Smart shelf with self calibration
US10762411B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2019 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Mar 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/0833
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system that performs self-calibration for tracking packages includes a frame providing storage locations for storing items, radio frequency identification (RFID) tags disposed in the storage locations, and an RFID antenna(s). The system determines a distance between each RFID tag and the RFID antenna(s) and monitors signal characteristics from each RFID tag. For each RFID tag, the system generates (i) at least one first parameter indicative of an environmental condition(s) at a location of the RFID tag and (ii) at least one second parameter indicative of a response rate behavior of the RFID tag, based on the signal characteristics and the distance between the RFID tag and the RFID antenna(s). The system tracks an RFID tagged item located in one of the storage locations based at least in part on the first and second parameter(s) for each of the RFID tags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.