JP7291066B2 - Information processing device, information processing method and information processing program - Google Patents

Description

The present invention relates to an information processing device, an information processing method, and an information processing program.

Conventionally, there is a technique for specifying a lane in which a vehicle travels. The technology described in Patent Literature 1 identifies the intersection into which the vehicle is entering based on the position information of the vehicle, and determines the lane (left turn lane, straight ahead) set on the approach road to the intersection based on the traveling speed of the vehicle. lane and right turn lane). In addition, the technique described in Patent Document 1, when the lane in which the vehicle is traveling is specified, based on the signal information regarding the signal of the intersection, for example, the vehicle can pass through the intersection before the signal turns red. or other driving assistance.

JP 2017-058774 A

As described above, Patent Literature 1 is a technique for performing driving assistance for a vehicle.
However, for example, the number of lanes may be increased in order to relieve traffic jams on approach roads to enter intersections, and traffic regulations such as "traffic divisions by direction of travel" that specify the direction of travel for each lane will be changed. In order to make it easier for vehicles to travel at intersections, road map providers and vehicle drivers desire to understand changes in traffic regulations on approach roads.
The technology described in Patent Literature 1 only specifies lanes and provides driving assistance, and cannot recognize changes in traffic regulations on approach roads.

An object of the present invention is to provide an information processing device, an information processing method, and an information processing program capable of determining a change in traffic regulation in a predetermined area of a road.

An information processing apparatus according to one aspect includes an acquisition unit that acquires a plurality of probe information of vehicles passing through a predetermined area of a road, and first probe information of a first vehicle group including a plurality of vehicles acquired by the acquisition unit. A vehicle traveling in a predetermined area based on second probe information of a second vehicle group consisting of a plurality of vehicles whose traveling speed in a predetermined area is generated temporally before the first probe information. A judgment unit for judging that the traffic control on an approach road entering a predetermined area has been changed when the speed becomes faster than the speed, and an output unit for outputting a judgment result by the judgment unit.

In the information processing device of one aspect, the determination unit determines a change in running speed between the running speed of the vehicle based on the first probe information and the running speed of the vehicle based on the second probe information, the first When the first traveling speed distribution of the first vehicle group based on the probe information becomes faster than the second traveling speed distribution of the second vehicle group based on the second probe information, it is determined that the traffic regulation on the approach road has been changed. It is also possible to

In one aspect of the information processing device, the acquisition unit identifies a time period in which the number of vehicles passing through a predetermined area is equal to or greater than a threshold, and a plurality of pieces of probe information generated by vehicles passing through the predetermined area during the time period. may be obtained.

In the information processing device of one aspect, the acquisition unit may acquire a plurality of pieces of probe information generated by the same vehicle that repeatedly passes through the predetermined area on different days at the same time.

In one aspect of the information processing method, the computer performs an acquisition step of acquiring a plurality of probe information of vehicles passing through a predetermined area of a road; A traveling speed in a predetermined region of a vehicle based on one probe information is generated temporally earlier than the first probe information, and a predetermined vehicle based on second probe information of a second vehicle group consisting of a plurality of vehicles. If the traveling speed is faster than the area, a judgment step of judging that the traffic regulation on the approach road entering the predetermined area has been changed, and an output step of outputting the judgment result of the judgment step are executed.

An information processing program of one aspect comprises, in a computer, an acquisition function for acquiring a plurality of probe information of vehicles passing through a predetermined area of a road; A traveling speed in a predetermined region of a vehicle based on one probe information is generated temporally earlier than the first probe information, and a predetermined vehicle based on second probe information of a second vehicle group consisting of a plurality of vehicles. To realize a judgment function for judging that the traffic regulation on an approach road entering a predetermined area is changed when the running speed becomes faster than the traveling speed of the area, and an output function for outputting the judgment result by the judgment function.

The information processing device of one aspect is configured such that the traveling speed of the predetermined region of the vehicle based on the first probe information is the speed of the predetermined region of the vehicle based on the second probe information generated temporally earlier than the first probe information. When the speed becomes faster than the traveling speed, it can be determined that the traffic regulation such as "traffic division by traveling direction" has been changed in order to eliminate congestion on the approach road entering the predetermined area.
Further, the information processing method and the information processing program of one aspect can achieve the same effect as the information processing apparatus of one aspect.

1 is a diagram for explaining an information processing system according to an embodiment; FIG. FIG. 4 is a transition diagram for explaining an example of changes in traffic regulation in a predetermined area; (A) shows the situation before the traffic regulation is changed, and (B) shows the situation after the traffic regulation is changed. 1 is a diagram for explaining an information processing device according to an embodiment; FIG. It is a figure for demonstrating an example of traffic. FIG. 4 is a diagram for explaining changes in running speed distribution of a plurality of vehicles passing through a predetermined area; FIG. 4 is a diagram for explaining changes in passage times of a plurality of vehicles passing through a predetermined area; 4 is a flowchart for explaining an information processing method according to one embodiment;

An embodiment of the present invention will be described below.
FIG. 1 is a diagram for explaining an information processing system according to one embodiment.
FIG. 2 is a transition diagram for explaining an example of changes in traffic regulations in a predetermined area. (A) shows the situation before the traffic regulation is changed, and (B) shows the situation after the traffic regulation is changed.

