Determining a position of a mobile apparatus
US9046346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Jul 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C3/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of determining a position of a mobile apparatus includes: firing a laser mounted on the mobile apparatus; rotating the laser and a first and second photo detector that are disposed proximate the laser while monitoring an amount of rotation; detecting a first amplitude of light received by the first photo detector and a second amplitude of light received by a second photo detector as a function of rotation; identifying a first orientation corresponding to perpendicularity of the laser to a position referencing structure; identifying a second orientation corresponding to perpendicularity of the laser to the position referencing structure; identifying a third orientation corresponding to perpendicularity of the laser to the position referencing structure; and calculating the position of the mobile apparatus based on the first orientation, the second orientation, the third orientation, and a predetermined distance associated with the position referencing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.