天津职业技术师范大学学报

基于ARM单片机与PC机通信设计了8路通用数据采集系统,该系统能够同时采集电压、电流、温度、压力、湿度等不同类型的数据。由PC机作为上位机选择采集通道与数据采集类型,通过传感器及放大电路将被采集对象转换成单片机能识别的模拟电信号,同时由ARM内部集成的10位高速A/D将模拟电信号转换成数字信号,通过串口以串行通信的方式与上位机进行数据及控制指令的通信,将采集的数据传输给上位机,由上位机完成数据分析、换算、储存、显示、调取历史数据等功能。

MCU based on ARM and PC-communication,the eight general-purpose data acquisition system is designed in this paper,which can simultaneously capture voltage,current,temperature,pressure,humidity,different types of data from the PC,taking PC as the host computer option acquisition channels and data collection types,through the sensor and amplifier circuit,collected object is converted to analog electrical signal microcontroller.In the meantime,by the ARM within the integrated 10-bit high-speed A/D the analog signals can be converted into digital signals.Through the serial port to serial communication manner with the upper machine instructions for data and control communications,the data is transmitted to the host computer,which performs the data analysis,conversion,storage,display and retrieval of historical data and other functions.