JP2006242888A - Navigation system and program for controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow a user to understand indication content of the traffic signal or traveling positions of other vehicles in real time by seeing map indication of a navigation system. <P>SOLUTION: When a vehicle, mounted with a vehicle navigation system 1, reaches within a predetermined distance before a guiding intersection, a control circuit 19 makes a radio communications circuit 10 prepare for receiving the traffic signal data and the data of other vehicles. When the traffic signal data and data of the other vehicles are received, the data are reflected to a 3D (three-dimensional) intersection enlarged view. Alternatively, when the traffic signal data and the data of the other vehicles cannot be received, the 3D intersection enlarged view is displayed with a different color scheme from that, when the data are received. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

    The present invention relates to a navigation device that displays a map around a host vehicle and a program for controlling the navigation device.

    Conventionally, navigation devices that display a map around the host vehicle have been widely used.

  It is convenient for the user if the map display of such a navigation device can be used to understand the instruction content of the traffic light and the traveling position of the other vehicle in real time.

  In view of the above-mentioned points, the first object of the present invention is to enable a user to grasp the content of an instruction of a traffic light or the traveling position of another vehicle in real time by looking at a map display of a navigation device.

  In recent years, navigation apparatuses have come to use a three-dimensional view of an approaching intersection and its surroundings as a detailed view of an intersection or the like displayed when guiding a guidance route to a destination. However, the driver may be more conscious of a real and three-dimensional screen, and as a result, there is a possibility that the grasp of the traffic situation during driving may be neglected.

  In view of the above points, the second object of the present invention is to enable the user to grasp the traffic situation in real time by viewing the three-dimensional display of the navigation device.

  A second feature of the present invention for achieving the first object described above is that the navigation device includes a wireless communication circuit, an image display device that displays a map around the host vehicle, and a control circuit. The control circuit acquires the traffic signal data indicating the current instruction content of the traffic signal in the geographical area included in the map displayed by the image display device via the wireless communication circuit, and the instruction content indicated by the acquired traffic signal data is It is to reflect on the map which an image display apparatus displays now.

  In this way, the navigation device reflects the instruction content indicated by the acquired current traffic signal data on the current display map, so that the user can see the map content of the navigation device and grasp the content of the traffic signal instruction in real time. Can do.

  In addition, the present in “Show current instruction contents of traffic lights” includes the time that is normally required for the host vehicle to travel from the current position to the traffic lights where the instruction contents are displayed. .

  In addition, the image display device is configured to display a road that is about to pass and a three-dimensional image around the road as a map around the host vehicle, and the control circuit further indicates the instruction content indicated by the acquired traffic signal data. May be reflected in the image of the traffic light in the stereoscopic image. In this way, the user can grasp the traffic situation in real time by looking at the stereoscopic image.

  In addition, the control circuit of the navigation device may switch the color scheme of the map displayed by the image display device depending on whether or not the traffic light data can be acquired via the communication circuit. In this way, the user can easily know whether or not the real-time information of the current traffic light can be grasped by looking at the display map.

  According to a second aspect of the present invention for achieving the first object, the navigation device includes a wireless communication circuit, an image display device for displaying a map around the host vehicle, and a control circuit. The circuit acquires other vehicle data indicating the current position of the other vehicle in the geographical area included in the map displayed by the image display device via the wireless communication circuit, and the image display device currently displays the map. An image indicating the vehicle is included in a portion corresponding to the position of another vehicle indicated by the acquired other vehicle data.

  In this way, the navigation device reflects the vehicle position indicated by the acquired current other vehicle data on the current display map, so that the user sees the map display of the navigation device and grasps the position of the other vehicle in real time. be able to. In addition, the present in “indicating the current position of the other vehicle” includes a time that is usually required for the host vehicle to travel from the current position to the other vehicle that is displayed.

  The image display device may be configured to display a road that is about to pass and a stereoscopic image around the road as a map around the host vehicle. In this way, the user can grasp the traffic situation in real time by looking at the stereoscopic image.

  In addition, the control device of the navigation device is the position of the other vehicle indicated by the other vehicle data acquired by the other vehicle data acquisition means in the stereoscopic image displayed by the image display device, and in a portion that is behind the structure. , An image transparently showing the vehicle may be included. In this way, the user sees an image of the vehicle that is transparently displayed at that position in the stereoscopic image, even in the presence of the vehicle hidden behind the structure when viewed from the user. Therefore, it can be easily grasped.

