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关键词： Students  

摘要： Based on the antimetal RFID tag model, a sports equipment batch management system is established. The establishment process of the model and system is discussed in detail, and the principle of metal-resistant RFID tag is revealed. Then, the antimetal RFID tag sports equipment batch management system is applied to colleges, middle schools, and primary schools, and the use of teachers and students on the efficiency of sports equipment batch management is studied, highlighting the advantages of the management system. In general, the antimetal RFID tag sports equipment batch management system has timeliness, universality, and reliability. It can adapt to the sports equipment management of different schools, improve its management efficiency, and play a positive role in the development of modern school sports.

关键词： Radio frequency identification (RFID)  

摘要： RFID can automatically read the information stored on the tag. When multiple tags send data to the reader and writer at the same time, multiple tag collision will occur, resulting in the reader and writer being unable to successfully identify the tag. To solve this problem, an RFID multitag identification method based on decision tree is proposed. The Manchester code is used to represent different level states of voltage. The reader extracts the collision bits in the tag ID by using the Manchester code, and these collision bits form the new tag ID. In the process of decision tree search, the "XOR" command operation is added, and the query prefix is selectively sent to the tag to mark all collision bits. The process will continue until one tag is identified;then, reset the remaining unrecognized tags and continue to participate in a new round of identification. The simulation results show that the RFID multitag identification method based on decision tree can reduce the time complexity and communication overhead and improve the throughput, so it has high search efficiency.

关键词： Chipless tag   radio frequency identification   radar cross section   frequency signature   backscattering  

摘要： In this paper a novel, compact 10-bit chipless radio frequency identification (RFID) tag with stable readable characteristics is proposed. The tag is composed of several concentric novel kite-shaped loop resonators. The desired data sequence is obtained by the insertion or removal of nested elements, offering a 1:1 data bit to resonance correspondence. Each data sequence is encoded in the spectral domain of the tag. The proposed tag shows operability at different polarizations and incident angles of the impinging electromagnetic waves. Operating within the ultra-wideband (UWB), the tag is realized on the Roger RT/duroid 5880 substrate having physical dimensions of 13.55 x 13.55 mm(2). The measurement results of the design reveal a high code density and spectral efficiency of 5.44 bits/cm(2) and 2 bits/GHz, respectively. The compact and robust passive chipless RFID tag having scalable data storage potential can be deployed in numerous low-profile applications such as those of wearable and healthcare.

关键词： 安措操作   RFID标签   自动出票   可视化指引  

摘要： 针对目前变电站安全措施出票难,操作时需要查找大量图样来确定操作对象,以及屏柜内操作对象的标签标识密集查找不便、容易走错间隔等问题,采用二次回路建模方法,研制基于无源RFID标签的安措可视化操作指引系统,研究安措票自动生成技术,并生成对应指引方案。同时通过RFID阅读器控制RFID标签上的LED灯状态来指引操作人员进行安措操作。提升了安措操作的效率和准确性,对变电站的安全可靠运行具有重要意义。

关键词： 射频识别   物理层防冲突   Viterbi算法   Miller码   标签冲突  

摘要： 在超高频(Ultra High Frequency,UHF)无线射频识别(Radio Frequency Identification,RFID)系统中,当多个标签同时向阅读器发送数据就会发生标签冲突,在介质访问控制(Media Access Control,MAC)层防冲突效率较低,采用物理层分离解码算法可有效提高该系统的吞吐量。特别地,由于Miller码拥有比FM0码更多的副载波,具有更高的抗噪声性能,因此提出了一种物理层分离的最大似然Miller解码方法,用于优化传统Miller解码。该方法聚类并确定各簇对应标签排列情况以分离标签信号,再用最大似然的Viterbi解码完成冲突信号的识别。实验中,仿真数据结果表明,该算法在低信噪比下,分离效率高于传统解码方法约20%;实测数据结果表明,该算法嵌入至动态帧ALOHA系统中,吞吐量达到0.55,高于传统理论最优值0.37。

关键词： 物联网   RFID   医疗物联网   设备管理   室内定位  

摘要： 随着物联网的发展,各种设备和传感器可以通过互连相互通信并共享数据,改变了传统医院的运营模式。在医院的各种复杂流程中,感知服务和应用程序可以提高护理质量并降低成本。由于医院所占面积较大,因此存在设备调用,路线指引等问题,需要对设备和人员的位置进行定位。为了解决该问题,在此利用物联网中的无线传感器,设计了一个基于RFID的室内定位算法。该方法采用被动式RFID技术,将标签安装在地板和几个外设上,实现对医疗设备的定位和管理。通过实验表明,该方法的定位精度在12 cm左右。

关键词： RFID玻璃管标签   锦鲤   电子编码   效果   生物影响  

摘要： 优良的血统是锦鲤品相及价值等级的重要保证,对锦鲤进行寻踪溯源是明确其身份的有效手段。本文采用特定编码的RFID玻璃管标签体内注射的方法对锦鲤进行了标记试验,研究了RFID玻璃管标签作为标记对锦鲤的摄食和生理活动的影响,结果表明,RFID玻璃管标签不会影响锦鲤的摄食等行为。本研究认为RFID玻璃管标签作为锦鲤的溯源标志方法,具有创伤性小、不影响锦鲤外观及其商用价值且容易辨别等优点,具备较高的推广应用价值。

关键词： 无线射频识别   通关检测   信息匹配   程序设计  

摘要： 针对现阶段海关监管卡口中货车通关效率低的问题,提出了基于RFID技术的信息检测方案,并设计了一种基于RFID技术的货车快速通关检测系统。通过非接触、被动式检测在尽可能减少停车次数甚至不停车的情况下完成对货车和货物信息的采集与匹配,从而减少卡口的交通拥堵、降低人力检测成本以及保障货车和货物信息的准确性。最后,通过实验对其进行了分析与验证。实验结果表明,该系统具有检测准确度高、监测实时性强以及自动化程度高等优点,符合未来智慧交通发展的趋势。

关键词： 涉案财物   RFID   MVC   物联网  

摘要： 为实现现代化涉案财物管理工作,切实保障犯罪嫌疑人合法权益,设计并实现了运用于涉案财物的进出管理系统,为现代化的涉案财物管理提供了有效的平台。主要采用了物联网技术中的RFID定位技术,该系统采用MVC三层架构的方式,配合Layui、SpringBoot、MySQL等Web技术和工具实现在PC端的系统管理、库存管理、申请管理、审批管理等功能,该管理系统有效地利用物联网技术提高了公安部门在涉案财物管理工作中的效能,为司法程序公平、公正给予了有力的支持。