(英) |
Sensor nodes to monitor agricultural production and Earth environments must be multifunctional, rugged and economical; Field Server is a Web-based sensor node, which consists of a measurement Web server, Wireless-LAN module, sensors (air-temperature, humidity, CO2 concentration and so on)., cameras, LED lighting, andsolar-cells Around Field Servers Wi-Fi hotspots are created, and Field Servers perform ad-hoc wireless networks by using mesh network, WDS or access point - client connection. Devices such as a measurement Web server, a camera, which work independently, are connected by Ethernet or Wireless LAN as a robust architecture. Fieldserver-Agent executes automatically data collection and control for devices such as cameras and LEDs. Collected data sets, which are combined by data-grid, MetBroker, are shred on a Web for common use. |