压力测控系统的设计

The Design of System Controlled by Measuring Pressure

主要利用亚控组态王(KingView)实现PC通过RS2 32串口和PHILIPS单片栅LPC932UART通信进行压力的测量。压力经由压力传感器转变为电压信号,电压测量程序使用了Σ-ΔADC算法,利用LPC932自带的模拟比较器实现了廉价的AD ;利用组态王和单片机通信进行模拟量的测量,在PC上应用生动形象的画面进行显示;经调试达到了设计要求。

This design primarily realizes the PC communication with the UART of PHILIPS single-chip LPC932 by the RS232,and the measure of pressure,with the use of KingView.The pressure is changed into the electric voltage signal by the pressure sensor.The procedure which is used to measure the voltage makes use of the Σ-ΔADC and the analog comparator of LPC932 to realize the purpose of cheap AD.With the use of KingView communication with single-chip,this design measures the analog signal and finally displays vivid image in PC.After debugged this design attained request.