RFID READING SYSTEM, RFID READING METHOD, RFID READER, RFID READING MANAGEMENT DEVICE, CONTROL PROGRAM FOR RFID READER, COMPUTER-READABLE INFORMATION RECORDING MEDIUM RECORDED WITH THE SAME, CONTROL PROGRAM FOR RFID READING MANAGEMENT DEVICE AND COMPUTER-READABLE INFORMATION RECORDING MEDIUM RECORDED WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an RFID reading system and method, reader, its control program, RFID reading management device and its control program and computer-readable information recording medium with their control programs recorded for performing accurate reading by preventing electromagnetic waves from interfering with each other.;SOLUTION: This RFID reading system is constituted of at least two readers and at least one RF tag, and those two readers are respectively provided with a transmitting part and a receiving part for performing radio communication with the RF tag and a CPU part for controlling the transmitting/receiving operations of the transmitting part and the receiving part. A response signal from an RF tag corresponding to the transmission of a question wave from one of the two readers to the RF tag is respectively received by the two readers, and the tag information from the RF tag based on the received two reception signals is acquired. Furthermore, it is possible to respond to the performance of the transmission of the question wave from one of the two readers, and to prevent the transmission of the question wave from the other reader in a fixed time in order to prevent their mutual interference.;COPYRIGHT: (C)2006,JPO&NCIPI