As shown in FIG. 1 , the information processing system 1 includes a vehicle 10 , an external server 20 and an information processing device 30 .
The vehicle 10 acquires probe information that records travel information about travel. Various types of information are recorded in the probe information (running information). For example, identification information, position information, and time information are recorded. In addition, for example, travel speed information may be recorded in the probe information.

The identification information is, for example, information that identifies the vehicle 10 . The position information is, for example, information about the position where the vehicle 10 has traveled. The time information is, for example, information about the time when the vehicle 10 acquires the position information. The vehicle 10 acquires position information at regular intervals, for example, using a position information acquisition system such as GNSS (Global Navigation Satellite System). In addition, the vehicle 10 acquires the position information based on the time information included in the position information signal of the position information acquisition system or the time clocked by a clock unit (not shown) mounted on the vehicle 10. Get the current time. Also, the traveling speed information is information about the traveling speed of the vehicle 10 . The vehicle 10 acquires the traveling speed of the vehicle, for example, based on the rotation speed of the axle.

When the vehicle 10 acquires the position information and the time (time information), or acquires the traveling speed information, the vehicle 10 stores it as probe information together with the identification information, and transmits the probe information to the external server 20 at a predetermined timing. Although only one vehicle 10 is illustrated in FIG. 1, a plurality of vehicles 10 may be provided.

The external server 20 stores multiple pieces of probe information transmitted from the vehicle 10 . The external server 20 transmits probe information to the information processing device 30 in response to a request from the information processing device 30 .

The information processing device 30 is realized by, for example, a server, a computer terminal, or the like. The information processing device 30 determines traffic regulation in a predetermined area, for example, based on probe information of the vehicle 10 traveling in the predetermined area of the road. For example, the information processing device 30 determines that the traffic regulation on the approach road entering a predetermined area has been changed based on a plurality of temporally different probe information. The predetermined area is an area in which changes in traffic regulations are investigated, and includes, for example, intersections, entrances of motorways, exits of motorways, interchanges of motorways, and the like.

In the case illustrated in FIG. 2 , the predetermined area is the intersection 51 .
In the case illustrated in FIG. 2A, there are a straight road 52 and a left-turn road 53, and the straight road 52 has three lanes in each direction. Two of the three lanes on one side are straight lanes 52a, and one lane is a straight and left turn lane 52b. The straight-ahead and left-turn lane 52b is used by vehicles 10 traveling straight (straight ahead) and left-turning vehicles 10 (left-turning vehicles). That is, a left-turning vehicle needs to decelerate to turn left at an intersection, and the deceleration of the left-turning vehicle causes the straight-ahead vehicle to also decelerate, which causes traffic congestion when the traffic volume is heavy.

Therefore, it is assumed that the traffic regulation at the intersection 51 is changed, and the straight and left turn lane 52b (see FIG. 2A) is changed to the left turn lane 52c as illustrated in FIG. 2B. Since the lanes in which the left-turning vehicle and the straight-ahead vehicle travel are separated, the occurrence of traffic congestion is suppressed. In this case, the traveling speed of the vehicle 10 passing through the intersection 51 illustrated in FIG. 2(B) is faster than the traveling speed of the vehicle 10 passing through the intersection 51 illustrated in FIG. 2(A).

The information processing device 30 passes the traveling speed A of the vehicle 10 recorded in the probe information of the vehicle 10 passing through the intersection 51 illustrated in FIG. 2A and the intersection 51 illustrated in FIG. The traveling speed B of the vehicle 10 recorded in the probe information of the vehicle 10 is compared, and if there is a certain difference (change) between the traveling speed A and the traveling speed B, that is, the traveling speed B is faster (or slower) than the traveling speed A, it is determined that the traffic regulation at the intersection 51 has been changed.

Next, the information processing device 30 will be described in detail.
FIG. 3 is a diagram for explaining the information processing device 30 according to one embodiment.
FIG. 4 is a diagram for explaining an example of traffic volume.
Although the term "information" is used in this specification, the term "information" can be interchanged with "data" and the term "data" can be interchanged with "information."

As shown in FIG. 3 , the information processing device 30 includes a communication section 35 , a storage section 36 , a display section 37 , an acquisition section 32 , a determination section 33 and an output control section 34 . Acquisition unit 32 , determination unit 33 , and output control unit 34 can be implemented as one function of control unit 31 (for example, arithmetic processing unit, etc.) of information processing device 30 .

The communication unit 35 transmits and receives various information to and from an external server. For example, the communication unit 35 receives probe information transmitted from an external server.

The storage unit 36 is, for example, a storage device such as a memory or a hard disk that stores various information and programs.
The display unit 37 is, for example, a display that displays characters or images.
The storage unit 36 and display unit 37 correspond to an embodiment of the "output unit" of the present invention.

The acquisition unit 32 acquires a plurality of probe information of the vehicle 10 passing through a predetermined area of the road. For example, when the user (the user who operates the information processing device 30) specifies a predetermined area for which it is desired to determine whether traffic regulations have been changed, the acquisition unit 32 acquires probe information of the vehicle 10 that has passed through the predetermined area. Acquired from an external server. As a specific example, the acquisition unit 32 acquires the probe information of the vehicle 10 that has passed through the predetermined area based on the position information indicating the position of the predetermined area and the position information recorded in the probe information.

