Method of controlling a robot through a singularity

Details Method of controlling a robot through a singularity Method of controlling a robot through a singularity

2005-01-18

2005-01-18

Black, Thomas G. (Department: 3661)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Robot control

C700S246000, C700S247000, C700S248000, C700S249000, C700S250000, C700S251000, C700S252000, C700S253000, C700S254000, C700S255000, C700S256000, C700S257000, C700S258000, C700S259000, C318S568110, C318S568120, C318S568130, C318S568140, C318S568150, C318S568160, C318S568170, C219S121610, C219S121620, C219S121630, C219S121640, C219S125110, C219S125120, C901S002000, C901S008000, C901S009000, C901S016000, C901S023000

Reexamination Certificate

active

06845295

ABSTRACT:
A method of controlling a robot (32) includes the steps of selecting an initial configuration from at least one of a first, second, and third sets to position a TCP at a starting point (44) along a path (33) and selecting a final configuration different than the initial configuration to position the TCP at an ending point (46). Next, the TCP moves from the starting point (44) while maintaining the initial configuration, approaches the singularity between a first point (48) and a second point (50), and selects one of the axes in response to reaching the first point (48). The angle for the selected axis is interpolated from the first point (48) to the second point (50). After the interpolation, the angles about the remaining axes are determined and positions the arms in the final configuration when the TCP reaches the second point (50) and moves to the ending point (46) while maintaining the final configuration.

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