JP2021103436A - Notification control device, notification device, notification control method, notification control program, and vehicle information transmitting device - Google Patents

Abstract

To provide a notification control device capable of properly notifying a user of risk of user collision with a vehicle.SOLUTION: A notification control device 39 includes: a vehicle information acquisition unit 391 that acquires travelling status information periodically emitted by at least one vehicle located around a user; a user information acquisition unit 392 that acquires user movement state information relevant to current position and a movement direction of the user; and a notification control unit 394 that controls a notification unit 40 to notify a user of warning information representing that there is risk of collision between the vehicle and the user or that the vehicle is approaching on the basis of a degree of risk determined on the basis of whether the danger information is included in the traveling status information, the danger information representing at least one of a driver of the vehicle or the vehicle has an error, the travelling status information, and the user movement state information.SELECTED DRAWING: Figure 2

Description

The present disclosure relates to a notification control device, a notification device, a notification control method, a notification control program, and a vehicle information transmission device.

Conventionally, there are known mobile phones that notify pedestrians of the danger of a vehicle colliding (see, for example, Patent Document 1). In the technique of Patent Document 1, information is received from the in-vehicle communication device by ITS communication only when the pedestrian is walking, and if the electric field strength at the time of receiving the information is larger than the threshold value, there is a risk of collision with the vehicle. Notify that there is.

Japanese Unexamined Patent Publication No. 2013-131143

By the way, when an abnormality occurs in a vehicle or a driver, the possibility that the vehicle collides with a pedestrian located near the vehicle may increase. Therefore, in the conventional technique, there is room for improvement in notification of the risk of collision.

An object of the present disclosure is to provide a notification control device, a notification device, a notification control method, a notification control program, and a vehicle information transmission device capable of more appropriately notifying a user of a risk of collision with a vehicle.

The notification control device of the present disclosure is a notification control device that controls a notification unit of a notification device that can be carried by a user, and is a current state of the vehicle that is periodically transmitted by at least one vehicle located around the user. At least one of the vehicle and the driver of the vehicle, the vehicle information acquisition unit that acquires the travel status information regarding the position and the travel direction, the user information acquisition unit that acquires the user movement status information regarding the current position and the travel direction of the user, and the user information acquisition unit. Based on whether or not the driving situation information includes danger information indicating that an abnormality has occurred in the vehicle, and the degree of danger determined based on the driving situation information and the user movement situation information, the vehicle and the vehicle It is provided with a notification control unit that notifies the notification unit of warning information indicating that there is a risk of collision with the user or that the vehicle is approaching.

The notification device of the present disclosure includes a notification unit and the above-mentioned notification control device.

The notification control method of the present disclosure is a notification control method in which a computer controls a notification unit of a notification device that can be carried by a user, and the computer periodically transmits a notification by at least one vehicle located around the user. A vehicle information acquisition step for acquiring travel status information regarding the current position and travel direction of the vehicle, a user information acquisition step for acquiring user movement status information regarding the current position and travel direction of the user, and the vehicle and the vehicle. The degree of danger determined based on whether or not the driving status information includes danger information indicating that at least one of the drivers of the vehicle has an abnormality, and the driving status information and the user movement status information. Based on the above, the notification control step of notifying the notification unit of warning information indicating that there is a risk of collision between the vehicle and the user or the approach of the vehicle is executed.

The notification control program of the present disclosure is a notification control program that causes a computer to control a notification unit of a notification device that can be carried by a user, and periodically transmits the notification to the computer by at least one vehicle located around the user. A vehicle information acquisition step for acquiring travel status information regarding the current position and travel direction of the vehicle, a user information acquisition step for acquiring user movement status information regarding the current position and travel direction of the user, and the vehicle and the said vehicle. The degree of danger determined based on whether or not the driving status information includes danger information indicating that at least one of the drivers of the vehicle has an abnormality, and the driving status information and the user movement status information. Based on the above, the notification control step of notifying the notification unit of warning information indicating that there is a risk of collision between the vehicle and the user or the approach of the vehicle is executed.

In the vehicle information transmitting device of the present disclosure, an abnormality has occurred in at least one of the traveling condition acquisition unit that acquires the traveling condition detection information regarding the detection result of the current position and the traveling direction of the vehicle and the vehicle and the driver of the vehicle. The transmission control unit includes an abnormality determination unit that determines whether or not the vehicle is present, and a transmission control unit that periodically transmits information on the travel status of the vehicle to the outside. When it is determined that the abnormality has occurred, the driving situation information including the danger information indicating that the abnormality has occurred and the driving condition detection information is transmitted, and it is determined that the abnormality has not occurred. , The driving situation information which does not include the danger information and includes the driving situation detection information is transmitted.

According to the notification control device, the notification device, the notification control method, the notification control program, and the vehicle information transmission device of the present disclosure, the risk of the user colliding with the vehicle can be more appropriately notified.

It is a block diagram which shows the schematic structure of the notification system which concerns on 1st and 2nd Embodiment of this disclosure. It is a block diagram which shows the schematic structure of the terminal apparatus which concerns on 1st and 2nd Embodiment of this disclosure. It is a flowchart of the vehicle information transmission processing performed by the vehicle-mounted device according to the first and second embodiments of the present disclosure. It is a flowchart of the notification control processing performed by the terminal apparatus which concerns on 1st Embodiment of this disclosure. It is a flowchart of the notification control processing performed by the terminal apparatus which concerns on the 2nd Embodiment of this disclosure.

