WO2020066813A1

WO2020066813A1 - Base station, vehicle, prescribed terminal, and traffic communications system

Info

Publication number: WO2020066813A1
Application number: PCT/JP2019/036671
Authority: WO
Inventors: 博己藤田
Original assignee: 京セラ株式会社
Priority date: 2018-09-26
Filing date: 2019-09-19
Publication date: 2020-04-02
Also published as: JPWO2020066813A1; JP7217283B2

Abstract

A base station that controls a traffic safety device provided at an intersection at which a first road along which a first vehicle passes and a second road along which either a pedestrian having a prescribed terminal or a second vehicle passes. This base station comprises: a reception unit that receives a first message from the first vehicle and a second message from the prescribed terminal; and a control unit that controls the traffic safety device. The control unit: executes prescribed control that controls the traffic safety device such that the first vehicle passes through the intersection if the approach of the first vehicle is detected on the basis of the first message; and controls the traffic safety device such that the first vehicle does not pass through the intersection if, during the prescribed control, a determination is made on the basis of the second message that there is the possibility that a pedestrian or the second vehicle is at the intersection.

Description

Base station, vehicle, predetermined terminal and traffic communication system

The present invention relates to a base station, a vehicle, a predetermined terminal, and a traffic communication system.

Conventionally, in an advanced transportation system (for example, ITS; Intelligent Transport System), a technology for performing communication between a roadside device (base station) provided on a road and a vehicle has been proposed (for example, Patent Document 1).

By the way, in the above-mentioned intelligent transportation system, when there is an intersection where the first road and the second road intersect, a case where the first vehicle passes through the first road and the second vehicle passes through the second road. Is assumed.

In such cases, it is necessary to control traffic safety devices (traffic lights or gates) provided at intersections. For example, it is conceivable to control the traffic safety device so that the first vehicle can pass through the intersection. However, it is not preferable to perform such control when a foreign object exists on the intersection.

Therefore, the present invention has been made to solve the above-described problem, and provides a base station, a first vehicle, a predetermined terminal, and a traffic communication system that enable a first vehicle to appropriately pass an intersection. The purpose is to do.

The base station according to the first feature controls a traffic safety device provided at an intersection where a first road through which the first vehicle passes and a second road through which a pedestrian having a predetermined terminal or a second vehicle passes. The base station includes a receiving unit that receives a first message from the first vehicle and a second message from the predetermined terminal, and a control unit that controls the traffic safety device. The controller, when the proximity of the first vehicle is detected based on the first message, executes a predetermined control for controlling the traffic safety device so that the first vehicle passes an intersection, In the predetermined control, when it is determined that there is a possibility that the pedestrian or the second vehicle is present at the intersection based on the second message, the traffic safety is performed so that the first vehicle does not pass through the intersection. Control the device.

車両 The vehicle according to the second feature communicates with the base station according to the first feature.

所定 The predetermined terminal according to the third feature communicates with the base station according to the first feature.

A traffic communication system according to a fourth aspect, wherein a traffic safety device is provided at an intersection where a first road through which a first vehicle passes and a second road through which a pedestrian having a predetermined terminal or a second vehicle passes; A base station for controlling the traffic safety device. The base station includes a receiving unit that receives a first message from the first vehicle and a second message from the predetermined terminal, and a control unit that controls the traffic safety device. The control unit, when the proximity of the first vehicle is detected based on the first message, executes a predetermined control for controlling the traffic safety device so that the first vehicle passes an intersection, In the predetermined control, when it is determined that there is a possibility that the pedestrian or the second vehicle is present at the intersection based on the second message, the traffic safety is performed so that the first vehicle does not pass through the intersection. Control the device.

According to one aspect, it is possible to provide a base station, a first vehicle, a predetermined terminal, and a traffic communication system that enable the first vehicle to appropriately pass an intersection.

