| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a positional information detection system for visitors to facilities for making operations of the facilities satisfactory by promptly detecting positions of a lost child, etc., in the facilities such as an amusement park, a department store, a large-scale shopping center and an event hall where many people gather. <P>SOLUTION: Retrieval of the lost children is easily and exactly enabled since data intrinsic to an owner of an identification tag is included in data read from the identification tag held by the lost child when the owner of the identification tag lost one's way or something like that, by inputting identification data intrinsic to the owner in the identification tag when the visitor of the facility holds the identification tag. <P>COPYRIGHT: (C)2003,JPO</p> |