[First Embodiment]
Hereinafter, the first embodiment of the present disclosure will be described with reference to the drawings.

<Configuration of notification system>
First, the configuration of the notification system will be described. FIG. 1 is a block diagram showing a schematic configuration of a notification system according to a first embodiment and a second embodiment described later. FIG. 2 is a block diagram showing a schematic configuration of a terminal device according to the first and second embodiments.

The notification system 1 shown in FIG. 1 notifies the user when there is a risk of the vehicle colliding with the user. The notification system 1 includes an in-vehicle device 2 provided in the vehicle and a terminal device 3 that can be carried by the user. Although only one vehicle-mounted device 2 and one terminal device 3 are shown in FIG. 1, the notification system 1 is actually composed of a large number of vehicle-mounted devices 2 and terminal devices 3, respectively. Here, the user may be located on the ground (eg, a sidewalk). For example, the user is a pedestrian, or a person riding a bicycle, a wheelchair, or the like. In the following, an example in which the user is a pedestrian will be mainly described.

The in-vehicle device 2 includes a communication unit 21, a traveling status detection unit 22, a vehicle status detection unit 23, a driver status detection unit 24, a storage unit 25, and a vehicle information transmission device 26.

The communication unit 21 transmits various information to the terminal device 3 via the network.

The traveling condition detection unit 22 detects the traveling condition of the own vehicle. The traveling condition detection unit 22 includes a vehicle current position detecting unit 221, a traveling speed detecting unit 222, and a traveling direction detecting unit 223. The vehicle current position detection unit 221 detects the current position of the own vehicle and outputs the detection result to the vehicle information transmission device 26. The vehicle current position detection unit 221 detects a horizontal position (planar position) as the current position. The traveling speed detection unit 222 detects the traveling speed of the own vehicle and outputs the detection result to the vehicle information transmitting device 26. The traveling direction detection unit 223 detects the traveling direction of the own vehicle and outputs the detection result to the vehicle information transmitting device 26. The traveling direction detection unit 223 may be able to detect not only the horizontal direction but also the height direction. A well-known sensor capable of detecting various situations of the own vehicle can be used for the vehicle current position detection unit 221 and the traveling speed detecting unit 222 and the traveling direction detecting unit 223.

The own vehicle situation detection unit 23 detects the situation of the own vehicle and outputs the detection result to the vehicle information transmission device 26. The detected conditions of the vehicle include whether or not the steering wheel, brake, accelerator, engine, various meters, electronic mirrors, and other configurations necessary for driving can be operated, and whether or not the configuration is out of order. Etc., but are not limited to these. Examples of the vehicle status detection unit 23 include, but are not limited to, a processor that acquires CAN (Controller Area Network) information and a sensor that detects the status of the vehicle.

The driver status detection unit 24 detects the driver status and outputs the detection result to the vehicle information transmission device 26. Examples of the driver status detection unit 24 include an imaging unit that captures the driver's facial expression and posture, a sensor that detects the driver's heartbeat, a sensor that detects the driver's contact state with the steering wheel, and a sensor that detects the accelerator and brake operation states. Not limited to these.

The storage unit 25 is composed of, for example, a non-volatile memory. The storage unit 25 stores various information necessary for processing of the vehicle-mounted device 2.

The vehicle information transmitting device 26 may be configured to include a processor and a memory. The vehicle information transmission device 26 may allow the processor to execute the vehicle information transmission program stored in the memory. The vehicle information transmission device 26 includes a traveling status acquisition unit 261, an abnormality determination unit 262, and a transmission control unit 263.

The traveling condition acquisition unit 261 periodically acquires the detection result of the traveling condition detecting unit 22, that is, the detection result of the current position, the traveling speed, and the traveling direction of the own vehicle as the traveling condition detection information.

The abnormality determination unit 262 periodically acquires the detection result of the own vehicle status detection unit 23 as the own vehicle status information. The abnormality determination unit 262 periodically acquires the detection result in the driver status detection unit 24 as driver status information. The abnormality determination unit 262 determines whether or not an abnormality has occurred in at least one of the own vehicle and the driver based on the own vehicle status information and the driver status information.

The transmission control unit 263 controls the communication unit 21 to transmit the travel status information regarding the travel status of the own vehicle around the own vehicle at a predetermined time interval (for example, an interval of several tens of milliseconds or an interval of several hundred milliseconds). Regularly send (outgo) to. The transmission control unit 263 transmits different travel status information based on the determination result in the abnormality determination unit 262. For example, when the abnormality determination unit 262 determines that an abnormality has occurred, the transmission control unit 263 transmits the travel status information including the danger information indicating that the abnormality has occurred and the travel status detection information. .. When the abnormality determination unit 262 determines that no abnormality has occurred, the transmission control unit 263 transmits the travel status information that does not include the danger information and includes the travel status detection information. This traveling condition information includes predetermined road-to-vehicle communication, predetermined vehicle-to-vehicle communication, or predetermined pedestrian-to-vehicle communication (for example, V2X (Vehicle to Everything), V2V (Vehicle to Vehicle), V2P (Vehicle to Pedestrian), V2I (Vehicle). It can be a signal based on the standard of (to Infrastructure), etc.). Further, for transmission of driving status information, for example, V2X, V2V, V2P, or V2I technology can be used.

