摘要
设计了基于15693协议的射频识别读卡器系统。该系统以RC-632芯片为主控芯片。标签天线将磁场能量转换成电流,激活射频芯片并维持工作,然后接收读写器发出的命令,射频天线芯片作出应答。标签天线通过其本身负载的变化将标签信息反向调制在读卡器的天线上,经读写器天线传送到读写器,读写器对接收的信号进行解调和解码,最终将解码后的信息送到上位机系统。上位机处理器根据逻辑运算判断该卡的合法性,针对不同的设定作出相应的处理和控制,发出指令信号控制执行机关动作,从而实现读卡的功能。
In this paper, the RF card identification system is introduced which is based on 15693 agreement and adopts RC-632 chip as the main control chip. Tag antenna can converse magnetic energy to electricity, and activate the RF chip and maintain it working. Then the tag antenna receives a command from the reader. The RF antenna chip responses to it. Through the change of its load, the tag antenna makes reverse modulation of label information in the reader＇ s antenna. The reader receives, demudulates and decodes the signal which is transferred by the reader＇ s antenna, and eventually conveys the decoded information to PC system. According to the logic operation, PC processor judges the legitimacy of the card and makes response respectively in view of different settings with issuing instruction signal to control the action of enforcement authorities. Therefore, the reader will realize its function of reading card.
出处
《电视技术》
北大核心
2012年第3期29-31,共3页
Video Engineering
基金
山东省自然科学基金项目(ZR2009GM026)
