：随着射频身份识别(RFID)技术应用在诸多新的领域，其防碰撞问题日显突出。文中介绍了RFID中标签防碰撞和阅读器防碰撞算法与技术的研究进展，并指出了这些算法的优缺点。-: With the radio frequency identification (RFID) technology in many new areas, its anti-collision problem more obvious each day. This paper introduces the RFID tag a