FIG. 1 is a diagram illustrating an example of a traffic communication system according to the embodiment. FIG. 2 is a diagram illustrating an example of the vehicle 10 according to the embodiment. FIG. 3 is a diagram illustrating an example of the predetermined terminal 200 according to the embodiment. FIG. 4 is a diagram illustrating an example of the roadside device 40 according to the embodiment. FIG. 5 is a diagram illustrating an example of the road-vehicle communication according to the embodiment. FIG. 6 is a diagram illustrating an example of the traffic communication method according to the embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

However, it should be noted that the drawings are schematic and ratios of dimensions may be different from actual ones. Therefore, specific dimensions and the like should be determined in consideration of the following description. Further, it is needless to say that the drawings may include portions having different dimensional relationships or ratios.

[Embodiment]
(Traffic communication system)
Hereinafter, an example of the traffic communication system according to the embodiment will be described. In the embodiment, a case where the road 110 and the road 120 intersect as illustrated in FIG. Here, it is assumed that the road 110 is a road of the vehicle 10 and the road 120 is a road of the vehicle 20A or the pedestrian 20B. Further, a case where the roadside device 40 is provided on the road 110 will be exemplified. The roadside device 40 may be provided on the roadside of the road 110, or may be provided on the road 110. The roadside device 40 is an example of a base station.

In the embodiment, at the intersection of the road 110 and the road 120, the gate 130 (the gate 131 and the gate 132) may be provided on the road 110, and the traffic light 140 (the traffic light 141 and the traffic light 142) is provided on the road 120. Is also good.

The vehicle 10 is an example of a first vehicle. The vehicle 10 may be an automobile such as a motorcycle, a motorcycle, or an automobile. The vehicle 10 may be a train. The vehicle 10 performs communication (road-vehicle communication) with the roadside device 40. Here, a case where the vehicle 10 is a bus is illustrated. FIG. 1 illustrates the vehicle 10 as a vehicle 10A, a vehicle 10B, and a vehicle 10C. The vehicle 10A is an example of a towing vehicle for towing one or more towed vehicles. The vehicle 10B and the vehicle 10C are examples of one or more towed vehicles towed by the towing vehicle. The towing method may be a physical towing method in which the vehicle 10 is connected by a cable or the like, or may be an electronic towing method in which the vehicle 10 is towed by radar or communication. In such traction, communication between vehicles 10 (inter-vehicle communication) may be performed in order to appropriately maintain traction. In the following, a train composed of two or more vehicles (for example, a towing vehicle and one or more towed vehicles) may be referred to as a connected train. The details of the vehicle 10 will be described later (see FIG. 2).

The vehicle 20A is an example of a second vehicle. The vehicle 20A may be an automobile such as a motorcycle, a motorcycle, or an automobile. Here, a case where the vehicle 20A is an automobile is illustrated. The vehicle 20A may communicate with the roadside device 40 (road-vehicle communication). The vehicle 20A performs communication (inter-vehicle communication) with another vehicle. Here, the vehicle 20A has a predetermined terminal 200A that communicates with the roadside device 40. The predetermined terminal 200A may be the vehicle 20A itself or an in-vehicle device (ECU; Electronic Control Unit, car navigation system) mounted on the vehicle 20A. The predetermined terminal 200A may be a terminal such as a smartphone possessed by the driver of the vehicle 20A.

Passer 20B may be a pedestrian or a bicycle driver. Passer 20B has predetermined terminal 200B. The predetermined terminal 200B may be a terminal such as a smartphone possessed by a passerby. Hereinafter, the predetermined terminal 200A and the predetermined terminal 200B may be referred to as a predetermined terminal 200.

The roadside device 40 communicates with the vehicle 10 (road-vehicle communication). The roadside device 40 may communicate with the predetermined terminal 200. The roadside device 40 may have a function of communicating with the gate 130. The roadside device 40 may have a function of communicating with the traffic light 140. The above-mentioned vehicle-to-vehicle communication may be performed at a timing when road-to-vehicle communication is not performed. Details of the roadside device 40 will be described later (see FIG. 3).

Road 110 is an example of a first road through which a first vehicle (vehicle 10) passes. Road 110 may be a motorway or a railroad track. The road 110 may be a dedicated road for the vehicle 10 in which the vehicle 20A and the pedestrian 20B are restricted from entering.

The road 120 is an example of a first road through which the second vehicle (the vehicle 20A) and the pedestrian 20B pass. Road 120 may be a motorway. The road 120 may be a road where the vehicle 10 is allowed to enter.

