CN-116324923-B - Communication system, server device, program, and communication method

Abstract

Provided are a communication system, a server device, a program, and a communication method, which can provide stable communication services to priority vehicles including emergency vehicles. The communication system of the embodiment is provided with a server device. The server device includes a control unit that instructs execution of priority control that prioritizes, when a priority vehicle passes through a location where a roadside apparatus is provided, first communication by the priority vehicle via the roadside apparatus over second communication by vehicles other than the priority vehicle via the roadside apparatus.

Inventors

• MOCHIZUKI TAKAHIRO
• SHIMOOSEKO AKITAKA
• MATSUMOTO TAKUZO
• RIKIHISA HIROAKI

Assignees

• 古河电气工业株式会社

Dates

Publication Date

20260512

Application Date

20220318

Priority Date

20210407

Claims (16)

1. 1. A communication system includes a server device, The server device includes a control unit that instructs a roadside apparatus to execute priority control that prioritizes first communication by the priority vehicle via the roadside apparatus over second communication by vehicles other than the priority vehicle via the roadside apparatus when the priority vehicle passes through a place where the roadside apparatus is provided, The roadside machine performs the priority control upon receiving an instruction to perform the priority control from the server device.
2. 2. The communication system of claim 1, wherein, When the priority vehicle passes through the location, the control unit instructs a network communication network capable of priority control between the server device and the roadside machine to execute the priority control, The network communication network performs the priority control upon receiving an instruction to perform the priority control from the server apparatus.
3. 3. The communication system of claim 2, wherein, The network communication network includes a PON access system configured to include an OLT and an ONU.
4. 4. The communication system of claim 2, wherein, The network communication network includes a WAN communication network and a PON access system, and the PON access system includes an OLT and an ONU.
5. 5. The communication system according to any one of claims 1 to 4, wherein, When the priority vehicle passes through the location, the roadside apparatus transmits information indicating that the priority vehicle is approaching to a surrounding area of the roadside apparatus.
6. 6. The communication system of claim 1, wherein, The control unit determines the roadside apparatus to be installed at the location where the priority vehicle passes through, based on a predetermined route along which the priority vehicle passes and an installation position of the roadside apparatus, and controls the determined roadside apparatus to perform the priority control.
7. 7. The communication system of claim 1, wherein, The control unit instructs execution of the priority control at a time before a first predetermined time from an estimated time when the priority vehicle passes through the location.
8. 8. The communication system of claim 1, wherein, The control unit instructs to end the priority control at a time after a second predetermined time from an estimated time when the priority vehicle passes through the location.
9. 9. The communication system according to claim 7 or 8, wherein, The control unit obtains the estimated time from a machine learning result using past travel data.
10. 10. The communication system of claim 1, wherein, The control unit instructs execution of the priority control when a distance between the priority vehicle and the roadside apparatus is equal to or less than a first predetermined distance.
11. 11. The communication system of claim 1, wherein, When the priority vehicle is a second predetermined distance or more from the roadside machine, the roadside machine instructs to end the priority control.
12. 12. The communication system of claim 1, wherein, The roadside machine controls a traffic signal in the event that the priority vehicle passes around the roadside machine.
13. 13. The communication system of claim 1, wherein, The roadside apparatus performs the priority control by setting a channel used in the first communication and a channel used in the second communication to be different channels and performing control so as to prioritize communication of the channel used in the first communication.
14. 14. A server device includes a control unit that instructs a roadside apparatus to execute priority control that prioritizes first communication by a priority vehicle via the roadside apparatus over second communication by a vehicle other than the priority vehicle via the roadside apparatus when the priority vehicle passes through a place where the roadside apparatus is provided, The roadside machine performs the priority control upon receiving an instruction to perform the priority control from the server device.
15. 15. A storage medium having a program recorded thereon, the program causing a processor provided in a server device to function as a control unit, When a priority vehicle passes through a place where a roadside apparatus is provided, the control unit instructs the roadside apparatus to execute priority control that prioritizes first communication by the priority vehicle via the roadside apparatus over second communication by a vehicle other than the priority vehicle via the roadside apparatus, The roadside machine performs the priority control upon receiving an instruction to perform the priority control from the server device.
16. 16. A communication method in which, when a priority vehicle passes around a roadside apparatus, a control unit of a server apparatus instructs the roadside apparatus to execute priority control that prioritizes first communication by the priority vehicle via the roadside apparatus over second communication by a vehicle other than the priority vehicle via the roadside apparatus, The roadside machine performs the priority control upon receiving an instruction to perform the priority control from the server device.

