JPH09189561A - Apparatus for presenting information - Google Patents

Abstract

PROBLEM TO BE SOLVED: To communicate with other vehicles at an optimum timing and display information related to other vehicles on a road map, by obtaining information related to one's own vehicle, communicating with the other vehicles every time the one vehicle moves a predetermined distance, thereby obtaining information of the other vehicles. SOLUTION: An information input circuit 110 detects a running speed, a running distance of one's own vehicle, when the vehicle stops, when the vehicle starts from a stopping state, etc., and estimates that the vehicle is at a congested road, that the vehicle escapes from the congested road, etc. Moreover, the circuit 110 recognizes the present position and an advancing direction of the vehicle by self-contained navigation. A memory device 130 stores information of the vehicle and the periphery of the vehicle in an information-storing part 131, and at the same time, stores information of other vehicles and the periphery of the other vehicles in an other information-storing part 132. A display device 150 displays the information related to one's own vehicle stored in the storing part 131 onto a road map, and also displays the information related to the other vehicles stored in the storing part 132.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information presenting device for displaying information on a vehicle and other vehicles on a road map.

[0002]

2. Description of the Related Art There is known an information presenting apparatus which obtains the positions of other vehicles by communication and displays the positions of the own vehicle and the other vehicles on a road map (for example, Japanese Patent Laid-Open No. 58-22).
3015 publication). In this type of information presentation device, the position of the other vehicle is obtained by communicating with the other vehicle at a predetermined time interval.

[0003]

However, since the above-mentioned conventional information presenting apparatus communicates with another vehicle at a constant time interval, if the communication time interval is shortened, unnecessary information can be obtained. However, if the time interval is extended, important information may not be available. For example,
If another vehicle is parked or is in a traffic jam, the same location information as the previous time will be obtained many times even if communication is performed at short intervals, and the load on the device will be reduced. It is only increasing. On the other hand, when another vehicle changes its course or enters a highway, we want to obtain such important information promptly, but miss the acquisition timing of information because of communication at long time intervals. .

An object of the present invention is to provide an information presenting device which communicates with another vehicle at an optimum timing to obtain information about the other vehicle and displays the information on a road map.

[0005]

[Means for Solving the Problems]

(1) The invention of claim 1 obtains the information on the own vehicle, communicates with the other vehicle every time the own vehicle moves a predetermined distance to obtain the information on the other vehicle, and relates to the own vehicle on the road map. Information and information about other vehicles are displayed. (2) The invention of claim 2 obtains the information about the own vehicle, communicates with the other vehicle every time the situation of the own vehicle changes to obtain the information about the other vehicle, and relates to the own vehicle on the road map. Information and information about other vehicles are displayed. (3) The invention of claim 3 obtains the information about the own vehicle, communicates with the other vehicle every time there is a communication request from the other vehicle, obtains the information about the other vehicle, and relates to the own vehicle on the road map. Information and information about other vehicles are displayed. (4) According to the invention of claim 4, a predetermined moving distance is detected by the own vehicle information acquiring means for acquiring information about the own vehicle, the moving distance detecting means for detecting the moving distance of the own vehicle, and the moving distance detecting means. Communication means to communicate with other vehicles every time and receive information about other vehicles, and on the road map,
Display means for displaying information about the own vehicle acquired by the own vehicle information acquisition means and information about the other vehicle received by the communication means. While obtaining the information about the own vehicle, it communicates with the other vehicle every time the own vehicle moves a predetermined distance to receive the information about the other vehicle, and displays the information about the own vehicle and the information about the other vehicle on the road map. . (5) The invention of claim 5 includes: own vehicle information obtaining means for obtaining information about the own vehicle; and situation change detecting means for detecting a situation change of the own vehicle based on the information obtained by the own vehicle information obtaining means. The communication means communicates with other vehicles each time the situation change detection means detects the situation change of the own vehicle, and receives the information about the other vehicles, and the own vehicle obtained by the own vehicle information acquisition means on the road map. Display means for displaying the information and the information about the other vehicle received by the communication means. In addition to obtaining information about the own vehicle, each time the situation of the own vehicle changes, it communicates with the other vehicle to obtain information about the other vehicle, and displays information about the own vehicle and information about the other vehicle on the road map. . (6) The invention of claim 6 includes: own vehicle information obtaining means for obtaining information about the own vehicle; and communication means for communicating with the other vehicle and receiving information about the other vehicle each time there is a communication request from the other vehicle. Display means for displaying, on the road map, information about the own vehicle obtained by the own vehicle information obtaining means and information about the other vehicle received by the communication means. In addition to obtaining information about the own vehicle, each time there is a communication request from the other vehicle, the vehicle communicates with the other vehicle to obtain the information about the other vehicle, and the information about the own vehicle and the information about the other vehicle are displayed on the road map. . (7) In the information presenting apparatus according to the seventh aspect of the present invention, the information about the own vehicle is transmitted by the communication means when communicating with another vehicle. (8) In the information presenting apparatus according to claim 8, the communication means is provided with another vehicle information storage means for storing information about the other vehicle, and the information about the other vehicle is stored in the other vehicle information storage means every time communication with the other vehicle is performed. In addition, the information about the other vehicle other than the communication partner stored in the other vehicle information storage means is transmitted. (9) According to the invention of claim 9, a predetermined moving distance is detected by the own vehicle information acquiring means for acquiring information about the own vehicle, the moving distance detecting means for detecting the moving distance of the own vehicle, and the moving distance detecting means. Each time it communicates with an external storage device that stores information about other vehicles, it receives information about other vehicles and transmits information about own vehicles, and by means of own vehicle information acquisition means on the road map. Display means for displaying the acquired information on the own vehicle and the information on the other vehicle received by the communication means. In addition to obtaining information about your vehicle, each time your vehicle travels a predetermined distance, it communicates with an external storage device to obtain information about other vehicles and displays information about your vehicle and information about other vehicles on the road map. To do. (10) The invention of claim 10 includes: own vehicle information obtaining means for obtaining information about the own vehicle; and situation change detecting means for detecting a situation change of the own vehicle based on the information obtained by the own vehicle information obtaining means, A communication unit that communicates with an external storage device that stores information about another vehicle each time the situation change detection unit detects a situation change of the own vehicle, receives information about the other vehicle, and transmits information about the own vehicle And a display unit for displaying, on the road map, information about the own vehicle acquired by the own vehicle information acquisition unit and information about another vehicle received by the communication unit. In addition to obtaining information about your vehicle, it communicates with an external storage device each time the situation of your vehicle changes to obtain information about other vehicles, and displays information about your vehicle and information about other vehicles on the road map. To do. (11) The information presentation device according to claim 11 stores, by the external storage device, information about the vehicle transmitted from the vehicle of the current communication partner and stores the stored information about the vehicle other than the current communication partner. It is designed to be sent. (12) In the information presenting device according to claim 12, the external storage device stores the area information, the communication means receives the area information from the external storage device, and the display means receives the area information on the road map by the communication means. The information is displayed. (13) In the information presenting apparatus according to the thirteenth aspect, the display means displays the position of the other vehicle in a display form according to the information regarding the other vehicle. (14) In the information presenting apparatus according to the fourteenth aspect, the display means displays the position of the other vehicle in a display form according to the traveling speed of the other vehicle. (15) In the information presenting apparatus of the fifteenth aspect, the display means displays the position of the other vehicle in a display form according to the traveling direction of the other vehicle. (16) In the information presenting apparatus according to the sixteenth aspect, the display means displays the position of the other vehicle in a display form according to the type of road on which the other vehicle is traveling. (17) The information presenting device according to claim 17 causes the display means to blink the position of the other vehicle for a predetermined time when the other vehicle enters or leaves the expressway, the motorway or the toll road. It is intended to be displayed. (18) In the information presenting apparatus according to the eighteenth aspect, the display means displays the position of the other vehicle when the other vehicle is parked in a display mode different from that when the other vehicle is in the other state. (19) In the information presenting apparatus according to claim 19, the display means displays the position of the other vehicle in a display form different from that in the other state when the other vehicle is in a traffic jam. It was done. (20) According to another aspect of the information presenting apparatus of the present invention, the display means displays the position of the other vehicle in different display modes for the normal traveling state of the other vehicle, the parking state, and the state of being caught in the traffic jam. It was done like this. (21) In the information presenting apparatus according to the twenty-first aspect, the display means displays the predetermined time after the other vehicle starts from the parked state,
The display form showing the parking state and the display form showing the normal traveling state are alternately switched. (22) In the information presenting apparatus according to claim 22, the display means displays the state in which the vehicle is in a traffic jam for a predetermined time after the other vehicle is out of the state in which the traffic is in a traffic jam and the normal traveling state. The display form shown in is switched alternately. (23) In the information presenting apparatus according to the twenty-third aspect, when the other vehicle is in an abnormal state, the display means displays the position of the other vehicle in a display form different from that in the other state. . (24) In the information presenting apparatus according to the twenty-fourth aspect, the display means displays the position of the other vehicle in different display modes depending on whether the abnormality is a travelable state or an abnormality that cannot be traveled. (25) In the information presenting apparatus according to the twenty-fifth aspect, the content of the abnormality of the other vehicle is displayed by the display means. (26) In the information presenting apparatus according to the twenty-sixth aspect, the display means displays the traveling locus of the other vehicle in a display form corresponding to the information regarding the other vehicle. (27) In the information presenting apparatus according to the twenty-seventh aspect, the display means displays the traveling locus of the other vehicle in a display form corresponding to the traveling speed of the other vehicle. (28) In the information presenting apparatus according to claim 28, when the other vehicle travels on a highway, a motorway or a toll road, the information display device of the present invention displays the running locus of those road sections in a blinking manner. Is. (29) An information presenting apparatus according to a twenty-ninth aspect is provided with a calculating means for calculating the relationship between the own vehicle and the other vehicle, and the display means displays the relationship between the own vehicle and the other vehicle calculated by the calculating means. It is a thing. (30) The information presenting apparatus according to a thirtieth aspect is such that the relationship between the own vehicle and the other vehicle includes the distance between the own vehicle and the other vehicle. (31) In the information presenting apparatus according to a thirty-first aspect of the invention, the relationship between the own vehicle and the other vehicle includes a moving time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle. . (32) In the information presenting apparatus according to a thirty-second aspect, the display means displays the position of the own vehicle or the other vehicle in a display form according to the relationship between the own vehicle and the other vehicle. (33) According to the information presenting apparatus of Claim 33, the display means displays the route in which the preceding vehicle has moved from the position of the following vehicle to the position of the preceding vehicle in a display form corresponding to the relationship between the own vehicle and the other vehicle. It is the one. (34) In the information presenting apparatus according to claim 34, the preceding vehicle of the own vehicle and the other vehicle has moved from the position of the following vehicle to the position of the preceding vehicle based on the information about the own vehicle and the information about the other vehicle. A route status detecting means for detecting the status of the route is provided, and the display means displays the status of the moving route detected by the route status detecting means. (35) In the information presenting apparatus according to a thirty-fifth aspect, the display means displays the position of the own vehicle or the other vehicle in a display form corresponding to the situation of the moving route. (36) In the information presenting apparatus according to a thirty-sixth aspect, the display means displays the route from the position of the following vehicle to the position of the preceding vehicle in a display form according to the situation of the moving route. (37) An information presenting apparatus according to a thirty-seventh aspect is provided with a warning means for giving a warning when the relationship between the own vehicle and another vehicle calculated by the calculation means exceeds a preset condition. (38) In the information presenting apparatus according to the thirty-eighth aspect, when the distance between the own vehicle and the other vehicle exceeds a preset distance, the display means blinks the position of the own vehicle or the other vehicle. is there. (39) In the information presenting apparatus according to claim 39, when the moving time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle by the display means exceeds a preset time, the own vehicle or another vehicle is displayed. The position of the vehicle is displayed in a blinking manner. (40) In the information presenting apparatus according to claim 40, the scale of the road map is set by the display means so that the own vehicle and the other vehicles are always displayed on the road map. (41) In the information presentation device according to claim 41, the information about the own vehicle includes the situation of the own vehicle and the surrounding area of the own vehicle, and the information about the other vehicle includes the situation of the other vehicle and the surrounding area of the other vehicle. is there.

