JP3414224B2 - Communication type navigation system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention communicates at least position information between a navigation device installed in a mobile station and a map information device installed in a base station to display map information around the position. The present invention relates to a communication navigation system that can be used.

[0002]

2. Description of the Related Art As a conventional communication navigation system, for example, the one shown in FIG. 9 is known. This is a navigation device 101 mounted on a vehicle,
A wireless communication device is connected to the map information device 103 installed in the base station, and the position information transmitted from the map information device 103 on the base station side can be taken into the navigation device 101 via the wireless communication device. System.

The navigation device 101 displays an electronic map centered on this position based on the fetched position information, so that the position information on the electronic map designated by the base station is visually recognized on the vehicle side. It is possible to use it as a system that can be used not only between a base station and a vehicle but also between vehicles.

[0004]

However, since the conventional communication type navigation system is configured to simply transmit the position information, for example, as shown in FIG. 9, the map information device of the base station is used. If the specifications of the electronic map viewed by the operator in 103 and the electronic map on the vehicle side are different, different electronic maps are displayed between the two, giving different visibility to each other. When exchanging location information while looking at a map,
There were problems such as not being able to clearly convey information or misleading information. Even if the specifications are the same between the two, the scale and the direction of the map (for example, “North is up”)
The same problem occurred even when (), etc.) were different.

The present invention has been made in view of the above,
It is therefore an object of the present invention to provide a communication type navigation system capable of giving the same visibility as the displayed map information and the like even in a remote place.

[0006]

The invention according to claim 1 is
In order to solve the above-mentioned problems, a communication navigation that communicates at least position information between a navigation device installed in a mobile station and a map information device installed in a base station to display map information around the position. In the system, the navigation device has a transmission means for transmitting display method information for determining the display content displayed on the display screen of the device, and the map information device has a display received from the navigation device. Calculation means for calculating display conversion information for converting the method information so as to correspond to the display screen of the device, and display contents including at least map information based on the display conversion information are the same between both devices. It has as a gist that it has the display means which displays like this.

In order to solve the above-mentioned problems, the display means of the map information device has a display area for the map information displayed on the navigation device, which includes the display area. The point is to display in layers.

[0008]

According to the present invention described in claim 1, the navigation device transmits the display method information for determining the display content displayed on the display screen of the device, while
The map information device calculates display conversion information for converting the display method information received from the navigation device so as to correspond to the display screen of the device, and based on this display conversion information, a display including at least map information. By displaying the contents so that they are the same between both devices, even when at least the position information is communicated and the map information around the position is displayed, the displayed map information has the same identity and common visibility. Can be given.

According to the second aspect of the present invention, the display on the map information device is an overlayer display including the display area of the map information displayed on the navigation device. As a result, a part of the display screen can be given the same visibility and common visibility between both devices.

Furthermore, by performing a route search by the map information device arranged in the base station, the search process can be performed at high speed, and as a result, the processing load on the mobile station can be reduced.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 and 2 are diagrams showing a navigation device 1 and a map information device 31, respectively, which constitute a communication type navigation system according to a first embodiment of the present invention.

First, the configuration of the navigation device 1 mounted on the mobile station shown in FIG. 1 will be described. The display unit 3 has, for example, a liquid crystal display, and displays an electronic map according to drawing data output from the control unit 5.

The control unit 5 controls the mobile station internal storage unit 7, the positioning unit 9, the route search unit 17, the input unit 21, and the transmission / reception unit 23 according to the control program and control data stored therein. The mobile station internal storage unit 7 includes unique information of the navigation device 1, display method information for determining a display method of an electronic map, position information indicating points such as a destination and a waypoint, information indicating a route guidance method, and past travel. The locus and information accompanying it are stored.

The positioning unit 9 receives radio waves transmitted from a positioning satellite via the GPS antenna 11 and positions the current position of the vehicle as absolute position information. GPS antenna 11
When the radio wave from the satellite cannot be received via the positioning unit 9, the positioning unit 9 receives positioning data input from the positioning unit of the gyro sensor 13 mounted on the vehicle and the positioning unit of the distance sensor 15 mounted on the wheel. Based on, the current position of the vehicle is measured using the autonomous navigation that estimates the current position according to the cumulative calculation method. The positioning unit 209 also determines the traveling direction of the vehicle based on the traveling locus of the vehicle.

