JP7414599B2 - Point guidance system, point management system, point guidance program, and point management program - Google Patents

Description

The present invention relates to a point guidance system, a point management system, a point guidance program, and a point management program.

2. Description of the Related Art Conventionally, techniques are known that issue a warning when sudden braking occurs in a vehicle. Patent Document 1 discloses a technique for issuing a warning when a vehicle that suddenly brakes is present in front of a vehicle to be warned.

Japanese Patent Application Publication No. 2004-348430

Causes of sudden braking include temporary causes such as a small animal jumping out, as well as causes that affect nearby vehicles for a certain period of time, such as traffic jams or falling objects on the road. As described above, the importance of sudden braking information for users traveling in nearby vehicles differs depending on the cause of the sudden braking. However, in the prior art, these have not been taken into account.

The present invention has been made in view of the above problems, and an object of the present invention is to increase the possibility of implementing guidance according to the importance of sudden braking of a vehicle.

In order to achieve the above object, the point guidance system of the present invention includes an acquisition section that acquires a sudden braking point where sudden braking by a vehicle is detected, and a guide section that guides the sudden braking point existing on the planned travel route. a guidance control unit that detects the sudden brake within a detection area set with the sudden braking point as a reference, and detects the sudden brake within a predetermined detection period within the detection area. If the number of times the sudden brake is applied is equal to or more than the number threshold, the sudden braking point is guided more emphatically than when the number of times is less than the number threshold , and the detection period is the time when the sudden brake was last detected. the previous period, and the guidance control unit causes the sudden braking point to be guided if a predetermined valid period has not elapsed since the last sudden braking was detected, When the number of sudden brakes performed is equal to or greater than the number threshold, the valid period is made longer than when the number is less than the number threshold.

Furthermore, in order to achieve the above object, the point management system of the present invention includes a sudden braking point identifying section that identifies a sudden braking point where sudden braking by a vehicle is detected, and a point guidance system that is scheduled to pass through the sudden braking point. a guide instruction section that instructs the driver to guide the driver to the sudden braking point, and the guide instruction section is configured to detect the sudden braking within a detection area set with the sudden braking point as a reference, If the number of sudden brakings detected within a predetermined detection period is equal to or greater than the number threshold, an instruction is given to guide the sudden braking point more emphatically than when the number of times is less than the number threshold; includes the point in time when the sudden brake was last detected, and the guidance instruction section determines the sudden braking point if a predetermined valid period has not elapsed since the last sudden brake was detected. If the number of sudden brakings detected within the detection area within the detection period is equal to or greater than the number threshold value, the effective period is made longer than if the number of sudden brakings is less than the number threshold value.
Further, the point management system of the present invention includes a sudden braking point identification unit that identifies a sudden braking point where sudden braking by a vehicle is detected, and a point guidance system that guides the sudden braking point to a point where the sudden braking point is scheduled to be passed. and a guidance instruction section for instructing that the sudden brake is detected within a detection area set with the sudden braking point as a reference, and within a predetermined detection period within the detection area. If the number of times the sudden braking is detected is equal to or greater than the number threshold, the instruction is given to guide the sudden braking point more emphatically than when the number of times is less than the number threshold, and the progress of the vehicle where the sudden braking is detected is The guidance instruction section of the point guidance system further includes a traveling direction identification section that identifies a direction, and the guidance instruction section of the point guidance system in which movement in the same direction as the traveling direction of the vehicle is detected, guides the sudden braking point, and guides the sudden braking point. further comprising a deceleration evaluation unit that evaluates a deceleration of the vehicle, and when the deceleration is less than a deceleration threshold, the sudden brake is applied to the point guidance system where movement in the same direction as the traveling direction of the vehicle is detected. In the point guidance system, when a point is guided and the deceleration is equal to or greater than the deceleration threshold, movement along the same direction as the traveling direction of the vehicle or movement along the opposite direction is detected; The sudden braking point is guided;

In addition, in order to achieve the above object, the point guidance program of the present invention includes a computer, an acquisition section that acquires a sudden braking point where sudden braking by a vehicle has been detected, and the sudden braking point existing on the planned travel route. The guide control unit functions as a guide control unit that causes the guide unit to guide the sudden brake, and the guide control unit detects the sudden brake within a detection area set with the sudden braking point as a reference, If the number of sudden brakes detected within the detected detection period is equal to or greater than the number threshold, the sudden braking point is guided more emphatically than when it is less than the number threshold; The period is before the sudden braking is detected, and the guidance control unit causes the guidance control unit to guide the sudden braking point if a predetermined effective period has not elapsed since the last sudden braking was detected. If the number of sudden brakings detected within the detection area is equal to or greater than the number threshold, the valid period is made longer than when the number is less than the number threshold.

In addition, in order to achieve the above object, the point management program of the present invention includes a computer that includes a sudden braking point specifying section that specifies a sudden braking point where sudden braking by a vehicle is detected, and a sudden braking point specifying section that specifies a sudden braking point where sudden braking by a vehicle is detected, and The guide instruction section is configured to function as a guidance instruction section that instructs the point guidance system to guide the sudden braking point, and the guidance instruction section is configured to detect when the sudden braking is detected within a detection area set with the sudden braking point as a reference. If the number of times the sudden braking is detected within a predetermined detection period within the area is equal to or greater than the number threshold, the system instructs the driver to guide the sudden braking point more emphatically than when the number of times is less than the number threshold; The detection period includes the time when the sudden brake was last detected, and the guidance instruction unit detects the sudden brake if a predetermined valid period has not elapsed since the last sudden brake was detected. If the number of sudden brakings detected within the detection area within the detection period is equal to or greater than the number threshold value, the effective period is made longer than if the number of sudden brakings is less than the number threshold value.

The point guidance system, point management system, point guidance program, and point management program guide the emergency braking point more emphatically when the number of times of sudden braking is equal to or greater than the number threshold value than when the number of times is less than the number threshold value. In this way, by varying the degree of guidance emphasis depending on the number of times of sudden braking, it is possible to increase the possibility of providing guidance in accordance with the importance of sudden braking of the vehicle.

FIG. 1 is an overall diagram of a system according to a first embodiment. The figure which shows the structure of a point management system. FIG. 3A is a diagram showing an example of the data structure of a sudden brake table. FIG. 3B is a diagram illustrating an example data structure of a user table. FIG. 3C is a diagram illustrating an example data structure of an instruction information table. FIGS. 4A and 4B are explanatory diagrams of the process of extracting registered emergency brakes. FIG. 5A is an explanatory diagram of the first guide. FIG. 5B is an explanatory diagram of the second guide. FIG. 1 is a diagram showing the configuration of a point guidance system. Flowchart showing point setting processing. 5 is a flowchart showing instruction information management processing and point guidance processing. The figure which shows the structure of the point management system based on 2nd Embodiment. FIG. 7 is a diagram showing the configuration of a point guidance system according to a second embodiment. The figure which shows the data structure example of an instruction information table. 7 is a flowchart showing point management processing according to the second embodiment. 7 is a flowchart showing instruction information generation processing according to the second embodiment. 7 is a flowchart showing instruction information management processing according to the second embodiment.

