Encoder update by using regenerative power
US9555547B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2016 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jan 7, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S901/46
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A robotic system may include an incremental encoder coupled to a joint of the system. The robotic system may include a memory configured to store representations of angular positions of the joint. The robotic system may include a motor coupled to the joint, where rotation of the joint while the motor is powered off (i) causes rotation of the motor such that electric power is generated, and (ii) updates the angular position of the joint. The robotic system may use the electric power to power on the incremental encoder and the memory while the robotic system is powered off. One or more processors may obtain, when the robotic system powers on after being powered off, the updated angular position of the joint from the memory, where the incremental encoder provides the updated angular position to the memory while the robotic system is powered off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.