Network Sensor System (NSS)
The NSS consists of a distributed network of devices that detect and report events to any number of GIS clients. Mouse over the images below to see an enlarged image and a description of each module.
The NSS consists of these three modules:
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Network Sensors transmit data when an Event occurs. The prototype Network Sensor (NS) has a laser and video camera attached to a 5' umbilical. When the laser beam is interrupted, the NS notifies the Sensor Bridge that an Event has occurred, captures a frame of video (a "still image"), and retains its logged data. These data are uploaded to the Sensor Bridge. An Event Indicator appears on the GIS Client Display. The User can display a satellite image representating the Event location, along with data transmitted by the Network Sensor. As of 2006, a video frame (rendered as a jpeg) and accelerometer signature data are provided.
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Sensor Bridge aggregates data from the Network Sensors. It can be hosted on any Internet-connected PC.
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GIS Clients (PCs) subscribe to data from one or more deployed Network Sensors via the Sensor Bridge.
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