Design and Realization of Health Monitoring System on Electric Wheel Truck

This paper investigates vehicle health monitoring system (VHMS) on electric wheel truck. VHMS is connected with the control system of the electric wheel truck. It has local real-time system clock, mass size nonvolatile memory, and several interfaces such as Universal Serial Bus (USB), RS-232 and Ethernet for data transmission and download communication. Using General Packet Radio Service (GPRS) module, real-time data communication with remote server can be achieved. This paper analyzed the problems of the current data acquisition system, proposed the structure of VHMS based on field bus. Using data dictionary, determination rules and reasoning mechanism, monitoring data can be processed, classified, stored and transmitted. This paper completed the hardware design and the prototype of VHMS, achieved the online acquisition, storage and remote transmission of the parameters including engine, generator, rectifier, inverter, retarder, working hours, fuel consumption, mileage and so on. Health status of electric wheel truck can be monitored on the remote server.