Core Ontology for Robotics and Automation
IEEE 1872-2015 standard defining core robotics concepts — robots, systems, environments, tasks.
Visit WebsiteBrowse the tree, filter it, or click any class to see just its corner of it.
Where this one tends to earn its keep.
Robot capability description and matching
Multi-robot system coordination
Robotic task planning and allocation
Industrial robot interoperability
I haven't checked this label against the actual licence text — it's the catalogue's original guess. Check the ontology's own site before you rely on it.
Others worth a look in Robotics.