| The progress of science and technology drives the modern age when human beings entered a civilization,farmland environment remote monitoring information becomes the key to management of farmland. In order to be able to timely and accurate monitoring of the real-time change of farmland ecological environment, must establish a set of devices to real-time access to environmental information, in order to achieve on timely access to environmental information. So this topic on the remote monitoring was improved, upper machine to join the mobile client, let users anywhere online monitoring.Based on the analysis of farmland environmental monitoring system at home and abroad on the basis of the research status and system applications, the integrated use of embedded technology, information detection technology and network technology, research and design a structure based on embedded system and GPRS technology of farmland ecological environment online real-time remote monitoring system. Using the sensor for farmland information, displayed on the monitoring center and the mobile client, real-time access to data information, to farmland environmental management and protection in advance., first of all, reading lots of literature at home and abroad to understand farmland environment remote monitoring system of research and development, comprehensive consideration according to actual demand, embedded remote monitoring of GPRS technology and scheme is put forward, and the general framework of the system carries on the preliminary analysis and design. Then, set up the Linux operating system platform. Create an embedded cross development environment, set up environment variables, configuration tools, configuration, network communication and serial communication, crosscompilation; The transplantation of the Boot Loader; Configure, compile, and transplanted into the Linux system; QT development root file system, transplantation; Finally create a complete operating system. Then, the hardware structure was designed and implemented system. System control chip choose S3C2440; Sulfur dioxide gas detection chooses SO2-10 sensors, ultraviolet detection choose ZWX-R4 sensors, carbon monoxide gas detection choose ZE07- CO sensor, NO2 gas detection choose SAW- NO2 gas sensor, PM2.5 dust detection choose SDS011 type sensor; Wireless communication module testing choose SIM300 GPRS module model. At last, the design of the software program. On the basis of mastering working principle of the sensor to further develop the data collection procedure; Data sending and receiving procedures; A serial port communication program; Monitoring center program design, etc. And based on the research and development of the Android system mobile client software, and introduces the mobile client make writing steps; Finally realizes the mobile client development.Eventually, completing the experimental measured data and the data analysis. Experimental results show that the system can real-time accurate data collected the data information of farmland, and through embedded under the action of the server and the Internet, data real time remote transmission and displayed on the monitor center and mobile client software. Experimental data has the characteristics of real-time, stability, and can satisfy the real time remote monitoring network and data transmission requirements. Embedded technology, computer information network technology and GPRS technology, sensor technology, the combination of certain innovative, laid the foundation for later study. |