Method and distance detecting device for detecting the projected distance between a distance measuring device and an obstacle
US7545484B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2004 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Jun 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/937
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to method and a device for determining the projected distance between a distance measuring device and a nearest point on the surface of an obstacle, the projected distance between said point and the distance measuring device being fundamentally the shortest in relation to all points of the obstacle. The aim of the invention is to be able to calculate the current distance between the nearest point and the distance measuring device, when the point P is no longer inside the detection region of the distance measuring device. According to the invention, the calculation of the projected distance is based on information about the relative movement of the distance measuring device and the obstacle, and on a defined limiting distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.