Abstract
Remote monitoring systems based on Web-server-embedded technology and mobile telecommunication will become a core node technology in sensing network construction because of a great deal of mobile users and spreads of digital services in next generation telecommunication in the world. Soil, environmental, and crop information monitoring are important in production management and decision-making in precision agriculture. Therefore, reliability, security and inexpensive characteristics required are essential in the crop field information monitoring. Three improved field monitoring servers (FMS) using code division multiple access (CDMA) services combined with IPsec-based virtual private network (VPN) function have installed to two rice practical fields in Shanghai and one maize experimental field in Beijing for constructing a remote wireless sensing network. This crop field remote monitoring system as a ubiquitous node infrastructure in wireless sensing networks is useful and powerful to collect soil, environment, and crop information in remote for precision agriculture via two-years testing
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