KR100430036B1 - Apparatus and method for providing car navigation and geographic information - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle navigation and geographic information providing apparatus and a method thereof, comprising a digital map and geographic information for a service area and a database for storing and managing navigation information between unit distances in a service area. By using the GPS receiver to provide vehicle navigation and geographic information to an external terminal provided with a GPS receiver, it is possible to respond to changes in geographic information more quickly.

Description

Apparatus and method for providing car navigation and geographic information}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for providing vehicle navigation and geographic information, and in particular, to manage electronic maps and control programs for providing vehicle navigation and geographic information in real time, and to require its own location information and surrounding geographic information. It is an object of the present invention to provide a vehicle navigation and geographic information providing apparatus and a method for providing corresponding information to a terminal by using a communication network to respond more quickly to changes in geographic information.

The vehicle navigation system, which uses the Global Positioning System (GPS) developed by the US Department of Defense for military purposes, tracks the current position of a driving vehicle and accurately displays the result on a map. That is, the vehicle navigation system calculates the current position of the moving object by receiving radio waves indicating latitude, longitude, and altitude from GPS satellites consisting of 21 navigational satellites and 3 spare satellites to cover all locations around the world. Display the map information including the current location to the driver. At this time, the displayed map information includes various information necessary for driving, such as the position of the own vehicle, the name of the driving road, the direction to the destination, the degree of intersection crossing, the optimum route to the destination, and the other roads. It may also contain useful information such as traffic conditions, gas stations, or government offices.

1 is a block diagram of such a conventional vehicle navigation system. Referring to FIG. 1, a conventional vehicle navigation system includes a GPS receiver 10 for receiving positioning information from a GPS satellite through a separate antenna, and a CD-ROM 20 for storing numerical map data and attribute information of the map. , A CD-ROM driver 30 for driving the CD-ROM 20, a CD-ROM decoder 40 for decoding data stored in the CD-ROM 20, and a BIOS-ROM in which a control program is stored. (50), the microprocessor 60 for controlling the operation of each device by the program stored in the BIOS-ROM 50, the graphics processor 70 for processing graphics data, the data processed in the graphics processor 70 is displayed And a display unit 90 for outputting an output signal from the signal conversion circuit 80 to the user.

The conventional vehicle navigation system configured as described above receives positioning data (eg, latitude, longitude, altitude, etc.) from the GPS communication satellite through the GPS receiver 10 to calculate the current position of the vehicle and then corresponds to the position. The numerical map is read from the CD-ROM 20 and displayed on the display unit 90. The calculated position of the own vehicle is converted to coordinates and displayed on the road displayed on the display unit 90.

At this time, in order to extract the numerical map of the desired position from the CD-ROM 20 and display it on the display unit 90, the microprocessor 60 first, through the CD-ROM driver 30, the CD-ROM 20 Drive to extract the desired information, and interpret this information by the CD-ROM decoder 40. After the information is processed by the graphic processor 70 to produce a map graphic, the signal conversion circuit 80 converts the map graphic into a signal for processing by the display unit 90 to the display unit 90. send.

The microprocessor 60 refers to a control program stored in the BIOS-ROM 50 to process this series of operations. The BIOS-ROM 50 includes a real-time driving system, a path search program, a path display program, and a destination setting program. Various control programs for operating the vehicle navigation system, such as a zoom program, a scroll program, a scroll program, a route guidance program, a menu display program, a GPS reception program, a map matching program and a setting program, are stored.

However, such a conventional vehicle navigation system separately stores numerical map data stored in advance as in the example of FIG. 1, driving means and decoding means for reading the same, and control programs for providing various services to the user. Since it has to be provided, when the previously stored numerical map data is changed, there is a disadvantage in that a complicated procedure is required to up-grade the data. That is, in the case of the conventional vehicle navigation system, when the pre-stored numerical map data is changed, all the CD-ROMs distributed to each user must be replaced, and each user visits the A / S center, etc. The control program stored in the ROM had to be exchanged.

