摘要
文章详细分析了机内测试(BIT,Built-in test)系统的测试性指标验证和评价的重要性与实用性,并着重介绍了用于BIT测试性指标验证的总线级故障注入系统及其硬件、软件设计以及该系统的工作流程,并通过时序分析证明了该系统进行实时故障注入的可实现性和可操作性,最后给出了该系统进行故障注入试验后的软硬件试验结果。
In this paper, the significance and practicability of BIT’s testability index validation and evaluation is analyzed. A bus-level fault injection system is used to validate BIT’s testability indexes and the design of the hardware, software and working flow chart of the system are discussed. The effectiveness of the real-time fault injection is shown by the schedule analysis. Finally, the test results for the hardware and software are presented.
出处
《航天器环境工程》
2008年第5期479-484,400,共7页
Spacecraft Environment Engineering
关键词
测试性
机内测试
总线级
故障注入
故障诊断
testability
built-in test
bus-level
fault injection
fault diagnosis