A road map information storage unit 19 is connected to the route search unit 17, and based on the destination information and search conditions from the input unit 21 and the road map data from the road map information storage unit 19, Determine and determine the route to the ground. The road map information storage unit 19 is a drive device that reads recorded data from a CD-ROM in which road map data is recorded by using an optical pickup. The input unit 21 operates and inputs destination information, search conditions, and the like. The transmission / reception unit 23 transmits / receives communication information to / from another communication device using wireless communication.

Next, the configuration of the map information device 31 installed in the base station shown in FIG. 2 will be described.

The control unit 33 is a base station internal storage unit 3 according to a control program and control data stored therein.
5, road map information storage unit 37, input unit 39, transmission / reception unit 4
1, the display unit 43, the display conversion information calculation unit 45 is controlled.
The base station internal storage unit 35 uses the command from the input unit 39,
Display method information that determines the display method of the electronic map of the base station,
The internal storage content of the mobile station internal storage unit 7 of the navigation device 1 received by the transmission / reception unit 41 of the base station is stored.

The road map information storage unit 37 is a drive device for reading recorded data from a CD-ROM in which road map data is recorded by using an optical pickup. The input unit 39 operates and inputs destination information, search conditions, and the like. The transmission / reception unit 41 transmits / receives communication information to / from another communication device using wireless communication. The transmitting / receiving units 23 and 41 shown in FIGS. 1 and 2 are the personal digital cellular PDCs.
As in the case of the above, a telephone set adopted in Japan as the second generation digital transmission method in mobile communication may be used. In this case, the telephone number of the other party is called to the wireless line, and the data is set after the line is established. Communication needs to be started.

The display unit 43 displays the road map data read from the road map information storage unit 37 by the control unit 33 based on the display method information for determining the display method of the electronic map stored in the base station internal storage unit 35. indicate. The display conversion information storage unit 47 is connected to the display conversion information calculation unit 45, and calculates the display conversion information based on the display method information stored in the display conversion information storage unit 47.

The display conversion information storage unit 47 stores in advance display method information for determining the display method of the electronic map for each unique information of the navigation device mounted on the vehicle. The unique information of this navigation device is the manufacturer name,
Model number, model name, date of manufacture, software version, manufacturer of electronic map used, model number,
The information includes at least one of the model name, the date of manufacture, and the electronic map version. Further, in the display conversion information storage unit 47, information indicating a plurality of navigation models and map models is stored in advance, and by using these by switching, it is possible to generate display method information compatible with various navigation devices. .

The operation of the map information device 31 arranged in the base station will be described below with reference to FIG. 4 and the flowchart shown in FIG. 3 is a flowchart for explaining the operation of the map information device 31 arranged in the base station of the communication navigation system according to the first embodiment of the present invention. FIG. 4 is a diagram showing an outline of the communication type navigation system according to the first embodiment of the present invention and a usage state thereof.

First, in step S10, it is determined whether or not there is a communication request from the mobile station to the transceiver unit 41 of the base station. If there is a communication request from the mobile station, step S20
On the other hand, if there is no communication request, the process proceeds to step S1.
Return to 0 and repeat the process.

If there is a communication request from the mobile station to the base station, then in step S20, the base station sends the mobile station internal storage stored in the mobile station internal storage unit 7 of the mobile station. Request to send information. On the other hand, in the mobile station, the specific information of the navigation device or the display method information is read from the mobile station internal storage unit 7, the current position information measured by the positioning unit 9 is read, and the display method information and the current position information are transmitted / received by the transmission / reception unit. Send from 23.

Next, in step S30, the base station receives the unique information or the display method information of the navigation device 1 and the current position information transmitted from the mobile station via the transmitting / receiving unit 41, and stores them in the base station internal storage unit 35. Store. In addition,
The unique information of the navigation device 1 is the manufacturer name,
Model number, model name, date of manufacture, software version, manufacturer of electronic map used, model number,
At least one of the model name, manufacturing date, and electronic map version is included. Also,
The display method information of the electronic map includes at least one of the background color of the map, road color, icon, display / non-display, day / night, northward, and reduced scale.

Next, in step S40, the display conversion information calculation unit 45 reads the unique information of the navigation device 1 from the base station internal storage unit 35, and uses this unique information as a search key from the display conversion information storage unit 47. The display method information corresponding to the information is searched, and the display conversion information is calculated based on the display method information that is the search result. Next, in step S50, the control unit 33 controls the display conversion information calculation unit 45.
The road map information corresponding to the current position information of the mobile station is read from the road map information storage unit 37 on the basis of the display conversion information created in 1., and the road map information is superimposed on the display method information and displayed on the display unit 43. draw.

