CN101188103A - Vehicle navigation control system and navigation method - Google Patents

Abstract

The invention relates to a vehicle navigation control system and a method, which comprises a communication bus, a navigation device, a display device and a vehicle control computer. The navigation device is connected to the communication bus to provide at least one navigation message. The display device is used for simultaneously displaying a human-machine interface (HMI) and at least one prompt message. The vehicle control computer is connected to the communication bus and the display device, controls at least one vehicle device of a vehicle through a human-computer interface displayed by the display device, captures the at least one navigation message of the navigation device through the communication bus, correspondingly converts the at least one navigation message into at least one prompt message, and outputs the prompt message to the display device for simultaneous display.

Description

Vehicle navigation control system and navigation method

technical field

The invention relates to the technical field of vehicle navigation, in particular to a vehicle navigation control system and a navigation method.

Background technique

Due to the rapid advancement of electronic technology, a vehicle can be easily equipped with a vehicle control computer to control the peripheral devices of the vehicle. The vehicle control computer can not only control the vehicle's air-conditioning equipment, vehicle sunroof, vehicle headlights and other peripheral devices, the vehicle control computer can also provide multimedia audio and video output through a screen, thereby increasing the added value of the vehicle.

In recent years, due to the popularization of the Global Position System (GPS), which can provide a current location and navigation functions, it is gradually favored by drivers.

Since the vehicle control computer needs to control the peripheral devices of the vehicle, it is often integrated into the vehicle. The Global Positioning System (GPS) is usually installed in the vehicle as a handheld device. FIG. 1 is a schematic diagram showing the use of a known vehicle control computer and a global positioning system. As shown in FIG. 1 , when the display screen 110 of the vehicle control computer is playing a movie, the screen 130 of the GPS 120 displays the navigation status of a vehicle logo 140 . However, because the hand-held navigation device cannot cooperate with the speed measuring line and the azimuth, the positioning accuracy is lower than that of the car navigation device, and the installed power line, frame, etc. also damage the overall beauty of the car interior, not to mention. The chance of theft is greatly increased.

In addition, although the general car navigation device can overcome the shortcomings of the handheld navigation device, but because the car control computer and the car navigation device share the same display screen, it can only be used by the car owner to choose to control the car device or perform navigation at the same time. One of them, however, will cause trouble when the passenger desires to watch the film and the car owner must perform navigation again. It can be seen that there is still room for improvement in the functions of the known vehicle control computer and the global positioning system.

Contents of the invention

The purpose of the present invention is to provide a vehicle navigation control system, so that the vehicle control system and the navigation device can be integrated.

Another object of the present invention is to provide a car navigation control system, so that the car navigation control system and the navigation device can be integrated to provide multiple information on a single screen.

According to a characteristic of the present invention, the present invention proposes a vehicle navigation control system, which includes a communication bus, a navigation device, a display device and a vehicle control computer. The navigation device is connected to the communication bus to provide at least one navigation information; the display device is used to simultaneously display a human-machine interface (HMI) and at least one prompt message; the vehicle control computer is connected to the communication bus and the display device, The vehicle control computer controls at least one vehicle device of a vehicle through the man-machine interface displayed on the display device, and the vehicle control computer retrieves the at least one navigation information of the navigation device through the communication bus, And the at least one navigation information is correspondingly converted into the at least one prompt information and then output to the display device for simultaneous display.

According to another feature of the present invention, the present invention proposes a vehicle navigation control method, which simultaneously displays at least one piece of navigation information generated by a navigation device on a display device having a man-machine interface image of a vehicle control computer, the The navigation device is connected to the vehicle control computer via a communication bus. The navigation device has a global positioning device and an electronic map database. The electronic map database has multiple road map data and multiple facility information. These road map data include A plurality of road names, starting point coordinates and end point coordinates corresponding thereto, the plurality of facility information includes speeding camera position coordinates and corresponding description information, road position coordinates and corresponding speed limit information, and scenic spot position coordinates and corresponding description information, the The method includes: (A) the global positioning device generates a global positioning coordinate data of the vehicle; (B) the navigation device retrieves the plurality of road map data and facility information in the electronic map database according to the global positioning coordinate data to generate The at least one navigation information, the at least one navigation information includes the global positioning coordinate data generated by the global positioning device, and at least one specific facility information at a specific distance from the global positioning coordinate data, the at least one specific facility information refers to the information generated by the global positioning device The navigation device searches the plurality of facility information in the electronic map database to find out the facility information within the specific distance from the global positioning coordinate data; (C) the navigation device transmits the at least one navigation information via the communication bus to The vehicle control computer converts the at least one navigation information to generate at least one prompt information; (D) the vehicle control computer simultaneously displays the man-machine interface image and the at least one prompt information on the display device .

