JP2020034335A - Information processing apparatus - Google Patents

Abstract

To provide intersection data representing an intersection associated with a piece of statistical information on small turning right at the intersection.SOLUTION: The data configuration includes: a piece of intersection data representing a piece of positional information of an intersection; a piece of statistical information about the small turning right of moving bodies at the intersection; and a piece of information about the time zone.SELECTED DRAWING: Figure 12

Description

  The present invention relates to an information processing device.

  According to the Road Traffic Law, when a moving object such as a car makes a right turn, it is recommended to approach the center of the road as much as possible beforehand and to slow down inside the immediate vicinity of the center of the intersection. However, there are many moving bodies that turn right (small turn right) away from the center of the intersection.

  By the way, conventionally, there has been proposed a system in which the safety level of an intersection is determined in accordance with the presence or absence of a traffic light and a route search is performed (Patent Documents 1 and 2). However, the intersection data indicating the intersection includes a small right turn at the intersection. It is not proposed to record data linked with the statistical information of what has been done.

JP 2017-173136 A JP-A-2006-99758

  An object of the present invention is to address such a problem as an example. That is, an object of the present invention is to provide data in which, for example, intersection data indicating an intersection is linked with statistical information indicating that the vehicle has made a small turn right at the intersection.

  A data structure according to claim 1, which has been made to solve the above-described problem, is a data structure of intersection data indicating an intersection, wherein the data structure includes statistical information on a small turning right of a moving body at each intersection. .

  The recording medium according to claim 8 is characterized in that data having the data structure is recorded.

  A recording apparatus according to a ninth aspect records data having the above data structure.

1 is a system configuration using an information processing apparatus according to one embodiment of the present invention. It is explanatory drawing for demonstrating a small turn right. FIG. 2 is a functional configuration diagram of the vehicle-mounted device shown in FIG. 1. FIG. 2 is a functional configuration diagram of the server device shown in FIG. 1. It is a graph which shows the change of the azimuth per unit traveling distance with respect to each traveling distance when making a recommended right turn and making a small turn right. FIG. 9 is an explanatory diagram for describing determination of a mode of a locus when making a small turn right. 7 is a graph showing a change in azimuth with respect to a traveling distance when a right turn is made on the locus shown in FIG. 6. It is a graph which shows the change of the direction per unit traveling distance with respect to the traveling distance when making a right turn instead of a small turn right. 3 is a flowchart illustrating a small turn determination process performed by the vehicle-mounted device illustrated in FIG. 1. FIG. 4 is an explanatory diagram for describing a data structure of data generated by the on-vehicle device. 4 is a flowchart illustrating an intersection data generation processing procedure executed by the server device illustrated in FIG. 1. FIG. 4 is an explanatory diagram for describing a data structure of data generated by a server device. 2 is a flowchart showing a procedure for a determination process of impatience performed by the vehicle-mounted device shown in FIG. 1. 3 is a flowchart illustrating a procedure of a determination process of impatience performed by the server device illustrated in FIG. 1. FIG. 4 is an explanatory diagram for describing a right turn route at an intersection.

  A data structure according to an embodiment of the present invention is a data structure of intersection data indicating an intersection, wherein the data structure includes statistical information on a small turning right of a moving body at each intersection. Thereby, it is possible to provide data in which statistical information indicating that the vehicle has made a small turn right at the intersection is linked to the intersection data indicating the intersection.

  Further, an ID of the intersection may be further included.

  Further, position information of the intersection may be further included.

  Further, the statistical information may include the number of small turns.

  Further, the statistical information may include a frequency of a small turn.

  Further, the statistical information may include a frequency of a small right turn for each time zone.

  Further, statistical information may be provided for each right turn route at the intersection.

  Further, data having the above-described data structure may be recorded on a recording medium or a recording device.

(First embodiment)
An information processing method according to the first embodiment of the present invention will be described with reference to FIGS.

