Design And Study On Greenhouse Automatic Irrigation Monitoring And Control System Based On Wireless And Embedded Technologies

Industrialized agriculture is the important embodiment of agricultural modernization level, and greenhouse is the typical representative of industrialized agriculture, so we consider improving the construction of greenhouse that is our important tasks. However both wired monitoring and control system and traditional wireless monitoring and control system have weakness in application, such as wiring problems, remote working problems, high costs, and energy consumption. I proposed wireless technology, embedded technology, constant pressure control pump technology are integrated into the greenhouse irrigation monitoring and control system. In order to improve the modernization level of the greenhouse, while ensuring the implementation of the various greenhouse equipment safe, reliable and stable operation. The following aspects are the specific content of the study:(1) Research on the greenhouse monitoring and control system of domestic and international situation and analyze trends, guide me to the direction of research and design ideas. Choose short-range communications of ZigBee technology, long-range communications of GSM/GPRS technology, embedded ARM technology, and use into the overall system design.(2) Study and design a serial of control strategies that are all application in greenhouse automatic irrigation system. In part of constant pressure control, design PID control algorithm and research Fuzzy-PID algorithm, with Matlab modeling and simulation. And then have other control strategies, including manual, timing, parameter, SMS.(3) Build the system's hardware structure and software workflow. It contains selected hardware materials, hardware connection of each node, software functionality and main code.(4)Installing system in the greenhouse to test the actual operation, analyze and summarize results.We proposed the greenhouse automatic irrigation monitoring and control system based on wireless embedded technology which includes ZigBee, GSM/GPRS, embedded and the constant pressure control. The whole system is not only cost savings, energy savings, but also different user-specified different control functions, which can ensure system stable and reliable operation. Generally speaking this system is suitable for wide range of applications in greenhouse environment.