How did the hotel know there was another person in your room?

The hotel can find out whether there are extra people in the room by the following ways:

1. monitoring: the hotel can install monitoring equipment at the entrance, corridor and elevator of the room to monitor people and activities entering and leaving the room. Through the surveillance video, you can see if there are any extra people in the room.

2. Visitor registration: The hotel can require all visitors to register, including name, ID number, check-in time and other information. If the tourists are not registered or the registration information is inconsistent with the actual situation, the hotel may find that there is one more person in the room.

3. Room inspection: If necessary, the hotel can arrange staff to conduct routine inspection of the room to ensure that there are no illegal residents in the room. If extra people are found in the room, the hotel can ask them to leave the room or register legally.

4. Intelligent equipment: Some high-end hotels may use smart door locks, face recognition and other scientific and technological means to manage the access of rooms and people to enhance security and management efficiency. These devices can judge whether there are redundant people in the room by identifying the information of people entering and leaving.

In short, there are many ways for hotels to know whether there is an extra person in the room to ensure safety and management requirements.