JP7172341B2 - Management system and information transmission method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a management system and an information transmission method for providing a user with emergency events while a vehicle is running.

Classification indicating the type of near-miss event for each of the multiple danger occurrence points where near-miss events, which are events that do not lead to serious disasters or accidents but have a high probability of directly leading to such disasters, occur while the vehicle is running. It has been proposed to construct a near-miss database in which information is accumulated (see, for example, Patent Document 1).

JP 2016-71492 A

Near-miss incidents that are likely to be encountered differ depending on the size, weight, center of gravity, and other conditions of the vehicle. However, with the near-miss incident database of Patent Document 1, it was not possible to specify what kind of near-miss event occurred in what state of the vehicle. I had a problem that I couldn't.

Therefore, the present invention has been made in view of these points, and it is an object of the present invention to provide a management system and an information transmission method for enabling the user to grasp near-miss information suitable for the state of the vehicle.

A management system according to a first aspect of the present invention is a management system comprising an information transmission device mounted on a first vehicle and a management device, wherein the information transmission device detects an emergency event during travel. a transmission-side acquisition unit that acquires position information indicating the position of the first vehicle; and emergency event information that indicates the emergency event detected by the detection unit, and when the detection unit detects the emergency event. a transmission unit configured to transmit the position information indicating the position of the first vehicle and the vehicle information for specifying the state of the first vehicle to the management device, wherein the management device transmits the position information together with the emergency event information; a receiving unit that receives information and the vehicle information; a management-side acquisition unit that acquires the state of the first vehicle as first vehicle state information based on the vehicle information; the emergency event information; , and a storage control unit that associates the first vehicle state information with the first vehicle state information and stores the information in a storage unit.

The transmission unit transmits the vehicle information including vehicle identification information for identifying the first vehicle to the management device, and the management-side acquisition unit receives the vehicle information included in the vehicle information received by the reception unit. The dimensions of the first vehicle may be obtained as the first vehicle state information based on the vehicle identification information.

The storage unit associates and stores the vehicle identification information and an encounter frequency indicating the frequency with which the first vehicle encounters an emergency event, and the storage control unit stores the vehicle identification information included in the received vehicle information. The emergency event information received together with the vehicle identification information may be deleted from the storage unit when the encounter frequency associated with the information in the storage unit is higher than a threshold.

The management-side acquisition unit acquires weather information indicating the weather based on the date and time when the detection unit detected the emergency event and the location information received together with the emergency event information indicating the emergency event, and stores the weather information. The control unit may associate and store the emergency event information, the position information, the first vehicle state information, and the weather information.

The management system further includes an information requesting device mounted on a second vehicle, wherein the information requesting device includes a requesting-side acquisition unit that acquires position information indicating the position of the second vehicle; and second vehicle state information specifying the state of the second vehicle to the management device, wherein the management device receives the position information and the second vehicle state information A position within a predetermined distance from a position indicated by a receiving unit that receives, first vehicle state information having the same or similar attribute as the second vehicle state information received by the receiving unit, and the position information received by the receiving unit. and a responding unit configured to transmit the emergency event information associated in the storage unit to the information requesting device.

The request-side acquisition unit acquires the travel route of the second vehicle, the request unit transmits the travel route as the position information to the management device, the reception unit receives the travel route, The response unit stores position information indicating a position on the travel route received by the reception unit and first vehicle state information having an attribute identical or similar to the second vehicle state information received by the reception unit in the storage unit. The associated emergency event information may be transmitted to the second vehicle.

The information requesting device further includes a prediction unit that predicts a travel route of the second vehicle based on the position information received by the reception unit, and the response unit is configured to: The emergency event information associated in the storage unit with the position information indicating the position and the second vehicle state information received by the reception unit may be transmitted to the second vehicle.

The transmission unit transmits the vehicle information including the center-of-gravity position information indicating the center-of-gravity position of the first vehicle together with the emergency event information indicating the rollover emergency event of the first vehicle to the management device. The vehicle information that does not include the center-of-gravity position information may be transmitted to the management device together with the emergency event information indicating the deviation emergency event.

An information transmission method according to a second aspect of the present invention is an information transmission method executed by a computer mounted on a vehicle, comprising the step of detecting an emergency event during travel; transmitting to a management device the position information indicating the position of the vehicle when the emergency event was detected and the vehicle information for identifying the state of the vehicle, together with the emergency event information indicating the detected emergency event; and a step.

ADVANTAGE OF THE INVENTION According to this invention, it is effective in enabling a user to grasp near-miss information suitable for the state of a vehicle.

