Development Of Farmland Wireless Communication Meteorological Monitoring System Based On LabVIEW

Weather conditions can affect agricultural production smoothly,and has a direct effect on farmland crops yield.According to statistics,meteorological disasters in natural disasters in China in the first place,account for more than 70%of all natural disasters.Drought,waterlogging,wind,frost,hail and other agricultural meteorological disasters on agricultural production has had a huge impact.The use of automation technology in agricultural meteorology,greatly improve the level of the meteorological observation in our country,improve the accuracy of the meteorological data,and reduce the work intensity of the meteorological monitoring.Farmland meteorological observation is affected by geographical location and inappropriate use of manned meteorological monitoring system,so choose GPRS wireless network communication technology combined with Lab VIEW language design remote farmland meteorological monitoring system.Earlier the original ground monitoring information system network construction,has low equipment performance is low,the line speed is low.It is difficult to meet the requirements of meteorological data transmission.At present system needs to provide extensibility,convenient upgrade of hardware and software in the future.All of these problems above can be done by GPRS wireless network,Lab VIEW software can be realized through the virtual serial port and GPRS module connection,so as to realize the wireless network on meteorological monitoring.This study remote monitoring agriculture weather information,so virtual instrument technology was developed based on Lab VIEW language system.This system was composed of outdoor sensor,collector,power supply system and indoor meteorological information management system software.Field sensors collect weather information,which including temperature,humidity,rainfall,wind speed,wind direction.The collector of meteorological information regularly continuous acquisition and processing data,transmitting integration of meteorological data to the the Lab VIEW meteorological information management system through the GPRS communication moduleat the same time,LabVIEW software can read the meteorological collected and analyzed data.Analysis result visually presented.This research mainly include:sensor selection,based on the data ATmage128L microprocessor chip selection,the selection of power supply,the choice of GPRS module and conFigureuration,VCOM + VSPD virtual serial port conFigureuration software,the Lab VIEW software to connect to the virtual serial port programming,and the LabVIEW software to connect to the database programming.Results show that the system development to improve the continuity of the agricultural meteorological information monitoring and accuracy.The monitoring field areas covered by GPRS network can be observed the real-time meteorological,There is no significant difference compared with monitoring data of meteorological department.These meteorological monitoring data can evaluate the harm of meteorological conditions for agricultural production,also can improve the ability to cope with sudden weather condition,lay a foundation for realizing agricultural modernization.