Methods for detecting sensor degradation in distance sensors
US9684068B2 · kind B2 · utility
3Cited by
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13Claims
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Key dates
| Filing date | Sep 24, 2013 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Jan 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2007/52009
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting a sensor degradation in distance sensors, having the following: a) sending out at least one transmit pulse; b) acquisition of a sensor signal at least in a decay interval; and c) determination of a degree of degradation based on a frequency response of the acquired sensor signal. Also described is a computer program product, a distance sensor unit, and a driver assistance system for carrying out such methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.