  The system 1 that implements the information processing method of the present invention includes an in-vehicle device 2 as an information processing device and a server device 3. The on-vehicle device 2 is a device that determines whether or not the vehicle has made a small right turn, and transmits data including the determination result to the server device 3. The on-vehicle device 2 is mounted on a vehicle 4 as a moving body traveling on a road.

  Next, the above-mentioned small turning right will be described with reference to FIG. According to the Road Traffic Law, when making a right turn, the vehicle 4 moves in advance as close to the center of the road as possible as shown in the traveling trajectory T1 indicated by the dotted line, and is located in the immediate vicinity of the center O1 of the intersection. It is recommended to slow down. On the other hand, a small right turn means a right turn away from the center O1 of the intersection as shown by a traveling locus T2 represented by a solid line. The traveling trajectory T2 of the small-turn right turn is a trajectory in which the vicinity of the intersection entrance En and the vicinity of the intersection exit Ex are connected by a substantially straight line without making a large turn like the recommended traveling trajectory T1. For this reason, a small turn right is also called a shortcut. If the driver is impatient, such as being late, the driver tends to make a small turn right at the intersection.

  Further, in the present embodiment, the in-vehicle device 2 mounted on the vehicle 4 will be described as an example of a terminal that can communicate with the server device 3, but a mobile terminal such as a smartphone that can be arranged in the vehicle 4 may be used. .

  The server device 3 receives and collects data from the in-vehicle device 2 passing through the intersection, and generates statistical information of a small right turn at each intersection. The server device 3 can communicate with the vehicle-mounted device 2 via a network N such as the Internet, for example, and acquires data from the vehicle-mounted device 2 using the network N.

  FIG. 3 shows a functional configuration of the on-vehicle device 2. The on-vehicle device 2 includes a control unit 21, an input / output unit 22, a recording device 23, a direction sensor 24, and a sensor unit 25.

  The control unit 21 functions as a processor such as a CPU (Central Processing Unit) of the vehicle-mounted device 2, and controls the entire vehicle-mounted device 2. The control unit 21 determines whether or not the vehicle 4 on which the in-vehicle device 2 is mounted has made a small right turn, and transmits data including the determination result to the server device 3. In addition, the control unit 21 acquires the statistical information from the server device 3 and performs the driving evaluation based on the acquired statistical information and the result of the determination of the right turn.

  The input / output unit 22 functions as a network interface of the vehicle-mounted device 2 and transmits data.

  The recording device 23 is configured from a hard disk or the like, and records data transmitted from the control unit 21 to the server device 3 and map data.

  The direction sensor 24 is a sensor for acquiring information about a direction indicating the progress of the vehicle 4. The direction sensor 24 includes, for example, a gyro sensor that detects the angular velocity of the vehicle 4 in the left-right direction (= change in direction per unit time), a magnetic sensor that detects the direction itself from magnetism, and the like.

  Next, the functional configuration of the server device 3 is shown in FIG. The server device 3 includes a recording device 31 as a storage unit, a control unit 32, and an input / output unit 33.

  The recording device 31 includes a hard disk or the like, and records data transmitted from the vehicle-mounted device 2 and the like. The control unit 32 functions as a processor such as a CPU of the server device 3 and controls the entire server device 3. When receiving the data from the in-vehicle device 2, the control unit 32 records the data in the recording device 31.

  The input / output unit 33 functions as a network interface of the server device 3 and receives data from the vehicle-mounted device 2.

  Next, before describing the operation of the system 1, a method of determining a small turn right executed by the vehicle-mounted device 2 will be described with reference to FIG. When the recommended right turn is made, the vehicle 4 moves straight from the intersection entrance En toward the center O1 of the intersection as shown by the traveling locus T1 in FIG. 2, and changes the direction by turning the steering wheel near the center O1 of the intersection. I do. After the direction is changed, the vehicle 4 exits from the exit Ex at the intersection while traveling straight.

  In this manner, when the recommended right turn is made, the vehicle 4 turns right while the steering wheel is being turned, and the steering angle is often the largest near the center O1 of the intersection, and the azimuth per unit mileage changes. As shown in FIG. 5A, one large peak appears.