The acquisition unit 32 identifies a time period in which the number of vehicles 10 passing through a predetermined area is equal to or greater than a threshold, and acquires a plurality of probe information generated by the vehicles 10 that have passed through the predetermined area in the time period. good. For example, when a predetermined area is specified by the user, the acquisition unit 32 acquires the probe information of the vehicle 10 that has passed through the predetermined area from the external server based on the position information recorded in the probe information. In this case, the acquisition unit 32 specifies the passage time when the vehicle 10 passes through a predetermined area based on the position information and time information recorded in the probe information, and the number of vehicles 10 passing through the predetermined area may be specified as a period of time when is equal to or greater than a threshold value (a period of time during which a predetermined region passes through).
When the traffic volume is relatively large, it is considered that the running speed of the vehicle 10 running in the predetermined area is stable. Therefore, the threshold is appropriately set to a value that is considered to stabilize the running speed of the vehicle.

For example, after acquiring a plurality of probe information of the vehicle 10 passing through the predetermined area from the external server, the acquisition unit 32 further determines the above-described passage time period (passing through the predetermined area) based on the acquired plurality of probe information. It is also possible to specify (obtain) the probe information of the vehicles 10 that passed through the predetermined area during the passing time period.
Alternatively, the acquisition unit 32 may, for example, identify a plurality of pieces of probe information of the vehicle 10 passing through a predetermined area on an external server, and then further identify the above-described passage time zone based on the identified plurality of pieces of probe information. , the probe information of the vehicle 10 that passed through the predetermined area during the passage time period may be obtained from an external server.
The transit time period may be one time period or multiple time periods.

FIG. 4 is a table summarizing vehicles that have passed through a predetermined area based on probe information.
In the case illustrated in FIG. 4, the acquisition unit 32 refers to probe information of a plurality of vehicles 10 that passed through a predetermined area on October 15th. The acquisition unit 32 acquires the time period during which the vehicle 10 passed through a predetermined area and the traffic volume during that time period, based on the plurality of probe information items referred to. As illustrated in FIG. 4A, the acquisition unit 32 determines that on October 15, the traffic volume (the number of vehicles that have passed through a predetermined area) is 0 between 1:00 and the traffic volume between 2:00 is 5 … 40 vehicles between 6:00, 88 vehicles between 7:00, 75 vehicles between 8:00, 34 vehicles between 9:00, and so on. do. In this case, if the threshold value is preset to 50, for example, the acquiring unit 32 identifies the time slots between 7:00 and 8:00. Then, the acquiring unit 32 acquires the probe information of the vehicle 10 that passed through the predetermined area between 7:00 and 8:00 on October 15th.
Note that the threshold value may be appropriately set according to, for example, traffic volume in a predetermined area.

The acquisition unit 32 may acquire a plurality of pieces of probe information generated by the same vehicle 10 repeatedly passing through a predetermined area during the same time period on different days. For example, based on the identification information, position information and time information recorded in the probe information, the acquisition unit 32 identifies the same vehicle 10 that passes through a predetermined area in the same time zone on different days, and identifies the same vehicle 10 Acquire probe information that passed through a predetermined area on each different day generated in .

For example, after acquiring a plurality of probe information of the vehicle 10 passing through a predetermined area from an external server, the acquisition unit 32 further, based on the acquired plurality of probe information, a predetermined area at the same time on different days. It is also possible to specify (acquire) the probe information generated by the vehicle 10 that passes through a predetermined area in the same time zone on different days.
Alternatively, the acquisition unit 32, for example, after specifying a plurality of probe information of the vehicle 10 passing through a predetermined area on the external server, based on the specified plurality of probe information, predetermined at the same time on different days The same vehicle 10 that repeatedly passes through the area is specified, and probe information generated by the vehicle 10 and passing through a predetermined area in the same time zone on different days may be acquired from an external server.

The acquisition unit 32 refers to probe information of a plurality of vehicles 10 that have passed through a predetermined area on different days, and identifies one or a plurality of vehicles 10 that repeatedly pass through the predetermined area. In the case illustrated in FIG. 4B, the acquisition unit 32 assumes that the vehicle 10 that repeatedly travels in a predetermined area on different days, the vehicles A and B travel between 7:00 and 7:00 on different days, and the vehicle C travels on different days. It is specified that the vehicle runs in the 9:00 range and the vehicle D runs in the 8:00 range on a different day. The acquiring unit 32 acquires respective probe information when vehicles A to D pass through a predetermined area on different days.

When acquiring the probe information, the acquisition unit 32 may exclude the probe information of the vehicle 10 that has been stopped in a specified area for a specified period of time or longer. For example, the acquisition unit 32 may exclude probe information of the vehicle 10 waiting for a signal in a predetermined area (for example, an intersection). As a specific example, the acquisition unit 32 stops at the same position in a predetermined area (including within a predetermined distance from the predetermined area) for a predetermined time or more based on the position information and time information recorded in the probe information. Exclude the probe information of the vehicle 10 that is The predetermined time is appropriately set in consideration of the time at which the signal changes. The predetermined distance is appropriately set based on, for example, estimating the number of vehicles waiting at a signal on the approach road to the predetermined area.