Therefore, in the case of the conventional vehicle navigation system, it was not possible to quickly respond to changes in the geographic information, each user had to take the inconvenience. In addition, the conventional vehicle navigation system has to use a separate CD-ROM and expensive components such as a CD-ROM driver and a decoder for each vehicle navigation system, which increases the price of the vehicle navigation system itself and increases its volume. There was this.

Accordingly, the present invention has been made to solve the conventional problems as described above, the object of the present invention is to manage the electronic map and control programs for providing vehicle navigation and geographic information in real time, and their location information The present invention provides a vehicle navigation and geographic information providing apparatus and method for providing a corresponding information to a terminal requiring surrounding geographic information by using a communication network so that it can respond more quickly to changes in geographic information.

1 is a block diagram of a conventional vehicle navigation system,

2 is a diagram illustrating an implementation of a vehicle navigation system using a vehicle navigation and geographic information providing apparatus according to an embodiment of the present invention;

3 is an internal block diagram of a vehicle navigation and geographic information providing apparatus according to an embodiment of the present invention;

4 is an exemplary diagram of a DB structure managed by a vehicle navigation and geographic information providing apparatus according to an embodiment of the present invention;

5 is a flowchart illustrating a process for providing location information to an external terminal according to an embodiment of the present invention;

6 is a flowchart of a process for providing geographic information to an external terminal according to an embodiment of the present invention;

7A to 7C are exemplary views of a vehicle driving information management DB structure according to an embodiment of the present invention.

8 is a flowchart illustrating a service providing method applying vehicle driving information management according to an exemplary embodiment of the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

100: GPS satellite 200: CNS vehicle

300: wireless Internet network 310: wireless Internet base station

320: Internet gateway 330: Internet

400: web-server 500: vehicle navigation / geographic information providing server

510: geographic information management DB 520: navigation information management DB

530: DB management unit 540: control unit

550: I / F section 560: data receiving section

570: terrain calculation unit 580: phase calculation unit

590: viewing processing module 600: data transmission unit

610: driving information management DB

In order to achieve the above object, a vehicle navigation and geographic information providing apparatus provided by the present invention includes a database unit for storing and managing a numerical map and geographic information for a service area, navigation information between unit distances within a corresponding service area, and a GPS receiver. A data receiving unit for receiving an information request message including GPS data from an external terminal provided with a control unit, a control unit generating a control signal for extracting location information of the corresponding terminal based on the GPS data received through the data receiving unit, and the control unit A database manager for searching the database unit to extract the location information of the corresponding terminal by using the GPS data received through the data receiving unit under control of the control unit; and the database unit based on the location information extracted from the database manager unit; On the numerical map stored in The terrain calculation unit for extracting the position information of the horse, and performs the terrain calculation for providing the driving information based on the position information to the terminal, and the terminal based on the position-related numerical information extracted from the database management unit It extracts the topographic information, the phase information and the attribute information of the area where the location is located, and extracts the geographic information of the area around the location of the terminal, and the processing result of the topographic calculation unit and the phase calculation unit. And a data transmission unit for transmitting the processing result of the viewing processing module to a corresponding terminal.

On the other hand, the vehicle navigation and geographic information providing method provided by the present invention to achieve the above object, when receiving a location information request message including GPS data from an external terminal equipped with a GPS receiver, based on the GPS data A first process of searching and extracting location information of a corresponding terminal on a digital map, a second process of performing terrain calculation to provide driving information based on the extracted location information, and based on the extracted location information The third process of extracting topographic information, phase information, and attribute information of the region where the terminal is located to extract the surrounding geographic information of the region where the terminal is located; In order to display the location of the terminal and the driving information and the surrounding geographic information of the terminal based on the screen Ring is configured to include a fourth step of transmitting to the terminal.

Hereinafter, an apparatus and method for providing vehicle navigation and geographic information according to the present invention will be described in more detail with reference to the accompanying drawings.

