The objective of the SensorWebs project is to identify, develop, and implement wireless technology for distributed sensing and actuation in horticultural environments. The heart of the sensor web system is the "node", a low cost, self contained unit that contains a radio, a microprocessor, and the ability to interface to a number of sensing and actuation devices. Networking software allows deployed nodes to automatically find each other and create paths to route collected data and actuation commands to and from a central location. The result is an inexpensive, easily installed system that allows for the collection of environmental data over a distributed area and allows for the remote (or even automatic) actuation of sprinklers, fans, heaters, and other devices.

The current generation of sensor web technology was installed at Lancaster Farms in Suffolk, VA.in September of 2003. The existing system consists of 18 nodes distributed over an area of approximately 10 acres. Nodes are deployed in a variety of environments including open air "Flat Top" locations, enclosed greenhouses, and "Propagation Houses", which may be open air, covered in shade cloth, or enclosed in plastic sheeting of varying opacity. Data collected by the nodes is automatically routed into a central data base where it can be viewed and analyzed.
 

Click to see the live data from  Lancaster Farms deployment