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Wireless pager teams up with GPS to perform multiple surveillance tasks
Feb 7, 2006 5:01 PM  By Steve Grossman, Editor

Trace Technologies LLC, has launched Trace Location Services, which enhances location accuracy, senses motion and also detects location when a preprogrammed perimeter is crossed. This technology uses Qualcomm Snaptrack GPS software that improves upon conventional GPS by combining from GPS satellites round trip delay and advance forward-link trilateralization to locate a device in environments that typically challenge conventional GPS-—such as buildings, urban canyons and dense foliage. Using this technology, Trace can provide an average of 20 dB to 30 dB greater sensitivity over other GPS location-based services.

Frequently, some of the four satellites that are normally in view from any point on Earth may be obscured by buildings or heavy clouds. When this occurs, the server supporting the Trace Location Service device improves upon the GPS data by evaluating the information fed from the last tower that was in touch with the device. That data is then fed to the customer's laptop or other computer, providing a more precise location than would otherwise be possible under such circumstances.

At the heart of Trace Technologies' new service is a small portable device just 3" x 2" x 1" that can be readily imbedded in a vehicle and operates on the wireless pager network. Potential customers include companies that want to track cargoes. In addition to pinpointing the device, a sensitive motion detector within it will send an alert over the Internet if it senses motion. This is invaluable for customers tracking vehicles and cargoes. As an example, a horse trailer is expensive and typically costs $150,000, so if the owner wants to know if the vehicle has been removed from an unattended lot, without authorization, the Trace Location Service can provide the information.

Another feature of this service is Geofencing, which enables the user to set the latitude and longitude of a location, and then instruct the device to issue an alert if the device detects that it has been moved either inside or outside a proscribed radius.

Trace Technologies is a subsidiary of Gabriel Technologies, LLC of Omaha, NE.


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