[ros-users] Coordinating control conflicts

[김윤수]

Hi, rosers!

I'm curious about where and how coordination function of conflicting
controls
from various controllers is implemented in ROS stack.

I think that if we want to allow multiple controllers to be active
simultaneously,
we need some sort of coordination function somewhere. For example,
a robot can say Hi while gazing a person and carrying a load by manipulator.
Gazing may be controlled by a "face_tracking_controller" and/or carrying
may be controlled by a "carrier_controller" or something. These two
different
controllers may control different parts of a robot.

Does ROS allow multiple controllers to be active? If this is the case, where
and
how is coordination function implemented?

Thanks,

- Yoonsoo
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