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etc communication method and system

A communication method and a technology for establishing communication, which are applied in the field of ETC communication methods and systems, can solve problems such as inability to communicate with multiple vehicle-mounted units, and achieve the effect of reducing resource waste and time waste

Active Publication Date: 2021-08-27
AEROSPACE INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, one of the technical problems solved by the embodiments of the present invention is to provide an ETC communication method and system to overcome the defect in the prior art that one roadside unit cannot communicate with multiple on-board units of multiple vehicles, Achieve the effect of using one roadside unit to communicate with multiple on-board units of multiple vehicles

Method used

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  • etc communication method and system

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Experimental program
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Embodiment 1

[0035] figure 1 It is a flowchart of an ETC communication method according to an embodiment of the present invention. Such as figure 1 As shown, the ETC communication method provided in this embodiment includes:

[0036] S101. The RSU 30 broadcasts the beacon service table to the arbiter 31.

[0037] Specifically, ETC (Electronic Toll Collection, electronic toll collection system) includes a roadside unit 30 (Roadside Unit, RSU) installed at the toll booth and an on-board unit 32 (On Board Unit, OBU) installed on the vehicle. The ETC signal coverage area generally has a range of 10 to 30 meters, and multiple vehicles can enter the signal coverage area to complete the ETC payment. In order to realize the use of one roadside unit 30 to send multiple beacon service tables to the signal coverage area to multiple vehicle-mounted units 32 at the same time, this embodiment first broadcasts the beacon service table to the arbitrator 31 through the roadside unit 30, and then through...

Embodiment 2

[0048] This embodiment is a supplementary description of the above-mentioned embodiments. figure 2 It is a flowchart of an ETC communication method according to another embodiment of the present invention. Such as figure 2 As shown, the ETC communication method provided in this embodiment includes:

[0049] S201. The RSU 30 broadcasts the beacon service list to the arbiter 31.

[0050] Step S201 in this embodiment is implemented in the same manner as step S101 in Embodiment 1 above, and will not be repeated here.

[0051] S202. The arbiter 31 generates a preset number of beacon service tables according to the received beacon service table, and sends the preset number of beacon service tables to the signal according to preset rules. coverage area.

[0052] Step S202 in this embodiment is implemented in the same manner as step S102 in Embodiment 1 above, and will not be repeated here.

[0053] S203. The vehicle-mounted unit 32 in the signal coverage area responds to the b...

Embodiment 3

[0061] Figure 4 It is a schematic structural diagram of an ETC communication system according to yet another embodiment of the present invention. Such as Figure 4 As shown, the ETC communication system provided by this embodiment includes: a roadside unit 30, an arbiter 31, and a vehicle-mounted unit 32; the roadside unit 30 is used to broadcast a beacon service table to the arbiter 31; the arbiter 31 It is used to generate a preset number of beacon service tables according to the received beacon service table, and send the preset number of beacon service tables to the signal coverage area; the vehicle-mounted unit 32 uses When the vehicle-mounted unit 32 is in the signal coverage area, it responds to the beacon service list and sends the vehicle service list to the arbiter 31; the arbiter 31 is also used to press the received vehicle service list The preset rules are sent to the RSU 30 to establish a communication link.

[0062] Further, the arbiter 31 is used for the ar...

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Abstract

The invention provides an ETC communication method and system, belonging to the technical field of communication. In the ETC communication method and system provided by the present invention, the roadside unit broadcasts the beacon service table to the arbitrator; the arbitrator generates a preset number of beacon service tables according to the received beacon service table, and sends the preset number of beacon service tables The beacon service table is sent to the signal coverage area according to the preset rules; the on-board unit in the signal coverage area responds to the beacon service table and sends the vehicle service table to the arbitrator; the arbitrator sends the received vehicle service table to the roadside according to the preset rules unit sends to establish a communication link. The present invention simply and effectively realizes the multi-channel concurrency of the beacon service table broadcast by the roadside unit by setting an arbitrator to connect the communication between the roadside unit and the vehicle-mounted unit, thereby realizing the communication between one roadside unit and multiple vehicle-mounted units Communication, and then to a certain extent, reduces the waste of resources and time when multiple vehicles conduct ETC charges.

Description

technical field [0001] Embodiments of the present invention relate to the field of communication technologies, and in particular, to an ETC communication method and system. Background technique [0002] The ETC system uses a dedicated short-range wireless communication technology to complete the entire charging process, ensuring that the vehicle keeps driving without stopping during the entire charging process. Usually, a roadside unit (Roadside Unit, RSU) is installed at the toll point, and an on-board unit (On Board Unit, OBU) is installed on the vehicle for communication between the roadside unit and the on-board unit. [0003] The existing ETC communication method is that the roadside unit sends a Beacon Service Table (BST) to the vehicle-mounted unit, and the vehicle-mounted unit replies to the vehicle service table (Vehicle Service Table, VST) to the roadside unit to realize the communication between the roadside unit and the vehicle-mounted unit. Communication connec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/3822H04W4/06H04W76/40H04W76/10G07B15/06
CPCG07B15/06H04B1/3822H04W4/06
Inventor 邓海周悦刘颖
Owner AEROSPACE INFORMATION