JP4985521B2 - Stop history data storage system, storage method, and storage program - Google Patents

Description

  The present invention relates to a stop history data storage system that stores a stop history of a vehicle, a storage method, and a storage program.

2. Description of the Related Art Conventionally, a technique is known that uses information (signal information) indicating lighting timing of a traffic light in a system signal section to guide a vehicle speed that can proceed without stopping at the traffic light in the section.
JP 2005-115638 A

  In Patent Document 1, the vehicle speed at which the vehicle can travel without stopping at the traffic signal in the system signal section is guided based on the installation position of the traffic signal in the system signal section and information indicating the lighting timing of the traffic signal. By the way, in actual traveling, when stopping due to a stop-inducing feature (such as a traffic light) that induces the stop of the vehicle, depending on the stop position of the vehicle with respect to the stop-inducing feature, for example, the next stop-inducing feature Whether the vehicle stops or not is different. The signal information described in Patent Document 1 does not consider the relationship between the stop-induced feature and the stop position of the vehicle with respect to the feature in such actual traveling. Therefore, the signal information of Patent Document 1 cannot properly guide the traffic light.

  This invention is made | formed in view of the said subject, and it aims at providing the technique which accumulate | stores the stop log | history data regarding the area where multiple stop induction | guidance | derivation features exist in relation to the stop position of a vehicle.

  In order to achieve the above object, in the present invention, the operation information indicating the operation of the vehicle is acquired, and based on the operation information, the first stop information including the first stop position where the vehicle has stopped, And passing route information indicating a route from the first stop position to the second stop position at which the vehicle stops next to the first stop position, and stores the pass route information in association with the first stop position. To do. According to this configuration, referring to the information accumulated as described above, when stopping at a certain position, what kind of route has passed since stopping at that position and, as a result, stopping at which position Can be specified.

  The motion information acquisition unit only needs to acquire motion information indicating the motion of the vehicle. The operation information only needs to include at least information indicating the current position of the vehicle and information for determining whether or not the vehicle has stopped. In order to acquire such information, various known sensors and cameras can be used. For example, the current position of the vehicle is acquired by the sensor or camera, and the position is specified by a GPS signal or a locus on a map. The structure which acquires the information which shows vehicle speed with a vehicle speed sensor and a vehicle speed sensor, etc. are employable.

In the passage route information acquisition means, based on the operation information, the first stop information including the first stop position at which the vehicle has stopped, and the vehicle stops next to the first stop position from the first stop position. And passage route information indicating a route to the second stop position. The first stop information is information including at least a first stop position. The passing route information only needs to be able to specify the route that the vehicle has passed between the first stop position and the second stop position, and is information that relatively indicates the route that the vehicle has passed with reference to the first stop position. Alternatively, it may be information in which identifiers of nodes and links that have passed are listed in the order of passage.
The stop history storage means only needs to be able to store the passage route information in association with the first stop position. By accumulating in association with the first stop position, the passage route information can be specified based on the first stop position.

  In the present invention, the passage route information acquisition means may acquire passage signal intersection information indicating a passage signal intersection that the vehicle has passed without stopping from the first stop position to the second stop position, In this case, the stop history storage unit may store the passing signal intersection information as the passing route information in association with the first stop position. According to this configuration, after stopping at a certain position, it is possible to identify the path that passes through until the next stop based on the passing signal intersection information. The passing signal intersection information only needs to be able to identify the passing signal intersection, and may include, for example, the identifier of the node corresponding to the signal intersection, the position of the signal intersection, the number of passing signal intersections, and the like.

  Further, in the present invention, the stop history accumulation means may accumulate a traveling direction in which the vehicle has traveled at the passing signal intersection. That is, you may make it accumulate | store together the advancing direction, such as a right turn, a straight advance, and a left turn, in each passing signal intersection.

  Further, in the present invention, the first stop information may include a date and time when the vehicle stops at the first stop position, and the stop history accumulation means sets the passage route information to a time zone to which the date and time belongs. Further, it may be accumulated in association. According to this configuration, passage route information can be accumulated in association with the date and time and the first stop position. Therefore, by referring to the information accumulated and associated in this way, the passage route information corresponding to the first stop position can be specified according to the season or the time zone of the day.