[0006]

【The invention's effect】

(1) According to the invention of claim 1, in addition to obtaining the information about the own vehicle, each time the own vehicle moves a predetermined distance, it communicates with the other vehicle to obtain the information about the other vehicle,
Since the information about your vehicle and the information about other vehicles are displayed on the road map, you can check the position of other vehicles when you drive in a row with other vehicles, and the other vehicles can run smoothly. It is possible to confirm the traveling status of another vehicle, such as whether or not the vehicle is present, and the surrounding environment of the other vehicle on the navigation screen of the own vehicle. In addition, information is exchanged at an optimum timing, important information is not lost, and frequent communication is prevented from increasing the load on the device. (2) According to the invention of claim 2, in addition to obtaining the information about the own vehicle, each time the situation of the own vehicle changes, the vehicle communicates with the other vehicle to obtain the information about the other vehicle, and the information about the other vehicle is displayed on the road map. Since the information about the vehicle and the information about the other vehicle are displayed, the same effect as in claim 1 can be obtained. (3) According to the invention of claim 3, in addition to obtaining the information regarding the own vehicle, each time there is a communication request from the other vehicle, communication is performed with the other vehicle to obtain the information regarding the other vehicle,
Since the information about the own vehicle and the information about the other vehicle are displayed on the road map, the same effect as in claim 1 can be obtained. (4) According to the invention of claim 4, while obtaining the information about the own vehicle, and communicating with the other vehicle every time the own vehicle moves a predetermined distance to receive the information about the other vehicle,
Since the information about the own vehicle and the information about the other vehicle are displayed on the road map, the same effect as in claim 1 can be obtained. (5) According to the invention of claim 5, in addition to obtaining the information about the own vehicle, each time the situation of the own vehicle changes, the vehicle communicates with the other vehicle to obtain the information about the other vehicle, and the information about the other vehicle is displayed on the road map. Since the information about the vehicle and the information about the other vehicle are displayed, the same effect as in claim 1 can be obtained. (6) According to the invention of claim 6, in addition to obtaining the information regarding the own vehicle, each time there is a communication request from the other vehicle, the vehicle communicates with the other vehicle to obtain the information regarding the other vehicle,
Since the information about the own vehicle and the information about the other vehicle are displayed on the road map, the same effect as in claim 1 can be obtained. (7) According to the invention of claim 7, the information regarding the own vehicle is transmitted during the communication with the other vehicle. Therefore, when traveling with a plurality of vehicles, the position of the own vehicle in the other vehicles is also changed. In addition to the confirmation, it is possible to confirm the traveling situation of the own vehicle such as whether the own vehicle is traveling smoothly and the surrounding situation of the own vehicle on the navigation screen of another vehicle. Also, information is exchanged at the optimum timing,
It is possible to prevent the important information from being missed, and prevent the communication from being frequently performed and increasing the load on the device. (8) According to the invention of claim 8, the information about the other vehicle is stored every time the vehicle communicates with the other vehicle, and the information about the other vehicle other than the stored communication partner is transmitted. In addition to the effect of claim 1, information on the third vehicle other than the communication partner can be obtained by one communication,
It is possible to reduce the number of communications and reduce the burden of communications processing. (9) According to the ninth aspect of the present invention, the information about the other vehicle is obtained by communicating with the external storage device that stores the information about the other vehicle each time the own vehicle moves a predetermined distance. Since the information is obtained and the information regarding the own vehicle and the information regarding the other vehicle are displayed on the road map, the same effects as those of the first and eighth aspects can be obtained. (10) According to the invention of claim 10, in addition to obtaining the information about the own vehicle, the information about the other vehicle is obtained by communicating with the external storage device each time the situation of the own vehicle changes, and the information is displayed on the road map. Since the information about the own vehicle and the information about the other vehicle are displayed, the same effects as those of the first and eighth aspects can be obtained. (11) According to the invention of claim 11, the external storage device stores the information about the vehicle transmitted from the vehicle of the current communication partner and stores the stored information about the vehicle other than the current communication partner. Since the data is transmitted, in addition to the effect of claim 8, the latest information regarding a plurality of vehicles traveling near the installation location of the external storage device is collected,
Can be provided. (12) According to the invention of claim 12, the area information is stored in the external storage device, the area information is received during communication with the external storage device, and the area information is displayed on the road map. Even if there is no storage device such as a CD-ROM that stores information, the latest area information can always be obtained. (13) According to the invention of claim 13, since the position of the other vehicle is displayed in a display form corresponding to the information regarding the other vehicle, the traveling condition of the other vehicle such as whether the other vehicle is traveling smoothly. Or you can check the surroundings of other vehicles at a glance on the navigation screen of your vehicle. (14) According to the invention of claim 14, since the position of the other vehicle is displayed in a display form corresponding to the traveling speed of the other vehicle, the same effect as in claim 13 can be obtained. (15) According to the invention of claim 15, since the position of the other vehicle is displayed in a display form corresponding to the traveling direction of the other vehicle, the same effect as in claim 13 can be obtained. (16) According to the invention of claim 16, since the position of the other vehicle is displayed in a display form corresponding to the type of the road on which the other vehicle is traveling, when the vehicle is traveling continuously with the other vehicle. , It is possible to easily confirm that another vehicle has entered or left the expressway, motorway or toll road. (17) According to the invention of claim 17, when the other vehicle enters or exits the expressway, the motorway or the toll road, the position of the other vehicle is displayed blinking for a predetermined time. Therefore, it is possible to reliably know that the other vehicle has entered or left the highway, the motorway, or the toll road when the vehicle is traveling continuously with the other vehicle. (18) According to the invention of claim 18, when the other vehicle is parked, the position of the other vehicle is displayed in a display form different from that when the other vehicle is parked. You can easily check if it is moving or if you are running smoothly. (19) According to the invention of claim 19, the position of the other vehicle is displayed in a display mode different from that in the other state when the other vehicle is in a traffic jam. You can easily check whether the vehicle is stuck in a traffic jam and does not move, or whether it is running smoothly. (20) According to the invention of claim 20, in the normal traveling state of the other vehicle, the parking state, and the state of being caught in traffic,
Since the position of the other vehicle is displayed in a different display form, whether the other vehicle is parked and does not move, is the other vehicle stuck in a traffic jam and does not move, or is running smoothly? It can be easily confirmed. (21) According to the invention of claim 21, the display form showing the parking state and the display form showing the normal traveling state are alternately switched for a predetermined time after the other vehicle starts from the parking state. It is possible to reliably grasp changes in the status of other vehicles. (22) According to the invention of claim 22, for a predetermined time after the other vehicle has come out of the state of being jammed with traffic, a display form showing the state of being jammed with traffic jam and a display form showing the normal traveling state Since the and are switched alternately, claim 2
The same effect as 1 can be obtained. (23) According to the invention of claim 23, when the other vehicle is in the abnormal state, the position of the other vehicle is displayed in a display form different from that in the other state. Can be surely grasped. (24) According to the invention of claim 24, since the position of the other vehicle is displayed in different display forms depending on whether the abnormality is that traveling is possible or not, the occupant on the own vehicle side is informed of the abnormality of the other vehicle. It is possible to know the degree, and it is possible to determine an appropriate response on the side of the own vehicle, such as joining the vehicle to assist another vehicle or watching the situation for a while. (25) According to the invention of claim 25, since the abnormality content of the other vehicle is displayed, the same effect as that of claim 24 can be obtained. (26) According to the invention of claim 26, since the traveling locus of the other vehicle is displayed in a display form corresponding to the information regarding the other vehicle, when the vehicle travels continuously with the other vehicle, the other vehicle smoothly moves. You can easily check whether you are running,
Even if the road traffic information is not provided by VICS or the like, it is possible to estimate the condition of the road on which another vehicle is traveling. (27) According to the invention of claim 27, since the traveling locus of the other vehicle is displayed in a display form corresponding to the traveling speed of the other vehicle, the same effect as in claim 26 can be obtained. (28) According to the invention of claim 28, when another vehicle travels on a highway, a motorway or a toll road, the traveling loci of those road sections are displayed in a blinking manner. It is possible to reliably grasp the entry and exit of highways, motorways, and toll roads. (29) According to the invention of claim 29, since the relationship between the own vehicle and the other vehicle is calculated and displayed, it is possible to know the relationship between the own vehicle and the other vehicle such as the distance or the traveling time. it can. (30) According to the invention of claim 30, since the distance between the own vehicle and the other vehicle is calculated and displayed, it is possible to easily confirm how far the other vehicle is. (31) According to the invention of claim 31, the moving time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle is calculated and displayed.
The same effect as 0 can be obtained. (32) According to the invention of claim 32, since the position of the own vehicle or the other vehicle is displayed in a display form according to the relationship between the own vehicle and the other vehicle, the distance from the other vehicle can be confirmed at a glance. be able to. (33) According to the invention of claim 33, since the route in which the preceding vehicle has moved from the position of the following vehicle to the position of the preceding vehicle is displayed in a display form according to the relationship between the own vehicle and the other vehicle, The status of the route to the position of the preceding vehicle can be checked at a glance, and prompt action can be taken. (34) According to the invention of claim 34, the preceding vehicle of the own vehicle and the other vehicle has moved from the position of the following vehicle to the position of the preceding vehicle based on the information about the own vehicle and the information about the other vehicle. Since the condition of the route is detected and displayed, the same effect as in claim 33 can be obtained. (35) According to the invention of claim 35, the preceding vehicle of the own vehicle and the other vehicle has moved from the position of the following vehicle to the position of the preceding vehicle based on the information about the own vehicle and the information about the other vehicle. Since the situation of the route is detected and the position of the own vehicle or the other vehicle is displayed in the display form according to the situation of the moving route, the same effect as in claim 33 is obtained. (36) According to the invention of claim 36, the preceding vehicle of the own vehicle and the other vehicle has moved from the position of the following vehicle to the position of the preceding vehicle based on the information about the own vehicle and the information about the other vehicle. Since the condition of the route is detected and the route from the position of the following vehicle to the position of the preceding vehicle is displayed in a display form according to the condition of the moving route, the same effect as in claim 33 can be obtained. (37) According to the invention of claim 37, the warning is issued when the calculated relation between the own vehicle and the other vehicle exceeds a preset situation, so that it is necessary for the occupant to take some measures. Can be recognized. (38) According to the invention of claim 38, when the distance between the own vehicle and the other vehicle exceeds a preset distance, the position of the own vehicle or the other vehicle is displayed in a blinking manner. The occupant can be surely made aware that the size has become so large that it is necessary to take measures. (39) According to the invention of claim 39, when the traveling time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle exceeds a preset time, the position of the own vehicle or another vehicle is changed. Since the display is made to blink, the occupant can be surely made aware that the time lag between the vehicles has become so large that some measure must be taken. (40) According to the invention of claim 40, the scale of the road map is set so that the own vehicle and the other vehicle are always displayed on the road map. It is not necessary to change the scale of the road map each time it is removed, which improves operability. (41) According to the invention of claim 41, the information about the own vehicle includes the situation of the own vehicle and the surrounding area of the own vehicle, and the information about the other vehicle includes the situation of the other vehicle and the surrounding area of the other vehicle. , Driving speed, direction of travel, parking, starting from a parked state, getting stuck in traffic, getting out of traffic, getting into a highway, motorway or toll road, getting out of those roads Information about the situation of the own vehicle and other vehicles such as the fact that an abnormality has occurred, traffic congestion around the vehicle received by the VICS receiver, traffic accident, traffic regulation, road construction, etc. Information about the surrounding situation can be confirmed on the navigation screen.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION

-Embodiment of 1st invention-FIG. 1: is a functional block diagram which shows the structure of 1st Embodiment. The information presenting apparatus of the first embodiment includes a circuit 110 for inputting information about the own vehicle and information about the surrounding area of the own vehicle, a circuit 120 for generating a communication interruption, a device 130 for storing various kinds of information, and another vehicle. Circuit 140 for communicating
And a device 150 for displaying various information.

The information input circuit 110 is connected to a GPS receiver, a gyroscope, a vehicle speed sensor, a VICS (road traffic information communication system) receiver, a parking brake switch, a road map storage device, a failure diagnosis device, etc., which are not shown. . The information input circuit 110 detects, based on the information from the vehicle speed sensor and the parking brake switch, the traveling speed and traveling distance of the vehicle, that the vehicle has been parked, that the vehicle has started from the parked state, etc., and the vehicle is on a congested road. I guess I got out of the traffic jam. Further, the information input circuit 110 recognizes the current position and the traveling direction of the own vehicle based on the radio navigation by the GPS receiver and the road map information of the road map storage device, and the fact that the own vehicle is parked and the parking state. I speculate that I started from, I was in a traffic jam, I got out of a traffic jam, etc. The vehicle speed sensor is attached to, for example, the transmission of the vehicle and generates a predetermined number of pulse signals per one revolution of the speedometer pinion. The information input circuit 110 measures the traveling speed of the vehicle by counting the number of output pulses of the vehicle speed sensor per unit time, and calculates the traveling distance by multiplying the cumulative count of output pulses by the traveling distance per pulse. To do.