2 is a diagram illustrating an implementation of a vehicle navigation system using a vehicle navigation and geographic information providing apparatus according to an embodiment of the present invention. Referring to FIG. 2, the CNS vehicle 200 in which a car navigation system (CNS) is installed receives its location information from a GPS satellite 100, and then, through the wireless Internet network 300. Communicate with the vehicle navigation and geographic information providing server (500). At this time, the wireless Internet network 300 is generally a wireless Internet base station 310 for communicating with the terminal to use the wireless Internet, and the Internet gateway for performing the connection between the Internet 330 and the wireless Internet base station 310 320.

On the other hand, when the wireless web browser is installed in the CNS vehicle 200, is connected to the web-server 400 through such a wireless Internet network 300, the vehicle navigation and geographic information providing server 500 of the present invention through the web You can also connect with

The CNS vehicle 200 may transmit the location data received from the GPS satellite 100 to the vehicle navigation and geographical information providing server 500 of the present invention to receive its location information, surrounding geographical information, and driving information on a map. have.

3 is an internal block diagram of a vehicle navigation and geographic information providing apparatus according to an embodiment of the present invention. Referring to FIG. 3, the vehicle navigation and geographic information providing apparatus of the present invention includes a database unit such as a geographic information management DB 510, a navigation information management DB 520, and a driving information management DB 610, and these databases. DB manager 530, a controller 540, an I / F unit 550, a data receiver 560, a terrain calculator 570, a phase calculator 580, a viewing processing module 590, and a data manager. It is configured to include a receiver 600.

The geographic information management DB 510 stores and manages a numerical map and geographic information for the service area, and the navigation information management DB 520 stores and manages navigation information between unit distances in the service area.

The data receiver 560 receives an information request message including GPS data from an external terminal (eg, a CNS vehicle, hereinafter referred to as a 'CNS vehicle') in which a GPS receiver is installed. That is, after the CNS vehicle receives the GPS data from the GPS satellites, when the CNS vehicle requests its location information or the surrounding geographical information together with the GPS data, the CNS vehicle receives the information request message and transmits the information request message to the controller 540.

Then, the controller 540 generates a control signal for extracting location information of the corresponding terminal based on the GPS data included in the information request message. That is, the DB manager 530 generates a control signal for searching the geographic information management DB 510 and detects the navigation information or the navigation information management DB 520 by generating a control signal for detecting the navigation or driving related information. To send).

The DB manager 530 retrieves the location information of the CNS vehicle by searching for the geographic information management DB 510 and the navigation information management DB 520 with the GPS data transmitted from the CNS vehicle in response to the control signal.

The terrain calculation unit 570 extracts the location information of the corresponding terminal from the numerical map stored in the geographic information management DB 510 based on the location information of the CNS vehicle, and provides the CNS vehicle with driving information based on the location information. Performs terrain calculation to provide, and the phase calculation unit 580 is based on the geographic information extracted from the geographic information management DB 510 and navigation information management DB 520, the terrain for the area where the CNS vehicle is located Information, phase information, and attribute information are extracted, and the CNS vehicle extracts geographical information around the area.

The viewing processing module 590 collects the processing results of the terrain calculation unit 570 and the phase calculation unit 580, converts the position of the CNS vehicle into a form for displaying on the screen, and outputs the result to the data transmitter 600. The data transmitter 600 receives the signal and transmits the signal to the corresponding CNS vehicle.

On the other hand, the I / F unit 550 is selectively installed to provide an interface with the operator to input the operator's processing message, the geographic information management DB 510, navigation information management DB 520 by the input content And the contents of the database managed by the driving information management DB 610 are updated.

