JP4985520B2 - 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 first stop information including the first stop position at which the vehicle has stopped and the second stop position including the second stop position at which the vehicle has stopped next to the first stop position. And obtains group information consisting of stop information and, based on the group information, stores information for specifying the road section including the second stop position in association with the first stop position. . According to this configuration, after stopping at the first stop position, the second stop position stopped next can be specified with reference to the information accumulated as described above.

  The motion information acquisition unit only needs to acquire motion information indicating the motion of the vehicle. 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 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 stop history acquisition means, based on the operation information, the first stop information including the first stop position where the vehicle has stopped and the second stop position including the second stop position where the vehicle has stopped next to the first stop position. The combination information consisting of the stop information is acquired. The first stop information is information including at least a first stop position, and the second stop information is information including at least a second stop position. The first stop information and the second stop information corresponding to the two stoppages that have been continuously stopped are referred to as a set of set information.

  In the stop history accumulating means, based on the set information, specifying information for specifying a road section including the second stop position is stored in association with the first stop position. The identification information may be information that can identify the road section including the second stop position by the information, and may be the position (coordinates) of the second stop position itself, for example, It may be information indicating a link including a position, or information indicating a node at the start point or end point of the link. Moreover, the information which shows the node of the start point or end point of the road section (section which can become two or more links) which includes the said 2nd stop position and makes both ends into a signalized intersection may be sufficient.

  In the present invention, the second stop information may include information indicating a second signal intersection closest to the vehicle in front of the vehicle at the second stop position. Information indicating the second signalized intersection as the specifying information may be accumulated in association with the first stop position. According to this configuration, it is possible to accumulate information indicating a signalized intersection that is in front of the second stop position and is closest to the second stop position in association with the first stop position. Therefore, by referring to the information stored in association with each other in this way, it is possible to specify which signal caused the vehicle to stop after the vehicle stopped at a certain position. 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.

  Further, in the present invention, the first stop information may include information indicating a first signal intersection closest to the vehicle in front of the vehicle at the first stop position. In this case, the stop history accumulation means May store information indicating the second signalized intersection in association with information indicating the first signalized intersection and the first stop position. According to this configuration, the information indicating the first signalized intersection and the information indicating the second signalized intersection can be stored in association with the first stop position. Therefore, by referring to the information accumulated and associated in this way, it is possible to specify which signal caused the vehicle to stop after the vehicle has stopped at a certain position due to a certain signal. it can. The information indicating the first signalized intersection only needs to be able to identify the signalized intersection closest to the first stop position in front of the first stop position based on the traveling direction of the vehicle. For example, the node corresponding to the signalized intersection Or the location of the signalized intersection itself. The stop history accumulating means may derive the distance between the first signal intersection and the first stop position using the information indicating the first signal intersection, and the first signal intersection and the distance. Information indicating the second signalized intersection may be accumulated in association with each other. Further, regarding the second stop position, a distance from the second signal intersection to the second stop position may be derived, and the distance may be accumulated together with information indicating the second signal intersection.

  Further, in the present invention, the first stop information may include a date and time when the vehicle stopped at the first stop position. In this case, the stop history storage means sets the specifying information as the time to which the date and time belongs. You may accumulate in further association with a belt. According to this configuration, it is possible to store the specifying information in association with the date and time and the first stop position, or the information indicating the date and time, the first stop position, and the first signalized intersection. Therefore, by referring to the information accumulated and associated in this way, it is possible to acquire information for identification according to the season or the time zone of the day.

  Furthermore, in the present invention, the stop history acquisition means may acquire information indicating a passing signal intersection that the vehicle has passed without stopping between the first stop position and the second stop position. In this case, the stop history storage means may store the number of signalized intersections that have passed in association with the first stop position. According to this configuration, the number of passing signal intersections can be accumulated together with the specifying information. Therefore, by referring to the accumulated information, it is possible to specify how many signalized intersections have passed after the vehicle stops at a certain position and then stops.

