CAJ | 학술논문

设计了一种基于AS3992的手持式超高频RFID阅读器。阅读器的射频收发电路由AS3992内部集成的射频模拟前端和协议处理系统构成，基带控制由S3C2440建立的最小系统实现。对AS3992射频模块电路进行了介绍，针对天线设计了阻抗匹配电路，对S3C2440外围电路进行了设计，同时设计了Linux系统下各硬件的驱动程序以及应用程序，最后对设计的阅读器进行了测试分析。结果表明，阅读器能支持ISO/IEC 18000?6C协议，并且具备了可手持、发射频率可调、功能易扩展等特点，满足智能物联网市场的需求，有非常好的应用前景。
설계료일충기우AS3992적수지식초고빈RFID열독기。열독기적사빈수발전로유AS3992내부집성적사빈모의전단화협의처리계통구성，기대공제유S3C2440건립적최소계통실현。대AS3992사빈모괴전로진행료개소，침대천선설계료조항필배전로，대S3C2440외위전로진행료설계，동시설계료Linux계통하각경건적구동정서이급응용정서，최후대설계적열독기진행료측시분석。결과표명，열독기능지지ISO/IEC 18000?6C협의，병차구비료가수지、발사빈솔가조、공능역확전등특점，만족지능물련망시장적수구，유비상호적응용전경。
A handheld UHF RFID reader was designed based on AS3992. Reader′s RF transceiver circuit is composed of RF analog front?end and protocol processing system,which are integrated in AS3992. The baseband is controlled by minimum system established by S3C2440. In this paper,AS3992 RF module circuit is introduced in detail. The impedance matching cir?cuit for antenna,peripheral circuits for S3C2440,as well as drive program and application program for hardwares under Linux system were designed. The reader was tested and analyzed. The results show that the reader which can support the ISO/IEC 18000?6C protocol has the characteristics such as handheld,frequency adjustment and easy expansion of function. The reader which can meet the intelligent IoT market′s demand has very good prospects.