  Note that, as in the present invention, the operation information indicating the operation of the vehicle is acquired, and based on the operation information, the first stop information including the first stop position where the vehicle has stopped, and the first stop position The passage route information indicating the route to the second stop position where the vehicle has stopped next to the first stop position is acquired, and the method of storing the passage route information in association with the first stop position is It can also be applied as a program or method for performing processing. In addition, the data storage system, method, and program as described above may be realized as a single device, may be realized using parts shared with the vehicle, or may be realized in the vehicle. It may be realized in cooperation with each unit that is not mounted, and includes various aspects. Further, some changes may be made as appropriate, such as a part of software and a part of hardware. Furthermore, the present invention can be realized as a recording medium for a program for controlling the stop history data storage system. Of course, the software recording medium may be a magnetic recording medium, a magneto-optical recording medium, or any recording medium to be developed in the future.

Here, embodiments of the present invention will be described in the following order.
(1) Configuration of the stop history data storage system:
(1-1) Configuration of navigation device:
(1-2) Configuration of road information management device:
(2) Passage route information acquisition process and stop history accumulation process:
(3) Usage example of the stop history database:
(4) Other embodiments:

(1) Configuration of the stop history data storage system:
(1-1) Configuration of navigation device:
FIG. 1 is a block diagram showing a configuration of a stop history data storage system including a navigation device 10 provided in a vehicle 50 and a road information management device 100 installed in a road information management center. The navigation device 10 is mounted on a vehicle 50 traveling on a road. The navigation device 10 includes a control unit 20 including a CPU, a RAM, a ROM, and the like, and a storage medium 30, and the storage medium 30 and the ROM Can be executed by the control unit 20. In the present embodiment, the navigation program 21 can be executed as one of the programs, and the navigation program 21 collects the stop position of the vehicle 50, passage route information, and the like, and transmits the collected information to the road information management apparatus 100.

  Therefore, the vehicle 50 includes a GPS receiver 40, a vehicle speed sensor 41, and a gyro sensor 42. The GPS receiver 40 receives radio waves from GPS satellites and outputs a signal for calculating the current position of the vehicle 50 and a signal indicating the current date and time via an interface (not shown). The control unit 20 acquires this signal and acquires the current position and date / time of the vehicle 50. The vehicle speed sensor 41 outputs a signal corresponding to the rotational speed of the wheels included in the vehicle 50. The control unit 20 acquires this signal via an interface (not shown) and acquires the speed of the vehicle 50. The gyro sensor 42 detects an angular acceleration for turning in the horizontal plane of the vehicle 50 and outputs a signal corresponding to the direction of the vehicle 50. The control unit 20 acquires this signal via an interface (not shown) and acquires the traveling direction of the vehicle 50. The vehicle speed sensor 41 and the gyro sensor 42 are used for correcting the current position of the vehicle 50 specified from the output signal of the GPS receiver 40. Further, the current position of the vehicle 50 is corrected as appropriate by checking with map information 30a described later.

  The navigation program 21 includes an operation information acquisition unit 21a, a passage route information acquisition unit 21b, and a communication control unit (not shown), and cooperates with the communication unit 22, the storage medium 30, the RAM in the control unit 20, and the like. Further, the storage medium 30 stores map information 30a for performing the above-described functions by the navigation program 21. The map information 30a includes node data indicating nodes set on the road on which the vehicle travels, shape interpolation point data for specifying the shape of the road between the nodes, link data indicating connection between the nodes, the road and its surroundings Is used for specifying the current position of the vehicle 50, searching for a route to the destination, route guidance to the destination, and the like.

  The operation information acquisition unit 21 a is a module that causes the control unit 20 to realize a function of acquiring information indicating the operation of the vehicle 50. The operation information includes at least information indicating the current position of the vehicle and information for determining whether or not the vehicle has stopped. In the present embodiment, the current position, vehicle speed, and traveling direction of the vehicle are acquired based on information acquired from the GPS receiver 40, the vehicle speed sensor 41, and the gyro sensor 42.