  Further, when the control circuit of the navigation device guides the guidance route to the destination, the guidance of the guidance route and the display of the three-dimensional image by the image display device are displayed. A signal requesting the position data of the vehicle is transmitted to the communication device using a wireless communication circuit, and the position data signal of the vehicle transmitted from another vehicle as a response to the request signal is transmitted via the wireless communication circuit. You may come to get.

  The control circuit of the navigation device may switch the color scheme of the map displayed by the image display device depending on whether or not other vehicle data can be acquired via the communication circuit. In this way, the user can easily know whether real-time information of other vehicles can be grasped by viewing the display map.

  According to a third aspect of the present invention for achieving the second object, the navigation device includes a wireless communication circuit, an image display device for displaying a map around the host vehicle, and a control circuit. The circuit acquires the real-time traffic situation data indicating the current traffic situation in the geographical area included in the stereoscopic image displayed by the image display device via the wireless communication circuit, and the acquired real-time traffic situation data is displayed as the image display device. Is reflected in the stereoscopic image displayed.

  In this way, the navigation device reflects the traffic status indicated by the acquired current real-time traffic status data on the current display map, so that the user can see the traffic status in real time by looking at the map display of the navigation device. Can do. In addition, the present in the “current traffic situation” includes a time away from the present, which is about the time normally required for the host vehicle to travel several hundred meters.

  The control circuit of the navigation device may switch the color scheme of the map displayed by the image display device depending on whether or not real-time traffic condition data can be acquired via the communication circuit. In this way, the user can easily know whether or not the current traffic situation can be grasped by looking at the display map.

  Moreover, these 1st-3rd invention can be grasped | ascertained also as a program for controlling a navigation apparatus.

  Hereinafter, an embodiment of the present invention will be described. FIG. 1 shows a hardware configuration of a vehicle navigation apparatus 1 according to this embodiment. The vehicle navigation device 1 includes a wireless communication circuit 10, a position detector 11, an operation switch group 12, an image display device 13, a speaker 14, a RAM 16, a ROM 17, an external storage medium 18, and a control circuit 19.

  The position detector 11 includes a well-known sensor (not shown) such as a geomagnetic sensor, a gyroscope, a vehicle speed sensor, and a GPS receiver. The current position and direction of the vehicle based on the characteristics of each of these sensors. Is output to the control circuit 19.

  The operation switch group 12 includes a plurality of mechanical switches provided in the vehicle navigation device 1 and an input device such as a touch panel provided so as to overlap the display surface of the image display device 13. A signal based on the touch is output to the control circuit 19.

  The wireless communication circuit 10 performs processing according to a predetermined wireless communication protocol (eg, DSRC, wireless LAN, etc.) such as amplification, frequency conversion, demodulation, A / D conversion, etc., on a signal received by an antenna (not shown) The result is output to the control circuit 19. Further, the wireless communication circuit 10 performs processing according to a predetermined wireless communication protocol, such as D / A conversion, modulation, frequency conversion, amplification, etc., on the data input from the control circuit 19, and outputs the resulting signal as described above. Output to the antenna.

  More specifically, the wireless communication circuit 10 receives a wireless signal including traffic signal data, and outputs the traffic signal data included in the received signal to the control circuit 19. The traffic signal data is data indicating the current instruction content (specifically, red, blue, yellow) of a traffic signal installed at an intersection or the like. As shown in FIG. 2, the signal data is wirelessly transmitted via the antenna 4 by the wireless transmitter 3 connected to the signal device 2. The wireless transmitter 3 detects the current instruction content of the traffic light 2, includes the detected content and an identification number uniquely identifying the traffic light 2 in the traffic signal data, and immediately outputs the traffic signal data to the antenna 4. Realize wireless transmission. In addition, the wireless transmitter 3 may include data indicating the direction of the traveling direction of the vehicle to which the signal is issued, that is, the commanded direction data, in the signal data.

