METHOD AND APPARATUS FOR ATTENUATING OF A BROADCASTING RECEIVED SIGNAL FOR ACHIEVING A BETTER DISTANCE RESOLUTION IN MONITORING SYSTEMS

摘要

A receiving unit (10) and method for determining the distance of an object (15) from a receiving unit (10) in a monitoring system, the receiving unit (10) receives transmitted signals, the receiving unit (10) comprises an attenuating unit (110) for attenuating the transmitted signals by a controlled factor; a receiver (120) for receiving and processing the transmitted signals into readable data; a microcontroller (130) for controlling the operation of the local monitoring unit; and an electronic circuitry (150) for calculating the received strength signal indication, whereby the distance of an object from the receiving unit can be determined