Research On Farmland Production Monitoring System Based On Android And GPRS

In the detection of farmland environment,use sampling inspection and artificial data recording,then analysis of recorded data.However,the detection efficiency is low,can not carry out the real-time detection of the information obtained with reliability and delay.The information obtained is not reliability and hysteresis.With the development in Micro-electronicsTechnology and Information Sciene,There has fresome research on remote monitoring system aimming at mobile terminal.But most of them are based on Windows operation system,making it poor in free,open nature,man-machine interaction.Therefore,developing a kind of remote monitoring mobile terminal which is free,open nature and good at in man-machine interaction is of great significance for technicians in agriculture and ordinary farmers.So this paper proposes the design method of remote monitoring system of farmland based on Android and GPRS.On the basis of demand analysis,this paper puts forward the overall design of the system,and based on this,advances the design scheme of hardware and software and introduces the main hardware circuit and software program in detail.In hardware,By comparing various parameters in the design of hardware architecture,identified as the wireless RF transceiver and micro controller combination scheme..It also does survey and compare of different microcontrollers,radio tranceivers,GPRS wireless transmission module.Eventually,the MSP430F5438 made by TI is selected as micro-controller.Its processing frequency is up to 25 M,at the same time,also has the characteristics of low power consumption and the rich I/O interface and peripheral resources,to meet the needs of a variety of sensors.The CC2520 is selected as radio tranceivers and the SIM900 A double-frequency GPRS module is selected as GPRS wireless transmission module.After complete device selection,it also gives the hardware part of the detailed design of each modul.In software,it uses Zigbee technology to design wireless sensor network node.C language program is adopted to design Lower computer MCU's control program,including MCU and GPRS module,serial communication program,connecting GPRS network and sending data procedures and so on.Java technology is used to construct a service platform with data exchange station,processing data and wireless sensor nodes exchange data from a Android client request.The development of Android client application integrates ADT,the Android SDK manager and AVDM into Eclipse and uses Java language.The Android client can real-time display the data from MCU,the historical data query and display graph.