Here, embodiments of the present invention will be described in the following order.
(1) System configuration of the first embodiment:
(2) Processing by the system of the first embodiment:
(3) System configuration of the second embodiment:
(4) Processing by the system of the second embodiment:
(5) Other embodiments:

(1) System configuration of the first embodiment:
FIG. 1 is an overall diagram of a system according to a first embodiment. The system of this embodiment includes a point management system 10 and a point guidance system 20. The point management system 10 is, for example, a stationary general-purpose computer or a cloud-type external server. The point guidance system 20 is, for example, a portable information processing device such as a smartphone that can be carried by a user. It is assumed that the user carries the point guidance system 20 and travels in a vehicle. It is assumed that the point management system 10 and the point guidance system 20 are communicably connected wirelessly via a network.

When a sudden brake occurs in the vehicle A, the point management system 10 detects this and informs the point guidance system 20b carried by the user riding in the following vehicle B of the occurrence of the sudden brake. Note that hereinafter, a vehicle in which sudden braking occurs will be referred to as a sudden braking vehicle.

FIG. 2 is a diagram showing the configuration of the point management system 10. The point management system 10 includes a control section 120 including a CPU, RAM, ROM, etc., a recording medium 130, and a communication section 140. The communication unit 140 is a device for performing wireless communication with an external device, and the control unit 120 can communicate with the point guidance system 20 via the communication unit 140.

The control unit 120 can execute various programs stored in the recording medium 130 or ROM. The control unit 120 of this embodiment can execute the point management program 121 as one of the programs. When a sudden braking vehicle is detected by the processing of the point management program 121, the control unit 120 guides the vehicle to nearby vehicles.

The recording medium 130 stores map information 130a, a sudden brake table 130b, a user table 130c, and an instruction information table 130d. The map information 130a includes node data indicating the position of a node corresponding to an end point of a road section, shape interpolation point data indicating the position of a shape interpolation point for specifying the shape of a road between nodes, and links connecting nodes. Contains link data indicating the Here, a node corresponds to an intersection, and a link corresponds to a road section from one intersection to another. The map information 130a is used for identifying the location of a vehicle, searching for a route to a destination, providing route guidance, and the like. In this embodiment, the link data includes information indicating the direction in which the vehicle can travel on the road section indicated by the link data. Further, the link data includes information indicating the structure of lanes existing on the road. The lane structure indicates the number of lanes in which a vehicle can travel in each direction of travel.

FIG. 3A is a diagram showing an example of the data structure of the sudden brake table 130b. The sudden braking table 130b stores sudden braking points and sudden braking occurrence times in association with each other. The sudden braking point is a point where sudden braking occurs. When sudden braking is detected in the point management system 10, the control unit 120 associates the occurrence time of the detected sudden braking with the sudden braking point and registers them in the sudden braking table 130b.

FIG. 3B is a diagram showing an example of the data structure of the user table 130c. The user table 130c stores user IDs and movement histories in association with each other. Here, the user ID is information that identifies the user of the point guidance system 20. Furthermore, the movement history is information indicating changes in the position and acceleration of the point guidance system 20 over time. In this embodiment, movement information received from the point guidance system 20 is stored as the movement history. Here, the movement information is information that associates the position and acceleration detected by the point guidance system 20 with their detection times. Here, the acceleration is an acceleration in a positive direction and a negative direction when the traveling direction of the point guidance system 20 is set as a positive direction. In the user table 130c, a plurality of pieces of movement information related to different detection times are stored as movement history in association with user IDs.

In this embodiment, it is assumed that the user of the point guidance system 20 is riding in a vehicle. Therefore, the position and acceleration indicated in the movement information can be assumed to be the position and acceleration of the vehicle in which the user rides. Movement information is periodically transmitted from the point guidance system 20, and in response, a plurality of pieces of movement information are accumulated as a movement history for the same user ID. Furthermore, the user table 130c stores a plurality of movement histories in association with the respective user IDs of the plurality of users.

FIG. 3C is a diagram showing an example of the data structure of the instruction information table 130d. The instruction information table 130d stores instruction information, the time of occurrence of sudden braking, a valid period, and transmission target conditions in association with each other. Here, the instruction information is information that instructs the point guidance system 20 to guide the sudden braking point. The occurrence time is the time when the sudden brake related to the instruction information occurs. The valid period is a period during which guidance according to the instruction information is valid. Note that the valid period is a period counted starting from the time of occurrence. The instruction information and the information associated with the instruction information are deleted from the instruction information table 130d after the validity period has passed. The transmission target condition is a condition for specifying the point guidance system 20 to which the instruction information is to be transmitted. Processing using the instruction information, transmission target conditions, and instruction information table 130d will be described in detail later. Registration and deletion of instruction information and information associated therewith are managed by the control unit 120.

The point management program 121 executed by the control section 120 of the point management system 10 includes a movement information receiving section 121a, a sudden braking point specifying section 121b, a registered sudden braking extracting section 121c, in order to manage sudden braking points. It includes a deceleration evaluation section 121d, a traveling direction identification section 121e, and a guidance instruction section 121f.

The movement information receiving unit 121a is a program module that causes the control unit 120 to implement a function of periodically receiving movement information from the point guidance system 20 via the communication unit 140. The control unit 120 performs the following processing using the function of the movement information receiving unit 121a. The point management system 10 manages a plurality of point guidance systems 20, and the control unit 120 periodically receives movement information from each of the plurality of point guidance systems 20 to be managed. The movement information is associated with the user ID of the point guidance system 20 that is the transmission source. The control unit 120 records the received movement information in the user table 130c in association with the user ID received together with the movement information.

The sudden braking point specifying section 121b is a program module that causes the control section 120 to implement a function of specifying a sudden braking point. The control unit 120 performs the following processing using the function of the sudden braking point specifying unit 121b. The control unit 120 determines the sudden braking of the vehicle in which the user of the point guidance system 20 that is the transmission source of the movement information rides based on the acceleration indicated in the movement information received by the function of the movement information reception unit 121a. Specifically, the control unit 120 first extracts the deceleration from the movement information. Here, the deceleration is the magnitude of acceleration in the direction opposite to the traveling direction of the point guidance system 20. That is, the deceleration matches the magnitude of the negative acceleration when the acceleration in the direction of travel is taken as a positive value. The control unit 120 detects sudden braking when the deceleration is equal to or greater than the sudden braking determination threshold. Here, the sudden brake determination threshold is a preset deceleration threshold. When sudden braking is detected, the control unit 120 specifies the position indicated in the movement information as the point where the detected sudden braking occurred, that is, the sudden braking point. The control unit 120 further acquires the detection time indicated in the movement information as the sudden braking occurrence time. The control unit 120 registers the sudden braking point and the time of occurrence in the sudden braking table 130b in association with each other. Note that the control unit 120 performs sudden braking determination based on the latest movement information at the timing when movement information is obtained by the function of the sudden braking point specifying unit 121b.

The registered sudden brake extracting unit 121c is a program that causes the control unit 120 to realize a function of extracting a registered sudden brake (registered sudden brake) corresponding to the sudden braking point specified by the function of the sudden braking point specifying unit 121b. It is a module. Here, the registered sudden brake is a sudden brake detected before the sudden brake detected by the sudden brake point specifying unit 121b, and is a sudden brake that has been registered in the sudden brake table 130b.

The control unit 120 performs the following processing using the function of the registered sudden brake extraction unit 121c. The control unit 120 first sets a detection area. Here, the detection area is an area based on the sudden braking point specified by the function of the sudden braking point specifying section 121b. Preferably, the detection area is an area including a sudden braking point. In this embodiment, the detection area is an area whose center is the sudden braking point and whose radius is a predetermined distance. Note that, from the viewpoint of extracting suddenly braking vehicles related to sudden braking caused by the same cause, the predetermined distance is preferably a distance on the order of several tens of meters. For example, a range up to 30 meters from the sudden braking point is set as the detection area. In this way, the control unit 120 sets an area where sudden braking may occur due to the same cause as a detection area.