The determination unit 33 makes a determination based on the traveling speed of the vehicle 10 in the predetermined area based on the first probe information and the traveling speed of the vehicle 10 in the predetermined area based on the second probe information.
The first probe information is probe information of a first vehicle group consisting of a plurality of vehicles 10 acquired by the acquisition unit 32 . The second probe information is acquired by the acquiring unit 32 and is probe information of a second vehicle group composed of a plurality of vehicles 10 that is generated temporally before the first probe information. When the traveling speed of the vehicle 10 in the predetermined area based on the first probe information becomes faster than the traveling speed of the vehicle 10 in the predetermined area based on the second probe information, the determination unit 33 enters the predetermined area. It is determined that the traffic regulation of the approach road has been changed.

The traveling speed in the predetermined area is, for example, the traveling speed distribution of the plurality of vehicles 10 traveling in the predetermined area, the average traveling speed obtained by arithmetically averaging the traveling speeds of the plurality of vehicles 10 traveling in the predetermined area, the predetermined area or the median value of the traveling speeds of the plurality of vehicles 10 traveling in a predetermined area.
In addition, the traveling speed in the predetermined area is, for example, the traveling speed when passing through the predetermined area, the traveling speed from entering the predetermined area until leaving the predetermined area (the approach road entering the predetermined area, the predetermined area, and the traveling speed when traveling on the exit road leaving the predetermined area), the traveling speed when entering the predetermined area (traveling speed on the entrance road to the predetermined area), etc. .

The determination unit 33 can acquire the traveling speed of a predetermined area based on the position information and time information recorded in the probe information. Alternatively, when the travel speed information is recorded in the probe information, the determination unit 33 can acquire the travel speed of the predetermined area based on the travel speed information.

In a predetermined area (for example, an intersection, etc.), when traffic congestion due to the vehicles 10 occurs, the running speed of the vehicles 10 becomes relatively slow. On the other hand, when the vehicle 10 does not cause traffic congestion in the predetermined area, the traveling speed of the vehicle 10 is relatively high.

For example, if the frequency of occurrence of traffic congestion is relatively high on an approach road entering a predetermined area, the traffic regulation on the approach road entering the predetermined area is changed so that the occurrence of traffic congestion on the approach road is relatively low. Then, the traveling speed of the vehicle 10 changes before and after the traffic regulation is changed. That is, in a predetermined region where traffic jams due to vehicles 10 frequently occur, if the frequency of traffic congestion later becomes relatively low, the traveling speed of the vehicle 10 passing through the predetermined region is considered to increase relatively. be done. An example of a change in traffic regulation is the change, addition, or addition of road signs (traffic divisions by direction of travel) and road markings attached to the road surface (e.g., arrows on the road that regulate the direction of travel, such as going straight, turning left and turning right). Deletion (as a specific example, change from straight and left-turn lanes to left-turn lanes (see FIG. 2)), change (variation) in the number of lanes, addition of left-turn only lanes or right-turn only lanes, and the like.

If the traveling speed of the vehicle 10 in the predetermined area based on the first probe information becomes faster than the traveling speed of the vehicle 10 in the predetermined area based on the second probe information, the determination unit 33 restricts traffic in the predetermined area. is determined to have been changed.
As a specific example, the determination unit 33 determines the change in the running speed between the running speed of the vehicle 10 based on the first probe information and the running speed of the vehicle 10 based on the second probe information. When the first traveling speed distribution of the first vehicle group based on the first probe information becomes faster than the second traveling speed distribution of the second vehicle group based on the second probe information, it is determined that the traffic control on the approach road has been changed. It may be determined.

FIG. 5 is a diagram for explaining changes in running speed distribution of a plurality of vehicles 10 passing through a predetermined area.
As illustrated in FIG. 5, it is assumed that the determination unit 33 acquires the travel speed (travel speed distribution) of the vehicle 10 passing through a predetermined area based on the probe information. In the case illustrated in FIG. 5, in the running speed distribution from June to August, the number of vehicles traveling less than 20 km/h and less than 40 km/h is greater than the number of vehicles traveling less than 50 km/h and 60 km/h or more. On the other hand, in the running speed distribution from September to October, the number of vehicles traveling less than 50 km/h and 60 km or more is greater than the number of vehicles traveling less than 20 km/h and less than 40 km/h. The determination unit 33 determines that the first running speed distribution based on the probe information (first probe information) after September is faster than the second running speed distribution based on the probe information (second probe information) before August. Therefore, it is determined that the traffic regulation on the approach road entering the predetermined area has been changed.

In addition, when the traveling speed of the vehicle 10 in the predetermined area based on the first probe information becomes faster than the traveling speed in the predetermined area of the vehicle 10 based on the second probe information, the vehicle 10 moves in the predetermined area. A case where the passage time to pass is shortened (fastened) is also included. That is, the determination unit 33 determines that the first passage time for the vehicle 10 of the first vehicle group based on the first probe information to pass through the predetermined area is the predetermined time for the vehicle 10 of the second vehicle group based on the second probe information. is shorter (earlier) than the second passage time for passing through the area, it may be determined that the traffic regulation on the approach road entering the predetermined area has been changed.

