The Research Of Facility Agriculture Based On The Wireless Network

In the regulation of the greenhouse’s environment climate, the greenhouse monitoring system to realize the internal environment factors monitoring and control, which provide the best environmental condition to the plant growth and development. Therefore, the design and research of the facility agriculture monitoring system has important theoretical basis and practical application value.At present, the Information transfer mode of the greenhouse monitoring system are mainly the cable communication technology, such as profibus technology, etc. In the greenhouse, the cable transmission method is difficult to deployment, and installation maintenance is inconvenient and so on. The regulation of the equipment on the greenhouse is mainly on the basis of practice experience, and the control accurate is not enough, and energy consumption is higher. In view of the above questions, study on the greenhouse monitoring system, so as to improve the greenhouse monitoring accuracy, reduce the operation and maintenance costs, to improve the level of automation. Therefore, this paper researched the facility agriculture monitoring system software and hardware design and greenhouse control strategies. The main work of the paper are as follows:1The background and significance of facility agriculture. Through the summary of the domestic and international research status of greenhouse monitoring system, the paper put forward the research content and the structure of the thesis.2Put forward the overall design framework of greenhouse monitoring system. According to the facility agriculture monitoring system suitability index evaluation requirements, the paper puts forward the functions of the facility agriculture monitoring system should have; On the analysis of the characteristics of greenhouse environment and summary, and three level control model research, finally proposed the control system design framework of the greenhouse.3Put forward the control strategy of greenhouse’s environment. Based on the expert system of greenhouse’s dynamic control strategy (maximum photosynthesis strategy, the energy saving strategy, etc.), to control the greenhouse environment factor (air temperature and humidity, soil humidity, light, etc.).4Research and analysis the wireless network technology and fuzzy control technology. Based of the analysis of a variety of wireless network technology of the operation characteristic (transmitted power and transmission distance, equipment cost, etc.), select the ZigBee wireless network technology as the facility agriculture wireless transmission mode. And the analysis of the fuzzy control technology.5The design of the hardware of the control system. Mainly includes the sensor nodes, gathering node and control node’s hardware design. 6The design of software of monitoring system. Mainly for the sensor nodes, gathering node and control node’s programming.7The design and simulation of the greenhouse temperature and humidity fuzzy control technology. Designed the greenhouse’s temperature and humidity of the fuzzy control algorithm, and simulate by MATLAB.8Sum and prospect the monitoring system.