LED object detection system and method combining complete reflection traces from individual narrow field-of-view channels
US8242476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2010 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Nov 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-channel LED object detection system and a method for detecting an object are provided. The method includes providing and orienting a light source having a wide field-of-illumination to encompass the width of the environment; providing and orienting a detector having a wide field-of-view to encompass the width of the environment, the detector having a plurality of sub-detectors with individual narrow field-of-views, driving the LED source into emitting light to illuminate the width of the environment; receiving and acquiring an individual complete trace of a reflection/backscatter of the emitted light on the object at each sub-detector; converting the acquired individual complete trace into an individual digital signal; and detecting and identifying a presence of an object, a position of the object, a distance between the object and the LED source and/or a visibility, using the emitted light waveform and an individual digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.