According to another feature of the present invention, the present invention proposes a vehicle navigation control method, which displays at least one piece of navigation information generated by a navigation device on a display device of a vehicle control computer, and the navigation device communicates via a communication bus Connected to the vehicle control computer, the navigation device has a global positioning device and an electronic map database, the electronic map database has a plurality of road map data and a plurality of facility information, and these road map data include a plurality of road names, and Corresponding starting point coordinates and end point coordinates respectively, the plurality of facilities information includes speeding camera position coordinates and corresponding description information, road position coordinates and corresponding speed limit information, and scenic spot position coordinates and corresponding description information, the method includes: (A) Receive a plurality of satellite signals by the global positioning device to generate a global positioning coordinate data of the vehicle; (B) input a target position, and search the multiple electronic map databases according to the target position and the global positioning coordinate data Road map data, and then calculate an optimal guidance route, wherein, the optimal guidance route includes a plurality of turning point coordinates and a plurality of guidance information corresponding to the plurality of turning points; (C) transmit via the communication bus At least one piece of navigation information is sent to the vehicle control computer to generate at least one prompt message, wherein the at least one piece of navigation information includes the guidance information corresponding to the next turning point, and the at least one prompt information further includes the guidance information corresponding to the next turning point Guide information; (D) displaying the at least one prompt information on the display device.

Description of drawings

FIG. 1 is a schematic diagram showing the use of a known vehicle control computer and a global positioning system.

Fig. 2 is a block diagram of the vehicle navigation control system of the present invention.

Fig. 3 is a flow chart of a vehicle navigation control method according to the present invention.

Fig. 4 is a schematic diagram of a vehicle navigation control method in use according to the present invention.

FIG. 5 is a flow chart of another embodiment of a vehicle navigation control method of the present invention.

Fig. 6 is a schematic diagram of the data structure of the optimal guidance path in the present invention.

FIG. 7 is a schematic diagram of a vehicle navigation control method in use according to the present invention.

Explanation of symbols in the figure

110 display screen 120 global positioning system

130 screen 140 vehicle logo

210 Communication bus 220 Navigation device

230 Display device 240 Vehicle control computer

232 Man-machine interface 244 Air-conditioning equipment

242 Multimedia player 243 Radio receiver

245 Headlight controller 246 Sunroof controller

222 global positioning device 224 electronic map database

226 Navigation module

420, 430, 440, 450 Facility Information

710 label 410 label

Detailed ways

2 is a block diagram of the vehicle navigation control system of the present invention, which includes a communication bus 210 , a navigation device 220 , a display device 230 , and a vehicle control computer 240 .

The communication bus 210 was a Car Area Network (CAN) bus at that time. A navigation device 220 is connected to the communication bus 210 to provide at least one navigation information N1, N2, N3 . . . The display device 230 is used to simultaneously display a Human Machine Interface (Human Machine Interface, HMI) 232 and at least one prompt message P1, P2, P3 . . .

The vehicle control computer 240 is connected to the communication bus 210 and the display device 230, and the vehicle control computer 240 controls at least one vehicle device of a vehicle through the human-machine interface (HMI) 232 displayed on the display device 230 . The at least one vehicle device is an air conditioner 244 , a multimedia player 242 , a radio 243 , a headlight controller 245 , and a sunroof controller 246 of the vehicle.

The vehicle control computer 240 retrieves the at least one navigation information (N1, N2, N3...) of the navigation device 220 through the communication bus 210, and sends the at least one navigation information (N1, N2, N3. ..) is correspondingly converted into the at least one prompt message (P1, P2, P3...) and then output to the display device 230 for simultaneous display.

