Emperor Hotel has robots as its waiters and waitresses, which can lead guests to their rooms. Guests can also set an electronic room card on their mobile phones for taking elevators and opening doors. They can change the scenarios in the rooms via voice control, and the bathroom is equipped with atomized glass, to create a better stay experience. Guests can also inform the receptionists and then robots will bring them daily necessities. In this way, the hotel meets the demands of guests efficiently.