基于虚拟仪器技术的地面电子单元自动测试系统研究  

Research on Automatic Test System of Lineside Electronic Unit Based on Virtual Instrument Technology

作　　者：王丁[1] 王财进[1] 徐宁[1] 王瑞[1] WANG Ding;WANG Cai-jin;XU Ning;WANG Rui(Signal ＆ Communication Research Institute,China Academy of Railway Sciences,Beijing 100080,China)

机构地区：[1]中国铁道科学研究院通信信号研究所,北京100081

出　　处：《铁道标准设计》2018年第8期159-162,共4页Railway Standard Design

摘　　要：针对目前我国应答器传输系统重要组成设备—地面电子单元(LEU)产品尚无整机检验标准的状况,采用NI虚拟仪器技术搭建LEU自动化测试系统。该系统可自动分离辨识混叠波形信号,完成对LEU输出信息的采集处理和分析判断,改变了之前为获取某一接口参数而必须人为屏蔽LEU其他接口输出的测试方法。集成度高,操作简便,测试判定标准整齐划一。此技术可应用于实验室设备标准化检测及工厂产品批量检测和产品质量检验。In view of the fact that there is no overall test standard for the Lineside Electronic Unit（ LEU）products of the Balise Transmission System in our country,the NI virtual instrument technology is used to build the LEU automatic test system. The system can automatically separate and identify the aliasing waveform signal,obtain and analyze LEU output information without shielding other interface outputs from LEU. The system creates a new method different from the traditional one to acquire parameters. The system is highly integrated and simple to operate,and testing criteria are unified. This technology can be used in laboratory equipment standardization inspection,factory manufacturing process monitoring and product quality inspection.

关 键 词：地面电子单元 LABVIEW 信号分析 DBPL解码 标准化检测 

分 类 号：U284.91[交通运输工程—交通信息工程及控制] TP216[交通运输工程—道路与铁道工程]