The information input circuit 110 also recognizes the current position and the traveling direction of the vehicle by self-contained navigation based on the information from the road map storage device, the gyroscope and the vehicle speed sensor. Then, based on the current position and traveling direction by radio navigation and / or self-contained navigation, traveling speed, movement distance,
Recognize that you have parked, started from a parked state, are in a traffic jam, have exited a traffic jam, have entered a highway, a motorway or a toll road, and have exited from these roads. The information input circuit 110 further includes
Detects a failure or abnormality of the own vehicle based on the information from the failure diagnosis device of the own vehicle, and based on the information from the VICS receiver, the current position of the own vehicle, being in a traffic jam, getting out of the traffic jam, etc. Recognize.

The communication interrupt generation circuit 120 includes a vehicle event monitoring unit 121, a moving distance monitoring unit 122, and a communication interrupt monitoring unit 123, and interrupts the communication circuit 140 to activate communication with another vehicle. . The vehicle event monitoring unit 121 monitors the status change of the own vehicle output from the information input circuit 110, such as parking / starting, traffic jam entry / exit, expressway entry / exit, vehicle abnormality, and the like. And a communication interrupt is generated. In addition, the moving distance monitoring unit 122
Monitors the moving distance of the vehicle output from the information input circuit 110, and generates a communication interrupt each time the vehicle moves a predetermined distance. Furthermore, the communication interrupt monitoring unit 123 monitors a communication request from another vehicle and generates a communication interrupt when the communication request is received from the other vehicle.

The storage device 130 includes an own vehicle information storage unit 131 that stores information about the own vehicle and information around the own vehicle, and another vehicle information storage unit 132 that stores information about another vehicle and information around the other vehicle. Prepare

Here, the information of the own vehicle includes the current position of the own vehicle, traveling speed, traveling direction, parking, starting from a parked state, being caught in a traffic jam, getting out of a traffic jam, and high speed. It includes information about the status of the vehicle such as entering a road, a motorway, or a toll road, exiting from the road, or a failure or abnormality of the vehicle. Similarly, other vehicle information includes the current position of the other vehicle, traveling speed, direction of travel, parking, starting from a parked state, being caught in a traffic jam, getting out of a traffic jam, a highway or a car. It includes information about the status of other vehicles, such as entering a dedicated road or toll road, exiting from those roads, or failure or abnormality in another vehicle. In addition, the information around the vehicle is VIC
The information about the situation around the own vehicle such as traffic congestion around the own vehicle, traffic accident, traffic regulation, and road construction received by the S receiver is included. Similarly, the information around other vehicles,
Traffic congestion around other vehicles received by VICS receiver,
It includes information about the situation around other vehicles, such as traffic accidents, traffic regulations, and road construction. In this specification, the information about the own vehicle and the information around the own vehicle are referred to as “information about the own vehicle”, and the information about other vehicles and the information around the other vehicle are referred to as “information about the other vehicle”.

The communication circuit 140 includes a transmitter 141 and a receiver 1.
42, and is activated by the communication interrupt generation circuit 120. The transmission unit 141 inputs information about the own vehicle from the own vehicle information storage unit 131 and transmits the information to another vehicle. The receiving unit 142 receives information about another vehicle from the other vehicle and stores the information in the other vehicle information storage unit 132.

The display device 150 displays the information about the own vehicle stored in the own vehicle information storage unit 131 and the information about the other vehicle stored in the other vehicle information storage unit 132 on the road map. To do. Display device 15
0 displays the position of the vehicle, the direction of travel, and the optimum route to the destination on the road map, as well as the conventional navigation device for vehicles, and displays information such as traffic congestion and traffic accidents obtained via VICS. The information around the vehicle is displayed, and further the information about the other vehicle obtained from the other vehicle is displayed.

In the method of displaying the information about the other vehicle, for example, a mark indicating the other vehicle is displayed at the current position of the other vehicle on the road map, and the information about the other vehicle is displayed around the mark or at a predetermined position. In addition, information regarding other vehicles is broadcast by voice, for example, "The road on which the other vehicle is running is congested."

When the situation of the own vehicle changes, the vehicle event monitoring section 121 generates a communication interruption. And
The transmitting unit 141 transmits the information regarding the own vehicle stored in the own vehicle information storage unit 131 to the other vehicle, and the receiving unit 142 receives the information regarding the other vehicle from the other vehicle and stores the information in the other vehicle information storage unit 132. To do. Further, the information about the own vehicle and the information about the other vehicle stored in the storage device 130 are superimposed on the road map and displayed on the display device 150.

When the vehicle is parked, starts from a parked state, gets caught in a traffic jam, gets out of a traffic jam, a highway, a motorway or a toll road changes. This includes when entering, when exiting from those roads, when a vehicle failure or abnormality is detected, and so on.

On the other hand, when the host vehicle has moved a predetermined distance since the last communication, the moving distance monitoring unit 122 generates a communication interruption. Then, similar to the operation at the time of changing the situation of the own vehicle described above, while transmitting the information about the own vehicle to the other vehicle, receiving and storing the information about the other vehicle from the other vehicle, the information is displayed on the road map. Overlay and display.
The distance traveled by the vehicle that causes the communication interruption is
If shortened, communication will be performed frequently and the load on the device will increase,
If the length is long, important information may not be available, so set the optimum value through experiments. For example, since the travel distance per unit time is different between the general road and the expressway, the optimum value may be automatically selected according to the type of road. Also, a value may be automatically set according to the condition of the traveling road such as traffic jam.

When a communication request is received from another vehicle,
The communication interrupt monitoring unit 123 generates a communication interrupt. Then, the receiving unit 142 receives information about the other vehicle from the other vehicle, stores the information about the other vehicle in the other vehicle information storage unit 132, and the transmitting unit 141 stores the information about the own vehicle stored in the own vehicle information storage unit 131. Send to.
Further, the information about the own vehicle and the information about the other vehicle stored in the storage device 130 are superimposed on the road map and displayed on the display device 150.

According to the flow charts shown in FIGS. 2 to 6,
The operation of the first embodiment will be described. FIG. 2 is a flowchart showing the overall operation of the first embodiment. In step 1 of FIG. 2, a telephone number of another vehicle and a mark indicating the position of the other vehicle are set by an input device (not shown). Here, when displaying information about a plurality of other vehicles, enter characters for identification, such as the name of an occupant riding the other vehicle, and display it near the mark indicating the position of the other vehicle. May be. Further, the mark indicating the position of another vehicle may be automatically set in the communication order. Figure 3 in step 2
The process shown in (1) is executed, the information regarding the own vehicle is acquired by the input circuit 110, and is stored in the own vehicle information storage unit 131. In step 3, when the communication interrupt monitoring unit 123 receives a communication request from another vehicle, the process proceeds to step 4, the process shown in FIG. 4 is executed, and the receiving unit 142 receives the information about the other vehicle and stores the other vehicle information. In addition to being stored in the unit 132, the transmitting unit 141 transmits the information about the own vehicle stored in the own vehicle information storage unit 131 to another vehicle.

If there is no communication request from another vehicle, in step 5, after the previous communication by the moving distance monitoring unit 122,
It is confirmed whether or not the movement distance has reached the set value, and when it reaches the set value, the process proceeds to step 6. In step 6, the processing shown in FIG. 5 is executed, the transmitting unit 141 transmits the information about the own vehicle stored in the own vehicle information storage unit 131 to the other vehicle, and the receiving unit 142 relates to the other vehicle. The information is received and stored in the other vehicle information storage unit 132. If the travel distance after the previous communication has not reached the set value, the vehicle event monitoring unit 121 confirms in step 7 whether the situation of the host vehicle has changed, and if the situation has changed, the process proceeds to step 6. In step 6, as described above, the processing shown in FIG. 5 is executed to exchange information with other vehicles.

In step 8, the process shown in FIG. 6 is executed to display a road map including the current positions of the own vehicle and other vehicles on the display device 150, and the preset own vehicle and other vehicles are shown on the road map. In addition to displaying the mark, information regarding the own vehicle and information regarding other vehicles is displayed. Then, it returns to step 2 and repeats the above-mentioned processing.

According to the flowchart of FIG. 3, the input circuit 1
Acquisition of information regarding the own vehicle by 10 and storage processing thereof will be described. In step 11, the current position and traveling direction of the host vehicle are input from the GPS receiver, and then step 12
Enter the direction of travel of your vehicle from the gyroscope.
Further, in step 13, the vehicle speed pulse signal is input from the vehicle speed sensor, and in step 14, the traveling speed and the moving distance of the own vehicle are obtained based on the vehicle speed pulse signal and stored in the own vehicle information storage unit 131. Steps 15-17
In step 1, the travel locus is obtained from the traveling direction and the travel distance of the own vehicle obtained earlier, and the map matching is performed with the road map information in the road map storage device. Then, the current position and traveling direction of the own vehicle are calculated by self-contained navigation, and the storage unit 131
To memorize.

In step 18, it is confirmed whether or not the host vehicle is in a stopped state, and if it is in a stopped state, step 1
Go to 9. In step 19, it is confirmed whether or not the vehicle was in a stopped state at the previous execution of the process shown in FIG. When the vehicle is not stopped last time but is stopped this time, it is determined that the own vehicle has just stopped, and in step 20, the stop event of the own vehicle is stored in the storage unit 131. on the other hand,
If the vehicle is not stopped, the process proceeds from step 18 to step 21 to check whether the vehicle was previously stopped. If the vehicle was in the stopped state last time but not in the stopped state this time, it is determined that the host vehicle has just started, and in step 22, the start event of the host vehicle is stored in the storage unit 131.

In step 23, information about the surroundings of the vehicle is input from the VICS receiver, and in the following step 24, it is confirmed whether or not the road on which the vehicle is running is congested. If there is congestion, go to step 25 and check if there was congestion last time. If there is no congestion last time and there is congestion this time, it is determined that the traffic has just occurred, and the congestion event of the host vehicle is stored in the storage unit 131. On the other hand, if there is no traffic jam, the process proceeds from step 24 to step 27, and it is confirmed whether or not there was traffic jam last time. If the previous time was in a traffic jam state but not this time in a traffic jam state, it is determined that the traffic jam has just been resolved, and in step 28, the traffic jam escape event of the own vehicle is stored in the storage unit 131.

In step 29, it is confirmed whether or not the host vehicle is traveling on the highway, and if it is traveling on the highway, the process proceeds to step 30. In step 30, it is confirmed whether the vehicle was traveling on the expressway last time. If you did not drive on the highway last time and this time on the highway, determine that your vehicle has just entered the highway,
In step 31, the event of the vehicle entering the expressway is stored in the storage unit 131. On the other hand, when the vehicle is not traveling on the highway, the routine proceeds from step 29 to step 32, and it is confirmed whether or not the vehicle was traveling on the highway last time. If you were driving on the highway last time but not on the highway this time, determine that your vehicle has just left the highway,
In step 33, the highway exit event of the host vehicle is stored in the storage unit 131.

In steps 34 and 35, diagnostic information is input from the failure diagnostic device to check whether there is an abnormality. If there is an abnormality, the process proceeds to step 36, and it is confirmed whether or not the abnormality was previously detected. When the vehicle abnormality is not detected last time and the vehicle abnormality is detected for the first time this time, it is determined that the vehicle abnormality has occurred immediately after, and the vehicle abnormality occurrence is stored in the storage unit 131 in step 37. that's all,
When the acquisition of the information regarding the own vehicle is completed, the process returns to step 3 in FIG.

Next, the communication interruption process from another vehicle will be described with reference to the flowchart of FIG. First, in step 41, the communication circuit 140 connects a communication line to another vehicle, and in the following step 42, it is confirmed whether the connection is successful. Step 48 if the connection is unsuccessful
Then, the process is performed again to connect again at the next execution of the process shown in FIG. When the connection of the communication line with the other vehicle is successful, the receiving unit 142 receives the information about the other vehicle from the other vehicle in Step 43, and the storage unit 1 is received in Step 44.
The transmitting unit 14 transmits the information about the own vehicle stored in 31.
1 to another vehicle. When the exchange of information with the other vehicle is completed, the communication line is opened in step 45, and the information regarding the other vehicle received in step 46 is stored in the storage unit 13.
Stored in 2. Then, after resetting the communication history in step 47, the process returns to step 8 in FIG.

