摘要
在宠物管理系统中RFID读卡器是用来读取动物标签信息的,并将信息传输给上位机。RFID读卡器系统主要是由EM4095基站芯片和ATmega88单片机构成的,EM4095基站芯片发射载波并接收、解调标签返回的数据波形。根据ATmega88单片机具有的捕获功能,提出一种结合ISO11784/11785协议进行Biphase软件解码的方法,获得标签的数据信息。读卡器结构简单、工作稳定,有很好的通用性。
In the pet management system,the RFID card - reader is used to acquire the information of animal label and deliver the information to the computer. The RFID card - reader is mainly constituted by ATmega88 and EM4095. EM4095 can emit RF carrier and receive, demodulate the data wave of the card. A new way of software realization of Biphase decoding would come true by using of the capture function of ATmega88 according to the ISO11784/11785 protocol,and the data information of the card would be acquired. The structure of the card - reader is simple,and it works stably,so the card - reader can be used in many places.
出处
《现代电子技术》
2008年第12期61-62,68,共3页
Modern Electronics Technique