The navigation device 220 includes a global positioning device 222 , an electronic map database 224 and a navigation module 226 .

The global positioning device 222 receives a plurality of satellite signals to generate a global positioning coordinate data Pc of the vehicle. The electronic map database 224 stores a plurality of road map data and a plurality of facility information (Point of Interest, POI). Wherein, the plurality of road map data include a plurality of road names, starting point coordinates and end point coordinates respectively corresponding to them. The plurality of facility information (POI) includes speed camera location coordinates and corresponding description information, road location coordinates and corresponding speed limit information, and scenic spot location coordinates and corresponding description information.

In other embodiments, the navigation device 220 can perform precise positioning comparison (matching) according to the received multiple satellite data and the multiple road map data in the electronic map database 224 to generate the global positioning coordinate data Pc , to increase the accuracy of the navigation device 220 .

The at least one navigation information (N1, N2, N3...) of the navigation device 220 includes the global positioning coordinate data Pc generated by the global positioning device 222, and at least a specific distance R from the global positioning coordinate data Pc A specific facility information (POI). The at least one specific facility information (POI) means that the navigation device 220 searches the plurality of facility information in the electronic map database 224 to find facility information within the specific distance R from the global positioning coordinate data Pc.

The navigation module 226 searches the plurality of road map data in the electronic map database 224 according to a target position Pd and the global positioning coordinate data Pc, and then calculates an optimal guidance route. Wherein, the optimal guidance route includes a plurality of turning point coordinates and a plurality of guiding information respectively corresponding to the plurality of turning points. The guidance information includes a turning instruction information, a turning road name and a distance between the global positioning coordinate data Pc and the turning point.

Due to changes in road conditions, the forward route of the vehicle does not necessarily follow the optimal guidance route. That is, due to driving conditions, the optimal guidance route often needs to be recalculated. Therefore, there is no need to transmit the coordinates of the multiple turning points included in the optimal guidance route and the multiple guiding information corresponding to the multiple turning points to the vehicle control computer 240 . In this embodiment, the turning point closest to the global positioning coordinate data Pc is defined as the next turning point, and the coordinates of the next turning point and the guidance information corresponding to the next turning point are transmitted to the vehicle control computer 240. Therefore, the at least one piece of navigation information ( N1 , N2 , N3 . . . ) further includes guidance information corresponding to the next turning point. And at least one prompt information ( P1 , P2 , P3 . . . ) further includes guidance information corresponding to the next turning point.

The vehicle control computer 240 converts the at least one navigation information (N1, N2, N3...) into the at least one prompt information (P1, P2, P3...) and then outputs it to the display device 230 for simultaneous show. The display device 230 superimposes the at least one prompt message ( P1 , P2 , P3 . . . ) on the human-machine interface (HMI) 232 image. In other embodiments, the display device 230 displays the at least one prompt message (P1, P2, P3 . . . ) on the display device 230 in an On-Screen Display (OSD).

Fig. 3 is a flow chart of a vehicle navigation control method according to the present invention. The method simultaneously displays at least one piece of navigation information (N1, N2, N3 . . . ) generated by a navigation device 220 on a display device 230 having a human-machine interface (HMI) 232 image of a vehicle control computer 240 . The navigation device 220 is connected to the vehicle control computer 240 via a communication bus 210 . The communication bus 210 is a car area network (Car Area Network, CAN) bus. The navigation device 220 has a global positioning device 222 and an electronic map database 224, and the electronic map database 224 has a plurality of road map data and a plurality of facility information. These road map data include a plurality of road names and their corresponding starting point coordinates and ending point coordinates. The plurality of facility information (Point of Interest, POI) includes speed camera location coordinates and corresponding description information, road location coordinates and corresponding speed limit information, and scenic spot location coordinates and corresponding description information.

First, in step (A), the global positioning device 222 receives a plurality of satellite signals to generate a global positioning coordinate data Pc of the vehicle. In order to increase the accuracy of the global positioning coordinate data Pc, the step (A) further includes a sub-step (A1). In step (A1), the navigation device 220 performs road comparison according to the output of the global positioning device 222 and the electronic map database 224 to generate the global positioning coordinate data Pc.