In addition, in the case of the operation information management DB 610, which is additionally added to utilize the apparatus of the present invention for logistics, it manages vehicle operation information based on the purpose of the group for each group having CNS vehicles as members. For example, in the case of a group for the purpose of taxi operation management, the vehicle operation information of the members who have joined the group, that is, the road situation of the road on which the vehicle is currently driving, the location information of the vehicle, etc. are managed, In the case of the group which manages the transportation of logistics, it manages the information such as the current driving status, the destination, the starting point, the waypoint and the load of the vehicle. Therefore, the vehicles in the same group can check the location and the driving state of each other with reference to the driving information management DB (610).

In this case, the controller 540 generates a command corresponding to the purpose of each group based on the operator's processing message input through the I / F unit 550, and is registered in the driving information management DB 610. Control to send a command to the vehicle of the corresponding.

On the other hand, the data transmission unit 560 and the data receiving unit 600 is connected to a web server connected to the Internet of the device of the present invention, and supports data transmission and reception with an external terminal connected through a web server. That is, it can be connected to the web server through the protocol (HTTP) used in the web server.

4 is an exemplary diagram of a DB structure managed by a vehicle navigation and geographic information providing apparatus according to an embodiment of the present invention. In particular, geographic information generally consists of spatial data representing geographical location information and attribute data representing attribute information of the location, where (a) represents an example of a spatial data structure, and (b) represents an attribute data structure. An example is shown. On the other hand, (c) shows an example of the structure of the vehicle navigation information management DB.

Referring to (a), the spatial data 510a includes an ID 511a / latitude 512a / longitude 513a / phase relation 514a fields. Referring to (b), the attribute data 510b includes an ID. 511b / location name 512b / industry 513b / address 514b / telephone number 515b / peripheral geographic information 516b. Therefore, spatial data and attribute data having the same ID are combined with each other to display the surrounding geographical information of the CNS vehicle.

Meanwhile, referring to (c), the navigation information management DB 520 may start field coordinate 521 / end node coordinate 522 / link length 523 / expected time 524 / pass code 525. It includes. If the driver inputs a desired destination, the estimated driving path between the current location and the destination is calculated by combining links of a predetermined distance from the current location of the CNS vehicle to the destination, and then the estimated driving path is determined. Estimated time to reach the destination is calculated by summing the estimated time required for each link. By repeating the above process, the predicted driving route having the shortest arrival time is matched with the map data displayed on the CNS vehicle, and the estimated time is displayed on one side of the display unit. At this time, such a series of processes is merely an example for providing driving information, it is possible to use a variety of different methods for this.

5 is a flowchart illustrating a process for providing location information to an external terminal according to an embodiment of the present invention. Referring to FIG. 5, when a location information request message including GPS data is received from an external terminal equipped with a GPS receiver (S510), an internal database is searched based on the GPS data to search for location information of the corresponding terminal on a numerical map. Extract (s520). At this time, the database stores and manages the numerical map and geographic information of the service area and the navigation information between unit distances in the service area.

Then, terrain calculation for providing driving information based on the extracted location information is performed (S530), and based on the extracted location information, terrain information, phase information, and attribute information of the region where the corresponding terminal is located are extracted. Thereafter, phase calculation for extracting geographical information of the region where the corresponding terminal is located is performed (s540).

In addition, the terrain calculation and phase calculation results are collected and converted into a form for displaying the location of the corresponding terminal, the driving information of the corresponding terminal, and the surrounding geographical information on the screen (s550), and transmitting the result to the corresponding terminal (s560). do.

At this time, prior to searching the database in the location information extraction process (s520), a process of searching for its own cache memory is first performed. This is to provide a faster search service, and the cache memory has a predetermined period of time. The location information detected during or the location information frequently detected from the external terminal is stored.

6 is a flowchart illustrating a process for providing geographic information to an external terminal according to an embodiment of the present invention. Referring to FIG. 6, when an external terminal inputs an arbitrary place name and requests neighboring geographic information corresponding to the place name (S610), the place name is searched for by searching an internal database that stores and manages geographic information about a service area. Extract the area corresponding to (S620).

