Wireless signal receiver

摘要

Information optimal for a place where a user is located is provided to the user by specifying the place in a short range using RFID tags and a terminal which the user holds. To accomplish this, an RFID reader-equipped information terminal performs a process of reading RFID tags attached to arbitrary places a predetermined number of times per unit time and automatically measures a distance between the RFID reader-equipped information terminal and each RFID tag based on the number of times each responding RFID tag has been able to be read. A position at which the user is located is specified based on the automatically measured distance and information suitable for the position is then provided to the user.