Inventory system for objects contained in a space bounded by an enclosure as well as an inventory method implemented by such an inventory system

摘要

An inventory system for objects contained in a space bounded by an enclosure, said system including a tag fixed to each of the objects to be inventoried and a reading point provided with at least one antenna for emitting a wakeup electromagnetic wave confined inside said enclosure so that a tag, on receiving same, becomes active and then emits its identification data intended for said reading point, wherein the system includes means for controlling the emission power of said wakeup electromagnetic wave in accordance with a power-variation model defined by a series of emissions by said or each antenna in stages at power levels different from one stage to another in order to carry out said inventory. The present invention also relates to an inventory method implemented by such an inventory system.