Design And Study On The Intelligent Green House Monitoring And Control System

In recent years, the planting technology of green house has been rapidly spreaded and applied.It improves the output of the plants, and resolves the problem of the plants growth. But what the thegrowth environment of greenhouse plants need is too high. How to control the environment factorssuch as temperature, humunity and the illuminance has been a important topic. The traditional GreenHouse monitoring and controling system use the method of cable connection, which is very hard towire. And it is very easy to cause the cable arrange in a crisscross pattern.The other defect is that it iseasy to causeusing inconvenience, installation difficult, poor reliability. By comprehensive using theembedded technology, wireless transportation technology, intelligent control technology and so on,which is undoubted the development orientation.The paper points out the weakness of the traditional green house monitoring system.Andcombines the technology of single chip, zigbee, wifi, embedded technology.Finally the intelligentgreen house monitoring system are designed and realized.Applying the single chip technology andzigbee technology realize the function of multi point acquisition. Applying the wifi technology andembedded technology realize the function of video acquisition, wireless transportation and real timemonitoring for the on site monitoring. At the same time, after the designing of the environmentfactor software, hardware, the corresponding data fusion and fuzzy PID control algorithm. Itimproves the precision of acquisition and control.The paper introduces the the whole scheme of the project at first.and then introduce thecorresponding project function and design at the same time, it introduces the developmentenvironment establish process. Such as the configuration of the build sdk of IAR,the configuration ofthe linuxdevelopment environment.Then for the key factor of temperature,a method of fuzzy PID israised. And then the method is simulated. When compared with the traditional PID,it shows the greatadvantage.In order to finish the function of collection, transportation functions.The adaptive algorithm is used, it can improve the accuracy. Then the design of the video monitoring module isintroduced, which contains the selection of the hardware, the theory of mjpg_streamer, the theory ofcollecting the video, decoding and display.At last, I made some test of the system.The test result of the system indicates illumination,temperature, humidity video information can be shown on the ui in real time. Which satisfy thedemand of low delay, and it is steady.