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MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
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the NOC. After the NOC receives the information, it sends the information to the Trailer Tracks
Web Portal. The GPS satellite constellation is used for location determination.
What is the Trailer Tracks Service?
The Trailer Tracks service is networking technology
and
hardware components installed on a
customer’s trailer. The hardware works to send information to customers over a cellular network
and also computes trailer location information using GPS technology.
The GPS and Cellular Network Systems
The TT150 system uses GPS to locate the trailer and a cellular network to deliver
information about the trailer to the customer.
The Global Positioning System
The Global Positioning System (GPS) is a worldwide radio-navigation system formed from a
constellation of satellites and ground stations. GPS uses the satellites as reference points to
calculate positions accurate within a few meters.
How the TT150 System Uses GPS
Signals received from at least four GPS satellites determine the TT150 system terminal’s
(i.e., trailer’s) location. The GPS receiver resides inside the TT150 system terminal to
determine the trailer’s position. The GPS receiver calculates the trailer’s location based on
the time that signals are received from the various satellites. The trailer’s location is sent
each time it communicates and is then available on the Trailer Tracks Web Portal.
The location data is retrieved automatically at regular intervals or can be requested at any
time.
The Terrestrial Wireless Network
The TT150 system uses digital technology to track customers’ trailers over a cellular
network. The TT150 terminal consist of a microprocessor, a wireless modem module, data
storage, antenna, and rechargeable battery.
