between the maximum Y coordinate and the minimum Y coordinate, The slope of the line segment connecting the coordinates of the cursor center KLC and the coordinates of the house shape HS is calculated.
[0055]
Then, the obtained inclination is compared with the inclination of the line segment that forms the outer periphery of the house shape HS to determine whether or not the cursor center KLC is within the range of the planar shape of the house shape HS. For example, the inclination of the line segment connecting the cursor center KLC and the coordinates (X2, Y2), the inclination of the line segment L2 connecting (X1, Y1) and (X2, Y2), (X2, Y2) and (X3, Y3). ), The cursor center KLC is determined to be between the line segments L2 and L3. The same calculation is performed for the other line segments L1, L4, L5, and L6, and it is determined that the cursor center KLC is within the range surrounded by the line segments L1 to L6 that form the outer periphery of the house shape HS. The
[0056]
When the house shape data including the cursor center KLC is retrieved in this way, it is next determined whether or not display of detailed information is requested (step 100). This determination is performed, for example, by detecting whether or not the user has touched the character “detailed information” displayed on the display 33. When the display of detailed information is requested, the list image data included in the house shape data retrieved in step 99 is read by the CPU 2 and sent to the image processor 9 (step 102).
[0057]
Thereby, the content of the detailed data regarding the place in the center of the cursor is displayed on the display 33 in the form of a list. For example, when the house shape HS is a multi-purpose building including a plurality of stores and companies, the name of the store or company for each room, the telephone number, the classification of the store or company, and the like are displayed in the list. For example, when the user is searching for “bookstore”, this list display is convenient because it can be confirmed even when this “bookstore” is on the second floor of the building. On the other hand, if the display of the detailed contents is not requested even after the predetermined standby time has elapsed, the processing of this step 102 is jumped and the list display is not performed.
[0058]
Next, it is determined whether a return is requested (step 104). For example, it is determined whether or not the character “return” displayed on the display 33 is touched by the user. If a return is requested, the destination designation process (steps 76 and 80) ends, and the process proceeds to the next route search process (step 52). If there is no return request, it is next determined whether or not a destination registration operation has been performed (step 106). For example, the characters “Register” are displayed on the screen of the display 33, and whether or not the user has touched this display is determined based on the output signal of the touch switch 34. When the registration operation is performed, the house shape data retrieved in step 99 is stored in the RAM 4 as registration destination data TP (step 108).
[0059]
When the registration operation is not performed, when the user moves the cursor KL and changes the destination, a screen scroll process (not shown) is performed by interruption, and the map image displayed on the display 33 is scrolled. The map image displayed on the display 33 is scrolled so that the cursor center KLC is always the screen center. When the scrolling is stopped, the process returns to step 90, the coordinates of the cursor center KLC are obtained (step 94), and the house shape data including the cursor center KLC is searched (step 99). When the display of detailed information is requested, a list of detailed information is displayed (steps 100 and 102). Further, when the range of the house map displayed on the display 33 is interrupted due to the scrolling of the screen, that is, when the range of coordinates displayed on the display 33 protrudes from the coordinates of the edge of the house map data, step 90 is performed. The determination is NO, and the display is switched to a road map display with the coordinates of the cursor center KLC as the center of the screen (step 97).
[0060]
On the other hand, if there is no house map data including the coordinates of the specific location, the coordinates of the current position, or the coordinates of the cursor center in step 90, it is next determined whether or not the house map is displayed on the display 33. (Step 95). This is a determination of whether or not the house map display flag HF is on. Here, if the road map is already displayed, it is not necessary to switch the map display mode, so the next step 96 is jumped. On the other hand, when the house map is displayed, the mode is switched to the road map display mode. At this time, when the display mode is switched from the road map display mode to the house map display mode, the scale data SD stored in the RAM 4 in step 92 is read (step 96).
[0061]
Then, the CPU 2 reads the road map data around the current position from the road map data file of the scale corresponding to the scale data SD and sends it to the image processor 9. As a result, a road map with the coordinates of the specific place, the current position or the cursor center as the center of the screen is displayed on the display 33 (step 97). Since the road map is displayed on the display 33, the house map display flag HF is reset to OFF. When the road map is displayed on the display 33, the cursor KL is displayed at the center of the screen of the display 33, so that the coordinates of the cursor center KLC are obtained by the CPU 2 (step 98).
[0062]
Next, it is determined whether or not a return is requested (step 104). If a return is requested, the destination designation processing (steps 76 and 80) is terminated and the next route search processing (step Go to 52). If there is no return request, it is determined whether or not the destination has been registered next (step 106). If a registration operation has been performed, the coordinates of the cursor center KLC retrieved in step 98 are the same. The indicated position is stored in the RAM 4 as registered destination data TP (step 108). When the registration operation is not performed and the user moves the cursor KL to change the designated position of the destination, the screen scroll process is performed, and the map image displayed on the display 33 is scrolled. When the scrolling is stopped, the process returns to step 90, and the coordinates of the cursor center KLC are obtained (step 98). Further, if the house map having the cursor center KLC as the screen center can be displayed in the coordinate range displayed on the display 33 by scrolling the screen, the determination in step 90 is YES, and the coordinates of the cursor center KLC are set as the screen center. The display is switched to the house map display (step 93).
[0063]
8). Map switching process
FIG. 11 shows a flowchart of the map switching process (step 110) executed in the guidance / display process (step 53). In this process, a manual operation process (step 120), a destination proximity switching process (step 122), a house map switching process (step 124), and other processes (step 126) are performed. In the manual operation process (step 120), switching between a mode for displaying a house map and a mode for displaying a road map is performed in accordance with a user's manual operation. In the destination proximity switching process (step 122), when the registered destination approaches within a predetermined distance, the road map display mode is switched to the house map display mode.
[0064]
In the house map switching process (step 124), when the traveling speed of the own vehicle falls below a predetermined speed, or when the vehicle stops, the display of the housing map is allowed, the traveling speed of the own vehicle exceeds the predetermined speed, In the case of, the display of the house map is prohibited. In addition, when there is no house map around the current position displayed on the screen of the display 33, a road map is displayed. In other processing (step 126), switching between the display mode of the house map and the display mode of the road map is performed based on other switching conditions.
[0065]
9. Manual operation processing
FIG. 12 is a flowchart of the manual operation process (step 120) in FIG. First, it is determined whether or not switching has been performed by a user's manual operation (step 130). For example, the CPU 2 determines whether or not an operation of a screen display mode changeover switch has been performed. Further, it is determined by the operation of the changeover switch whether the display of the house map is requested or the display of the road map is requested (steps 132 and 142).
[0066]
Here, if display of a house map is requested, it is next determined whether or not the image displayed on the display 33 is a house map (step 134). This is a determination of whether or not the house map display flag HF is on. The house map display flag HF is set to ON when a house map is displayed on the display 33, and is reset to OFF when a road map is displayed. In addition, the residential map display flag HF is reset to off in the initialization process.
[0067]
If the house map has already been displayed, it is not necessary to switch the map display mode, and the manual operation process (step 120) ends. On the other hand, when the road map is displayed, the house map display flag JF is set on (step 136), and the road map display flag DF is reset off (step 138). The house map display flag JF is set to ON when displaying a house map on the display 33, and is reset to OFF when a road map is displayed. Further, the road map display flag DF is set on when the road map is displayed on the display 33, and is reset off when the house map is displayed. In the initialization process, the house map display flag JF is reset to off, and the road map display flag DF is set to on.
