Design Of Greenhouse Environment Monitoring System Based On Wireless Sensor Network

As we all know,China is a populous and agricultural country.With the rapid development of economy and the improvement of science and technology,the content of high technology in agriculture has been grown up high.How to improve food production and develop the modern agriculture has become an important problem about national and people's livelihood with the growing population and increasing demand of foodstuffs.As an important infrastructure of agriculture in our country,greenhouses provide appropriate growth environment for plants,and play an important role in the modernization of agricultural production.The directions of modern agriculture development are intelligence,accuracy and networked.However,two kinds of greenhouse environment monitoring systems have been supplied so far,one kind is artificial monitoring,which has the problem of low efficiency,high labor costs and lack of real-time monitoring.The other monitoring system uses cable,which has the problem of highly cost,complexity wiring etc.Wireless Sensor Network,WSN has the advantages of low cost,simple structure,high efficiency,safe and reliable,high efficiency.Compared with the existing greenhouse environment monitoring system,this paper designed a kind of greenhouse environment monitoring system based on wireless sensor network.which sets temperature detection,humidity detection,light intensity detection,wireless communication,transfinite alarm,data real-time display,switch control,historical data storage and other functions into one.In addition to these,it also can directly achieve the function of real-time and effective monitoring in the monitoring center,to keep the greenhouses' environmental indicators in a suitable range.This article using the CC2530 produced by TI as a microprocessor,selects the temperature and humidity sensor SHT11 and light intensity sensor BH1750 for data monitoring,the ZigBee protocol stack to achieve wireless networking and communications,and the LabVIEW to write PC interface.The system has the characteristics of strong mobile flexibility,scalability,low cost,low power consumption and the flexible operation.From the test proves that the system has the advantage of high precision measurement,stable control operation,and can better satisfy people's demand for greenhouse monitoring.