The terminal device 3 is an example of a notification device. The terminal device 3 is, for example, a tablet terminal, a smartphone, a mobile phone, or the like. As shown in FIG. 2, the terminal device 3 includes a communication unit 31, a display unit 32, a sound output unit 33, a vibration generation unit 34, an operation unit 35, a movement status detection unit 36, and a map information storage unit. A 37, a storage unit 38, and a notification control device 39 are provided.

The communication unit 31 receives various information from the in-vehicle device 2 via the network. The display unit 32, the sound output unit 33, and the vibration generating unit 34 constitute a notification unit 40. The display unit 32 includes, for example, a display such as an LCD (Liquid Crystal Display) or an OLED (Organic Light Emitting Diode). The display unit 32 displays display information (images and the like) under the control of the notification control device 39. The sound output unit 33 includes, for example, a speaker. The sound output unit 33 outputs sound according to the control of the notification control device 39. The vibration generating unit 34 includes, for example, a vibrator. The vibration generating unit 34 generates vibration according to the control of the notification control device 39. The operation unit 35 may be configured to include a touch panel provided on the display unit 32, or may be configured to include various input devices (keys, switches, buttons, dials, etc.).

The movement status detection unit 36 detects the movement status of the user carrying the terminal device 3. The movement status detection unit 36 includes a terminal current position detection unit 361, a movement speed detection unit 362, and a movement direction detection unit 363. The terminal current position detection unit 361 receives a positioning signal from one or more types of positioning satellites such as GPS (Global Positioning System), Galileo, and Michibiki, and the terminal current position detection unit 361 receives the positioning signal from the user's current position based on the positioning signal. Information (for example, latitude / longitude) is detected, and the detection result is output to the notification control device 39. The movement speed detection unit 362 detects the movement speed of the user and outputs the detection result to the notification control device 39. The movement direction detection unit 363 detects the movement direction of the user and outputs the detection result to the notification control device 39. The moving direction detection unit 363 may be able to detect not only the horizontal direction but also the height direction. The terminal current position detection unit 361, movement speed detection unit 362, and movement direction detection unit 363 use well-known sensors (for example, an acceleration sensor, a gyroscope, a geomagnetic sensor, an altimeter, etc.) capable of detecting various situations of the user described above. It can be configured to include.

The map information storage unit 37 and the storage unit 38 are each composed of, for example, non-volatile memory (for example, ROM (Read Only Memory), HDD (Hard Disk Drive), etc.). The map information storage unit 37 stores map information (for example, a two-dimensional map or a three-dimensional map of any one or more regions / countries). The storage unit 38 stores various information necessary for processing of the terminal device 3. The map information storage unit 37 and the storage unit 38 may be configured by one device or may be configured by different devices.

The broadcast control device 39 may be configured to include a processor and a memory. The notification control device 39 can execute the notification control program stored in the memory by the processor. The notification control device 39 includes a vehicle information acquisition unit 391, a user information acquisition unit 392, a danger determination unit 393, and a notification control unit 394.

The vehicle information acquisition unit 391 receives, from the in-vehicle device 2, driving status detection information regarding the detection result of the current position and the traveling direction of the vehicle, danger information indicating that at least one of the vehicle and the driver has an abnormality, and danger information indicating that an abnormality has occurred in at least one of the vehicle and the driver. Of these, the traveling status information including at least the traveling status detection information is acquired via the communication unit 31.

The user information acquisition unit 392 acquires the detection result by the movement status detection unit 36, that is, the detection result of the user's current position, movement speed, and movement direction from the movement status detection unit 36 as user movement status information.

The danger determination unit 393 determines the risk of the vehicle colliding with the user based on the traveling status information and the user movement status information. For example, the risk determination unit 393 determines whether or not there is a risk of the vehicle colliding with the user, the risk level (for example, three stages), the probability of collision, and the possibility of a collision based on the driving situation information and the environmental information. Judge (or estimate) time, etc.

The notification control unit 394 causes the notification unit 40 to notify the warning information (image, sound, and / or vibration) corresponding to the determination result in the danger determination unit 393. For example, when it is determined that there is a risk of the vehicle colliding with the user, the notification control unit 394 determines predetermined warning information (for example, a predetermined warning image, a predetermined warning sound (buzzer, etc.), a predetermined vibration, etc.). Is notified to the notification unit 40. When it is determined that there is no danger of the vehicle colliding with the user, the notification control unit 394 does not notify the notification unit 40 of this predetermined warning information. In another embodiment, the higher the danger level (determined by the danger determination unit 393), the greater the warning degree (in other words, the warning information that can give a stronger warning to the user) is notified by the notification unit. 40 may be notified. Here, as the warning degree of the warning information is larger, the brightness of the warning image may be higher, the size of the warning image may be larger, or the volume of the warning sound may be louder. However, the magnitude of the vibration (for warning) may be larger. In another embodiment, the higher the probability of collision (determined by the risk determination unit 393), the greater the warning degree, the more warning information is notified to the notification unit 40. Alternatively, as the length of time until a collision can occur, which is determined by the danger determination unit 393, becomes smaller, the notification unit 40 notifies the warning information having a higher warning degree than the warning information currently being notified. The notification unit 40 may be controlled so as to do so.

