The long-distance conference sign-in system is based on the world’s currently most advanced high sensitivity contactless IC-card technology, detection distance over 1.2 meters. The participant only needs to carry the card with him/her. Sign-in occurs automatically when passing the registration gate in turn, no need to present the card for status identification. Significantly improved sign-in speed (about 1000 persons per 15 minutes possible). TAIDEN short-distance conference sign-in system - suitable for small size municipal and political consultative entities conferences - adopts the universal short-distance IC card reader technology, due to its simplicity and profitability.