Description

Communication system, server device, program, and communication method Technical Field The invention relates to a communication system, a server apparatus, a program, and a communication method. Background There are V2I (vehicle-to-infrastructure) and V2X (vehicle-to-everything) communication in which vehicles communicate via a roadside machine or the like. Patent literature 1 discloses a technique for performing such communication in an emergency vehicle such as an ambulance. Prior art literature Patent literature Patent document 1 Japanese patent No. 6068785 Disclosure of Invention Problems to be solved by the invention Since a priority vehicle such as an emergency vehicle may transmit and receive information having high priority such as information having high urgency, it is necessary to stably transmit and receive information having high priority even if there is a factor such as congestion. In the conventional technology as shown in patent document 1, there is room for improvement in stabilizing the communication of the emergency vehicle. An object of an embodiment of the present invention is to provide a communication system, a server apparatus, a program, and a communication method capable of providing a stable communication service to a priority vehicle including an emergency vehicle. Means for solving the problems The communication system of the embodiment is provided with a server device. The server device includes a control unit that instructs execution of priority control that prioritizes, when a priority vehicle passes through a location where a roadside apparatus is provided, first communication by the priority vehicle via the roadside apparatus over second communication by vehicles other than the priority vehicle via the roadside apparatus. The control unit may instruct the roadside apparatus to execute the priority control when the priority vehicle passes through the location. The roadside apparatus may perform the priority control when receiving an instruction to perform the priority control from the server apparatus. When the priority vehicle passes through the location, the control unit may instruct the network communication network capable of priority control between the server device and the roadside apparatus to execute the priority control. The network communication network may perform the priority control when receiving an instruction to perform the priority control from the server apparatus. The network communication network may include a PON access system including an OLT and an ONU. The network communication network may include a WAN communication network and a PON access system, and the PON access system may include an OLT and an ONU. When the priority vehicle passes through the location, the roadside apparatus may transmit information indicating that the priority vehicle is approaching to a surrounding area of the roadside apparatus. The control unit may determine the roadside apparatus installed at the location where the priority vehicle passes, based on a predetermined route along which the priority vehicle passes and an installation position of the roadside apparatus, and control the determined roadside apparatus to perform the priority control. The control unit may instruct the priority control to be executed at a time point before a first predetermined time point from an estimated time point at which the priority vehicle passes through the location. The control unit may instruct the priority control to end at a time point after a second predetermined time from an estimated time point at which the priority vehicle passes through the location. The control unit may calculate the estimated time based on a machine learning result using past travel data. The control unit may instruct execution of the priority control when a distance between the priority vehicle and the roadside apparatus is equal to or less than a first predetermined distance. The roadside apparatus may instruct the priority control to end when the priority vehicle is spaced from the roadside apparatus by a second predetermined distance or more. The roadside apparatus may control a traffic signal when the priority vehicle passes around the roadside apparatus. The priority control may be performed by the roadside apparatus setting a channel used in the first communication and a channel used in the second communication to be different channels and performing control so as to prioritize communication of the channel used in the first communication. The server device of the embodiment includes a control unit. When a priority vehicle passes through a location where a roadside apparatus is provided, a control unit instructs execution of priority control that prioritizes first communication by the priority vehicle via the roadside apparatus over second communication by a vehicle other than the priority vehicle via the roadside apparatus. The program according to the embodiment causes a processor provided in a server devi