The gate 130 is an example of a traffic safety device provided on a road, and is provided on a traveling road (here, the road 110) through which a connected vehicle train passes. The gate 130 is a gate for restricting entry of the vehicle 20A and the pedestrian 20B to the road 110. Gate 130 is configured to close when vehicle 10 does not pass through an intersection and open when vehicle 10 passes through an intersection. For example, the gate 130 may open and close according to the operation schedule of the vehicle 10. The gate 130 may be opened when the vehicle 10 approaches the intersection, and may be closed when the vehicle 10 leaves the intersection. The approach and departure of the vehicle 10 may be detected by the roadside device 40 based on whether a message can be received from the vehicle 10 and then notified to the gate 130 from the roadside device 40.

The traffic light 140 is an example of a traffic safety device provided on a road, and is provided on an intersection (here, the road 120) that intersects with the traveling road through which the connected vehicle train passes. The traffic light 140 is configured to display a signal (for example, a green signal, a yellow signal, or a red signal) indicating whether to permit the vehicle 20A and the pedestrian 20B to pass through the intersection. The traffic light 140 may be configured to display a blinking signal that calls attention to the vehicle 20A and the pedestrian 20B. For example, the traffic light 140 may switch signals according to a predetermined schedule. The gate 130 may switch the signal according to the approach of the vehicle 10 to the intersection and the departure of the vehicle 10 from the intersection. The approach and departure of the vehicle 10 may be detected by the roadside device 40 based on whether a message can be received from the vehicle 10, and then the traffic light 140 may be notified from the roadside device 40.

(First vehicle)
Hereinafter, an example of the first vehicle according to the embodiment will be described. Here, the vehicle 10 is illustrated as the first vehicle. As shown in FIG. 2, the vehicle 10 includes a communication unit 11 and a control unit 12.

The communication unit 11 is configured by a wireless communication module. The communication unit 11 may have a function of performing a carrier sense to determine an empty state of a radio wave frequency (for example, a 700 MHz band). The communication unit 11 transmits the packet at a timing when the frequency of the radio wave is vacant. One message may be composed of one or more packets.

The communication unit 11 may perform road-to-vehicle communication or vehicle-to-vehicle communication. The packet includes identification information used to identify the transmission source, synchronization information indicating a synchronization method for the roadside device 40, transmission time of the packet, and / or period information indicating the period of road-vehicle communication (the number of times of transfer between road-vehicle communication and / or Or period length of road-to-vehicle communication). The vehicle-to-vehicle communication may include communication (packet transfer) that occurs with road-to-vehicle communication and / or communication for appropriately maintaining traction (such as communication for maintaining a vehicle-to-vehicle distance).

Hereinafter, the details of the first message transmitted by the vehicle 10 will be described based on the above-described message.

The communication unit 11 may transmit a first message including an information element indicating at least one of the position of the vehicle 10 and the speed of the vehicle 10 at a predetermined cycle. The position of the vehicle 10 may be a latitude and a longitude measured by a GPS (Global Positioning System) provided in the vehicle 10. The speed of the vehicle 10 may be a speed (e.g., km / h) measured by a speedometer provided on the vehicle 10.

The communication unit 11 specifies that the vehicle 10 is the leading vehicle when the vehicle 10 is the leading vehicle (sometimes referred to as a first vehicle) in a connected train composed of two or more vehicles. A first message including a first information element for performing the first message may be transmitted. When the vehicle 10 is a rear-located vehicle (sometimes referred to as a second vehicle) in the connected train, the communication unit 11 transmits a second information element for specifying that the vehicle 10 is a rear-mounted vehicle. A first message may be transmitted.

First, the first information element may include an information element for identifying that the own vehicle 10 is the leading vehicle. The second information element may include an information element for identifying that the own vehicle 10 is a rear vehicle. These information elements may include a 2-bit flag indicating a leading vehicle, a trailing vehicle, and other vehicles.