[0068]
When the house map display flag JF is set to ON, the house map is displayed on the display 33 when other conditions are satisfied in the house map switching process (step 124) described later. Then, the manual display flag MF is set on (step 140). The manual display flag MF is a flag for storing that the display of the house map is requested by a manual operation, and is reset to OFF when the display of the road map is requested by a manual operation (step 150).
[0069]
On the other hand, if the user has operated the display mode selector switch to request a road map display mode, it is next determined whether or not the image displayed on the display 33 is a road map. (Step 144). This is a determination of whether or not the house map display flag HF is off. If the road map has already been displayed, it is not necessary to switch the map display mode, and the manual operation process (step 120) ends. On the other hand, when the house map is displayed, the road map display flag DF is set on (step 146), and the house map display flag JF is reset off (step 148). When the road map display flag DF is set to ON, the road map is displayed on the display 33 when other conditions are satisfied in the house map switching process (step 124) described later. Then, the manual display flag MF is reset to off (step 150).
[0070]
10. Destination approach switching process
FIG. 13 is a flowchart of the destination approach switching process (step 122) in FIG. In this process, when the distance between the current position and the registered destination is within a predetermined distance, a process of displaying a house map on the display 33 and guiding the registered destination in the house map is performed. When the distance between the current position and the registered destination is more than a predetermined distance, a road map is displayed on the display 33.
[0071]
First, the current position data MP and the registered destination data TP are read from the RAM 4 by the CPU 2 (steps 160 and 162). Then, by obtaining the difference between the coordinates of the current position and the coordinates of the registered destination, the linear distance from the current position to the registered destination is obtained and stored in the RAM 4 as the destination distance data MD (step 164). Instead of the linear distance, the length of the route from the current position MP to the final guide point EP through the guide route MW may be obtained.
[0072]
Next, it is determined whether or not the distance from the current position to the registered destination is within a predetermined distance (step 168). For example, it is determined whether or not the destination distance MD is less than or equal to the reference distance SL. The reference distance SL is a distance that is considered suitable for displaying route guidance on the house map because the current position approaches the destination, and is stored in the flash memory 3 in advance. Here, if MD ≦ SL, the current position has approached the destination, and therefore processing for displaying a house map on the display 33 is performed. First, it is determined whether or not a house map is displayed on the display 33 (step 170). This is a determination of whether or not the house map display flag HF is on. If the house map has already been displayed, there is no need to switch the map display mode, so this destination approach switching process (step 122) ends. On the other hand, when the road map is displayed, the house map display flag JF is set on (step 172), and the road map display flag DF is reset off (step 174). When the house map display flag JF is set to ON, the house map is displayed on the display 33 when other conditions are satisfied in the house map switching process (step 124) described later.
[0073]
On the other hand, when the destination distance MD is longer than the reference distance SL, the determination in step 168 is NO, and processing for displaying a road map on the display 33 is performed. Following step 168, it is determined whether the manual display flag MF is off (step 176). When display of a house map is requested by the user in the manual operation process (step 120), it is necessary to give priority to the user's request. For this reason, when the manual display flag MF is on, the house map display mode is continued.
[0074]
If it is determined in step 176 that the manual display flag MF is off, it is then determined whether or not the image displayed on the display 33 is a road map (step 178). This is a determination of whether or not the house map display flag HF is off. If the road map has already been displayed, there is no need to switch the map display mode, so the destination approach switching process (step 122) ends. On the other hand, when the house map is displayed, the road map display flag DF is set on (step 180), and the house map display flag JF is reset off (step 182). When the road map display flag DF is set to ON, the road map is displayed on the display 33 when other conditions are satisfied in the house map switching process (step 124) described later.
[0075]
11. Residential map switching process
FIG. 14 is a flowchart of the house map switching process (step 124) in FIG. In this process, when the house map display flag JF is set to ON in the manual operation process (step 120) and the destination approach switching process (step 122), the house map is displayed on the display 33, and the road map display flag DF. When is set to ON, a road map is displayed on the display 33. It is also possible to display a house map when the traveling speed of the vehicle is below a predetermined speed or when the vehicle is stopped, and display a housing map when the traveling speed of the vehicle is above a predetermined speed or when traveling. Is prohibited. Further, when there is no house map around the current position displayed on the screen of the display 33, a road map is displayed.
[0076]
First, the CPU 2 determines whether or not the house map display flag JF is on (step 190). If this house map display flag JF is on, the house map can be displayed, and the conditions are further determined. First, the traveling speed data MV is read from the RAM 4 by the CPU 2 (step 192). Then, based on the traveling speed data MV, it is determined whether or not the own vehicle is stopped (step 194). Specifically, it is determined whether or not the traveling speed of the host vehicle detected by the vehicle speed sensor 24 is 0 km / h or less than a predetermined speed. Here, when it is determined that the host vehicle is stopped, it is possible to display a house map, and then it is determined whether or not a house map around the current position can be displayed. First, the current position data MP is read from the RAM 4 by the CPU 2 (step 196). Then, it is determined whether or not there is a house map including the coordinates of the current position data MP (step 198). For example, if the house map data is a rectangular area, the coordinates of the current position are within the range surrounded by the coordinates of the four vertices of the square, and can the display 33 display a residential map centered on the current position? It is determined whether or not.
[0077]
If it is determined that the house map can be displayed, it is then determined whether or not a road map is displayed on the display 33 (step 200). This is a determination of whether or not the house map display flag HF is off. Here, if a road map is displayed, the scale of the displayed road map is stored in the RAM 4 (step 202). On the other hand, when the house map is displayed on the display 33, this step 202 is jumped. Then, the CPU 2 reads out the housing map data around the current position from the housing map data file and sends it to the image processor 9. As a result, a house map with the current position at the center of the screen is displayed on the display 33 (step 204). Since the house map is displayed on the display 33, the house map display flag HF is set to ON (step 206).
[0078]
On the other hand, if the house map display flag JF is off in step 190, it is next determined whether or not the road map display flag DF is on (step 208). Here, if the road map display flag DF is on, the road map is displayed. Even if display of a house map is requested, if the vehicle is traveling at a predetermined speed or more (NO in step 194), or house map data for displaying a house map around the current position on the display 33 Even if there is no road map (NO in step 198), the road map is displayed.
[0079]
If step 208 is YES and step 194 or 198 is NO, it is next determined whether or not a house map is displayed on the display 33 (step 210). This is a determination of whether or not the house map display flag HF is on. Here, if the road map is already displayed, there is no need to switch the map display mode, so this residential map switching process (step 124) is terminated. On the other hand, when the house map is displayed, the mode is switched to the road map display mode. At this time, when the road map display mode is switched to the house map display mode, the scale data SD stored in the RAM 4 in step 202 is read (step 212).
[0080]
Then, the CPU 2 reads the road map data around the current position from the road map data file of the scale corresponding to the scale data SD and sends it to the image processor 9. As a result, a road map with the current position as the center of the screen is displayed on the display 33 (step 214). Since the road map is displayed on the display 33, the house map display flag HF is reset to OFF (step 216).
[0081]
As described above, in this embodiment, when setting the destination (step 51), after the destination is selected by the list input, the house map in the range including the selected destination is automatically displayed. 33 (step 76 in FIG. 9 and step 93 in FIG. 10). As a result, the user can know the state around the destination in more detail. In addition, when the vehicle is stopped or traveling at a predetermined speed or less, by prohibiting the destination setting operation (step 60 in FIG. 9), display of the house map during the destination setting operation is also prohibited. Is done. Thereby, this navigation apparatus can be used more conveniently. Furthermore, when the image range centered on the screen at the destination, current position, and cursor center is out of the coordinate range of the house map, the house map is not displayed and a road map is displayed instead (see FIG. 10 steps 90, 97). Thereby, the display on the display 33 is not interrupted.
[0082]
Further, by switching the map image displayed on the display 33 to either a house map or a road map by manual operation (step 120 in FIG. 11), a map display according to the user's wish can be provided. . For example, it is easy to get information about the route from the road map while driving, and when setting a destination such as a destination, detailed information about each point can be obtained from the home map. Processing can be performed easily. Further, when the vehicle is traveling at a predetermined speed or more, the visibility of the screen during traveling can be improved by prohibiting the display of the house map (step 194 in FIG. 14). At present, if you want to provide detailed information on the house shape, the map scale of the house map will be quite detailed. For this reason, if it is going to track a vehicle on this residential map, the scroll speed of a map will become quick and the visibility of a map will fall. Therefore, when the vehicle is traveling at a predetermined speed or higher, the map information with good visibility can be always provided to the user by prohibiting the display of the house map.
[0083]
Further, when the current position approaches within a predetermined distance of the destination, the displayed map information is automatically switched to the house map (step 122 in FIG. 11), so that the user arrives around the destination. Can be easily recognized, and the destination can be easily confirmed from the detailed information of the point (such as the shape of the building). Therefore, even if the destination has been reached, the destination is not known and the vehicle does not pass next to the destination. Further, when the map information is switched, the scale of the map information before the switching is stored (step 202 in FIG. 14), so that even if the map switching process occurs, the unnecessary map scale is not changed. The user does not need to reset the map scale every time the map is switched.
[0084]
Note that various combinations of these processes are possible. For example, by combining the process of switching maps by manual operation and the process of switching maps when the vehicle speed is higher than or equal to a predetermined vehicle speed, even if the map is switched to a residential map by manual operation, the residential map can only be displayed below the predetermined speed. Therefore, it is possible to provide a display with high visibility at all times. Thus, the effect with higher product value can be achieved by combining the processes.
[0085]
12 Stop location setting process
For example, sudden requests such as meals and shopping may occur while the vehicle is traveling according to the guidance route. In such a case, it may be possible to search with the navigation device whether there is a place requested by the user around the current position. FIG. 15 shows a flowchart of a stopover location setting process executed in such a case. A stopover is a place where you want to stop by a sudden request as described above.
[0086]
This stop location setting process (step 250) is provided as a subroutine in the destination setting process (step 51), and is started in response to the operation of the stop location setting switch. In addition, this stop location setting process (step 250) is repeatedly executed in the same manner as the current position acquisition process (step 50), the route search process (step 52), and the guidance / display process (step 53). Further, the RAM 4 is provided with a register for storing stop area candidate data DK, stop area data DP, search range data SA, search condition data KJ, and a stop area setting flag TF.
[0087]
First, it is determined whether or not the vehicle is stopped or at a predetermined speed or less (step 252). This is the same processing as step 60 in FIG. If the vehicle is traveling, this stop-in place setting process (step 250) is not performed. On the other hand, if the host vehicle is stopped, an image requesting the next genre input is displayed on the display 33 (step 254). For example, a list of a plurality of genre names is displayed on the display 33 in the same manner as when the genre item is requested in step 68 of FIG. The user selects the genre of the place where he / she wants to drop in from the displayed list (step 256).
[0088]
Then, an image for selecting a search range, search conditions, and the like is displayed on the display 33 (step 258). The search range can be selected variously, for example, a range within a certain distance from the current position, or within the municipality of the current position. The search conditions are conditions that serve as a guide for the user to select, such as the presence / absence of a parking lot, business hours, and charges. Data corresponding to these conditions is stored in the detailed destination data file.
[0089]
When the user looks at the image and selects a search range, a search condition, and the like, the next stop is searched (step 260). Within the search range selected by the user, a location that matches the selected genre and matches the input condition is searched from the destination data file and the detailed destination data file. The searched place is stored in the RAM 4 as drop-in place candidate data.
[0090]
Next, it is determined whether or not a housing map centered on the current position or the cursor center KLC can be displayed on the display 33 (step 262). This is the same processing as step 90 in FIG. If there is residential map data centered on the current position or the cursor center KLC, it is next determined whether or not a road map is displayed on the display 33 (step 263). If a road map is displayed here, the scale of the displayed road map is stored in the RAM 4 (step 264). On the other hand, when the house map is displayed on the display 33, step 264 is jumped.
[0091]
Next, the housing map data in the range centered on the current position or the cursor center KLC is read by the CPU 2 and displayed on the display 33 (step 265). Also, the house map display flag HF is set to ON. Then, the range of the house shape of the place that was selected as a stop-by place candidate in step 260 is displayed in blue (step 266). In this step 266, the stop location candidate data stored in the RAM 4 is read out by the CPU 2, and the house shape data matching the stop location candidate data is retrieved from the house shape data file and stored in the RAM 4.
[0092]
Further, the shape data is read out from the house shape data stored in the RAM 4, and a command for displaying the planar range of the place represented by the shape data in blue is created. Then, by sending this command to the image processor 9, the range of the house shape corresponding to the designated genre is displayed in blue. For example, as shown in FIG. 16, when the house map is displayed on the display 33, the house shape of the place corresponding to the designated genre is displayed in blue. In FIG. 16, it is the part which gave the oblique line of the broken line. The user can check a place to be a stopover candidate by looking at the image.
[0093]
Next, the coordinates of the cursor center KLC are retrieved (step 268), and the house shape containing the coordinates of the cursor center is retrieved from the house shape data file (step 270). The retrieved house shape data is stored in the RAM 4. Then, the shape data of the retrieved house shape data is read out, and a command for displaying the coordinate range of the shape data in red is sent to the image processor 9, and the house shape at the place where the cursor center KLC is contained is red. It is displayed (step 272). In FIG. 16, it is the part which gave the oblique line of the continuous line.
[0094]
Note that the house shape of the place where the cursor center KLC is entered may be displayed as a three-dimensional image obtained by converting the three-dimensional appearance of this place into a planar figure. For example, like the stereoscopic image VS shown in FIG. 16, the stereoscopic image VS in which the appearance of the place is made a perspective view is displayed according to the house shape where the cursor center KLC is located. In FIG. 16, the stereoscopic image VS deviates from the cursor center KLC, but actually, this stereoscopic image VS is displayed at the position of the house with the cursor center KLC. And about the house shape from which the cursor center KLC was removed by the movement of the cursor KL, the house shape that has been displayed in red or a three-dimensional image is restored to the original display (step 274). In addition, the house shape of the place corresponding to the genre selected by the user is returned to blue display.
[0095]
When the house shape data including the cursor center KLC is retrieved in this way, it is next determined whether or not display of detailed information is requested (step 282). This determination is performed, for example, by detecting whether or not the user has touched the character “detailed information” displayed on the display 33. When the display of the detailed information is requested, the list image data included in the house shape data searched in step 270 is read by the CPU 2 and sent to the image processor 9 (step 284). As a result, similar to the processing in step 102 in FIG. 10, the contents of the detailed data regarding the location at the center of the cursor are displayed on the display 33 in the form of a list.
[0096]
Next, it is determined whether a return is requested (step 286). For example, it is determined whether or not the character “return” displayed on the display 33 is touched by the user. If a return is requested, this stop-in place setting process (step 250) ends, and the process proceeds to the next route search process (step 52). If there is no return request, it is next determined whether or not a stop location registration operation has been performed (step 290). For example, the characters “Register” are displayed on the screen of the display 33, and whether or not the user has touched this display is determined based on the output signal of the touch switch 34. When the registration operation is performed, the house shape data retrieved in step 270 is stored in the RAM 4 as the stop-by data DP (step 108).
[0097]
When the registration operation is not performed, when the user moves the cursor KL and changes the stop-by place, a screen scroll process (not shown) is performed by interruption, and the map image displayed on the display 33 is scrolled. The map image displayed on the display 33 is scrolled so that the cursor center KLC is always the screen center. When the scrolling is stopped, the process returns to step 262, the coordinates of the cursor center KLC are obtained (step 268), and the house shape data including the cursor center KLC is searched (step 270).
[0098]
Further, when detailed information display is requested, a list of detailed information is displayed (steps 282 and 284). Further, when the range of the house map displayed on the display 33 is interrupted due to the scrolling of the screen, that is, when the range of the coordinates displayed on the display 33 protrudes from the edge coordinates of the house map data, step 262 is performed. The determination is NO, and the display is switched to a road map display with the coordinates of the cursor center KLC as the center of the screen (step 97).
[0099]
On the other hand, if there is no house map data including the coordinates of the current position or the coordinates of the cursor center in step 262, it is next determined whether or not the house map is displayed on the display 33 (step 275). This is a determination of whether or not the house map display flag HF is on. Here, if the road map is already displayed, it is not necessary to switch the map display mode, so the next step 276 is jumped. On the other hand, when the house map is displayed, the mode is switched to the road map display mode. At this time, when the road map display mode is switched to the house map display mode, the scale data SD stored in the RAM 4 in step 264 is read (step 276).
[0100]
Then, the CPU 2 reads the road map data around the current position from the road map data file of the scale corresponding to the scale data SD and sends it to the image processor 9. As a result, a road map having the current position or the center of the cursor as the center of the screen is displayed on the display 33 (step 277). Since the road map is displayed on the display 33, the house map display flag HF is reset to OFF. In this road map, the location of the stop-by place candidate is displayed in a manner that is distinguished from other points such as a blue circle. When the road map is displayed on the display 33, the cursor KL is displayed at the center of the screen of the display 33, and the coordinates of the cursor center KLC are obtained by the CPU 2 (step 278).
[0101]
Next, it is determined whether or not a return is requested (step 286). If a return is requested, the stop-off location setting process (step 250) is terminated and the next route search process (step 52). Proceed to If there is no return request, it is determined whether or not the next stop location has been registered (step 288). If a registration operation has been performed, the coordinates of the cursor center KLC retrieved in step 278 are the same. The indicated position is stored in the RAM 4 as stopover data DP (step 290).
[0102]
When the registration operation is not performed and the user moves the cursor KL and changes the designated location of the stop-off place, the screen scroll process is performed, and the map image displayed on the display 33 is scrolled. When the scrolling stops, the process returns to step 262, and the coordinates of the cursor center KLC are obtained (step 278). Also, if the house map centered on the cursor center KLC can be displayed in the coordinate range displayed on the display 33 by scrolling the screen, the determination in step 263 is YES, and the coordinates of the cursor center KLC are set to the screen center. The display is switched to the house map display (step 265).
[0103]
In this way, when the stop-off place is set, in the route search process (step 52), a process for setting a guide route from the current position to the stop-off place is performed, and in the guide / display process (step 53). Then, the navigation operation is performed according to the guide route to the stop-off place. When the route search process (step 52) and the guidance / display process (step 53) are started, a process is performed to determine whether or not the stop location setting flag TF is on. Then, if the stop location setting flag TF is on, a guide route to the stop location is set and navigation is performed. If the stopover setting flag TF is off, a guidance route to the destination is set and navigation is performed.
[0104]
Thus, also when setting a stopover place, after a genre is selected, a house map in a range including the current position is automatically displayed on the display 33 (step 265). As a result, the user can know the state around the current position in more detail. Further, when the host vehicle is stopped or traveling at a predetermined speed or less, the display of the house map is also prohibited by prohibiting the destination setting operation (step 252). Thereby, this navigation apparatus can be used more conveniently.
[0105]
Furthermore, when the image range having the current position or the center of the cursor as the center of the screen is out of the coordinate range of the house map, the house map is not displayed and a road map is displayed instead (steps 262 and 277). ). Thereby, the display on the display 33 is not interrupted. Further, the house shape corresponding to the genre selected by the user is displayed in blue (step 266), and the house shape including the cursor center KLC is displayed in red or the stereoscopic image VS (step 272). This makes it easy to check the stop or the house shape at the cursor position, and can contribute to shortening the time for determining the stop.
[0106]
In addition, this invention is not limited to the said Example, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the above embodiment, when a house map or a road map is displayed on the display 33, the current position, the destination, or the cursor center is the center of the screen, but this may be centered on other coordinates. For example, when displaying the front in the traveling direction widely, a point that is a predetermined distance ahead of the current position may be the center of the screen.
[0107]
In addition, the house shape of the stop-by place candidate is displayed in blue (step 266 in FIG. 15), or the house shape including the cursor center KLC is displayed in red or a three-dimensional image VS (step 272 in FIG. 15). Of course, the colors to be displayed are not limited, and the brightness, brightness, and ground pattern of the house shape may be changed, the house shape blinks, or a mark such as an arrow pointing to the house shape is displayed. May be.
[0108]
In addition, what is necessary is just a map which can recognize the whole shape or partial shape regarding structures, such as a building, a facility, and a bridge, by a coordinate with a house map. About the display of the shape of a building, you may display all the buildings in data, and may display as needed. Further, the house shape data may be data that represents the shape of the building and detailed information belonging to the building. By forming the shape of the building as data and recognizing the shape of the building, it is possible to search for the building at the input point, and the user can easily and easily input the desired building. Can be done. In addition, if the structure shape data is used to display the building shape on the display screen, the visibility of the currently displayed point can be improved and the point can be easily recognized. Become.
[0109]
Further, although touch switch input has been described above as input means, it goes without saying that various changes such as joystick input, remote control input, and voice input are possible. Further, the stereoscopic image may be displayed at a position via a linked display object such as a leader line in addition to the position of the house shape as a stop-by place.
[0110]
In addition, as described above, the conditions for switching between the house map and the road map are selected according to the selection operation by the person on the vehicle, or according to the designation of the genre of the stop by the person on the vehicle. In addition to selecting according to whether the current position is within or outside the range stored in the house map data, selecting according to changes in the current position, or changing the destination once set Depending on the engine speed, whether the vehicle has started running within a predetermined time or outside the predetermined time, selected according to the engine speed, selected according to the time, and the remaining fuel. Select according to quantity, select according to engine temperature, select according to battery voltage, select according to brightness outside vehicle, select according to temperature outside vehicle Select according to the direction of travel of the vehicle Or, or selected according to direction of the vehicle may be selected depending on the altitude of the vehicle.
[0111]
Further, in step 60 in FIG. 9, step 194 in FIG. 14, and step 252 in FIG. 15, it is determined whether or not the own vehicle is stopped by determining whether or not the traveling speed of the own vehicle is 0 km / h or less than a predetermined speed. Although the process of determining whether or not is shown, the predetermined speed may be a slow speed, a low speed or a medium speed.
[0112]
The information storage device 37 can be set in an indoor computer or other portable computer, so that the above-described navigation processing can be executed at a place other than the vehicle. For example, a map display, a simulated movement from the current position to the destination, or a distance calculation along the road between every point on the map. The portable navigation device can be carried for outdoor activities, such as cycling, traveling, mountain climbing, hiking, fishing, and the like.
[0113]
The program and / or data may be sent (transmitted) from the external system to the flash memory 3 via the data transmitting / receiving device 27. This external system is a current location information supply system or an ATIS (traffic information service) information processing center. This external system is provided far from the navigation device. The sent program is installed (transfer / copied) in the flash memory 3 when the program is sent to the navigation device or when the operator instructs it.
[0114]
The above route search processing (step 52), guidance start point processing (step 460), final guidance point determination processing (step 462), guidance route search processing (step 464), point setting processing (step 460), etc. May be executed. This processing result and map information are sent (transmitted) from the external system to the navigation device. Based on the received processing result and map information, road information display and route guidance are executed by the navigation device. In this case, road information, map information, facility information, and traffic congestion information are collectively processed and controlled by the external system, so that more optimal route search and point setting can be performed.
[0115]
The program is automatically executed when the information storage device 37 is set in the navigation device, is automatically executed when the navigation device is turned on, or is executed by an operator's operation. Since this program and data cannot be stored in the RAM 4 in a nonvolatile manner, this installation is executed each time the power is turned on. If the information reading speed from the information storage device 37 is high, the CPU 2 may directly read and execute the program of the information storage device 37. The flash memory 3 may be a RAM with battery backup, an IC memory card, or an EPROM.
[0116]
The display 33 and the image memory 10 are divided into two or more, and the road map data and the house map data are written in each of the divided image memories 10, and the road map and the house map are simultaneously written. Is displayed. In this case, both maps are maps corresponding to the current position or destination or stopover location, but may be a map corresponding to the destination or stopover location on one side and a map corresponding to the current location only on the other side.
[0117]
The current position includes a starting point or a starting point where guidance can be provided. The departure location includes a current location or a start point where guidance can be provided. The destination includes a stopover or an end point that can be guided.
[0118]
The present invention stores information on the building such as the shape and name of the building (house shape data file), and displays a map based on the information (step 93 in FIG. 10, step 204 in FIG. 14, Step 265 in FIG. 15) may be a map display device characterized by recognizing the shape of the displayed building (shape data), and further searching for the building corresponding to the input point. , Notification (step 99 in FIG. 10, step 270 in FIG. 15) may be performed.
[0119]
Further, the present invention provides a storage means (house shape data file) for storing external information of a building such as a planar shape, a three-dimensional shape or a site of a plurality of buildings, and the building stored in the storage means. Reading means (CPU 2) for reading external information, conversion means (image processor 9) for converting the external information of the building read by the reading means into display information, and conversion by the conversion means Display means (display 33, step 93 in FIG. 10, step 204 in FIG. 14, step 265 in FIG. 15) for displaying a map showing the external information on the building based on the external information on the building. The map display device may be characterized in that the shape of the building can be recognized on the map displayed on the display means.
[0120]
The present invention also provides external information storage means (house shape data file) for storing external information of the building such as the shape of the building, and external information of the building stored in the external information storage means. Corresponding to the information, internal information storage means (such as detailed data in FIG. 6) for storing internal information such as the address, name or telephone number of the building, and the external information storage means Display means (display 33, step 93 in FIG. 10, step 204 in FIG. 14, step 265 in FIG. 15) for displaying a map showing the external information on the building based on the external information on the building, and this display means The discrimination means (step 99 in FIG. 10 and step 270 in FIG. 15) for discriminating the shape of the building from the map showing the external information of the building displayed by the above, and the building discriminated by the discrimination by this discrimination means Corresponding internal Search means (step 102 in FIG. 10, step 284 in FIG. 15) for searching for information from the internal storage means, and notification means (step in FIG. 10) for notifying internal information of the building searched by this search means 102 and step 284) of FIG. 15 may be provided.
[0121]
Furthermore, the present invention displays a house shape data storage means (house shape data file) for storing information related to a building such as the shape of the building, and map information based on the information stored in the house shape data storage means. Display means for output (display 33, step 93 in FIG. 10, step 204 in FIG. 14, step 265 in FIG. 15) and point input means (cursor KL) for inputting a point based on the information displayed on the display means , Step 94 in FIG. 10, Step 268 in FIG. 15 and a house that recognizes the shape of the building based on the house shape data storage means and searches for the building corresponding to the point input by the point input means. Shape search means (step 99 in FIG. 10, step 270 in FIG. 15), and the display means notifies the building corresponding to the point input by the input means. That (step 53 in FIG. 8) that may be a map display device according to claim.
[0122]
Further, the present invention provides a current position detecting means (step 50 in FIG. 8) for detecting the current position of the vehicle, a house shape data storage means (house shape data file) for storing the shape of the building by a coordinate sequence, Display means (display 33, step 93 in FIG. 10, step 204 in FIG. 14, step 265 in FIG. 15) for displaying and outputting map information based on information stored in the house shape data storage means, and display on the display means Point input means (cursor KL, step 94 in FIG. 10, step 268 in FIG. 15) for inputting a point based on the received information, the point coordinates input by the input means and the coordinates of the house data storage means A house shape search means (step 99 in FIG. 10 and step 15 in FIG. 15) for comparing and judging the shape of the building formed in a row and searching for the building corresponding to the input point coordinates. 270), destination setting means (step 108 in FIG. 10, step 290 in FIG. 15) for setting the building searched by the house shape searching means as a destination, and the destination setting means from the current position. Route calculating means (step 52 in FIG. 8) for calculating a route to the set destination, and the display means notifies a building corresponding to the point coordinates input by the input means (FIG. 8). The navigation device may be characterized by notifying the route calculated by the route calculating means (step 53 in FIG. 8).
[0123]
The present invention also provides a house shape data in which house shapes representing the shape of planarly partitioned places included in a predetermined area, the position of each place, and house shape data in which information about each place is associated are stored. Storage means (house shape data file), destination designation means (cursor KL) for designating a destination location by a point, and coordinate search means for retrieving the coordinates of the point designated by the destination designation means (Step 94 of FIG. 10, Step 268 of FIG. 15) and the coordinates of the place searched by the coordinate search means based on the house shape data stored in the house shape data storage means are the house shape. The house shape search means (step 99 in FIG. 10 and step 270 in FIG. 15) for searching for house shape data included in the range of, and the place represented by the house shape data searched by this house shape search means as the destination You Destination setting means (step 108 in FIG. 10, step 290 in FIG. 15), guide route setting means (step 52 in FIG. 8) for setting a guide route to the destination set by the destination setting means, Display means for displaying an image (display 33) and information display means for displaying information on the location included in the house shape data searched by the house shape search means on the display means (steps 102 and 15 in FIG. 10). 284), current position detecting means for detecting the current position of the moving means (step 50 in FIG. 8), the guide route set by the guide route setting means, and the current position detected by the current position detecting means. A navigation device characterized by comprising route display control means (step 53 in FIG. 8) for displaying the above on the display means.
[0124]
The scope of claims at the beginning of the filing of the parent application relating to the split application is as follows.
[0125]
[A] A road map formed on the basis of road information and a house map formed on the basis of information on the building such as the shape of the building are stored, and the map can be switched. Map display device.
[0126]
[B] Road information storage means for storing road information representing roads displayed as a map, and a building storage means for storing external information of buildings such as shapes of a plurality of buildings displayed as maps, Selection means for selecting the road information and external information of the building, and road information and external information of the building from either the road information storage means or the building storage means according to the selection of the selection means. A reading means for reading any one of the above, a conversion means for converting either road information or external information of the building read by the reading means into information for display as a map, and conversion by the conversion means. And a display means for displaying the road information or the external information of the building as a map.