As a result, as shown in FIG. 4, the electronic map viewed by the operator on the map information device 31 of the base station and the scale and direction of the electronic map of the navigation device 1 of the mobile station (for example, "north Since “up” etc.) can be matched, when the operators of the base station and the mobile station exchange information while looking at the electronic map, the map information can be accurately transmitted, and It can be prevented from being transmitted.

In this embodiment, the electronic map displayed on the base station is displayed on the basis of the electronic map displayed on the mobile station. On the contrary, the control unit 33
Extracts display method information of the electronic map from the base station internal storage unit 35 based on the display conversion information created by the display conversion information calculation unit 45, and transmits this display method information from the transmission / reception unit 41 to the transmission / reception unit 23 of the mobile station. Then, the mobile station uses the road map information storage unit 1 based on the received display method information of the electronic map.
The road map information read from 9 can be superimposed and drawn on the display unit 3.

Further, another mobile station may be used in place of the base station of the communication navigation system according to this embodiment. That is, an apparatus having the same device configuration as the mobile station may be used.

(Second Embodiment) FIG. 5 is a diagram showing a configuration of a map information device which can be arranged in a base station of a communication type navigation system according to a second embodiment of the present invention. In the first embodiment, the route search unit is installed in the mobile station and the route search unit is not installed in the base station. That is, in the first embodiment, when the route search is performed, the command required for the route search is remotely operated from the input unit 39.

On the other hand, in the second embodiment, the route search unit 53 is installed in the base station, and the route search is mainly performed by the base station. However, since the mobile station has the same configuration as that described in the first embodiment, description thereof will be omitted. First, the configuration of the map information device 51 arranged in the base station of the communication navigation system shown in FIG. 5 will be described.

The control unit 33 stores the base station internal storage unit 3 in accordance with control programs and control data stored therein.
5, the input unit 39, the transmission / reception 41, the display unit 43, the display conversion information calculation unit 45, and the route search unit 53 are controlled. A road map storage unit 55 is connected to the route search unit 53,
The route to the destination is determined and determined based on the destination information and search conditions from the input unit 39 and the road map data from the road map information storage unit 55.

FIG. 6 is a flow chart for explaining the operation of the map information device 51 arranged in the base station of the communication type navigation system according to the second embodiment of the present invention. The operation of the map information device 51 arranged in the base station will be described below using this flowchart. First,
In step S110, it is determined whether or not there is a communication request from the mobile station to the base station. If there is a communication request from the mobile station, the process proceeds to step S120, while if there is no communication request, the process returns to step S110 to repeat the process.

Here, when a communication request is made from the mobile station to the base station, in step S120, the base station sends the mobile station internal storage stored in the mobile station internal storage unit 7 of the mobile station. Request to send information.

On the other hand, in the mobile station, the unique information or the display method information of the navigation device is stored in the mobile station internal storage unit 7.
The position information indicating the point such as the destination and the waypoint, the route guidance method information is read, the current position information measured by the positioning unit 9 is read, and the transmitter / receiver 23 together with the current position information.
Send from

Next, in step S130, the mobile station stores at least the unique information of the navigation device and the display method information of the electronic map from the mobile station internal storage unit 207, the position information indicating the point such as the destination and the waypoint, and the route guidance method. Information is received via the transmitting / receiving unit 41 and stored in the base station internal storage unit 35.

The position information representing points such as destinations and transit points includes a list of destinations or transit points set by the user in addition to the current position information. In addition, the route guidance information for determining the route guidance method is at least one of setting information such as “use high speed”, “use ferry”, “time priority”, “distance priority”, and the current setting route. It includes one.

Next, in step S140, desired information such as destination setting, waypoint setting, and search conditions of the mobile station user accepted by the operator of the base station is input from the input unit 39, and the route searching unit 53 After setting these desired information as search conditions, the travel route is searched.

As described above, the route search is performed by the base station, so that the operation load and processing load on the mobile station can be reduced. Further, by using a high-speed computer for the route search unit 53, it is possible to perform route search faster than the route search unit 17 mounted on the vehicle.