Secondly, the first information element may include an information element indicating the position of the leading vehicle. The second information element may include an information element indicating the position of the tail vehicle. The information element indicating the position may include an information element indicating the order of the vehicle 10 of the own vehicle 10. In such a case, it is preferable that the first information element and the second information element include an information element indicating the number of vehicles forming the connected train. For example, the first information element and the second information element may be represented by ○ / xx. XX is an information element indicating the order of the vehicle 10 of the own vehicle, and XX is an information element indicating the number of vehicles forming the connected train. Alternatively, the information element indicating the position may include an information element indicating the latitude and longitude of the own vehicle 10. Even in such a case, the roadside device 40 can specify the vehicle 10 that forms the connected train based on the information elements indicating the latitude and longitude of the vehicle 10, and the vehicle 10 is the leading vehicle. It can be determined whether the vehicle is a rear vehicle.

The communication unit 11 may transmit a first message including an information element indicating whether or not one or more towed vehicles are being towed by the towing vehicle. For example, the information element may be a 1-bit flag indicating presence / absence of towing.

The communication unit 11 may transmit a first message including an information element indicating whether or not one or more towed vehicles are towed when the vehicle 10 is a towed vehicle. For example, the information element may be a 1-bit flag indicating whether the vehicle 10 is a towing vehicle. Such an information element may be used as the first information element described above. Alternatively, when the vehicle 10 is a towed vehicle, the communication unit 11 may transmit a first message including an information element indicating whether or not the vehicle 10 is being towed by the towed vehicle. For example, the information element may be a 1-bit flag indicating whether the vehicle 10 is a towed vehicle. Alternatively, the information element may be a one-bit flag indicating whether the vehicle 10 is a towed vehicle or a towed vehicle.

When one or more towed vehicles are being towed by the towing vehicle, the communication unit 11 may transmit a first message including an information element indicating a length of a train including the towing vehicle and the towed vehicle. . The length of the train may be represented by an index that is predetermined according to the number of vehicles 10 that constitute the train, the physical length of the train, and / or the length of the train.

The communication unit 11 may transmit a first message including an information element indicating a towing method when one or more towed vehicles are being towed by the towing vehicle. As described above, the towing method may be a towing method in which the vehicle 10 is physically connected and / or a towing method in which the vehicle 10 is electronically connected.

The control unit 12 is configured by a control circuit having a memory, a CPU (Central Processing Unit), and the like. The control unit 12 controls at least the communication unit 11. For example, when one or more towed vehicles are being towed by the towing vehicle, the control unit 12 controls the communication unit 11 to transmit the first message including the information element described above.

In an embodiment, the first message may be transmitted by broadcast. In such a case, the first message may include an information element specifying the other party, and may not include an information element specifying the other party.

(Predetermined terminal)
Hereinafter, an example of the predetermined terminal according to the embodiment will be described. Here, the predetermined terminal 200A of the vehicle 20A is exemplified as the predetermined terminal. However, the predetermined terminal 200B of the passer-by 20B has the same configuration as the predetermined terminal 200A. Here, the description will be continued with notation of the predetermined terminal 200. As shown in FIG. 3, the predetermined terminal 200 includes a communication unit 210 and a control unit 220.

The communication unit 210 is configured by a wireless communication module. The communication unit 210 may have a function of performing a carrier sense to determine an empty state of a radio wave frequency (for example, a 700 MHz band). The communication unit 210 transmits the packet at a timing when the frequency of the radio wave is vacant. One message may be composed of one or more packets.

The communication unit 210 may perform road-to-vehicle communication or vehicle-to-vehicle communication. The packet includes identification information used to identify the transmission source, synchronization information indicating a synchronization method for the roadside device 40, transmission time of the packet, and / or period information indicating the period of road-vehicle communication (the number of times of transfer between road-vehicle communication and / or Or period length of road-to-vehicle communication). The vehicle-to-vehicle communication may include communication (packet transfer) that occurs with road-to-vehicle communication and / or communication for appropriately maintaining traction (such as communication for maintaining a vehicle-to-vehicle distance).

Hereinafter, the details of the second message transmitted by predetermined terminal 200 will be described based on the above-described message.

