ROBOT SYSTEM AND CONTROL METHOD THEREOF
First Claim
1. A robot system comprising:
- a charging station including an infrared detection unit and ultrasonic oscillation units; and
a robot including an infrared emission unit and an ultrasonic detection unit, whereinthe robot controls driving of the infrared emission unit to emit infrared rays when the robot is located in a docking region,the infrared detection unit of the charging station detects the emitted infrared rays,the ultrasonic oscillation units of the charging station oscillate ultrasonic waves in response to the detected infrared rays,the ultrasonic detection unit of the robot detects the oscillated ultrasonic waves,the robot measures arrival times of the detected ultrasonic waves, calculates a distance from the charging station based on the measured arrival times, and performs docking with the charging station based on the calculated distance.
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Abstract
A robot system and a control method thereof in which, when a robot is located in a docking region, the robot calculates a distance by emitting infrared rays and detecting ultrasonic waves oscillated from a charging station, measures a distance from the charging station and performs docking with charging station. The distance between the robot and the charging station is precisely measured, thereby performing smooth and correct docking of the robot with the charging station. Further, the robot emits infrared rays only while performing docking with the charging station and thus reduces power consumption required for infrared ray emission, and wakes up a circuit in the charging station based on the infrared rays emitted from the robot and thus reduces power consumption of the charging station.
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Citations
18 Claims
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1. A robot system comprising:
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a charging station including an infrared detection unit and ultrasonic oscillation units; and a robot including an infrared emission unit and an ultrasonic detection unit, wherein the robot controls driving of the infrared emission unit to emit infrared rays when the robot is located in a docking region, the infrared detection unit of the charging station detects the emitted infrared rays, the ultrasonic oscillation units of the charging station oscillate ultrasonic waves in response to the detected infrared rays, the ultrasonic detection unit of the robot detects the oscillated ultrasonic waves, the robot measures arrival times of the detected ultrasonic waves, calculates a distance from the charging station based on the measured arrival times, and performs docking with the charging station based on the calculated distance. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control method comprising:
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judging whether or not a robot is located in a predetermined docking region; emitting infrared rays by the robot to a charging station upon judging that the robot is located in the docking region; detecting the emitted rays by the charging station; oscillating ultrasonic waves by the charging station upon detection of the emitted rays by the charging station detecting the oscillated ultrasonic waves by the robot; measuring arrival times of the detected ultrasonic waves; calculating a distance between the robot and the charging station based on the measured arrival times; and controlling movement of the robot based on the calculated distance to thereby dock the robot with the charging station. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification