Method and device for detecting breakage of window glass
US10977912B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2020 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Aug 13, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R25/34
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The invention provides a method and a device for detecting breakage of window glass. The device includes a signal generator and a signal receiver. The method includes: controlling the control signal generator to send out a source signal if the door is locked; using the signal receiver for receiving the source signal at the first time; determining whether a signal strength of the source signal exceeds a first threshold; controlling the device to enter a window breakage monitoring mode if the first threshold is exceeded; using the signal receiver for receiving the source signal which is sent by the signal generator at the second time; determining whether a signal strength of the source signal sent at the second time exceeds a second threshold; performing a preset first alarm operation if the second threshold is exceeded. This method has high accuracy and high reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.