Scheduling in an RFID system having a coordinated RFID tag reader array
US7817014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2005 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method of scheduling RFID tag interrogations by a plurality of RFID readers so as to mitigate the effects of interference within an RFID environment in which the readers are deployed, and to enhance the efficiency and reliability of the overall RFID system. The system includes a plurality of RFID receivers for receiving RFID tag data, a plurality of RFID tag interrogators for transmitting RF interrogation signals for interrogating RFID tags, and a controller for providing to at least one interrogator, at least one receiver, and at least one tag, a parameter associated with operational characteristics of the interrogator, the receiver, and the tag, respectively. The interrogator, the receiver, and the tag are operative, in response to receipt of the respective parameter, to modify its operational characteristics in accordance with the respective parameter, thereby avoiding interference at the receivers and the tags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.