  Further, in the present invention, when the plurality of sets of group information having the predetermined position as the first stop position is acquired, the stop history accumulation unit is representative of the specifying information in each of the plurality of sets of group information. Specific identification information may be stored in association with the predetermined position. According to this configuration, after collecting a plurality of sets of group information, representative identification information is derived by statistical processing, and the derived typical identification information is stored in association with the first stop position. can do. As a result, by referring to the information accumulated in this way, when the vehicle stops at a predetermined position, it is possible to specify which position is most likely to stop next. Here, as typical information for identification, for example, an average value, a mode value, a median value, or the like may be assumed.

  As in the present invention, the first stop information including the first stop position where the vehicle has stopped and the second stop information including the second stop position where the vehicle has stopped next to the first stop position. The method for acquiring the set information and storing information for specifying the road section including the second stop position in association with the first stop position based on the set information It is also applicable as a program or method for performing the above. 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) Stop history 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 stop history of the vehicle 50 is collected by the navigation program 21 and transmitted to the road information management device 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 stop history 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 and vehicle speed 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 operation information, the stop history acquisition unit 21b includes first stop information including a first stop position at which the vehicle has stopped, and a second stop position at which the vehicle has stopped next to the first stop position. This is a module that causes the control unit 20 to realize a function of acquiring set information including stop information. Here, the first stop position and the second stop position are referred to as a first stop position, which is a stop position corresponding to a previous stop in time series for two consecutive stops among a plurality of stops. Specifically, the stop position corresponding to the later stop is the second stop position. The first stop information is information including at least a first stop position, and the second stop information is information including at least a second stop position. The first stop information and the second stop information corresponding to the two stoppages that have been continuously stopped are referred to as a set of set information. Moreover, in this embodiment, the stop log | history acquisition part 21b also has a function which acquires the information which shows the passing signal intersection which the vehicle 50 passed without stopping between a 1st stop position and a 2nd stop position. Yes.

  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 deemed to have stopped when the vehicle speed has been lower than the second speed, which is greater than the first speed, for a predetermined time or longer after the vehicle speed has fallen below the first speed. And 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 by a circuit for communicating with the road information management device 100, and the control unit 20 performs the above-described grouping via the communication unit 22 by processing of a communication control unit (not shown). Information, the number of passing signal intersections, and the like can be transmitted to the road information management device 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. 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. Based on the information transmitted from the vehicle 50, the stop history accumulation unit 210a controls a function for accumulating identification information for identifying a road section including the second stop position in association with the first stop position. This module is realized by the unit 200. In the stop history database 300a of the storage medium 300, identification information is stored in association with the first stop position by a stop history storage process described later.
The configuration of the stop history data storage system has been described above.

(2) Stop history acquisition process and stop history accumulation process:
Next, a stop history acquisition process and a stop history accumulation process performed in the above configuration will be described. FIG. 2 is a flowchart showing a stop history acquisition process performed on the navigation device 10 side. This process is implemented by the control unit 20 executing the process of the stop history acquisition unit 21b described above. In the present embodiment, it is assumed that a collection target road section that is a target for collecting the stop history is determined in advance, and the vehicle 50 is traveling on the collection target road section.

  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 information on a road on which the vehicle 50 travels after passing the first stop position by processing of the operation 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, whenever the vehicle 50 passes without stopping at the signalized intersection, information indicating the signaled intersection that has passed (passing signal intersection) is temporarily stored in the RAM. The information indicating the passing signal intersection stored may be, for example, the identifier of the intersection, the position of the intersection, or 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 acquires the number of passing signal intersections between the first stop position and the second stop position (step S125). Specifically, the number of pieces of information indicating the passing signal intersection stored in the RAM in step S110 is acquired and stored in the RAM. Next, the control unit 20 transmits a set of set information and the number of passing signal intersections between the first stop position and the second stop position corresponding to the set information via the communication unit 22. It transmits to the management apparatus 100 (step S130), and a stop history acquisition process is complete | finished.

