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Data Transmission System in Electronic Non-parking Toll Collection System

A data transmission system, electronic non-stop technology, applied in the field of communication, can solve problems such as the difficulty of cable laying, high cost of data storage and maintenance, and complicated erection of DSRC roadside units, so as to achieve easy application and reduce the complexity of layout and installation degree of effect

Active Publication Date: 2016-08-17
AEROSPACE INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 The DSRC roadside unit shown in the ETC lane can complete the ETC service well with the vehicle-mounted electronic tag. However, when the DSRC roadside unit is applied in an urban environment, it will cause greater construction difficulty due to the laying of cables. The DSRC roadside unit The biggest obstacle to the deployment and installation of DSRC roadside units is the complex erection, high data storage and maintenance costs, which are not conducive to the application of DSRC roadside units in urban environments

Method used

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  • Data Transmission System in Electronic Non-parking Toll Collection System
  • Data Transmission System in Electronic Non-parking Toll Collection System
  • Data Transmission System in Electronic Non-parking Toll Collection System

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Embodiment 1

[0026] In order to facilitate the deployment of DSRC roadside units, reduce the hardware investment required for database and communication transmission, and improve the security level of the ETC system, the embodiment of the present invention enables the roadside units to have two communication protocols: DSRC protocol and WLAN protocol compatible with IEEE802.11 function adopted. The schematic structural diagram of the roadside unit of the ETC system proposed in this embodiment is as follows figure 2 As shown, it includes: a DSRC communication unit 21 , a WLAN communication unit 22 , a data processing unit 23 and a power supply unit 24 .

[0027] The DSRC communication unit 21 is used to communicate with the vehicle-mounted electronic tag on the vehicle through the DSRC protocol, receive the vehicle data in the ETC transaction process encapsulated by the DSRC protocol sent by the vehicle-mounted electronic tag through the DSRC protocol channel, and send information to the v...

Embodiment 2

[0033] Based on the above figure 2 The shown roadside unit, the schematic structural diagram of a data transmission system in the ETC system provided by this embodiment is as follows image 3 As shown, this embodiment is applied in the scenario where the vehicle data in the ETC transaction process is not encrypted, including: a roadside unit, a WLAN gateway and a remote server.

[0034] The roadside unit is used to communicate with the on-board electronic tag on the vehicle through the DSRC protocol, and communicate with the WLAN gateway through the WLAN protocol. Receive the vehicle data in the ETC transaction process encapsulated according to the DSRC protocol sent by the vehicle electronic tag through the DSRC protocol channel, and analyze the vehicle data. When the above vehicle data is not encrypted, ETC transaction processing is performed on the vehicle data to obtain transaction result data, the transaction result data is encapsulated according to the DSRC protocol, and...

Embodiment 3

[0038] Based on the above figure 2 The shown roadside unit, the schematic structural diagram of a data transmission system in the ETC system provided by this embodiment is as follows Figure 4 As shown, this embodiment is applied in the scenario where the vehicle data in the ETC transaction process is not encrypted, including: roadside unit and PC.

[0039] The roadside unit is used to communicate with the on-board electronic tag on the vehicle through the DSRC protocol, and communicate with the PC through the WLAN protocol. Receive the vehicle data in the ETC transaction process encapsulated according to the DSRC protocol sent by the vehicle electronic tag through the DSRC protocol channel, and after analyzing the vehicle data, when the vehicle data is not encrypted, perform ETC transaction processing on the vehicle data , obtain the transaction result data, encapsulate the transaction result data according to the DSRC protocol, and send the encapsulated transaction result ...

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Abstract

The invention provides a road side unit and a data transmission system in an ETC (Electronic Toll Collection) system. The road side unit mainly comprises a DSRC communication unit, a data processing unit and a WLAN communication unit. The WLAN communication unit is used for carrying out communication with a WLAN gateway or a PC through a WLAN protocol, transaction result data sent by a data processing unit are encapsulated according to the WLAN protocol, and the encapsulated transaction result data are sent to the WLAN gateway or the PC through a WLAN protocol channel. According to the embodiment of the road side unit and the data transmission system in the ETC system, the road side unit is made to have the communication functions of a DSRC protocol and the WLAN protocol, the actual size of the road side unit is changed into small-size communication equipment which can be concentrated in the size range of one meter from large-scale communication equipment which is distributed at two ends of 50-meter communication wires and cables, layout and mounting complexity of the road side unit is lowered greatly, and therefore the road side unit is easy to be applied in urban environments.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a roadside unit and a data transmission system in an ETC (Electronic Toll Collection, electronic toll collection system). Background technique [0002] ETC based on GB / T20851-2007 series standards is being widely promoted in China. At present, more than 2,500 ETC lanes have been built nationwide, and more than 3 million sets of vehicle electronic tags have been issued. The on-board electronic tag is a standard accessory of the ETC system. It is used to install on the front windshield of the vehicle. When the vehicle passes the ETC lane, the on-board electronic tag communicates with the RSU (Roadside Unit, Roadside Unit) and other equipment installed on the ETC lane. , Vehicle charging can be completed without parking. The ETC system has improved the traffic efficiency. Actual statistical results show that the traffic efficiency of one ETC lane is equivalent to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07B15/06
Inventor 徐勇王波
Owner AEROSPACE INFORMATION