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Systems and methods for operating a tag

專利號(hào)
US11176335B2
公開日期
2021-11-16
申請(qǐng)人
Sensormatic Electronics, LLC(US FL Boca Raton)
發(fā)明人
Steve E. Trivelpiece; Craig E. Trivelpiece; Eric F. Riggert
IPC分類
G06K7/10; G06K19/07; G06K7/00
技術(shù)領(lǐng)域
tag,rfid,tags,tag's,or,in,e.g,reader,motion,wot
地域: FL FL Boca Raton

摘要

Systems and methods for operating a Radio Frequency Identification (“RFID”) tag. The methods comprise: monitoring a level of Radio Frequency (“RF”) energy being received by the RFID tag; performing operations by a circuit of the RFID tag to compare the level of RF energy in a given frequency band to a first threshold value; and transitioning an operational mode of the RFID tag from a first operational mode in which a receiver is disabled to a second operational mode in which the receiver is enabled, when the level of RF energy exceeds the first threshold value. The RFID tag is able to communicate with a remote tag reader when the RFID tag is in the second operational mode and not when the RFID tag is in the first operational mode.

說明書

The communication enabled device 204 is configured so that it: communicates (transmits and receives) in accordance with a time slot communication scheme; and selectively enables/disables the receiver based on output of a motion sensor 250. In some scenarios, the communication enabled device 204 selects: one or more time slots from a plurality of time slots based on the tag's unique identifier 224 (e.g., an Electronic Product Code (“EPC”)); and/or determines a Window Of Time (“WOT”) during which the communications circuit 206 is to be turned on subsequent to when motion is detected by the motion sensor 250. The WOT can be determined based on environmental conditions (e.g., humidity, temperature, time of day, relative distance to a location device (e.g., beacon or location tag), etc.) and/or system conditions (e.g., amount of traffic, interference occurrences, etc.). In this regard, the tag 200 can include additional sensors not shown in FIG. 2.

The communication enabled device 204 also facilitates the automatic and dynamic modification of item level information 226 that is being or is to be output from the tag 200 in response to certain trigger events. The trigger events can include, but are not limited to, the tag's arrival at a particular facility (e.g., RSF 128 of FIG. 1), the tag's arrival in a particular country or geographic region, a date occurrence, a time occurrence, a price change, and/or the reception of user instructions.

權(quán)利要求

1
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