<Operation of notification system>
Next, the operation of the notification system 1 will be described. FIG. 3 is a flowchart of vehicle information transmission processing performed by the vehicle-mounted device of the first and second embodiments. FIG. 4 is a flowchart of the notification control process performed by the terminal device of the first embodiment.

[Operation of in-vehicle device]
First, the operation of the in-vehicle device 2 will be described. While the vehicle is running, the running status detection unit 22 of the in-vehicle device 2 periodically detects the running status of the own vehicle and outputs the detection result to the vehicle information transmission device 26. The own vehicle situation detection unit 23 detects the situation of the own vehicle and outputs the detection result to the vehicle information transmission device 26. The driver status detection unit 24 periodically detects the driver status and outputs the detection result to the vehicle information transmission device 26.

As shown in FIG. 3, the traveling status acquisition unit 261 of the vehicle information transmitting device 26 acquires the detection result from the traveling status detection unit 22 as the traveling status detection information (step S1). The abnormality determination unit 262 acquires the detection result from the vehicle status detection unit 23 as the vehicle status information (step S2). The abnormality determination unit 262 acquires the detection result from the driver status detection unit 24 as driver status information (step S3).

The abnormality determination unit 262 determines an abnormality of the own vehicle and the driver based on the own vehicle status information and the driver status information (step S4). The abnormality determination unit 262 has a steering wheel, a brake, an accelerator, an engine, various meters, an electronic mirror, etc., when the operation of the configuration necessary for operation is impossible or difficult, or when the configuration is out of order, the vehicle owns the vehicle. It is determined that an abnormality has occurred in. The abnormality determination unit 262 determines that an abnormality has occurred in the driver when the driver is asleep, has lost consciousness, is drunk, or has difficulty in normal driving.

For example, in the case of a processor in which the vehicle status detection unit 23 acquires CAN information, the abnormality determination unit 262 determines whether or not an abnormality has occurred in the vehicle based on the CAN information, and hacks the control device of the vehicle. Determines whether or not a security error has occurred. In the case of a sensor in which the vehicle status detection unit 23 detects the status of the vehicle, the abnormality determination unit 262 determines whether or not an abnormality has occurred in the vehicle based on the detection result of the sensor.

For example, when the driver status detection unit 24 is an imaging unit, the abnormality determination unit 262 acquires the captured image as the driver status information, and determines the driver abnormality based on the facial expression and posture of the driver in the captured image. When the driver status detection unit 24 is a sensor, the abnormality determination unit 262 determines that an abnormality has occurred in the driver, for example, when it is determined that the situation is as follows based on the detection result.
・ Situation where the driver's heart rate is out of the normal value ・ Situation where the driver has not touched the steering wheel for more than the first threshold time ・ Situation where the operating state of the driver's accelerator or brake has not changed for more than the second threshold time

After that, the abnormality determination unit 262 determines whether or not an abnormality has occurred in at least one of the own vehicle and the driver (step S5). When the abnormality determination unit 262 determines that an abnormality has occurred in at least one of the own vehicle and the driver (step S5: Yes), the transmission control unit 263 receives the traveling status detection information acquired in step S1 and the driving status detection information. Danger information indicating that an abnormality has occurred in at least one of the own vehicle and the driver, and running condition information including the driving condition information are transmitted to the surroundings of the own vehicle (step S6), and the process ends. On the other hand, when the abnormality determination unit 262 determines that no abnormality has occurred in both the own vehicle and the driver (step S5: No), the transmission control unit 263 includes the traveling status detection information acquired in step S1. , The driving situation information including the danger information is transmitted (transmitted) to the surroundings of the own vehicle (step S7), and the process is completed. By periodically performing the above steps S1 to S7 by the vehicle information transmitting device 26, the traveling status information is periodically transmitted to the surroundings of the own vehicle.

[Operation of terminal device]
Next, the operation of the terminal device 3 will be described. When the user operates the operation unit 35 of the terminal device 3 to activate the notification control program, the vehicle information acquisition unit 391 of the notification control device 39 constituting the terminal device 3 passes through the communication unit 31 as shown in FIG. It is determined whether or not the traveling status information has been acquired from the vehicle (step S11). When it is determined that the vehicle information acquisition unit 391 has not acquired the traveling status information (step S11: No), the notification control unit 394 does not notify the danger of collision (turns off the danger notification) (. Step S12), the notification control process is terminated.

On the other hand, when it is determined that the vehicle information acquisition unit 391 has acquired the travel status information (step S11: Yes), the danger determination unit 393 includes the danger information in the travel status information acquired in step S11. Whether or not it is determined (step S13). When the danger determination unit 393 determines that the travel status information includes the danger information (step S13: Yes), the danger determination unit 393 determines that there is a risk of collision (step S14). When the terminal device 3 acquires the running status information from the plurality of in-vehicle devices 2, the danger determination unit 393 determines that the running status information of at least one in-vehicle device 2 contains the danger information. If so, it is determined that there is a risk of collision. Then, the notification control unit 394 controls the notification unit 40 to notify the danger of collision (turn on the danger notification) (step S15). For example, the notification control unit 394 collides with the display using at least one of the display on the display unit 32, the sound output from the sound output unit 33, and the vibration of the terminal device 3 driven by the vibration generation unit 34. Notify the danger. After that, the notification control unit 394 ends the danger notification after continuing the notification for a predetermined time or based on the operation of the operation unit 35 by the user.