It is a figure which shows the outline|summary of the management system of this embodiment. It is a figure which shows the structure of a 1st vehicle. It is a figure which shows the structure of a management apparatus. 4 is a diagram for explaining environment information stored in a storage unit; FIG. It is a figure which shows the structure of an information request apparatus. FIG. 10 is a sequence diagram showing emergency event storage processing by the management system; FIG. 10 is a sequence diagram showing emergency event notification processing by the management system;

<First Embodiment>
[Outline of management system]
FIG. 1 is a diagram showing an outline of a management system S of this embodiment. The management system S manages emergency events occurring in the vehicle. An emergency event is a so-called near-miss event, which does not actually cause an accident, but is an event that is on the verge of causing an accident. The management system S includes an information transmission device 100 mounted on a plurality of first vehicles 1a and 1b (also referred to as the first vehicle 1), and a management device 200. FIG.

Information transmitting device 100 is connected to management device 200 via wireless communication network N. FIG. The information transmitting device 100 detects an emergency event while the first vehicle 1 is running. The information transmitting device 100 detects, for example, that the first vehicle 1a or 1b is suddenly braked or steered abruptly as an emergency event. Emergency events may include events that actually cause accidents.

When detecting an emergency event, the information transmitting device 100 transmits emergency event information indicating the detected emergency event, position information indicating the position of the first vehicle 1a or 1b when the emergency event was detected, and the first vehicle 1a. Alternatively, vehicle information for specifying the state of 1b is transmitted to the management device 200 ((1) in FIG. 1).

The management device 200 is connected to the information transmission device 100 via the wireless communication network N. FIG. The management device 200 receives emergency event information, location information and vehicle information from the information transmission device 100 . The management device 200 associates vehicle information with first vehicle state information indicating the state of the first vehicle 1, such as the overall length, and stores the information in the storage unit. The management device 200 acquires the first vehicle state information stored in association with the same vehicle information as the received vehicle information from the storage unit. The management device 200 associates and stores the received emergency event information, the location information, and the acquired first vehicle state information ((2) in FIG. 1).

With such a configuration, the management device 200 can associate and store the position where the information transmitting device 100 detected the emergency event and the state of the first vehicle 1a or 1b when the emergency event was detected. Therefore, the administrator of the management device 200 can grasp emergency event information corresponding to a specific position and a specific vehicle state.

[Configuration of first vehicle]
FIG. 2 is a diagram showing the configuration of the first vehicle 1. As shown in FIG. The first vehicle 1 includes an information transmission device 100 , a millimeter wave radar 101 , a lateral acceleration sensor 102 and a camera 103 . The information transmitting device 100 includes a GPS sensor 11 , a communication section 12 , a storage section 13 and a control section 14 . The millimeter wave radar 101 is a sensor that measures the distance between the first vehicle 1 and other vehicles or obstacles. The lateral acceleration sensor 102 is a sensor that measures acceleration in the width direction of the first vehicle 1 . The camera 103 is a camera that captures the road surface on which the first vehicle 1 travels.

The GPS sensor 11 acquires the position of the first vehicle 1 by receiving signals from GPS (Global Positioning System) satellites. The communication unit 12 is a communication module for communication via the wireless communication network N. FIG. The storage unit 13 is composed of, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory). The storage unit 13 stores various programs and various data for causing the control unit 14 to function.

The control unit 14 is configured by, for example, a CPU (Central Processing Unit). The control unit 14 functions as a detection unit 141 , an acquisition unit 142 and a communication control unit 143 by executing various programs stored in the storage unit 13 . The detection unit 141 detects an emergency event during travel.

For example, the detection unit 141 may detect an emergency event of collision based on the distance between the first vehicle 1 and other vehicles or obstacles measured by the millimeter wave radar 101 . The detection unit 141 detects an emergency event of collision when the distance to another vehicle or the like measured by the millimeter wave radar 101 is less than a threshold. The threshold is, for example, 1 meter. On the other hand, the detection unit 141 does not detect an emergency event of collision when the distance to another vehicle or the like measured by the millimeter wave radar 101 is equal to or greater than the threshold.

The detection unit 141 acquires the acceleration in the width direction of the first vehicle 1 measured by the lateral acceleration sensor 102 . The detection unit 141 detects the acquired width direction acceleration, the longitudinal acceleration of the first vehicle 1 measured by a longitudinal acceleration sensor (not shown), the vehicle speed measured by a vehicle speed sensor (not shown), and the steering wheel operation angle sensor. The centrifugal acceleration of the first vehicle 1 is obtained based on the steering wheel operation angle measured by a vehicle electronic compass (not shown) and the traveling direction of the first vehicle 1 measured by an in-vehicle electronic compass (not shown). The detection unit 141 calculates the roll angle of the first vehicle 1 by correcting the acceleration in the width direction using this centrifugal acceleration.

