Dissertation
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
CLC TH764
Type Master's thesis
Year 2010
Downloads 43
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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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