Method of controlling an intelligent assist device in a plurality of distinct workspaces
US6313595A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 23, 2001 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/40517
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of controlling a powered manipulator in a plurality of workspaces is disclosed. The manipulator includes a handle, a motor, a force sensor, and is in combination with a processor controlling the manipulator. The method includes the steps of imparting force on the control handle, sensing direction and magnitude of the force, and sending data of the force to the processor. The data is processed to establish movement commands for the manipulator. The processor is programmed to establish at least one virtual constraint in a first workspace for limiting movement of the manipulator to prevent an operator from moving the manipulator to a limit of this workspace. After the manipulator is moved in this workspace, the manipulator is relocated from the first workspace into a second workspace different from the first workspace where the manipulator is then moved again. To limit movement of the manipulator in the second workspace, the at least one virtual constraint established in the first workspace is repositioned to the second workspace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.