Positioning system of sweeper and positioning method of the positioning system
US9516984B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Aug 5, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L2201/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A positioning system comprises a sweeper and a positioning device arranged on a ceiling. The sweeper has a lighting component for emitting light. The positioning device at least has a height measuring unit and a plurality of light-sensitive units. The positioning device measures a vertical distance between the positioning device and a floor through the height measuring unit. The positioning device receives the light emitted from the emitting light of the sweeper through the light-sensitive units, and calculates an oblique distance between the positioning device and the sweeper based on different strengths of the light respectively received from each of the plurality of light-sensitive units. Therefore, the positioning device can calculates a parallel distance between the positioning device and the sweeper based on the vertical distance and the oblique distance, and further determines a related position of the sweeper opposite to the positioning device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.