The detection unit 141 may detect a rollover emergency event based on the calculated roll angle. The detector 141 identifies the roll rate based on the time change of the roll angle. Also, the position of the center of gravity of the first vehicle 1 is specified using a plurality of weight sensors (not shown) installed on the loading platform. The detection unit 141 detects a rollover emergency event based on, for example, the measured roll angle, roll rate, and center-of-gravity position.

The detection unit 141 may detect a lane departure emergency event based on the image of the road surface captured by the camera 103 . The detection unit 141 detects that the first vehicle 1 has left the lane as a lane departure emergency event. The detection unit 141 analyzes the captured image and detects a lane departure emergency event when it recognizes that the wheels of the first vehicle 1 have crossed the center line of the road. Further, the detection unit 141 may detect that the brake pedal is stepped on beyond a predetermined depression angle as an emergency event of sudden braking, and detect that the steering wheel is rotated beyond a predetermined angular velocity. It may be detected as an event.

Note that the detection unit 141 may be connected to an alarm device (not shown) for warning the driver that an emergency event such as a collision, rollover, or lane departure has occurred. The detector 141 may detect an emergency event by detecting that the alarm device has generated an output signal indicating that the emergency event has occurred. Also, the detection unit 141 may be connected to a safety device (not shown) such as an automatic brake that operates in an emergency such as a collision. The detector 141 may detect an emergency event by detecting an actuation signal that activates this safety device. The detection unit 141 outputs the detected emergency event to the acquisition unit 142 and the communication control unit 143 .

The acquisition unit 142 acquires position information indicating the position of the first vehicle 1 . In the example of FIG. 2 , the acquisition unit 142 acquires position information of the first vehicle 1 using the GPS sensor 11 . Location information includes, for example, latitude and longitude. Acquisition unit 142 outputs position information indicating the position of first vehicle 1 when detection unit 141 detects an emergency event to communication control unit 143 .

The communication control unit 143 communicates with the management device 200 via the communication unit 12 . The communication control unit 143 provides emergency event information indicating the emergency event detected by the detection unit 141, position information indicating the position of the first vehicle 1 when the detection unit 141 detected the emergency event, and Vehicle information for identifying the state is transmitted to the management device 200 . The emergency event information is, for example, information indicating the type of emergency event such as a collision.

Vehicle information includes, for example, unique vehicle identification information for identifying the first vehicle 1 . The vehicle identification information is, for example, an automobile registration number. The vehicle information may include information specifying both the type of vehicle and the type of cargo bed of the first vehicle 1 . The vehicle information includes dimension information indicating dimensions such as the total length, width, or height of the first vehicle 1, information indicating the loaded weight or gross vehicle weight of the first vehicle 1 measured by a weight sensor (not shown), or the first It may also include center-of-gravity position information indicating the center-of-gravity position of the vehicle 1 . The vehicle information may include measurement results of the millimeter wave radar 101 or the lateral acceleration sensor 102, images of the road surface captured by the camera 103, and the like. The communication control unit 143 transmits the detection date and time when the detection unit 141 detected an emergency event to the management device 200 together with emergency event information and the like.

In order to reduce the amount of data transmission, the communication control unit 143 transmits information having a higher relevance to the emergency event detected by the detection unit 141 to the management device 200, and increases the relevance to the emergency event detected by the detection unit 141. Low information need not be sent to the management device 200 . For example, the communication control unit 143 may transmit vehicle information including center-of-gravity position information indicating the center-of-gravity position of the first vehicle 1, which is relatively highly relevant to rollover, together with emergency event information indicating an emergency event of rollover of the first vehicle 1. You may transmit to the management apparatus 200. FIG. At this time, the vehicle information does not need to include the image of the road surface captured by the camera 103, which has relatively little relevance to the rollover.

On the other hand, the center of gravity position information has a relatively low relevance to the lane departure emergency event. For this reason, the communication control unit 143 may transmit vehicle information that does not include the center-of-gravity position information to the management device 200 together with emergency event information indicating the emergency event of lane departure of the first vehicle 1 . This vehicle information may include a captured image of the road surface captured by the camera 103, which has a relatively high relevance to the lane departure.

[Management device configuration]
FIG. 3 is a diagram showing the configuration of the management device 200. As shown in FIG. The management device 200 includes a communication section 21 , a storage section 22 and a control section 23 . The communication unit 21 is a communication interface for communicating with the information transmitting device 100 and an information requesting device mounted on the second vehicle (not shown). The storage unit 22 is configured by, for example, ROM and RAM. The storage unit 22 stores various programs and various data for causing the control unit 23 to function.

