基于虚拟仪器技术的主机监控系统自动测试系统设计

Design of automatic test system of a certain ship engine monitoring system based on virtual instrument technology

针对某主机监控系统故障维修难度大且缺少相应维修测试仪器和工装设备的实际情况,设计了一种基于LabVIEW的PCI总线和数据采集卡的自动测试装备并完成了具体设计工作。其采用PCI-3361进行信号的采集和控制向量的输出,通过继电器和外部接口电路实现测试单元的自动选择,利用Lab VIEW应用程序进行故障的检测、识别、定位。实验表明该测试装备工作可靠,适用性良好。

For the actual situation on lack of corresponding maintenance test equipments and fault maintenance difficulty of main engine monitoring system,a automated test equipment for PCI bus and data acquisition card based on LabVIEW was de-signed,which uses PCI-3361 to execute the output signal acquisition and vector control,employs the relay and the external in-terface circuit to realize automatic selection of the test cell,and utilizes LabVIEW application program to conducts fault detec-tion,identification and location. The experimental results show that the test equipment is reliable and has perfect applicability.