  On the other hand, when making a small right turn, the vehicle 4 enters the vehicle at the intersection En by changing the direction of the steering wheel by turning the steering wheel at the intersection En, as shown by the traveling locus T2 in FIG. After that, the vehicle 4 turns the steering wheel again at the intersection exit Ex to change the direction and exits the intersection. In this manner, when making a small right turn, the vehicle 4 often has a large steering angle at the entrance En and the exit Ex at the intersection, and a small steering angle near the center O1. In the change, two peaks appear as shown in FIG. In addition, the magnitude of two peaks of a small right turn is smaller than the recommended magnitude of one peak of a right turn.

  Therefore, in the present embodiment, the control unit 21 of the on-vehicle device 2 (hereinafter simply referred to as “on-vehicle device 2”) does not make a small turn right when the number of azimuth changes per unit traveling distance is one. It is determined that the vehicle is making a small turn right when the number of peaks is two. Then, the vehicle-mounted device 2 transmits the determination result to the server device 3.

  In the present embodiment, the in-vehicle device 2 also determines the mode of the trajectory when making a small right turn. Specifically, the vehicle-mounted device 2 determines whether or not the vehicle has made a small right turn as shown in the traveling locus T3 in FIG. The traveling trajectory T3 is a trajectory when the vehicle turns right at the intersection entrance En and turns gently at the intersection exit Ex. There is a possibility that the vehicle has entered the opposite lane after the right turn. A small right turn in the traveling locus T3 is a bad right turn among the small right turns.

  When making a small turn right like the traveling locus T3, as shown in FIG. 7, the change in the azimuth per unit traveling distance is such that the earlier peak is larger in magnitude and kurtosis than the later peak. Therefore, the vehicle-mounted device 2 determines the mode of the trajectory when making a small turn right at the intersection based on the comparison of the magnitude or kurtosis of the two peaks. In this embodiment, the in-vehicle device 2 obtains comparison information of the magnitude or kurtosis of the two peaks and determines the result as the determination result, which is used as the information about the trajectory of the vehicle 4 when making a small right turn. The comparison information is information on whether or not the magnitude or the kurtosis of the preceding peak is greater than or equal to the predetermined value by a predetermined value.

  In the present embodiment, the in-vehicle device 2 also determines the mode of the trajectory when making a right turn instead of a small turn. When a recommended right turn is made, the change in azimuth with respect to the traveling distance has a symmetrical shape such as a normal distribution as shown by the solid line in FIG. 8, and the skewness is close to zero. On the other hand, even if it is determined that there is only one peak and the turn is not a small turn, if the turn is close to the small turn, the shape of the change in the azimuth per unit traveling distance is not symmetrical as shown by the dotted line in FIG. , And distortion occurs. This distortion increases as the vehicle turns closer to a small right turn (a trajectory farther from the center O1). Also, the larger the steering angle at the entrance En, the more the distortion is shifted to the left, and the larger the steering angle at the exit Ex, the more the distortion is to the right. Therefore, it is possible to estimate the traveling locus.

  Therefore, in the present embodiment, the in-vehicle device 2 determines the mode of the trajectory when making a right turn at an intersection based on the skewness (shape) of the change in azimuth per unit traveling distance when making a right turn instead of a small turn right. In the present embodiment, the on-vehicle device 2 obtains the skewness of the change in the azimuth per unit traveling distance to obtain a determination result, which is information regarding the trajectory of the vehicle 4 when making a right turn. In the present embodiment, the skewness is the shape of the change in the azimuth with respect to the traveling distance. However, the shape is not limited to this, and may be any shape that can represent the shape.

  Next, a description will be given of the timing of determining the above-described small turn right. The in-vehicle device 2 determines whether or not the vehicle 4 is turning right at the intersection, and determines whether or not the above-described small-turn right is based on the output of the direction sensor 24 while it is determined that the vehicle 4 is turning right at the intersection. Do. The determination as to whether the vehicle 4 is turning right at the intersection is performed, for example, as follows. The in-vehicle device 2 determines that the vehicle is turning right when it is determined that the vehicle is moving at the intersection while the right turn signal is being operated.