  Based on the motion information acquired by the motion information acquisition unit 21a, the passage route information acquisition unit 21b includes first stop information including the first stop position where the vehicle 50 has stopped, and the first stop position from the first stop position. This is a module that causes the control unit 20 to realize a function of acquiring passage route information indicating a route to the second stop position where the vehicle has stopped next. Here, the first stop position and the second stop position are referred to as the first stop position, the stop position corresponding to the previous stop in chronological order for two consecutive stops among the plurality of stops. The stop position corresponding to the stop is the second stop position. The first stop information is information including at least a first stop position. Information including at least the second stop position is referred to as second stop information. The passing route information only needs to be able to specify the route that the vehicle has passed between the first stop position and the second stop position, and is information that relatively indicates the route that the vehicle has passed with reference to the first stop position. Alternatively, it may be information in which identifiers of nodes and links that have passed are listed in the order of passage. In the present embodiment, the passage route information is an identifier of a signalized intersection that has passed between the first stop position and the second stop position. Of course, when passing through an intersection where no traffic lights are installed, the identifier of the intersection may be included.

  Here, whether or not the vehicle has stopped may be treated as, for example, that the vehicle has stopped when the vehicle speed falls below a certain speed, but in the present embodiment, the following condition is satisfied: Sometimes the vehicle is considered to have stopped. Specifically, the vehicle is considered to have stopped when the vehicle speed is lower than the second speed, which is higher than the first speed, for a predetermined time or longer from the time when the vehicle speed becomes equal to or lower than the first speed. Shall. This second speed is set to a vehicle speed that is slightly higher than the vehicle speed at the time of a creep phenomenon in a vehicle equipped with an automatic transmission, that is, a vehicle speed that starts to be depressed from a state where the accelerator pedal is not depressed.

  The vehicle 50 includes a communication unit 22 configured with a circuit for communicating with the road information management device 100, and the control unit 20 performs the above-described first process via the communication unit 22 by processing of a communication control unit (not shown). One stop information, passage route information, and the like can be transmitted to the road information management apparatus 100.

(1-2) Configuration of road information management device:
The road information management device 100 includes a control unit 200 including a CPU, RAM, ROM, and the like and a storage medium 300, and the control unit 200 can execute a program stored in the storage medium 300 or the ROM. In this embodiment, the road information management program 210 can be executed as one of the programs, and a stop history storage function is provided as one of the functions.

  The road information management device 100 receives information output by the plurality of vehicles 50. For this reason, the road information management device 100 includes a communication unit 220 configured by a circuit for communicating with the navigation device 10, and the control unit 20 performs the processing of the communication control unit (not shown) via the communication unit 220. The first stop information and passage route information transmitted by the vehicle 50 can be received.

The road information management program 210 includes the above-described communication control unit and the stop history storage unit 210a in order to receive transmission information from the vehicle 50 and store it in the storage medium 300. The stop history accumulation unit 210a is a module that causes the control unit 200 to realize a function of accumulating the passage route information in association with the first stop position based on information such as the first stop information and the passage route information transmitted from the vehicle 50. In the stop history database 300a of the storage medium 300, passage route information is accumulated in association with the first stop position.
The configuration of the stop history data storage system has been described above.

(2) Passage route information acquisition process and stop history accumulation process:
Next, a passage route information acquisition process and a stop history accumulation process performed in the above configuration will be described. FIG. 2 is a flowchart showing a passage route information acquisition process performed on the navigation device 10 side. This process is implemented when the control unit 20 executes the process of the passage route information acquisition unit 21b described above.

  First, based on the motion information of the vehicle 50 acquired by the motion information acquisition unit 21a, the control unit 20 determines whether or not the vehicle 50 has stopped (step S100). Specifically, after the current vehicle speed of the vehicle becomes equal to or lower than the first speed based on the operation information, a time that is a speed that does not exceed the second speed is measured, and whether or not the time is equal to or longer than a predetermined second. Determine whether. When it determines with the vehicle having stopped in step S100, the control part 20 acquires 1st stop information (step S105). That is, the current position of the vehicle 50 at this time corresponds to the first stop position. The control unit 20 temporarily stores the current position of the vehicle 50 in the RAM as the first stop position, and also stores the date and time at this time in the RAM. Further, the control unit 20 refers to the map information 30a and also acquires information indicating a signalized intersection (first signalized intersection) closest to the vehicle 50 that is a signalized intersection in front of the vehicle 50 at the first stop position. Is stored in RAM. The information indicating the first signalized intersection may be information that can identify the first signalized intersection. For example, an identifier of a node corresponding to the signalized intersection, a position of the signalized intersection, and the like may be assumed.

