The baggage claim number. The airplane baggage carousel is the general display screen of the baggage carousel number corresponding to the flight, and the baggage carousel 9 is the baggage claim number. Many passengers pick up their luggage after the plane arrives in Hong Kong. In order to ensure convenient and fast baggage retrieval, the conveyor belt is designed as a ring. Passengers stood motionless beside the turntable, and luggage drove repeatedly on the turntable.