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 described above, the stop history acquisition processing on the navigation device side is executed in parallel, so that the second stop information constituting the set information of a certain group becomes the first stop information of the next set of set information. In other words, it means that a second stop position of one set corresponds to the first stop position of the next set. The number of corresponding passing signal intersections can be acquired.
As described above, the group information and the number of passing signal intersections are transmitted to the management center from a plurality of vehicles equipped with navigation devices that execute 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 set information transmitted from the vehicle 50 and the number of passing signal intersections corresponding to the set information via the communication unit 220 by the processing of the communication control unit (step S200). Based on the received information, identification information for identifying a road section including the second stop position 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 stop history 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 identification information is stored 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 signalized intersection based on the received set information. The information for identification is information that can identify a road section including the second stop position based on the information, and in the present embodiment, the identifier of the second signalized intersection is accumulated as the information for identification. Other specific information may be, for example, the position (coordinates) of the second stop position itself, information indicating a link including the second stop position, or the start point or end point of the link. It may be information indicating the node. Moreover, the information which shows the node of the start point or end point of the road section (section which can become two or more links) which includes the said 2nd stop position and makes both ends into a signalized intersection is sufficient.

  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, an identifier indicating “intersection C” is stored as identification information. In the stop history database 300a, the number of signalized intersections that have passed is further stored in association with the first stop position. In FIG. 4, the number indicated by (passing signal :) is the number of passing signal intersections. (Passing signal: 2) indicates that after stopping before signal intersection A and restarting, two signal intersections A and B are passed.

  Thus, the information indicating the second signal intersection as the information for identification is the date and time when the first stop position was stopped, the first signal intersection, and the section by distance from the first signal intersection to the first stop position, By referring to this stop history database, the next stop signal caused the vehicle to stop after a certain signal in the road section to be collected at a certain date and time. Can be specified. Also, since the number of passing signal intersections is also accumulated, it is necessary to identify the number of signalized intersections after the vehicle stops due to a certain signal and then stops due to the next signal Can do. The distance from the second signal intersection to the second stop position may be derived based on the received set information, and may be accumulated together with the number of second signal intersections and passing signal intersections.

  For example, as shown in FIG. 5, a vehicle 60 equipped with a navigation device similar to the vehicle 50 stopped at 0:10 am on the same day in a section of 40 m or more and less than 50 m to the signalized intersection A, and then stopped. Is a section of 10 m or more and less than 20 m from signalized intersection A, the first signalized intersection is “A”, season “spring”, day of week “weekday”, time zone “0:00”, as in the previous example. The identifier of “intersection A” is accumulated in association with the distance “40 to 50 m” from the first stop position to the first signalized intersection. In this case, since the first signal intersection and the second signal intersection are the same, the number of passing signal intersections is 0, and the distance to the second signal intersection (signal intersection A) is accumulated.

  In the present embodiment, when a plurality of sets of group information having a predetermined position as the first stop position is acquired, representative specifying information among the specifying information in each of the plurality of sets of group information May be stored in association with the predetermined position. In this case, after collecting multiple sets of group information, representative identification information is derived by statistical processing, and the derived typical identification information is stored in association with the first stop position. Can do. As a result, by referring to the information accumulated in this way, when the vehicle stops at a predetermined position, it is possible to estimate a position that is likely to stop next. Here, as typical information for identification, for example, an average value, a mode value, a median value, or the like may be assumed.

(3) Usage example of the stop history database:
As described above, this stop history database 300a is used for the purpose of estimating which position is likely to stop next, that is, in which signal crossing is likely to stop next in this embodiment. Can be used. For example, the stop history database 300a can be distributed to the navigation device and used for route guidance by the navigation device. More specifically, for example, when a vehicle equipped with the navigation device (when the collection target road section is included in the guide route) stops at the signalized intersection A in the collection target road section, the stop history data is Referring to, the name of the signalized intersection that is likely to stop next may be voice-guided, and the next (number of passing signal intersections + 1) is likely to stop at the signal Voice guidance may be provided. 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, when the vehicle stops at a certain position, the passing cost of the passing signal intersection is set to 0 with respect to the passing signal intersection that is likely to stop next. May be. 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. Based on the operation information indicating the operation of the vehicle, the first stop information including the first stop position at which the vehicle has stopped, and the first stop position. Second set information including a second stop position including the second stop position where the vehicle has stopped, and for identifying a road section including the second stop position based on the set information. Various other embodiments can be adopted as long as the identification information is stored in association with the first stop position.