In step (B), the navigation device 220 retrieves the plurality of road map data and facility information in the electronic map database 224 according to the global positioning coordinate data Pc to generate the at least one navigation information (N1, N2, N3 .. .). The at least one navigation information (N1, N2, N3...) includes the global positioning coordinate data Pc generated by the global positioning device 222, and at least one specific facility information ( POIs). The at least one specific facility information means that the navigation device 220 searches the plurality of facility information in the electronic map database 224 to find the facility information within the specific distance R from the global positioning coordinate data Pc.

In step (C), the navigation device 220 transmits the at least one navigation information (N1, N2, N3...) to the vehicle control computer via the communication bus, and the vehicle control computer converts the at least one navigation information ( N1, N2, N3...) to generate at least one prompt message (P1, P2, P3...).

In step (D), the vehicle control computer 240 simultaneously displays the human-machine interface (HMI) image and the at least one prompt message (P1, P2, P3 . . . ) on the display device 230 . The display device 230 superimposes the at least one prompt message ( P1 , P2 , P3 . . . ) on the human-machine interface (HMI) 232 image.

Fig. 4 is a schematic diagram of a vehicle navigation control method in use according to the present invention. As shown in FIG. 4 , the display device 230 plays a video through the human-machine interface (HMI) 232 . Reference numeral 410 represents the vehicle position. The navigation device 220 searches the plurality of facility information (420, 430, 440, 450) in the electronic map database 224 to find out the facility information (420, 430) within the specific distance R from the global positioning coordinate data Pc . And the vehicle control computer 240 converts the at least one navigation information (N1, N2, N3 . )232 image above.

Fig. 5 is a flow chart of another embodiment of a vehicle navigation control method of the present invention. The method displays at least one navigation information (N1, N2, N3 . . . ) generated by a navigation device 220 on a display device 230 of a vehicle control computer 240 . The navigation device 220 is connected to the vehicle control computer via a communication bus 210 . The communication bus 210 is a car area network (Car Area Network, CAN) bus.

The navigation device 220 has a global positioning device 222 and an electronic map database 224 . The electronic map database 224 has a plurality of road map data and a plurality of facility information. These road map data include a plurality of road names, corresponding starting point coordinates and end point coordinates, and the multiple facility information (POI) includes speeding camera position coordinates and corresponding description information, road position coordinates and corresponding speed limit information, and The location coordinates of the attractions and their corresponding description information.

First, in step (A), the global positioning device 222 receives a plurality of satellite signals to generate a global positioning coordinate data Pc of the vehicle. In order to increase the accuracy of the global positioning coordinate data Pc, the step (A) further includes a sub-step (A1). In step (A1), the navigation device 220 performs road comparison according to the output of the global positioning device 222 and the electronic map database 224 to generate the global positioning coordinate data Pc.

In step (B), a target position Pd is input, and the navigation device 220 searches the plurality of road map data in the electronic map database 124 according to the target position Pd and the global positioning coordinate data Pc, and then calculates an optimal guide. lead path. Fig. 6 is a schematic diagram of the data structure of the optimal guidance path of the present invention. As shown in FIG. 6 , the optimal guiding path is composed of turning points 1˜N (TP1˜TPN), and the turning points 1˜N (TP1˜TPN) can be stored in an array. Only the data structure of turning point 1 (TP1) is shown in FIG. 6 . That is, the optimal guidance route includes a plurality of turning point coordinates and a plurality of guiding information respectively corresponding to the plurality of turning points. The guidance information includes a turning instruction information, a turning road name and a distance between the global positioning coordinate data Pc and the turning point.

Due to changes in road conditions, the forward route of the vehicle does not necessarily follow the optimal guidance route. That is, due to driving conditions, the optimal guidance route often needs to be recalculated. Therefore, there is no need to transmit the coordinates of the multiple turning points included in the optimal guidance route and the multiple guiding information corresponding to the multiple turning points to the vehicle control computer 240 . In this embodiment, the turning point closest to the global positioning coordinate data Pc is defined as the next turning point, and the coordinates of the next turning point and the guidance information corresponding to the next turning point are transmitted to the vehicle control computer 240. Therefore, the at least one piece of navigation information ( N1 , N2 , N3 . . . ) includes guidance information corresponding to the next turning point. And at least one prompt information ( P1 , P2 , P3 . . . ) includes guidance information corresponding to the next turning point.