The process of step S14 is performed after the process of step S13 when an abnormality has occurred in at least one of the vehicle and the driver. In this case, when the notification control unit 394 notifies the danger of collision (step S15), it may notify only that it is dangerous, and further indicates whether the vehicle or the driver has an abnormality. It may be notified, or the content of the abnormality may be further notified.

When the danger determination unit 393 determines that the travel status information does not include the danger information (step S13: No), the user information acquisition unit 392 uses the detection result of the movement status detection unit 36 as the user movement status information. Acquire (step S16). The movement status detection unit 36 may start the detection under the control of the user information acquisition unit 392, or may start the detection by triggering the activation of the notification control program regardless of the control of the user information acquisition unit 392. Alternatively, the detection may be performed at all times regardless of the activation of the notification control program.

Next, the danger determination unit 393 calculates the collision possibility, which is an example of the value indicating the danger, based on the travel status detection information of the travel status information and the user movement status information (step S17). For example, in the danger determination unit 393, the traveling path of the vehicle and the traveling path of the user intersect based on the current position, traveling speed, and traveling direction of the vehicle and the current position, traveling speed, and traveling direction of the user. At least one of the position (hereinafter referred to as "intersection position") and the position where the distance between the vehicle and the user is less than a predetermined distance (hereinafter referred to as "approaching position") is estimated. Then, the danger determination unit 393 estimates the time until the vehicle and the user reach at least one of the estimated positions, and calculates the collision possibility based on the estimated time. At this time, the risk determination unit 393 performs the calculation so that the shorter the estimated time, the higher the collision possibility, that is, the greater the collision possibility. The method of calculating the possibility of collision is not limited to the above method, and another method that can appropriately reflect the possibility of collision between the vehicle and the user may be used.

The danger determination unit 393 determines whether or not the collision possibility calculated in step S17 is equal to or greater than the first threshold value (step S18). When the risk determination unit 393 determines that the possibility of collision is equal to or higher than the first threshold value (step S18: Yes), it determines that there is a risk of collision (step S14). When the terminal device 3 acquires the traveling status information from the plurality of in-vehicle devices 2, the danger determination unit 393 sets the first threshold value of the collision possibility of at least one of the collision possibilities of each vehicle. If it is determined that the above is the case, the process of step S14 is performed. The process of step S14 is performed after the process of step S18 when both the vehicle and the driver have no abnormality. In this case, when the notification control unit 394 notifies the danger of collision (step S15), it may notify only that it is dangerous, and neither the vehicle nor the driver has an abnormality. May be further notified.

On the other hand, when the danger determination unit 393 determines that the possibility of collision is not equal to or higher than the first threshold value (step S18: No), it determines that there is no danger of collision (step S19), and notifies the danger of collision. Without performing (step S12), the notification control process is terminated. When the terminal device 3 acquires the traveling status information from the plurality of in-vehicle devices 2, the danger determination unit 393 determines that all the collision possibilities of each in-vehicle device 2 are not equal to or higher than the first threshold value. , Step S19 is performed. When the notification control device 39 periodically performs the above steps S11 to S19 and there is a possibility that the vehicle collides with the user, the user is notified at an appropriate timing.

<Action and effect of the first embodiment>
The vehicle information transmitting device 26 acquires the traveling condition detection information regarding the detection result of the current position and the traveling direction of the vehicle, and periodically transmits the traveling condition information including at least the traveling condition detection information to the outside. The vehicle information transmitting device 26 determines whether or not an abnormality has occurred in at least one of the vehicle and the driver, and if it is determined that an abnormality has occurred, the vehicle information transmitting device 26 includes travel condition information including danger information and travel condition detection information. If it is determined that no abnormality has occurred, the driving condition information that does not include the danger information and includes the driving condition detection information is transmitted. In this way, since the vehicle information transmitting device 26 periodically transmits the traveling status information, even if an abnormality occurs in the vehicle or the driver and the vehicle does not travel in accordance with the laws and regulations, there is a danger to that effect. Information can be immediately transmitted to the notification control device 39. Then, the notification control device 39 that has acquired the danger information can immediately notify that there is a risk that the vehicle will collide with the user. Therefore, the notification control device 39 can appropriately notify the danger of the user colliding with the vehicle.