  The in-vehicle device 2 does not determine that the vehicle is turning right unless the user turns the intersection when the right turn signal is operated. The determination as to whether or not the vehicle is moving at the intersection is performed based on, for example, whether or not the current position of the vehicle 4 obtained by the GPS receiver 25A is at the intersection position on the map data recorded in the recording device 23. be able to. In addition, it is also possible to determine whether or not the vehicle is moving at the intersection from the image data of the camera.

  It should be noted that the determination of whether or not the vehicle is turning right at the intersection is not limited to the operation of the turn signal. If it is determined from the output of the direction sensor 24 that the vehicle is turning clockwise, and the current position of the vehicle 4 is on the intersection, it can be determined that the intersection is turning right. Alternatively, it may be determined whether or not the vehicle is turning right at the intersection based on the traveling locus of the vehicle 4 obtained from the current position.

  Next, the operation of the system 1 described above will be described. First, the small turn determination process executed by the vehicle-mounted device 2 will be described below with reference to FIG.

  The in-vehicle device 2 performs the small turn determination process at a predetermined timing such as every fixed time or every time the vehicle travels a certain distance. In the small turn determination process, the vehicle-mounted device 2 determines whether the vehicle 4 has turned right at the intersection (Step S1). When the in-vehicle device 2 determines that the vehicle is turning right at the intersection (Y in step S1), the in-vehicle device 2 captures the output of the azimuth sensor 24 during the determination, and makes a small right turn determination based on the time-series data of the captured output. (Step S2).

  The in-vehicle device 2 obtains a change in azimuth per unit mileage with respect to the mileage based on the output of the azimuth sensor 24 in the small turn determination in step S2, and determines that the right turn is not a small turn right if there is only one peak. I do. On the other hand, if the number of peaks is two, the vehicle-mounted device 2 determines that the vehicle is making a small right turn.

  If it is determined in step S2 that it is a small turn right (Y in step S3), the in-vehicle device 2 obtains comparison information of the magnitude or kurtosis of the two peaks (step S4), and then proceeds to step S6. On the other hand, if it is determined in step S2 that the right turn is not a small turn right (N in step S3), the in-vehicle device 2 calculates the skewness (step S5), and then proceeds to step S6.

  In step S6, the vehicle-mounted device 2 generates data having a data structure as shown in FIG. As shown in the drawing, the data structure generated by the on-vehicle device 2 stores an intersection frame F1 for storing position information for specifying an intersection determined to be a small turn, and information on whether or not the vehicle has made a small right turn at the intersection. It includes a small turning frame F2 and a trajectory frame F3 for storing information about a right-turn trajectory.

  The in-vehicle device 2 stores the position information for specifying the intersection that has turned right in the intersection frame F1. Note that the position information may be the position information of the vehicle 4 when the vehicle 4 turns right (that is, when the small turning right determination process is executed), or may be obtained from the map data based on the position information of the vehicle 4. The position information of the intersection may be used. When the position information of the vehicle 4 is stored in the intersection frame F1, the server device 3 obtains the position information of the intersection from the map data based on the position information.

  If the in-vehicle device 2 determines that it is a small turn right in step S2, the in-vehicle device 2 stores the small turn information indicating the small turn right in the small turn frame F2 and stores the comparison information obtained in step S3 in the locus frame F3. When the in-vehicle device 2 determines that the right turn is not a small turn right in step S2, the in-vehicle device 2 stores non-small turn information indicating that no small turn right is made in the small turn frame F2, and stores the skewness obtained in step S5 in the locus frame. Store it in F3.