  The wireless communication circuit 10 performs vehicle-to-vehicle communication with a wireless communication device mounted on another vehicle. When a wireless communication device of another vehicle receives a request for vehicle data such as position data, vehicle speed data, travel direction data, and brake amount data from another wireless communication device, a current position sensor ( For example, position data, vehicle speed data, traveling direction data, and brake amount data are created based on data detected by a GPS receiver, a vehicle speed sensor, a traveling direction sensor (for example, a geomagnetic sensor), a brake amount sensor, and the like. It is designed to transmit as vehicle data. The wireless communication circuit 10 wirelessly transmits a request for vehicle data to the wireless communication device of such another vehicle, receives a wireless signal including the other vehicle data transmitted from the wireless communication device as a response, and receives the wireless signal. Other vehicle data in the signal is output to the control circuit 19.

  The wireless communication circuit 10 has two systems of circuits, a circuit for receiving a signal from a traffic light and a circuit for inter-vehicle communication.

  The image display device 13 displays a video based on the video signal output from the control circuit 19 to the user. Examples of the display image include a map around the current location, a 3D intersection enlarged view, and the like. The 3D intersection enlarged view is a detailed map that three-dimensionally represents the intersection and its surrounding roads, structures, traffic lights, and the like.

  The external storage medium 18 is a non-volatile storage medium such as an HDD, and stores a program read and executed by the control circuit 19, map data for route guidance, and the like.

  The map data includes road data and facility data including the position and type of road pieces (links) and intersections (nodes), connection relationship information between intersections and road pieces, and the like. The facility data has a plurality of entries for each facility, and each entry has data indicating name information, location information, facility type information, and the like of the target facility. Also, the map data is a correspondence table indicating each identification number of a plurality of traffic lights on the map, and a traffic signal corresponding to the identification number gives an instruction to a vehicle traveling in which direction on which road. (Hereinafter referred to as a traffic light correspondence table).

  A control circuit (corresponding to a computer) 19 executes a program for the operation of the vehicle navigation apparatus 1 read from the ROM 17 and the external storage medium 18, and in executing the program, the RAM 16, the ROM 17, and the external storage medium 18. The information is read from the RAM 16 and the information is written to the RAM 16 and the external storage medium 18, and signals are exchanged with the position detector 11, the operation switch group 12, the image display device 13, and the speaker 14.

  Specific processing performed by the control circuit 19 executing the program includes current position specifying processing, guidance route search processing, route guidance processing, and the like.

  The current position specifying process is a process for specifying the current position and traveling direction of the vehicle based on a signal from the position detector 11 using a known technique such as map matching.

  The guidance route search process is a process of receiving an input of a destination by the user from the operation switch group 12 and calculating an optimum guidance route from the current position to the destination.

  In the route guidance process, map data is read from the external storage medium 18 and an image in which the calculated guidance route, destination, waypoint, current position, etc. are overlaid on the map indicated by this map data is output to the image display device 13. When the vehicle reaches a predetermined distance (for example, 300 meters) before the guidance intersection, a guidance voice signal instructing a right turn, a left turn, etc. is output to the speaker 14, and the guidance intersection to be entered Show detailed map of. Here, the guidance intersection refers to an intersection that travels along a guidance route such as an intersection that turns right or left along the guidance route or an intersection that goes straight from a main road to a non-main road along the guidance route. The detailed map is a 3D intersection enlarged view. The route guidance process is realized by the control circuit 19 executing the route guidance program 90 in the external storage medium 18.

  Further, the control circuit 19 repeatedly executes the signal instruction content display program 100 and the other vehicle display program 200 shown as flowcharts in FIGS. 3 and 4 in parallel. Hereinafter, the operation of the control circuit 19 that executes the signal instruction content display program 100 and the other vehicle display program 200 when the vehicle on which the vehicle navigation device 1 is mounted is approaching the guidance intersection will be described.

  In the execution of the signal instruction content display program 100, the control circuit 19 determines whether or not the host vehicle is executing the route guidance process in step 110, and if it is being executed, subsequently executes step 120. If not being executed, the processing of step 110 is repeated. In step 120, it is determined whether or not the route guidance process has started displaying the 3D detailed map. If it has been started, step 130 is executed. If it has not been started, step 110 is executed. By these steps 110 and 120, the control circuit 19 waits for the condition that it is performing the route guidance process and starts the 3D detailed map display, and when this condition is satisfied, the control circuit 19 executes the execution in step 130. Move to.

