摘要
非接触卡根据射频电磁感应原理产生的[1],使用时无需任何接触,快捷、方便、不易损坏,因此广泛的应用于各个领域。文中从应用角度简单的介绍了由U2270B/T5557器件组成的一种低频非接触IC卡的读写系统、新型非接触IC卡T5557,并着重介绍了T5557的扩展功能。采用了曼彻斯特码对非接触IC卡T5557卡的读写进行了软件编程,确保实现读写器对非接触IC卡进行准确的读写。
Based on the theory of inductive electromagnetism, the contactless IC card is used in every field, it is eontactless,quick, convenience and durable when uses it . From the using aspect, introduces a low frequency read/write base station which is made up of T5557/U2270B, the new contactless IC card 33557 and its extended mode specially. Using manufacture code programs contactless IC card 33557, which makes sure read and write contactless IC correctly.
出处
《仪表技术与传感器》
CSCD
北大核心
2006年第1期41-42,45,共3页
Instrument Technique and Sensor
关键词
非接触式
读写器
T5557
Contactless
Read/Write Base Station
33557
