SYSTEM AND METHOD USING PROXIMITY DETECTION FOR REDUCING CART ALARMS AND INCREASING SENSITIVITY IN AN EAS SYSTEM WITH METAL SHIELDING DETECTION

摘要

A system for detecting electronic anti-theft monitoring ("EAS") marker shielding includes an EAS subsystem, a metal detector, an object detector, a timer, a cart detection subsystem and a processor. The EAS subsystem is operable to detect EAS markers in the detection area. The metal detector is operable to detect a metal object in the detection area. The object detector is operable to detect objects located close to the entry point of the EAS subsystem. The timer is programmed to start the countdown sequence upon receipt of a signal generated by the object detector. The cart detection subsystem includes a sensor array. The cart detection subsystem is operable to detect a wheeled device passing through the check area based on the output of the sensor array. The processor is electrically connected to the EAS subsystem, the metal detector, the object detector, the timer and the cart detection subsystem. The processor is configured to receive a signal from an object detector and timer that initiates collection of information output from the cart detection subsystem and information output from the metal detector to determine whether to generate an alert signal based on the presence of the EAS marker shield do.