RADIO TAG COMMUNICATION DEVICE

摘要

A radio tag communication device capable of performing information communication with a plurality of radio tags in parallel. The radio tag communication device includes a received signal processing section (54) for separating the response signals from the radio tags (14) included in received signals on the basis of the received signals received by a plurality of antennas (18) from a predetermined relation and an information communication control unit (50) for performing first communication with the radio tags (14) in parallel and reducing radio tags (14) targeted for second communication, if the number of radio tags (14) is judged to be more than separable maximum number when the received signal processing section (54) separates the response signals from the radio tags (14) included in the received signals corresponding to the first communication. From this, suitable information communication can be continued with the radio tags (14) by reducing the radio tags (14) targeted for the second communication subsequent to the first communication.