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ETC system roadside unit based on WLAN and charging method

A roadside unit and vehicle-mounted unit technology applied in the field of intelligent transportation to achieve excellent performance indicators, save manpower and material resources, and achieve high efficiency

Active Publication Date: 2008-02-13
BEIJING WATCH DATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no precedent for using WLAN technology in the existing ETC system roadside unit for wireless communication with the vehicle unit

Method used

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  • ETC system roadside unit based on WLAN and charging method
  • ETC system roadside unit based on WLAN and charging method
  • ETC system roadside unit based on WLAN and charging method

Examples

Experimental program
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Effect test

Embodiment Construction

[0066] The role of the roadside unit (RSU) is to establish a wireless local area network, and to send and receive relevant data information, so that it establishes a communication connection with the on-board unit (OBU) that enters the wireless local area network, and then completes the entire charging transaction process. Specifically, first, the roadside unit (RSU) is always in working state, and the wireless access point (AP) at the front of the roadside unit continuously listens to whether there is an inquiry frame sent by the vehicle-mounted unit in the wireless local area network. Once the AP detects and receives When the inquiry frame is sent from the on-board unit, the control response frame is immediately sent to successfully establish a communication connection with the on-board unit; secondly, after the communication connection is successfully established, the AP receives the user's vehicle data information sent by the on-board unit through its front-end directional ant...

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Abstract

The invention discloses a WLAN-based ETC system roadside unit and charging method, which solves the problem that the existing roadside unit does not have the function of processing user and vehicle data information in the ETC system, resulting in high cost of the ETC system. It includes a wireless access point, which is used to establish a communication connection with the vehicle-mounted unit, and receives vehicle and user data transmitted by the vehicle-mounted unit; a wireless network card, which is used to process vehicle and user data received by the wireless access point, and a data processing unit , used to verify the vehicle and user data, and perform corresponding processing. The roadside unit of the present invention has the advantages of supporting high-speed mobility of mobile terminals, supporting more user multiple access communications, supporting longer-distance communications, high efficiency, and a high success rate of communication transactions. At the same time, the data processing unit of the present invention realizes existing charging The verification processing function of the settlement center can correspondingly reduce the investment in the toll settlement center and save a lot of manpower and material resources.

Description

Technical field: [0001] The invention relates to a roadside unit (RSU) used in an electronic non-stop toll collection system (ETC) for expressways or urban roads, and more particularly to a roadside unit (RSU) for an electronic non-stop toll collection system based on wireless local area network (WLAN) technology. Unit, but also involves the method of realizing the roadside unit. The present invention belongs to the technical field of intelligent transportation (ITS for short). Background technique: [0002] With the rapid development of my country's economy, the contradiction between the ever-increasing car ownership and the limited road area has become increasingly prominent. In order to solve this contradiction, in addition to vigorously building roads, improving the utilization efficiency of existing roads is also an important part. In this context, intelligent transportation systems have increasingly become a hot spot for research and development in the world today. [0003]...

Claims

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Application Information

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IPC IPC(8): G07B15/00H04Q7/22H04L12/28G07B15/06
Inventor 贾琳李勇
Owner BEIJING WATCH DATA SYST
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