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关键词： RFID通信技术   电子标签分类   识别系统   应用  

摘要： 无线射频识别(RFID)技术是一种利用无线电波进行识别和跟踪物体的技术。它由标签、读写器和中间件三部分组成。标签存储有关物体的信息;读写器用于读取和写入标签信息;中间件作为软件层,管理数据流和读写器之间的通信。在现代物流、零售和安全等领域,电子标签的分类识别系统的设计变得尤为重要,设计需求包括高效的识别速度、广泛的读取范围和强大的数据安全性。文章围绕RFID通信技术在电子标签分类识别系统设计中的应用进行了深入研究,详细阐述了系统架构设计、核心模块设计、系统实现的技术细节,同时对系统测试结果进行了分析,为RFID技术在电子标签识别系统的应用提供了新的理论和实践依据。

关键词： LoRaWAN   IOT   Indian Railways   Machine Learning   Railway Signaling   Platform Management   Radio Frequency Communication   RFID   Automation   Sensors   Communication Network   Wireless Sensor Network  

摘要： The integration of advanced communication and automation technologies provides a transformative approach to enhancing railway signaling and platform management. This system utilizes real-time data exchange to optimize train positioning, platform allocation, and overall network operations. Leveraging long-range, low-power communication protocols such as LoRaWAN, the solution enables seamless and reliable coordination between trains and stations, reducing delays, enhancing safety, and improving the precision of platform management. Additionally, RFID technology is employed to enhance accuracy in monitoring train movements and platform occupancy, ensuring smoother and more efficient operations. The system architecture facilitates more effective resource management by automating key processes such as train scheduling and platform allocation, ultimately minimizing energy consumption and lowering operational costs. With improved communication accuracy, faster response times, and robust system reliability, the proposed solution addresses critical challenges faced by modern railway systems. This approach is designed to be scalable and adaptable to the evolving demands of large railway networks, including Indian Railways, providing a future-proof strategy for optimizing performance and sustainability. By modernizing traditional operations and improving efficiency, the system offers a comprehensive upgrade for both freight and passenger rail services, ensuring long-term operational resilience.

关键词： 射频识别   低功耗   标签   股道占用   智能防溜  

摘要： 传统铁鞋作为车辆防溜作业的常用工具,对车辆的安全运行提供了重要保障。传统铁鞋智能化程度不足,难以知晓设备当前所在的股道,容易出现错放或者漏撤等风险,如果不及时进行处理会造成行车安全。结合低功耗RFID技术、LoRa无线通信技术、超声波测距技术、加速度传感器技术开发了一款低成本、高准确率的股道占用识别系统。此系统能够精确识别出智能铁鞋所在的股道,同时确定其所在股道的里程数,减少了操作人员的工作量,提高了现场作业的管理水平。

关键词： 智能盘点   称重   图像识别   出版行业   RFID  

摘要： 在国家对物流行业高质量发展的指导下,中国的物流产业呈现出较快的发展趋势,并与大数据、区块链、物联网等与物流行业结合,形成了中国物流与供应链数字化协同发展格局。近年来立体仓库被广泛使用,自动化设备管理水平不断提高,企业立体仓库的作业效率得到大幅提升。但是立体仓库密集式存储的特点对企业盘点提出了更高要求,传统的盘点方法往往依赖于人工,效率低,错误率高,已无法满足立体仓库的盘点需要。尽管已有RFID和图像识别技术应用于盘点领域,但针对图书出版行业的立体仓库实现智能盘点的应用仍较少。因此,本研究拟在人民卫生出版社人卫智慧数字研发综合服务示范项目中,结合称重传感器和图像识别技术,提出一种智能盘点方法。旨在提高盘点效率和准确性,为出版行业的数字化转型提供参考和借鉴。

关键词： RFID   电子标签   光缆   数智化  

摘要： 传统的哑资源管理模式难以满足“精准、快速、自智”的数智化运维需求,本文结合某省通信运营商采用RFID技术改造光缆网数智化案例,分析光缆网数智化运维管理试点方案,并提出了光缆网数智化推进部署建议。

关键词： Radio frequency identification (RFID)  

摘要： To address the problem of how liquid level height variations within containers impact the performance of passive ultra-high frequency (UHF) RFID tags, a link budget model for passive UHF RFID systems was derived based on the electromagnetic wave propagation theory of RFID. Using the power transmission coefficient, the study analyzes how liquid-induced impedance mismatch within containers affects system performance. To validate the theoretical model, a method combining simulations and indoor experiments was employed. Through simulation and analysis, segmented models were established to describe the variation in tag response signal strength (RSSI) with changes in liquid level height for both vertical and horizontal tag orientations. In an open indoor environment, the RSSI of two tags, Alien9662 and Alien9640, was measured as the liquid level varied, covering a range from 0 mm to 140 mm to observe signal strength changes under different liquid levels. Theoretical analysis and experimental results indicate that when the liquid level rises along the bent arm of the antenna, RSSI gradually decreases with increasing liquid level height, whereas when the liquid level rises along the electric small loop, RSSI exhibits a nonlinear trend, initially increasing and then decreasing. The RSSI change patterns for both tags align with the segmented model, verifying its accuracy. These findings provide a theoretical basis for understanding the effects of liquid environments on RFID system performance and offer practical insights for tag deployment and design in real-world applications. © 2025 Editorial Office of EMI Journal. All rights reserved.

