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System and method for testing dedicated short range communication (DSRC) equipment

A device testing, dedicated short-range technology, applied in the field of intelligent transportation, can solve the problems of unable to meet the test requirements, unable to demodulate and analyze DSRC data, unable to judge the parameter threshold value of the end of the test, etc., to improve the test accuracy and shorten the test Time, the effect of ensuring product quality

Active Publication Date: 2013-08-07
北京易路行技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing general radio testing equipment, such as oscilloscopes, signal sources, spectrum analyzers, multimeters, power meters, etc., cannot meet these specific test requirements, for example, it is impossible to judge the parameter threshold at the end of the test, and even though the signal source can realize Part of the automatic programming control, but cannot demodulate and analyze the returned DSRC data

Method used

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  • System and method for testing dedicated short range communication (DSRC) equipment
  • System and method for testing dedicated short range communication (DSRC) equipment
  • System and method for testing dedicated short range communication (DSRC) equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] Example 1: OBU wake-up sensitivity test

[0072] This embodiment tests the physical layer wake-up sensitivity index of the OBU. In this embodiment, the test computer simulates the RSU, performs DSRC communication with the OBU under test and detects its wake-up sensitivity. For device connections, see figure 1 , where both the baseband test signal and the RF test signal are generated by dedicated test equipment, the method is as follows:

[0073] Step 1. Test preparation: The test computer selects and configures the test parameters. The distance between the OBU under test and the microwave antenna is 3 meters (the specific value of the distance can be set according to actual needs, and the far-field condition must be met). At the same time, the OBU under test and the microwave antenna The direction of the phase center is the same;

[0074] Step 2, generate baseband test data: run the special test software for ETC radio frequency indicators in the test computer, and dr...

Embodiment 2

[0083] Embodiment 2: OBU protocol conformance test

[0084] This embodiment tests the protocol consistency of the data link layer and the application layer of the OBU. In this embodiment, the test computer simulates the RSU, carries out DSRC communication with the OBU under test and detects the conformity of its protocol data. For equipment connection, see figure 1 As shown, the baseband test signal is generated by a special test equipment, and the RF test signal is generated by a signal source. The method is as follows:

[0085]Step 1. Test preparation: The test computer selects and configures the test parameters. The distance between the OBU under test and the microwave antenna is 3 meters (the specific value of the distance can be set according to actual needs, and the far-field condition must be met). At the same time, the OBU under test and the microwave antenna The direction of the phase center is the same;

[0086] Step 2, generate baseband test data: run DSRC protoc...

Embodiment 3

[0092] Embodiment 3: RSU protocol conformance test

[0093] This embodiment tests the protocol consistency of the data link layer and the application layer of the RSU. In this embodiment, the test computer simulates the lane computer, sends control instructions to the RSU under test, and also simulates the OBU at the same time, carries out DSRC communication with the RSU under test and communicates with the RSU under test. Detect the compliance of its protocol data, see the connection diagram Figure 4 As shown, the baseband test signal is generated by a special test equipment, and the RF test signal is generated by a signal source. The specific method is as follows:

[0094] Step 1. Test preparation: The test computer selects and configures test parameters. The distance between the RSU under test and the microwave antenna is 3 meters (the specific value of the distance can be set according to actual needs, and the far-field condition must be met), and the RSU under test and...

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Abstract

The invention discloses a system and a method for testing dedicated short range communication (DSRC) equipment. The system comprises a testing computer, special testing equipment, a signal source and a microwave antenna, testing software is installed in the testing computer, the testing computer chooses test content and configure test parameters according to tested equipment and controls testing processes according to the test content and the text parameters, the special testing equipment generates DSRC test data under the control of the testing computer, receives response data returned by the tested equipment and sends the data after being analyzed to the testing computer, the signal source outputs the DSRC test data according to input data of the special testing equipment or programming instructions of the testing computer, the microwave antenna emits the DSRC test data provided by the special testing equipment or the signal source to the tested equipment, receives response returned by the tested equipment and provides the response to the special testing equipment, and the testing computer further determines test results according to the test data provided by the special testing equipment. By the system and the method, testing of protocol uniformity of a link layer and an application layer and key parameters and receiving performance indexes of a physical layer of the DSRC equipment can be realized, and product quality of the tested equipment can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a test system and method for dedicated short-range communication DSRC equipment. Background technique [0002] The Dedicated Short Range Communication (DSRC) protocol is one of the important basic communication protocols in the field of intelligent transportation systems, and is widely used in road electronic non-stop charging, vehicle traffic information services, traffic information collection and vehicle public safety services and other fields. In 2007, my country promulgated and implemented the GB / T20851 series of DSRC national standards, after which expressway ETC (Electronic Toll Collection, Electronic Toll Collection) technologies and products that meet this standard have been widely used. The automatic billing of the ETC system is realized through wireless communication between the lane antenna RSU (Road side Unit, also known as the road side unit) and...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B17/10H04B17/20
Inventor 李全发尤鑫张北海张明月张为民胡宾薛金银高文宝吴佳岳雅峰
Owner 北京易路行技术有限公司
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