| 摘要 |
PROBLEM TO BE SOLVED: To prevent a memory from being used a lot by recording the detection information for one time even in the case that a non-contact type ID card is shaken at a communication limit and the detection and non-detection of the card are repeated. SOLUTION: In this method, at the time of detecting the non-contact type ID card 31 of a registered ID, an electronic lock 21 is released, releasing information is recorded and the ID of the ID card 31 is stored for required time. At the time of the stored ID by the comparison of the stored ID and the ID of the detected ID card 31 at the time of detecting the ID card 31, a releasing operation and the recording of the releasing information are not performed. |