  In step 130, the operation of the circuit in the wireless communication circuit 10 that receives a signal from the traffic light is started. Subsequently, in step 140, if the signal data transmitted from the wireless transmitter 3 is output from the wireless communication circuit 10 to the control circuit 19, it is determined that the signal data has been received and the signal data has been received. If the traffic signal data is not output from the wireless communication circuit 10 to the control circuit 19, step 160 is subsequently executed.

  In step 150, the instruction content of the traffic signal data acquired in step 140 is reflected in the three-dimensional figure of the traffic signal in the enlarged 3D intersection currently displayed by the image display device 13. For example, if the instruction content of the acquired traffic signal data is red, the portion corresponding to the red light in the traffic light three-dimensional figure is emphasized by being painted with dark red, and the portions corresponding to the blue light and the yellow light are lightened. In addition, when the traffic signal data is received from each of the wireless transmitters attached to the plurality of traffic signals in Step 140, the traffic signal for the traffic signal that instructs the vehicle traveling in the same direction as the current traveling direction of the host vehicle. The data is preferentially reflected in the three-dimensional figure of the traffic light.

  Which of the traffic signals (hereinafter referred to as display target traffic signals) for instructing a vehicle traveling in the same direction as the host vehicle is specified based on the identification number or the pointing direction data included in the traffic signal data. When specifying based on the identification number, the road and direction corresponding to each identification number are identified from the traffic signal correspondence table included in the map data, and they have an identification number that matches the traveling road and the traveling direction of the host vehicle. The signal data is specified, and the traffic signal related to the specified signal data is set as the display target traffic signal. In the case of specifying based on the indicated direction data, the signal data having the indicated direction data matching the traveling direction of the host vehicle is specified, and the traffic signal related to the specified signal data is set as the display target signal device.

  In step 150, the first color scheme is used as the color scheme of each component in the enlarged 3D intersection displayed on the image display device 13.

  In step 160 in which the traffic signal data has not been acquired, a second color scheme different from the first color scheme is used as the color scheme of each calibration element in the 3D intersection enlarged view displayed on the image display device 13. The second color scheme may use a color having a higher luminance than the first color scheme, or may use a darker color than the first color scheme. Further, as the three-dimensional figure of the traffic light in the enlarged 3D intersection, a figure in which the three indicator lamp portions are the same color, that is, a figure that cannot distinguish which indicator lamp is lit is used.

  After steps 150 and 160, in step 170, it is determined whether or not the display of the enlarged 3D intersection map is completed in the route guidance process. If the display is completed, the execution of the signal instruction content display program 100 for this time is terminated. If not completed, the execution of step 140 is continued.

  When the control circuit 19 executes such a signal instruction content display program 100, the vehicular navigation device 1 displays a traffic light at the time of displaying an enlarged view of an intersection 3D during guidance route guidance (see steps 110, 120, and 170). If data is received, based on the received traffic signal data, the current instruction content of the traffic signal corresponding to the traveling direction of the host vehicle is reflected in the current intersection 3D enlarged view display (see step 150), and the traffic signal data is received. Otherwise, the color scheme of the intersection 3D enlarged view and the display format of the traffic light figure are different from those when the traffic light data is received (see step 160).

  In addition, in the execution of the other vehicle display program 200, the control circuit 19 performs the same processing as step 110 of the signal instruction content display program 100 in step 210 and performs the same processing as step 120 in step 220. Waiting for the condition that the route guidance process is being performed and the 3D detailed map display is started is satisfied, and if this condition is satisfied, the process proceeds to step 230.

  In step 230, the operation of the circuit for performing vehicle-to-vehicle communication in the wireless communication circuit 10 is started, and the wireless communication circuit 10 is transmitted with a request signal for vehicle data. Subsequently, in step 240, if the other vehicle data transmitted as a response to the request signal from the communication device of the other vehicle is output from the wireless communication circuit 10 to the control circuit 19, it is acquired and the other vehicle data is acquired. If it is determined that it has been received, step 250 is subsequently executed. If no other vehicle data is output from the wireless communication circuit 10 to the control circuit 19, step 260 is subsequently executed.

