Vehicle tracking unit having a self diagnostic mode and related methods
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 9, 2004
Grant Date -
Nov 21, 2002
app pub date -
Mar 25, 2002
filing date -
May 17, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vehicle tracking unit may include a vehicle position determining device, a wireless communications device, and a controller cooperating with the wireless communications device and the vehicle position determining device for sending vehicle position information to a monitoring station. Furthermore, the vehicle tracking unit may also include at least one local diagnostic indicator connected to the controller, and the controller may include a plurality of output driver circuits for respective vehicle devices. The controller may be switch able to a diagnostic mode wherein at least one output driver circuit is tested, and results thereof may be indicated by the at least one local diagnostic indicator.
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