  Further, the data structure may further include a sensor frame F4, an environment information frame F5, and a time frame F6. In the sensor frame F4, sensor information acquired from a sensor (a speed sensor 25B, an acceleration sensor, a camera, and the like, not shown) mounted on the vehicle 4 is stored. The environment information frame F5 stores environment information around the intersection. The environmental information includes the flow rate of vehicles passing through the intersection, the weather information of the intersection, the traffic signal information of the intersection (whether there is a traffic light, the presence of a right turn traffic light), the scale of the city where the intersection exists (urban area, rural area, etc.), The road type of the intersection (national road, narrow street, etc.) can be considered. The in-vehicle device 2 acquires the flow rate of the intersection, the weather information of the intersection, and the environmental information of the intersection by, for example, analyzing image data of a camera. The time frame F6 stores time information of a right turn at an intersection.

  Thereafter, the on-vehicle device 2 transmits the data having the data structure shown in FIG. 10 generated and stored in the recording device 23 to the server device 3 (Step S7), and causes the server 3 to execute the urgency determination process shown in FIG. (Step S8), the process ends. The control unit 31 of the server device 3 (hereinafter simply referred to as the server device 3) records the data shown in FIG. When the position information of the vehicle 4 is stored in the intersection frame F1, the server device 3 obtains the position information of the intersection from the map data based on the position information, and rewrites the obtained position information into the obtained position information and records it on the recording device 31. I do.

  As described above, the server device 3 functions as an acquisition unit, and from the plurality of vehicles 4 that have turned right at the intersection, the turn information (right turn information) indicating that the vehicle has made a short turn right at the intersection or the fact that the turn has not been made. The non-small turn information and the position information for specifying the position of the intersection are acquired and recorded in the recording device 31.

  Next, an intersection data generation process executed by the server device 3 will be described with reference to FIG. The server device 3 executes the intersection data generation processing at a predetermined timing, such as at a timing at which data including the determination result of the small turn right from the vehicle-mounted device 2 is received for a predetermined amount or more, or at a predetermined timing. In the intersection data generation process, the server device 3 obtains an aggregate of data having the data structure illustrated in FIG. 10 including the determination result recorded in the recording device 31 (Step S11). Next, the server device 3 functions as a generation unit, generates statistical information on a small turn right at each intersection based on the aggregate of data acquired in step S11, and records the generated statistical information in the recording device 31. (Step S12).

  The statistical information is, for example, information indicating what percentage of the vehicle 4 that turns right at the intersection (the vehicle 4 that has transmitted the data) makes a small right turn or what percentage is a right turn that is not a small right turn. In this embodiment, the statistical information is obtained for each time zone (for each time zone). As shown in FIG. 12, the server device 3 records the location information for identifying the intersection, the time zone, and the statistical information in the recording device 31 in association with each other. In this embodiment, an example in which position information for specifying an intersection is described. However, any information that can specify an intersection may be used, and an ID of the intersection may be recorded instead of the position information. Is also good.

  Next, the urgency determination processing executed by the on-vehicle device 2 will be described below with reference to FIG.

  The urgency determination process is executed each time it is determined that the vehicle 4 has turned right at the intersection in the small turn determination process (Y in step S1 in FIG. 9). In the urgency determination process, the in-vehicle device 2 functions as a first acquisition unit and transmits a statistical information transmission command to the server device 3 (Step S21). The transmission command includes, for example, the position information of the intersection (that is, the intersection where the host vehicle 4 turns right) transmitted in step S7 of the small turn determination process. Upon receiving the transmission command, the server device 3 functions as an output unit, reads the position information of the intersection included in the transmission command and the statistical information for the current time zone included in the transmission command, and transmits the transmission command to the vehicle-mounted device. 2

  When the in-vehicle device 2 receives the statistical information (Y in Step S22), it functions as a second obtaining unit, and obtains information on whether or not the vehicle has made a small turn right from the data shown in FIG. Step S23). Next, the in-vehicle device 2 functions as an evaluation unit, and evaluates the operation of the host vehicle 4 based on the received statistical information and the acquired information on whether or not the vehicle has turned right (step S24). In step S24, when it is determined that the vehicle 4 has made a small turn right, the in-vehicle device 2 calculates an evaluation value weighted according to the statistical information at the intersection. For example, the score when making a small turn right is “1”, the statistical information indicates that the frequency of small turn right is 20%, 1 × (1-0.2) is the evaluation value, and if the frequency is 10%, the score is 1 × (1-0.1) is used as the evaluation value.