  In step 250, the contents of the other vehicle data acquired in step 240 are reflected in the 3D intersection enlarged view currently displayed on the image display device 13. Specifically, based on the vehicle position data, vehicle speed data, and travel direction data included in the other vehicle data, the vehicle is located at the position in the enlarged 3D intersection corresponding to the position data and corresponds to the vehicle speed data. A vehicle mark that moves in the direction corresponding to the traveling direction data at the moving speed is added. At this time, if the display position of the vehicle mark is a position hidden behind a structure such as a building in the 3D intersection enlarged view, the transparent display so that the vehicle mark can be seen through the building. Display building and vehicle marks in the format.

  In addition, if it is determined that the vehicle is about to enter the intersection at a dangerous speed based on the position data, vehicle speed data, travel direction data, and brake amount data included in the other vehicle data, You may make the image display apparatus 13 perform the highlight display of the said vehicle mark, such as blinking a vehicle mark. Further, a warning sound may be output to the speaker 14 in accordance with this highlighting. In step 250, the first color scheme described above is used as the color scheme of each component in the enlarged 3D intersection displayed on the image display device 13.

  In step 260 in which no other vehicle data has been acquired, the second color scheme described above is used as the color scheme of each calibration element in the enlarged 3D intersection displayed on the image display device 13. After Steps 250 and 260, in Step 270, it is determined whether or not the display of the 3D intersection enlarged view is finished in the route guidance process. If finished, the operation of the wireless communication circuit 10 is stopped in Step 280 and this time. The execution of the other vehicle display program 200 is terminated, and if it is not terminated, step 240 is subsequently performed.

  When the control circuit 19 executes the other vehicle display program 200, the vehicle navigation apparatus 1 displays the other vehicle at the time of displaying a 3D intersection enlarged view during guidance route guidance (see steps 210, 220, and 270). If the data is received, the vehicle in the corresponding moving speed and moving direction is indicated at the position in the enlarged 3D intersection corresponding to the current position, speed, traveling direction, etc. of the other vehicle indicated by the received other vehicle data. If the image is immediately included (see step 250) and no other vehicle data is received, the color scheme of the intersection 3D enlarged view and the display format of the traffic light figure are different from those when the other vehicle data is received ( (See step 260).

  When a vehicle equipped with the vehicle navigation device 1 operating as described above comes within a predetermined distance before the guidance intersection, the control circuit 19 prepares the wireless communication circuit 10 to receive traffic signal data and other vehicle data. (Refer to Steps 130 and 230) When the traffic signal data and other vehicle data are received, the data is reflected in the enlarged 3D intersection (see Steps 150 and 250).

  FIG. 5 shows an example of a 3D intersection enlarged view reflecting traffic signal data and other vehicle data. In this figure, the road 31 on which the host vehicle is currently traveling, the current position mark 32 of the host vehicle on the road 31, the traveling direction mark 33 along the guidance route, and the traffic signal 34 regarding the intersection to be passed from now on. The figures such as the buildings 35 to 37 around the intersection and the other roads 38 to 40 connected to the intersection are displayed three-dimensionally from a diagonal perspective. A part of the roads 41, 42, and 43 is in the shade of the buildings 35 and 38, but the roads 41, 42, and 43 can be seen through the buildings 35 and 38. By using various display formats, this part can be seen by the user.

  In this 3D intersection enlarged view, only the red indicator lamp portion 34a of the traffic light figure 34 is highlighted by being painted in red. In this way, the instruction content of the traffic light data is reflected in the 3D intersection enlarged view. In addition, moving vehicle marks 41 to 43 are transparently displayed in portions corresponding to the shadows of the building figures 35 and 37. In this way, the contents of the other vehicle data are reflected in the 3D intersection enlarged view.

  Further, while neither of the traffic signal data nor the other vehicle data can be received, the 3D intersection enlarged view is displayed with a color scheme different from the case where both can be received (see steps 160 and 260). FIG. 6 shows an example of an enlarged view of the 3D intersection when the traffic signal data and other vehicle data cannot be received in the same format as FIG. In addition, the figure to which the same code | symbol was attached | subjected in FIG. 5 and FIG. 6 is a figure which shows the mutually same thing. In this figure, the indicator lamp portion is filled with a single color in the traffic light figure 34. Also, the overall color scheme is different from that in FIG.