The control unit 23 is configured by, for example, a CPU. The control unit 23 functions as a communication control unit 201 , an acquisition unit 202 , a storage control unit 203 , a reception unit 204 , a prediction unit 205 and a response unit 206 by executing various programs stored in the storage unit 22 .

The communication control section 201 communicates with the information transmitting device 100 and the information requesting device via the communication section 21 . Communication control unit 201 receives emergency event information, location information, and vehicle information from information transmitting device 100 . Communication control unit 201 outputs the received emergency event information, position information, and vehicle information to acquisition unit 202 and storage control unit 203 .

The acquisition unit 202 acquires the state of the first vehicle 1 as first vehicle state information based on the vehicle information received by the communication control unit 201 . The storage unit 22 stores unique vehicle identification information for identifying the first vehicle 1 and first vehicle state information indicating the state of the first vehicle 1 in association with each other. The first vehicle state information includes, for example, dimension information indicating dimensions such as the total length, width, or height of the first vehicle 1, information indicating the loaded weight, gross vehicle weight, or center-of-gravity position of the first vehicle 1, and total length of the first vehicle. , full width, full height, half-loaded weight, which indicates the vehicle weight when half of the maximum load is loaded, or half-load, which indicates the position of the center of gravity when half of the maximum load is loaded evenly on the platform. It is the center of gravity.

The acquisition unit 202 acquires first vehicle state information such as dimension information of the first vehicle 1 based on vehicle identification information included in the vehicle information received by the communication control unit 201 . For example, the acquisition unit 202 acquires the first vehicle state information associated in the storage unit 22 with the same vehicle identification information as the vehicle identification information included in the vehicle information. Moreover, when the vehicle information received by the receiving unit includes dimension information, the acquiring unit 202 may acquire the dimension information included in the vehicle information as the first vehicle state information.

When the vehicle information received by the communication control unit 201 includes the vehicle type information indicating the vehicle type and the loading space information indicating the loading space type, the acquiring unit 202 acquires the first vehicle information based on the vehicle type information and the loading space information. You may The storage unit 22 stores vehicle type information, loading platform information, and first vehicle state information in association with each other. The acquisition unit 202 acquires vehicle type information and cargo bed information included in the vehicle information received by the communication control unit 201 . The acquisition unit 202 may acquire the first vehicle state information associated with the acquired vehicle type information and the carrier information in the storage unit 22 .

The occurrence of emergency events is susceptible to weather. For example, emergency events such as collisions, rollovers, and lane departures are all likely to occur on snowy days. The acquisition unit 202 acquires weather information indicating the weather based on the date and time when the detection unit 141 detected the emergency event and the location information received together with the emergency event information indicating the emergency event. Specifically, the acquisition unit 202 is connected to an external device (not shown) via the communication unit 21, and determines the position indicated by the position information received by the communication control unit 201 at the date and time when the detection unit 141 detected the emergency event. Obtain weather information indicating the weather from an external device. The external device is, for example, a server installed in a public institution that provides weather information. With such a configuration, the administrator of the management device 200 can grasp the emergency event encountered by the first vehicle 1 for each weather.

[Update environment information]
The storage unit 22 associates and stores position information, emergency event information, first vehicle state information, road information indicating roads on which the vehicle can travel, and environment information. The environmental information is information indicating the circumstances around the vehicle. FIG. 4 is a diagram for explaining environment information stored in the storage unit 22. As shown in FIG. The environment information includes dynamic information A, quasi-dynamic information B, quasi-static information C, and static information D in ascending order of update cycle.

The dynamic information A includes surrounding vehicle information indicating the state of surrounding vehicles at a specified position, pedestrian information indicating the state of surrounding pedestrians, signal information indicating the state of a signal, or the like. For example, the acquisition unit 202 acquires a photographed image of a security camera or the like installed on the road via the communication unit 21, and analyzes the acquired photographed image to obtain peripheral vehicle information, pedestrian information, and signal information. get. The acquisition unit 202 causes the storage unit 22 to store the acquired information in association with the position information. The update period of dynamic information A is the shortest, for example, 1 second.

Semi-dynamic information B includes accident information, traffic congestion information, or narrow-area weather information. The narrow-area weather information is, for example, weather information indicated for each one-kilometer square area. For example, the acquisition unit 202 acquires accident information, traffic congestion information, or narrow-area weather information together with corresponding position information from servers installed in various information providing organizations via the communication unit 21 . The acquisition unit 202 causes the storage unit 22 to store the acquired accident information, traffic congestion information, or narrow-area weather information in association with the location information. The update period of the semi-dynamic information B is, for example, one minute.