Next, the communication interruption process according to the change of the condition of the vehicle or the moving distance will be described with reference to the flowchart of FIG. First, in step 51, the communication circuit 140
Then, the communication line is connected to another vehicle, and it is confirmed in the following step 52 whether the connection is successful. If the connection is unsuccessful, the process proceeds to step 58, and the connection is made again at the next execution of the process shown in FIG. When the connection of the communication line with another vehicle is successful, in step 53 the storage unit 1
The transmitting unit 14 transmits the information about the own vehicle stored in 31.
1 to the other vehicle, and in the following step 54, the receiving unit 142 receives information regarding the other vehicle from the other vehicle. When the information exchange with other vehicles is completed, step 55
Then, the communication line is opened, and the information about the other vehicle received in the following step 56 is stored in the storage unit 132. Then, after resetting the communication history in step 57, the process returns to step 8 in FIG.

The display processing of the information regarding the own vehicle and the information regarding the other vehicle will be described with reference to the flowchart of FIG.
In step 61, the drawing range of the road map including the current position of the vehicle is calculated. In a succeeding step 62, the road map is drawn on the display device 150 and the mark of the own vehicle is drawn at the current position of the own vehicle. In step 63, it is confirmed whether or not the information regarding the other vehicle is stored in the storage unit 132, and if there is the information regarding the other vehicle, the step 6
Go to step 4 and check whether the information is within the drawing range of the road map. If the information regarding the other vehicle is within the drawing range, in step 65, the mark of the other vehicle is drawn at the current position of the other vehicle on the road map.

At step 66, it is confirmed based on the information about the other vehicle whether or not the situation of the other vehicle has changed, and if some event occurs in the other vehicle, the process proceeds to step 67 to determine whether or not to display the event information. To do.
This judgment is made by the display device 15 from the information about other vehicles.
The information to be displayed in 0 may be selected in advance and only the selected information may be displayed. Alternatively, the information indicating the importance may be ranked according to the type of information so that only the information with high importance is displayed. May be. If it is the information to be displayed, the information is drawn on the road map in step 68.

FIG. 7 shows a display device 1 according to the first embodiment.
An example of the navigation screen displayed on 50 is shown. In the figure, triangular marks indicate the own vehicle and its traveling direction, and three round marks indicate three other vehicles. Different colors are set in advance for the three other vehicle marks to distinguish them. The shapes of the marks indicating the own vehicle and the other vehicles are not limited to this embodiment. Further, each other vehicle may be distinguished by the shape of the mark.

In this way, when the own vehicle moves for a predetermined distance, or when the situation of the own vehicle changes, or when there is a communication request from the other vehicle, communication is performed with the other vehicle, and information regarding the own vehicle is provided. The information about the other vehicle is received from the other vehicle, and the information about the own vehicle and the information about the other vehicle are displayed on the road map. It is possible to confirm on the navigation screen of the own vehicle the traveling situation of the other vehicle such as where the vehicle is currently traveling, and whether the other vehicle is traveling smoothly. In addition, when the running condition of the own vehicle changes, it automatically communicates with other vehicles, so information is exchanged at the optimum timing, and important information is not missed. It is also possible to prevent an increase in the load on the device due to communication being performed. Furthermore, since the traveling status of the other vehicle is broadcast by voice, the traveling status of the other vehicle can be grasped without looking at the screen.

-Embodiment of the Second Invention- A second embodiment will be described in which the position of another vehicle is displayed in a display form corresponding to the traveling speed of the other vehicle. In addition,
The configuration and part of the operation of the second embodiment are similar to those of the first embodiment described with reference to FIGS. 1 to 5, and the different points will be mainly described. The traveling speed of the other vehicle is extracted from the information about the other vehicle acquired through communication with the other vehicle, and the mark indicating the position of the other vehicle is displayed in a color corresponding to the traveling speed of the other vehicle. For example, when the traveling speed of the other vehicle is 10 km / h or less, red, when the traveling speed is 10 to 30 km / h, yellow, 30
-60 km / h is green, and 60 km / h or more is blue. The traveling speed of the other vehicle is detected by a vehicle speed sensor provided in the other vehicle.

Further, the traveling locus of another vehicle may be displayed according to the traveling speed. For example, a section of 10 km / h or less is red, a section of 10 to 30 km / h is yellow, 3
The section of 0 to 60 km / h is green, and the section of 60 km / h or more is blue.

The information display processing of the second embodiment will be described with reference to the flowchart shown in FIG. Note that steps that perform the same processing as the information display processing of the first embodiment shown in FIG. 6 will be assigned the same step numbers, and the differences will be mainly described. When the information regarding the other vehicle stored in the other vehicle information storage unit 132 is within the drawing range, the traveling speed of the other vehicle is extracted from the information regarding the other vehicle in step 64A, and the traveling speed is determined according to the traveling speed. Set the color of other vehicle mark. In step 65, another vehicle mark is drawn at the current position of the other vehicle on the road map. Further, in step 65A, the traveling locus of the other vehicle is drawn in a color corresponding to the traveling speed. If there are multiple other vehicles,
The color of the other vehicle mark and the traveling locus corresponding to the traveling speed is set for each of the other vehicles.

The shape of the mark indicating the position of the other vehicle may be changed according to the traveling speed of the other vehicle. For example, as shown in Fig. 9, when the speed is 10 km / h or less, a circle appears in the circle.
In the case of 10 to 30 km / h, it is represented by a triangle in a circle, in the case of 30 to 60 km / h, it is represented by a single circle, and when it is 60 km / h or more, it is represented by a double circle.

In this way, the position of the other vehicle is displayed in a color corresponding to the traveling speed, so that when the vehicle travels continuously with the other vehicle, it is easy to determine whether or not the other vehicle is traveling smoothly. It can be confirmed, and the condition of the road on which another vehicle is traveling can be estimated even if the road traffic information is not provided by VICS or the like. Further, since the traveling locus of the other vehicle is displayed in a color corresponding to the traveling speed, the same effect as above can be obtained.

Although the display form of the other vehicle mark or the traveling locus is changed according to the traveling speed in the information about the other vehicle, the congestion information is extracted from the information around the other vehicle to determine the degree of the congestion. The display form of the other vehicle mark or the traveling locus may be changed accordingly. Alternatively, the display form of the other vehicle mark or the traveling locus may be changed according to information about the other vehicle other than the traveling speed of the other vehicle and the degree of traffic congestion around the other vehicle. Also, if the display form of the other vehicle mark is changed according to the traveling speed of the other vehicle obtained each time the vehicle communicates with the other vehicle, the display form may change frequently. The value may be obtained, and the display form of the other vehicle mark may be changed according to the average value.

-Embodiment of the Third Invention- A third embodiment will be described in which the position of another vehicle is displayed in a display form corresponding to the traveling direction of the other vehicle. In addition,
The configuration and part of the operation of the third embodiment are the same as those of the first embodiment described with reference to FIGS. 1 to 5, and differences will be mainly described. The traveling direction of the other vehicle is extracted from the information about the other vehicle acquired through communication with the other vehicle, and the position of the other vehicle is displayed with a mark indicating the traveling direction. For example, as shown in FIG. 10, the position of the host vehicle and its traveling direction are displayed with a large triangular mark, and the position of another vehicle and its traveling direction are displayed with a small triangular mark.
When there are a plurality of other vehicles, the color of the small triangular mark is changed and displayed for each other vehicle.

According to the flowchart shown in FIG. 11, the third
The information display process of the embodiment will be described. Note that steps that perform the same processing as the information display processing of the first embodiment shown in FIG. 6 will be assigned the same step numbers, and the differences will be mainly described. When the information regarding the other vehicle stored in the other vehicle information storage unit 132 is within the drawing range, the traveling speed of the other vehicle is extracted from the information regarding the other vehicle in step 64A, and the traveling speed is determined according to the traveling speed. Set the color of other vehicle mark. In step 65, another vehicle mark is drawn at the current position of the other vehicle on the road map. Further, in step 65B, it is confirmed whether or not there is the traveling locus data of the other vehicle in the other vehicle information storage unit 132. If there is the traveling locus data of the other vehicle, the process proceeds to step 65C, and the traveling locus of the other vehicle is changed according to the traveling speed. Drawn in different colors. When there are a plurality of other vehicles, the color of the other vehicle mark and the traveling locus corresponding to the traveling speed are set for each of the other vehicles.
In step 65D, it is confirmed whether the other vehicle turns right or left at the intersection based on the information about the other vehicle.
If there is a right or left turn, the process proceeds to step 65E, and the other vehicle mark is drawn at the current position of the other vehicle so that the traveling direction of the other vehicle mark coincides with the right or left turning direction of the other vehicle.

In this way, the position of the other vehicle is displayed by the mark indicating the traveling direction of the other vehicle, so that it is possible to easily confirm where the other vehicle is turning at the intersection, and the position information of the other vehicle is obtained by radio navigation. It is possible to accurately grasp the traveling direction of other vehicles even if the error of self-contained navigation is included.

-Embodiment of Fourth Invention- A fourth embodiment will be described in which the position of another vehicle is displayed in a display form corresponding to the type of road on which the other vehicle is traveling. From the information about other vehicles obtained through communication with other vehicles, extract the type of road on which the other vehicle is traveling,
The position of another vehicle is displayed with a mark according to the type of road on which the other vehicle is traveling. In particular, when traveling in conjunction with another vehicle, the entry / exit of the other vehicle to / from the expressway, the motorway or the toll road is important information. It is desirable to have a display form that clearly shows whether you are driving on a dedicated road or toll road. For example, as shown in FIG. 12, the triangular marks of other vehicles traveling on the highway are displayed in white, and the triangular marks of other vehicles traveling on the general road are filled.

According to the flowchart shown in FIG. 13, the fourth
The information display process of the embodiment will be described. Note that steps that perform the same processing as the information display processing of the first embodiment shown in FIG. 6 will be assigned the same step numbers, and the differences will be mainly described. If the information regarding the other vehicle stored in the other vehicle information storage unit 132 is within the drawing range, in step 64B, the other vehicle is traveling on the general road based on the information regarding the other vehicle, or the highway. Check if you are traveling on a car or toll road. If another vehicle is traveling on a highway, a motorway or a toll road, a mark indicating the position of the other vehicle is set in step 64C in accordance with a preset highway, motorway or toll road. Change to. And
In step 65, another vehicle mark is drawn at the current position of the other vehicle on the road map. Further in step 65B,
It is confirmed whether or not there is the traveling locus data of the other vehicle in the other vehicle information storage unit 132, and if there is the traveling locus data of the other vehicle, the process proceeds to step 65C, and the traveling locus of the other vehicle is drawn in a color according to the traveling speed. . When there are a plurality of other vehicles, a mark corresponding to the type of road on which the vehicle is traveling is set for each of the other vehicles.

In this way, the position of the other vehicle is displayed with a mark corresponding to the type of road on which the other vehicle is traveling. You can easily check that you have entered or left a motorway or toll road. When another vehicle enters or leaves a highway, a motorway, or a toll road, the mark indicating the position of the other vehicle may blink for a predetermined time.
Further, when another vehicle travels on a highway, a motorway, or a toll road, the traveling loci of those road sections may be displayed in a blinking manner. As a result, it is possible to reliably grasp the entry and exit of the other vehicle to the expressway, the motorway, and the toll road.

-Embodiment of the Fifth Invention- The fifth embodiment is adapted to display the position of another vehicle in different forms depending on whether the other vehicle is in a normal running state, a parked state, or a state in which the vehicle is congested. An embodiment will be described. A normal traveling state, a parking state, and a state of being caught in a traffic jam are detected based on the information about the other vehicle, and the position of the other vehicle is displayed with a mark corresponding to each state. Further, when the other vehicle starts from the parked state, the mark of the parked state and the mark of the normal traveling state are alternately displayed for 5 seconds, for example. Similarly, when exiting the traffic jam state, the traffic jam state mark and the normal running state mark are displayed alternately for, for example, 5 seconds.

According to the flow chart shown in FIG.
The information display process of the embodiment will be described. Note that steps that perform the same processing as the information display processing of the first embodiment shown in FIG. 6 will be assigned the same step numbers, and the differences will be mainly described. When the information about the other vehicle stored in the other vehicle information storage unit 132 is within the drawing range, in step 64D, it is confirmed whether or not the other vehicle is in a traffic jam based on the information about the other vehicle. .
If another vehicle is stuck in the traffic, step 64
Proceed to E and change the mark indicating the position of the other vehicle to traffic jam. Then, in step 64L, the traffic jam mark is displayed at the current position of the other vehicle on the road map. If the other vehicle is not caught in the traffic jam, it is confirmed in step 64F whether or not the other vehicle is parked based on the information about the other vehicle.
If another vehicle is parked, the process proceeds to step 64G, and the mark indicating the position of the other vehicle is changed to parking. Then, in step 64L, the parking mark is displayed at the current position of the other vehicle on the road map.

