Design And Implementation Of Real Time Monitoringsystem Of Water Quality Online

With the development of economy and the improvement of people’s living standard, the health and safety of drinking water has attracted wide attention.So a product monitoring the water quality real time is very important。Real time monitoring system of water quality online is an integrated on-line automatic monitoring system.In this system,online automatic analysis instrument is the main part and modern sensor technology, automatic measurement technology, automatic control technology, computer application technology, related special analysis software and communication network are also used. The system includes test terminal equipment and remote water quality monitoring center.The test terminal equipment includes water quality acquisition sensor,A/D converter,GPRS which transfers data by wireless.During the monitoring process,the embedded controller which has low-power dissipation and high-performance transfers the water quality data to the remote water quality monitoring center by GPRS or Ethernet network.In this thesis,the research at home and abroad was introduced and some popular systems in the market were analyzed at first.Based on the analysis, the research method used in this paper was confirmed. Main parts of this paper are as follows:Sensor type.The water quality contents needed to monitored controls the sensor type; System hardware designr The EP1C6T144C8belonging to Cyclone series produced by ALTERA company is the core equipment.The AD7689and EM310are adopted in the A/D converter part and GPRS transfer part respectively.After relevant PCB design,the control panel is finished;System software design:Based on the control panel,design some visualization interfaces,such as A/D converter process and GPRS transfer process; System test:This system was tested by water quality online software and passed the test at last.