Run-time knowledge providers¶

This page lists the nodes that provide facts to the robot’s knowledge base at run-time.

`people_facts`¶

people_facts is a knowledge provider that interface with the social perception pipeline of the robot to store symbolic facts about the humans detected by the robot.

For each detected person with unique ID person_id, the following facts are stored:

person_id rdf:type Human
person_id currentlyTracked <true|false>
person_id hasEngagementLevel <level>, with level one of engaging, engaged, disengaging, disengaged