[0127]
[C] Information storage means for storing map information; current position detection means for detecting the current position of the vehicle; input means for inputting information necessary for route calculation such as a destination; and input by the input means A route calculation unit that calculates a route based on information and map information stored in the information storage unit; a route calculated by the route calculation unit; and a current position detected by the current position detection unit. Route guidance means for performing route guidance, display means for displaying the map information read from the information storage means and the route calculated by the route calculation means, map information switching means for switching the map information to be displayed on the display means, The information storage means relates to a road map information storage means for storing road map data formed based on road information, and a building such as a shape of the building. Housing map information storage means for storing the housing map data formed based on the information, and the map information switching means determines the predetermined condition, thereby determining the road map data from the road map information storage means. A navigation apparatus, wherein the map information created by reading out the map information and the map information created by reading out the housing map data from the housing map information storage means are switched and output to the display means.
[0128]
[D] When the current position detecting means detects the speed of the vehicle, and the map information switching means determines that the vehicle speed detected by the current position detecting means is equal to or higher than a predetermined vehicle speed, The navigation device according to [C], wherein the map information to be displayed is switched from a house map to a road map.
[0129]
[E] selecting means for selecting map information manually or automatically, wherein the map information switching means determines the map information selected by the selecting means, and displays the map information to be displayed on the display means. The navigation device according to [C] above, wherein the navigation device is switched.
[0130]
[F] further comprising a remaining distance calculating means for calculating a distance from the current position detected by the current position detecting means to a destination input by the input means, wherein the map information switching means includes the remaining distance calculating means. Based on the calculated remaining distance, it is determined that the distance from the destination is within a predetermined distance, and the map information displayed on the display means is switched from a road map to a residential map. The navigation device according to [C].
[0131]
[G] House shape data storage means for storing a house shape representing the shape of a planarly partitioned place included in a predetermined area, the position of each place, and house shape data in which information about each place is associated with each other. Display means for displaying an image; and housing map data generating means for generating house map data for displaying a house map displayed using a house shape of a planarly partitioned place included in the predetermined area. Based on the residential map data generated from the residential map data generating means, the residential map display control means for displaying the residential map on the display means, and the road network included in the predetermined area and the geographical information are used for display. A road map data generating means for generating road map data for displaying the road map and a road map on the display means based on the road map data generated from the road map data generating means. A road map display control means to display, a destination designation means for designating a destination location by a point, a coordinate search means for retrieving the coordinates of the point designated by the destination designation means, and the house shape Based on each house shape data stored in the data storage means, house shape search means for searching for house shape data in which the coordinates of the point searched by the coordinate search means are included in the range of the house shape; Destination setting means whose destination is the place represented by the house shape data searched by the house shape search means, genre selection means for selecting the genre of the stop, and search condition input means for inputting the search condition for the stop Corresponding to the genre selected by the genre selection means, the location data storage means for storing information relating to a place that may be selected as a stopover location, and the search condition A stop location candidate search means that searches the location data storage means for a location that matches the condition input by the input means, and the home shape of the location searched by this stop location candidate search means A stop area candidate display control means for displaying on the house map in a manner distinguished from the above, a stop area specifying means for specifying a stop area from among the stop area candidates displayed by the stop area candidate display control means, and this Stop location display control means for displaying the house shape of the stop location specified by the stop location specifying means in a manner distinct from other stop location candidates, and the coordinates of the point specified by the stop location specifying means The stop location coordinate search means for searching for and the stop location coordinate search based on each house shape data stored in the house shape data storage means. A stop land house shape search means for searching for house shape data in which the coordinates of the location of the stop place searched by the search means are included within the range of the house shape, and a house shape searched by the stop place house shape search means A stop location setting means that uses the place represented by the data as a stop location, a guide route to the destination set by the destination setting means, and a guide route to the stop location set by the stop location setting means are set. A guide route setting means, a current position detecting means for detecting the current position of the moving means, a guide route set by the guide route setting means, and a current position detected by the current position detecting means are displayed on the display means. When the guide route is displayed on the display means by the route display control means and the route display control means, the current position is a predetermined distance from the destination. Destination approach determining means for determining whether or not the vehicle is approaching within, first display switching means for determining which of the housing map and the road map is displayed on the display means according to a predetermined condition; When the destination is set by the destination setting means, the second display switching means for displaying a residential map around the destination and the destination approach determining means set the current position to the destination. A third display switching means for displaying a residential map around the current position when it is determined that the vehicle is approaching within a distance, and a range of the residential map displayed on the display means by the residential map display control means is the display A housing map display range discriminating means for discriminating whether or not the coordinate range in the screen displayed on the means is out of the display range discriminating means; Fourth display switching means for switching from the display of the house map to the display of the road map when the coordinate range in the screen displayed on the display means is out of the range, and the first, second, third or Scale storage means for storing the scale of the road map when the road map displayed on the display means is switched to the house map by the fourth display switching means; and the first, second, third or second scale map. When the road map displayed on the display means is switched to the house map by the display switching means 4 and switched to the road map again, the scale is displayed at the scale stored in the scale storage means. Holding means; manual switching means for determining which of the housing map and the road map is displayed on the display means by manual operation of the user; and the moving means A movement determination means for determining whether or not the vehicle is moving; and, when the movement determination means determines that the movement means is moving, prohibits the display of the residential map by the residential map display control means. A navigation apparatus comprising: means for displaying information on a place included in the house shape data searched by the house shape search means on the display means.
[0132]
[H] A road map formed on the basis of stored road information is read out and output, and is also a stored house map, which is formed based on at least external information of the building relating to the shape of the building. A computer program for map information processing, characterized in that a read-out house map is read out and output, and both the read-out outputs are switched according to the detected predetermined condition, and either map is output. Memorized medium.
[0133]
[I] The predetermined condition includes an operator's selection operation, a change in the current position, a change in the traveling state of the own vehicle, a change in the speed of the own vehicle, a change in the direction of the own vehicle, a change of the destination or a destination or It is a change in the distance to the stopover, and the external information of the building is the number of floors, area, height, advertising body, color, planar shape, three-dimensional shape or external feature of the building, and the housing map [H], which also contains internal information on the name, telephone number, address, postal code, field, industry, brand, item, price, performance, performance or internal characteristics of the building A medium storing a computer program for the map information processing described.
[0134]
[J] Based on the means for storing a plurality of map information for forming a plurality of maps having different degrees of detail for the same area, a means for outputting the plurality of stored map information, and the input point Means for outputting the map information having a different degree of detail if the map information corresponding to the inputted point and the map information having a different degree of detail from the already outputted map information is stored. A map display device for navigation characterized by comprising:
[0135]
[K] With respect to means for storing a plurality of map information for forming a plurality of maps having different degrees of detail for the same region, the stored plurality of map information is output, and based on the input points, If the map information according to the input point is different from the already output map information and the map information is stored in the map information, the map information having the detail level is output. Map display method for navigation.
[0136]
[L] Means for storing housing map information for forming a housing map, wherein the housing map information includes at least external information and internal information of a building in the housing map, and a predetermined search condition or Based on the search range, a means for searching for the building that matches the search condition or the search range from the internal information of the building in the house map, and the building based on the external information of the building. A map display device for navigation, comprising: a housing map representing external information of an object; and means for displaying the searched external information of the building in a different manner.
[0137]
[M] Means for storing house map information for forming a house map, wherein the house map information is predetermined with respect to a means comprising at least external information and internal information of a building in the house map. Based on the search condition or search range of, the building that matches the search condition or search range is searched from the internal information of the building in the residential map, and based on the external information of the building, A map display method for navigation, characterized in that a house map representing external information of the building is displayed and the external information of the searched building is displayed differently.
[0138]
[N] The internal information of the building in the housing map is information on the field of the building, the search condition or search range is the field, and the means for searching is a building corresponding to this field. The map display device for navigation according to the above [L], which searches for an object.
[0139]
[O] The map display device for navigation according to the above [L], wherein the search range is a range of a certain distance from the current position, or the search range is in a municipality of the current position.