关键词： fuzzy C-means clustering   explainable AI (XAI)   SHAP values   LIME   customer service   machine learning (ML)   RFID  

摘要： In today's data-driven business landscape, effective and transparent decision making becomes relevant to maintain a competitive advantage over the competition, especially in customer service in B2B environments. This study presents a methodological framework that integrates Explainable Artificial Intelligence (XAI), C-means clustering, and the Analytic Hierarchical Process (AHP) to improve strategic decision making in business environments. The framework addresses the need to obtain interpretable information from predictions based on machine learning processes and the prioritization of key factors for decision making. C-means clustering enables flexible customer segmentation based on interaction patterns, while XAI provides transparency into model outputs, allowing support teams to understand the factors influencing each recommendation. The AHP is then applied to prioritize criteria within each customer segment, aligning support actions with organizational goals. Tested with real customer interaction data, this integrated approach proved effective in accurately segmenting customers, predicting support needs, and optimizing resource allocation. The combined use of XAI and the AHP ensures that business decisions are data-driven, interpretable, and aligned with the company's strategic objectives, making this framework relevant for companies seeking to improve their customer service in complex B2B contexts. Future research will explore the application of the proposed model in different business processes.

关键词： reconfigurable antenna   ultrahigh frequency (UHF)   radio frequency identification (RFID)   near-field antenna   composite right/left-handed material  

摘要： In radio frequency identification (RFID), differences in spectrum policies and tag misreading in different countries are the two main issues that limit its application. To solve these problems, this article proposes a composite right/left-handed transmission line (CRLH-TL)-based reconfigurable antenna for ultra-high frequency near-field and far-field RFID reader applications. The CRLH-TL is achieved using a periodically capacitive gap-loaded parallel plate line. By deploying the CRLH-TL operating at zeroth-order resonance, a loop antenna with in-phase radiating current is obtained, which contributes to a strong and uniform H-field and a horizontally polarized omnidirectional radiation pattern. By introducing additional tunable components, frequency and reading range reconfigurabilities are enabled. The frequency tuning range is from 833 MHz to 979 MHz, which covers the worldwide UHF RFID band. Moreover, each operation mode has a narrow frequency band, which means it can operate without violating different countries' radio frequency policy and reduce the design difficulty of designing multiple versions of a reader. Both the near-field interrogation zone and maximum far-field reading distance of the antenna are adjustable. The near-field interrogation zone is 400 mm x 400 mm x 50 mm and can be further confined. The tuning range for far-field reading distance is from 2.71 m to 0.35 m.

关键词： Radio frequency identification (RFID)  

摘要： To address the problem that the mutual coupling effect between tags has different effects on tags at different positions, which makes the overall performance of the linear array distributed RFID system show nonlinear changes with the change of tag spacing and number. The method involves that based on the working principle of RFID and the theory of electromagnetic wave propagation, the expressions of the mutual impedance and power transmission coefficient of tags in the multi-tag RFID system are derived. Using power transmission coefficient, the influence of mutual coupling effect the tags at different positions and the overall performance of the system in the case of linear equidistant distribution of tags is analyzed. A mathematical model of the system ' s minimum power transmission coefficient changing with the tag spacing and the number of tags is established. In an open indoor environment, the response signal power is tested when the tag spacing and number change. Theoretical analysis and experimental results show that when the tags are linearly equidistantly distributed, the power transmission coefficient of the tags is nonlinearly related to the spacing. The influence of the mutual coupling effect on the tags no longer decreases monotonically with the increase of distance, but gradually decreases with the wavelength as the period, and reaches the maximum value when the spacing is a multiple of the wavelength. The location of the system's minimum power transmission coefficient fluctuates between the center and the outside with a wavelength as the spacing increases. The test results of system performance are consistent with the change pattern of the established model. © 2025 Editorial Office of EMI Journal. All rights reserved.

关键词： RFID transponder   textronics   textile antenna   embroidery   embroidered antenna  

摘要： The production of consumer electronics using electrically conductive materials is a dynamically developing sector of the economy. E-textiles (electronic textiles) are also used in radio frequency identification technology, mainly in the production of tag antennas. For economic reasons, it is important that the finished product is universal, although frequencies in radio systems have different values in different regions of the world. Therefore, the antenna bandwidth must be sufficiently wide so that the read range of the tag is maximally large for all frequencies of the specified band. The bandwidth of an antenna depends on its type and geometric dimensions, but this parameter can also be influenced by the way a given type of antenna is made. The authors prepared samples of embroidered RFID tag antennas for the UHF band using various types of embroidery. Then, its impedance and the read range of the tag were examined in order to determine the exact influence of the type of embroidery on the parameter of interest (antenna bandwidth). The results obtained during the research indicate the influence of different embroidery styles is present;however, that influence is not significant.