边界扫描技术在高速列车信号控制电路板测试与诊断中的应用  

Application of Testing and Diagnosis for Boundary-Scan Technology in High-Speed Train Signal Control Circuit Board

作　　者：陆云云 张方 武晓楠 

机构地区：[1]北京泛华恒兴科技有限公司,北京100192

出　　处：《测控技术》2015年第8期153-156,共4页Measurement & Control Technology

摘　　要：中国最近几年对高速铁路的投入和重视程度举世瞩目。列车作为高速铁路的运输载体,其质量尤为重要,控制系统中的信号控制板作为高速列车的"大脑",其可靠性直接决定了整车的安全性。由于大量采用BGA、QFP封装的FPGA、DSP芯片导致测试途径有限、测试覆盖率较低等缺点,提出了将边界扫描技术与PXI总线标准仪器相结合的方法,对信号控制板进行有效的测试,可显著提高测试覆盖率并实现元器件级的故障诊断,同时减少测试时间。In recent years,China invests high-speed railway with remarkable attention.Train acts is taken as the transport carrier,whose quality is particularly important,and the control system of train could directly determine the rehability of the whole train.Due to the use of chips with BGA,QFP packaged,the board in the control system lacks proper test method,and leads to low test coverage.Combining the boundary scan technology with PXI bus standard equipment to test the electronic board effectively,the test coverage can be improved significantly and fault diagnosis on component level is realized,while the test time is reduced.

关 键 词：边界扫描 IEEE 1149.1 测试与故障诊断 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]