[0140]
[P] Based on the means for storing a plurality of map information for forming a plurality of maps having different degrees of detail for the same region, a means for outputting the plurality of stored map information, and the input point Means for outputting the map information having a different degree of detail if the map information corresponding to the inputted point and the map information having a different degree of detail from the already outputted map information is stored. A map display device for navigation characterized by comprising:
[0141]
[Q] With respect to means for storing a plurality of map information for forming a plurality of maps having different degrees of detail for the same area, the stored plurality of map information is output, and based on the input points, If the map information according to the input point is different from the already output map information and the map information is stored in the map information, the map information having the detail level is output. Map display method for navigation.
[0142]
[R] Shape data surrounded by a line segment that creates a boundary of a partition or site on the map or the outer periphery of the building, and character or numerical information that identifies the partition or site or the building itself, or the partition or site or construction House shape data associated with detailed information consisting of character or numerical information for identifying facilities existing in the object, point input means for specifying a desired point on the map, and specified by the point input means The house shape search means for detecting the house shape data included in the inner region where the determined point is determined by the shape data, and information for displaying the detailed information of the house shape data detected by the house shape search means on the display device An information display device comprising display means.
[0143]
[S] The information display device according to [R] described above further includes data of a three-dimensional appearance shape corresponding to the section, site, or building, and detailed information of the detected house shape data is displayed on the display device. An information display device characterized in that the three-dimensional appearance shape is also displayed at the same time.
[0144]
[T] The character or numerical information for identifying the block or site or the building itself is one or more pieces of information among the specific name, telephone number, address, floor number, or area of the block or site or the building. Yes, the character or numerical information for identifying the facility existing in the above-mentioned section or site or building means that when there are a plurality of facilities or stores in the section or site or building, Each store's name, telephone number, address, industry, business content, performance, item, price, performance, performance, brand, or field, and the detailed information includes the above section or site or The information display device according to the above [R] or [S], wherein adjacent road data adjacent to a building or / and coordinate data of an entrance of the section or site or a building are included.
[0145]
[U] The information display device described in [R], [S], or [T], and route guidance means that searches for a route to a destination or stopover and performs guidance for moving along the route. A navigation device comprising:
[0146]
[V] Using the information display device described in [R] or [S] or [T] and the detailed information displayed on the display device as a judgment material, the house shape data including the detailed information is a destination or a stopover When designated as a ground, destination setting means in which the geographical coordinates of the house shape data are set as a guide point, and a route to the guide point are searched, and guidance for moving along the route is performed. A navigation device comprising route guidance means.
[0147]
[W] Shape data surrounded by a line segment that creates a boundary of a partition or site on a map or a perimeter of a building, and character or numerical information that identifies the partition or site or the building itself, or the partition or site or construction When the desired point on the map is designated by the point input means, the desired point on the map is provided with the house shape data associated with the detailed information composed of the character or numerical information for identifying the facility existing in the object. Detecting the house shape data included in the inner area determined by the shape data, and displaying the detailed information of the house shape data thus detected on a display device.
[0148]
[X] Shape data surrounded by a line segment that creates a boundary of a section or site on the map or the outer periphery of the building, and character or numerical information that identifies the section or site or the building itself, or the section or site or construction When the desired point on the map is designated by the point input means, the desired point on the map is provided with the house shape data associated with the detailed information composed of the character or numerical information for identifying the facility existing in the object. Detects the house shape data included in the inner region determined by the shape data, displays the detailed information of the house shape data thus detected on the display device, and searches for a route to the destination or stopover point, A navigation method characterized by performing guidance for moving along the route.
[0149]
[Y] Boundary of a section or site on a map or shape data surrounded by a line segment that forms the outer periphery of the building, and character or numerical information that identifies the section or site or the building itself, or the section or site or construction When the desired point on the map is designated by the point input means, the desired point on the map is provided with the house shape data associated with the detailed information composed of the character or numerical information for identifying the facility existing in the object. Detects the house shape data included in the inner region determined by the shape data, displays the detailed information of the house shape data thus detected on a display device, and uses the displayed detailed information as a determination material, When the house shape data including detailed information is designated as a destination or stopover, the geographical coordinates of the house shape data are set as a guide point, and a route to the guide point is proposed. Navigation method and performing.
[0150]
[Z1] A house shape defined by shape data or / and three-dimensional appearance shape data surrounded by a line segment that creates a boundary of a partition or site on a map or a building, and the house shape itself or the inside of the house shape is identified. And a notifying means for determining a display mode of the shape of each house shape according to the detailed information of each of the plurality of house shapes.
[0151]
[Z2] A house shape determined by shape data or / and three-dimensional appearance shape data surrounded by a line segment that creates a boundary of a section or site on a map or an outer periphery of a building, and the house shape itself or the inside of the house shape is identified. A display method for determining the display mode of the shape of each house shape based on the detailed information of each of the plurality of house shapes.
[0152]
[Z3] The detailed information is the number of floors, areas, heights, names, names of each facility or store, or individual names, telephone numbers, addresses, and zip codes in the building. The map display device according to the above [Z1], which includes one or more information of a field, a business type, a brand, and an item.
[0153]
[Z4] The map display device according to [Z1] or [Z3], wherein the display form of the shape of the house is a display color difference, a fill line type difference, a blinking difference, a brightness difference, or a brightness difference .
[0154]
[Z5] A house shape defined by shape data surrounded by a line segment that creates a boundary of a section or site on a map or a building, a point input unit that specifies a desired point on the map, and a point input unit that specifies The house shape search means for selecting the house shape whose geographical coordinates are included in the shape data from a plurality of house shapes existing on the display map, and the house shape selected by the house shape search means, A map display device comprising map display means for displaying the house shape on a map with a three-dimensional appearance.
[0155]
[Z6] A house shape determined by shape data surrounded by a line segment that creates a boundary of a section or site on a map or an outer periphery of a building, and / or three-dimensional appearance shape data of the section or site or structure, and a map A point input means for designating a desired point above, and a house for selecting the house shape including the geographical coordinates of the point designated by the point input means from the plurality of house shapes existing on the display map A map display device comprising: a shape search means; and a map display means for displaying the house shape on the map with the three-dimensional appearance shape data for the house shape selected by the house shape search means.
[0156]
[Z7] The map display means, when the three-dimensional appearance shape data does not exist in the house shape selected by the house shape search means, the shape of the house shape is not selected. The map display device according to [Z5], wherein the display is performed in a mode different from the display mode of the house shape.
[0157]
[Z8] A house shape determined by shape data surrounded by a line segment that creates a boundary of a section or site on a map or an outer periphery of a building, and / or three-dimensional appearance shape data of the section or site or building; When a desired point on the map is specified by the point input means, a house shape in which the geographical coordinates of the point specified by the point input means are included in the shape data is selected from a plurality of house shapes existing on the display map. And displaying the house shape on the map with the three-dimensional appearance shape data for the selected house shape.
[0158]
[Z9] A house shape determined by shape data surrounded by a line segment that creates a boundary of a section or site on a map or an outer periphery of a building, and / or three-dimensional appearance shape data of the section or site or building; When a desired point on the map is specified by the point input unit, the house shape including the geographical coordinates of the point specified by the point input unit is included in the shape data from a plurality of house shapes existing on the display map. When the selected three-dimensional appearance shape data does not exist in the selected house shape, the shape of the house shape is displayed in a mode different from the display mode of other house shapes that are not selected. Map display method.
