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关键词： 汽车制造   RFID   电子标签  

摘要： 通过分析汽车制造过程中RFID技术的应用场景和系统组成,针对实际应用中存在的问题,提出了RFID系统优化升级方案,系统性地弥补了现有RFID系统的不足和漏洞。

关键词： 电气控制   物联网   PLC   模糊PID控制   射频识别   能源管理   故障预测  

摘要： 针对现有电气控制系统控制能力不足的问题,基于物联网和PLC(Programmable Logic Controller)技术设计了一种公共建筑电气控制系统。该系统选用S3C2440A芯片作为中央处理器,通过模糊PID控制方法实现电力设备的能源管理,引入改进粒子群算法优化管理效果;并通过射频识别(Radio Frequency Identification, RFID)技术进行电气系统的精准故障分析预测,大幅提高系统预测效率。在实验中,该控制系统节能效果提高约50%,效率提高约41.18%,预测效率平均提高35.23%。该系统有效提高了对公共建筑中电力设备的控制能力。

关键词： Individual differences   Feed efficiency   Deep learning   RFID   Data fusion  

摘要： Estimating the individual feed intake(FI)for multiple consecutive meals of fish reared at commercial densities has long been a challenge and this difficulty has prevented the genetic improvement of feed efficiency(FE)in *** propose an automatic and real-time measurement system for individual FI of fish reared in a group based on computer vision and radio frequency identification fusion technology in large yellow croaker(Larimichthys cro-cea).To achieve this,we designed a feeding station where only one fish at a time can enter and have their passive integrated transponder(PIT)tag *** then trained a feed pellet detection model based on You Only Look Once v5 using an annotated dataset,which achieved a final precision of nearly 100%.Finally,we utilized the trained feed detection model combined with PIT scanning to accurately and automatically track individual FI of fish with access to the feeding *** 10 experiments lasting a total of 792 min conducted in the laboratory,the automatic real-time feed counting achieved an average accuracy of 94.5%.In addition,during a 14-day FI measurement period conducted in an indoor farm with 894 fish that received two meals per day,large yellow croaker feed efficiency ratio(FER)was 0.9±0.4 with a coefficient of variation of 47%.FER showed a weak positive correlation with initial body weight and a weak negative correlative with *** was also a moderate correlation between FER and body weight gain(BWG),with subgroups that had high BWG exhibiting greater FER *** approach described here demonstrates a method to automatically and accurately investigate FER in fish that can be used to assess the potential for their genetic improvement.

关键词： 智能化升级   RFID   模具编码   智能制造   无线识别系统  

摘要： 当前,智能制造在全球范围内快速发展,制造业竞争日益激烈。在国内经济新常态背景下,数字化、智能化转型进程显著加快,正成为汽车制造、机床等各行各业经济增长的核心驱动力。冲压车间作为整车制造厂的排头兵,智能化升级迫在眉睫。近年来,随着无线通信技术的发展和工厂智能制造的兴起,工厂自动化程度显著提升,各企业在逐步向灯塔工厂靠拢。原有设备在技术上相对落后,而新技术层出不穷,为提升成本效益与生产效率,需引入物联网技术对设备进行更新改造。

关键词： 智慧仓储   无源物联   RFID   反向散射  

摘要： 5G-A无源物联网技术有助于实现全生产要素连接及智能化、自动化管理,本文面向智慧仓储的无源物联网解决方案进行研究,通过分析网络规划方法、系统性能和网络部署关键问题,旨在为无源物联网智慧仓储组网规划方案设计提供技术参考。

关键词： 公共卫生   物联网   RFID   批量扫描   全过程追溯  

摘要： 目的为当前数字化、智能化、物联网等技术赋能,逐步构建实验室一体化管理模式,驱动公共卫生实验室高质量发展。方法从现状及问题、流程优化设计、标签和架构设计、应用系统功能等方面探索基于RFID技术的样品溯源管理平台的建设及应用。结果RFID技术可应用于公共卫生实验室样品管理,带有芯片的样品标签小巧轻薄,实现样品批量扫描和全过程追溯,通过接口方式与已有实验室检验检测系统互联互通。结论公共卫生实验室样品管理平台引入RFID技术,提高了工作效率,降低了样品遗失或误置的风险,提升了管理效能。

