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作 者:孙忠富[1] 曹洪太[1] 李洪亮[2] 杜克明[1] 王迎春[1] 苏晓峰[1] 蔡田芳[2] 刘爽[1] 褚金翔[1]
机构地区:[1]中国农业科学院农业环境与可持续发展研究所,北京100081 [2]曲阜师范大学自动化研究所,曲阜273165
出 处:《农业工程学报》2006年第6期131-134,共4页Transactions of the Chinese Society of Agricultural Engineering
基 金:国家高技术"863"项目(2004AA247040);国家自然科学基金项目(30170538)共同资助
摘 要:针对农业对象具有的多样性、多变性、以及偏僻分散等特点,提出了一种基于GPRS和W EB技术的远程数据采集和信息发布系统方案。首先,通过RS—485总线与数字传感器连接,并与PC监控计算机构成温室现场监控系统;其次,通过GPRS无线通讯技术建立现场监控系统与互联网的连接,将实时采集信息发送到W EB数据服务器。系统软件核心技术系M S VB.NET和A SP.NET开发而成,构建了基于B/S(B row ser/Server)的“瘦客户”模式,只要通过浏览器不仅可实时浏览监测数据,而且能进行历史数据的查询。该系统的实现为农业网络信息通讯中“最后一公里”瓶颈问题提供了一种便捷的解决方案。Aiming at the characteristics of the diversity, volatile variation, remote distribution for agricultural objects, a technical solution of a GPRS and WEB based monitoring and publishing system for greenhouse environment information was presented. First, a RS-485 bus cable as a middle bridge was used to connect the PC and digital sensors together forming a field monitoring system. Second, connection was established between field computer and INTERNET through GPRS wireless module so that the real-time field data could be transferred to the remote database server. The software was developed with Microsoft VB. NET and ASP. NET criterion under the B/S(Browser-Server) thin client mode. In this mode, users could not only check real time data coming from remote field site, but could visit historical data just by a client browser. The result showed that this system provided a flexible solution to solve the bottle-neck problem of so called "final one kilometer" phenomenon for web based application of agricultural information communication.
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