If the other vehicle is not caught in the traffic jam and is not parked, it is confirmed in step 64H whether or not the other vehicle has just left the traffic jam based on the information about the other vehicle. If the other vehicle has just left the traffic jam, the process proceeds to step 64I and the traffic jam mark and the normal travel mark are alternately displayed at the current position of the other vehicle for 5 seconds. On the other hand, if it is not immediately after the other vehicle has exited the traffic jam, it is confirmed in step 64J whether or not the other vehicle has just started from the parking state based on the information about the other vehicle. Immediately after starting from the parked state, the process proceeds to step 64K and the parking mark and the normal traveling mark are alternately displayed at the current position of the other vehicle on the road map for 5 seconds.
When there are a plurality of other vehicles, a mark is set according to the state of each other vehicle. In step 65B, it is confirmed whether or not there is traveling locus data of the other vehicle in the other vehicle information storage unit 132. If there is traveling locus data of the other vehicle, the process proceeds to step 65C, and the traveling locus of the other vehicle is determined according to the traveling speed. Draw in color.

As described above, the normal traveling state, the parked state, and the state of being jammed by the other vehicle are detected, and the position of the other vehicle is displayed by the mark corresponding to each state.
When another vehicle starts from the parked state, the parked state mark and the normal running state mark are alternately displayed for a predetermined time, and when the other vehicle is out of the traffic jam state, the traffic jam state mark and the normal running state mark are alternately displayed for a predetermined time period. Since it is displayed, it is easy to check whether another vehicle is running smoothly, is parked, starts from the parked state, is stuck in a traffic jam, or has escaped from a traffic jam. .

-Embodiment of Sixth Invention- The position of another vehicle is displayed in a different form depending on the parking state of the other vehicle, the state of being trapped in a traffic jam, and the state in which an abnormality has occurred. Six embodiments will be described. Based on the information about other vehicles, the parking state, the state of being caught in a traffic jam, and the state in which an abnormality has occurred are detected, and the position of the other vehicle is displayed with a mark corresponding to each state. Further, when an abnormality has occurred, it is detected whether the vehicle can travel or cannot travel based on the information about the other vehicle, and the position of the other vehicle is displayed with a mark according to the degree of the abnormality.

According to the flow chart shown in FIG.
The information display process of the embodiment will be described. It should be noted that the same step numbers are assigned to the steps that perform the same processing as the information display processing of the first embodiment shown in FIG. 6 and the information display processing of the fifth embodiment shown in FIG. The difference will be mainly described. When the information about the other vehicle stored in the other vehicle information storage unit 132 is within the drawing range, it is confirmed in step 64M whether or not an abnormality has occurred in the other vehicle based on the information about the other vehicle. If an abnormality has occurred in the other vehicle, the process proceeds to step 64N, and the mark indicating the position of the other vehicle is changed to the abnormality mark. At this time, different marks are used depending on the degree of abnormality, that is, whether the vehicle can travel or cannot travel.

If there is no abnormality in the other vehicle, step 64D.
Proceed to and check if the other vehicle is in a traffic jam based on the information about the other vehicle. If another vehicle is in a traffic jam, the process proceeds to step 64E and the mark indicating the position of the other vehicle is changed to the traffic jam. Then, in step 64L, the traffic jam mark is displayed at the current position of the other vehicle on the road map. If the other vehicle is not caught in the traffic jam, it is confirmed in step 64F whether or not the other vehicle is parked based on the information about the other vehicle. If another vehicle is parked, the process proceeds to step 64G, and the mark indicating the position of the other vehicle is changed to parking. Then, in step 64L, the parking mark is displayed at the current position of the other vehicle on the road map.

If the other vehicle is not caught in the traffic and is not parked, it is confirmed in step 64H whether or not the other vehicle has just left the traffic based on the information about the other vehicle. If the other vehicle has just left the traffic jam, the process proceeds to step 64I and the traffic jam mark and the normal travel mark are alternately displayed at the current position of the other vehicle for 5 seconds. On the other hand, if it is not immediately after the other vehicle has exited the traffic jam, it is confirmed in step 64J whether or not the other vehicle has just started from the parking state based on the information about the other vehicle. Step 6 if the vehicle has just started from the parked state
Proceed to 4K and display the parking mark and the normal running mark alternately at the current position of the other vehicle on the road map for 5 seconds. When there are a plurality of other vehicles, a mark is set according to the state of each other vehicle.

In this way, the state of parking, the state of being stuck in a traffic jam, the state of occurrence of an abnormality are detected based on the information about the other vehicle, and the position of the other vehicle is displayed with a mark corresponding to each state. Therefore, it is possible to easily confirm whether the other vehicle cannot move because it is parked, is stuck in a traffic jam, and cannot move due to an abnormality. In addition, when an abnormality has occurred, whether the vehicle can travel or is incapable of traveling is detected based on information about the other vehicle, and the position of the other vehicle is displayed with a mark according to the degree of the abnormality. Therefore, the occupant on the side of the own vehicle can know the degree of abnormality of the other vehicle, and decide an appropriate response on the side of the own vehicle, such as whether to join the vehicle to assist the other vehicle or to see the situation for a while. You can If an abnormality occurs in another vehicle, the details of the abnormality may be displayed.

-Seventh Embodiment of the Invention- FIG. 16 shows a configuration of a seventh embodiment. It should be noted that the same components as those in the configuration of the first embodiment shown in FIG. 1 are designated by the same reference numerals, and different points will be mainly described. In the seventh embodiment, an arithmetic circuit 160 is added to the first embodiment. The arithmetic circuit 160, based on the information about the own vehicle stored in the own vehicle information storage unit 131 and the information about the other vehicle stored in the other vehicle information storage unit 132, the distance between the own vehicle and the other vehicle. And the time taken for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle, and to investigate the condition of the route along which the preceding vehicle moved from the position of the following vehicle to the position of the preceding vehicle. The status of the travel route includes road traffic information obtained from VICS, the average vehicle speed of the travel route, and the like, and is information for determining whether or not the preceding vehicle has successfully traveled on the travel route. The display device 150 displays the position of the own vehicle and the position of the other vehicle on the road map, and the distance between the own vehicle and the other vehicle calculated by the arithmetic circuit 160 and the required travel time near the mark indicating the position of the other vehicle. And are displayed.

FIG. 17 is a flow chart showing the overall operation of the seventh embodiment. It should be noted that steps in which the same processing as that of the first embodiment shown in FIG. 2 is performed are given the same step numbers, and different points will be mainly described. The processing of steps 2, 4 and 6 is the same as the processing shown in FIGS. 3, 4 and 5 of the first embodiment, and the illustration and description thereof are omitted. In step 7A after exchanging information by communication with another vehicle, the processing shown in FIG. 18 is executed to calculate the relationship between the vehicles, that is, the distance and the traveling time. Then, in step 8, the process shown in FIG. 19 is executed to display the information about the own vehicle, the information about the other vehicle, and the relationship between the own vehicle and the other vehicle on the road map.

In step 71 of FIG. 18, it is confirmed whether or not there is data regarding another vehicle for which the calculation of the inter-vehicle distance and the traveling time has not been completed. If there is unprocessed other vehicle data, the routine proceeds to step 72, where it is checked whether the own vehicle is ahead. If the host vehicle is ahead, the host vehicle is set as the preceding vehicle and the other vehicle is set as the following vehicle in step 73. On the other hand, if the host vehicle is not ahead, the other vehicle is set as the preceding vehicle and the host vehicle is set as the following vehicle in step 74. In step 75, the distance between the preceding vehicle and the following vehicle is calculated and stored in a memory (not shown) inside the arithmetic circuit 160. In the following step 76, the data stored in the storage device 130 is searched for the data of the route traveled by the preceding vehicle from the position of the following vehicle to the position of the preceding vehicle.
If there is data of the moving route in step 77, the process proceeds to step 78, and if not, the process returns to step 71. If there is data on the moving route, in step 78, the time taken for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle is calculated and stored in the memory in the calculation circuit 160.

The information display processing of the seventh embodiment will be described with reference to FIG. It should be noted that steps that perform the same processing as the steps shown in FIG. 6 and FIG. 11 will be assigned the same step numbers and the description will focus on the differences. In step 91 after displaying the positions and traveling loci of other vehicles on the road map, it is confirmed whether or not there is distance data between vehicles in the memory of the arithmetic circuit 160. If there is distance data between vehicles, in step 92, the distance between vehicles is displayed near the mark indicating the position of another vehicle. Next, in step 93, it is confirmed whether or not there is traveling time data between vehicles in the memory of the arithmetic circuit 160. If there is traveling time data, step 9
At 4, the travel time between vehicles is displayed near the mark indicating the position of another vehicle. Then, in step 95, a mark indicating the position of the own vehicle is displayed at the current position of the own vehicle on the road map.

In this way, the distance between the own vehicle and another vehicle and the time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle are displayed.
You can easily check how far another vehicle is from your vehicle.

-Modification of Embodiment of Seventh Invention- When another vehicle is ahead, another vehicle information storage unit 13
From the information about the other vehicle stored in 2, the condition of the route in which the preceding other vehicle has moved from the position of the following own vehicle to the current position is searched, and the display form according to the condition of the movement route You may make it display the mark which shows the position of the own vehicle. For example, a mark indicating the position of the own vehicle is displayed in green when another vehicle smoothly travels along the moving route, and a mark indicating the position of the own vehicle is displayed in red when the moving route is congested. .

FIG. 20 is a flow chart showing the information display processing of this modification. Note that steps that perform the same processing as the steps shown in FIG. 6, FIG. 11 and FIG. In step 101 after displaying the inter-vehicle distance and the traveling time near the other vehicle mark on the road map, the preceding vehicle data, that is, the preceding other vehicle has moved from the position of the following own vehicle to the current position. Check if there is data on the status of the route. This data is retrieved in step 76 of FIG. 18 and stored in the memory of the arithmetic circuit 160. If there is preceding vehicle data, the process proceeds to step 102, and it is determined based on the preceding vehicle data whether the travel route is congested. This determination may be made based on the traffic jam information from the VICS, or may be made based on the average running speed obtained by obtaining the average running speed based on the distance of the travel route and the travel time. If the travel route is congested, step 103
Change the vehicle mark to a display form according to the situation of the travel route. For example, the mark color is set to red when traffic is congested and set to green when running smoothly.

As described above, based on the information about the own vehicle and the information about the other vehicle, the condition of the route in which the preceding vehicle has moved from the position of the following vehicle to the position of the preceding vehicle is investigated,
Since the position of the own vehicle is displayed in a display form according to the situation of the travel route, the situation of the route to the position of the preceding other vehicle can be confirmed at a glance and prompt action can be taken. It should be noted that the position of another vehicle may be displayed in a display form according to the situation of the travel route, or the route from the position of the following vehicle to the position of the preceding vehicle may be displayed in a display form according to the situation of the travel route. However, the same effect as above can be obtained.

-Other Modifications of Embodiment of Seventh Invention- In the above-described seventh embodiment, the inter-vehicle distance and the traveling time are displayed near the other vehicle mark. Alternatively, the own vehicle mark may be displayed in a display form corresponding to the travel time. For example, the distance between vehicles is 2 km
If it is below, the position of the vehicle is displayed with a blue mark, 2 to 5 km is green, 5 to 10 km is yellow, and 10 km or more is red. Further, for example, when another vehicle is ahead, if the time required for the other vehicle to move from the position of the own vehicle to the current position is 5 minutes or less, it is blue if it is 5 to 10 minutes and 10 to 30 if it is green. The position of the vehicle is displayed with a yellow mark for minutes and a red mark for 30 minutes or more.

Alternatively, the color may be displayed in the color having the higher degree of traffic congestion among the inter-vehicle distance and the travel time. Here, since units of distance and time are different, a common evaluation value is set for the relationship between these vehicles. For example, the distance is 2 km
The following and the time of 5 minutes or less are the same evaluation value 1 (blue),
The same evaluation value 2 for a distance of 2 to 5 km and a time of 5 to 10 minutes
(Green), the distance 5 to 10 km and the time 10 to 30 minutes are the same evaluation value 3 (yellow), and the distance 10 km or more and the time 30 minutes or more are the same evaluation value 4 (red). Then, the evaluation value based on the inter-vehicle distance and the evaluation value based on the traveling time are compared, the larger evaluation value is set, and the position of the host vehicle is displayed by the color mark of the evaluation value.