[0159]
[Z10] A map of a house that can recognize a house shape determined by shape data or / and three-dimensional appearance shape data surrounded by a line segment that creates a boundary of a partition or site on a map or an outer periphery of a building, and a connection between each road A map that is displayed on the screen when it is detected that it meets a predetermined condition, and a scale storage means that stores a display scale of the house map or road map displayed on the screen. The display switching means for switching the map from one map to the other map, and the display switching means switches the display from one map of the house map or road map to the other map, and then again from the other map to the other map. One map is displayed on the display scale scale which the said scale memory | storage means memorize | stores when a display is returned to a map, The map display apparatus characterized by the above-mentioned.
[0160]
[Z11] A map of a house capable of recognizing a house shape defined by shape data or / and three-dimensional appearance shape data surrounded by a line segment that creates a boundary of a section or site on a map or an outer periphery of a building, and a connection between each road A road map expressed in minutes, storing a display scale of the house map or road map displayed on the screen, and when detecting that the predetermined condition is met, the map displayed on the screen Or, after switching from one map of the road map to the other map, when the display is returned from the other map to the one map again, one map is displayed at the stored scale of scale displayed above. A map display method characterized by the above.
[0161]
[Z12] The predetermined condition is that when the moving speed of the vehicle is equal to or lower than a predetermined value and / or when the map is selected or specified manually and / or when the selection is canceled, and / or the vehicle The map display device according to the above [Z10], wherein the geographical interval from the current position to the destination or stopover is equal to or less than a predetermined value.
[0162]
(Summary of Examples)
The embodiment described below stores a road map formed on the basis of road information and a house map formed on the basis of information on the building such as the shape of the building (road data file), and if necessary. Map switching (map switching processing in FIG. 11, steps 90, 91, 93, 95, 97 in FIG. 10, steps 262, 263, 265, 275, 277 in FIG. 15). It is a navigation device.
[0163]
The embodiment described below includes information storage means (road data file) for storing map information, current position detection means (step 50 in FIG. 8) for detecting the current position of the vehicle, and routes such as destinations. Route calculation for calculating a route based on input means for inputting information necessary for calculation (destination specifying process in FIG. 9), information input by the input means, and map information stored in the information storage means Means (step 52 in FIG. 8), route guidance means (step 53 in FIG. 8) for performing route guidance based on the route calculated by the route calculation means and the current position detected by the current position detection means; The display means (display 33) for displaying the map information read from the information storage means and the route calculated by the route calculation means, and the map information to be displayed on the display means are switched. Map information switching means (map switching processing in FIG. 11, steps 90, 91, 93, 95, 97 in FIG. 10, steps 262, 263, 265, 275, 277 in FIG. 15), and the information storage means includes: Road map information storage means (road map data file) for storing road map data formed on the basis of road information, and a house for storing house map data formed on the basis of information on the building such as the shape of the building Map information storage means (residential map data file), and the map information switching means reads map information created by reading road map data from the road map information storage means by judging a predetermined condition; Switching between the map information created by reading out the house map data from the house map information storage means and outputting it to the display means It is also a navigation device.
[0164]
The display between the house map and the road map is switched according to a predetermined condition (determination). This makes it possible to switch between a house map and a road map according to various conditions, such as when route visibility is required or when location confirmation is required.
[0165]
Since the display of the road map and the house map can be switched according to the judgment of the predetermined condition, the visibility of the route can be improved during the route guidance, and the point can be fixed under the predetermined condition. It can be done easily. In addition, by providing a map information selection means, it becomes easy to recognize a spot even when the spot is set.
[0166]
When the current position of the vehicle has reached the vicinity of the destination, it has been switched to a residential map where it is easy to check the location, so it is possible to accurately determine the location of the destination, Arrival can be made easy. Further, since the road map is displayed when the traveling speed of the vehicle is equal to or higher than the predetermined speed, the visibility of the map while traveling is improved. In addition, when it is desired to check the location of a building, the building can be easily recognized by displaying a house map on condition that the vehicle speed is a predetermined vehicle speed or less.
[0167]
According to the above-described embodiment, a plurality of pieces of map information for forming a plurality of maps having different degrees of detail for the same area are stored, and the map information corresponding to the inputted points is based on the inputted points. However, if the map information having a different level of detail from the already output map information is stored, the map information having a different level of detail is output. Therefore, it is possible to automatically output a map with a different level of detail from the output map for the input point, and to output a map with various levels of detail and freely select the level of detail of the map. There is an effect such as being able to.
[0168]
【The invention's effect】
As described above in detail, in the present invention, the shape of the section or site or the building is stored as data, and the point specified by the point input means is included in the area surrounded by the outer shape of the building. At this time, it is determined that the building having the outer shape is designated. Then, the user can easily determine whether the facility is the destination facility by directly observing the appearance of the building or displaying detailed information such as the business contents of the building. Thereby, the search of the building with respect to the input point can be performed quickly and easily, and the user can perform the input operation of the desired building requested easily and easily. In addition, by using the building shape data and displaying the three-dimensional appearance shape of the building on the display screen, it is possible to improve the identification or visibility of the currently designated point, It becomes easy to recognize the point.
[Brief description of the drawings]
FIG. 1 is an overall circuit diagram of a navigation device.
FIG. 2 is a diagram showing the contents stored in the information storage device 37;
FIG. 3 is a diagram showing a display example of a road map.
FIG. 4 is a diagram showing a display example of a house map.
FIG. 5 is a diagram showing a part of data stored in a RAM 4;
FIG. 6 is a diagram showing the contents of house shape data.
FIG. 7 is a diagram showing an example of house shape data and a cursor KL.
FIG. 8 is a diagram illustrating a flowchart of overall processing.
FIG. 9 is a flowchart of destination setting processing.
FIG. 10 is a flowchart of destination designation processing.
FIG. 11 is a flowchart of map switching processing.
FIG. 12 is a flowchart of manual operation processing.
FIG. 13 is a flowchart of a destination approach switching process.
FIG. 14 is a diagram illustrating a flowchart of a house map switching process.
FIG. 15 is a diagram illustrating a flowchart of a stop-in place setting process.
FIG. 16 is a diagram illustrating an example of color display and stereoscopic display of a house shape.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Central processing unit, 2 ... CPU, 3, 5 ... ROM, 4 ... RAM, 9 ... Image processor, 10 ... Image memory, 11 ... Sound processor, 13 ... Speaker, 20 ... Current position detection apparatus, 21 ... Absolute direction Sensor: 22 ... Relative orientation sensor, 23 ... Distance sensor, 24 ... Vehicle speed sensor, 25 ... GPS receiver, 26 ... Beacon receiver, 27 ... Data transceiver, 30 ... I / O device, 33 ... Display, 34 ... Touch panel, 37: Information storage device.

Claims (2)

Shape data enclosed by line segments that make up the perimeter of the building, character or numerical information for identifying the building itself or a facility existing in the building, and adjacent road data adjacent to the building or / and Storage means for storing house shape data associated with detailed information composed of coordinate data of the entrance of the building;
A point input means for specifying a desired point on the map;
A house shape search means for searching for the house shape data included in the inner region where the point specified by the point input means is determined by the shape data;
Information display means for displaying the detailed information of the house shape data searched by the house shape search means on a display device;
Using the detailed information displayed on the display device as a judgment material, when the house shape data including the detailed information is designated as a destination or stopover, the geographical coordinates of the house shape data are set as a guide point. Ground setting means;
A navigation apparatus comprising: route guidance means for searching for a route to the guidance point and performing guidance for moving along the route. 2. The navigation device according to claim 1, further comprising three-dimensional appearance shape data corresponding to a building, and when the detailed information of the retrieved house shape data is displayed on a display device. A navigation device characterized in that a shape is also displayed at the same time.

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