The control unit 120 further sets a detection period. Here, the detection period is a certain period of time before the sudden braking occurrence time detected by the function of the sudden braking point specifying unit 121b, that is, the last time sudden braking was detected. The fixed period is, for example, one minute. That is, the period from the time when sudden braking was last detected to the time one minute before that time is set as the detection period. The control unit 120 refers to the sudden brake table 130b and extracts a sudden brake whose occurrence time is included in the detection period and whose sudden braking point is within the detection range as a registered sudden brake.

As shown in FIG. 4A, it is assumed that there is a fallen object P on the road, and that vehicles Q and R traveling on this road suddenly brake in this order. In this case, information related to sudden braking of vehicles Q and R is registered in the sudden braking table 130b. In this state, as shown in FIG. 4B, it is assumed that sudden braking occurs in the following vehicle S due to the falling object P. In this case, the control unit 120 detects sudden braking of the vehicle S using the function of the sudden braking point specifying unit 121b. Then, the control unit 120 sets a detection area 300 centered on the sudden braking point of the vehicle S using the function of the registered sudden brake extraction unit 121c. If the sudden braking points T1 and T2 of vehicles Q and R are included in the detection area, and the occurrence time of sudden braking of each vehicle Q and R is within the detection period, the sudden braking by vehicles Q and R is registered as a registered sudden brake. Extracted.

The deceleration evaluation unit 121d is a program module that causes the control unit 120 to implement a function of evaluating the deceleration of the suddenly braked vehicle obtained by the function of the control unit 120. The control unit 120 performs the following processing using the function of the deceleration evaluation unit 121d. The control unit 120 refers to the acceleration included in the movement information of the point guidance system 20 that supports the latest sudden braking vehicles, and sets the deceleration level to a high level when the negative acceleration, that is, the deceleration is equal to or higher than the deceleration threshold. judge. Further, the control unit 120 determines the deceleration level to be a low level when the deceleration is less than the deceleration threshold. Here, the deceleration threshold is a value where the deceleration is greater than the sudden braking determination threshold.

The traveling direction specifying section 121e is a program module that causes the control section 120 to implement a function of specifying the traveling direction of the suddenly braked vehicle detected by the function of the sudden braking point specifying section 121b. The control unit 120 performs the following processing using the function of the traveling direction specifying unit 121e. The control unit 120 determines the traveling direction based on the time change in the position by referring to the latest movement information of the point guidance system 20 corresponding to the sudden braking vehicle and the past movement information registered in the user table 130c. Identify. The control unit 120 further refers to the map information 130a, corrects the traveling direction to a direction along the road, and specifies the corrected traveling direction as the traveling direction of the suddenly braking vehicle.

The guidance instruction section 121f instructs the control section 120 to instruct the point guidance system 20 corresponding to the vehicle scheduled to travel through the sudden braking point detected by the function of the sudden braking point identifying section 121b to guide the sudden braking point. It is a program module that realizes this. Here, the guidance is guidance that sudden braking has occurred. The control unit 120 performs the following processing using the function of the guidance instruction unit 121f. The control unit 120 first determines the type of guidance. If no registered emergency braking vehicle is extracted by the function of the registered emergency braking extraction section 121c, the control section 120 determines the type of guidance to be the first guidance. If a registered emergency braking vehicle is extracted, the control unit 120 determines the type of guidance to be the second guidance. Here, the second guidance emphasizes the occurrence of sudden braking more than the first guidance.

FIG. 5A is an explanatory diagram of the first guide. The first guidance is, for example, a character string such as "!! There is a vehicle braking suddenly ahead" displayed as an icon with a white background on the map information display. Furthermore, the first guidance is to output a notification sound "Pong" to a speaker serving as a guidance section 280 (to be described later) of the point guidance system 20. 5B is an explanatory diagram of the second guide. The second guidance, for example, displays a character string such as "!! There is a vehicle braking suddenly ahead. Please reduce your speed and drive with caution." as an icon with a yellow background. It is something. Furthermore, the second guidance causes the speaker of the point guidance system 20 to output a notification sound of "popon". In this way, the second guidance is more emphasized than the first guidance, and provides a higher degree of warning to the user.

When sudden braking is detected only once, there is a high possibility that the cause of the sudden braking is temporary, such as a small animal or a person jumping out. In this case, guidance of the sudden braking point is not so important for the following vehicle. On the other hand, if sudden braking is detected multiple times in the detection area, for example, there is a fallen object such as a tire on the road, which has a large effect on the following vehicle, and the sudden braking is difficult for the following vehicle. Location information will be important. Therefore, the point management system 10 of the present embodiment is configured to perform control so that when the number of times of sudden braking is multiple, the guidance is more emphasized than when the number of times of sudden braking is only one.

That is, in the present embodiment, when the number of sudden brakes detected within the detection area within the detection period is two or more, the control unit 120 emphasizes the sudden braking point more than when the number of sudden brakes is less than two. Instruct them to guide you. Here, 2 times is a value set in advance as the number of times threshold. If a registered sudden braking vehicle is extracted, the sudden braking must be detected two or more times within the detection area within the detection period, together with the sudden braking identified by the function of the sudden braking point identification unit 121b. I understand. That is, when a sudden brake is detected, determining whether there is a corresponding registered sudden brake is the same as determining whether the number of times of sudden braking is equal to or greater than the number threshold value (two times).

Returning to FIG. 2, the control unit 120 further performs the following processing using the function of the guidance instruction unit 121f. The control unit 120 generates instruction information that instructs the guide unit 280 of the point guidance system 20, which will be described later, to provide the determined type of guidance. The instruction information includes information indicating which guidance, the first guidance or the second guidance, is to be performed, and the sudden braking point. Furthermore, the control unit 120 sets a validity period for the instruction information. Here, the effective period is a period during which guidance can be executed, and the starting point is the time when sudden braking occurs. When the first guidance is designated, the first period is set as the valid period. When the second guidance is specified, the second period is set as the valid period. Here, the second period is longer than the first period. It is assumed that the first period and the second period are determined in advance. For example, the first period and the second period are set to 1 minute and 5 minutes, respectively.

The control unit 120 further sets conditions for transmitting the instruction information. When a low level is set as the deceleration level by the function of the deceleration evaluation unit 121d, the control unit 120 sets the first condition as the transmission target condition. When a high level is set as the deceleration level by the function of the deceleration evaluation unit 121d, the control unit 120 sets the second condition as the transmission target.

The first condition and the second condition each include two conditions, as shown below.

<First condition>
・Exist within the guidance area ・Moving direction is the same as the traveling direction of the suddenly braking vehicle

<Second condition>
・Exists within the guidance area ・The direction of movement is the same as or opposite to the direction of travel of the suddenly braking vehicle

Here, the guide area is an area up to a predetermined distance from the latest sudden braking point. Note that the predetermined distance is predetermined. For example, 500 m is set as the predetermined distance.

Note that when comparing the traveling direction of the suddenly braked vehicle with the moving direction of the point guidance system 20, the control unit 120 first refers to the user table 130c and calculates the time of the position indicated in the movement information of the point guidance system 20. Determine the direction of movement from the change. The control unit 210 further refers to the map information 130a to correct the movement direction to the direction in which the road corresponding to the position indicated by the movement information extends. Then, the control unit 120 performs a comparison with the moving direction of the point guidance system 20. Thereby, the direction along the road can be determined.

