| 摘要 |
PURPOSE: An alarming device of a crosswalk is provided to call attention to pedestrians by informing an entry state of a vehicle inside a crosswalk with sound. CONSTITUTION: A first light emitting part comprises a plurality of laser light emitting devices installed vertically to a first post. Each light emitting device parallel outputs a laser toward a second post. A first light receiving part receives the laser outputted from the first post. A sound output part(50) outputs a sound. A control part(40) receives a signal about a signal light state from a signal light controller, and receives a signal about laser reception from the first light receiving part. |
