Robot system and control method thereof

摘要

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.

主权项

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, wherein
the robot judges whether or not the robot is located in a docking region,the robot controls driving of the infrared emission unit to emit infrared rays when it is judged that the robot is located in the 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, andthe robot measures times taken for each of the ultrasonic waves oscillated from the ultrasonic oscillation units of the charging station to reach the ultrasonic detection unit of the robot, calculates a distance between the robot and the charging station based on the measured times, and performs docking with the charging station based on the calculated distance.