Automatic Testing of Radio Altimeters by VXI Bus Technology
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摘要: 提出了基于VXI(VMEBus eXtension for Instrumentation)总线技术的具有通用性、扩展性和先进性的机载设备自动检测设备的实现方案.以两种常见体制的无线电高度表为例,对系统进行了功能和结构设计,讨论了关键技术,设计了测试方案,从测试方法、内容、原理和结果分析等方面进行了讨论.通过分层测试和引入人工辅助测试手段,解决了早期高度表可测性差的问题.软件模拟运行验证了分层测试的可行性和优越性,满足系统设计的指标.Abstract: A scheme to test air borne equipments automatically was proposed based on VXI bus technology. The function and structure of the scheme were described by taking two common types of radio altimeters as examples. With introducing the key techniques involved in the scheme, an idea to improve the poor measurability of older radio altimeters by testing in different layers aided with hand tests was stressed. Finally, simulation tests were carried out to demonstrate the feasibility of the scheme, at a trouble locating rate of 85 pct and a trouble shooting rate of 60 pct for the altimeters.
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Key words:
- automatic detection /
- radio altimeters /
- bus organization
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