  Next, the control unit 20 acquires passage route information indicating a route through which the vehicle 50 passes based on information acquired by the process of the motion information acquisition unit 21a (step S110), and determines whether the vehicle 50 has stopped. (Step S115), the process of Step S110 is repeated until the vehicle 50 stops. Specifically, for example, every time the vehicle 50 passes without stopping at the signalized intersection, information indicating the signalized intersection (passed signal intersection) that has passed (passage signal intersection information) is temporarily stored in the RAM. The stored passing signal intersection information may include, for example, an identifier indicating the signal intersection, the position of the signal intersection, the number of passing signal intersections, and the like. In step S115, as described above, it is determined whether or not a predetermined time or more has elapsed since the current vehicle speed of the vehicle 50 fell below the first speed.

When it determines with the vehicle 50 having stopped in step S115, the control part 20 acquires 2nd stop information (step S120). That is, the current position of the vehicle 50 at this time corresponds to the second stop position. The control unit 20 temporarily stores the current position of the vehicle 50 as a second stop position in the RAM, and stores the date and time when the vehicle 50 stops at the second stop position in the RAM. In addition, the control unit 20 refers to the map information 30a and also acquires information indicating a signalized intersection (second signalized intersection) closest to the vehicle 50 at the second stop position and in front of the vehicle 50. Store in RAM. The information indicating the second signalized intersection may be information that can identify the second signalized intersection. For example, an identifier of a node corresponding to the signalized intersection, a position of the signalized intersection, and the like may be assumed.
Next, the control unit 20 transmits the first stop information and the passage route information to the road information management device 100 via the communication unit 22 (step S130), and ends the passage route information acquisition process.

If it is determined in step S115 that the process has stopped, the processes from step S105 are executed in parallel with the processes in and after step S120. As a result of the passage route information acquisition processing being executed in parallel, the second stop position of one set is treated as the first stop position of the next set. Passage path information from a stop to the next stop can be acquired.
As described above, the first stop information and the passage route information are transmitted to a management center from a plurality of vehicles equipped with a navigation device that executes the same processing as described above.

  FIG. 3 shows a stop history accumulation process executed on the road information management apparatus 100 side. This process is executed by the process of the stop history storage unit 210a. This process is activated every time communication from the vehicle 50 is started. The control unit 20 receives the first stop information and the passage route information transmitted from the vehicle 50 through the communication unit 220 by the processing of the communication control unit (step S200), and the second stop position from the first stop position. The passing route information indicating the route up to is stored in the stop history database 300a in association with the information indicating the first signalized intersection and the first stop position (step S205).

  A specific example of information accumulation in the stop history database 300a when the passage route information acquisition process and the stop history accumulation process are executed will be described with reference to FIGS. FIG. 4 shows an example of the configuration of data accumulated in the stop history database 300a after information is transmitted from a plurality of vehicles 50 to the road information management device 100 of the management center. In the present embodiment, the distance to the first signalized intersection is divided by a 10 m unit section (distance by distance), and the passage route information is accumulated in association with the section including the first stop position. Therefore, the control unit 20 derives the distance from the first stop position to the first signal intersection based on the received first stop information.

  As shown in FIG. 5, the vehicle 50 stopped at 0: 5 am on Friday, March 28, 2008, in a section of less than 10 m to signalized intersection A, and then stopped at signalized intersection B. When it is between signalized intersections C, as shown in FIG. 4, the first signalized intersection is “A”, season “spring”, day of week “weekdays”, time zone “0: 00 to 1: 00”, first In association with the distance “0 m to 10 m” from the stop position to the first signalized intersection, identifiers indicating the passing signal intersection “A” and the passing signal intersection “B” are accumulated.

  Thus, passing signal intersection information as passing route information is accumulated in association with the date and time when the vehicle stopped at the first stop position, and the first signal intersection and the section by distance from the first signal intersection to the first stop position. Therefore, by referring to the stop history database 300a, it is possible to specify which signalized intersection is passed after the vehicle stops at a certain position due to a signal at a certain date and time until the next stop. Can do. That is, the path that has passed from the first stop position to the second stop position can be specified by the passing signal intersection. By specifying the passage signal intersection, it can be estimated that the vehicle has stopped due to the signal intersection next to the last passage signal intersection. In addition, when it passes through the intersection without a signal between the 1st stop position and the 2nd stop position, you may accumulate | store the information which shows the said intersection similarly.