The communication unit 210 may transmit, at a predetermined cycle, a second message including an information element indicating at least one of the position of the predetermined terminal 200 and the speed of the predetermined terminal 200. The position of the predetermined terminal 200 may be a latitude and a longitude measured by a GPS (Global Positioning System) provided in the predetermined terminal 200 (or the vehicle 20A). The speed of the predetermined terminal 200 may be a speed (for example, km / h) measured by a speedometer provided in the predetermined terminal 200 (or the vehicle 20A).

The control unit 220 is configured by a control circuit having a memory, a CPU, and the like. The control unit 220 controls at least the communication unit 210.

In an embodiment, the second message may be transmitted by broadcast. In such a case, the second message may include an information element specifying the other party, and may not include an information element specifying the other party.

(Roadside aircraft)
Hereinafter, an example of the roadside device according to the embodiment will be described. As shown in FIG. 4, the roadside device 40 includes a communication unit 41 and a control unit 42.

The wireless communication system of the roadside device 40 may be based on ARIB @ T109, may be based on V2X (Vehicle to Everything) defined by 3GPP (3rd Generation Partnership Project), or may be based on a system such as wireless LAN. Is also good. The roadside device 40 may be an all-in type that can support all of these communication standards.

The communication unit 41 is configured by a wireless communication module. The communication unit 41 may not have a function of performing carrier sensing to determine an empty state of a radio wave frequency (for example, a 700 MHz band). The communication unit 41 transmits the packet at the timing determined by the control unit 42. One message may be composed of one or more packets.

The communication unit 41 may perform road-to-vehicle communication. The packet includes identification information used to identify the transmission source, synchronization information indicating a synchronization method for the roadside device 40, transmission time of the packet, and / or period information indicating the period of road-vehicle communication (the number of times of transfer between road-vehicle communication and / or Or period length of road-to-vehicle communication).

The communication unit 41 receives the first message from the vehicle 10. As described above, the first message may include an information element indicating at least one of the position of the vehicle 10 and the speed of the vehicle 10. The first message may include an information element indicating whether or not the vehicle 10 forms a connected train. Such an information element may be an information element indicating whether or not one or more towed vehicles are being towed by the towing vehicle.

The communication unit 41 receives the second message from the predetermined terminal 200. As described above, the second message may include an information element indicating at least one of the position of the predetermined terminal 200 and the speed of the predetermined terminal 200.

The control unit 42 is configured by a control circuit having a memory, a CPU, and the like. The control unit 42 controls at least the communication unit 41. The control unit 42 controls the traffic safety device by transmitting a message for controlling the traffic safety device provided on the road to the traffic safety device.

Here, when the approach of the vehicle 10 is detected based on the first message, the control unit 42 executes a predetermined control for controlling the traffic safety device so that the vehicle 10 passes through the intersection.

For example, the fact that being able to receive the first message from the vehicle 10 means that the roadside device 40 is present at least within the communication range of the vehicle 10. May be detected.

The control unit 42 may specify the speed of the vehicle 10 based on the first message. When the first message includes an information element indicating the position of the vehicle 10, the control unit 42 can specify the speed of the vehicle 10 by receiving the first message two or more times. The speed of the vehicle 10 can be specified based on the reception cycle (predetermined cycle) of the first message and the amount of movement of the position of the vehicle 10. When the first message includes an information element indicating the speed of the vehicle 10, the control unit 42 can specify the speed of the vehicle 10 by receiving the first message once.

The control unit 42 may estimate a timing at which the vehicle 10 enters an intersection (hereinafter, an entry timing) based on at least the speed of the vehicle 10. The control unit 42 may transmit a message instructing to open the gate 130 to the gate 130 based on the approach timing of the vehicle 10, and may display a stop signal of the vehicle 20A and the pedestrian 20B on the traffic light 140. The request message may be sent to the traffic light 140.

The control unit 42 may estimate a timing at which the vehicle 10 leaves the intersection (hereinafter, a departure timing) based on at least the speed of the vehicle 10. The control unit 42 may transmit a message instructing to close the gate 130 to the gate 130 based on the departure timing of the vehicle 10, and display a traveling signal of the vehicle 20A and the pedestrian 20B on the traffic light 140. The request message may be sent to the traffic light 140.

