基于LabVIEW的高速多通道航天器通用测试系统设计

Design Of A High-Speed Multichannel Spacecraft Universal Testing System Based On LabVIEW

摘要:

传统“微处理器+AD组件”的实现方式，在采集控制及数据处理等方面已很难满足多通道高速并行测试的需求。随着航天器系统及其设备复杂程度的逐渐提高，为满足航天器系统中多状态高速并行测试的要求，提出了一种基于LabVIEW的高速多通道航天器通用测试系统设计方案。该系统硬件架构采用PXI机箱、采集板卡、指令控制板卡及处理器板卡，同时基于LabVIEW平台进行系统软件开发，实现了多通道高速并行数据采集控制、数据实时显示、数据存储、数据回放及指令控制等功能。通过测试验证，该测试系统能够支持同时128通道在总采样率1KHz下的高速并行采集控制及后续数据处理，并能够支持64通道的指令配置及控制。通过长时间累积测试试验，结果表明本系统工作稳定可靠且通用性良好，具有很好的实用价值。

Abstract:

The traditional realization of “MCU+AD component” has been difficult to meet the needs of high-speed parallel multi-channel test in data acquisition and processing. With the increase of spacecraft system, for the high-speed parallel testing need of spacecraft , a design of high-Speed multichannel spacecraft universal testing System Based On LabVIEW is presented. The hardware architecture of the system uses PXI chassis, acquisition board, command control board card and processing board card. The software of the test system based on LabVIEW achieves functions of high-speed parallel multi-channel acquisition control, data real-time display, data storage, data playback and command control. Result shows that his testing system can support the high-speed parallel acquisition control of 128 channels in the total sampling rate of 1KHz. After a long-time test, the test results show that this testing system works stably and reliably, and has good practical value.