Agricultural Greenhouse Environment Data Acquisition And Automatic Control System Design And Implementation Base On3G Network

With the progress of science and technology, all countries will be thedevelopment of science and technology of agriculture in the first place, the datacollection and automatic control of agricultural protection to the environment ispriority among priorities, China’s agriculture is from extensive type to intensive laborintensive gradually for technology intensive development, application of science andtechnology in agriculture is more important, save energy consumption, improveefficiency, with a significant benefits the country and the people.By the influence of greenhouse climate gradually get the favour ofthefarmer, which control the temperature and humidity into themanagement ofthe mostimportant point. Temperature and humidity is high or low, will make the vegetables tostop growing or growth slowed down, so will always control temperature andhumidity is very important in the reasonable range. At this stage, shed still use oneor two traditional thermometer hanging in the middle of the changeofagriculturalgreenhouse, rely on people to constantly monitor temperature and humidity, so as toadjust the temperature and humidity in the greenhouse. The human way is prone toerrors or omissions, cause serious consequences. Therefore, needs the sciencethe method to solve this problem. Nowadays, along with the agriculturalproduction gradually scale, with the temperature and humidity data acquisitionmethod is difficult to meet the large traditional planning. Therefore, the modernizationof agriculture greenhouse should adopt automatic temperature andhumidity acquisition means of monitoring temperature and humidity, so as to regulatethe agricultural greenhouse, so as to adapt to mass production. Relying onthe scientific methods and advanced technology, by controlling the environment to the artificial control of crop growth in the natural environment, the effects on cropgrowth as little as possible by natural conditions, do four production efficiency, canimprove the output and create new value.At present, Agriculture greenhouse have been using electronic surveillanceequipment parts. But are limited to work independently, such as electronicthermometer, electronic moisture meter and electronic detection in soil, or to artificialto record data, then according to the data, the artificial environment regulation,accurate difference, no linkage and automatic control. One of the more to the region toestablish a special wireless communication system, but the construction difficultyand high cost, it is difficult to large-scale promotion to farmers. Therefore, we considerthe telecom operators, The extensive application of rapid development, China Telecom3G communication technology based on electronic technology, without changing theexisting wiring greenhouse conditions, the implementation of wireless temperatureacquisition system China Telecom CDMA20003G network based on wirelesstransmission technology, and can realize centralized implementation monitoring andcollecting data of a plurality of greenhouse is inside the multiple temperature andhumidity monitoring point, provide rigorous scientific data for greenhouse crop growth,improve planting economic benefit and master production has a very importantsignificance.The whole system consists of two parts of SCM and peripheral equipment:SCM by the motherboard and communication module, through an external probeto collect environmental temperature, environmental humidity, soil temperature service,soil moisture, carbon dioxide concentration, light intensity, monitoring image, infraredalarm data; the data will be collected and processed, then the flow of data through the3G network to China Telecom cdma2000I fixed server IP address the datatransmission is not in the form of text messages, text messages, to avoid congestion,byte flow of small, far less than the message costs incurred; accept the data server datainstructions; data according to the instructions, to control the exhaust fan, the volumecurtain machine equipment, irrigation system. Database management and control software, the Administrator Server and clientcomponents:An external probe data storage and backup; external probe collected data analysis;data will be finishing the to the designated mobile phone; the comparison after thespecial data processing, alarm data immediately reminded, and the data sent to thedesignated mobile phone number; control data (control rolling machine) the instructioncontrol terminal, wireless to the specified (SCM), the terminal corresponding tocomplete the work; be modified setting control data such as the household alarm, tomeet a variety of needs for each greenhouse environment; establish a data (name,address, kind crops); on the client side, the permissions can limit; release all kinds ofagricultural information, the information will be sent to the client (mail, mobile phonetext messages and other forms).Through field test system effectively completed the data acquisition and control,long-term retention of the relevant data in the greenhouse, has certain guidingsignificance for planting.