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发明公开
CN102609670A 一种有源RFID卡片防碰撞系统及其防碰撞方法 无效 - 撤回

一种有源RFID卡片防碰撞系统及其防碰撞方法
摘要：
本发明提供一种有源RFID卡片防碰撞系统及其防碰撞方法，所述系统包括一读卡器以及与其相配合的至少一有源RFID卡片，所述读卡器包括相互间电连接的一寻卡模块、一发送应答信号模块、一接收卡片信号模块，所述读卡器还与一第一电源相连接，所述寻卡模块、发送应答信号模块、接收卡片信号模块均包括一第一单片机以及与其电连接的一第一射频电路，各所述第一单片机之间电连接且各所述第一单片机均连接到第一电源；所述有源RFID卡片包括相互间电连接的一第二单片机以及一第二射频电路，所述有源RFID卡片的第二单片机还连接一第二电源。本发明能够大大降低卡片的碰撞冲突的概率，并提高读卡速度。
摘要（英）：

The invention provides an active RFID (Radio Frequency Identification Device) card anti-collision system and an anti-collision method of the active RFID card anti-collision system. The system comprises a card reader and at least one active RFID card matched with the card reader; the card reader comprises a card searching module, an answer signal sending module and a card signal receiving module; the card reader is also connected with a first power supply; the card searching module, the answer signal sending module and the card signal receiving module respectively comprise a first singlechip and a first RF (radio frequency) circuit which is electrically connected with the first singlechip; the first singlechips are electrically connected; all the first singlechips are connected to the first power supply; the active RFID card comprises a second singlechip and a second RF circuit which are mutually and electrically connected; and the second singlechip of the active RFID card is also connected with a second power supply. According to the active RFID card anti-collision system and the anti-collision method of the active RFID card anti-collision system provided by the invention, the probability that the card is collided can be greatly reduced and the card reading speed is improved.

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