The transit time used by the determination unit 33 for determination is, for example, an average transit time obtained by arithmetically averaging the transit times of the plurality of vehicles 10, the shortest transit time or the longest transit time of the transit times of the plurality of vehicles 10, or a plurality of It may be the median value of the passing time of the vehicle 10 or the like.
Also, the passage time when passing through the predetermined area is, for example, the time from entering the predetermined area to leaving, that is, the first distance from the predetermined area on the approach road to the predetermined area. It may be the time to pass through position A and position B, which is a second distance from the predetermined area on the exit path from the predetermined area. The first distance and the second distance may be the same or different. Alternatively, the passage time when passing through the predetermined area is, for example, the time when entering the predetermined area, that is, the position C at the third distance from the predetermined area on the approach road to the predetermined area and the predetermined It may be the time to pass through the position D indicating the area of .

FIG. 6 is a diagram for explaining changes in passage times of a plurality of vehicles passing through a predetermined area.
As illustrated in FIG. 6, it is assumed that the determination unit 33 acquires the passage time of the vehicle 10 passing through the predetermined area based on the probe information. In the example shown in FIG. 6, the transit time from June to August is relatively long (late), and the transit time from September to October is relatively short (early). Since the passage time based on the probe information (first probe information) after September is shorter (faster) than the passage time based on the probe information (second probe information) before August, the determination unit 33 determines that the predetermined It is determined that the traffic regulation of the approach road entering the area has been changed.

Here, the determining unit 33 determines whether to change the traffic regulation on the approach road based on the traveling speed of the vehicle 10 in a predetermined area (for example, an intersection) (the passage time of the vehicle 10 in the predetermined area). For each of a plurality of vehicles 10 going straight through the area (intersection), a plurality of vehicles 10 turning left at a predetermined area (intersection), and a plurality of vehicles 10 turning right at a predetermined area (intersection), the traveling speed (passing time). In this case, the determination unit 33 may determine whether the vehicle 10 is going straight, turning left, or turning right, based on steering angle information recorded in the probe information, for example.

The steering angle information is, for example, information about the angle of the steering wheel (steering angle) for defining the traveling direction of the vehicle 10 . As an example, the steering angle ranges from -150° to 150° when the vehicle 10 is traveling straight. As an example, the steering angle ranges from -150° to 525° when the vehicle 10 turns right. As an example, the steering angle ranges from -525° to 150° when the vehicle 10 turns left.

For example, if the steering angle of the vehicle 10 passing through the predetermined area is in the range of -150° to 150° based on the probe information (steering angle information), the determination unit 33 determines that the vehicle 10 determines that is going straight. Similarly, for example, if the steering angle of the vehicle 10 passing through the predetermined region is within the range of -150° to 525° based on the probe information (steering angle information), the determination unit 33 determines that the predetermined region is determined that the vehicle 10 is turning right. Similarly, for example, if the steering angle of the vehicle 10 passing through the predetermined region is within the range of -525° to 150° based on the probe information (steering angle information), the determination unit 33 determines that the predetermined region is determined that the vehicle 10 is turning left.
Note that the determination unit 33 can also estimate how traffic regulations have been changed by making determinations based on the operation angle information. As a specific example, when there is a change in the traveling speed (passing time) of the vehicle 10 turning left in a predetermined area (for example, an intersection), the determination unit 33 determines that the traffic regulation regarding the left turn at the intersection is changed. can be estimated.

The output unit outputs the result of determination by the determination unit 33 . The output units are the storage unit 36 and the display unit 37 as described above.
The output control unit 34 controls output of determination results to the storage unit 36 and the display unit 37 . That is, the output control unit 34 stores the determination result (determination result information) by the determination unit 33 in the storage unit 36 . The output control unit 34 displays the determination result by the determination unit 33 on the display unit 37 . As a specific example, the output control unit 34 stores, in the storage unit 36, as the determination result, information related to a predetermined area in which it has been determined that traffic regulations have been changed. As a specific example, the output control unit 34 may display, as a result of determination, on the display unit 37 a road map showing a predetermined area in which traffic regulations have been changed.

Next, an information processing method according to one embodiment will be described.
FIG. 7 is a flowchart for explaining an information processing method according to one embodiment.

In step ST101, the acquisition unit 32 acquires a plurality of probe information of the vehicle 10 passing through a predetermined area of the road. For example, when the user specifies a predetermined area for which a change in traffic regulation is to be determined, the acquiring unit 32 acquires the probe information of the vehicle 10 that has passed through the predetermined area from the external server.
In addition, the acquisition unit 32 identifies a time period in which the number of vehicles 10 passing through a predetermined area is equal to or greater than a threshold value, and acquires a plurality of probe information generated by the vehicles 10 passing through the predetermined area during the time period. may be Further, the acquisition unit 32 may acquire a plurality of pieces of probe information generated by the same vehicle 10 that repeatedly passes through a predetermined area during the same time period on different days.

In step ST102, the acquisition unit 32 acquires the running speed 1 of the vehicle 10 in a predetermined area based on the probe information (first probe information) after a predetermined date and time among the plurality of pieces of probe information acquired in step ST101. do. The acquisition unit 32 may acquire the travel speed distribution (first travel speed distribution) of the plurality of vehicles 10 traveling in a predetermined area based on the travel speed 1 .
The travel speed in the predetermined area is, for example, the travel speed when passing through the predetermined area, the travel speed from entering the predetermined area to leaving the predetermined area (approach road entering the predetermined area, predetermined area , and traveling speed when traveling on an exit road leaving a predetermined area), traveling speed when entering a predetermined area (traveling speed on an approach road to a predetermined area), and the like.

