Design Of Automatic Control System For Arch Greenhouse

With the development of economic, the research for modernize agriculture would be more and more taken seriously. In the vegetable cultivation, the intelligent greenhouse has already become an important part of modern agriculture.The intelligent control system for vegetable greenhouse that is gradually developed is an efficient new resource-saving technology in Shouguang known as the vegetable town of China in recent years. It combined with computer control technology on the basis of ordinary greenhouse to promote the greenhouse highly intelligent. This technique is based on the best conditions for the growth of vegetable crops to be pre-set to promote the high yield of the crop while saving labor.The lighting covering on the smart shed is the most basic material,it ensures the normal planting crops in the not-open-air environment, at the same time to achieve the purpose to regulate growth cycle to prevent pests and diseases, and the purpose of improving the yield and quality of vegetables.In the article the cover were classified and detailed.The design thought of intelligent greenhouse is using microcontroller as the control, the use of automation technology to acquisition parameters of the Shed air temperature, air humidity, soil temperature and humidity, light intensity, shutter time, carbon dioxide and oxygen concentration, and a number of importantthe data and displayed in the Shed through a wireless transmission network to facilitate staff promptly adjust the default parameters, but also through the RS-485bus data acquisition information to the host computer and data processing, intuitive show to workstaff, with alarm system, realize remote monitoring and control, to constitute the smart shed the comprehensive monitoring network, the more accurate the greenhouse temperature and humidity, ventilation time, illumination time and timing shutter time automatic control. The intelligent greenhouse will improve the defects of fuzzy management that vegetable growers on vegetable growth rely on in the past experience. in today’s conditions of production, the measurement of temperature, humidity, soil temperature and humidity and carbon dioxide content in shed, most growers are manually estimated based on crop growth conditions caused by low accuracy and control, not in time, labor-intensive, and easier to irreparable losses. Smart Shed achieve precise control by means of collecting environmental data and crop-related information, and improve labor efficiency, vegetables quality and yield of crop growth conditions.In the end of the paper, combined with the current developments of plastic greenhouse, I predict the trends of vegetables greenhouse,carry out the summary and outlook for the Smart Shed research and put forward the design concept completly intelligent.