  In addition, for example, the vehicle 60 having the navigation device similar to the vehicle 50 stopped at 0:10 am on the same day in the section of 40 m or more and less than 50 m to the signalized intersection A, and then stopped at the signalized intersection A. Since there is no passing signal intersection between the first stop position and the second stop position, the first signal intersection is “A”, season “spring”, day of the week “weekdays” , Information indicating that there is no passing signal intersection is accumulated in association with the time zone “0:00 to 1:00:00” and the distance “40 m to 50 m” from the first stop position to the first signal intersection. In this case, the distance from the first stop position to the second stop position may be accumulated.

  In the present embodiment, when a plurality of passage route information having the same position as the first stop position in the same time zone is acquired, the plurality of passage route information may be accumulated. Alternatively, when a plurality of route information having the same position as the first stop position in the same time zone is acquired, representative passage route information is derived by statistical processing, and the derived representative passage is derived. The route information may be accumulated in association with the first stop position. As a result, by referring to the information accumulated in this way, when the vehicle stops at a certain position, where is the position that is likely to stop next as a result of passing through what route after stopping Can be estimated. Here, for example, an average value, a mode value, and a median value may be assumed as representative passage route information.

(3) Usage example of the stop history database:
As described above, what kind of route is passed after stopping at a certain position, and as a result, it is highly likely to stop at the next position. That is, in this embodiment, this is caused by a certain signalized intersection. When stopping at a position, the stop history database 300a can be used for the purpose of estimating what route will be passed after the stop and, as a result, at which signalized intersection is likely to stop. .

  The stop history database 300a in which the information is stored in this way can be distributed to, for example, a navigation device and used for route guidance by the navigation device. More specifically, for example, when a vehicle equipped with this navigation device stops at a position of 0 m to 10 m up to the signalized intersection A, referring to the stop history database 300a, a guidance route after passing through the signalized intersection A, It is determined whether or not the route indicated by the passing route information stored as the first stop position matches, and if so, the name of the signalized intersection that is likely to stop next is voice-guided You may make it carry out, and you may make it carry out next the voice guidance to the effect that it is highly likely that it will stop at the (number of passing signal intersection + 1) signal. Further, for example, the signalized intersection may be highlighted on a map displayed on the display of the navigation device. For example, in the dynamic route search, the passing cost of the passing signal intersection may be set to 0 for the passing signal intersection. Further, for example, when it is estimated that there is a high possibility of stopping twice at the same signalized intersection, the passing cost of the signalized intersection may be doubled than the passing cost of a normal signalized intersection.

(4) Other embodiments:
The above embodiment is an example for carrying out the present invention, and obtains operation information indicating the operation of the vehicle, and first stop information including the first stop position at which the vehicle stops based on the operation information. And passage route information indicating a route from the first stop position to the second stop position where the vehicle has stopped next to the first stop position, and obtaining the passage route information as the first stop position. Various other embodiments can be adopted as long as they are stored in association with each other.

  In the above embodiment, the first stop position information and the passage route information collected by the plurality of vehicles 50 are transmitted to the management center, and the road information management device 100 of the management center accumulates the passage route information in association with the first stop position information. Although the structure to perform was demonstrated, the structure which completes operation information acquisition, passage route information acquisition, and stop log | history accumulation | storage on the vehicle 50 side may be sufficient, for example. Further, for example, the road information management device 100 side may receive the operation information transmitted from the vehicle 50 side (operation information acquisition), and the road information management device 100 side may acquire passage route information and accumulate stop history. . Further, the distance from the first signal intersection to the first stop position and the distance from the second signal intersection to the second stop position may be derived on the vehicle 50 side and transmitted to the management center. In that case, the distance from the second signal intersection to the second stop position may be accumulated together with the passing signal intersection information in association with the distance from the first signal intersection and the intersection to the first stop position.

  Further, for example, in the above embodiment, the configuration in which the passage route information is accumulated in association with the section by distance from the first signalized intersection to the first stop position, but of course the passage route information is associated with the first stop position itself. You may make it accumulate | store. For example, as shown in FIG. 6, after stopping at the position of (X, Y), when passing through the signalized intersections E, A, B, and C and stopping between the signalized intersection C and the signalized intersection D, FIG. As shown in FIG. 4, identifiers indicating passing signal intersections (E, A, B, C) may be stored in association with the first stop position (X, Y).

