| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system and a method for managing an entry into a room, which can be easily utilized by a user, and which permit the entry of only a person having the regular right to enter facilities. <P>SOLUTION: This system comprises: a lighting unit 1 which transmits a modulated door ID signal modulated by utilizing visible light for being applied to a preset irradiation range; a portable terminal 2 which is carried by the user, and which receives, modulates and wirelessly transmits the modulated door ID signal from the lighting unit 1; an authentication unit 3 which receives a door ID from the portable terminal 2 so as to determine whether or not the door ID is a regular one, and which generates unlocking instructions when determining that the door ID is the regular one; and a door 4 which is provided in the facilities for managing the entry into the room, and which is unlocked by receiving the unlocking instructions from the authentication unit 3. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