关键词： Activities of daily living (ADL)   Dementia   Dressing   Elderly   Remote care   RFID   Smart environment  

摘要： The number of elder people with dementia is steadily increasing, and so is the need for solutions to support remote home care and to facilitate “aging in place”. People affected by dementia often need assistance with daily self-care tasks such as dressing, eating, and bathing. Our focus is on the dressing activity: we analyze the requirements and propose a system that leverages RFID-based technology to support individuals in dressing appropriately, let the individuals reside at home or in assisted living facilities. The system exploits RFID tags, fixed or ironed onto the person’s clothes, and antennas to read and collect data from the tags. The system detects the user’s outfit, eventually providing the individual with immediate feedback and alerting the caregiver. We compare two different RFID technologies: one operating at 13.56 MHz (HF)—commonly adopted in the literature—and one at 868 MHz (UHF). An in-depth analysis of the RFID technology for detecting worn clothes is reported, considering the scenario where the antennas are positioned on one side of a door to achieve comprehensive detection coverage of the entire body. © The Author(s) 2025.

关键词： 医院织物   射频识别   织物管理系统   实施方案   服务质量  

摘要： 文章结合医院的运营实际,对基于射频识别技术(Radio Frequency Identification, RFID)的织物管理系统在医用织物管理过程中的应用进行了分析。结果显示,应用此系统,织物洗涤服务质量得到提升,满意度有所提高,被服遗失率降低,降低了感染风险,整体节约了约50%的操作处理时间。

关键词： 射频识别   室内定位   VIRE   RBF插值   KNN  

摘要： 传统VIRE定位算法以线性插值计算虚拟参考标签RSSI值,而RSSI值与距离基本呈对数关系,从而影响定位精度;模糊地图固定阈值不适用复杂环境下的定位需求。针对这两个问题,提出基于RBF插值的VIRE室内定位改进算法。利用RBF插值计算虚拟参考标签的RSSI值,并用自适应KNN算法代替模糊地图,简化算法流程,自动调整选取邻近标签的阈值。实验表明,改进后的算法比传统VIRE算法和现有的VIRE改进算法提高了定位精度和稳定性。

关键词： 3-D printing   radio frequency (RF)   radio frequency identification (RFID)   RFID tags   sensors   smart agriculture   ultra-high frequency (UHF) technology  

摘要： This work presents the design, analysis, and experimental validation of a novel chip-based 3-D printed ultra-high frequency (UHF) radio frequency identification (RFID) sensor designed for leaf moisture detection for smart farming applications. The presented sensor is designed to operate at a frequency of 915 MHz and utilizes an integrated circuit (IC) chip having a specified impedance of 18.06- j164 Omega at 915 MHz. The proposed sensor is fabricated by the state-of-the-art Nano Dimension DragonFly IV 3-D printer. The 3-D printer uses both dielectric and conductive inks in a single printer for producing additive manufactured electronics (AME). The performance of the sensor is validated by experiments conducted on Valley Oak, Japanese tree lilac, and Crabapple leaf samples. The sensor's functionality is based on its ability to detect variations in the dielectric properties of leaves, which are caused by changes in moisture content. This is achieved by analyzing the radio frequency (RF) backscattered signal, measured in terms of the received signal strength indicator (RSSI) levels, using a standard RFID reader. Experimental results demonstrate a consistent linear relationship between RSSI levels and leaf moisture content that is used to obtain a calibration curve that can accurately determine unknown moisture levels. By integrating advanced fabrication techniques with reliable RF sensing mechanisms, this work offers a sustainable, and scalable solution for monitoring plant health and optimizing agricultural productivity.