SYSTEM AND METHOD FOR DETERMINING LOCATION, DIRECTIONALITY, AND VELOCITY OF RFID TAGS
摘要
<p>In certain embodiments, a method for tracking tags includes transmitting wake-up signals from a number of activation antennas located throughout an environment. Each wake-up signal includes an antenna ID of the antenna that transmitted the wake-up signal. A plurality of identification signals are received from a tag, each identification signal generated in response to receipt by the tag of a wake- up signal from a corresponding antenna and including a tag ID of the tag and the antenna ID included in the wake-up signal of the antenna that transmitted the wake-up signal. A directionality of the tag is determined based on the sequence in which the plurality of identification signals are received from the tag.</p>
申请公布号
WO2007103254(A2)
申请公布日期
2007.09.13
申请号
WO2007US05497
申请日期
2007.03.02
申请人
AXCESS INTERNATIONAL INC.;BEBER, MICHAEL, H.;KLINKE, MICHAEL, A.;BRIDGELALL, RAJINDER