In step ST103, the acquisition unit 32 acquires the running speed 2 of the vehicle 10 in a predetermined area based on the probe information (second probe information) before a predetermined date and time among the plurality of pieces of probe information acquired in step ST101. do. The acquisition unit 32 may acquire the travel speed distribution (second travel speed distribution) of the plurality of vehicles 10 traveling in a predetermined area based on the travel speed 2 .
The travel speed in the predetermined area is, for example, the travel speed when passing through the predetermined area, the travel speed from entering the predetermined area to leaving the predetermined area (approach road entering the predetermined area, predetermined area , and traveling speed when traveling on an exit road leaving a predetermined area), traveling speed when entering a predetermined area (traveling speed on an approach road to a predetermined area), and the like.

In step ST104, the determination unit 33 determines whether the traveling speed 1 of the vehicle 10 acquired in step ST102 is faster than the traveling speed 2 of the vehicle 10 acquired in step ST103. For example, the determination unit 33 determines whether the first running speed distribution is faster than the second running speed distribution.
As a specific example, in the case shown in FIG. 5, the determination unit 33 determines that the first running speed distribution based on the probe information (first probe information) after September is changed to the probe information (second probe information) before August. It is determined whether the running speed is faster than the second running speed distribution based on.
Here, the determination unit 33 may determine whether the first running speed distribution has become faster than the second running speed distribution by a threshold value or more.
If traveling speed 1 (first traveling speed distribution) is faster than traveling speed 2 (second traveling speed distribution) (Yes), the process proceeds to step ST105. If traveling speed 1 (first traveling speed distribution) is not faster than traveling speed 2 (second traveling speed distribution) (No), the process ends.

In step ST105, the determination unit 33 determines that the traffic regulation on the approach road entering the predetermined area has been changed. Examples of changes in traffic regulations include changes in road signs (traffic divisions by direction of travel), road markings attached to the road surface (e.g., arrow displays on the road surface that regulate the direction of travel such as going straight, turning left and turning right), and For example, an exclusive left turn lane or an exclusive right turn lane is added.

In step ST106, the output control section 34 outputs the determination result of step ST105. That is, the output control section 34 may store the determination result of step ST105 in the storage section 36 . Also, the output control section 34 may display the determination result of step ST105 on the display section 37 .
As a specific example, the output control unit 34 stores, in the storage unit 36, as the determination result, information related to a predetermined area in which it has been determined that traffic regulations have been changed. As a specific example, the output control unit 34 may display, as a result of determination, on the display unit 37 a road map showing a predetermined area in which traffic regulations have been changed.

Next, the effects of this embodiment will be described.
The information processing device 30 includes an acquisition unit 32 that acquires a plurality of pieces of probe information of the vehicle 10 that passes through a predetermined area of the road, and a first A vehicle 10 based on second probe information of a second vehicle group consisting of a plurality of vehicles 10 in which the traveling speed in a predetermined area of the vehicle 10 based on the probe information is generated temporally earlier than the first probe information. A judgment unit 33 for judging that the traffic regulation on the approach road entering the prescribed area has been changed when the traveling speed exceeds the prescribed area, and a storage unit 36 and a display unit for outputting the judgment result of the judgment unit 33. 37 (output unit).
Thereby, the information processing device 30 can determine that the traffic control on the approach road to the predetermined area has been changed.
The information processing device 30 also outputs the determination result of the change in traffic regulation. For example, the information processing device 30 stores in the storage unit 36 the position of the predetermined area for which the traffic regulation has been changed, and displays the position on the display unit 37 so that the user of the information processing device 30 can understand the traffic regulation. is changed, it is possible to grasp the predetermined area. Further, the information processing device 30 registers the predetermined area where the traffic regulation is changed in the map information related to the road map, so that the driver or the like who drives the vehicle 10 is notified of the predetermined area where the traffic regulation is changed. can provide the location of As a result, the driver can know in advance the lane corresponding to the traveling direction of the driver (vehicle 10), and can drive the vehicle 10 by selecting the lane. In addition, since the driver can drive the vehicle 10 by selecting a road on which traffic congestion is less likely to occur, the information processing device 30 can provide information regarding driving of the vehicle 10, such as delay in arrival at the destination due to traffic congestion. It is possible to reduce the burden on the driver.
In addition, the information processing device 30 makes a determination based on a plurality of pieces of probe information (for example, a plurality of pieces of probe information generated by a plurality of vehicles 10), thereby increasing the reliability of the judgment that the traffic regulation has been changed. can enhance sexuality.

In the information processing device 30, the determination unit 33 determines the change in the running speed between the running speed of the vehicle 10 based on the first probe information and the running speed of the vehicle 10 based on the second probe information. When the first traveling speed distribution of the first vehicle group based on the first probe information becomes faster than the second traveling speed distribution of the second vehicle group based on the second probe information, it is determined that the traffic control on the approach road has been changed. It may be determined.
The travel speed distribution may make it easier to grasp the traffic situation (whether or not there is traffic congestion) in a given area compared to the average travel speed, maximum travel speed, median value of a plurality of travel speeds, and the like. Therefore, by using the traffic speed distribution of the plurality of vehicles 10, the information processing device 30 can more accurately determine that the traffic regulation on the approach road has been changed.