Under such a premise, the control unit 42 determines that the vehicle 10 passes through the intersection when it is determined that the vehicle 20A or the pedestrian 20B may be present at the intersection based on the second message in the predetermined control. Control traffic safety devices not to. Specifically, control unit 42 transmits a message instructing not to open gate 130 to gate 130.

As described above, according to the predetermined control, the stop signals of the vehicle 20A and the pedestrian 20B are displayed on the traffic light 140 at the timing when the vehicle 10 passes through the intersection. Therefore, as a case where the vehicle 20A or the pedestrian 20B may be present at the intersection, a case where the vehicle 20A and the pedestrian 20B have a trouble at the intersection may be considered.

The control unit 42 may specify the speed of the predetermined terminal 200 (that is, the vehicle 20A and the pedestrian 20B) based on the second message. When the second message includes an information element indicating the position of the predetermined terminal 200, the control unit 42 can specify the speed of the predetermined terminal 200 by receiving the second message two or more times. The speed of the predetermined terminal 200 can be specified based on the reception period (predetermined period) of the second message and the amount of movement of the position of the predetermined terminal 200. When the second message includes an information element indicating the speed of the predetermined terminal 200, the control unit 42 can specify the speed of the predetermined terminal 200 by receiving the second message once.

In such a case, the control unit 42 may determine whether the vehicle 20A and the pedestrian 20B are stopped at the intersection based on the speed of the vehicle 20A and the pedestrian 20B. The control unit 42 may determine whether the vehicle 20A and the pedestrian 20B may stop at the intersection at the timing when the vehicle 10 passes through the intersection.

(Transportation method)
Hereinafter, an example of the traffic communication method according to the embodiment will be described.

車両 As shown in FIG. 6, in step S11, the vehicle 10 transmits a first message at a predetermined cycle. The first message may include an information element indicating at least one of the position of the vehicle 10 and the speed of the vehicle 10.

In step S12, the predetermined terminal 200 transmits the second message at a predetermined cycle. The second message may include an information element indicating at least one of the position of the predetermined terminal 200 and the speed of the predetermined terminal 200.

In step S13, the roadside device 40 detects the proximity of the vehicle 10 in response to receiving the first message. The roadside device 40 determines whether there is a possibility that the vehicle 20A or the pedestrian 20B exists at the intersection based on the second message.

In Step S14, since the proximity of the vehicle 10 has been detected, the roadside device 40 executes predetermined control for controlling the traffic safety device so that the vehicle 10 passes through the intersection. In such a predetermined control, when it is determined that the vehicle 20A or the pedestrian 20B may be present at the intersection, the roadside device 40 controls the traffic safety device so that the vehicle 10 does not pass through the intersection.

(Action and effect)
In the embodiment, the vehicle 20A or the pedestrian 20B exists at the intersection under the premise that the roadside device 40 executes a predetermined control for controlling the traffic safety device so that the vehicle 10 passes through the intersection in accordance with the proximity of the vehicle 10. If it is determined that there is a possibility that the vehicle 10 will run, the traffic safety device is controlled so that the vehicle 10 passes the intersection. Therefore, even in the case where the vehicle 20A or the pedestrian 20B has a trouble at the intersection, the safety of the vehicle 20A or the pedestrian 20B can be ensured.

[Other Embodiments]
Although the present disclosure has been described by the above-described embodiments, it should not be understood that the description and drawings forming part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operation techniques will be apparent to those skilled in the art.

In the embodiment, the case has been described in which the vehicle 10 forms a connected vehicle train. However, embodiments are not limited to this. The vehicle 10 does not need to form a connected train.

In the embodiment, the case where the roadside device 40 is provided at a position adjacent to the traffic safety device has been described. However, embodiments are not limited to this. The roadside device 40 may be provided at a position away from the traffic safety device. In such a case, it is preferable that the roadside device 40 knows the geographical position of the traffic safety device.

In the embodiment, the case where the traffic safety device is the gate 130 or the traffic light 140 has been described. However, embodiments are not limited to this. The traffic safety device may be a device that transmits to the vehicle a signal that instructs whether or not the vehicle can pass (in other words, a signal that instructs the vehicle to travel or stop). The transmission destination of the signal may be the vehicle 10 or the predetermined terminal 200.