Next, in step S150, after the search result of the route search unit 53 is stored in the base station internal storage unit 35, the base station internal storage information representing this search result is transmitted from the transmission / reception unit 41 to the mobile station. . Here, in the mobile station, the base station internal storage information of the map information device 51 transmitted from the base station is received via the transmission / reception unit 23, and the mobile station internal storage unit 7 is received.
To store.

Next, in step S160, the display conversion information calculation unit 315 of the base station reads the unique information of the navigation device 1 from the base station internal storage unit 35, and the display conversion information storage unit 47 uses this unique information as a search key. The display method information corresponding to this unique information is searched from, and the display conversion information is calculated based on the display method information that is the search result.

Finally, in step S170, the control unit 3
3 reads the road map information corresponding to the current position information of the mobile station from the road map information storage unit 37 based on the display conversion information created by the display conversion information calculation unit 45, and the road map based on this display method information. Information is superimposed on the display unit 43
Draw on.

Further, another mobile station may be used in place of the base station of the communication navigation system according to this embodiment. That is, an apparatus having the same device configuration as the mobile station may be used.

(Third Embodiment) FIG. 7 is a diagram showing a configuration of a map information device arranged in a base station of a communication type navigation system according to a third embodiment of the present invention. In the second embodiment, the base station performs the route search horizontally, but since the display unit 43 is small on the same screen as the mobile station, when the route search is performed, the map is scrolled or the scale is changed. Was occurring frequently.

On the other hand, in the third embodiment, compared with the display area of the electronic map displayed on the navigation device 1, the display is an over layer display. However, since the mobile station has the same configuration as that described in the first embodiment, description thereof will be omitted.

First, the configuration of the map information device 71 arranged in the base station of the communication navigation system according to the third embodiment shown in FIG. 7 will be described. The control unit 33 has a base station internal storage unit 35, an input unit 39, a transmission / reception unit 41, a display conversion information calculation unit 45, a route search unit 53, and an overlayer display conversion unit 73 according to a control program and control data stored therein. And control the information database 75.

An overlayer display unit 77 capable of overlayer display is connected to the overlayer display conversion unit 73, and based on the latitude / longitude information of the four corners or diagonals of the display unit 3 of the mobile station, the mobile station is displayed. The same simulative display frame 79 as that of the display unit 3 is created and output to the overlayer display unit 77. The overlay display unit 77 includes the same simul display frame 79 as the display unit 3 of the mobile station. This simul display frame 79 is based on the four corners or diagonal latitude and longitude information of the display unit 3 of the mobile station, and the overlayer display conversion unit 7
3 and is output to the overlayer display unit 77.

The information database 75 is information necessary for the mobile station, such as convenience store information, family restaurant information, fast food restaurant information, gas station information, vehicle dealer information, vehicle repair shop information, rental car information, vehicle road service information. , Vehicle-related information including any one or more of the drive-in information, and
Transportation information including one or more of station information, sightseeing bus information, and route bus information, and amusement park information,
At least one of the above, such as tourist information including any one or more of park information and museum information, is included. Further, it also includes usage information of information necessary for the mobile station.

FIG. 8 is a flow chart for explaining the operation of the map information device 71 arranged in the base station of the communication type navigation system according to the third embodiment of the present invention. The operation of the map information device 71 arranged in the base station will be described below using this flowchart. First,
In step S210, it is determined whether or not there is a communication request from the mobile station to the base station. If there is a communication request from the mobile station, the process proceeds to step S220, while if there is no communication request, the process returns to step S210 and the process is repeated.

Next, in step S220, when there is a communication request from the mobile station to the base station for the setting indicating the stop-point (here, as an example, a convenience store), the base station requests the mobile station. , Request mobile station internal storage information.

Here, in the mobile station, the mobile station internal storage unit 7
To at least one of the unique information of the navigation device 1 and the display method information of the electronic map, the position information indicating the point such as the destination and the waypoint, the route guidance method information, the past travel locus and the information accompanying it. It is read and transmitted from the transmitting / receiving unit 23. Next, in step S230, the mobile station internal storage information transmitted from the mobile station is received via the transmission / reception unit 41 and stored in the base station internal storage unit 35 of the base station.

The information associated with the past traveling locus as described above is at least one of speed, azimuth, and mobile phone quality information at a past traveling point.
It is information including one.

Next, in step S240, the route searching unit 53 performs a surrounding search according to the user's request for setting a stop-by point received by the operator of the base station. This surrounding search is performed on the information database 75 of the base station, and the usage information is added to the displayed icon. By using the usage information, it is possible to determine whether or not it is available at the time of guiding the user. As shown in FIG. 7, the usage information 83 indicating that the mobile station cannot be used and the usage information 85 indicating that the mobile station can be used are displayed over the icon although they are not displayed on the display unit 3 of the mobile station.