In step (C), at least one navigation message (N1, N2, N3...) is sent to the vehicle control computer 240 via the communication bus 210 to generate at least one prompt message (P1, P2, P3.. .), wherein, the at least one navigation information (N1, N2, N3...) includes the guidance information corresponding to the next turning point, and the at least one prompt information (P1, P2, P3...) further includes the following Guidance information corresponding to a turning point.

In step (D), the at least one prompt message is displayed on the display device 130 . The display device 230 superimposes the at least one prompt message ( P1 , P2 , P3 . . . ) on the human-machine interface (HMI) image.

FIG. 7 is a schematic diagram of a vehicle navigation control method in use according to the present invention. As shown in FIG. 7 , the display device 230 plays a video through the human-machine interface (HMI) 232 . In FIG. 7, reference numeral 710 denotes the vehicle position. The navigation device 220 searches the plurality of road map data in the electronic map database 224 according to the target position Pd and the global positioning coordinate data Pc, and then calculates an optimal guidance route. The optimal guiding path is composed of turning points 1-N (TP1-TPN). The location of the vehicle is 300 meters away from the turning point 1 (TP1), and it is necessary to turn right at turning point 1, and the name of the turning road is Road112. And the vehicle control computer 240 converts the at least one navigation information (N1, N2, N3 . .

From the above description, it can be known that the present invention only needs to view videos and driving guidance information on one screen, instead of using two screens to browse driving guidance information and videos separately as in the known technology. This not only increases the convenience of use, but also prevents the driver from being distracted and affecting driving safety. It can better integrate vehicle control and navigation devices.

The above-mentioned embodiments are only examples for convenience of description, and the scope of rights claimed by the present invention should be based on the scope of the patent application, rather than limited to the above-mentioned embodiments.

Claims (23)

1. Vehicular navigation control system comprises:

One communication bus;

One guider is connected to this communication bus, so that at least one navigation information to be provided;

One display device is in order to show a man-machine interface and at least one information simultaneously; And

One automobile-used controlling computer, be connected to this communication bus and this display device, this automobile-used controlling computer by shown this man-machine interface of this display device controlling at least one vehicular equipment of a vehicle, this automobile-used controlling computer and by this communication bus with this at least one navigation information of capturing this guider, and should at least one navigation information corresponding conversion become this at least one information and then export the in addition demonstration simultaneously of this display device to.

2. Vehicular navigation control system as claimed in claim 1, wherein, this guider comprises:

One global location device is in order to produce a global location coordinate data of this vehicle; And

One electronic map database, this electronic map database store a plurality of road-map data and a plurality of facilities information.

3. Vehicular navigation control system as claimed in claim 2, wherein, these a plurality of road-map data include a plurality of road names, distinguish corresponding starting point coordinate and terminal point coordinate with it.

4. Vehicular navigation control system as claimed in claim 2, wherein, a plurality of facilities informations include the corresponding descriptive information with it of overspeed photograph position coordinates, site of road coordinate speed-limiting messages corresponding with it, reach sight spot position coordinates descriptive information corresponding with it.

5. Vehicular navigation control system as claimed in claim 2, wherein, this at least one navigation information comprises this global location coordinate data of being produced by this global location device, and apart from least one specific facilities information of this global location coordinate data one specific range, this at least one specific facilities information refers to search this a plurality of facilities informations in this electronic map database to find out and this global location coordinate data facilities information in this specific range apart by this guider.

6. Vehicular navigation control system as claimed in claim 2, wherein, this guider more comprises a navigation module, this navigation module according to a target location, and this global location coordinate data searching these a plurality of road-map data of this electronic map database, and then calculate an optimum waveguide traction path.

7. Vehicular navigation control system as claimed in claim 6, wherein, this optimum waveguide traction path comprises a plurality of turning point coordinates and a plurality of guidance information corresponding respectively with these a plurality of turning points.