In the embodiment, the case where the roadside device 40 is separate from the traffic safety device has been described. However, embodiments are not limited to this. The roadside device 40 may be integral with the traffic safety device. In such a case, the roadside device 40 may transmit a signal to the vehicle indicating whether or not the vehicle can pass. The transmission destination of the signal may be the vehicle 10 or the predetermined terminal 200.

Although not particularly described in the embodiment, the roadside device 40 may communicate with another roadside device (inter-road communication).

In the embodiment, the vehicle 10, the predetermined terminal 200, and the roadside device 40 have been mainly described, but the embodiment is not limited thereto. A communication device provided in at least one of the vehicle 10, the predetermined terminal 200, and the roadside device 40 may be provided. The communication device has the function of the communication unit 11, the function of the communication unit 210, or the function of the communication unit 41.

Here, the vehicle of the present embodiment is a legal vehicle related to traffic in each country (for example, an automobile, a motorbike, a light vehicle, a trolley bus, and a tram if it is a "vehicle or the like" in the Japanese Road Traffic Act). Including, but not limited to. The vehicle may be a self-propelled vehicle, for example, a self-propelled industrial machine (so-called industrial vehicle), a self-propelled agricultural machine (so-called agricultural vehicle), or a self-propelled construction machine. (So-called construction vehicles). Further, if not inconsistent with the description of the above-described embodiment, the self-propelled means of the vehicle does not need to be wheels, and a flying car called a so-called aeromobile may be included in the vehicle.

道路 In addition to the above description, the roads according to the present embodiment include, but are not limited to, roads based on traffic laws (for example, the Road Traffic Law in Japan). The road according to the present embodiment may be a road through which vehicles pass.

This application claims the priority of Japanese Patent Application No. 2018-180221 (filed on Sep. 26, 2018), the entire contents of which are incorporated herein.

Claims

A base station for controlling a traffic safety device provided at an intersection where a first road through which a first vehicle passes and a second person through which a pedestrian having a predetermined terminal or a second vehicle passes,
A receiving unit that receives a first message from the first vehicle and receives a second message from the predetermined terminal;
A control unit for controlling the traffic safety device,
The control unit includes:
When the proximity of the first vehicle is detected based on the first message, executing a predetermined control for controlling the traffic safety device so that the first vehicle passes through the intersection,
In the predetermined control, when it is determined that there is a possibility that the pedestrian or the second vehicle is present at the intersection based on the second message, the first vehicle does not pass through the intersection. A base station that controls traffic safety devices.
As the traffic safety device, a gate is provided on the first road,
The base station according to claim 1, wherein the control unit controls the gate in the predetermined control.
The first message includes an information element indicating at least one of a position of the first vehicle and a speed of the first vehicle,
The base station according to claim 1, wherein the control unit performs the predetermined control based on a speed of the first vehicle specified by the information element.
The second message includes an information element indicating at least one of a position of the predetermined terminal and a speed of the predetermined terminal,
4. The base station according to claim 1, wherein the control unit executes the predetermined control based on a speed of the predetermined terminal specified by the information element. 5.
As the traffic safety device, a traffic light is provided on the second road,
The base station according to any one of claims 1 to 4, wherein the control unit causes the traffic light to display a stop signal in the predetermined control.
A vehicle that communicates with the base station according to any one of claims 1 to 5.
A predetermined terminal that communicates with the base station according to any one of claims 1 to 5.
A traffic safety device provided at an intersection where a first road through which the first vehicle passes and a passerby having a predetermined terminal or a second road through which the second vehicle passes;
A base station that controls the traffic safety device,
The base station comprises:
A receiving unit that receives a first message from the first vehicle and receives a second message from the predetermined terminal;
A control unit for controlling the traffic safety device,
The control unit includes:
When the proximity of the first vehicle is detected based on the first message, executing a predetermined control for controlling the traffic safety device so that the first vehicle passes through the intersection,
In the predetermined control, when it is determined that there is a possibility that the pedestrian or the second vehicle is present at the intersection based on the second message, the first vehicle does not pass through the intersection. A traffic communication system that controls traffic safety devices.