物联网环境下的激光全息RFID多标签防碰撞方法  

Laser holographic RFID multi tag anti collision method in the environment of Internet of things

作　　者：吴文波 吴昌钱 WU Wenbo;WU Changqian(Minnan Science and Technology Institute,Quanzhou Fujian 362000,China)

机构地区：[1]闽南科技学院,福建泉州362000

出　　处：《激光杂志》2023年第12期231-234,共4页Laser Journal

基　　金：国家自然科学基金项目(No.61861021);福建省教育科学“十三五”规划(No.FJJKCG20-014);福建省本科教育教学改革项目(No.FBJG20200327)。

摘　　要：针对物联网RFID多标签防碰撞方法中数据采集量较少,导致数据采集效率低等问题,本文引用激光控制技术研究了一种新的激光全息RFID多标签防碰撞方法。依据标签的输出功率大小,计算多标签路径长度;根据需求将多标签路径长度按范围分类,小范围内计算每个标签极限路径长度,剔除相同路径长度的多标签;识别读写器的响应请求,根据自身信号波进行对应需求的扩频处理,初次发出一个帧长度的通信请求,读写器确认后,标签根据初次信号波进行通信。通过单片机、三极管以及激光驱动器完成标签响应电流控制,实现激光全息RFID多标签防碰撞。实验结果表明,本文设计激光全息RFID多标签防碰撞方法能够有效提高数据采集量,提升数据采集效率。In order to solve the problem of low efficiency of data acquisition in RFID multi tag anti-collision method of Internet of things,a new laser holographic RFID multi tag anti-collision method is studied by using laser control technology.According to the output power of tags,the path length of multi tags is calculated;According to the demand,the multi label path length is classified according to the range,the limit path length of each label is calculated in a small range,and the multi labels with the same path length are removed;Identify the response request of the reader,carry out the corresponding spread spectrum processing according to its own signal wave,and send a communication request of a frame length for the first time.After the reader confirms,the tag communicates according to the initial signal wave.The tag response current is controlled by single chip microcomputer,triode and laser driver,and the laser holographic RFID multi tag anti-collision is realized.The experimental results show that the design of laser holographic RFID multi tag anti-collision method can effectively improve the amount of data acquisition,improve the efficiency of data acquisition.

关 键 词：激光控制 物联网技术 射频识别技术 多标签防碰撞 

分 类 号：TN312[电子电信—物理电子学]