Movable devices
US9976853B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jul 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0274
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A movable device is provided. When the movable device is at a specific position, a range finder detects reflected light in a first field of view to generate first previous data. When the movable device returns to the vicinity of the specific position, the range finder detects reflected light in the first field of view to generate second previous data. The range finder detects reflected light in a second field of view to generate compensation data. The processor unit performs a SLAM operation on the first and second previous data to generate first and second previous maps, respectively. When a probability that the second previous map does not conform to the first previous map is greater than a threshold value, the processor unit performs the SLAM operation on specific data and the compensation data to control the moving path of the movable device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.