The control unit 120 associates the instruction information, the time of occurrence of sudden braking related to the instruction information, the validity period set for the instruction information, and the transmission target condition, and registers them in the instruction information table 130d. The control unit 120 monitors the elapsed time from the corresponding generation time for each instruction information registered in the instruction information table 130d. Then, if there is instruction information that has exceeded the validity period, the control unit 120 instructs the instruction information that has exceeded the validity period, the generation time, the validity period, and the transmission target conditions associated with the instruction information. It is deleted from the information table 130d.

Further, when the instruction information is registered in the instruction information table 130d, the control unit 120 receives the movement information based on the position in the movement information periodically received from each point guidance system 20 and the change in the position over time. Based on the position of the movement information received by the unit 121a function, it is determined whether there is a point guidance system 20 that satisfies the transmission target conditions. Specifically, it is determined that the first condition is satisfied when the position of the movement information is included in the guidance area and the movement direction specified from the movement information is the same direction as the traveling direction of the suddenly braked vehicle. Further, if the position of the movement information is included in the guidance area and the movement direction specified from the movement information is the same as or opposite to the traveling direction of the suddenly braked vehicle, it is determined that the second condition is satisfied. If there is a point guidance system 20 that satisfies the transmission target condition, the control unit 120 transmits the instruction information associated with the transmission target condition to the communication unit in the instruction information table 130d for this point guidance system 20. 140.

In this way, the control unit 120 targets the point guidance system 20 located in the guidance area set with the sudden braking point as a reference to transmit the instruction information. Thereby, the control unit 120 can control the point guidance system 20 located in the guidance area to guide the sudden braking point. Furthermore, the control unit 120 targets the point guidance system 20 in which the moving direction along the traveling direction of the suddenly braked vehicle has been specified. More specifically, if the degree of deceleration is less than the deceleration threshold, the control unit 120 targets the point guidance system 20 in which movement in the same direction as the traveling direction of the suddenly braked vehicle is detected. . On the other hand, if the degree of deceleration is equal to or greater than the deceleration threshold, the control unit 120 selects the point guidance system 20 in which movement in the same direction or in the opposite direction as the traveling direction of the suddenly braked vehicle is detected to be transmitted. do. If the degree of deceleration is large, it is likely that the cause of the sudden braking is having a wide-ranging effect, for example, a large accident has caused cars and debris to be thrown into oncoming traffic. Therefore, when the degree of deceleration is large, the location guidance system 20 whose movement is detected not only in the same direction as the suddenly braking vehicle but also in the opposite direction is also targeted for transmission.

Further, the control unit 120 transmits the instruction information registered in the instruction information table 130d to the point guidance system 20, but the instruction information is deleted from the instruction information table 130d after the expiration of the validity period. Thereby, the control unit 120 can control the point guidance system 20 to guide the sudden braking point only within the valid period. Furthermore, when the number of times of sudden braking is multiple, a longer period is set as the effective period than when the number of times of sudden braking is one.

As described above, the point management system 10 according to the present embodiment generates instruction information for causing the point guidance system 20 to execute guidance with different degrees of emphasis depending on the frequency of sudden braking of the vehicle. Then, the point management system 10 transmits the instruction information to the point guidance system 20 that satisfies the transmission target conditions. As a result, the point guidance system 20 that has received the instruction information can provide more emphasized guidance when sudden braking is detected multiple times within the detection area than when sudden braking is detected only once. .

FIG. 6 is a diagram showing the configuration of the point guidance system 20. The point guidance system 20 includes a control section 220 including a CPU, RAM, ROM, etc., a recording medium 230, a communication section 240, a GNSS reception section 250, an acceleration sensor 270, and a guide section 280. The control unit 220 can execute various programs stored in the recording medium 230 or ROM. The control unit 220 of this embodiment can execute a point guidance program 221 as one of the programs. The control unit 220 performs guidance for vehicles that suddenly brake by processing the point guidance program 221 .

The recording medium 230 stores map information 230a. The map information 230a is similar to the map information 130a of the point management system 10 described with reference to FIG. The communication unit 240 is a device for performing wireless communication with an external device, and the control unit 220 can communicate with the location management system 10 via the communication unit 240.

The GNSS receiving unit 250 is a device that receives signals from the Global Navigation Satellite System. The GNSS receiving unit 250 receives radio waves from navigation satellites, and outputs a signal for calculating the position of the point guidance system 20 via an interface (not shown). The control unit 220 acquires this signal and acquires the position of the point guidance system 20. Acceleration sensor 270 detects acceleration of point guidance system 20. Here, the acceleration includes positive acceleration along the traveling direction of the point guidance system 20 and negative acceleration along the direction opposite to the traveling direction. It is assumed that the position and acceleration of the point guidance system 20 are detected periodically.

The guide unit 280 is an output device for providing guidance to the user of the point guidance system 20. The guide section 280 includes a display and a speaker. The point guidance system 20 outputs a control signal to the guidance section 280 to cause the display to display various information and to output various sounds to the speaker.

The point guidance program 221 executed by the control section 220 of the point guidance system 20 includes a movement information transmitter 221a, an acquisition section 221b, and a guidance control section 221c in order to guide the user to sudden braking points.

The movement information transmitting section 221a provides the control section 220 with a function of periodically transmitting movement information including the position and acceleration of the point guidance system 20 and their detection times to the point management system 10 via the communication section 240. This is a program module that allows you to

The acquisition unit 221b is a program module that causes the control unit 220 to implement a function of receiving instruction information from the point management system 10 via the communication unit 240. The instruction information includes the sudden braking point and the type of guidance. That is, the control unit 220 acquires the sudden braking point and the type of guidance using the function of the acquisition unit 221b.

The guide control unit 221c is a program module that causes the control unit 220 to realize a function of causing the guide unit 280 to guide the sudden braking point according to instruction information. The control unit 220 performs the following processing using the function of the guidance control unit 221c. When the instruction information instructs the first guidance, the control unit 220 controls the guidance unit 280 to execute the first guidance described with reference to FIG. 5A. Further, when the instruction information instructs the second guidance, the control unit 220 controls the guidance unit 280 to execute the second guidance described with reference to FIG. 5B. Note that the icons related to the first guidance and the second guidance are displayed in a superimposed manner on the map displayed according to the map information 230a. In this way, the control unit 220 controls to provide guidance according to the instruction information. Thereby, when the control unit 220 is located within the guidance area and there is a sudden braking point on the travel route of the point guidance system 20, the control unit 220 can perform control to provide guidance to the sudden braking point. More specifically, when sudden braking is detected within the detection area and the number of sudden brakings detected within the detection area within a predetermined detection period is multiple times, the control unit 220 determines whether the sudden braking is detected once within the detection area. It is possible to control the system so as to guide the sudden braking point more emphatically.

As described above, by referring to the instruction information, the control unit 220 emphasizes the situation when sudden braking is detected multiple times at a sudden braking point, rather than when sudden braking is detected only once. It can guide you to sudden braking points.

(2) Processing by the system of the first embodiment:
Next, point management processing by the point management system 10 according to the first embodiment will be explained. The point management process includes a point setting process and an instruction information management process.

