基于PXI模块化仪器的载人航天器自动测试等效器系统设计

Design of Manned Aircraft Automatic Testing Equivalent System Based on PXI Instrumentation

摘要:

随着载人航天器型号的不断增多,对其等效器的测试效率和通用化程度提出了更高的要求;为提高载人航天器等效器的自动化程度,提出了一种基于PXI模块化仪器的设计方法;系统核心为PXI控制单元,使用LabVIEW对各功能模块进行控制,可以模拟载人航天器下行火工状态量、模拟量以及地面控制指令的执行结果;该系统可以与地面测试设备进行数据交互,实现可自定义的“一键”自动测试,测试效率从原来用时约65 min缩短至6 min以内,人力从4人缩减至2人,有效地提高了测试效率和系统的可配置性。

Abstract:

Higher requirements of testing efficiency and currency of manned aircraft equivalent have been put forward as the kinds of manned aircraft increasing. An equivalent system has been designed based on PXI instrumentation in order to increase the system efficiency of manned aircraft equivalent. The system could simulate manned aircraft to pass initiating device state signal, analog signal, and execute the result of ground controlling order by using PXI and LabVIEW. The equivalent system could exchange testing data with ground testing equipments to realize the user-defined automatic test. The system achieves a big step forward in efficiency and system configurable, with efficiency increases from 65 minutes costing to less than 6 minutes costing and manpower saves from 4 to 2.