A gateway hello speaking voice output device which senses the direction of the person coming in and out

摘要

The present design is to output a voice greeting and then automatically detects the orientation of the chulipja; The device.; Here, as the direction of chulipja is also well garaneun greeting when leaving one after detecting incoming guests out whether customers perceive the Pyroelectric Infrared sense of the building guests; A device that outputs audio, and outputs the greeting that welcomes guests for an incoming voice.