Automotive side object detection sensor blockage detection system and related techniques
US6611227B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2002 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | Aug 8, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/9322
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system is provided for detecting blockage of an automotive side object detection system (“SODS”). The system includes a blockage detection processor, which is operative to determine whether an RF leakage signal level sensed between transmit and receive antennas of the system substantially match one or more of a plurality of pattern recognition information curves. If it is determined that the leakage signal level substantially matches one or more of a plurality of pattern recognition information curves, a blocked condition of the SODS is declared, as may be caused by mud, salt, ice, etc. The blockage detection processor is further operative to determine whether the leakage signal exceeds a predetermined blockage threshold level. If the leakage exceeds the predetermined blockage threshold level, a blocked condition of the SODS is also declared.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.