When the travel status information includes danger information, the notification control device 39 has a risk of the vehicle colliding with the user regardless of the possibility of collision between the vehicle and the user based on the travel status detection information and the user movement status information. Judge that there is. When the travel status information does not include danger information, the notification control device 39 calculates the possibility of collision between the vehicle and the user based on the travel status detection information and the user movement status information. The notification control device 39 determines that there is a risk of the vehicle colliding with the user when the collision possibility is equal to or higher than the first threshold value, and there is no risk of the vehicle colliding with the user when the collision possibility is less than the first threshold value. Is determined. That is, the danger information includes the possibility of collision when the driving situation information includes the danger information and when the driving situation information does not include the danger information, or when the driving situation information includes the danger information. Even if the possibility of collision is lower than the possibility of collision when the information is not provided, the notification control device 39 determines that the risk when the driving situation information includes the danger information is higher than the risk when the driving situation information does not include the danger information. To do. Then, when the notification control device 39 determines that there is a risk of collision, it notifies that fact. Therefore, when an abnormality occurs in the vehicle or the driver, the notification control device 39 can more appropriately notify the danger of a collision caused by the abnormality.

[Second Embodiment]
Next, a second embodiment of the present disclosure will be described with reference to the drawings. In the second embodiment, even if an abnormality occurs in at least one of the vehicle and the driver, there is no risk of collision when the possibility of collision based on the driving status detection information and the user movement status information is low. It is different from the first embodiment in that it is determined. In the following, only the notification control process performed by the terminal device will be described.

<Operation of notification system>
[Operation of terminal device]
FIG. 5 is a flowchart of the notification control process performed by the terminal device of the second embodiment. The same operation as that of the first embodiment is designated by the same reference numerals, and the description thereof will be omitted or simplified.

When the user activates the notification control program of the terminal device 3, the vehicle information acquisition unit 391 of the notification control device 39 determines whether or not the travel status information has been acquired as shown in FIG. 5 (step S11). When it is determined that the vehicle information acquisition unit 391 has not acquired the traveling status information (step S11: No), the notification control unit 394 performs the notification control process without notifying the danger of collision (step S12). finish.

On the other hand, when it is determined that the vehicle information acquisition unit 391 has acquired the traveling status information (step S11: Yes), the user information acquisition unit 392 acquires the user movement status information (step S16). Next, the danger determination unit 393 calculates the possibility of collision based on the travel status detection information of the travel status information and the user movement status information (step S17).

After that, the danger determination unit 393 determines whether or not the driving status information includes the danger information (step S13), and when it is determined that the driving status information includes the danger information (step S13: Yes). ), It is determined whether or not the collision possibility calculated in step S17 is equal to or greater than the second threshold value (step S20). When the risk determination unit 393 determines that the possibility of collision is not equal to or higher than the second threshold value (step S20: No), it determines that there is no risk of collision (step S19). In this way, even when the driving situation information includes danger information, the reason for determining that there is no risk of collision when the possibility of collision is not equal to or higher than the second threshold value is, for example, an abnormality in the vehicle. Even if it occurs, if the user is unlikely to collide with the vehicle immediately, such as when the vehicle is traveling far from the user, it is not necessary to notify that it is dangerous. is there. When the terminal device 3 acquires the driving status information from the plurality of vehicle-mounted devices 2, the danger determination unit 393 determines that all the collision possibilities based on the driving status information of each vehicle-mounted device 2 are equal to or higher than the second threshold value. If it is determined that this is not the case, it is determined that there is no risk of collision.

On the other hand, when the risk determination unit 393 determines that the possibility of collision is equal to or higher than the second threshold value (step S20: Yes), it determines that there is a risk of collision (step S14). When the terminal device 3 acquires the traveling status information from the plurality of vehicle-mounted devices 2, the danger determination unit 393 can collide with at least one of the collision possibilities based on the traveling status information of each vehicle-mounted device 2. When it is determined that the sex is equal to or higher than the second threshold value, it is determined that there is a risk of collision. Then, the notification control unit 394 notifies the danger of collision (step S15).

The process of step S14 is performed after the process of step S20 when an abnormality has occurred in at least one of the vehicle and the driver. In this case, the notification control unit 394 may notify only that it is dangerous when notifying the danger of collision, or may notify whether an abnormality has occurred in the vehicle or the driver. However, the content of the abnormality may be notified.

When the danger determination unit 393 determines that the travel status information does not include the danger information (step S13: No), the danger determination unit 393 determines whether or not the collision possibility calculated in step S17 is equal to or greater than the third threshold value. (Step S21). The third threshold value is set to a value larger than the second threshold value. When the risk determination unit 393 determines that the possibility of collision is not equal to or higher than the third threshold value (step S21: No), it determines that there is no risk of collision (step S19). As in the case of step S20, when the terminal device 3 acquires the traveling status information from the plurality of vehicle-mounted devices 2, the danger determination unit 393 considers that all the collision possibilities of the vehicle-mounted devices 2 are the third. If it is determined that the threshold value is not equal to or higher than the threshold value of, the process of step S19 is performed.

On the other hand, when the risk determination unit 393 determines that the possibility of collision is equal to or higher than the third threshold value (step S21: Yes), it determines that there is a risk of collision (step S14). As in the case of step S20, when the terminal device 3 acquires the traveling status information from the plurality of in-vehicle devices 2, the danger determination unit 393 has at least one of the collision possibilities of each in-vehicle device 2. When it is determined that the two collision possibilities are equal to or higher than the third threshold value, the process of step S14 is performed.

The process of step S14 is performed after the process of step S21 when both the vehicle and the driver have no abnormality. In this case, the notification control unit 394 may notify only that it is dangerous when notifying the danger of collision, or notifies that neither the vehicle nor the driver has an abnormality. May be good. When the notification control device 39 periodically performs the above steps S11 to S17 and S19 to S21 and there is a possibility that the vehicle collides with the user, the user is notified to that effect at an appropriate timing. ..

