Power conserving mobile transmitter used with an automated barrier operating system
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United States of America Patent
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Dec 27, 2011
Grant Date -
Feb 25, 2010
app pub date -
Aug 20, 2008
filing date -
Aug 20, 2008
priority date (Note) -
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Abstract
An operator system for automatically controlling access barriers based on movement of a carrying device. The system consists of an operator controller associated with an access barrier, a base receiver associated with the base controller, and a mobile transmitter that includes an activity sensor configured to monitor movement in at least one axis of movement and a mobile emitter. The mobile transmitter is configured to automatically emit from the mobile emitter a mobile open signal and a mobile close signal containing at least one warning data bit that is placed in a set state when the activity sensor first detects a change in movement of the mobile transmitter. The base receiver receives the mobile open signal and mobile close signal, and the operator controller resets a last process variable when the at least one warning bit is received.
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