FIG. 21 is a flow chart showing the information display process of another modification. Note that steps that perform the same processing as the steps shown in FIG. 6, FIG. 11 and FIG. In step 111, the arithmetic circuit 160
Check if the distance data between vehicles is stored in the memory. If the vehicle-to-vehicle distance data is stored, the process proceeds to step 112, and an evaluation value of the vehicle-to-vehicle relationship is set according to the vehicle-to-vehicle distance. In the following step 113, it is confirmed whether or not the traveling time data between the vehicles is stored in the memory of the arithmetic circuit 160. If the traveling time data is stored, the process proceeds to step 114. In step 114, the evaluation value of the inter-vehicle relationship is set according to the traveling time between the vehicles. In step 115, the evaluation value based on the inter-vehicle distance is compared with the evaluation value based on the travel time. Set the vehicle mark color. On the contrary, when the evaluation value of the travel time is larger than the evaluation value of the inter-vehicle distance, the process proceeds to step 118, and the own vehicle mark color corresponding to the travel time between the vehicles is set.

If there is no distance data between vehicles, the traveling time data between vehicles is calculated in step 117 in the arithmetic circuit 160.
If it is stored in the memory, the process proceeds to step 118, and the own vehicle mark color corresponding to the traveling time between vehicles is set. If there is neither distance data between vehicles nor travel time data, proceed to step 119,
Set the standard own vehicle mark.

As described above, since the position of the own vehicle is displayed in the display form according to the distance between the vehicles and the traveling time, it is possible to check at a glance how far the vehicle is from other vehicles. In addition, in the above-described modification example, the own vehicle position is displayed in the display form corresponding to the distance between the vehicles and the traveling time, but the other vehicle position is displayed in the display form corresponding to the distance between the vehicles and the traveling time. You may do it. Even if the route in which the preceding vehicle has moved from the position of the following vehicle to the current position is displayed in a display form corresponding to the distance between the vehicles and the moving time, the same effect as described above can be obtained.

-Eighth Embodiment of the Invention- The relationship between the own vehicle and another vehicle may be investigated, and a warning may be given when the relationship between the vehicles exceeds a preset condition. The eighth embodiment shows an example in which a mark indicating the position of another vehicle is displayed in a blinking manner when the distance between the vehicles exceeds a preset distance. The configuration and part of the operation of the eighth embodiment are similar to those of the above-described seventh embodiment, and differences will be mainly described. FIG. 22 is a flowchart showing the overall operation of the eighth embodiment. Step 1A
In, the distance for evaluating the inter-vehicle distance is set. Then, in the information display processing of step 8, the actual inter-vehicle distance is compared with the set value, and the position of the other vehicle is displayed in a display form according to the comparison result.

According to the flowchart shown in FIG. 23, the eighth
The information display process of the embodiment will be described. In addition, the same step numbers are given to the steps that perform the same processing as the information display processing of each of the above-described embodiments, and the differences will be mainly described. In step 121, the arithmetic circuit 160
Check if the data regarding the distance between vehicles is stored in the memory. If there is inter-vehicle distance data, the process proceeds to step 122, and the inter-vehicle distance is compared with the set value. When the inter-vehicle distance is larger than the set value, the process proceeds to step 123, and the mark indicating the position of another vehicle is displayed in blinking. The display color of the other vehicle mark in this case may be a color according to the inter-vehicle distance as in the above-described seventh embodiment, or a special color may be set in advance. On the other hand, if the inter-vehicle distance is less than or equal to the set value, the routine proceeds to step 124, where the position of another vehicle is displayed in the mark color set in advance according to the inter-vehicle distance.

As described above, when the inter-vehicle distance is larger than the preset value, the position of the other vehicle is displayed in a blinking manner, so that the inter-vehicle distance becomes so large that some measures must be taken. Can be recognized. In the above embodiment, the position of the other vehicle is flashed to give a warning, but the position of the own vehicle may be displayed in a blinking manner, for example, "distance from other vehicle is 20 km or more" May be warned by voice.

-Embodiment of Ninth Invention- In the above-described eighth embodiment, an example is shown in which a warning is issued when the distance between vehicles exceeds a preset distance. A ninth embodiment will be described in which a warning is given when the time required for the vehicle to move from the position of the following vehicle to the current position exceeds a preset time. The configuration and part of the operation of the ninth embodiment are similar to those of the seventh and eighth embodiments described above, and differences will be mainly described. FIG. 24 is a flowchart showing the overall operation of the ninth embodiment. In step 1B, the time for evaluating the traveling time between vehicles is set. Then, in the information display process of step 8, the traveling time between vehicles is compared with the set value, and the position of another vehicle is displayed in a display form according to the comparison result.

According to the flowchart shown in FIG. 25, the ninth step
The information display process of the embodiment will be described. In addition, the same step numbers are given to the steps that perform the same processing as the information display processing of each of the above-described embodiments, and the differences will be mainly described. In step 131, the arithmetic circuit 160
It is checked whether or not the data regarding the time required for the preceding vehicle to move from the position of the following vehicle to the current position, that is, the moving time between the vehicles is stored in the memory.
If there is travel time data, proceed to step 132,
Compare the travel time with the set value. If the travel time is longer than the set value, the process proceeds to step 133, and the mark indicating the position of the other vehicle is displayed blinking. The display color of the other vehicle mark in this case may be a color according to the traveling time as in the above-described seventh embodiment, or a special color may be set in advance. On the other hand, if the traveling time between vehicles is less than or equal to the set value, the routine proceeds to step 134, where the position of another vehicle is displayed in the mark color set in advance according to the traveling time between vehicles.

As described above, when the traveling time between the vehicles is larger than the preset value, the position of the other vehicle is displayed in a blinking manner. You can recognize that you have grown up. In the above embodiment, the position of the other vehicle is flashed to give a warning, but the position of the own vehicle may be displayed in a blinking manner, for example, "the difference from the other vehicle is 20 minutes or more away". You may warn by voice like this.

-Embodiment 10 of the Invention- In the navigation screen displaying only the position of the vehicle on the road map, the position of the vehicle is displayed so that the position of the vehicle is slightly below the center of the screen. There are many. On the other hand, on the navigation screen that displays the positions of the own vehicle and other vehicles on the road map, the position of the own vehicle is set so that the positional relationship between the vehicles can be easily seen. If your vehicle is ahead of other vehicles, displaying the location of your vehicle below the center of the screen makes it difficult for other vehicles to see it. It is desirable to do. On the contrary, when the other vehicle precedes the own vehicle, the position of the own vehicle may be lower than the center of the screen. Then, the road map is updated so that the position of the own vehicle becomes a constant position on the screen even if the own vehicle moves. However, on the navigation screen that displays the positions of the own vehicle and other vehicles on the road map, the other vehicle is also moving, so if you set the display range of the road map centering on the own vehicle, the position of the other vehicle will be displayed on the road map. It may go out of the display range. Therefore, a tenth embodiment will be described in which the road map is automatically scaled so that both the own vehicle and another vehicle are displayed on the road map. Note that this tenth
The configuration and part of the operation of the above embodiment are the same as those of the above-described seventh embodiment, and differences will be mainly described.

FIG. 26 is a flow chart showing the information display processing of the tenth embodiment. After calculating the road map drawing range based on the position of the own vehicle, the process proceeds to step 141, and it is confirmed whether other vehicle data is stored in the other vehicle information storage unit 132. If there is other vehicle data, the process proceeds to step 142, and the arithmetic circuit 160 checks whether the position of the other vehicle is within the drawing range of the road map. If the position of the other vehicle is within the drawing range of the road map, the process proceeds to step 144, and if not, the process proceeds to step 143. If another vehicle is within the drawing range, step 14
In step 4, the road map of the range calculated in step 61 is displayed. On the other hand, if the position of the other vehicle is outside the drawing range of the road map, in step 143 the road map is reduced so that both the own vehicle and the other vehicle are within the drawing range. Then, the process proceeds to step 144, and the road map of the reduced drawing range is displayed. If there is other vehicle data in step 145, the process proceeds to step 146, and the other vehicle mark is displayed at the other vehicle position on the road map.

As described above, since the scale of the road map is automatically set so that the own vehicle and the other vehicle are always displayed on the road map, every time the other vehicle deviates from the displayed road map. The operation for changing the scale of the road map is not necessary, and the operability is improved.

-Embodiment 11 of the Invention- In each of the above-mentioned embodiments, an example is shown in which information is transmitted and received by communicating with another vehicle. However, an information station is installed outside and the information station is installed. An eleventh embodiment will be described in which information about another vehicle is obtained through the above. In this embodiment, description of the same configurations and operations as those of the above-described embodiments will be omitted, and differences will be mainly described. FIG. 27 shows the configuration of the eleventh embodiment. The information station 100a includes a communication interrupt generation circuit 120a.
And a storage device 130a and a communication circuit 140a. The communication interrupt generation circuit 120a has a communication interrupt monitoring unit 123a that generates a communication interrupt when there is a communication request from the vehicle. The storage device 130a stores the information about each vehicle in association with the telephone number of each vehicle. The communication circuit 140a includes a transmission unit 141a and a reception unit 142a, and the transmission unit 141a reads out information regarding each vehicle from the storage device 130a and transmits the information. In addition, the receiving unit 142
The a stores the received information about each vehicle in the storage device 130a in association with the telephone number of each vehicle.

FIG. 28 is a diagram showing the relationship between the information station 100a and a plurality of in-vehicle information presentation devices 100.
One of the plurality of in-vehicle information presentation devices 100 is an information presentation device of the own vehicle, and the other is an information presentation device of another vehicle. The transmission unit 141 of the information presentation device 100 of each vehicle transmits information about the vehicle to the information station 100a. The information station 100a receives the information about each vehicle transmitted from the information presentation device 100 of each vehicle.
The information is received by 42a, stored in the storage device 130a, and the information about each vehicle stored in the storage device 130a is transmitted via the transmission unit 141a. The information presentation device 100 of each vehicle stores the received information about the other vehicle in the other vehicle information storage unit 132 and displays it on the display device 150.

FIG. 29 is a flow chart showing the communication processing between the onboard information presentation device 100 and the information station 100a. The in-vehicle information presentation device 100 activates the communication circuit 140 in step 201, connects the communication line to the information station 100a, and requests communication. The information station 100a, in step 211, the communication interrupt monitoring unit 1
When the communication interrupt of the in-vehicle information presenting apparatus 100 is recognized by 23a, the reception unit 142a is interrupted. In step 212, the communication process with the in-vehicle information presentation device 100 is started, and in step 213, the communication line is connected to the in-vehicle information presentation device 1.
Connect to 00. In step 214, it is confirmed whether the communication line has been successfully connected to the vehicle-mounted information presenting apparatus 100. If the line connection is unsuccessful, the process is re-executed in the next communication in step 208.

On the other hand, similarly, in the in-vehicle information presentation device 100 as well, it is confirmed in step 202 whether or not the communication line with the information station 100a is successfully connected, and if the line connection is unsuccessful, the next step 208 is performed. Re-execute during communication. When the communication line with the information station 100a is successfully connected, the information about the own vehicle stored in the own vehicle information storage unit 131 is transmitted through the transmitting unit 141 in step 203. The information station 100a, in step 215, the in-vehicle information presentation device 10
The reception unit 142a receives the information about the vehicle of the current communication partner transmitted from 0, and the information about the other vehicle other than the current communication partner stored in the storage device 130a in step 216 is transmitted via the transmission unit 141a. Send.

The in-vehicle information presenting apparatus 100 executes step 20.
The information about the other vehicle transmitted from the information station 100a in 4 is received by the receiving unit 142, and the following step 20
The communication line is opened at 5. Then, in step 206, the information about the other vehicle is stored in the other vehicle information storage unit 132,
In step 207, the communication history is reset and the communication with the information station 100a ends. Information station 1
00a similarly opens the communication line in step 217,
The information about the vehicle of the current communication partner received from the on-vehicle information presentation device 100 in step 218 is stored in the storage device 130a.
To memorize. Then, in step 219, the communication history is reset and the communication with the in-vehicle information presenting apparatus 100 ends.
The information station 100a stores information about each vehicle in association with the telephone number of each vehicle. Then, at the time of communication with each vehicle, the telephone number is used to identify the information regarding the vehicle of the communication partner and the information regarding the vehicle other than the communication partner.

