Global positioning system log with low power consumption
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United States of America Patent
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Aug 31, 2010
Grant Date -
Feb 25, 2010
app pub date -
Aug 21, 2008
filing date -
Aug 21, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A global positioning system (GPS) log with low power consumption has an antenna, a GPS module, a power control module, a main control module, a power adjusting unit and a memory. The main control module is connected to the GPS module and the power control module to retrieve the computing results of the GPS module and controls the power control module to periodically provide power to the GPS module according to a predetermined and variable power providing period. The power adjusting unit is connected to the main control module, analyzes the computing results of the GPS module and assists the main control module to adjust the power providing period. Since the main control module automatically adjusts the power providing period, the GPS log does not deplete unnecessary power on the GPS module. Therefore, the power consumption of the GPS log is reduced and the GPS operates longer.
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