Patent ID: 8085129

Claim:
An operator system for automatically controlling access barriers based on movement of a carrying device, comprising: an operator controller associated with an access barrier; a base receiver associated with said base controller, said base receiver configured to only receive signals when in an operate mode; a mobile transmitter including an activity sensor configured to monitor movement in at least one axis of movement and a mobile emitter, said mobile transmitter configured to automatically emit from said 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 said activity sensor first detects a change in movement of said mobile transmitter, wherein said base receiver in said operate mode receives said mobile open signal and said mobile close signal and said operator controller resets a last process variable when said at least one warning bit is received and said operator controller controls movement of the access barrier based on the status of said at least one warning bit and receipt of said mobile open signal and said mobile close signal.