Research And Design On Intelligent Irrigation Monitoring And Control System

The design and study of intelligent irrigation monitoring and control system is stated in this dissertation. The network monitoring irrigation system consists of some embedded terminal units and a central monitoring computer. It relates to some new technologies, such as computer technology, electronic engineering, network and telecommunication. With the watermark sensor, pH/EC sensor, and relative humidity sensor etc., the supply of the exact amount of water and fertilizer is realized. The central monitoring computer controls the terminal units through field bus. Built-in expert system for irrigation and the weather information received through Internet will help the forecast of irrigation.Modern industry becomes more and more larger, successive and complicated, and the process is complicated too. On the other hand, the products get more and more intelligent, easy to use and smaller. Then some new problems come out, such as uncertainty, diversity of information types, mass information and multi -functions. To solve those new problems, new pattern architecture, new theories and methods have to be studied. This promotes the development of intelligent monitoring and control system. The work listed below is accomplished in this paper:First, intelligent realization on irrigation is discussed, including network monitoring, wireless communication (SMS) and artificial intelligence. Then the embedded software and circuit design of terminal unit is described, including data collection, watermark sensor, interface design. Finally, the intelligence on the central computer is realized. It includes expert system based on Prolog, field bus based on RS-485, downloading the weather report through HTTP protocol and monitoring and control management software design.