Tamper detection mechanism for electronic lock device
US9624694B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 2, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | May 2, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05B39/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus and method for tamper detection of an electronic lock device using a capacitive proximity sensor. The capacitive proximity sensor is positioned on a printed circuit board that is positioned in an inner region of a housing of the electronic lock device. An electronic signal is transmitted to a conductive element, such as, for example, an area of a copper layer(s) or trace(s) on the printed circuit board. The transmitted electronic signal is monitored to determine a capacitance value. The capacitance value is evaluated to determine whether the capacitance value corresponds to known or predetermined capacitance values that are associated with a cover plate covering an opening of the inner region. In the event the capacitance value is determined to be outside of predetermined capacitance values, and signal may be generated to a reporting authority indicating the removal of the cover plate from the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.