Semi-static information C includes traffic regulation information, road construction information, or wide-area weather information. Wide-area weather information is, for example, weather information indicated for each 10-kilometer square area. For example, the acquisition unit 202 acquires traffic control information, road construction information, or wide-area weather information together with corresponding position information from servers installed in various information providing organizations via the communication unit 21 . The acquisition unit 202 causes the storage unit 22 to store the acquired traffic regulation information, road construction information, or wide-area weather information in association with the location information. The update period of the semi-static information C is, for example, one hour.

The static information D includes road surface information, lane information, or three-dimensional structure information. The road surface information indicates the state of the road surface, such as, for example, a Bergian road with a lot of unevenness. The lane information indicates the number and width of lanes on the road. The three-dimensional structure information indicates structures such as bridges and tunnels. For example, the acquisition unit 202 acquires road surface information, lane information, or three-dimensional structure information together with corresponding position information from servers installed in various information providing organizations via the communication unit 21 . The acquisition unit 202 causes the storage unit 22 to store the acquired road surface information, lane information, or three-dimensional structure information in association with the position information. The update cycle of static information D is, for example, one month.

The storage control unit 203 associates the emergency event information received by the communication control unit 201, the position information received, and the first vehicle state information acquired by the acquisition unit 202, and causes the storage unit 22 to store them. The storage control unit 203 may store the weather information acquired by the acquisition unit 202 in the storage unit 22 in association with the emergency event information, the position information, and the first vehicle state information.

The storage unit 22 stores vehicle identification information and an encounter frequency indicating the frequency with which the first vehicle 1 encounters an emergency event in association with each other. Possible causes of encountering an emergency event include artificial factors such as the driver's driving posture and environmental factors such as poor road visibility. For example, when a plurality of first vehicles 1 encounter an emergency event at the same location, it is presumed that environmental factors are a major factor. On the other hand, when one first vehicle 1 encounters an emergency event with a particularly high encounter frequency, it is presumed that this first vehicle 1 encounters an emergency event mainly due to human factors. . Therefore, when one first vehicle 1 encounters an emergency event with a particularly high frequency, the emergency event encountered by the first vehicle 1 is used as reference information for suppressing accidents involving other vehicles. Effectiveness is small.

Therefore, the storage control unit 203 acquires from the storage unit 22 the encounter frequency associated with the vehicle identification information included in the received vehicle information. If the frequency of encounters associated with specific vehicle information is abnormally high compared to the frequency of encounters associated with other vehicle information, there is a high probability that the driver of the vehicle corresponding to the specific vehicle information has a problem with the driving method. high. Therefore, the storage control unit 203 may cause the communication control unit 201 to delete the emergency event information received together with the vehicle identification information from the storage unit 22 when the acquired encounter frequency is higher than the threshold. A threshold is a value that indicates that the same driver encounters an emergency event significantly more frequently.

On the other hand, memory control unit 203 does not have to delete from memory unit 22 the emergency event received by communication control unit 201 together with the vehicle identification information when the acquired encounter frequency is equal to or less than the threshold. With such a configuration, the memory control unit 203 can prevent an emergency event caused by human factors from being confused with an emergency event caused by environmental factors. Therefore, the memory control unit 203 can cause the memory unit 22 to store emergency events caused by environmental factors that are particularly useful for suppressing accidents involving other vehicles.

The reception unit 204 communicates via the communication unit 21 with an information request device mounted on the second vehicle (not shown). The receiving unit 204 receives position information indicating the position of the second vehicle and second vehicle state information specifying the state of the second vehicle from the information requesting device. The second vehicle status information is the same information as the first vehicle status information, such as the total length, width, and height of the second vehicle, and the half-loaded weight indicating the vehicle weight when half of the maximum load capacity is loaded. indicates The reception unit 204 also receives information indicating the traveling direction of the second vehicle. The reception unit 204 outputs the received position information, the second vehicle state information, and the information indicating the traveling direction of the second vehicle to the prediction unit 205 and the response unit 206 .

The prediction unit 205 predicts the travel route of the second vehicle based on the position information received by the reception unit 204 . More specifically, the prediction unit 205 identifies the road corresponding to the position indicated by the position information received by the reception unit 204 . The prediction unit 205 predicts the travel route of the second vehicle using the specified road and the information indicating the travel direction of the second vehicle received by the reception unit 204 . If the specified road has an intersection, the prediction unit 205 predicts all roads extending from this intersection as the travel route of the second vehicle.