  As described above, the vehicle navigation device 1 reflects the acquired current traffic signal data and the instruction content indicated by the other vehicle data in the current 3D intersection enlarged view, so that the user looks at the map display of the navigation device and Can be understood in real time.

  Further, the vehicle navigation device 1 switches the color scheme of the map displayed on the display device between when signal data or other vehicle data can be acquired via the wireless communication circuit 10 and when it cannot. Thus, the user can easily know whether or not the real time information of the traffic light and other vehicle data can be grasped by looking at the display map.

  In the above-described embodiment, the control circuit 19 functions as a traffic light data acquisition unit by executing steps 130 and 140 of the signal instruction content display program 100, and executes steps 230 and 240 of the other vehicle display program 200. By executing, it functions as other vehicle data acquisition means. Further, the control circuit 19 executes steps 130 and 140 of the signal instruction content display program 100 and steps 230 and 240 of the other vehicle display program 200, thereby functioning as a real-time traffic condition acquisition unit. Further, the control circuit 19 functions as route guidance means by executing the route guidance program 90. Moreover, the control circuit 19 functions as a display control means by executing steps 150 and 160 of the signal instruction content display program 100 and steps 250 and 260 of the other vehicle display program 200.

(Other embodiments)
In addition, the vehicle mark displayed on the 3D intersection enlarged view does not need to have the shape of the vehicle as illustrated in FIG. 5, and may be a simple point, for example.

  Moreover, in the said embodiment, although the navigation apparatus 1 for vehicles acquired the other vehicle data by vehicle-to-vehicle communication, it does not necessarily need to be like this. For example, a communication device of another vehicle transmits other vehicle data to a radio device fixed to a structure near an intersection such as a traffic light, and the wireless device transmits the received other vehicle data in a batch. The vehicle navigation apparatus 1 may receive other vehicle data transmitted by the wireless device. In addition, the traffic signal data and other vehicle data are transmitted from the traffic signal and the vehicle to one of base stations installed at a plurality of points so as to cover a wide area, and each base station receives the received data. Is transmitted to a server on a wide-area wired network, and the server transmits the received data to each base station in a lump. The base station wirelessly transmits the data, and the wirelessly transmitted data is used for vehicle navigation. The apparatus 1 may be configured to receive. That is, the vehicle navigation apparatus 1 may receive the traffic signal data and other vehicle data that are centrally managed via the server.

  Moreover, the map of the object which reflects traffic signal data and other vehicle data in real time is not restricted to a 3D intersection enlarged view. For example, it may be reflected only on the planar intersection enlarged view or only on the wide area map.

  In addition, the data to be reflected in the 3D intersection enlarged map in real time is not limited to other vehicle data and traffic light data, but may be real-time traffic condition data indicating the current traffic situation in the geographical area included in the 3D intersection enlarged map to be displayed. Anything can be used.

It is a hardware block diagram of the vehicle navigation apparatus 1 which concerns on embodiment of this invention. It is a figure which shows the radio transmitter 3 attached to the signal apparatus 2 and the signal apparatus 2. 3 is a flowchart of a signal instruction content display program 100 executed by a control circuit 19; 4 is a flowchart of another vehicle display program 200 executed by the control circuit 19; It is a figure which shows an example of 3D detailed drawing which the image display apparatus 13 displays at the time of reception possible. It is a figure which shows an example of 3D detailed drawing which the image display apparatus 13 displays when reception is impossible.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Vehicle navigation apparatus, 2 ... Traffic light, 3 ... Radio transmitter, 4 ... Antenna,
DESCRIPTION OF SYMBOLS 10 ... Wireless communication circuit, 11 ... Position detector, 12 ... Operation switch group,
13 ... Image display device, 14 ... Speaker, 16 ... RAM, 17 ... ROM,
18 ... External storage medium, 19 ... Control circuit, 30, 50 ... 3D intersection enlarged view,
31, 38, 39, 40 ... road, 32 ... current position mark, 33 ... traveling direction mark,
34 ... Traffic light figure, 34a ... Indicator light part, 35-37 ... Building figure,
41-43 ... vehicle mark, 90 ... route guidance program,
100 ... Signal instruction content display program, 200 ... Other vehicle display program.