FIG. 7 is a flowchart showing the point setting process. The control unit 120 of the point management system 10 executes point setting processing every time movement information is acquired. First, when the control unit 120 receives movement information from the point guidance system 20 via the communication unit 140 using the function of the movement information receiving unit 121a, the control unit 120 stores the movement information in the recording medium 130 or the like (step S100). The control unit 120 further records the received movement information in the user table 130c as a movement history in association with the user ID received together with the movement information.

Next, the control unit 120 uses the function of the sudden braking point specifying unit 121b to perform a sudden braking determination based on the movement information acquired in step S100 (step S105). If sudden braking is not detected (N in step S110), the control unit 120 ends the point setting process. When sudden braking is detected (Y in step S110), the control unit 120 specifies the sudden braking point using the function of the sudden braking point specifying unit 121b (step S115).

After the process in step S115, the control unit 120 extracts a registered sudden brake using the function of the registered sudden brake extraction unit 121c (step S120). Specifically, the control unit 120 sets a detection area and a detection period based on the sudden braking point and the sudden braking occurrence time identified in step S115. Then, the control unit 120 extracts, from among the sudden brakes registered in the sudden brake table 130b, sudden brakes that occur within the detection area during the detection period as registered sudden brakes.

If the registered emergency brake is extracted (Y in step S125), the control unit 120 uses the function of the guidance instruction unit 12 1f to generate instruction information instructing to perform the first guidance (step S130). ). The instruction information generated in step S130 includes the sudden braking point detected in step S105 and information instructing to perform the first guidance described with reference to FIG. 5A. The control unit 120 further uses the function of the guidance instruction unit 12 1f to register the instruction information and the time of occurrence of the sudden brake related to the instruction information in the instruction information table 130d in association with each other. Next, the control unit 120 uses the function of the guide instruction unit 12 1f to register the first period as a valid period in the instruction information table 130d in association with the instruction information generated in step S130 (step S135).

On the other hand, if the registered sudden brake is not extracted in step S125 (N in step S125), the control unit 120 issues an instruction to perform the second guidance using the function of the guidance instruction unit 12 1f . Information is generated (step S140). The instruction information generated in step S140 includes the sudden braking point detected in step S105 and information instructing to perform the second guidance described with reference to FIG. 5B. The control unit 120 further uses the function of the guidance instruction unit 12 1f to register the instruction information and the time of occurrence of the sudden brake related to the instruction information in the instruction information table 130d in association with each other. Next, the control unit 120 uses the function of the guide instruction unit 12 1f to register the second period as a valid period in the instruction information table 130d in association with the instruction information generated in step S140 (step S145). After that, the control unit 120 advances the process to step S150.

After the process in step S135, the control unit 120 uses the function of the traveling direction identifying unit 121e to identify the traveling direction based on the movement information of the point guidance system 20 corresponding to the suddenly braked vehicle (step S150). The control unit 120 further refers to the map information 130a and corrects the traveling direction in a direction along the direction in which the road extends. Note that after the process in step S145, the control unit 120 advances the process to step S150.

Next, the control unit 120 evaluates the deceleration of the suddenly braked vehicle using the function of the traveling direction specifying unit 121e. Specifically, the control unit 120 determines whether the deceleration level is a low level or a high level (step S155). If the deceleration level is low (low level in step S155), the control unit 120 sets the first condition as the transmission target condition (step S160). On the other hand, if the deceleration level is high (high level in step S155), the control unit 120 sets the second condition as the transmission target condition (step S165). With this, the point setting process is completed.

Note that, at the time of registering the instruction information, instruction information related to a sudden braking point within a predetermined distance from the sudden braking point related to the instruction information may already be registered in the instruction information table 130d. In this case, both can be regarded as the same sudden braking point. Therefore, in this case, the control unit 120 overwrites the already registered instruction information with the newly generated instruction information. Furthermore, the control unit 120 overwrites the occurrence time, validity period, and destination condition associated with the instruction information with the newly set occurrence time, validity period, and destination condition, respectively. As a result, the valid period is newly counted from the point where the latest sudden braking occurred. In other words, the validity period is extended.

The flowchart shown on the left side of FIG. 8 is a flowchart showing instruction information management processing. The control unit 120 periodically executes the instruction information management process when instruction information is registered in the instruction information table 130d. The instruction information management process is a process executed by the function of the guide instruction section 121f. First, the control unit 120 refers to the instruction information table 130d and determines whether there is instruction information whose validity period has passed (step S200). If there is instruction information whose validity period has passed (Y in step S200), the control unit 120 deletes the instruction information whose validity period has passed and the information associated therewith from the instruction information table 130d. (Step S205).

Next, the control unit 120 determines whether there is a point guidance system 20 that satisfies the transmission target conditions registered in the instruction information table 130d (step S210). Note that in step S200, if there is no instruction information whose validity period has passed (N in step S200), the control unit 120 advances the process to step S210 without performing the process in step S205.

If there is a spot guidance system 20 that satisfies the transmission target conditions (Y in step S210), the control unit 120 determines the spot guidance system 20 that satisfies the transmission target conditions as the transmission target. Then, the control unit 120 transmits the instruction information registered in the instruction information table 130d in association with the transmission target condition to the point guidance system 20 determined as the transmission target via the communication unit 140 (step S215). . With this, the instruction information management process is completed. On the other hand, if there is no spot guidance system 20 that satisfies the transmission target conditions (N in step S210), the control unit 120 completes the instruction information management process without performing the process in step S215.

As described above, through the instruction information deletion process, the point management system 10 deletes the instruction information whose validity period has passed, and at the same time, uses the instruction information registered in the instruction information table 130d as a point guide that satisfies the transmission target conditions. Send to system 20. Therefore, the point management system 10 can transmit instruction information to the point guidance system 20 that exists within the guidance area within the valid period and satisfies the traveling direction condition.

As described above, the control unit 120 can periodically monitor whether the valid period has elapsed and delete instruction information whose valid period has passed.

The flowchart on the right side of FIG. 8 is a flowchart showing point guidance processing by the point guidance system 20. The control unit 220 uses the function of the acquisition unit 221b to acquire instruction information from the point management system 10 via the communication unit 240 (step S300). Next, the control unit 220 uses the function of the guidance control unit 221c to provide guidance to the sudden braking point according to the instruction information received in step S300 (step S305). Note that in step S305, when the instruction information is instruction information related to the second guidance, the control unit 220 provides more emphasized guidance than when the instruction information is instruction information related to the first guidance.

Note that the point guidance system 20 receives the instruction information when the point guidance system 20 is present in the guidance area. The guidance area is located relatively close to the sudden braking point, and therefore, the point guidance system 20 can provide guidance at an appropriate timing close to the sudden braking point. Further, instruction information whose validity period has passed is not transmitted to the point guidance system 20. Therefore, the sudden braking point will not be guided after the effective period has elapsed since the sudden braking occurred, and unnecessary guidance can be prevented.

(3) System configuration of second embodiment:
Next, regarding the system according to the second embodiment, the points that are different from the system according to the first embodiment will be mainly described. In the system according to the second embodiment, the point guidance system 20 performs some of the processing that was performed by the point management system 10 in the first embodiment.

FIG. 9 is a diagram showing the configuration of a point management system 10 according to the second embodiment. The control unit 120 of the point management system 10 according to the second embodiment can execute the point management program 122. The control unit 120 detects sudden braking through the processing of the point management program 122 and notifies the point guidance system 20 of the sudden braking.

The recording medium 130 according to this embodiment stores map information 130a and a user table 130c. The map information 130a and the user table 130c are the same as the map information 130a and the user table 130c according to the first embodiment, respectively. Note that the sudden brake table 130b and the instruction information table 130d are not stored in the recording medium 130 according to this embodiment.

