Road side station testing method and device for non-parking charging system

A parking fee and testing device technology, applied in the direction of instruments, ticketing equipment, etc., can solve the problem that RSU cannot monitor and test in real time, and achieve the effects of simplifying the difficulty of testing, accurate measurement, and improving the pass rate

Inactive Publication Date: 2012-07-18
上海搜林信息技术有限公司
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Problems solved by technology

[0008] The purpose of the present invention is to consider the problem that the existing national standard RSU does not have a suitable test device, which will easily cause the RSU to be unable to monitor and test in real time, and to achieve measurement fairness, and to provide a wireless and efficient test equipment for domestic RSU, which can be used for RSU equipment performance It can also be used for long-term real-time online monitoring of the working status of RSU

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  • Road side station testing method and device for non-parking charging system
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  • Road side station testing method and device for non-parking charging system

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with accompanying drawing and embodiment:

[0020] The solution of the invention is all based on the transmission and reception of radio frequency signals. There is no need to remove the installed equipment or add connecting wires to test.

[0021] The DSRC signal used for ETC defined by the national standard uses ASK (amplitude shift keying) modulation, and its main parameters are signal strength, frequency offset, modulation degree and signal occupied bandwidth. The invention can test the transmitting and receiving performance of the RSU on-line and in real time. For the test of the RSU transmission performance, the present invention will receive the transmission signal of the RSU in a wireless manner, and analyze and calculate its main parameters. As for the test of the receiving performance of the RSU, the present invention judges its performance by transmitting signals conforming to th...

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Abstract

The invention relates to a road side station testing device for a non-parking charging system, which comprises a parameter scanning and emitting circuit, a signal receiving circuit and a digital signal processing unit, wherein the parameter scanning and emitting circuit is used for sending a parameter to test a road side station; the signal receiving circuit is used for receiving a road side station emission signal; the digital signal processing unit is used for judging and processing the received road side station emission signal and generating a testing signal. The device simplifies the testing difficulty of the road side station, realizes fair, impartial and accurate measurement of a third party, and leads the measurement of road side station performance and real-time online monitoring of road side station performance through radio signals to be possible.

Description

technical field [0001] The invention relates to a test technology of wireless communication equipment, in particular to a test method and device for a roadside station of a non-stop charging system using wireless communication technology. Background technique [0002] Since the national standard ETC (Electronic Toll Collection, non-stop toll collection system) system was formed in 2007, major coastal provinces and cities in my country such as Beijing and Shanghai have begun to install non-stop toll collection systems. Recent practice shows that due to the inconsistency of OBU (On board Unit, vehicle-mounted station) and RSU (Road Side Unit, roadside station) equipment, the performance of the entire ETC system is difficult to reach the level of foreign countries, and the success rate of equipment is often 97% Hovering around -98%. After a lot of work, the consistency of OBU has also been greatly improved, mainly due to the introduction of a large number of radio frequency si...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07B15/06
Inventor 林敬东
Owner 上海搜林信息技术有限公司
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