多路复用器模块在自检子系统中的应用研究

Application of Multi-Banked Multiplexer Module in Self-Test Subsystem

摘要:

自检子系统设计与开发是通用自动测试系统开发的重要内容之一；为实现自检子系统的自动化测试要求,开展了对多路复用器的研究工作,提出了一种以多路复用器为主、开关为辅的自检方案,设计了多路复用器与系统其它资源的电气连接线路,采用虚拟仪器技术设计开发了相应的控制函数；测试了多路复用器各通道上的电阻值、电压值及频率值,数据均符合系统设计要求；测试验证结果表明,多路复用器能够方便实现对通用自动测试系统其它关联资源的自动测试。

Abstract:

Self-test subsystem design and development is an important part of universal automatic test system development.To automate the testing requirements of the self-test subsystem, carried out research on the multiplexer, proposed a self-test methods based on multiplexer mainly to the switch for the second ,designed multiplexer wiring systems and electrical connections to other resources, designed and developed of a corresponding control function using virtual instrument technology, tested the value of resistance or voltage or frequency on each channel of multiplexer, all data are in line with the system design requirements.Testing and validation results show that the multiplexer can easily achieve automatic test of other related resources.