| 摘要 |
PROBLEM TO BE SOLVED: To properly determine a level of interest of a consumer in an article.SOLUTION: A server control unit (5b) determines a level of interest of a consumer in a book (A) on the basis of an interruption state of radio communication (the number of communication interruption and the time of communication interruption) between an RFID tag (2) and an RFID reader/writer (3). For example, with this structure, the consumer takes a book (A) in his/her hand, the book (A) is taken out from a display space, and as the RFID tag (2) attached to the book (A) is taken out of a proximity range, the radio communication between the RFID tag (2) and the RFID reader/writer (3) is interrupted. Thus, according to the interruption state of the radio communication, it is possible to properly determine the interest of consumer in the book (A). |
