Patent attributes
In a room occupant monitoring system, if any ID information stored in a personal data storage section matches ID information on an entry applicant acquired from an ID storage medium by an information acquisition section and a number of room occupants detected based on results of permission for room entry and exit has reached a maximum number of persons detectable from a monitoring camera's video, a control unit of a server compares degrees of priority, which are stored in a storage section of the server, between the entry applicant and all the room occupants and (i) refuses permission for the entry applicant having a lower degree of priority than all the room occupants to enter the room or, (ii) if there is any room occupant having a lower degree of priority than the entry applicant, performs room exit request processing for requesting the lower-degree-of-priority room occupant to leave the room.