Design And Implementation Of Temperature Measurement And Control System For Agricultural Greenhouse Based On PROTEUS

Along with the agriculture greenhouse to be quickly expanded and used, fruits and vegetables, which are suitable for growing crops, have an improved obviously on people’s living standards. It is very important to the growth of crop by the environmental factors of agricultural greenhouse, such as concentration of CO2, temperature, humidity, illumination.which are controlled reasonably and appropriately. In numerous factors, temperature has a crucial influence on the growth and development, metabolism and Photosynthesis of crops.After investigating and visiting the YangLing demonstration area and the surrounding areas and parts of Shaanxi, By the survey and interview with YangLing Demonstration Zone and periphery, and some area of Shaanxi, it is found that the vast majority of greenhouse growers still work with their families, also adopt traditional thermometer to measure the temperature manually, and operate the equipments manually, not only the bad realtime and low accuracy, and waste of the manpower, material resources compare greatly. This makes an lower efficiency and higher cost in prophase. At present, the greenhouse comprehensive factor measurement and control system in the market, because of its high price, complex operation and maintenance, low cost performance, is not easy to be extended to the majority of single job greenhouse users. is expand not easily to majority of family with single homework to use.In order to measure and control betterly greenhouse environment temperature effectively,using the feat growth environment to enhance the yield and quality of crop, reducing the investment cost of greenhouse effectively, increasing peasant’s income. This text designing a several-points temperature control system of greenhouse, based on the PROTEUS and Multisim simulation software platform design, simulation can automatically monitor the greenhouse temperature, beyond the preset temperature range, can issue alarm signals, then it can control the equipments to work outside of the greenhouse, in order to regulate a right temperature scope to fit growth of crop.