The point management program 122 executed by the control section 120 according to the present embodiment includes a movement information receiving section 122a, a sudden braking point specifying section 122b, a deceleration evaluation section 122c, and a traveling direction specifying section in order to manage sudden braking points. section 122d, and a sudden brake information transmitting section 122e. The movement information receiving section 122a, the sudden braking point specifying section 122b, the deceleration evaluating section 122c, and the traveling direction specifying section 122d are the moving information receiving section 121a, the sudden braking point specifying section 121b, and the deceleration evaluating section 121d, respectively, according to the first embodiment. and the traveling direction specifying unit 121e. However, the sudden braking point specifying unit 122b of this embodiment does not register the sudden braking point in the sudden braking table.

The sudden braking information transmitting section 122e is a program module that causes the control section 120 to realize a function of transmitting sudden braking information to the point guidance system 20 via the communication section 140. The control unit 120 performs the following processing using the function of the sudden brake information transmitting unit 122e. The control unit 120 generates sudden braking information. Specifically, the control section 120 acquires the sudden braking point and occurrence time specified by the function of the sudden braking point specifying section 122b. The control unit 120 further acquires the deceleration level specified by the function of the deceleration evaluation unit 122c and the traveling direction of the suddenly braked vehicle specified by the function of the traveling direction specifying unit 122d. Then, the control unit 120 generates information including the sudden braking point, the time of occurrence, the traveling direction of the sudden braking vehicle, and the deceleration level as sudden braking information. The control unit 120 controls the generated sudden braking information to be transmitted to the point guidance system 20 to be managed via the communication unit 140.

In this way, the point management system 10 according to the present embodiment transmits information regarding sudden braking to the point guidance system 20 without generating instruction information or monitoring the validity period.

FIG. 10 is a diagram showing the configuration of a point guidance system 20 according to the second embodiment. The control unit 220 of the point guidance system 20 according to the second embodiment can execute the point guidance program 222. The control unit 220 guides the driver to sudden braking points through the processing of the point guidance program 222 .

The recording medium 230 of the point guidance system 20 according to this embodiment stores a sudden brake table 230b and an instruction information table 230c in addition to the map information 230a. The map information 230a is similar to the map information 230a according to the first embodiment. The sudden brake table 230b is similar to the sudden brake table 130b included in the point management system 10 according to the first embodiment.

FIG. 11 is a diagram showing an example of the data structure of the instruction information table 230c. The instruction information table 230c stores instruction information, a sudden brake occurrence time, a valid period, and guidance conditions in association with each other. Here, the guidance conditions are the same as the transmission target conditions described in the first embodiment. In the second embodiment, first conditions and second conditions similar to the transmission target conditions are referred to as conditions for determining that the point guidance system 20 provides guidance.

Returning to FIG. 10, the point guidance program 222 executed by the control section 220 according to the present embodiment includes a movement information transmitting section 222a, an acquisition section 222b, and a registered sudden braking extraction section 222c in order to guide sudden braking points. and a guidance control section 222d. The movement information transmitter 222a is similar to the movement information transmitter 221a according to the first embodiment.

The acquisition unit 222b is a program module that causes the control unit 220 to implement a function of acquiring sudden braking information from the point management system 10 via the communication unit 240. The sudden braking information includes the sudden braking point. That is, the control unit 220 acquires the sudden braking point using the function of the acquisition unit 222b. The control unit 220 further uses the function of the acquisition unit 222b to register the sudden braking point and occurrence time included in the sudden braking information in the sudden braking table 230b. In this way, in the second embodiment, the history of sudden braking is managed in the point guidance system 20.

The function of the registered sudden brake extraction section 222c is similar to the function of the registered sudden brake extraction section 121c of the point management system 10 according to the first embodiment. However, in the function of the registered sudden brake extraction unit 222c, registered sudden brakes are extracted by referring to the sudden brake table 230b provided in the point guidance system 20 instead of the sudden brake table 130b.

The guide control unit 222d is a program module that causes the control unit 220 to implement a function of causing the guide unit 280 to guide the driver to sudden braking points. The control unit 220 performs the following processing using the function of the guidance control unit 222d. The control unit 220 generates instruction information, and registers the instruction information, generation time, validity period, and guidance condition in the instruction information table 230c. This process is similar to the generation of instruction information and the registration of the validity period and transmission target conditions by the control unit 120 according to the first embodiment. As described above, the guidance conditions are the same as the transmission target conditions according to the first embodiment.

Similarly to the control unit 120 according to the first embodiment, the control unit 220 further monitors the validity period in the instruction information table 230c, and issues instruction information whose validity period has passed and information associated therewith. It is deleted from the information table 230c. If the instruction information is registered in the instruction information table 230c, the control unit 220 also determines whether the guidance conditions are satisfied based on the position of the point guidance system 20. Then, when the guidance condition is satisfied, the control section 220 causes the guidance section 280 to guide the sudden braking point according to the instruction information registered in the instruction information table 230c in association with the guidance condition.

As described above, in the second embodiment, the point guidance system 20 generates instruction information related to guidance with different degrees of emphasis. Then, the point guidance system 20 determines whether or not sudden braking has been detected multiple times at the sudden braking point according to the instruction information, and if it has been detected multiple times, it is determined that sudden braking has been detected only once. It is possible to notify the sudden braking point more emphatically than usual.

In this manner, the control unit 220 performs control to provide guidance when the vehicle is located in a guidance area set with the sudden braking point as a reference. Further, the control unit 120 performs control to provide guidance when a moving direction along the traveling direction of the suddenly braked vehicle is specified. More specifically, when the degree of deceleration is less than a deceleration threshold, the control unit 220 performs control to provide guidance when movement in the same direction as the traveling direction of the suddenly braked vehicle is detected. . On the other hand, when the degree of deceleration is equal to or higher than the deceleration threshold, the control unit 220 performs control to provide guidance when movement in the same direction or in the opposite direction to the traveling direction of the suddenly braked vehicle is detected. do.

Further, the control unit 220 deletes the instruction information registered in the instruction information table 230c from the instruction information table 130d when the validity period has elapsed. Thereby, the control unit 220 can perform control to provide guidance on sudden braking points only within the valid period. Furthermore, when the number of times of sudden braking is multiple, a longer period is set as the effective period than when the number of times of sudden braking is one.

(4) Processing by the system of the second embodiment:
Next, point management processing by the point management system 10 according to the second embodiment will be explained. FIG. 12 is a flowchart showing the point management process. The control unit 120 of the point management system 10 executes point management processing every time movement information is received.

First, when the control unit 120 receives movement information from the point guidance system 20 via the communication unit 140 using the function of the movement information receiving unit 122a, the control unit 120 stores the movement information in the recording medium 130 or the like (step S400). Next, the control unit 120 performs sudden braking determination using the function of the sudden braking point specifying unit 122b (step S405). This process is similar to the process of step S105 described with reference to FIG.

If sudden braking is not detected (N in step S410), the control unit 120 ends the point management process. When sudden braking is detected (Y in step S410), the control unit 120 uses the function of the traveling direction identifying unit 122d to identify the traveling direction of the suddenly braked vehicle (step S415). This process is similar to the process in step S150. Next, the control unit 120 specifies the deceleration level using the function of the deceleration evaluation unit 122c (step S420). This process is similar to the process in step S155.