  The in-vehicle device 2 may function as a third or fourth acquisition unit, acquire a trajectory mode or acceleration, and calculate an evaluation value based on the trajectory mode or acceleration. At this time, the in-vehicle device 2 increases the score if the form of the trajectory is such that the size or kurtosis of the preceding peak is larger than the later peak by a predetermined value or more as described with reference to FIGS. Or increase the weight to increase the evaluation value. Also, when there is sudden acceleration, the score is increased or the weight is increased to increase the evaluation value. Furthermore, if the form of the trajectory is such that the size of the preceding peak is smaller than the predetermined value or the kurtosis is smaller than the predetermined value, the vehicle-mounted device 2 may reduce the score or reduce the weight to reduce the evaluation value. It may be smaller. If there is no sudden acceleration, the score may be reduced or the weight may be reduced to reduce the evaluation value.

  The in-vehicle device 2 sets the evaluation value to 0 when it is determined that the vehicle 4 does not make a small turn right. However, when the skewness is large or when there is a sudden acceleration, the evaluation value may be set to be larger than 0. Further, the on-vehicle device 2 calculates a value obtained by integrating the evaluation values obtained for each intersection as an integrated evaluation value (Step S25). In step S25, specifically, the vehicle-mounted device 2 adds the evaluation value calculated in the current focus determination process to the integrated evaluation value calculated in the previous focus determination process.

  If the integrated evaluation value does not exceed the certain value (N in step S26), the vehicle-mounted device 2 immediately ends the processing. On the other hand, when the integrated evaluation value exceeds a certain value (Y in step S26), the in-vehicle device 2 notifies the user of the fact by, for example, displaying it on a display (not shown) (step S27). Further, the on-vehicle device 2 functions as a route search unit. If the route guidance is being performed, the route search condition is changed and the route is rerouted (step S28), and the process ends.

  In step S28, the in-vehicle device 2 re-searches for an intersection with a right-turn arrow signal and a route with a low degree of stress through a large road.

  It is considered that the driver turns impatiently to make a small turn right at an intersection where small turn right does not frequently occur. On the other hand, it is considered that a small turn right at an intersection where a small turn right frequently occurs often depends on the environment of the intersection regardless of the driver's impatience. According to the present embodiment, the in-vehicle device 2 evaluates the driving of the own vehicle 4 based on the statistical information of the small turn right and whether or not the own vehicle 4 actually makes the small turn right. Thereby, driving evaluation can be performed based on the driver's psychology such as impatience.

  Further, according to the present embodiment, the in-vehicle device 2 acquires statistical information from the server device 3 every time the vehicle turns right (passes) at the intersection. Thus, the driving evaluation can be performed every time the vehicle turns right at the intersection.

  Further, according to the present embodiment, when it is determined that the own vehicle 4 has made a small turn right, the in-vehicle device 2 evaluates the driving of the own vehicle by weighting according to the statistical information at the intersection. As a result, the driving evaluation can be performed with higher accuracy.

  Further, according to the present embodiment, the in-vehicle device 2 evaluates the driving of the own vehicle 4 based on the mode of the trajectory when making a small turn right. As a result, the driving evaluation can be performed with higher accuracy.

  Further, according to the present embodiment, the vehicle-mounted device 2 evaluates the driving of the own vehicle 4 based on the acceleration. As a result, the driving evaluation can be performed with higher accuracy.

  Further, according to the present embodiment, the in-vehicle device 2 performs the route search based on the statistical information and whether or not the vehicle has turned right. This makes it possible to perform a route search, such as guiding a route with less stress, based on the driver's psychology such as impatience.

  Further, according to the above-described embodiment, the statistical information can be obtained for each time zone. As a result, it is possible to perform driving evaluation with higher accuracy, or to search for a more appropriate route.

