Modern Facility Agriculture Environment Distributional Wireless Governing System Research

Along with people's living standard enhancement, the people already havn't satisfied the consumption of corresponding season vegetables and crops, instead,the counter- season crops have accounted for an increasing proportion in common people's daily consumption. The more and more planters/cultivation enterprises develop their own facility agriculture in abundance to realize their short cycle and high benefit. "facility agriculture" is one of loan word glossary, it means realizing partial manual control environment for planters or breeding by agriculture engineering method and modern facility. In recent years, developed countrys have already transited to "the factorization agriculture" from "facility agriculture", and have appeared the large scale and the modernized overall tendency. The development level of China's agricultural facilities is still far from developed countries. So, the establishment of the modern facilities is the important part to realize to modern, quality and efficient agriculture for our country. And, research and design an environmental control system consistent with China's national conditions and local weather conditions is a big duty of our facility agriculture development.This article has designed a set of facilities agriculture environment wireless control system, which satisfies the large scale and modern enviromental control system (control area may amount to above 40 hectares) for greenhouse, may realize the temperature, the humidity, CO2, the illumination, the soil moisture automatic control. The environmental controller is composed by extension server, host server and higher server. The extension server and host server use SCM system, the higher uses ordinary PC. The use of cheap SCM and high-performance PC obtains the better performance. The controller achieves the major greenhouses'networks and distributed control by long-distance PC's monitoring. SCM is the core of the extension server, including host module, data acquisition module, output control module, data communication modul. The extension server complets the collection and control of a point's analog signals, including the greenhouse temperature, the humidity, the strength of illumination, the soil moisture and carbon dioxide density, the gathering result is delivered to the data-carrier storage or transmitted to the host server, the host sever passes the data to higher server. The PC can record and display real-time parameter "the field distribution", in a PC breakdown or communication barrier, except for neither data record nor the graphical display, the system also can normally work, the parameters can be imported through the keyboard input at this time. Because of the uses of the wireless communication in the field, the system has lifted the free farming restriction arose by filed wiring. This system's installment and maintenance are convenient, it avoids the cumbersome processes such as wiring and enhances the system's reliability, but also easy...