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  "abstract": "A robot controller that can accurately determine whether a collaborative robot is in either a collaborative state or a non-collaborative state. The robot controller includes: an acquisitor acquiring a prescribed detection range from a detection device detecting the human present in the detection range; a range determinator determining whether the detection range acquired by the acquisitor includes a set range set for a collaborative robot collaborating with the human so as to include a predetermined range regarding the robot; a speed determinator determining a magnitude relationship between an operating speed of the collaborative robot and a first speed; and a collaborative state determinator determining whether the collaborative robot is in either the collaborative state of being operable with the human or the non-collaborative state of not being operable therewith when the human enters the predetermined range, based on determination results of the range determinator and speed determinator.",
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  "title": "Robot controller and robot control system",
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