Detecting interactions with storage units based on RFID signals and auxiliary signals
US12002337B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2022 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Nov 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2485
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Storage units including platforms that are outfitted with RFID antennas and auxiliary sensors detect changes in loading on the platforms based on changes in loading determined by the auxiliary sensors or changes in signals received by the RFID antennas. The platforms include surfaces for receiving items tagged with RFID transmitters thereon, such as items of common types and variable weights. An interaction involving the placement of an item on the platform, or the removal of the item from the platform, is detected by the auxiliary sensors. The energization of an RFID field is triggered in response to the detected interaction, and an item is identified where an RFID signal transmitted by the item is present at one time and absent at another time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.