Claims (13)

A wireless communication circuit;
An image display device for displaying a map around the host vehicle;
A control circuit,
The control circuit includes:
Via the wireless communication circuit, traffic light data acquisition means for acquiring traffic signal data indicating the current instruction content of the traffic light in a geographical area included in a map displayed by the image display device;
A navigation apparatus comprising: display control means for reflecting the instruction content indicated by the traffic light data acquired by the traffic light data acquisition means on the map currently displayed by the image display apparatus. The image display device displays, as a map around the host vehicle, a road that is about to pass and a stereoscopic image around the road,
The display control means reflects an instruction content indicated by the traffic light data acquired by the traffic light data acquisition means in an image of the traffic light in the stereoscopic image displayed by the image display device. The navigation device described. The display control means switches the color scheme of the map displayed by the image display device depending on whether the traffic light data acquisition means can acquire the traffic signal data or not. The navigation device described. A wireless communication circuit;
An image display device for displaying a map around the host vehicle;
A control circuit,
The control circuit includes:
Other vehicle data acquisition means for acquiring other vehicle data indicating the current position of the other vehicle in a geographical area included in the map displayed by the image display device via the wireless communication circuit;
Display control means for including an image indicating a vehicle in a portion corresponding to the position of another vehicle indicated by the other vehicle data acquired by the other vehicle data acquisition means in the map currently displayed by the image display device; A navigation device comprising: The navigation device according to claim 4, wherein the image display device displays a road that is about to pass and a stereoscopic image around the road as a map around the own vehicle. The display control means is a part of the stereoscopic image displayed by the image display device that is a position of another vehicle indicated by the other vehicle data acquired by the other vehicle data acquisition means and is behind the structure. The navigation apparatus according to claim 5, further comprising an image transparently showing the vehicle. The control circuit has route guidance means for guiding a guidance route to a destination,
The other vehicle data acquisition means requests the position data of the vehicle from the communication device of the other vehicle based on the fact that the route guidance means guides the guidance route and the image display device displays a stereoscopic image. A signal is transmitted using the wireless communication circuit, and a position data signal of the vehicle transmitted from another vehicle as a response to the request signal is acquired via the wireless communication circuit. Item 7. The navigation device according to Item 5 or 6. The display control means switches the color scheme of the map displayed by the image display device depending on whether or not the other vehicle data acquisition means can acquire the other vehicle data. 8. The navigation device according to any one of 7. A wireless communication circuit;
An image display device that displays a three-dimensional image of the road that is about to pass and the road;
A control circuit,
The control circuit includes:
Real-time traffic condition acquisition means for acquiring real-time traffic condition data indicating the current traffic condition in a geographical area included in the stereoscopic image displayed by the image display device via the wireless communication circuit;
A navigation apparatus comprising: display control means for reflecting the real-time traffic condition data acquired by the information acquisition means to the stereoscopic image displayed by the image display apparatus. The display control means switches the color scheme of the stereoscopic image displayed by the image display device depending on whether or not the real-time traffic condition acquisition means can acquire the real-time traffic condition data. 10. The navigation device according to 9. Via a wireless communication circuit, a traffic signal data acquisition means for acquiring traffic signal data indicating the current instruction content of a traffic signal in a geographical area included in a map around the host vehicle displayed by the image display device, and the traffic signal data acquisition means A program that causes a computer to function as display control means for reflecting the instruction content indicated by the acquired traffic signal data on the map that is currently displayed by the image display device. Other vehicle data acquisition means for acquiring other vehicle data indicating the current position of the other vehicle in the geographical area included in the map around the host vehicle displayed by the image display device via the wireless communication circuit;
As a display control means for including an image indicating a vehicle in a portion corresponding to the position of another vehicle indicated by the other vehicle data acquired by the other vehicle data acquisition means in the map currently displayed by the image display device, A program characterized by causing a computer to function. Real-time traffic condition acquisition means for acquiring real-time traffic condition data indicating the current traffic condition in a geographical area included in the road and the stereoscopic image around the road displayed by the image display device via the wireless communication circuit; and
A program that causes a computer to function as display control means for reflecting real-time traffic condition data acquired by the information acquisition means on a stereoscopic image of a road and a road around the road that the image display device currently displays.

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