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关键词： RFID   图书馆   智能   盘点   设计  

摘要： 全民阅读时代的到来激发了人们的阅读需求,各级图书馆在不断扩大规模、更新图书资源的同时,也面临着繁重的盘点问题。以基于射频识别(radio frequency identification,RFID)技术的图书馆智能盘点系统为研究内容,在对RFID技术进行概述的基础上,简单介绍了该系统的整体框架结构,并深入分析了该智能盘点系统的关键技术构成及功能,以期为图书馆盘点工作智能化、数字化发展提供参考。

关键词： RFID   电子标签芯片   数字基带   低功耗  

摘要： 在RFID技术不断发展和应用领域不断扩大的背景下,低成本、低功耗是标签芯片设计的重中之重。本文设计了一款数字基带,符合国家标准GB/T 29768的要求,具有低功耗、面积小的特点。该设计采用多时钟域设计、操作数隔离、电路复用等低功耗技术。并且使用Modelsim进行功能验证,验证结果符合预期。采用GSMC 0.13μm工艺,经过逻辑综合和功耗分析,数字基带功耗为2.63μW,布局布线后面积为0.045mm2,满足设计需求。

关键词： 物联网   RFID   安全认证协议   设计  

摘要： 物联网以计算机技术作为支撑,借助电子产品码、射频识别技术,可以构建出关联万物的网络体系。为了发挥物联网技术在各个领域中的便捷性,提高RFID系统的安全认证水平,本文基于RFID安全认证协议进行研究与改进,分析基于物联网的轻量级RFID双向认证协议研究和设计情况,从而充分发挥出物联网、RFID技术的良好功效与作用。

关键词： 5G   捐血站   射频识别技术   人脸识别技术   电子标签技术   数智化  

摘要： 持续提升献血者的献血体验和满意度是采供血机构始终追求的目标。以深圳市血液中心观澜湖捐血站为试点,充分发挥5G专网高速率、低时延、大连接等特点,融合射频识别、人脸识别、自动采血、电子标签等技术,在协同工作模式下建立了5G+捐血站数智化应用。这减轻了采供血人员的工作压力,提高了工作效率,提升了采血服务质量,血液安全管理水平得以提升,促进了无偿献血的发展。

关键词： RFID   cryptography   IoT   smart cards   security   systematic literature review  

摘要： The Internet of Things (IoT) concept is tremendously applied in our current daily lives. The IoT involves Radio Frequency Identification (RFID) as a part of the infrastructure that helps with the data gathering from different types of sensors. In general, security worries have increased significantly as these types of technologies have become more common. For this reason, manifold realizations and studies have been carried out to address this matter. In this work, we tried to provide a thorough analysis of the cryptography-based solutions for RFID cards (MIFARE cards as a case study) by performing a Systematic Literature Review (SLR) to deliver the up-to-date trends and outlooks on this topic.

关键词： Tin   RFID tags   Antenna measurements   Semiconductor device measurement   Frequency measurement   Sensors   Power measurement   Analog sensor   power-oriented   radio frequency identification (RFID)-based sensors   setup-independent   ultrahigh-frequency RFID (UHF RFID) technology  

摘要： Ultrahigh-frequency radio frequency identification (UHF RFID) with a transducer-integrated antenna offers a cost-effective sensing solution for industrial applications. However, the analog backscattered signal contains the coupling effects between the antenna's nearby environment and the unknown measurement setup, such as mutual distance and orientation between the read/write device (RWD) and sensor tags, and line-of-sight obstruction, which affects measurement accuracy. This article proposes an optimal power-oriented setup-independent technique that utilizes commercially self-tuning RFID tags to extract the environment in the vicinity of the antenna, independent of the measurement setup. The concept is based on an observation that the level of the radiated power of the RWD and the received power of the self-tuning RFID IC are linearly regressed. The condition of the environment is identified by the self-tuned value from the RFID chip under an optimal chip impedance. In the offline state, the optimal received power level is determined to maximize the pairwise Euclidean distance of the tuned values of the environment state near the tag. The radiated power level of the RWD is adjusted linearly to implement the sensing at the optimal power level. A water-filling sensor tag operated with polyvinyl chloride (PVC) pipes is demonstrated. Experiments show that the proposed system provides accurate sensing information under different measurement setups. The RFID tags can also be used in installations with heterogeneous environments. The proposed technique has been experimentally validated by applying it to two sizes of PVC pipes, confirming the sensing accuracy and adaptability.

