Locking/unlocking device, locking/unlocking method, and locking/unlocking system
US11920377B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2018 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B2047/0091
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Provided is a locking/unlocking device that accurately detects an opening/closing state of an opening/closing device and optimizes timing to lock or unlock.The locking/unlocking device includes a drive unit that drives a lock mechanism of the opening/closing device, a magnetic detection unit that detects a change in a magnetic field based on a change in the relative position between a movable section and a fixed section of the opening/closing device, and a control unit that determines an open/closed state of the opening/closing device on the basis of the change in the magnetic field detected by the magnetic detection unit and activates the drive unit to lock or unlock the lock mechanism on the basis of the open/closed state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.