<Action and effect of the second embodiment>
When the travel status information includes danger information, the notification control device 39 has a risk of the vehicle colliding with the user when the collision possibility based on the travel status detection information and the user movement status information is equal to or higher than the second threshold value. Judged as having sex. The notification control device 39 determines that there is a risk of the vehicle colliding with the user when the collision possibility is equal to or higher than the third threshold value even when the traveling status information does not include the danger information. Here, the third threshold value is larger than the second threshold value. That is, the danger information includes the possibility of collision when the driving situation information includes the danger information and when the driving situation information does not include the danger information, or when the driving situation information includes the danger information. Even if the possibility of collision is lower than the possibility of collision when the information is not provided, the notification control device 39 determines that the risk when the driving situation information includes the danger information is higher than the risk when the driving situation information does not include the danger information. To do. Then, when the notification control device 39 determines that there is a risk of collision, it notifies that fact. Therefore, when an abnormality occurs in the vehicle or the driver, the notification control device 39 can appropriately notify the danger of a collision caused by the abnormality.

Further, even when the driving situation information includes danger information, it is determined that there is no danger of collision when the possibility of collision is not equal to or higher than the second threshold value, and for example, an abnormality has occurred in the vehicle. However, if the user is unlikely to collide with the vehicle immediately, such as when the vehicle is traveling at a position far from the user, the danger is not notified. Therefore, the notification control device 39 can appropriately reflect the possibility of the user colliding with the vehicle and notify the danger. In particular, the notification control device 39 can appropriately notify the danger of collision by a simple method of comparing the magnitude relationship between the possibility of collision and the second threshold value or the third threshold value.

[Modification example]
Needless to say, the present disclosure is not limited to those shown in the embodiments described above, and various modifications can be made without departing from the spirit of the present disclosure.

For example, the notification control device 39 of the first embodiment may perform the following processing. When the notification control device 39 determines that the traveling status information has been acquired in the process of step S11, the notification control device 39 performs the process of step S13 after performing the processes of steps S16 to S17. Then, when the notification control device 39 determines in the process of step S13 that the traveling situation information does not include the danger information, the process of step S18 may be performed.

In the first and second embodiments, the vehicle-mounted device 2 may detect only an abnormality of the vehicle or an abnormality of the driver and include the detection result as danger information in the traveling situation information. In the first and second embodiments, the notification control unit 394 may notify the notification unit 40 to that effect when there is no risk of the user colliding with the vehicle. In the first and second embodiments, the traveling speed of the vehicle may not be included in the traveling status information, and the moving speed of the user may not be included in the user moving status information. In this case, the danger determination unit 393 determines, for example, a preset general vehicle traveling speed and user's moving speed, the current position and traveling direction of the vehicle in the traveling situation information, and the user's moving situation information user's current position. Based on the moving direction and the moving direction, the intersection position and the approaching position of the vehicle and the user may be estimated.

The notification device according to the present disclosure may be a user-portable object (for example, a watch, glasses, a cane, a bag, a school bag, a necklace, or clothes).

In the above-described embodiment, an example in which the terminal device 3 directly receives the traveling condition information periodically transmitted by the vehicle from the vehicle has been mainly described, but the present disclosure is not limited to such an example. For example, the traveling condition information transmitted by the vehicle can be received by a first communication device (for example, a traffic light, a roadside device, a base station, etc.) installed on the road based on communication such as V2X. In this case, the first communication device may transmit the traveling situation information to the surroundings at predetermined time intervals, or may transmit the information to the terminal device 3. Then, the terminal device 3 may acquire this traveling status information by receiving it from the first communication device based on communication such as V2X.

In another embodiment, the first communication device transmits the received travel status information via a network (for example, the Internet) to a second communication device (for example, another traffic light, another roadside unit, another base station, etc.). , Or it can be sent to an external server, etc.). In this case, the second communication device may transmit the traveling situation information to the surroundings at predetermined time intervals, or may directly transmit the information to the terminal device 3. Then, the terminal device 3 may acquire this traveling status information by receiving it from the second communication device.

Although the embodiments according to the present disclosure have been described in detail with reference to the drawings, the functions of the above-described devices can be realized by a computer program.

Computers that programmatically realize the functions of each of the above devices include input devices such as keyboards, mice, and touch pads, output devices such as displays and speakers, CPUs (Central Processing Units), ROMs (Read Only Memory), and RAMs (Random). Access Memory), storage devices such as hard disk devices and SSDs (Solid State Drives), readers that read information from recording media such as DVD-ROMs (Digital Versatile Disk Read Only Memory) and USB (Universal Serial Bus) memories, and networks. It is equipped with a network card that communicates via a bus, and each part is connected by a bus.

Then, the reading device reads the program from the recording medium on which the program for realizing the function of each of the above devices is recorded, and stores the program in the storage device. Alternatively, the network card communicates with the server device connected to the network, and stores the program downloaded from the server device for realizing the function of each device in the storage device.

Then, the CPU copies the program stored in the storage device to the RAM, sequentially reads the instructions included in the program from the RAM, and executes the program, thereby realizing the functions of the respective devices.

