Method and apparatus of detecting a position of a movable body
US6249743A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1999 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Dec 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/931
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The position of a movable body is detected by emitting a laser light in all the directions around a truck as the movable body by means of an optical unit including a laser oscillator and a CCD camera, receiving the laser light reflected by reflectors disposed at a plurality of positions in a moving area, and making comparisons between comparison data being different at each position of the truck in the moving area and reference data of the received-light data at the plurality of positions in the moving area. The comparison data is obtained from a received-light luminance distribution of the reflected laser light and an angle .theta. obtained by a gyrosensor relative to a reference direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.