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关键词： 3D printing  

摘要： The rapid development and deployment of 5G/mm-Wave technologies for communication, sensing and energy harvesting applications have been on the rise. Consequently, the need for low-cost, scalable, agile and compact RF modules has become more prominent than ever. This paper presents a review of recent efforts in utilizing additive manufacturing techniques such as inkjet printing to sustainably accelerate the massive deployment of 5G/mm-Wave. First, a novel flexible and massively scalable multiple-input, multiple-output (MIMO) tile-based phased array enabled by additively manufactured microstrip-to-microstrip transitions is presented. Next, a novel Rotman-Based harmonic mmID tag for Ultra-Long-Range localization is presented. Finally, low-power, low-cost mm-Wave backscattering modules for localization and orientation sensing are demonstrated. © 2023 World Scientific Publishing Company.

关键词： 工业互联网   低频   射频识别   高安全  

摘要： 针对低频射频识别技术在工业互联网标识解析应用中存在的安全防护弱问题,从数据存储、数据输出、数据传输和数据认证方面进行高安全研究,提出了efuse物理双断电路结构、非对称编码输出电路、密文标识编码和随机数安全认证等高安全设计,建立了低频芯片、低频标识、手持终端和工业互联网节点等全流程低频射频识别技术的高安全架构,并设计了面向工业互联网的配电电缆及通道数字化管理系统,实现了低频射频识别技术在工业互联网标识解析中应用的高安全性。

关键词： MySQL数据库   Kinect   RFID技术   DynamicFusion算法  

摘要： 当前,由于服装消费市场规模的快速发展,人们衣柜里的衣物越来越多,而过多的衣物给人们造成了诸多困扰。针对人们搭配衣服效率较低的问题,本文采用MySQL数据库和云端两种类型的存储方式对用户衣柜中的衣物数据以及Kinect读取的用户信息进行存储,同时RFID技术通过射频信号的方式将系统中的数据以及Kinect读取的用户信息结合Dynamic Fusion算法,构造出三维动画呈现在UI显示屏上,用户只需在显示屏上搭配自己喜欢的风格,随机显示屏会呈现出用户选定的衣物的具体位置。该系统的设计极大地简化了用户思考,以及试衣服的烦琐过程,同时也大大节约了时间、提高了搭配衣服的效率、增加了用户对于着装前的使用体验感。

关键词： RFID   检验检测   样品系统   入库系统  

摘要： 按照检验检测机构资质认定评审准则及CNAS-CL01:2018《检测和校准检验检测机构能力认可准则》,检验检测机构需建立有效的标识系统,防止被测样品在流转过程中发生混淆。因此,本文研究了基于RFID的样品流转系统,该系统能准确高效的控制样品的流转,达到准确、高效流转和抽检分离的目的。

关键词： RFID   Missing key tag identification   Time efficiency   Robust  

摘要： Radio Frequency Identification(RFID)technology has been widely used to identify missing *** many applications,rapidly pinpointing key tags that are attached to favorable or valuable items is *** realize this goal,interference from ordinary tags should be avoided,while key tags should be efficiently *** many previous studies,how to rapidly and dynamically filter out ordinary tags when the ratio of ordinary tags changes has not been ***,how to efficiently verify missing key tags in groups rather than one by one has not been explored,especially with varying missing *** this paper,we propose an Efficient and Robust missing Key tag Identification(ERKI)protocol that consists of a filtering mechanism and a verification ***,the filtering mechanism adopts the Bloom filter to quickly filter out ordinary tags and uses the labeling vector to optimize the Bloom filter's performance when the key tag ratio is ***,the verification mechanism can dynamically verify key tags according to the missing rates,in which an appropriate number of key tags is mapped to a slot and verified at ***,we theoretically analyze the parameters of the ERKI protocol to minimize its execution *** numerical results show that ERKI can accelerate the execution time by more than 2.14
compared with state-of-the-art solutions.

关键词： 射频识别   电子标签   读写器  

摘要： RFID(Radio Frequency Identification,射频识别)技术是PCB工厂智能化建设中必不可少的一个活跃技术元素,可用于快速识别和定位物品、物流追踪、授权管理、资产管理、门禁考勤、物品库存和出入库自动化管理等等,运用到生产管理中,可化繁为简、降本增效。文章介绍了RFID系统开发应用的思路和方法,包括软件端数据采集处理程序的开发、读写器和电子标签等硬件的选型,高频和超高频电子标签应用实例讲解,希望可以帮助现场工程师将RFID技术运用到工厂中,换个角度用新思路和新方法来解决现场疑难棘手问题。

关键词： 仓储管理   智能仓储   信息化   RFID技术  

摘要： 信息化和智能化掀起了建筑业发展的新浪潮,提供了确保工程建设安全、提高工程建设效率的新思路、新工具和新方法。仓储管理作为铁路四电工程建设物资供给的关键环节和基础保障,其管理效率和安全维护是重中之重。本文以铁路工程建设为背景,结合铁路四电工程仓储管理的现状和特点,梳理铁路四电工程仓储管理的智能化需求,集成RFID、人脸识别、智能视频监控、信息化管理系统等先进成熟的智能化信息技术,设计了智能仓储系统的各项功能及实现路径。最后,本文还对系统的总体构建框架和主体思路进行了阐述,在此基础上总结了系统的智能化效果和应用价值。

关键词： transformer   double antenna RFID sensor   LSTM   periodical sparse attention mechanism   fault diagnosis  

摘要： This work aims to realize multiple mechanical fault diagnosis for transformers in the incubation period. A double antenna radio frequency identification (RFID) sensor is used to obtain vibration signals generated by a transformer. The measured raw vibration signals have prominent nonlinear characteristics;besides, they are mixed with vast noises, such as electromagnetic interference, measurement disturbance and so on, making it challenging to identify distinguishable features from the measured data. The long short-term memory (LSTM), which exhibits satisfactory performance in dealing with large-scale nonlinear time-series signals, is adopted to extract features from high-dimensional raw signals. Because the parameters of the LSTM cell and support vector machine significantly determine the accuracy of diagnosis, these parameters are determined using the chaotic quantum particle swarm optimization algorithm. Moreover, the sparse periodical attention (PSA) mechanism is used to enhance the LSTM model's performance by focusing on global feature learning and determining the input data length. The experimental results verify that the exploited RFID sensor realizes reliable data wireless transmission within 17.5 m. Moreover, the PSA-optimized LSTM approach achieves satisfactory trade-off between diagnosis accuracy and computation complexity while dealing with multiple mechanical fault diagnosis of a transformer in early stages.

关键词： 射频识别技术   全球定位系统   铁路路料   机具管理   安全控制  

摘要： 通过使用射频识别技术的点检仪,来实现铁路施工维修人员在仓储和施工过程中对工具的智能化管理以RFID技术为基础,在移动终端嵌入应用软件系统,并安装固定式读写器,将使用的工具上安装RFID标签。解决了仓储的工具管理,及户外、线边等施工作业过程中,工具使用过程无法监管的问题;同时将人、时间、工具的数据进行采集,结合软件系统进行跟踪追溯,可以记录每一次的使用状态;还可在工具遗失后,利用移动终端,通过GPS模块,进行区域定位查找,整个应用方案形成一个闭环,大大提高路料机具智能化管理。