摘要
介绍了一种基于超高频RFID的物联网前端感知系统的设计和实现,以及主要模块的功能,然后分别从硬件结构,工作流程和软件设计三个方面进行了详细阐述。本系统的工作频率在860～960 MHz可调节,能支持EPC Gen2和ISO/IEC 18000-6B/6C标准。它的射频前端是以射频芯片AS3992为核心,使用内部集成的功放,外加一系列外围电路实现。其优点是体积小、重量轻、集成度高和功耗低。实验结果表明,该系统的读写距离能达到2.5m,能够满足实际应用的需要。
A system design and realization of the front - end apperceiving of internet of things based on UHF RFID, and the function of its main modules are introduced. The hardware ,working flow and design of software are elaborated. The system＇s working frequency is adjustable between 860 -960MHz, supporting the standards of EPC Gen2 and ISO/IEC 18000 -6B/6C. RF chip AS3992 is used as main part ,with the internal PA which integrated on the RF chip, and some peripheral circuits, the RF front - end of the system. The advantages of this system are small size,light weight, high integration and low cost. The realization result shows that the system＇s communication distance can get 2.5 m, meeting the practical application need.
出处
《世界科技研究与发展》
CSCD
2012年第5期754-756,765,共4页
World Sci-Tech R&D
基金
中央高校基本科研业务费(CDJZR10160008
CDJRC11160003)
重庆市教委科学技术研究项目(KJ122203)资助