After extracting the topographical information, the phase information, and the attribute information of the corresponding area based on the extracted area, a phase calculation is performed to extract the surrounding geographical information of the area corresponding to the place name (S630). In addition, the phase calculation result is converted into a form for displaying on the screen (s640) and transmitted to the corresponding terminal (s650).

In this case, as in the case of the location information request, the cache memory is used to provide a faster search service.

7A to 7C are exemplary views of a vehicle driving information management DB structure according to an embodiment of the present invention. 7A to 7C illustrate an example of a group for the purpose of transportation management of logistics such as courier service. First, FIG. 7A illustrates a vehicle driving information management DB managed in the example of the group ('610 in the example of FIG. 3'). An example of a field configuration of ') is shown, FIG. 7B illustrates an example of a database structure for integrated management of fields such as FIG. 7A, and FIG. 7C illustrates an example of data managed in each terminal.

First, referring to FIG. 7A, the vehicle driving information management DB 610 may include a group ID 611 / ID 612 / current location information 613 / a departure point 614 / a waypoint 615 / a destination 616 / It consists of fields, such as cargo load 617 / driver information 618 and so on. At this time, the remaining fields except for the group ID 611, the ID 612, and the current position information 613 may be freely changed according to the purpose of the group. Also, an example of a database structure for integrated management of these fields is shown in FIG. 7B. FIG. 7C illustrates an example of data managed in each terminal. Each terminal includes an ID / group ID / individual information field, and individual current information can be managed in real time.

8 is a flowchart illustrating a service providing method using vehicle driving information management according to an exemplary embodiment of the present invention. Referring to FIG. 8, first, vehicle driving information based on the purpose of the group is constructed as a separate driving information database for each group having a predetermined number of vehicles equipped with a GPS receiver, and the driving information database is real-time. Manage (s810). At this time, in order to manage the current location of each vehicle in real time, by receiving GPS data from the GPS receiver attached to each vehicle to grasp the current location information of the vehicle in real time, the location information is the driving information of the vehicle Managed by inclusion.

When the 'first vehicle # 1', which is a member of any one of the groups, requests the driving information of the 'second vehicle # 2' included in the same group (s820), After extracting driving information of the 'second vehicle # 2' with reference to the driving information database, the information is provided to the 'first vehicle # 1' (s830).

In addition, if a request is made to send a command to any one vehicle that is a member of the group at the request of the group operator (s840), the vehicle is extracted with reference to the driving information database (s850). The operator sends a command requested by the operator (s860). This is applicable to systems such as the operation of current call taxis.

The above description is merely an example of an embodiment, and the present invention is not limited to the above-described embodiment and can be variously changed within the scope of the appended claims. For example, the shape and structure of each component specifically shown in the embodiment of the present invention can be modified.

The apparatus and method for providing vehicle navigation and geographic information of the present invention as described above manage electronic maps and control programs for providing vehicle navigation and geographic information in a separate device configured independently of the vehicle in real time, and provide their own location information. And by providing the corresponding information using the communication network to the terminals that need the surrounding geographic information, there is an advantage that it can respond more quickly to the change of geographic information.

In addition, in order for the electronic map and control programs to be installed and driven for each vehicle, an expensive additional device (for example, a CD-ROM driver and a decoder, etc.) installed in the vehicle can be omitted, so that the vehicle navigation service can be used. The cost of the user can be reduced, and the volume of the device installed in the vehicle can be reduced.

Claims (11)

