全液压推土模拟机实训台黑匣子系统开发

Development of black box system of training set of full hydraulic driver bulldozer

根据全液压推土模拟机实训台维护、维修与超载报警的需求,设计了全液压推土模拟机实训台黑匣子系统。该系统以单片机AT89C52为微处理器;采用K型热电偶作为温度传感器,测量液压油的温度;选择MSP压力变送器作为压力传感器,测量液压缸内的油压;应用AT24C64作为数据存储器,实时存储系统采集的温度和压力值,AT24C64存储器可以自动存储超过10h的数据。同时设计了上位机数据读取系统,通过RS232串口进行上位机与下位机的数据传输,实现液压系统运行参数的读取与上位机数据的存储、分析。

According to the needs of maintenance ,repair and alarm ,a black box system was designed for training sets of full hy-draulic driven bulldozer.For this system the micro-controller is based on AT89C52 single chip which is very cheap.Then the oil temperature was measured by type-K thermocouple and oil pressure in hydraulic cylinder was obtained by MSP pressure transmit -ter respectively .Meanwhile the AT24 C64 was selected as data memory to store the temperature and pressure in order to store the data at real time which can store more than 10 hour’s data.Also a data record system based on computer was developed based on RS232 serial communication .