Further, for example, in association with the first stop position and the first signalized intersection, passage route information that indicates a passage route relative to the first stop position may be accumulated. For example, in the case of the example of FIG. 6, as shown in FIG. 7B, the number of passing signal intersections (four) and the passing signal intersections are associated with the first stop position (X, Y) and the signal intersection E. It is also possible to store the traveling direction in which the vehicle has traveled (the second turn right, otherwise go straight). When the stop history database in which information is stored in this way stops at a certain position due to a certain signalized intersection, it passes through what route after stopping and as a result, stops at which signalized intersection next. It can be used for the purpose of estimating whether the possibility is high.
In the above embodiment, the signalized intersection is described as an example of the stop-inducing feature, but a crossing may be applied as the stop-inducing feature.

It is a block diagram of a stop history data storage system. It is a flowchart which shows a passage route information acquisition process. It is a flowchart which shows a stop log | history accumulation process. It is a schematic diagram which shows the structure of the data of a stop history database. It is a schematic diagram which shows the example of a 1st stop position and a 2nd stop position. It is a schematic diagram which shows the example of a 1st stop position and a 2nd stop position. (7A) and (7B) are schematic diagrams showing the structure of a stop history database.

Explanation of symbols

  10: navigation device, 20: control unit, 21: navigation program, 21a: operation information acquisition unit, 21b: passage route information acquisition unit, 22: communication unit, 30: storage medium, 30a: map information, 40: GPS reception unit 41: vehicle speed sensor, 42: gyro sensor, 50: vehicle, 60: vehicle, 100: road information management device, 200: control unit, 210: road information management program, 210a: stop history storage unit, 220: communication unit, 300: storage medium, 300a: stop history database.

Claims (7)

Operation information acquisition means for acquiring operation information indicating the current position and vehicle speed of the vehicle by a computer ;
First stop including information indicating a first stop position where the vehicle has stopped based on the operation information and information indicating a first signal intersection closest to the vehicle in front of the vehicle at the first stop position Information, a route from the first stop position to the second stop position where the vehicle stops next to the first stop position, and a second signal closest to the vehicle in front of the vehicle at the second stop position Passage route information acquisition means for acquiring passage route information indicating an intersection by a computer ;
Stop history storage means for storing the passage route information in a storage medium by a computer in association with a distance from the first stop position to the first signal intersection ;
A stop history data storage system comprising: The passage route information acquisition means acquires passage signal intersection information indicating a passage signal intersection that the vehicle has passed without stopping from the first stop position to the second stop position,
The stop history storage means stores the passing signal intersection information as the passing route information in association with a distance from the first stop position to the first signal intersection ,
The stop history data storage system according to claim 1. The stop history accumulation means accumulates a traveling direction in which the vehicle has traveled at the passing signal intersection.
The stop history data storage system according to claim 2. The first stop information includes a date and time when the vehicle stopped at the first stop position,
The stop history accumulation means accumulates the passage route information in further association with a time zone to which the date and time belongs.
The stop log | history data storage system in any one of Claims 1-3. The operation information acquisition means and the passage route information acquisition means are provided in a navigation device provided in the vehicle, and the stop history storage means is provided in a road information management device communicating with the navigation device,
The passage route information acquisition means transmits the first stop information and the passage route information to the road information management device when the vehicle stops at the second stop position.
The stop log | history data storage system in any one of Claims 1-4. An operation information acquisition step of acquiring operation information indicating the current position of the vehicle and the vehicle speed ;
First stop including information indicating a first stop position where the vehicle has stopped based on the operation information and information indicating a first signal intersection closest to the vehicle in front of the vehicle at the first stop position Information, a route from the first stop position to the second stop position where the vehicle stops next to the first stop position, and a second signal closest to the vehicle in front of the vehicle at the second stop position A passing route information acquisition step for acquiring passing route information indicating an intersection; and
A stop history storage step of storing the passage route information in a storage medium in association with a distance from the first stop position to the first signal intersection ;
Stop history data storage method performed by a computer . An operation information acquisition function for acquiring operation information indicating the current position and vehicle speed of the vehicle ;
First stop including information indicating a first stop position where the vehicle has stopped based on the operation information and information indicating a first signal intersection closest to the vehicle in front of the vehicle at the first stop position Information, a route from the first stop position to the second stop position where the vehicle stops next to the first stop position, and a second signal closest to the vehicle in front of the vehicle at the second stop position A passing route information acquisition function for acquiring passing route information indicating an intersection ;
A stop history storage function for storing the passage route information in a storage medium in association with a distance from the first stop position to the first signal intersection ;
Stop history data storage program that allows a computer to realize

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