The response unit 206 alerts the driver of the second vehicle by transmitting the emergency event information stored in the storage unit 22 to the information request device 300 mounted on the second vehicle. The response unit 206 receives position information indicating a position within a predetermined distance from the position indicated by the position information received by the reception unit 204, and the first vehicle state having the same or similar attribute as the second vehicle state information received by the reception unit 204. The emergency event information associated with the information in the storage unit 22 is obtained. The predetermined distance is a distance that the second vehicle is expected to reach within several minutes to several tens of minutes, and is several tens of kilometers, for example. The range of the first vehicle state information having the same or similar attribute as that of the second vehicle state information is determined, for example, from the viewpoint of whether the second vehicle is significantly likely to encounter the emergency event encountered by the first vehicle 1 again. Determined by those skilled in the art according to the type of emergency event. As an example, for example, the first vehicle state information including 70% to 130% of the total length, width, and height of the second vehicle included in the second vehicle state information, respectively, includes the second vehicle state It has attributes similar to information.

In the example of the present embodiment, the response unit 206 identifies a position within a predetermined distance from the position indicated by the position information received by the reception unit 204 in the position on the travel route of the second vehicle predicted by the prediction unit 205 . The response unit 206 sends emergency event information associated in the storage unit 22 with the first vehicle state information having the same or similar attributes as the second vehicle state information received by the reception unit 204 and the position information indicating the identified position. get.

The response unit 206 transmits the acquired emergency event information to the information request device 300 . The response unit 206 transmits the location information associated with the acquired emergency event information in the storage unit 22 to the information requesting device 300 together with this emergency event information. With such a configuration, the response unit 206 can transmit to the second vehicle an emergency event encountered by the first vehicle 1 on the travel route of the second vehicle. At this time, the response unit 206 transmits to the information requesting device 300 the emergency event encountered by the first vehicle 1 having the first vehicle state information of the same or similar attribute as the second vehicle state information of the second vehicle. The information requesting device 300 can selectively receive emergency events that are relatively likely to be encountered in the second vehicle condition.

[Configuration of information request device]
The management system S includes an information requesting device 300 mounted on the second vehicle in addition to the information transmitting device 100 and the management device 200 . FIG. 5 is a diagram showing the configuration of the information requesting device 300. As shown in FIG. The information requesting device 300 includes a GPS sensor 31 , a communication section 32 , a speaker 33 , a storage section 34 and a control section 35 . The GPS sensor 31 and communication unit 32 have the same functions as the GPS sensor 11 and communication unit 12 in FIG. 2, respectively. The speaker 33 outputs sound by converting electrical signals into vibrations. The storage unit 34 stores various programs and various data for causing the control unit 35 to function.

The control unit 35 is configured by, for example, a CPU. The control unit 35 functions as an acquisition unit 351 , a request unit 352 and a notification unit 353 by executing various programs stored in the storage unit 34 . Acquisition unit 351 acquires position information indicating the position of the second vehicle. In the example of FIG. 5 , the acquisition unit 351 acquires position information of the second vehicle using the GPS sensor 31 . The acquisition unit 351 identifies the traveling direction of the second vehicle based on the temporal change in the position of the second vehicle.

The request unit 352 communicates with the management device 200 via the communication unit 32 . The request unit 352 acquires second vehicle state information specifying the state of the second vehicle. For example, the request unit 352 acquires dimension information from the storage unit 34 as the second vehicle state information. The request unit 352 sends information indicating the loaded weight or gross vehicle weight of the second vehicle or center-of-gravity position information indicating the center-of-gravity position of the second vehicle to the second vehicle state based on the measurement result of the weight sensor (not shown). You may acquire it as information. The request unit 352 transmits the position information acquired by the acquisition unit 351 and the second vehicle state information acquired from the storage unit 34 to the management device 200 . The requesting unit 352 also transmits information indicating the traveling direction of the second vehicle identified by the acquiring unit 351 to the management device 200 .

Request unit 352 receives emergency event information from management device 200 . The request unit 352 also receives location information associated with the emergency event information from the management device 200 . The request unit 352 outputs the received emergency event information and location information to the notification unit 353 .

The notification unit 353 notifies the driver of the emergency event information and the location information received by the request unit 352 . For example, the notification unit 353 outputs the emergency event indicated by the emergency event information and the position indicated by the positional information as voice through the speaker 33 . The notification unit 353 may cause the display of the car navigation system (not shown) installed in the second vehicle to display the emergency event indicated by the emergency event information and the position indicated by the position information. With such a configuration, the notification unit 353 can prevent accidents by notifying the driver of the second vehicle in advance of emergency events related to the travel route of the second vehicle and the state of the second vehicle.

