Systems and methods for providing a tag with a miniature zero power motion detector and energy harvester
US10949723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2018 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Jul 1, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2417
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for operating a tag. The method comprising: causing motion of a spherical permanent magnet which is disposed and freely movable in a three dimensional internal space of a non-magnetic hollow sphere located within the tag; using the spherical permanent magnet's motion to cause a change in a magnetic flux in a wire wrapped around at least a portion of the non-magnetic hollow sphere, where the change in the magnetic flux induces a current in the wire; and supplying the current to at least one device of the tag's internal electronic devices that is configured to facilitate at least one of an inventory count and an inventory security.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.