| 摘要 |
A connection method for being used to avoid obstacles and perform automatic charging by a movable robot using anisotropic ultrasonic wave sensors is provided to use anisotropic ultrasonic wave sensors having optical directivity of 150 degrees to 180 degrees and having a range in 30 degrees to 60 degrees such that unnecessary signals are not received. A movable robot switches to a self-control charging mode if battery power is consumed. The movable robot transmits codes to a trigger signal transmitter in order to request the operation of the anisotropic ultrasonic wave sensors. A trigger signal receiver of a charging device receives a trigger signal to deliver the trigger signal to a micro-processor(S200). The micro-processor determines the codes to select and operate the anisotropic ultrasonic wave sensors(S203,S204).
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