关键词： Triphenylamine-naphthalene chalcone   Aggregation induced emission   Mechano-fluorochromism   Solvato-fluorochromism   Water -based flexo ink   RFID   Anticounterfeiting  

摘要： Pigments with unique optical features are always sought after in realizing superior security features to protect authentic documents/products against forgery. The present study reports the synthesis of triphenylaminenaphthalene chalcone (TPA-NC) with fascinating optical features: solvato-fluorochromism, mechano-fluorochromism, and aggregation-induced emission. The flexo print obtained on UV dull paper using water-based eco-friendly UV fluorescent ink with TPA-NC as pigment displayed good adhesion, resistance to abrasion, light fastness, and favourable electrical parameter values, which could be well utilized in security documents and developing OTFTs in banknotes to prevent them from being forged. Moreover, the printed paper samples could impart superior features including solvent fugitiveness, penetrating fluorescence, and mechanical stimuli responsive variations in emission color for achieving multilevel security. The security ink prepared using the thermally stable and biocompatible TPA derivative could generate a robust platform for tamper-detection, validation of genuine documents/products and in marking technology. Moreover, an ultra-high radio frequency identification (RFID) antenna is designed to resonate at 2.35 GHz. The hybrid arrangement has steady radiation characteristics for electronic anticounterfeiting applications.

关键词： Authentication   AVISPA   ECC   Internet of Things   RFID system  

摘要： Nowadays, the research on security authentication for radio-frequency identification (RFID) systems has become a building block of Internet of Things (IoT). Accordingly, the question how to address the security challenge in RFID systems is a critical topic. Besides, the development of an appropriate RFID authentication protocol should be considered as an important encryption protocol to guarantee the security of the exchanges, since it could provide authentication between the tag and the server. Thus, many research based on ECC have been conducted in this area to address the security requirements of the RFID system. To overcome the limitations of the existing schemes and to achieve both security and efficiency together for the IoT, we introduce a novel and efficient RFID authentication protocol-based Elliptic Curve Cryptography (ECC) to maintain security between RFID cards, card readers, and servers. The proposed protocol ensures security requirements and achieves mutual authentication. A comparison with the most recent protocols is performed in terms of security strength and computational performance. Finally, the suggested protocol is analyzed with the AVISPA tool. Based on the simulation findings, our protocol has demonstrated a high level of security;thus, it will be appropriate for a majority of IoT implementations. © 2023, The Author(s), under exclusive licence to Springer Nature Singapore Pte Ltd.

关键词： RFID   Chipless tag   Backscattering   RCS   Green IoT  

摘要： The proposed research discusses an innovative, fully passive, data-dense, and compact 15 x 15 mm(2) chipless radiofrequency identification tag. This tag possesses a 15-bit data, hence yielding 2(15) unique ID combinations. Due to data-dense structure the tag has bit density of 6.67 bits/cm(2). The proposed tag is optimized and analyzed for different flexible laminates that includes Rogers (RT/duroid((R))/5880), Kapton((R))HN, PET, and HP-photopaper. The printability of tag is achieved by using silver nanoparticle-based conductive tracks. The conductivity of silver ink is 9 x 10(6) S/m. The fully printable tag structure optimized with HP-photopaper substrate and silver nanoparticle-based ink hits the concept of green electronic because of organic nature of paper substrate. As paper has tendency to absorb moisture, therefore, with increasing humidity the tag behaves as humidity sensor. Due to the attractive features of the tag such as robustness, flexibility, simple printing, and need of budget friendly extensible substrates it can be located over rough places to execute sensing.

关键词： IoT   RFID   passive sensing   contactless state detection  

摘要： Vibration is a normal reaction that occurs during the operation of machinery and is very common in industrial systems. How to turn fine-grained vibration perception into visualization, and further predict mechanical failures and reduce property losses based on visual vibration information, which has aroused our thinking. In this article, the phase information generated by the tag is processed and analyzed, and MFD is proposed, a real-time vibration monitoring and fault-sensing discrimination system. MFD extracts phase information from the original RF signal and converts it into a Markov transition map by introducing White Gaussian Noise and a low-pass filter for denoising. To accurately predict the failure of machinery, a deep and machine learning model is introduced to calculate the accuracy of failure analysis, realizing real-time monitoring and fault judgment. The test results show that the average recognition accuracy of vibration can reach 96.07%, and the average recognition accuracy of forward rotation, reverse rotation, oil spill, and screw loosening of motor equipment during long-term operation can reach 98.53%, 99.44%, 97.87%, and 99.91%, respectively, with high robustness.