The present disclosure can be applied to a notification control device, a notification device, a notification control method, a notification control program, and a vehicle information transmission device.

1 Notification system 2 In-vehicle device 3 Terminal device 21 Communication unit 22 Driving status detection unit 23 Own vehicle status detection unit 24 Driver status detection unit 25 Storage unit 26 Vehicle information transmission device 31 Communication unit 32 Display unit 33 Sound output unit 34 Vibration generation unit 35 Operation unit 36 Movement status detection unit 37 Map information storage unit 38 Storage unit 39 Notification control device 40 Notification unit 221 Vehicle current position detection unit 222 Travel speed detection unit 223 Travel direction detection unit 261 Travel status acquisition unit 262 Abnormality determination unit 263 Transmission Control unit 361 Terminal current position detection unit 362 Movement speed detection unit 363 Movement direction detection unit 391 Vehicle information acquisition unit 392 User information acquisition unit 393 Danger judgment unit 394 Notification control unit

Claims (12)

A notification control device that controls the notification unit of a notification device that can be carried by the user.
A vehicle information acquisition unit that acquires driving status information regarding the current position and traveling direction of the vehicle, which is periodically transmitted by at least one vehicle located around the user.
A user information acquisition unit that acquires user movement status information regarding the current position and movement direction of the user, and
It is determined based on the driving situation information and the user movement situation information whether or not the driving situation information includes danger information indicating that an abnormality has occurred in at least one of the vehicle and the driver of the vehicle. A notification control device including a notification control unit that notifies the notification unit of warning information indicating that there is a risk of collision between the vehicle and the user or that the vehicle is approaching based on the determined risk level. The notification control device according to claim 1, wherein the traveling situation information includes position information of the vehicle and information indicating a traveling direction of the vehicle. The notification control device according to claim 2, wherein the user movement status information includes position information of the notification device and information indicating a movement direction of the notification device. A risk determination unit for determining the degree of danger based on whether or not the danger information is included in the travel status information, the travel status information, and the user movement status information is further provided.
The notification control device according to claim 3, wherein the notification control unit notifies the notification unit of the warning information based on the degree of danger determined by the danger determination unit. The danger determination unit calculates the degree of danger as a larger value when the driving situation information includes the danger information than when the driving situation information does not include the danger information. The notification control device according to claim 4. The notification control device according to any one of claims 1 to 5, wherein the degree of danger indicates the degree of possibility of collision between the vehicle and the user. The notification control unit notifies the notification unit of the warning information when the risk level is equal to or higher than the first threshold value.
The notification control device according to any one of claims 3 to 6, wherein the warning information is not notified to the notification unit when the risk level is less than the first threshold value. When the traveling situation information includes the danger information, the notification control unit causes the notification unit to notify the warning information only when the danger level is equal to or higher than the second threshold value.
When the traveling situation information does not include the danger information, the warning information is notified to the notification unit only when the danger level is equal to or higher than a third threshold value larger than the second threshold value. Item 6. The notification control device according to any one of Items 3 to 6. Notification unit and
A notification device comprising the notification control device according to any one of claims 1 to 8. A notification control method in which a computer controls a notification unit of a notification device that can be carried by a user.
The computer
A vehicle information acquisition step for acquiring driving status information regarding the current position and traveling direction of the vehicle, which is periodically transmitted by at least one vehicle located around the user, and a vehicle information acquisition step.
A user information acquisition step for acquiring user movement status information regarding the current position and movement direction of the user, and
It is determined based on the driving situation information and the user movement situation information whether or not the driving situation information includes danger information indicating that an abnormality has occurred in at least one of the vehicle and the driver of the vehicle. A notification control method for executing a notification control step of notifying the notification unit of warning information indicating that there is a risk of collision between the vehicle and the user or the approach of the vehicle based on the determined risk level. .. A notification control program that allows a computer to control the notification unit of a notification device that can be carried by a user.
On the computer
A vehicle information acquisition step for acquiring driving status information regarding the current position and traveling direction of the vehicle, which is periodically transmitted by at least one vehicle located around the user, and a vehicle information acquisition step.
A user information acquisition step for acquiring user movement status information regarding the current position and movement direction of the user, and
It is determined based on the driving situation information and the user movement situation information whether or not the driving situation information includes danger information indicating that an abnormality has occurred in at least one of the vehicle and the driver of the vehicle. A notification control program that executes a notification control step of notifying the notification unit of warning information indicating that there is a risk of collision between the vehicle and the user or the approach of the vehicle based on the determined risk level. .. A driving status acquisition unit that acquires driving status detection information related to the detection results of the current position and driving direction of the vehicle,
An abnormality determination unit that determines whether or not an abnormality has occurred in at least one of the vehicle and the driver of the vehicle, and
It is provided with a transmission control unit that periodically transmits the traveling status information regarding the traveling status of the vehicle to the outside.
When the abnormality determination unit determines that the abnormality has occurred, the transmission control unit transmits the travel status information including the danger information indicating that the abnormality has occurred and the travel status detection information. Then, when it is determined that the abnormality has not occurred, the vehicle information transmitting device that transmits the traveling condition information that does not include the danger information and includes the traveling condition detection information.

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