In the information processing device 30, the acquisition unit 32 identifies a time period in which the number of vehicles 10 passing through a predetermined area is equal to or greater than a threshold, and obtains a plurality of pieces of probe information generated by the vehicles 10 passing through the predetermined area during the time period. may be obtained.
The information processing device 30 determines that the traffic regulation on the approach road has been changed based on the traveling speed of the vehicle 10 passing through the predetermined area during a time period when the traffic volume in the predetermined amount of area is relatively high. When the traffic volume is relatively large, it is considered that the running speed of the vehicle 10 running in the predetermined area is stable. In addition, when the traffic volume is relatively large, there is a possibility that congestion will occur in a predetermined area. Therefore, when the traffic volume in the predetermined area is relatively large, it is considered that the traffic conditions (whether or not there is traffic congestion) in the predetermined area are likely to be reflected.
Therefore, the information processing device 30 can more accurately determine that the traffic control has been changed to the approach road.

In the information processing device 30, the acquisition unit 32 may acquire a plurality of pieces of probe information generated by the same vehicle 10 repeatedly passing through a predetermined area in the same time zone on different days.
Accordingly, the information processing device 30 has a high possibility that the same driver is driving the same vehicle 10 . When the same driver drives the vehicle 10, the tendencies in driving the vehicle 10 (for example, driving style such as driving at a relatively high driving speed) are considered to always be the same. That is, the probe information of the same vehicle 10 has a highly reliable travel history and is stable. Therefore, when the same vehicle 10 travels on different days at the same time, the information processing device 30 determines that the traffic regulation on the approach road has been changed based on the traveling speed of the same vehicle 10. Therefore, the change of the traffic regulation can be determined more accurately.

In the information processing method, the computer performs an acquisition step of acquiring a plurality of probe information of the vehicle 10 passing through a predetermined area of the road; A vehicle 10 based on second probe information of a second vehicle group consisting of a plurality of vehicles 10 in which the traveling speed in a predetermined area of the vehicle 10 based on the probe information is generated temporally earlier than the first probe information. When the running speed becomes faster than the predetermined area, a judgment step for judging that the traffic regulation on the approach road entering the prescribed area has been changed, and an output step for outputting the judgment result of the judgment step are executed.
Thereby, the information processing method can determine that the traffic regulation on the approach road to the predetermined area has been changed.
Also, the information processing method outputs a determination result of a change in traffic regulation. For example, the information processing method stores the position of the predetermined area where the traffic regulation has been changed in the storage unit 36, and displays the position on the display unit 37, so that the user using the information processing method can understand the traffic regulation. is changed, it is possible to grasp the predetermined area. Further, the information processing method registers the predetermined area where the traffic regulation has been changed in the map information related to the road map, so that the driver or the like who drives the vehicle 10 is notified of the predetermined area where the traffic regulation has been changed. location can be provided. As a result, the driver can know in advance the lane corresponding to the traveling direction of the driver (vehicle 10), and can drive the vehicle 10 by selecting the lane. In addition, since the driver can drive the vehicle 10 by selecting a road on which traffic jams are less likely to occur, the information processing method can be applied to the driving of the vehicle 10, such as delay in arrival at the destination due to traffic jams. can reduce the burden on
In addition, the information processing method makes a determination based on a plurality of probe information (for example, a plurality of probe information generated by a plurality of vehicles 10), so that the reliability of the determination that the traffic regulation has been changed is determined. can increase

The information processing program provides the computer with an acquisition function of acquiring a plurality of probe information of vehicles 10 passing through a predetermined area of the road, and a first A vehicle 10 based on second probe information of a second vehicle group consisting of a plurality of vehicles 10 in which the traveling speed in a predetermined area of the vehicle 10 based on the probe information is generated temporally earlier than the first probe information. A determination function that determines that the traffic regulation on the approach road entering the predetermined area has been changed when the traveling speed exceeds the predetermined area, and a storage function and display function (output function) that outputs the determination result of the determination function. ) and realize.
Thereby, the information processing program can determine that the traffic regulation on the approach road to the predetermined area has been changed.
In addition, the information processing program outputs the determination result of the traffic regulation change. For example, the information processing program stores the position of the predetermined area where the traffic regulation is changed in the storage unit 36, and displays the position on the display unit 37, so that the user of the computer on which the information processing program is executed can , the predetermined area where the traffic regulation is changed can be grasped. Further, the information processing program registers the predetermined area where the traffic regulation is changed in the map information related to the road map, so that the driver or the like who drives the vehicle 10 is notified of the predetermined area where the traffic regulation is changed. location can be provided. As a result, the driver can know in advance the lane corresponding to the traveling direction of the driver (vehicle 10), and can drive the vehicle 10 by selecting the lane. In addition, since the driver can drive the vehicle 10 by selecting a road on which traffic congestion is less likely to occur, the information processing program can provide the driver with information regarding the driving of the vehicle 10, such as delay in arrival at the destination due to traffic congestion. can reduce the burden on
In addition, the information processing program makes a determination based on a plurality of pieces of probe information (for example, a plurality of pieces of probe information generated by a plurality of vehicles 10), thereby determining whether the traffic regulation has been changed. can increase

