Dissertation > Industrial Technology > Machinery and Instrument Industry > Instruments, meters > Earth Science Instruments > Hydrological instruments

The Best Prediction Monitor System of Multi-channel Water Quality

Author DuanZhiFeng
Tutor LvYunPeng
School Zhengzhou University
Course Measuring Technology and Instruments
Keywords Water quality Monitor AR model AD7888 GSM
Type Master's thesis
Year 2010
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As society advances , the expansion of the city , the development of industrial sewage and waste emissions continued to grow , the serious pollution of water resources , many of the city 's groundwater are polluted to some extent , and there is increasing year on year trend , this makes it the quality of the living environment increasingly threatened , and the increasing scarcity of water resources , a serious impact on the people 's production and life , and brought many social contradictions and problems , environmental governance is an increasingly important position in the country's economic development , environmental monitoring is also gradually been recognized , water quality monitoring and more attention . For now at home and abroad , most water quality monitor can only be followed on a single project monitoring, effective and timely estimates not more than changes in water quality data deficiencies at this paper, the design of multi-channel with the best prediction of water quality monitoring instrument through sensor part of the sewage and wastewater sampling, sampling signal by 8-channel A / D converter AD7888 , the A / D conversion , the maximum simultaneous sampling of eight data signals , sent ATMEGA128 data programming process , the best prediction algorithm and AR model which can be achieved while monitoring the sewage wastewater multi data , and be able to complete the function of the data to predict . And for advanced GPRS -line monitoring of water quality monitor remote the only intermittent explosive data transmission , not effectively stabilize the shortcomings of large amounts of data transfer , this paper introduces via Modbus protocol data sent to the remote host computer , and then transmission of large quantities of data from the host computer to complete remote network . GSM module added timely and effective mobile phone SMS alarm or data query . Based on a brief analysis of the development of water quality monitor , detailing the the instrument system works best predictor principle and build AR model and depth introduction to the instrument hardware system and software system . And through testing and debugging , the monitor has a real-time , stable , reliable, characteristics can be estimated , and the range of applications is very broad , important for water quality monitoring and water resources and environmental protection .

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