Research Of Embeded Control System Of Greenhouse

Modern automatic control system for greenhouse is one of the realization forms of facility agriculture, which can make a man-made climate of the greenhouse or eliminate the disadvantages for crop. In such a greenhouse, the produce period of crop can be shortened. Meanwhile the target of high-quality, high-output, high-benefit can be reached.Greenhouse control system is to save energy and improve output,and it is a high effect agriculture developing technology. This paper mainly aims at a control system with lower automation situation which are used greenhouse, by deeply analyzing green house executing equipment cause the influence for environment factor. Applying fuzzy control, computer control technology and communication technology to research the control system of greenhouse, and developing a intelligence control system of greenhouse.The system of the greenhouse condition is a big system, it's difficult to set up a mathenratic model.Using normal control method hardly get a satisfied dynamic and static performance. Considering the characteristic of the fuzzy control, it needn't build the mathematic model of the controlled object, thus, it is possible to control the system that is non-linear, time variety and lag system. It is reasonable to adopt fuzzy control method to control greenhouse's condition. This thesis provides a designing scheme of the fuzzy control, and use computer technology and fuzzy control to get a intelligence system that is fast,exact and good performance. This system can test and control temperature, wet, carbon dioxide thickness and illumination intension. This system can achieve data collection inside, real-lime data and history data can be displayed, real-time curve and history curve can be pictured, real-time modified the controlled parameter, by the follow up to achieve real-time monitor and control in the greenhouse.To meet the requirement of the design of greenhouse control system, such as performance,price,credibility,easy to design, the author takes the advantage of ARM's and CAN's together and designs a new greenhouse control system. The system makes use of ARM of 32-bit microprocessor as the hardware kernel, and CAN as the communication method. The system can...