| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a key determination system which makes the crime prevention of each room more excellent than in the case of a building having a mere electric lock system with no alarm section, even if the owner of a key loses the key and the key has been picked up by the third person, when the key determination system is provided in the building. <P>SOLUTION: A door of each room on the second floor or higher is provided with a door-side ID signal reception section 32 for receiving an ID signal indicating a room ID corresponding to the room, an ID controller 34, and an alarm buzzer 38. The key 43 corresponding to a cylinder lock provided in the door is provided. The key 43 has an ID signal transmission section 46 capable of transmitting the ID signal. The ID controller 34 makes the alarm buzzer 38 issue an alarm by actuating the alarm buzzer 38 when an abnormality occurs, that is, when it is determined that the room ID, which is indicated by the ID signal transmitted from the ID signal transmission section 46 and received by the door-side ID signal reception section 32, is not consistent with a prestored registered room ID. <P>COPYRIGHT: (C)2009,JPO&INPIT |