As described above, the information station for storing information about a plurality of vehicles is installed outside the vehicle, the information about the own vehicle is transmitted from the vehicle-mounted information presenting device to the information station, and stored in the information station. From the vehicle to the in-vehicle information presenting device, information about another vehicle is transmitted and stored in the in-vehicle information presenting device.
That is, the information presentation device of each vehicle obtains information about other vehicles via the external information station. As a result, it is possible to obtain information on many other vehicles in one communication, reduce the number of times of communication, and reduce the load of communication processing.

-Twelfth Embodiment of the Invention- In the eleventh embodiment described above, the information about the other vehicle is obtained via the information station outside the vehicle, but the information about the other vehicle is stored. A twelfth embodiment in which information about a plurality of other vehicles is stored in the vehicle information storage unit and which has a function of an external information station will be described.
In this embodiment, description of the same configurations and operations as those of the above-described embodiments will be omitted, and differences will be mainly described.

FIG. 30 is a functional block diagram showing the structure of the twelfth embodiment. Information presenting apparatus 10 of this embodiment
0b, the other vehicle information storage unit 132 of the storage device 130b.
b stores the information about the vehicle of the communication partner received from the vehicle of the communication partner and the information about the vehicle other than the communication partner (hereinafter referred to as the third vehicle). Of course, there may be multiple third vehicles. Also, the communication circuit 140b
Of the third vehicle stored in the other vehicle information storage unit 132b while transmitting the information about the own vehicle stored in the own vehicle information storage unit 131b during communication with the other vehicle. To send. further,
The receiving unit 142b of the communication circuit 140b receives information regarding the vehicle of the communication partner during communication with the other vehicle, and also receives information regarding the third vehicle stored in the vehicle of the communication partner, and stores the other vehicle information. It is stored in the unit 132b.

FIG. 31 is an explanatory diagram of the system of the twelfth embodiment. In the figure, the in-vehicle information presentation device 100 has the configuration shown in FIG. 1 or FIG. 16 or FIG. 27 described above, and does not have a function of storing information about the third vehicle. On the other hand, the in-vehicle information presentation device 100b has the configuration shown in FIG. 30 and has a function of storing information about the third vehicle. The information presenting apparatus 100b collects information about each vehicle when communicating with each information presenting apparatus 100, and stores the information in the other vehicle information storage unit 132. Then, the information about the third vehicle stored at the time of communication with each information presentation device 100 is transmitted to the information presentation device 100 of the communication partner vehicle. Therefore, the information presenting apparatus 100 can obtain the information about the vehicle equipped with the information presenting apparatus 100b of the communication partner by communicating with the information presenting apparatus 100b, and at the same time, the information presenting apparatus 100b has collected the third information. You can also get information about your vehicle. Of course, it is possible to communicate between the information presenting devices 100, but in that case, only information about the vehicle of the communication partner can be obtained.

FIG. 32 is a flow chart showing the operation when the information presenting apparatus 100b responds to the communication request from the information presenting apparatus 100. The information presenting apparatus 100 that does not have the function of storing the information about the third vehicle performs step 230.
In the information presenting apparatus 100 having the function of activating the communication circuit 140 and connecting the communication line to the information regarding the third vehicle in
b Connect to request communication. Information presentation device 100b
When the communication interrupt monitoring unit 123 recognizes the communication interrupt of the information presenting apparatus 100 in step 241, the receiving unit 1
Interrupt 42b. In step 242, the communication process with the information presentation device 100 is started, and in step 243, the communication line is connected to the information presentation device 100. Step 244
At, it is confirmed whether the information presenting apparatus 100 and the communication line are successfully connected. If the line connection is unsuccessful, the process is re-executed at the next communication in step 237.

On the other hand, also in the information presenting apparatus 100, it is similarly confirmed in step 231 whether or not the communication line with the information presenting apparatus 100b has been successfully connected. If the line connection is unsuccessful, the next step 237 Re-execute during communication. When the communication line with the information presenting apparatus 100b is successfully connected, the information about the own vehicle stored in the own vehicle information storage unit 131 in step 232 is transmitted by the transmission unit 1.
41 to send. The information presenting apparatus 100b receives the information about the vehicle of the current communication partner transmitted from the information presenting apparatus 100 in step 245 in the receiving unit 142b, and in the following step 246, the own vehicle information storage unit 131.
The information about the own vehicle stored in b is transmitted to the transmitting unit 141b.
Send from. Furthermore, in step 247, the information about the third vehicle stored in the other vehicle information storage unit 132b is transmitted from the transmission unit 141b.

The information presenting apparatus 100 receives the information about the vehicle (information about another vehicle when viewed from the information presenting apparatus 100) and the information about the third vehicle transmitted from the information presenting apparatus 100b in step 233 and the receiving section 142. Then, in step 2334, the communication line is opened. After that, in step 235, information regarding other vehicles including the third vehicle is stored in the other vehicle information storage unit 132, and in step 236, the communication history is reset and the information presenting apparatus 10 is reset.
The communication with 0b is terminated. Similarly, in the information presentation device 100b, the communication line is opened in step 248, and step 24
The information about the other vehicle received from the information presentation device 100 in 9 is stored in the storage unit 132b. And step 25
At 0, the communication history is reset and the communication with the information presenting apparatus 100 ends.

FIG. 33 is a flowchart showing the operation when the information presenting apparatus 100 responds to the communication request from the information presenting apparatus 100b. The information presenting apparatus 100b activates the communication circuit 140b in step 261, connects the communication line to the information presenting apparatus 100, and requests communication. When the information presenting apparatus 100 recognizes the communication interruption of the information presenting apparatus 100b by the communication interruption monitoring unit 123 in step 281, the information presenting apparatus 100 interrupts the receiving unit 142. In step 282, communication with the information presentation device 100b is started, and in step 283, the communication line is connected to the information presentation device 100b. In step 284, it is confirmed whether or not the information presentation device 100b and the communication line are successfully connected. If the line connection is unsuccessful, the process is re-executed in the next communication in step 270.

On the other hand, similarly in the information presenting apparatus 100b,
In step 263, it is confirmed whether or not the communication line with the information presenting apparatus 100 has been successfully connected. If the line connection is unsuccessful, the process is re-executed in the next communication in step 270. When the communication line with the information presenting apparatus 100 is successfully connected, the information about the own vehicle stored in the own vehicle information storage unit 131b in step 264 is transmitted by the transmission unit 1.
41b, and in the following step 265, the transmitting unit 141b transmits the information regarding the third vehicle stored in the other vehicle information storage unit 132b. The information presentation device 100 is
In step 285, the information regarding the vehicle (information regarding the other vehicle when viewed from the information presenting apparatus 100) and the information regarding the third vehicle transmitted from the information presenting apparatus 100b are received. In the following step 286, the transmission unit 141 transmits the information regarding the own vehicle stored in the own vehicle information storage unit 131.

The information presentation device 100b proceeds to step 266.
The information about the vehicle transmitted from the information presenting apparatus 100 (information about another vehicle when viewed from the information presenting apparatus 100b) is received. After opening the communication line in step 267, the information regarding the other vehicle received in step 268 is stored in the other vehicle information storage unit 132b. Further, in step 269, the communication history is reset and the communication processing is ended.
Similarly, the information presenting apparatus 100 opens the communication line in step 287, and stores information about another vehicle in the other vehicle information storage unit 132 in step 288. Then, in step 289, the communication history is reset and the communication process ends.

As described above, the information about the vehicle is stored each time communication is performed with each information presenting apparatus, and the information about the third vehicle is provided at the time of communication with each information presenting apparatus. The information regarding the third vehicle other than the communication partner can be obtained through the communication of, and the communication processing load can be reduced by reducing the number of times of communication. It should be noted that all vehicles may be provided with a function of collecting and providing information regarding the third vehicle.

-Embodiment 13 of the Invention- The information station of the eleventh embodiment described above is provided with a storage memory for area information, and the area such as the light guide, restaurant, entertainment facility, etc., where the information station is installed. A thirteenth embodiment will be described in which information is provided to the vehicle-mounted information presentation device. In this embodiment, description of the same configurations and operations as those of the above-described embodiments will be omitted, and differences will be mainly described. FIG. 34 is a functional block diagram showing the structure of the thirteenth embodiment. Information station 100c
The storage device 130c includes a regional information storage unit 133c,
Area information such as a light guide, a restaurant, and an entertainment facility in the area where the information station 100c is installed is stored.
During communication with the on-vehicle information presenting apparatus 100d, the transmitting unit 1 transmits the information about the other vehicle stored in the other vehicle information storage unit 132c and the area information stored in the area information storage unit 133c.
41c. In addition, the in-vehicle information presentation device 100d
The storage device 130d includes an area information storage unit 133d that stores area information, and stores the area information received by the receiving unit 141d from the information station 100c. Display device 1
50 displays the information about the own vehicle and the information about the other vehicle on the road map, and the area information storage unit 133d.
Display regional information for.

FIG. 35 is a flow chart showing the operation of the thirteenth embodiment. The in-vehicle information presentation device 100d is
In step 301, the communication circuit 140d is activated, the communication line is connected to the information station 100c, and communication is requested. The information station 100c proceeds to step 321.
With the communication interrupt monitoring unit 123b, the in-vehicle information presentation device 10
When the communication interrupt of 0d is recognized, the reception unit 142c is interrupted. In step 322, the in-vehicle information presentation device 1
The communication process with 00d is started, and in step 323, the communication line is connected to the in-vehicle information presenting apparatus 100d. Step 32
In step 4, it is confirmed whether the communication line is successfully connected to the in-vehicle information presentation device 100d, and if the line connection is unsuccessful, the process is re-executed at the next communication in step 310.

On the other hand, also in the in-vehicle information presentation device 100d, it is similarly confirmed in step 302 whether or not the communication line with the information station 100c has been successfully connected. Re-execute during communication. When the communication line with the information station 100c is successfully connected, the information about the own vehicle stored in the own vehicle information storage unit 131d is transmitted from the transmitting unit 141d in step 303. The information station 100c determines in step 325 that the in-vehicle information presentation device 10
The receiving unit 142c receives the information about the vehicle of the current communication partner, which is transmitted from 0d, and in Step 326.
Then, the information about the other vehicle stored in the other vehicle information storage unit 132c is transmitted from the transmission unit 141c. Further, in step 327, the area information stored in the area information storage unit 133c is transmitted from the transmission unit 141c.

The in-vehicle information presentation device 100d performs step 3
In 04, the information about the other vehicle transmitted from the information station 100c is received, and in the following step 305, the regional information transmitted from the information station 100c is received.
Then, in step 306, the communication line is opened, and the information about the other vehicle received in step 307 is stored in the other vehicle information storage unit 132d. Further, the area information received in step 308 is stored in the area information storage unit 133d. In step 309, the communication history is reset and the communication with the information station 100c ends. Information station 10
In step 0c, the communication line is opened in step 328, and in step 329, the information about the vehicle of the communication partner is stored in the other vehicle information storage unit 132c as the information about the other vehicle. Then, in step 330, the communication history is reset and the communication with the in-vehicle information presenting apparatus 100d ends.

FIG. 36 is a flow chart showing the information display processing of the thirteenth embodiment. After displaying the position of the other vehicle and the information about the other vehicle on the road map, step 34
At 1, it is confirmed whether or not the regional information is stored in the regional information storage unit 133d. If the area information is stored, the process proceeds to step 342 to check whether the area information is within the drawing range of the road map. The area information within the drawing range is displayed on the road map in step 343.

In this way, information about other vehicles is collected,
Since the area information is stored in the information station for supplying and the area information is provided when communicating with the in-vehicle information presenting device, the CD-R storing the area information is stored.
Even if there is no storage device such as OM, the latest area information can always be obtained.

In the configuration of each of the above embodiments, the own vehicle and peripheral information input circuit 110 serves as the own vehicle information input means,
The moving distance monitoring unit 122 functions as the moving distance detecting unit, the communication circuit 140 functions as the communicating unit, the display device 150 functions as the displaying unit, the route condition detecting unit and the warning unit, and the vehicle event monitoring unit 1
Reference numeral 21 denotes a situation change detecting means, and the information station 100.
a and 100c respectively constitute external storage devices.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a configuration of a first embodiment.

FIG. 2 is a flowchart showing the overall operation of the first embodiment.

FIG. 3 is a flowchart showing an information acquisition process regarding a vehicle of the first embodiment.

FIG. 4 is a flowchart showing communication interrupt processing of the first embodiment.

FIG. 5 is a flowchart showing an interrupt process according to a vehicle condition or a moving distance according to the first embodiment.

FIG. 6 is a flowchart showing an information display process of the first embodiment.

FIG. 7 is a diagram showing an example of a navigation screen according to the first embodiment.

FIG. 8 is a flowchart showing information display processing of the second embodiment.

