| 摘要 |
PROBLEM TO BE SOLVED: To provide a system capable of detecting a location correctly even in a space wide like an exhibition site, sending the detected location information out to a personal digital assistant possessed by a visitor to an exhibition, and guiding the visitor to a booth being an aim. SOLUTION: The system is composed of wireless senders in which identification information for identifying visitors has been written beforehand, at least three receivers for reading the identification information sent from the wireless senders, a receiver-location database for holding the locations of the receivers in a site, and a server having a means for detecting, from the receiver-location database, the locations of receivers having received identification information, selects three receivers in higher order of a reception level from among a plurality of receivers having received an electric wave transmitted from a wireless sender, and specifies the location of the visitor considering that the sender exists within the area of a triangle formed by connecting the selected receivers respectively. When the visitor makes an access from his or her personal digital assistant to the server, the location of the visitor and the booth or store of the aim are displayed on the screen of the personal digital assistant of the visitor, and when the visitor enters the site, the visitor can recognize the locational relation between the location of the visitor and the booth or store of the aim. COPYRIGHT: (C)2006,JPO&NCIPI
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