PURPOSE: To make the title system useful as an information source for recovering a reported card (missing card) by prohibiting a room entering when the card is operated, reporting to an operator that the card is operated, and displaying it.

CONSTITUTION: When an ID card α is used after the ID card α is registered as the reported card, an ID code read by a card reader and the previously stored ID code of the reported card α are collated, and when it is found out that the two ID codes are coincident from the collated result, a door gate terminal A never outputs a control signal to an electrical lock 7, and it never unlocks the electrical lock 7. At the same time, it is reported that the ID card α is used at the door gate terminal A through a transmission line 4 to a center device 1, and the contents of the report are displayed on an indicator 2. As the result, it is reported that the missing ID card α is used at the door gate A with somebody's hand to the operator. This, it can be confirmed when and where the missing card is used, and it can be useful as the information for recovering the card, etc.