A database unit for storing and managing numerical maps and geographic information of service areas and navigation information between unit distances within the service areas; A data receiver for receiving an information request message including GPS data from an external terminal provided with a GPS receiver through a wireless Internet network; A controller for generating a control signal for extracting location information of a corresponding terminal based on the GPS data received through the data receiver; A database manager for searching the database unit to extract location information of the corresponding terminal by using the GPS data received through the data receiving unit under the control of the controller; Extracting location information of the corresponding terminal from the numerical map stored in the database unit based on the location information extracted by the database management unit, and performing terrain calculation for providing the driving information based on the location information to the corresponding terminal; Terrain computing, A phase calculator for extracting topographic information, phase information, and attribute information of the region where the terminal is located based on the position-related numerical information extracted by the database manager to extract the surrounding geographical information of the region where the terminal is located; A viewing processing module which collects the processing results of the terrain calculating unit and the phase calculating unit and converts the position of the corresponding terminal into a form for displaying on the screen; And a data transmitter for transmitting the processing result of the viewing processing module to the corresponding terminal. The method of claim 1, Further comprising an interface unit for providing an interface with the operator to input the processing message of the operator, The database unit management unit Vehicle navigation and geographic information providing apparatus, characterized in that for updating the contents of the database unit in response to a processing message of the operator input through the interface unit. The method of claim 1, wherein the database unit Further comprising a driving information management database unit for managing the vehicle driving information based on the purpose of the group for each group having the predetermined number of vehicles equipped with the terminal, Vehicle navigation and geographic information providing apparatus characterized in that the vehicles included in the same group can identify the location of each other by referring to the driving information management database. The method according to any one of claims 1 to 3, The control unit And controlling the vehicle to send a command for the vehicle registered in the driving information management database unit based on the operator's processing message input through the interface unit. The method of claim 1, Vehicle navigation and geographic information providing device, characterized in that for using the wireless Internet to communicate with the external terminal is installed GPS receiver. The method of claim 1, wherein the data transmitter and the data receiver A vehicle navigation and geographic information providing device connected to a web-server connected to the Internet and supporting data transmission / reception with an external terminal connected through the web-server. Built-in database to store and manage numerical map and geographic information of service area and navigation distance between unit distance in the service area, and provide vehicle navigation and geographic information to external terminal equipped with GPS receiver using wireless internet. In the vehicle navigation and geographic information providing method, Receiving a location information request message including GPS data from an external terminal provided with a GPS receiver, searching for a database based on the GPS data and extracting location information of the corresponding terminal from a digital map; A second process of performing terrain calculation to provide driving information based on the extracted location information; A third process of extracting topographic information, phase information, and attribute information of the region where the terminal is located based on the extracted location information to extract the surrounding geographical information of the region where the terminal is located; A fourth process of collecting the processing results of the second process and the third process, converting the position of the terminal, the driving information of the terminal and the surrounding geographic information based on the process, into a form for displaying on the screen, and transmitting the result to the terminal Vehicle navigation and geographic information providing method comprising a. The method of claim 7, wherein Receiving a location information request message for a place name from the external terminal, searching for the database and extracting an area corresponding to the place name; A sixth process of extracting geographic information, topological information, and attribute information of the corresponding region based on the region extracted in the fifth process to extract surrounding geographic information; And a seventh process of converting the surrounding geographic information extracted in the sixth process into a form for displaying on a screen and transmitting the converted geographic information to a corresponding terminal. The method according to claim 7 or 8, Providing the vehicle navigation and geographic information, characterized in that the information extracted from the database search results in the first process and the fifth process is cached in a separate memory area so that the same data can be referred to later when searching for the same data. Way. The method according to claim 7 or 8, An eighth process of constructing vehicle driving information based on the purpose of the group as a separate driving information database for each group having the predetermined number of vehicles equipped with the terminal and managing the driving information database in real time; When the 'first vehicle # 1', which is a member of any one of the groups, requests the driving information of the 'second vehicle # 2' included in the same group, the driving information database is requested. A ninth process of extracting driving information of the 'second vehicle # 2' by providing the information to the 'first vehicle # 1'; If the command is to be sent to any one vehicle that is a member of the group at the request of the operator for each group, further comprising a tenth step of sending a command to the vehicle with reference to the driving information database; Vehicle navigation and geographic information providing method characterized in that. The method of claim 10, wherein the eighth process Receiving GPS data from the terminal attached to each vehicle to grasp the current location information of the vehicle in real time, the vehicle navigation and geographic information providing method characterized in that the location information is included in the operation information of the vehicle to manage .