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标准号: GB/T 35290-2023

摘要： 本文件规定了射频识别（RFID）系统安全技术要求，包括电子标签、阅读器/读写器、空中接口通信链路、网络传输通信链路管理单元等的安全要求，给出了测试条件和测试评价方法。本文件适用于射频识别（RFID）系统的安全功能设计、开发、使用、测试和评估。

标准号: GB/T 43494-2023

摘要： 本文件规定了轮胎用射频识别（RFID）电子标签（以下简称 RFID电子标签）编码通用要求、数据结构。本文件适用于各种技术的轮胎用 RFID 电子标签。

标准号: GB/T 43490-2023

摘要： 本文件规定了轮胎用射频识别（RFD）电子标签（以下简称RFID电子标签）的要求，包括基本参数与配置和技术要求。本文件包含了3种技术的RFID电子标签：植人式、补片式，粘贴式。本文件适用于所有类型的轮胎使用的RFID电子标签。

关键词： 科研事业单位   资产基础管理   RFID  

摘要： 资产基础管理工作在保障资产安全完整、提高资产效能中扮演着重要角色.本文分析了科研事业单位在资产基础管理中存在的主要问题,围绕解决实际问题,以Z研究所为例,从信息化建设的角度出发探索科研事业单位如何进一步优化基础管理工作,解决相关难点问题,以深入贯彻落实《行政事业性单位国有资产管理条例》相关要求.

关键词： Energy transfer  

摘要： Electric vehicle (EV) has emerged as a transformative force for the sustainable and environmentally friendly future. To alleviate range anxiety caused by battery and charging facility, dynamic wireless power transfer (DWPT) is increasingly recognized as a key enabler for widespread EV adoption, yet it faces significant technical challenges, primarily in precise coil alignment. This article begins by reviewing current alignment methodologies and evaluates their advantages and limitations. We observe that achieving the necessary alignment precision is challenging with these existing methods. To address this, we present an innovative RFID-based DWPT coil alignment system, utilizing coherent phase detection and a maximum likelihood estimation algorithm, capable of achieving sub-10 cm accuracy. This system's efficacy in providing both lateral and vertical misalignment estimates has been verified through laboratory and experimental tests. We also discuss potential challenges in broader system implementation and propose corresponding solutions. This research offers a viable and promising solution for enhancing DWPT efficiency. © 2023, CC BY.

关键词： Authentication  

摘要： In this paper, authentication for mobile radio frequency identification (RFID) systems with low-cost tags is studied. Firstly, an adaptive modulus (AM) encryption algorithm is proposed. Subsequently, in order to enhance the security without additional storage of new key matrices, a self-updating encryption order (SUEO) algorithm is designed. Furthermore, a diagonal block local transpose key matrix (DBLTKM) encryption algorithm is presented, which effectively expands the feasible domain of the key space. Based on the above three algorithms, a novel joint AM-SUEO-DBLTKM encryption algorithm is constructed. Making full use of the advantages of the proposed joint algorithm, a two-way RFID authentication protocol, named AM-SUEO-DBLTKM-RFID, is proposed for mobile RFID systems. In addition, the Burrows-Abadi-Needham (BAN) logic and security analysis indicate that the proposed AM-SUEO-DBLTKM-RFID protocol can effectively combat various typical attacks. Numerical results demonstrate that the proposed AM-SUEO-DBLTKM algorithm can save 99.59% of tag storage over traditional algorithms. Finally, the low computational complexity as well as the low storage cost of the proposed AM-SUEO-DBLTKM-RFID protocol facilitates deployment within low-cost RFID tags. Copyright © 2023, The Authors. All rights reserved.

关键词： Sensors   Rectifiers   Radiofrequency identification   Radio frequency   Feeds   Wireless sensor networks   Wireless communication   Differential feed rectifier   power management   radio frequency energy harvesting (RF-EH)   radio frequency identification (RFID) sensor   wireless power and data transfer (WPDT)  

摘要： The radio frequency identification (RFID) sensors featuring simultaneous wireless power and data transfer (WPDT) have provided promising potentials for flexible sensing and communication in future industrial applications. The performance of RFID sensors regarding the number of integrated sensors and interrogation distance is constrained by the efficiency of radio frequency energy harvesting (RF-EH) and the power management techniques for efficient power utilization. This investigation presents a design methodology for multisensor augmented RFID sensor focusing on the RF-EH efficiency, power management, and the system's overall performance. The contributions include: 1) a multisensor augmented RFID design scheme to improve the efficiency of RF-EH and power utilization;2) design of a planar inverted-F antenna (PIFA) and a differential feed Greinacher rectifier to improve the RF-EH efficiency;and 3) a power management optimization method to improve the power utilization efficiency based on the budgeting and analysis of the components' consumption. A prototype system integrating temperature, humidity, and illuminance sensors is developed and experimentally verified. The presented techniques are proven a good reference for the research and practice of power-efficient sensing.

关键词： Sensors   Humidity   Encoding   RFID tags   Wireless sensor networks   Resonant frequency   Monitoring   Environmental humidity detection   flexible tag sensor   frequency shift   radio frequency identification (RFID)   structural health monitoring (SHM)  

摘要： The rapid development of radio frequency identification (RFID) technology has significantly changed the method of structural health monitoring (SHM). In this article, a novel flexible chipless RFID tag sensor is proposed to monitor the change of relative humidity (RH) in the environment around structures. The tag is fabricated on a flexible substrate that can be transferred to a bendable metal surface and is fused with a high encoding capacity for tag recognition. In addition, a low-cost detection and wireless transmission scheme for dynamic spectrum data transmission is used, which is more flexible and automatical than traditional detection methods. The simulation and experiment results show that the humidity sensitivity of the tag sensor coated with a polyvinyl acetate (PVA) film is about 0.584 MHz/RH in the RH range below 60% , and about 2.03 MHz/RH in the higher RH range. Meanwhile, the tag can maintain stable sensing performances in a certain bending range, which may be very desirable in many application scenarios.