Greenhouse Intelligent Monitoring System Design And Research

With the development of economic conditions, people's demand of everyday clothing, food, shelter become increasing too. As foods, the market of off-season fruits and vegetables, green pollution-free products, and GMO products are biger day after day, however,greenhouse technology just solve the conflict between the growing market demand and the reality that traditional technologies can not meet this demand .Based on analysis and research the domestic and international greenhouse system, subjects design a greenhouse intelligent monitoring system.The intelligent monitoring system designed for the greenhouse include client, embedded Web server, wireless sensor networks three parts.The whole system is based on B/S structure, the client can be any PC connected to the Internet witch does not need to install any special software and you can view the intelligent monitoring system for monitoring the greenhouse picture.Embedded Web server using LPC2210 ARM7TDMI-S microcontroller core for the hardware,andμCLinux operating system software for platform. Embedded Web server to achieve two main functions: First, communicat with wireless sensor network and received the environmental data it collection then analysis, processing, and give it control command. Secondly, communicate with clients through the Internet, to share local data of the remotly.Wireless sensor network consists of three nodes: the coordination node, routing node, terminal node. Coordinator node is responsible for communication with the embedded Web server, and coordinate the star network where they operations. Routing node transmission the information. Terminal node may adjust the terminal regulator according to the command and control to regulate the environmental parameters. Design of various types of sensor nodes follow a low-power design.On the basis of hardware and software design, subjects also carried out for the annual production of greenhouse control algorithm design. For annual production of greenhouse need to adapt to the characteristics of a large temperature span, the design based on fuzzy control algorithm and switching control of a class of economic thought and energy control program. After the design is complete, using MATLAB / Simulink simulation tool to simulate the control program to verify its effectiveness.