Next, the control unit 120 uses the function of the sudden braking information transmitting unit 122e to generate sudden braking information including the sudden braking point, the time when the sudden braking occurs, the deceleration level, and the traveling direction of the suddenly braking vehicle (step S425). Next, the control unit 120 uses the function of the sudden braking information transmitting unit 122e to transmit the sudden braking information to the point guidance system 20 via the communication unit 140 (step S430). Note that the sudden braking information is transmitted to all the point guidance systems 20 managed by the point management system 10. With this, the point management process is completed.

Next, point guidance processing by the point guidance system 20 according to the second embodiment will be explained. The point guidance process includes an instruction information generation process and an instruction information management process. FIG. 13 is a flowchart showing instruction information generation processing. The control unit 220 of the point guidance system 20 executes instruction information generation processing every time it acquires sudden braking information. First, when the control unit 220 acquires sudden braking information using the function of the acquiring unit 222b, it stores the sudden braking information in the recording medium 230 or the like (step S500). Next, the control unit 220 uses the function of the registered sudden brake extraction unit 222c to extract the registered sudden brake corresponding to the sudden braking point indicated by the sudden brake information from the sudden brake table 230b (step S505).

The subsequent processes of step S510, step S515, step S520, step S525, and step S530 are performed by the point management system 10, respectively, as described with reference to FIG. The process is similar to that of . However, the processing from step S510 to step S530 is executed by the control unit 220 using the function of the guidance control unit 222d, and through these processes, the instruction information and the validity period are added to the instruction information table 230c of the point guidance system 20. be registered.

After the process in step S520, the control unit 220 advances the process to step S535. After the process in step S530, the control unit 220 also advances the process to step S535. The control unit 220 evaluates the deceleration of the suddenly braked vehicle using the function of the deceleration evaluation unit 122c (step S535). Note that the processing in step S535, step S540, and step S545 is similar to the processing in step S155, step S160, and step S165 by the point management system 10 described with reference to FIG. This completes the instruction information generation process. In this manner, the point guidance system 20 generates instruction information in the instruction information generation process, and further registers the instruction information, the effective period of occurrence time, and the guidance condition in the instruction information table 230c.

FIG. 14 is a flowchart showing instruction information management processing. The control unit 220 of the point guidance system 20 periodically executes the instruction information management process when instruction information is registered in the instruction information table 230c. The instruction information management process is a process executed by the function of the guide control unit 222d. Note that the instruction information management process shown in FIG. 14 corresponds to the instruction information management process described with reference to FIG. 8 in the first embodiment and the point guidance process described with reference to FIG. 9.

First, the control unit 220 refers to the instruction information table 230c and determines whether there is instruction information whose validity period has passed (step S600). If there is instruction information whose validity period has passed (Y in step S600), the control unit 120 deletes the instruction information whose validity period has passed and the information associated therewith from the instruction information table 130d. (Step S605).

Next, the control unit 220 determines whether the point guidance system 20 satisfies the guidance conditions registered in the instruction information table 230c (step S610). Note that in step S600, if there is no instruction information whose validity period has passed (N in step S600), the control unit 120 advances the process to step S610 without performing the process in step S605.

If the point guidance system 20 satisfies the guidance conditions (Y in step S610), the control section 220 causes the guidance section 280 to guide you according to the instruction information registered in the instruction information table 230c in association with the guidance conditions. control (step S615). With this, the instruction information management process is completed. On the other hand, if the guidance condition is not satisfied (N in step S610), the control unit 220 completes the instruction information management process without performing the process in step S615.

(5) Other embodiments:
The above embodiment is an example for implementing the present invention, and various other embodiments can be adopted. For example, the point management system 10 may be a system realized by a plurality of devices (for example, a client and a server, a control unit in a navigation device, a control unit in a user I/F unit, etc.). At least some of the movement information receiving section 121a, sudden brake point specifying section 121b, registered sudden brake extracting section 121c, deceleration evaluation section 121d, traveling direction specifying section 121e, and guidance instruction section 121f included in the point management system 10 are multiple devices. It may exist separately. Of course, some of the configurations of the embodiments described above may be omitted, and the order of processing may be varied or omitted.

Furthermore, in this embodiment, the system that transmits movement information used for sudden braking determination to the point management system 10 and the system that provides guidance to sudden braking points are integrated, but these are separate systems. It may be realized by For example, the point management system 10 periodically receives vehicle movement information from a navigation system installed in the vehicle, identifies a sudden braking point from this movement information, and sends instruction information related to the sudden braking point to the point guidance system 20. You may also send it to

In this embodiment, the point guidance system 20 is a portable information processing device, but it may also be a system mounted on a vehicle as part of a navigation system mounted on the vehicle, for example. In this case, the navigation system or hardware installed in the vehicle can be used as the GNSS receiving section, gyro sensor, acceleration sensor, display as a guide section, and speaker.

In this embodiment, the detection period is a period from the last sudden braking detection point to a predetermined period past, but the detection period may be any preset period and is limited to the embodiment. It is not something that will be done. As another example, a detection period in units of time is predetermined, such as from 10:00 to 10:01, and the control unit 120 can detect multiple sudden brakes using this detection period as a unit. It may be determined whether or not it has been detected twice. Similarly, the detection area may be a predetermined area range, and may not be based on the sudden braking point, but may be an area where map information is divided into a grid, for example.

In the embodiment described above, the entity that provides guidance to the sudden braking point may be the point guidance system 20 that is scheduled to pass through the sudden braking point. For example, regardless of the deceleration level, the point guidance system 20 in which the same moving direction as the traveling direction of the suddenly braking vehicle is specified may be specified as the guiding entity for the sudden braking point. As another example, regardless of the deceleration level, the point guidance system 20 in which the direction of travel that is the same as or opposite to the traveling direction of the suddenly braked vehicle is identified may be identified as the guiding entity. Furthermore, regardless of the direction of movement, the point guidance system 20 located within the guidance area may be specified as the guidance entity.

Furthermore, the point guidance system 20 outside the guidance area may be specified as the guidance entity. For example, assume that in the point guidance system 20 in which a planned travel route is set, a sudden braking point is included in the planned travel route. In this case, even if the point guidance system 20 is located outside the guidance area, it may be specified as the guidance entity. This allows the user to grasp the status of the planned travel route in advance. In this way, when specifying the point guidance system 20 that is scheduled to pass through a sudden braking point, the point management system 10 refers to the planned movement route instead of referring to movement information and specifying the direction of movement. You can.

In addition, in the above embodiment, the degree of emphasis and the effective period of the guidance are set to differ depending on whether the number of times of sudden braking is one or multiple times (two or more times). It is not limited to the embodiment. That is, when the number of times of sudden braking is equal to or greater than a predetermined number of times threshold, guidance may be performed more emphasized than when the number of times of sudden braking is less than the number of times threshold.

In the instruction information management process described with reference to FIG. 8, the point management system 10 of the first embodiment periodically determines whether the transmission target condition associated with the instruction information is satisfied. Alternatively, the location management system 10 may determine whether the transmission target conditions are satisfied each time movement information is received. Thereby, the point management system 10 can promptly transmit the instruction information when the transmission target conditions are satisfied. Similarly, in the instruction information management process described with reference to FIG. It may also be done on

In the first embodiment, the point management system 10 manages the validity period of the instruction information, but instead, the point guidance system 20 may manage it. That is, the point management system 10 generates instruction information, and transmits the instruction information, generation time, validity period, and guidance conditions to all point guidance systems 20 to be managed. Then, each point guidance system 20 registers the instruction information, occurrence time, valid period, and guidance conditions in the instruction information table 230c, similar to the process according to the function of the guidance control unit 222d according to the second embodiment, The instruction information management process described with reference to FIG. 14 may be executed. Further, in the above example, the destination of the instruction information etc. may be limited to the point guidance system 20 within a predetermined distance from the sudden braking point. This allows the amount of communication to be reduced. Here, the predetermined distance range is wider than the notification area.

