农田环境信息远程采集和Web发布系统的实现

Implementation of remote acquisition and web publication system for farmland environmental information

针对农田环境信息多样性、多变性和分散性等特点,设计并实现了一种基于无线传感器网络、GPRS、Web和Web Services技术的农田环境信息采集和发布系统。首先,采用大量微型无线传感器网络节点组成多跳、自组织智能网络系统,实现对农田环境信息的分布式多点采集;其次,通过GPRS将实时数据发送到数据处理服务器,经处理后存入数据库。最后,通过互联网发布数据并提供数据共享的服务。系统通过.Net Remoting机制构建分布式处理方式,实现了B/S、C/S和Web Services3种模式。通过客户端不仅可以查询实时数据和历史数据,了解节点分布情况,而且能够远程控制服务器端的数据采集模块。该系统的实现为农业领域中远距离、多要素数据的采集和共享提供了一种便捷的解决方案。

Aiming at the diversity,variability and dispersion of farmland environmental information,an acquisition and publication system for farmland environmental information based on wireless sensor network,GPRS,Web and Web Services was designed and implemented. Firstly,distributed and multipoint acquisition of farmland environmental information was achieved by a multi-hop and self-organizing network composed of large numbers of miniature wireless sensor network nodes.Secondly,real-time data via GPRS was sent to the server of data-processing and stored in the database.Finally,data was published and the service of data sharing was provided by Internet.The distributed system was developed with the criterion of.Net Remoting under the B/S,C/S and Web Services mode.In this mode,users could query real-time and historical data,obtain the distribution of nodes,and remotely control the data acquisition module on the server.The result shows that this system provides a flexible solution to solve the problem of data collection and sharing of long-range and multi-elements in agriculture.