FIG. 9 is a diagram showing an example of a navigation screen according to the second embodiment.

FIG. 10 is a diagram showing an example of a navigation screen according to the third embodiment.

FIG. 11 is a flowchart showing an information display process of the third embodiment.

FIG. 12 is a diagram showing an example of a navigation screen according to the fourth embodiment.

FIG. 13 is a flowchart showing an information display process of the fourth embodiment.

FIG. 14 is a flowchart showing an information display process of the fifth embodiment.

FIG. 15 is a flowchart showing an information display process of the sixth embodiment.

FIG. 16 is a functional block diagram showing a configuration of a seventh embodiment.

FIG. 17 is a flowchart showing the overall operation of the seventh embodiment.

FIG. 18 is a flowchart showing relational calculation between vehicles according to the seventh embodiment.

FIG. 19 is a flowchart showing an information display process of the seventh embodiment.

FIG. 20 is a flowchart showing a modified example of the information display process of the seventh embodiment.

FIG. 21 is a flowchart showing another modification of the information display processing of the seventh embodiment.

FIG. 22 is a flowchart showing the overall operation of the eighth embodiment.

FIG. 23 is a flowchart showing an information display process of the eighth embodiment.

FIG. 24 is a flowchart showing the overall operation of the ninth embodiment.

FIG. 25 is a flowchart showing an information display process of the ninth embodiment.

FIG. 26 is a flowchart showing information display processing of the tenth embodiment.

FIG. 27 is a functional block diagram showing the configuration of the eleventh embodiment.

FIG. 28 is a diagram showing the relationship between the vehicle-mounted information presentation device and the information station of the eleventh embodiment.

FIG. 29 is a flowchart showing a communication process between the on-vehicle information presenting device and the information station according to the eleventh embodiment.

FIG. 30 is a functional block diagram showing the configuration of the twelfth embodiment.

FIG. 31 is a diagram illustrating a system of a twelfth embodiment.

FIG. 32 is a flowchart showing the communication operation of the twelfth embodiment.

FIG. 33 is a flowchart showing another communication operation of the twelfth embodiment.

FIG. 34 is a functional block diagram showing the configuration of the thirteenth embodiment.

FIG. 35 is a flowchart showing the communication operation of the thirteenth embodiment.

FIG. 36 is a flowchart showing information display processing of the thirteenth embodiment.

[Explanation of symbols]

100, 100b, 100d In-vehicle information presentation device 100a, 100c Information station 110 Own vehicle and peripheral information input circuit 120, 120a, 120b Communication interrupt generation circuit 121 Vehicle event monitoring unit 122 Moving distance monitoring unit 123, 123a, 123b Communication interrupt monitoring Parts 130, 130a, 130b, 130c, 130d Storage device 131, 131b, 131d Own vehicle information storage unit 132, 132c, 132d Other vehicle information storage unit 133c, 133d Area information storage unit 140, 140a, 140b, 140c Communication circuit 141, 141a, 141b, 141c transmitter 142, 142a, 142b, 142c receiver 150 display device 160 arithmetic circuit

Claims (41)

[Claims] 1. Obtaining information about the own vehicle, communicating with the other vehicle every time the own vehicle moves a predetermined distance to obtain information about the other vehicle, and information about the own vehicle and the other information on a road map. An information presenting apparatus, which displays information about a vehicle. 2. The information on the own vehicle is obtained, and the information on the other vehicle is obtained by communicating with the other vehicle whenever the situation of the own vehicle changes, and the information on the own vehicle and the other information are displayed on a road map. An information presenting apparatus, which displays information about a vehicle. 3. Obtaining information about the own vehicle, communicating with the other vehicle every time there is a communication request from the other vehicle to obtain information about the other vehicle, and the information about the own vehicle and the other information on a road map. An information presenting apparatus, which displays information about a vehicle. 4. An own vehicle information acquisition means for acquiring information about the own vehicle, a moving distance detecting means for detecting a moving distance of the own vehicle, and another each time a predetermined moving distance is detected by the moving distance detecting means. Communication means for communicating with a vehicle and receiving information about another vehicle, and displaying on a road map the information about the own vehicle obtained by the own vehicle information obtaining means and the information about another vehicle received by the communication means An information presenting apparatus comprising: a display unit. 5. An own vehicle information obtaining means for obtaining information about the own vehicle, a situation change detecting means for detecting a situation change of the own vehicle based on the information obtained by the own vehicle information obtaining means, and the situation change detection. A communication means that communicates with other vehicles and receives information about other vehicles whenever a change in the situation of the own vehicle is detected by the means, and information about the own vehicle acquired by the means for acquiring the own vehicle information on the road map. An information presenting apparatus comprising: a display unit that displays information about another vehicle received by the communication unit. 6. A vehicle information acquisition means for obtaining information about the vehicle, a communication means for communicating with another vehicle each time there is a communication request from the other vehicle, and receiving information about the other vehicle, and a road map on the road map. An information presenting apparatus comprising: a display unit that displays information about the own vehicle acquired by the own vehicle information acquisition unit and information about another vehicle received by the communication unit. 7. The information presenting apparatus according to any one of claims 4 to 6, wherein the communication unit transmits information about the own vehicle when communicating with another vehicle. . 8. The information presenting apparatus according to claim 7, wherein the communication unit has another vehicle information storage unit that stores information about another vehicle, and the information about the other vehicle is sent each time communication is performed with the other vehicle. An information presenting device, characterized in that the information presenting device stores information in the other vehicle information storage means and transmits information about another vehicle other than the communication partner stored in the other vehicle information storage means. 9. An own vehicle information obtaining means for obtaining information about the own vehicle, a moving distance detecting means for detecting a moving distance of the own vehicle, and another whenever a predetermined moving distance is detected by the moving distance detecting means. Communication means that communicates with an external storage device that stores vehicle information, receives information about other vehicles and sends information about your vehicle, and the vehicle that you obtained by the vehicle information acquisition means on the road map. An information presenting apparatus comprising: a display unit that displays information about a vehicle and information about another vehicle received by the communication unit. 10. A vehicle information acquisition means for acquiring information about the vehicle, a situation change detection means for detecting a situation change of the vehicle based on the information obtained by the vehicle information acquisition means, and a situation change detection. Communication means for communicating with an external storage device that stores information about other vehicles whenever the situation change of the own vehicle is detected by the means, and receiving information about other vehicles and transmitting information about the own vehicle; An information presenting apparatus, comprising: a display unit for displaying information about the own vehicle acquired by the own vehicle information acquiring unit and information about another vehicle received by the communication unit on a map. 11. The information presenting apparatus according to claim 9 or 10, wherein the external storage device stores and stores the information about the vehicle transmitted from the vehicle of the current communication partner. An information presenting apparatus, which transmits information about a vehicle other than a communication partner of the above. 12. The information presenting apparatus according to claim 11, wherein the external storage device stores area information, the communication unit receives the area information from the external storage device, and the display unit is a road map. An information presenting apparatus, characterized in that it displays the area information received by the communication means. 13. The information presenting apparatus according to claim 4, wherein the display unit displays the position of the other vehicle in a display form according to the information about the other vehicle. Information presentation device. 14. The information presenting apparatus according to claim 13, wherein the display unit displays the position of the other vehicle in a display form according to the traveling speed of the other vehicle. 15. The information presenting apparatus according to claim 13, wherein the display unit displays the position of the other vehicle in a display form corresponding to the traveling direction of the other vehicle. 16. The information presenting apparatus according to claim 13, wherein the display unit displays the position of the other vehicle in a display form according to the type of road on which the other vehicle is traveling. Presentation device. 17. The information presenting apparatus according to claim 16, wherein the display means is for a predetermined time when another vehicle enters or exits a highway, a motorway or a toll road, and the like. An information presenting device characterized by blinking display of a vehicle position. 18. The information presenting apparatus according to claim 13, wherein the display means displays the position of the other vehicle when the other vehicle is parked in a different display form from when the other vehicle is parked. A characteristic information display device. 19. The information presenting apparatus according to claim 13, wherein the display means displays the position of the other vehicle in a different display form when the other vehicle is in a traffic jam than when it is in another state. An information presenting device characterized by displaying. 20. The information presenting apparatus according to claim 13, wherein the display means has different display modes for a normal traveling state of another vehicle, a parking state, and a state of being caught in a traffic jam. An information presenting device characterized by displaying the position of. 21. The information presenting apparatus according to claim 20, wherein the display means displays a display form indicating the parking state and a display indicating the normal traveling state for a predetermined time after the other vehicle has started from the parking state. An information presenting device characterized by alternately switching between forms. 22. The information presenting apparatus according to claim 20, wherein the display means shows the state of being jammed in the traffic jam for a predetermined time after the other vehicle is released from the state of being jammed in the traffic jam. An information presenting device, characterized in that a display form and a display form showing the normal traveling state are alternately switched. 23. The information presenting apparatus according to claim 13, wherein the display means displays the position of the other vehicle when the other vehicle is in an abnormal state in a display form different from that in the other state. An information presenting device characterized by: 24. The information presenting apparatus according to claim 23, wherein the display means displays the position of the other vehicle in different display forms depending on whether the traveling is possible or not possible. apparatus. 25. The information presenting apparatus according to claim 23, wherein the display means displays an abnormality content of another vehicle. 26. The information presenting apparatus according to any one of claims 4 to 12, wherein the display unit displays a traveling locus of the other vehicle in a display form according to information about the other vehicle. Information presentation device. 27. The information presenting apparatus according to claim 26, wherein the display means displays the traveling locus of the other vehicle in a display form according to the traveling speed of the other vehicle. 28. The information presenting apparatus according to claim 26, wherein, when the other vehicle travels on a highway, a motorway or a toll road, the running locus of those road sections is displayed in a blinking manner. An information presenting device characterized by: 29. The information presenting apparatus according to any one of claims 4 to 12, further comprising a computing unit that computes a relationship between the own vehicle and another vehicle, and the display unit is computed by the computing unit. An information presenting device, which displays the relationship between the own vehicle and another vehicle. 30. The information presenting apparatus according to claim 29, wherein the relationship between the own vehicle and the other vehicle includes a distance between the own vehicle and the other vehicle. 31. The information presenting apparatus according to claim 29, wherein the relationship between the own vehicle and the other vehicle includes a travel time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle. An information presenting device characterized by: 32. The information presenting apparatus according to any one of claims 29 to 31, wherein the display unit displays the position of the own vehicle or the other vehicle in a display form according to the relationship between the own vehicle and the other vehicle. An information presenting device characterized by displaying. 33. The information presenting apparatus according to any one of claims 29 to 31, wherein the display means defines a route along which the preceding vehicle has moved from the position of the following vehicle to the position of the preceding vehicle as the own vehicle. An information presenting device characterized by displaying in a display form according to the relationship of other vehicles. 34. The information presenting apparatus according to claim 4, wherein the preceding vehicle is the position of the following vehicle among the own vehicle and the other vehicle, based on the information about the own vehicle and the information about the other vehicle. From the position of the preceding vehicle to a position of a preceding vehicle, the display device includes a route status detecting unit, and the display unit displays the status of the moving route detected by the route status detecting unit. . 35. The information presenting apparatus according to claim 34, wherein the display unit displays the position of the own vehicle or another vehicle in a display form according to the situation of the travel route. . 36. The information presenting apparatus according to claim 34 or 35, wherein the display means displays a route from the position of the following vehicle to the position of the preceding vehicle in a display form according to the situation of the moving route. An information presenting device characterized by: 37. The information presenting apparatus according to claim 29, further comprising warning means for issuing a warning when the relationship between the own vehicle and another vehicle calculated by the calculating means exceeds a preset condition. 38. The information presenting apparatus according to claim 30, wherein the display means blinks the position of the own vehicle or the other vehicle when the distance between the own vehicle and the other vehicle exceeds a preset distance. An information presenting device characterized by: 39. The information presenting apparatus according to claim 31, wherein the display means has a travel time required for the preceding vehicle to move from the position of the following vehicle to the position of the preceding vehicle exceeding a preset time. 1. An information presenting device characterized by flashing and displaying the position of the own vehicle or another vehicle. 40. The information presenting device according to any one of claims 4 to 39, wherein the display unit reduces the scale of the road map so that the own vehicle and the other vehicles are always displayed on the road map. An information presenting device characterized by setting. 41. The information presenting apparatus according to claim 1, wherein the information regarding the own vehicle includes a situation of the own vehicle and the surrounding area of the own vehicle, and the information regarding the other vehicle includes the other vehicle. An information presenting apparatus including a situation around another vehicle.