Similarly, the destination of the sudden braking information in the second embodiment may be the point guidance system 20 located within a predetermined distance from the sudden braking point. This allows the amount of communication to be reduced.

Furthermore, the systems, programs, and methods described above may be realized as a single device or may be realized using parts shared by multiple devices, and include various aspects. Further, it can be changed as appropriate, such as partially being software and partially being hardware. Furthermore, the invention can also be used as a recording medium for a program that controls a system. Of course, the recording medium for the program may be a magnetic recording medium or a semiconductor memory, and any recording medium that will be developed in the future can be considered in exactly the same way.

DESCRIPTION OF SYMBOLS 10... Point management system, 20... Point guidance system, 120... Control section, 121a... Movement information receiving section, 121b... Sudden brake point identification section, 121c... Registered sudden brake extraction section, 121d... Deceleration evaluation section, 121e... Progress Direction identification unit, 121f...Guidance instruction unit, 220...Control unit, 221a...Movement information transmission unit, 221b...Acquisition unit, 221c...Guidance control unit, 280...Guidance unit

Claims (12)

an acquisition unit that acquires a sudden braking point where sudden braking by a vehicle is detected;
a guide control unit that causes a guide unit to guide the sudden braking point existing on the planned travel route;
The guidance control section includes:
When the sudden braking is detected within a detection area set with the sudden braking point as a reference, and the number of times the sudden braking is detected within a predetermined detection period within the detection area is equal to or greater than a number threshold; guiding the sudden braking point more emphatically than when the number of times is less than the threshold;
The detection period is a period before the last time the sudden brake was detected,
The guidance control section includes:
guiding the sudden braking point if a predetermined valid period has not elapsed since the last sudden braking was detected;
If the number of sudden brakes detected within the detection area is equal to or greater than the number threshold, the validity period is made longer than when the number is less than the number threshold;
Point guidance system. When the vehicle is located in a guidance area based on the sudden braking point, the guidance control unit causes the sudden braking point to be guided.
The point guidance system according to claim 1 . a sudden braking point identification unit that identifies a sudden braking point where sudden braking by a vehicle is detected;
a guidance instruction unit that instructs a point guidance system that is scheduled to pass through the sudden braking point to guide the sudden braking point ;
The guide instruction section is
When the sudden braking is detected within a detection area set with the sudden braking point as a reference, and the number of times the sudden braking is detected within a predetermined detection period within the detection area is equal to or greater than a number threshold; instructing to guide the sudden braking point more emphatically than when the number of times is less than the threshold ;
The detection period includes the last time the sudden brake was detected,
The guide instruction section is
guiding the sudden braking point if a predetermined valid period has not elapsed since the last sudden braking was detected;
If the number of sudden brakes detected within the detection area within the detection period is equal to or greater than the number threshold, the effective period is made longer than when the number is less than the number threshold;
Point management system. The sudden braking point is guided in the point guidance system located in a guidance area based on the sudden braking point,
The point management system according to claim 3 . further comprising a traveling direction identifying unit that identifies a traveling direction of the vehicle in which the sudden brake is detected,
In the guidance instruction section of the point guidance system where movement in the same direction as the traveling direction of the vehicle is detected, the sudden braking point is guided;
The point management system according to claim 3 or 4 . further comprising a deceleration evaluation unit that evaluates the deceleration of the sudden brake,
If the deceleration is less than a deceleration threshold, the point guidance system where movement in the same direction as the traveling direction of the vehicle is detected guides the sudden braking point;
If the deceleration is greater than or equal to the deceleration threshold, the point guidance system where movement along the same direction as the traveling direction of the vehicle or movement along the opposite direction is detected, the sudden braking point is be guided,
The point management system according to claim 5 . a sudden braking point identification unit that identifies a sudden braking point where sudden braking by a vehicle is detected;
a guidance instruction unit that instructs a point guidance system that is scheduled to pass through the sudden braking point to guide the sudden braking point;
The guide instruction section is
When the sudden braking is detected within a detection area set with the sudden braking point as a reference, and the number of times the sudden braking is detected within a predetermined detection period within the detection area is equal to or greater than a number threshold; instructing to guide the sudden braking point more emphatically than when the number of times is less than the threshold;
The guidance instructing unit of the point guidance system further includes a traveling direction identifying unit that identifies the traveling direction of the vehicle in which the sudden braking is detected, and in which movement in the same direction as the traveling direction of the vehicle is detected, The sudden braking point will be guided,
further comprising a deceleration evaluation unit that evaluates the deceleration of the sudden brake,
If the deceleration is less than a deceleration threshold, the point guidance system where movement in the same direction as the traveling direction of the vehicle is detected guides the sudden braking point;
If the deceleration is greater than or equal to the deceleration threshold, the point guidance system where movement along the same direction as the traveling direction of the vehicle or movement along the opposite direction is detected, the sudden braking point is be guided,
Point management system. The detection period includes the last time the sudden brake was detected.
The point management system according to claim 7 . The guide instruction section is
guiding the sudden braking point if a predetermined valid period has not elapsed since the last sudden braking was detected;
If the number of sudden brakes detected within the detection area within the detection period is equal to or greater than the number threshold, the effective period is made longer than when the number is less than the number threshold;
The point management system according to claim 7 or 8 . The sudden braking point is guided in the point guidance system located in a guidance area based on the sudden braking point,
The point management system according to any one of claims 7 to 9 . computer,
an acquisition unit that acquires a sudden braking point where sudden braking by a vehicle is detected;
a guide control unit that causes a guide unit to guide the sudden braking point existing on the planned travel route;
and make it work,
The guidance control section includes:
When the sudden braking is detected within a detection area set with the sudden braking point as a reference, and the number of times the sudden braking is detected within a predetermined detection period within the detection area is equal to or greater than a number threshold; guiding the sudden braking point more emphatically than when the number of times is less than the threshold;
The detection period is a period before the last time the sudden brake was detected,
The guidance control section includes:
guiding the sudden braking point if a predetermined valid period has not elapsed since the last sudden braking was detected;
If the number of sudden brakes detected within the detection area is equal to or greater than the number threshold, the validity period is made longer than when the number is less than the number threshold;
Point guidance program. computer,
a sudden braking point identification unit that identifies a sudden braking point where sudden braking by a vehicle is detected;
causing the sudden braking point to function as a guidance instruction unit that instructs a planned point guidance system to guide the sudden braking point;
The guide instruction section is
When the sudden braking is detected within a detection area set with the sudden braking point as a reference, and the number of times the sudden braking is detected within a predetermined detection period within the detection area is equal to or greater than a number threshold; instructing to guide the sudden braking point more emphatically than when the number of times is less than the threshold ;
The detection period includes the last time the sudden brake was detected,
The guide instruction section is
guiding the sudden braking point if a predetermined valid period has not elapsed since the last sudden braking was detected;
If the number of sudden brakes detected within the detection area within the detection period is equal to or greater than the number threshold, the effective period is made longer than when the number is less than the number threshold;
Point management program.

Images