以VXI总线系统为硬件平台,基于Labwindows/CVI虚拟仪器软件开发了工程机械综合检测与诊断系统。在论述系统功能、原理的基础上,以某型机械化桥液压系统为例,阐述了其基于多传感器数据融合技术的检测与诊断系统的开发与应用。系统实现了对工程机械整车及各系统工况与性能的综合检测、诊断、评估,对其故障进行隔离、定位,为工程机械的使用、保养、维修提供了理论与技术依据。 VXI bus system as hardware platform, based on Labwindows / CVI virtual instrument software developed a comprehensive inspection and construction machinery system. Based on the discussion of system function and principle, taking a certain mechanized bridge hydraulic system as an example, the development and application of its detection and diagnosis system based on multi-sensor data fusion technology are expounded. The system realizes the comprehensive detection, diagnosis and assessment of working conditions and performance of the entire vehicle and each system of construction machinery, isolates and locates the fault, and provides theoretical and technical basis for the use, maintenance and repair of construction machinery.