Development And Engineering Applications Of Environmental Monitoring Platform Based On GPRS

The development of stable and reliable environmental monitoring platform has matured in some developed countries. However, there are mainly relying on imports in China, It is high cost of operation, maintenance and it is difficult to transformation. The development of stable, reliable, easy to maintain, intelligent monitoring platform received more and more attention from the national environmental departments. Based on the background of reservoir water environmental quality monitoring project, we researched intelligent environmental monitoring platform based on GPRS technology and embedded system technology. Water levels and water quality indicators are the key indicators for monitoring. The work was done as follows:According to the actual situation of the monitoring platform application and the detection equipment performance, we chose the Fuzzy PID control for precise temperature control and successful realized the Matlab simulation.The development of real-time online multi-parameter monitoring platform includes hardware design and software design. The hardware were based on STM32and S7-200. The Monitoring used sampling and analysis of water samples. The problems due to the pump start and stop has been solved. Base station design is easy to upgrade. The base station software design were based on μC/OS-II embedded real-time operating system. System migration and mission planning had been achieved. We developed the network communication function which was based on the GPRS and SMS technology. In this paper, the alarm mode would alarmed when the monitoring parameters were overrun, thanks to the alarm mode, the ability to respond to changes of water quality indicators was improved.The system was proved stable and reliable, it was able to achieve the desired design goals, we make the prospect for the future development and improvements of monitoring platform.