Design Of Intelligent Monitoring System Of Water Quality Based On B/S Architecture And Control Research Of Data Quality

With the accentuation of industry and agriculture on water pollution, monitoring and controlling the water quality cannot be ignored. The water conservancy’s informatization is guided by the national policy. The research on online water quality monitoring system of the reservoirs and rivers and connection with other water resources information monitoring systems can realize the real-time continuously monitoring of the multiparameter system which has the important practical significance. The excavation, comprehensive evaluation and application of prediction on water quality monitoring data has increasingly prominent demands on the data quality, so it is imminent to control the source data quality.Based on the above background and characteristics of water pollution and monitoring system, the use of B/S architecture design of water quality monitoring automation instrument to monitor intelligently the water quality status and control the quality of data can realize the information management on the multiparameter system. Taking the water quality monitoring system as the research object, it has carried on the thorough analysis:1. To classify the quality control technology of existing data by analyzing the current situation of the quality of data, the paper proposes and researches the data control algorithm-fuzzy expert system which is put the chroma of the water as the main factor. It also selects and introduces the key technology of data transmission of image:image compression algorithm and GPRS communication.2. In the process of obtaining the experience of the knowledge data of fuzzy expert system, it designs the analysis experiments to study the relationship between water quality chroma and metal ion parameters, researches the principle of color space theory, compares and analyzes the experimental results between national standard method and spectrophotometry, determines the relationship between concentration and aberration. It also determines the calibration scheme.3. According to the requirement of on-site monitoring and data quality control algorithm’s requirement to the software system, it gives the survey plan and designs the overall structure of the system. It studies the principle of the base terminal of the hardware circuit detailed, the operating system of software platform and interface driver of HPI.4. It verifies the reliability and stability of hardware and software in intelligent monitoring system for water quality based on the B/S architecture. According to the test of data quality control algorithm in a base station, the results show that the system is running well and the data quality can meet the design requirements.5. To summarize the experimental and testing process problems, it puts forward the rational revision proposal and carries on the forecast to the subject.Through the test in a reservoir base station, the water quality monitoring system based on the above scheme completed the data acquisition of multiparamete water quality, data quality controlling, remote communication, data management and other basic process of water quality information. It can also monitor the chroma of the reservoir, five commonly used indexes, COD, copper ions and other parameters in real time. The remote monitoring center can analyze, storage, query and finish the graphical visualization of data, increase the support of visual surveillance and early warning decision module, maximize the informatization level of water environment monitoring and has certain practical application value.