[Emergency event amnestics]
FIG. 6 is a sequence diagram showing emergency event storage processing by the management system S. As shown in FIG. This processing procedure is started, for example, while the first vehicle 1 is running. First, the detection unit 141 determines whether or not an emergency event during running has been detected (S101). When the detection unit 141 detects an emergency event (YES in S101), the communication control unit 143 provides emergency event information indicating the emergency event detected by the detection unit 141, Position information indicating the position of the first vehicle 1 and vehicle information for specifying the state of the first vehicle 1 are transmitted to the management device 200 .

The acquisition unit 202 of the management device 200 acquires the vehicle identification information included in the vehicle information received by the communication control unit 201, and obtains the first vehicle state associated with the same vehicle identification information as the vehicle identification information in the storage unit 22. Information is acquired (S102). Acquisition unit 142 is connected to an external device via communication unit 21, and obtains weather information indicating the weather at the location indicated by the location information received by communication control unit 201 at the date and time when detection unit 141 detects emergency event information from the external device. (S103). The storage control unit 203 associates the emergency event information received by the communication control unit 201, the position information received, the weather information acquired by the acquisition unit 202, and the first vehicle state information acquired by the acquisition unit 202, and stores them in the storage unit. 22 (S104), and the process ends. In the determination of S101, the detection unit 141 repeats the determination of S101 when an emergency event is not detected (NO in S101).

[Emergency Event Notification Processing]
FIG. 7 is a sequence diagram showing emergency event notification processing by the management system S. As shown in FIG. This procedure starts while the second vehicle is running. First, the request unit 352 transmits position information indicating the position of the second vehicle and second vehicle state information specifying the state of the second vehicle to the management device 200 . The prediction unit 205 predicts the travel route of the second vehicle based on the position information received by the reception unit 204 (S201).

The response unit 206 identifies a position on the travel route of the second vehicle predicted by the prediction unit 205 and within a predetermined distance from the position indicated by the position information received by the reception unit 204 . The response unit 206 sends emergency event information associated in the storage unit 22 with the first vehicle state information having the same or similar attributes as the second vehicle state information received by the reception unit 204 and the position information indicating the identified position. Acquire (S202). The response unit 206 transmits the acquired emergency event information and the location information associated with this emergency event information in the storage unit 22 to the information requesting device 300 . The notification unit 353 notifies the driver of the emergency event indicated by the emergency event information received by the request unit 352 and the position indicated by the position information (S203).

According to the present embodiment, the storage control unit 203 stores the emergency event information, the position information, and the first vehicle state information in the storage unit 22 in association with each other. With such a configuration, the storage control unit 203 can build an emergency event information database that stores emergency event information in association with the state of the vehicle. Therefore, the administrator of the management device 200 can grasp emergency event information corresponding to a specific position and a specific vehicle state.

<Second embodiment>
In the first embodiment, an example in which the prediction unit 205 predicts the travel route of the second vehicle has been described. However, the invention is not so limited. For example, the driver inputs the travel route of the second vehicle to a car navigation system (not shown) installed in the second vehicle, and the acquisition unit 202 acquires the travel route input by the driver from the car navigation system. good too. The request unit 352 transmits the travel route acquired by the acquisition unit 202 to the management device 200 together with the second vehicle state information as position information indicating the position of the second vehicle.

The receiving unit 204 of the management device 200 receives the travel route from the information requesting device 300 . The response unit 206 stores the position information indicating the position on the travel route received by the reception unit 204 and the first vehicle state information having the same or similar attribute as the second vehicle state information received by the reception unit 204 in the storage unit 22. Transmitting the associated emergency event information to the second vehicle.

With such a configuration, the response unit 206 transmits to the information requesting device 300 emergency event information indicating an emergency event encountered by the first vehicle 1 on the travel route of the second vehicle. Therefore, the driver of the second vehicle can grasp in advance the emergency events that are likely to be encountered on the travel route and their positions.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes are possible within the scope of the gist thereof. be. For example, specific embodiments of device distribution/integration are not limited to the above-described embodiments. can be done. In addition, new embodiments resulting from arbitrary combinations of multiple embodiments are also included in the embodiments of the present invention. The effect of the new embodiment caused by the combination has the effect of the original embodiment.