  Further, according to the above-described embodiment, the server device 3 acquires, from the plurality of vehicles 4, the small turn right information indicating that the vehicle 4 has made a small right turn at the intersection and the position information for specifying the position of the intersection. Then, based on the plurality of acquired small turn right information and position information, statistical information on small turn right at each intersection is generated. As a result, it is possible to generate statistical information that a small turn is made at each intersection.

  Further, according to the above-described embodiment, in the recording device 31 of the server device 3, the intersection data indicating the intersection includes the statistical information on the small turning right of the vehicle 4 at each intersection. Thereby, it is possible to provide data in which statistical information indicating that the vehicle has made a small turn right at the intersection is linked to the intersection data indicating the intersection.

(Second embodiment)
Next, an information processing method according to a second embodiment of the present invention will be described. The system 1 that implements the information processing method of the second embodiment is equivalent to the system 1 described in the first embodiment, and a detailed description is omitted here. The major difference between the first embodiment and the second embodiment is that, in the first embodiment, the in-vehicle device 2 functions as an information processing device and performs driving evaluation. 3 is that it functions as an information processing device and performs driving evaluation.

  Next, the operation of the system 1 of the second embodiment will be described. First, the in-vehicle device 2 executes the small turning determination process of FIG. 9 as in the first embodiment. The difference from the small turning determination process of the first embodiment is that the vehicle-mounted device 2 transmits data to which its own ID is added in step S7. In the second embodiment, the processing in step S8 is not performed.

  The server device 3 performs an intersection data generation process as in the first embodiment. Further, the server device 3 functions as first to third acquisition units, and upon receiving the data shown in FIG. 10 and the ID of the in-vehicle device 2 from the in-vehicle device 2, executes the urgency determination process shown in FIG.

  In the urgency determination process shown in FIG. 14, the server device 3 reads statistical information corresponding to the intersection position information and the time information included in the data from the recording device 31 (step S31). Thereafter, the server device 3 functions as an evaluation unit, and based on the read statistical information and the information on whether or not the vehicle has made a small turn right included in the received data, the specific vehicle 4 (the in-vehicle device 2 as the data transmission source The operation of the mounted vehicle 4) is evaluated (step S32). In step S32, the server device 3 operates in the same manner as in the evaluation of the operation performed by the vehicle-mounted device 2 in the first embodiment (step S23 in FIG. 13), and a detailed description thereof will be omitted here.

  Thereafter, the server device 3 calculates a value obtained by integrating the evaluation values of the specific vehicle 4 obtained for each intersection as an integrated evaluation value (Step S33). In step S33, specifically, the server device 3 adds the evaluation value calculated in the current determination process to the integrated evaluation value calculated in the previous determination process executed for the specific vehicle 4.

  If the integrated evaluation value does not exceed the certain value (N in step S34), the server device 3 immediately ends the processing. On the other hand, when the integrated evaluation value exceeds a certain value (Y in step S34), the server device 3 transmits notification data for notifying the fact to the in-vehicle device 2 mounted on the specific vehicle 4 (step S34). S35), the process ends.

  The in-vehicle device 2 that has received the notification data addressed to itself notifies it by displaying it on a display (not shown). Similarly to the first embodiment, if the route is being guided, the route is changed while changing the route search condition.

  As described in the second embodiment, even if the server device 3 evaluates the driving of the specific vehicle 4 based on the statistical information of the small turn right and whether or not the specific vehicle 4 has actually turned the short turn, The same effect as that of the embodiment can be obtained.

  In the above-described embodiment, the statistical information indicates the frequency of the small turn right such as the percentage of the small turn right of the vehicle 4 that has made a right turn at the intersection (the vehicle 4 that transmitted the data). It is not limited. The statistical information may be the number of times the vehicle turns right, that is, the total number of vehicles 4 that make a small right turn.

