Research And Design Of Embedded Multi-parameter Intelligent Analyzer For Water Environment

Intelligent analyzer for water environment is able to detect the concentration of some elements in the water environment. This instrument has been widely applied in industry, agriculture, business and people’s lives. Reliably, timely, and accurately measuring certain component concentration of water environment has a great practical value. Carrying out multi-parameter intelligent analyzer for water environment research has great theoretical significance and practical value.This article describes the detection of elemental concentrations in the water environment. We choose the ion selective electrode method to carry out the research of measuring some elements concentration in the water environment. Ion selective electrode method is an electrochemical method, which has the feature of convenient, rapid and so on. This article presents the calibration method of ion-selective electrode sensor and the algorithm of judging stable measurement data.According to the objectives of the intelligent instrument design, based on the LPC2124embedded processor chip, this article designs the overall program and the hardware circuit for intelligent instruments, including touch screen circuit design, the A/D converter circuit, the injection circuit design and the communication module circuit design.According to the functional requirements of the intelligent instrument, using modular software design methods, this article designs system software framework, the interactive interface and a number of software modules.Finally, we carried out the physical system debugging and testing of intelligent instruments. Test data show that intelligent analyzer for water environment designed by this article is stable, with high measurement accuracy, easy to use, achieving the design goal.