摘要
本无线识别系统的设计利用射频技术,阅读器将呼叫信号加载到频率为70MHZ的射频上,以无线方式发给应答器。呼叫信号经过线圈耦合、解调、电压比较器等电路传送到应答器的控制器。控制器对呼叫信号进行分析、确认后,将存储的四位二进制编码通过发送端的调制电路馈送到阅读器,并显示应答器的具体信息。
Using radio frequency technique, the reader machine will load call signal into70MHz radio frequency, and send to response machine wirelessly. The call signal will be sent to the control of response machine by circuit coupling, demodulation, and voltage comparator. The control will analyze and identify the call signal, send the stored 4 - bit binary code back to the reader machine by transmitting modulation circuit, and display the detail of response machine.
出处
《吉林工程技术师范学院学报》
2009年第4期69-71,共3页
Journal of Jilin Engineering Normal University
关键词
射频技术
线圈耦合
低功耗单片机
铁电存储器
radio frequency technique
circuit coupling
low - cost single - chip machine
ferroelectric memory