  In the above-described embodiment, one piece of statistical information is generated for each intersection. However, the present invention is not limited to this. As shown in FIG. 15, at the intersection, there are a plurality of right-turn routes as indicated by arrows. Therefore, statistical information may be generated for each right turn route. In this case, the in-vehicle device 2 determines the right-turn route at the time of the small-turn determination process, and includes the right-turn route in the data transmitted to the server device 3. The right turn route can be determined based on the position information from the GPS receiver 20A and the information from the direction sensor 25B.

  In the above-described embodiment, the in-vehicle device 2 transmits the data shown in FIG. 10 including the determination result to the server device 3 every time the small turn is determined based on the output of the direction sensor 24. It is not limited. The timing of transmission to the server device 3 may be any time, and a plurality of data may be transmitted collectively.

  Further, in the above-described embodiment, the data including the non-small turn information is transmitted even when the small-turn right is not turned, but the present invention is not limited to this. Only the data including the turn information may be transmitted. In this case, the in-vehicle device 2 does not need to determine whether or not the vehicle is turning right at the intersection as in the above embodiment. The on-vehicle device 2 functions as a second determination unit, and may only determine whether the vehicle 4 is moving at the intersection. The vehicle-mounted device 2 may perform a small turn based on the output of the direction sensor 24 while it is determined that the vehicle 4 is moving at the intersection. A right turn determination may be made.

  The determination as to whether or not the vehicle is moving at the intersection can be made with reference to the current position of the vehicle 4 obtained by the GPS receiver 25A and the map data recorded in the recording device 23 as described above. As described above, when making a small turn right determination while traveling at an intersection instead of making a right turn, there are two types of determinations that a small turn right is not made: a right turn that is not a small turn right (recommended right turn); This includes the case where the vehicle goes straight ahead and turns left. However, there is no problem when only the small turn information is transmitted.

  Further, in the above-described embodiment, the in-vehicle device 2 determines the small turn right, but the present invention is not limited to this. For example, the in-vehicle device 2 may transmit the output of the azimuth sensor 24 to the server device 3, and may make a small turn determination based on the output of the azimuth sensor 24 received by the server device 3.

  Further, in the above-described embodiment, the vehicle-mounted device 2 generates and transmits data including sensor information, environment information, and time information. However, the present invention is not limited to this. It is not essential to include sensor information, environmental information, and time information in the data.

  Further, in the above-described embodiment, the in-vehicle device 2 performs the small turn determination based on the output of the direction sensor 24, but the invention is not limited to this. The small turn determination may be performed based on the travel locus, for example, by determining the travel locus from the current position information obtained from the GPS receiver 25A. That is, the in-vehicle device 2 determines that the vehicle is on a small turning right if the traveling locus travels on a route that is at least the threshold from the center O1 of the intersection, and is not a small turning right if the traveling locus is on a route that is less than the threshold from the center O1. May be determined.

  Note that the present invention is not limited to the above embodiment. That is, various modifications can be made without departing from the gist of the present invention.

2 Onboard equipment (information processing device)
3 server device (information processing device)
4 vehicle (mobile)
21 control unit (first acquisition unit, second acquisition unit, third acquisition unit, fourth acquisition unit, evaluation unit, route search unit)
31 Recording device (storage unit)
32 control unit (acquisition unit, generation unit, output unit, first acquisition unit, second acquisition unit, third acquisition unit, evaluation unit, route search unit)

Claims (9)

A data structure of intersection data indicating an intersection,
A data structure including statistical information on a small right turn of a moving object at each intersection.   The data structure of claim 1, further comprising an ID of the intersection.   The data structure according to claim 1 or 2, further comprising position information of the intersection.   The data structure according to any one of claims 1 to 3, wherein the statistical information includes the number of small turns.   The data structure according to any one of claims 1 to 3, wherein the statistical information includes a frequency of a small turn.   The data structure according to any one of claims 1 to 3, wherein the statistical information includes a frequency of a small right turn in each time zone.   The data structure according to any one of claims 1 to 6, further comprising statistical information for each right turn route at the intersection.   A recording medium for recording data having the data structure according to claim 1.   A recording apparatus for recording data having the data structure according to claim 1.

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