Being the non-contact media central processing unit and the entrance retreating/quitting chamber management device, and non-contact media treatment manner and entrance retreating/quitting chamber management

摘要

PROBLEM TO BE SOLVED: To attain entrance/exit management having high security and reliability by changing a set mode in accordance with the communicating operation pattern of a non-contact medium (card) to be operated in a non-contact state. SOLUTION: An entrance/exit managing device has a non-contact ID card 11 provided with ID information to be used as a card key and is constituted so as to execute data communication by non-contact transmission/reception when the card 11 enters into the communication area 14 of a non-contact card reader 13 arranged in the vicinity of a door 12. A CPU 21 in the card reader 13 detects the communication frequency of communicating operation allowing a user to shield the communication area 14 by the same card 11 within a fixed time as an operation pattern and determines various setting modes to be used as card keys in each communication frequency. When a card is set up to three modes e.g. shielding once by the card 11 is an unlocking mode, twice is a locking mode and three times is a warning mode, the opening/closing of the door 12 is managed in accordance with the shielding frequency.