1, 1a, 1b First vehicle 11, 31 GPS sensor 12, 21, 32 Communication unit 13, 22, 34 Storage unit 14, 23, 35 Control unit 33 Speaker 100 Information transmission device 101 Millimeter wave radar 102 Lateral acceleration sensor 103 Camera 141 detection units 142, 202, 351 acquisition units 143, 201 communication control unit 200 management device 203 storage control unit 204 reception unit 205 prediction unit 206 response unit 300 information request device 352 request unit 353 notification unit

Claims (7)

A management system comprising an information transmission device mounted on a first vehicle and a management device,
The information transmission device is
a detection unit that detects an emergency event during running;
a transmission-side acquisition unit that acquires position information indicating the position of the first vehicle;
for specifying the emergency event information indicating the emergency event detected by the detection unit, the position information indicating the position of the first vehicle when the detection unit detected the emergency event, and the state of the first vehicle; a transmission unit that transmits vehicle information to the management device;
The management device
a receiving unit that receives the location information and the vehicle information together with the emergency event information;
a management-side acquisition unit that acquires the state of the first vehicle as first vehicle state information based on the vehicle information;
a storage control unit that associates and stores the emergency event information, the position information, and the first vehicle state information in a storage unit;
has
The transmission unit transmits the vehicle information including vehicle identification information for identifying the first vehicle to the management device,
The management-side acquiring unit acquires dimensions of the first vehicle as the first vehicle state information based on the vehicle identification information included in the vehicle information received by the receiving unit;
The storage unit associates and stores the vehicle identification information and an encounter frequency indicating the frequency with which the first vehicle encounters an emergency event,
The memory control unit stores the emergency event information received together with the vehicle identification information when the encounter frequency associated with the vehicle identification information included in the received vehicle information in the storage unit is higher than a threshold value. erase from memory
management system. A management system comprising an information transmission device mounted on a first vehicle and a management device,
The information transmission device is
a detection unit that detects an emergency event during running;
a transmission-side acquisition unit that acquires position information indicating the position of the first vehicle;
A vehicle for specifying the state of the first vehicle and the position information indicating the position of the first vehicle when the detection unit detects the emergency event, together with the emergency event information indicating the emergency event detected by the detection unit. information is transmitted to the management device, and the vehicle information including the center-of-gravity position information indicating the center-of-gravity position of the first vehicle is transmitted to the management device together with the emergency event information indicating the rollover emergency event of the first vehicle. a transmission unit configured to transmit the vehicle information not including the center-of-gravity position information to the management device together with the emergency event information indicating the lane departure emergency event of the first vehicle ;
The management device
a receiving unit that receives the location information and the vehicle information together with the emergency event information;
a management-side acquisition unit that acquires the state of the first vehicle as first vehicle state information based on the vehicle information;
a storage control unit that associates and stores the emergency event information, the position information, and the first vehicle state information in a storage unit;
having
management system. The management-side acquisition unit acquires weather information indicating the weather based on the date and time when the detection unit detected the emergency event and the location information received together with the emergency event information indicating the emergency event,
The storage control unit associates and stores the emergency event information, the position information, the first vehicle state information, and the weather information.
3. Management system according to claim 1 or 2 . Further comprising an information request device mounted on the second vehicle,
The information requesting device
a request-side acquisition unit that acquires position information indicating the position of the second vehicle;
a request unit that transmits the position information indicating the position of the second vehicle and the second vehicle state information specifying the state of the second vehicle to the management device;
The management device
a reception unit that receives the position information and the second vehicle state information;
first vehicle state information having the same or similar attribute as the second vehicle state information received by the reception unit; position information indicating a position within a predetermined distance from the position indicated by the position information received by the reception unit; a response unit that transmits the emergency event information associated in the storage unit to the information request device,
Management system according to any one of claims 1 to 3 . The request-side acquisition unit acquires a travel route of the second vehicle,
The request unit transmits the travel route as the position information to the management device,
The reception unit receives the travel route,
The response unit stores the position information indicating the position on the travel route received by the reception unit and the first vehicle state information having the same or similar attribute as the second vehicle state information received by the reception unit. transmitting the emergency event information associated in to the second vehicle;
5. Management system according to claim 4 . The management device
further comprising a prediction unit that predicts a travel route of the second vehicle based on the position information received by the reception unit;
The response unit stores the emergency event information associated in the storage unit with position information indicating a position on the travel route predicted by the prediction unit and the second vehicle state information received by the reception unit. to the vehicle,
5. Management system according to claim 4 . An information transmission method executed by a computer mounted on a vehicle, comprising:
detecting an emergency event while driving;
obtaining location information indicating the location of the vehicle;
a step of transmitting, together with emergency event information indicating the detected emergency event, the position information indicating the position of the vehicle when the emergency event was detected and vehicle information for identifying the state of the vehicle to a management device;
has
In the transmitting step, the vehicle information including center-of-gravity position information indicating the center-of-gravity position of the first vehicle is transmitted to the management device together with the emergency event information indicating the rollover emergency event of the first vehicle. transmitting the vehicle information that does not include the center-of-gravity position information to the management device together with the emergency event information indicating an emergency event of lane departure of the vehicle ;
How information is sent.

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