Enhancement of recognition rate for large quantity documents in gate environment

In this research, it examined the large quantity document recognition in gate environment . Commercial tag with the best stable performance in documents environment have been chosen and the tag position in a document has also been carefully decided via extensive experiments. The gate has been made to achieve the best recognition performance and easy adjustment of the position of reader antennas with inserted Aluminum Profile in the gate. The number of the reader antennas has been doubled with power dividers to get rid of the shadow zones. Reader antennas have been shielded with metals to minimize interference. Moreover, we have developed a tag monitoring program for the optimization of reader antennapsilas position. It can distinguish the shadow zones and the weak tags. As a result of this research, we could recognize over 300 documents stably for the recognition of large quantity of documents.