For example, if a convenience store is
It is assumed that there are no cases in the same display area 79 as the display section 3 of the mobile station, but there are three cases in the display section 77 capable of overlayer display. Usage information indicating a convenience store is also added to the icon displayed on the overlayer display portion 77. Here, three convenience stores are displayed, usage information 83 indicating that one is unavailable, and usage information 85 indicating that one is available, although not displayed on the display unit 203 of the mobile station, are added.

Therefore, the operator of the base station has two convenience stores nearby, and that the convenience store on the route to the destination will be guided (ie, "There is a convenience store 300m ahead. It will not be displayed on the map, but it will be visible soon! ”) To the user of the mobile station. The recommended route 81 to the available convenience store is also displayed at the time when it is found.

Next, in step S250, after storing this search result in the base station internal storage unit 35, the base station internal storage information is transmitted to the mobile station via the transmission / reception unit 41. As a result, the mobile station receives the base station internal storage information from the base station via the transmitting / receiving unit 23 and stores it in the mobile station internal storage unit 7. Further, in step S260, the display conversion information calculation unit 45 of the base station reads the unique information of the navigation device 1 from the base station internal storage unit 35 and uses it as a search key to search the display conversion information storage unit 47 to obtain the display conversion information. calculate.

Finally, in step S270, the control unit 3
3 extracts the display method information of the electronic map from the base station internal storage unit 35 based on the display conversion information created by the display conversion information calculation unit 45, and displays the display method information and the road map information of the road map information storage unit 55. Are superimposed and drawn on the display unit 77.

It should be noted that instead of the base station of the communication navigation system according to the present embodiment, a device having the same device configuration as that of the mobile station may be used.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a navigation device which can be installed in a mobile station of a communication type navigation system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a map information device that can be arranged in a base station of the communication navigation system according to the first embodiment of the present invention.

FIG. 3 is a map information device 3 arranged in a base station of the communication navigation system according to the first embodiment of the present invention.
3 is a flowchart for explaining the operation of No. 1.

FIG. 4 is a diagram showing an outline of a communication type navigation system according to a first embodiment of the present invention and a usage state thereof.

FIG. 5 is a diagram showing a configuration of a map information device that can be arranged in a base station of a communication type navigation system according to a second embodiment of the present invention.

FIG. 6 is a map information device 5 arranged in a base station of a communication navigation system according to a second embodiment of the present invention.
3 is a flowchart for explaining the operation of No. 1.

FIG. 7 is a diagram showing a configuration of a map information device which can be arranged in a base station of a communication navigation system according to a third embodiment of the present invention.

FIG. 8 is a map information device 7 arranged in a base station of a communication navigation system according to a second embodiment of the present invention.
3 is a flowchart for explaining the operation of No. 1.

FIG. 9 is an explanatory diagram showing an outline of a conventional communication type navigation system and its usage.

[Explanation of symbols]

1 Navigation device 31 Map information device 33 Control unit 35 Base Station Internal Storage 37 Road map information storage 41 Transmitter / receiver 43 Display 45 Display conversion information calculation unit 47 Display conversion information storage unit

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI H04B 7/26 H04B 7/26 E H04Q 7/34 106A H04Q 7/04 C (56) Reference JP-A-10-300499 (JP , A) JP-A-6-244749 (JP, A) JP-A-9-280878 (JP, A) JP-A-8-87234 (JP, A) JP-A-62-224898 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01C 21/00 B60R 16/02 G08G 1/0969 G09B 29/00 H04B 1/16 H04Q 7/34

Claims (2)

(57) [Claims] 1. A communication-type navigation system for communicating at least position information between a navigation device mounted on a mobile station and a map information device installed at a base station to display map information around the position. The navigation device includes a transmission unit that transmits display method information for determining display contents displayed on the display screen of the device, and the map information device includes display method information received from the navigation device. And a calculation means for calculating display conversion information for converting the display so as to correspond to the display screen of the device, and based on the display conversion information, display contents including at least map information are the same between both devices. A communication-type navigation system comprising: display means for displaying. 2. The display means of the map information device, for a display area of the map information displayed on the navigation device, is an overlayer display including the display area. Communication type navigation system.