基于AVR单片机的125kHz简易RFID阅读器设计
基于AVR单片机的125
敖 华1,陈渊睿1’2,骆祖国1,李婷1
510640)
(1.华南理工大学电力学院,广东广州510640;2.华南理工大学亚热带建筑科学国家重点实验室,广东广州
摘 要:射频识别技术已广泛应用于生产,生活的众多领域,该技术给人们的生活带来了众多的方便。介绍一种以AVR
kHZ
单片机为核心,并利用分立元件构成的125 RFID阅读器设计,电路结构简单、无需读卡基站芯片、成本极低,用于读取
EM41001D卡,读卡距离可达8~15
EM4100卡进行解码的软件设计方法。实验验证了方案的可行性和系统的稳定性,可将其应用于门禁,公交等系统中。
关键词:AVR单片机;RFID;阅读器;EM4100
中图分类号:TP368 文献标识码:A 文章编号:1004-373X()07-0111-04
of 125kHzRFIDReaderwithAVR
DesignSimple SingleChipComputer
AO
Hual,CHENYuan-ruil”,LUOTin91
Zu—gu01,LI
(1.ElectricPower China of
College。SouthUniversityTechnology,Guangzhou510640,China;
2.State of Science,SouthChina of 510640,China)
KeyLaboratorySubtropicalBuilding UniversityTechnology。Guangzhou
Abstract:Theofradio identificationhasbeen usedin fieldsof and life,
technologyfrequency widely many productiondaily
andithas for 125kHzRFIDreaderwas basedonAVRmicrocontroller,whichalso
convenience
brought people.A designed
discrete structureofthecircuitis notneedareadbasestationIC,andhaslow
employedcomponents.The verysimple,does
iswellsuitabletotheread withEM4100ID its distanceiSabout8~15 structure
cost.It operation card,andreading em.The
and ofEM4100IDcardareintroduced.Asoftwaremethodof AVRmicrocontrollertode—
operationprinciple design adopting
codeEM4100is the andthe ofthe canbeusedin
the of stabilitysystem.It