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关键词： RFID   文件柜   区域定位   近场天线   串读率   漏读率   生物识别  

摘要： 针对纸质文件的智能化管理需求以及存在的串读率和漏读率高的痛点,文中设计了一种基于无源RFID技术的智能文件定位柜,通过双馈点PCB近场天线阵列的设计,结合基于天线阵列的三维区域定位算法,实现文件的精准区域定位。同时,结合人脸识别技术与电控门锁,实现文件的专人管理。通过指示灯展示文件所在柜组中的区域位置,可以实现文件的快速精准定位。本设计可以实现对文件的专人管理授权、实时定位、全柜盘点、存取记录查询等功能,大幅提高文件管理人员的工作效率,并有效解决文件标签的位置串读以及标签漏读等问题。

关键词： 全钢子午线轮胎   RFID电子标签   射频识别   植入式标签   内贴式标签   可靠性  

摘要： 研究植入式和内贴式两种射频识别(RFID)电子标签在全钢子午线轮胎中的应用。结果表明:植入式RFID电子标签可靠,自主开发的植入式RFID电子标签复合胶料不会影响电子标签性能及轮胎质量;植入式RFID电子标签合适的植入位置是胎体反包端点、三角胶外侧;通过外观和内部质量检查、室内机床测试、道路测试验证了植入式RFID电子标签不会影响成品轮胎质量及使用性能;内贴式RFID电子标签用于有内胎轮胎时,在室内机床测试时会出现移位、表层脱离现象,可靠性需验证。

关键词： RFID技术   电子围栏   施工人员   行为预判   告警算法   防冲突  

摘要： 在电子围栏内施工人员行为预判与告警研究中,面对不确定的行为信息,常见的告警算法存在大量时隙分配冲突,导致算法的自适应性较差。为此,提出基于射频识别(Radio Frequency Identification,RFID)技术的电子围栏内施工人员行为预判与告警算法。通过远程通信和RFID读写器实时读取施工人员的位置信息和行为信息,将逻辑运算符与时间约束运算符相结合预判施工人员行为,在预判到危险行为后,产生相应的告警信息,设计防冲突算法,将告警信息传递到对应的电子标签上,实现对施工人员的告警。实验结果表明:面对不确定的行为信息,设计的告警算法对施工人员行为信息识别水平高,在时隙分配中未发生冲突事件,且分配成功率在99%以上,其自适应性得到提升。

关键词： 超高频电子射频识别技术   手术器械   自动清点   全流程信息化管理  

摘要： 近年来,超高频电子射频识别(RFID)技术在消毒供应中心及手术室的手术器械全流程跟踪管理中得以应用,通过利用该技术,可实现快速有效地进行手术器械的跟踪及清点,减轻医护人员的日常工作量,提高手术器械的管理效率与质量,且便于工作人员查询手术器械的使用情况和历史追溯,实现对手术器械的全流程信息化管理,从而为医院合理使用及有效采购手术器械提供依据;此外,该技术还可优化手术室器械管理水平及运行机制,提升医疗管理质量。

关键词： 制造执行系统   无线射频识别   汽车零部件系统   系统设计与开发  

摘要： 文章从国内汽车零部件制造行业的现状及制造执行系统(MES)的国内外应用出发,针对目前汽车零部件行业生产管理离散程度大、制造过程环境复杂、数据实时性差以及接触式条码识别技术的劣势等问题,识别企业实际需求,将无线射频识别(RFID)这一使用射频通信实现的非接触式自动识别技术与面向工厂生产运营管理和实时数据管理,且作为在整个企业的信息化系统中起到制造活动与管理活动中的信息数据桥梁作用的制造执行系统相结合的研究方法,设计与构架了基于RFID技术的MES应用方案,并运用结构化查询语言(SQL)数据库、Java及Lab view等开发工具,最终成功付诸于B工厂电子助力电机制造线的应用实现。通过评估,该类系统可以有效改善生产运营效率,具备在汽车零部件制造业推广的意义。

