ANTENNA CHANGEOVER SYSTEM IN STORAGE MANAGEMENT SYSTEM FOR FILE OF THE LIKE UTILIZING RF-ID

摘要

PROBLEM TO BE SOLVED: To provide an antenna changeover system that attains stable communication, reduces the cost of the entire system and relieves the load of the maintenance, without the need for a complicated mechanism and device for an antenna layout and switching drive method in the storage maintenance system for files or the like utilizing an RF-ID. SOLUTION: A data carrier reader/writer 2 is provided with a plurality of antennas 8 with respect to one antenna drive circuit 10 for communicating with each data carrier. An antenna changeover section 9 is connected to a read/write control section 11. A program for controlling monitoring and switching of a plurality of the antennas 8 sequentially via the antenna changeover section 9 is installed in the read/write control section 11, and each antenna 8 is sequentially selected when the antenna drive circuit 10 drives the antennas.