Power conserving mobile transmitter used with an automated barrier operating system

摘要

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.