Measurement-value correction method for distance measuring device, and distance measuring device
US12066544B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2020 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Jun 22, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
At a preparatory step for correction, in a state that a reflective tape made with a retroreflective material is pasted in advance onto a floor surface of a measurement space in a direction away from the distance-measuring device, a distance La to an inside area of the reflective tape, and a distance Lb to an outside area of the reflective tape adjacent to the inside area are measured by the distance-measuring device, while measurement positions Y are being scanned along the reflective tape. A correction formula for converting the distance Lb to the distance La is created from a relationship between the distance La and the distance Lb obtained at each measurement position Y. At an actual measurement step, a distance (actual measurement value x) to the target object measured by the distance-measuring device is corrected in accordance with the correction formula, and a measurement-distance corrected value y is calculated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.