关键词： 物联网   RFID技术   档案管理   智能化  

摘要： 21世纪以来,人工智能、物联网、云计算等信息技术的普及应用,推动了农业、制造业、物流仓储、定位导航、城市管理等领域的智能化发展。传统的档案管理模式已无法满足智能一体化的管理需求,物联网技术可实现档案管理的智能化、信息化。文章从档案库房环境监控、档案安防管理、统计盘点、智能化入库与编目、简化档案借阅管理、筛选失效和冗余档案、档案馆藏地图查询等方面进行了深入阐述。

关键词： 综采工作面   采煤机   精确定位   RFID  

摘要： 针对采煤机与液压支架相对位置精确检测问题,提出一种基于射频识别技术(RFID)的定位方法。该技术将RFID发射装置安装在采煤机上,将RFID接收装置安装在液压支架上,然后顺槽监控中心对接收装置接收到的射频信号功率进行计算和优化,转换为采煤机位置坐标,从而实现采煤机与液压支架相对位置精确定位。运用RFID定位技术于红柳林煤矿综采工作面进行试验验证,结果表明,该技术实现了采煤机与液压支架相对位置的精确定位,为液压支架自动跟机移架奠定良好基础。

关键词： Microstrip antennas   Dipole antennas   Microstrip   Radiofrequency identification   UHF antennas   Microstrip antenna arrays   Noise measurement   Loop antenna array   near-field and far-field radiation   omnidirectional radiation   radio frequency identification (RFID)   ultrahigh-frequency (UHF)  

摘要： This letter presents a loop antenna array for ultrahigh frequency near-field and far-field radio frequency identification (RFID) reader applications. The antenna array consists of several microstrip collinear loop antennas, and each loop antenna is composed of several periodic radiating units. By deploying microstrip collinear radiating units, a novel loop antenna with in-phase radiating currents is realized, which generates a strong and uniform magnetic field over a large interrogation area and a horizontally polarized omnidirectional radiation. By configuring the array antenna, the magnetic fields distribute on the entire antenna array and create an enlarged near-field reading area. The far-field coverage is enlarged by the superposition of omnidirectional radiation. The antenna array is simulated and validated with a four-element prototype made on FR-4 substrates. The antenna array is measured to have a -10 dB impedance bandwidth from 802 to 963 MHz with an enlarged near-field reading volume of 280 x 280 x 540 mm and a far-field gain of 6.66 dBi at the UK RFID band.

关键词： AK-tag   antenna design   barcodes   dual technology   UHF RFID  

摘要： In this paper, a novel methodology to design Ultra High Frequency Radio-Frequency IDentification (UHF RFID) tag antennas with Barcode layout is proposed with the challenging goal of "fusing" both technologies in a single device. Specifically, after a brief recall of the well-known barcode standard, a procedure to design meandered barcode-shaped UHF RFID tags is introduced and discussed leveraging on electromagnetic evidence. The main steps of the proposed method are described by highlighting the constraints inherited by both the adopted technologies, as well as the useful opportunities to automatise the entire antenna design process after a preliminary simulation campaign through a full-wave simulator. Different RFID-Barcode tag antennas are designed, manufactured, and characterised in terms of maximum reading range and tag sensitivity. Obtained results demonstrate the validity of the proposed approach.

关键词： Robots   Measurement   Radiofrequency identification   Task analysis   Navigation   Robot sensing systems   Complexity theory   Applied robotics   inventory   measurement   metrics   performance   radio frequency identification (RFID)  

摘要： Radio frequency identification (RFID) technology is being widely adopted by retailers due to its accuracy, versatility, and reduction of operational costs. Most commonly, RFID in retail is used for taking frequent and accurate inventories of items in the stores. Usually, RFID inventories use handheld RFID devices, which makes the task tedious, costly, and prone to human errors. More reliable, fully automatic alternatives exist, such as smart shelves, overhead RFID antennas, and RFID-equipped robots. Among them, robots seem to be the preferred choice by retailers with large stores. However, retailers need an objective way to compare the different options for inventory solutions and to calculate the return on investment of each of them before they make an investment decision. In this article, we present a metric for assessing, comparing, and predicting the performance of autonomous RFID-based robots in retail stores. The metric is based on a theoretical model of both the store and the robot, and predicts the performance of a given robot when inventorying a specific store. The metric also allows to compare the performance of different RFID robots in different stores. The metric has been developed using experimental data and has been validated in a real store.