数字电路板自动测试与故障诊断系统的设计与实现  

Design and Realization of Automatic Test and Fault Diagnosis System for Digital Circuits

作　　者：黄鑫[1] 常天庆[1] 邢士勇[1] 陈旦[1] 

机构地区：[1]装甲兵工程学院,北京100072

出　　处：《计算机测量与控制》2010年第7期1512-1514,共3页Computer Measurement &Control

摘　　要：为了实现对某型装备数字电路板的功能测试需要,给出了一种便携式自动测试与故障诊断系统的设计方案;该系统采用嵌入式主板作为系统的控制中心,内部总线采用串行数据总线——USB设计实现,为了减少接口测试适配器的数目,采用了固态继电器作为测试开关阵列,针对不同的被测对象通过施加不同的测试程序集(TPS)完成测试任务;本系统使用方便灵活,扩展性能良好,可靠性高。本系统可以对数字电路板的故障定位到元器件级别,不仅可以直接应用于现场维修工作,而且对电路板的生产检验工作同样适用。To meet the test needs of certain equipment digital circuits, it puts forwards a portable automatic test and fault diagnosis sys- tem. The system adopts an embedding board as its control center, and its inner bus adopts USB bus. For decreasing the number of test a- dapters, it uses a test matrix switch that is composed of solid state relay, so different units under test can be tested by using its test program sets. The system reliability is high, and has been used in the practice. It can isolate the faults of circuit into components. The system can not only be used to field test, but also production inspection.

关 键 词：自动测试系统 USB 矩阵开关 测试生成 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]