Non-contact motion detection sensor utilizing distance and intensity statistics
US12078725B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2022 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | Jul 14, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2203/044
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus and associated methods relate to detecting jams when an intensity of a reflected signal exceeds a predetermined intensity threshold and an intensity window metric based on historic intensity value(s) fails to exceed an intensity window threshold for more than a predetermined time threshold. In an illustrative example, a jam detection unit (JDU) may emit a signal and detect a reflection of the signal. The JDU may, for example, compare intensity of the reflected signal to the intensity threshold. The JDU, for example, may compare the intensity threshold with at least one historic intensity value to determine the intensity window metric. If the intensity value exceeds the intensity threshold and the intensity window metric has not exceeded the intensity window threshold for longer than the time threshold, then the JDU may, for example, generate a jam signal. Various embodiments may advantageously detect jams based on intensity of a reflected signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.