基于CPLD控制的故障注入器的设计与实现  

Design and implementation of fault injector based on CPLD

作　　者：张晓敏[1] 翟正军[1] 马捷中[1] 

机构地区：[1]西北工业大学计算机学院,陕西西安710072

出　　处：《计算机工程与设计》2009年第17期3921-3924,共4页Computer Engineering and Design

基　　金：国防"十一五"预研基金项目(B2720060300);陕西省自然科学基金项目(SJ08F20);航空科学基金项目(2008ZD53035)

摘　　要：利用故障注入方法对故障诊断系统进行检测是提高系统可靠性的重要途径。针对模拟信号的特点,设计开发了一个基于CPLD控制的故障注入器,详细阐述了该故障注入器的结构组成、功能模块以及软硬件的设计,并将此故障注入器用于故障诊断专家系统的有效性验证上,试验结果表明,此故障注入器在设计上具有通用性、有效性、无破坏性和易操作性等特点。Fault injection method is an available way to check the fault diagnosis system＇ reliability. Aimed at the character of the analog signals＇ fault injection, a fault injector based on CPLD is designed and developed. On the component structure of the fault injector, function modules and the design of hardware and software are elaborated, as well as the validation testing on the capability of the fault diagnosis system is done by using the fault injector. It proves that the fault injection system has the characteristics of universal, validity, non-destructive and easy operation by experiments.

关 键 词：故障注入器 模拟信号 故障诊断 故障模式 

分 类 号：TP206.3[自动化与计算机技术—检测技术与自动化装置]