基于PXI总线的空间站对接机构自动测试系统硬件平台设计

Design of Hardware Platform in Automatic Test System for Space Station Docking Mechanism Based on PXI Bus

为了解决空间站对接机构单机测试过程中传统手工串行测试手段误差大、自动化程度低、测试时间长等问题,针对相关测试任务,设计了一种由遥控指令信号产生电路、遥测指令信号监测电路、模拟电位计电路以及可调拉偏电阻电路组成的基于PXI总线的空间站对接机构自动测试系统硬件平台。系统经调试后,通过与软件系统配合,可完成供电通道切换、电源信号和OC门信号的监测与测量,符合测试要求,可以提高测试效能及测试质量,并降低装备测试成本。

To solve the problem of big error, low degree of automation and long test time in the tra-ditional serial manual test, an automatic test hardware platform for the single machine products of thespace station docking mechanism was designed. Based on the related test tasks, the remote-controlinstruction signal generating circuit, the telemetry instruction signal monitoring circuit, the analogpotentiometer circuit and adjustable pull resistance circuit were designed. The debugging works ofthe equipment and the self-made circuits were completed. The results showed that the hardwarecould satisfy the test requirements, the test efficiency and quality were improved, and the test costwas decreased.