  In the above embodiment, a configuration has been described in which stop histories collected by a plurality of vehicles 50 are transmitted to the management center, and the road information management device 100 of the management center accumulates the stop histories. It may be configured to complete acquisition, stop history acquisition, and stop history accumulation. 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 the stop history and store the 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.

  Further, in the above-described embodiment, the configuration in which the information indicating the first signal intersection and the information indicating the second signal intersection are stored in association with the first stop position has been described. You may make it accumulate | store a stop position. According to this configuration, referring to the accumulated information, when stopping at the first stop position, it is possible to identify the second stop position that may stop next. Information indicating the second intersection may be accumulated in association with the first stop position. According to this configuration, it is possible to accumulate information indicating a signalized intersection that is in front of the second stop position and is closest to the second stop position in association with the first stop position. Therefore, by referring to the information stored in association with each other in this way, it is possible to specify which signal caused the vehicle to stop after the vehicle stopped at a certain position.

Further, for example, in the stop history storage means, when the common identification information is associated with two different first stop positions, the common identification information is transferred between the two different first stop positions. You may accumulate in relation to each position. For example, as shown in FIG. 6, it is assumed that after stopping in a section of 0 m or more and less than 10 until signalized intersection A, information that the vehicle has stopped between signalized intersection C and signalized intersection B is received from vehicle 50. Further, it is assumed that information indicating that the vehicle has stopped between the signalized intersection C and the signalized intersection B is received from the vehicle 60 in the same time zone, after stopping in the section of 40 m or more and less than 50 m until the signalized intersection A. In that case, the signal intersection C may be stored in association with the signal intersection A as the second signal intersection in the same manner as the second signal intersection in the section from 10 m to less than 20 m, the section from 20 m to 30 m, and the section from 30 m to less than 40 m. Even if the group information transmitted from the vehicle cannot be sufficiently collected for the section to be accumulated, it is possible to accumulate the probable information by interpolation as described above.
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 stop log | history 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.

Explanation of symbols

  10: navigation device, 20: control unit, 21: navigation program, 21a: operation information acquisition unit, 21b: stop history 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, A: signalized intersection, B: signalized intersection, C: signalized intersection.

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, information indicating a second stop position at which the vehicle has stopped next to the first stop position, and information indicating a second signal intersection closest to the vehicle in front of the vehicle at the second stop position. Second stop information including, stop history acquisition means for acquiring set information consisting of the computer ,
Based on the set information, stop history storage means for storing information for specifying the second signal intersection in association with a distance from the first stop position to the first signal intersection in a storage medium by a computer ;
A stop history data storage system comprising: The first stop information includes a date and time when the vehicle stopped at the first stop position,
The stop history storage means stores the specifying information in further association with the time zone to which the date and time belongs.
The stop history data storage system according to claim 1. The stop history acquisition means acquires information indicating a passing signal intersection that the vehicle has passed without stopping between the first stop position and the second stop position;
The stop history accumulation means accumulates the number of passing signal intersections in association with the 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 unit, when a plurality of sets of the set information to the first stop position a predetermined position is acquired, representative certain of the specific information in each of the plurality of sets of said set information Information is stored in association with the distance between the predetermined position and the first signalized intersection .
The stop log | history data storage system in any one of Claims 1-3. The operation information acquisition means and the stop history 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 that communicates with the navigation device,
The stop history acquisition means transmits the set 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, information indicating a second stop position at which the vehicle has stopped next to the first stop position, and information indicating a second signal intersection closest to the vehicle in front of the vehicle at the second stop position. Including a second stop information, and a stop history acquisition step of acquiring set information consisting of:
Based on the set information, a stop history accumulating step for accumulating in the storage medium the information for identification indicating the second signal intersection in association with the 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, information indicating a second stop position at which the vehicle has stopped next to the first stop position, and information indicating a second signal intersection closest to the vehicle in front of the vehicle at the second stop position. Second stop information including , a stop history acquisition function for acquiring set information consisting of,
Based on the set information, a stop history accumulation function that accumulates information for specifying the second signal intersection 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

Images