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TD-SCDMA和WEB技术的农田数据采集和信息发布方案。利用CAN总线实现传感器网络,构建基于WinCE的农田现场数据采集系统;通过TD-SCDMA技术建立农田现场采集系统与数据中心的远程无线连接,将采集信息实时发送到数据中心;数据中心提供多种服务,通过浏览器即可实时查询各种数据记录。方案采用TD-SCDMA/GSM双模通信模块,该模块在没有TD-SCDMA网络覆盖的环境下,可以自动切换到GSM网络,从而综合了TD-SCDMA速度快与GSM覆盖广的优点,提高了系统的适应性与数据传输速率。该系统的实现为农业信息通信中"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 diversity,variability,obscurity and decentralization of agricultural object,a solution to field data acquisition and information dissemination based on TD-SCDMA and WEB technology is proposed in this article.We utilized CAN bus to implement sensor network,and built a system of fields data acquisition with WinCE as its OS.The TD-SCDMA is used to implement the remote wireless communication connection between the system and Data Service Center,and the field data are transferred to Data Service Center in real time.The Data Service Center provides a kind of services,including querying a variety of real-time data through a browser.This scheme adopted TD-SCDMA/GSM dual mode communication modules,which can automatically switch to GSM network when the TD-SCDMA network is not available.So TD-SCDMA＇s speed advantages and GSM＇s wide coverage can be combined to improve the system adaptation and data transfer rate.This system provided a convenient solution to the bottleneck problem of ＂last mile＂ in agricultural information communications.
出处
《仪表技术》
2010年第6期44-46,共3页
Instrumentation Technology