8. Vehicular navigation control system as claimed in claim 7, wherein, this guidance information comprises one and turns to indication information, to turn to the distance of road name and this global location coordinate data and this turning point.

9. Vehicular navigation control system as claimed in claim 7, wherein, at least one navigation information also comprises the pairing guidance information of next turning point, and at least one information also includes the pairing guidance information of next turning point.

10. Vehicular navigation control system as claimed in claim 1, wherein, at least one vehicular equipment is the air-conditioning equipment of this vehicle.

11. Vehicular navigation control system as claimed in claim 1, wherein, at least one vehicular equipment is the multi-media player of this vehicle.

12. Vehicular navigation control system as claimed in claim 1, wherein, this communication bus is automobile-used LAN bus.

13. Vehicular navigation control system as claimed in claim 1, wherein, this display device is stacked and placed at least one information on this man-machine interface image.

14. Vehicular navigation control system as claimed in claim 1, wherein, this display device is shown at least one information on this display device with screen display.

15. Vehicular navigation control system as claimed in claim 2, wherein, this guider is also precisely located comparison according to these a plurality of road-map data in this global location coordinate data and this electronic map database, to produce this global location coordinate data of this vehicle.

16. Vehicular navigation control method, its at least one navigation information that guider is produced is shown in an automobile-used controlling computer simultaneously to have on the display device of man-machine interface (HMI) image, this guider is connected to this automobile-used controlling computer via a communication bus, this guider has a global location device and an electronic map database, this electronic map database has a plurality of road-map data and a plurality of facilities information, and this method comprises:

(A) this global location device produces a global location coordinate data Pc of this vehicle;

(B) this guider according to these a plurality of road-map data and facilities information in this this electronic map database of global location coordinate DAQ to produce this at least one navigation information, at least one navigation information comprises this global location coordinate data that is produced by this global location device, and apart from least one specific facilities information of this global location coordinate data one specific range, this at least one specific facilities information refers to search this a plurality of facilities informations in this electronic map database to find out and this global location coordinate data facilities information in this specific range apart by this guider;

(C) this guider transmits this at least one navigation information to this automobile-used controlling computer via this communication bus, and this automobile-used this at least one navigation information of controlling computer conversion is to produce at least one information; And

(D) this automobile-used controlling computer shows that simultaneously this man-machine interface image and this at least one information are on this display device.

17. method as claimed in claim 16, wherein, this step (A) more comprises:

(A1) guider 120 carries out the road comparison according to output and this electronic map database of this global location device, to produce this global location coordinate data.

18. method as claimed in claim 16, wherein, this display device should at least one information be stacked and placed on this man-machine interface image.

19. method as claimed in claim 16, wherein, this communication bus is automobile-used LAN bus.

20. Vehicular navigation control method, its at least one navigation information that guider is produced is shown on the display device of an automobile-used controlling computer, this guider is connected to this automobile-used controlling computer via a communication bus, this guider has a global location device and an electronic map database, this electronic map database has a plurality of road-map data and a plurality of facilities information, and this method comprises:

(A) receive a plurality of satellite signals by this global location device, to produce a global location coordinate data of this vehicle;

(B) input one target location, according to this target location, this global location coordinate data to search these a plurality of road-map data of this electronic map database, and then calculate an optimum waveguide traction path, wherein, this optimum waveguide traction path comprises a plurality of turning point coordinates and a plurality of guidance information corresponding respectively with these a plurality of turning points;

(C) transmit at least one navigation information to this automobile-used controlling computer via this communication bus, to produce at least one information, wherein, this at least one navigation information comprises the pairing guidance information of next turning point, and this at least one information more includes the pairing guidance information of next turning point; And

(D) show that this at least one information is on this display device.

21. method as claimed in claim 20, wherein, step (A) also comprises:

(A1) guider carries out the road comparison according to output and this electronic map database of this global location device, to produce this global location coordinate data.

22. method as claimed in claim 20, wherein, this display device is stacked and placed at least one information on this man-machine interface image.

23. method as claimed in claim 20, wherein, this communication bus is automobile-used LAN bus.

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