Design And Implementation Of Multi-Parameter Water Quality Monitoring System

With the development of science and technology, human life has been an unprecedented level of increase. People enjoying the scientific and technological achievements to bring the convenience and comfort but also for the various types of environmental pollution control efforts. Water pollution is one of the core of its contents. Water quality monitoring is an important means of preventing water pollution. Therefore, water quality monitoring equipment research and development has great significance.The traditional method of monitoring is based on the principles of analytical chemistry, water samples were collected on a regular basis, then back to the laboratory for analysis, measurement of various parameters of water quality, complicated operation and can't guarantee the accuracy and timeliness. This compares with water quality monitoring system with parameter parameters, effectively improve the efficiency of water quality monitoring.In this paper, an in-depth understanding of the working principle of reservoir water quality monitoring system requirements and water quality monitoring system based on the proposed design of the overall water quality monitoring system and the actual structures. The multi-parameter water quality monitoring system STM32F103ZET6 as the core element, the use of water quality monitoring sensors physical parameters of water quality analog electrical signal is converted to a current signal is converted by the signal conversion circuit for the sensor output can be handled 0-3.3V STM32F103ZET6 voltage signals, data acquisition modules convert the analog signals into digital display of water quality data collected on the LCD screen. At the same time through the RS485 serial communication with the host computer communication technology. PC software program multi-parameter water quality monitoring system using a Lab VIEW development can achieve water quality data collection, processing, display, storage, and display the data waveform. Option II using C# language development, as well as a background application SQL server 2008 database to achieve the water quality data and real-time display of the rate of change, storage, and online waveform observation, and has a history of water quality data online query function. The system is designed to achieve the desired objectives.