A Design And Realization Of Water Quality PH Monitoring System Based On ARM

In recent years, with the rapid development of our country science and technology industry, our country water pollution problem is getting more serious, production and living effluent contains large amounts of hazardous substances harmful to human health. Therefore, for the detection and control of water quality has become the focus of attention in China and around the world, especially in the lives of everyone with our interest of drinking water testing is very important.The detection system of water quality include of PH, conductivity, temperature, TDS etc. detected items, wherein the PH is one of the most important physical and chemical parameters of water. The traditional method of water testing mainly include empirical detection, chemical detection method, etc., the detection process of these methods are too complicated, have not a real-time, also bring secondary pollution, far from being to meet the modern requirements of water quality. Based on the design of this detection method using modern instruments, through relevant sensor network, will be measured amount of chemical or physical objects into electrical signals, amplified by the high- gain amplifier, filtering and other digital processing input into the microprocessor subsequent processing and display.For the modern requirements of water quality testing, the design of water quality detection system mainly aimed at the quality detection of PH in the research and design, this paper proposes to water PH detection based on intelligent sensor and embedded system implementation scheme. In the hardware design aspects of the design includes PH water quality parameters acquisition module, microprocessor module, the system display module, wireless transmission module, power modules, etc., can be realized on the PH of drinking water quality online real-time detection and display. In the aspect of software design was first built for embedded development environment, then write water quality detection system applications, design- related drivers and using QT and Web Access interface design to achieve the display, gives the key to the program as well as some source code, the final design is the system debugging and error analysis. This design has a very good reference for real-time detection of drinking water.