The seven-day long holiday of the Spring Festival is also the best time for hotel business. Some travelers will choose to stay in hotels on their way home for the New Year. The self-service check-in machine in the hotel has become the equipment with the best utilization rate. Its purpose is to replace the manual check-in procedure for passengers, which can realize fast check-in. Picture: Self-service check-in machine. Since most passengers do not check into the hotel together, it is possible to enter new passengers at any time of the day. There is no guarantee that there will always be people at the counter. Even if there are service personnel, they still need to shift work and increase the number of personnel. This adds to the cost. Moreover, manual check-in procedures are relatively slow, and passengers who want to rest early, but fail to do so, may complain to the staff. The self-check-in machine can be used to provide fast service for passengers 24 hours a day, simplify the procedures, and integrate the checkout, check-in, and check-out functions into one and play its own role. The self-service check-in machine is much faster than manual check-in, which saves travelers time for rest and improves the service image of the hotel.