Each part of the information processing device 30 described above may be implemented as a function of an arithmetic processing device of a computer or the like. That is, the control unit 31, the acquisition unit 32, the determination unit 33, and the output control unit 34 of the information processing device 30 are realized as a control function, an acquisition function, a determination function, and an output control function, respectively, by an arithmetic processing unit of a computer or the like. good too.
The information processing program can cause the computer to implement each function described above. The hygiene management program may be recorded on a non-temporary computer-readable recording medium such as an external memory or an optical disc.
Further, as described above, each part of the information processing device 30 may be realized by an arithmetic processing device or the like of a computer. The arithmetic processing unit or the like is configured by an integrated circuit or the like, for example. Therefore, each part of the information processing device 30 may be implemented as a circuit that constitutes an arithmetic processing device or the like. That is, the control unit 31, the acquisition unit 32, the determination unit 33, and the output control unit 34 of the information processing device 30 are implemented as a control circuit, an acquisition circuit, a determination circuit, and an output control circuit that constitute an arithmetic processing unit of a computer. may
Also, the communication unit 35, the storage unit 36, and the display unit 37 of the information processing device 30 may be realized as a communication function, a storage function, and a display function, including functions such as an arithmetic processing unit, for example. Also, the communication unit 35, the storage unit 36, and the display unit 37 of the information processing device 30 may be realized as a communication circuit, a storage circuit, and a display circuit by being configured by an integrated circuit or the like, for example. Also, the communication unit 35, the storage unit 36, and the display unit 37 of the information processing device 30 may be configured as a communication device, a storage device, and a display device, for example, by being configured by a plurality of devices.

1 information processing system 10 vehicle 20 external server 30 information processing device 31 control unit 32 acquisition unit 33 determination unit 34 output control unit 35 communication unit 36 storage unit 37 display unit

Claims (7)

an acquisition unit that acquires a plurality of probe information of a vehicle passing through a predetermined area of a road;
The traveling speed of the vehicle in the predetermined region based on the first probe information of the first vehicle group composed of a plurality of vehicles, which is acquired by the acquisition unit, was generated temporally earlier than the first probe information. determining that the traffic control on the approach road entering the predetermined area has been changed when the traveling speed of the vehicle becomes faster than the predetermined area based on the second probe information of the second vehicle group consisting of a plurality of vehicles. a determination unit for
an output unit that outputs a determination result by the determination unit;
with
The determination unit includes first probe information, second probe information, and traveling for each of the probe information to turn left in the predetermined area, the probe information to go straight through the predetermined area, and the probe information to turn right in the predetermined area. Compare speeds to determine traffic regulation changes
Information processing equipment. The determination unit determines a change in running speed between the running speed of the vehicle based on the first probe information and the running speed of the vehicle based on the second probe information, based on the first probe information. When the first running speed distribution of the first vehicle group becomes faster than the second running speed distribution of the second vehicle group based on the second probe information, it is determined that the traffic control on the approach road has been changed. The information processing apparatus according to claim 1. The acquisition unit specifies a time period in which the number of vehicles passing through the predetermined area is equal to or greater than a threshold, and acquires a plurality of pieces of probe information generated by vehicles passing through the predetermined area during the time period. 3. The information processing device according to 1 or 2. The information processing apparatus according to any one of claims 1 to 3, wherein the acquisition unit acquires a plurality of probe information generated by the same vehicle that repeatedly passes through the predetermined area in the same time zone on different days. . The determination unit determines in which direction the traffic regulation has been changed for the predetermined area.
5. The information processing apparatus according to any one of claims 1 to 4, characterized by: the computer
an acquiring step of acquiring a plurality of probe information of vehicles passing through a predetermined area of a road;
The traveling speed of the vehicle in the predetermined region based on the first probe information of the first vehicle group composed of a plurality of vehicles, which is acquired by the acquiring step, was generated temporally earlier than the first probe information. determining that the traffic control on the approach road entering the predetermined area has been changed when the traveling speed of the vehicle becomes faster than the predetermined area based on the second probe information of the second vehicle group consisting of a plurality of vehicles. a determination step to
an output step of outputting the determination result of the determination step;
and run
The determination step includes first probe information, second probe information, and traveling for each of the probe information to turn left in the predetermined area, the probe information to go straight through the predetermined area, and the probe information to turn right in the predetermined area. Compare speeds to determine traffic regulation changes
Information processing methods. to the computer,
an acquisition function for acquiring multiple probe information of a vehicle passing through a predetermined area of the road;
The traveling speed of the vehicle in the predetermined region based on the first probe information of the first group of vehicles, which is acquired by the acquisition function, was generated temporally before the first probe information. determining that the traffic control on the approach road entering the predetermined area has been changed when the traveling speed of the vehicle becomes faster than the predetermined area based on the second probe information of the second vehicle group consisting of a plurality of vehicles. judgment function to
an output function for outputting a determination result by the determination function;
to realize
The determination function includes first probe information, second probe information, and traveling for each of the probe information to turn left in the predetermined area, the probe information to go straight through the predetermined area, and the probe information to turn right in the predetermined area. Compare speeds to determine traffic regulation changes
Information processing program.

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