基于ARM11的电厂无线数据采集与控制系统软件设计与实现

In this paper，the software design of a wireless data acquisition and control system for plant which includes two main parts: the upper and lower machine were described. The lower machine that includes sensor as data acquisition unit and development board, i.e. the control unit and the upper PC with configuration software make the whole system. MODBUS RTU protocol is used as the data communication format in the lower machine and the development board reads real-time data through digital quantity and analogue module. After the recording and analyzing of data, the lower machine may complete some control task and realize some business functions independently according to the analysis results. GPRS DTU is used as the full transparency transmission and relying on GPRS and Internet networks the upper and the lower machine communicate with each other, so this system achieves data processing and controlling remotely and real-timely. It is useful and has a great significance, for after using, it shows its great ability in groundwater resource management.