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关键词： RSSI   location fingerprint   RFID   indoor positioning   IoTs  

摘要： The RSSI-based location fingerprinting method is currently a hot and challenging area of research in indoor positioning algorithms, which uses the degree of signal attenuation during spatial propagation to build a database, match data and ultimately determine the target location. This paper introduces and compares common indoor positioning techniques and algorithms, and elaborates on positioning algorithm improvement methods including signal filtering methods, received signal clustering algorithms and location fingerprint matching optimisation algorithms. Through a comparative analysis of the characteristics of the improved algorithms, a reference direction is provided for the selection of suitable improved location fingerprint fusion algorithms to improve positioning accuracy and efficiency in complex environments.

关键词： 实物ID   智能工器具   出入库   RFID   电力工具  

摘要： 工器具的出入库技术直接影响实物的利用效果。为提高工器具实物的利用率和管理质量,研究基于射频识别(Radio Frequency Identification, RFID)技术构建实物ID,对其进行智能化管理。以电力企业的实物工具管理为例,设计实物的RFID电子标签,同时利用分组帧时隙算法来对其进行防碰撞优化,实现相关实物的出入库智能化管理。实验结果显示,研究提出的方法识别率最高达到94%。因此,该方法可以有效实现电力企业实物工具的智能化管理和工器具的出入库效率,提高实物的周转和使用效率,实现资源的最大化利用。

关键词： RFID技术简介   物流车辆调度系统   自主算法研究和实现  

摘要： 随着信息技术对各个行业的渗透,制造业的管理模式也受到一定程度的变革。尤其是在传统制造企业的物流管理系统中,由于货物采购、对供应商发货、车辆卸货等业务较多,使得工厂有大量的物流车辆进出。原有的人工指挥调度方法应对密集的车辆调度任务已经是捉襟见肘,更无法适应未来更大规模的生产运输任务。基于技术普及和接轨信息为目的,本文就基于RFID的工厂物流车辆调度系统进行简要的分析研究。

关键词： 单片机   RFID   停车位   红外对管  

摘要： 在城市化发展过程中,汽车数量呈现快速增长趋势,城市停车难成为一个十分突出的问题。因此,设计开发一种智能高效的停车位车辆检测装置显得尤为必要。该装置主要包括独立按键、12864液晶显示、RFID射频模块、红外对管等组件。系统通过红外对管检测车辆是否进入或离开停车位,并通过RFID射频模块识别车辆的身份,判断是否有权限进行停车。当车辆进入或离开停车位时,系统会自动检测和更新停车位状态,并在12864液晶显示屏上显示相关信息。当有未经授权的车辆试图停放时,系统会控制相关设备进行警示和防护。本设计方案具有体积小、成本低、功能强大、操作简单、安装方便等优点,适用于停车场、小区等停车管理场所。

关键词： 云计算   建筑项目施工进度   信息集成   RFID技术   施工材料数据标签信息   工程内容   施工进度信息集成管理模型  

摘要： 在对建筑项目施工进度信息进行集成时,由于原始的建筑项目施工进度数据具有多元化的属性特征,导致集成后的施工进度信息精度较低,为此,提出基于云计算的建筑项目施工进度信息集成方法。所提方法先对对建筑项目施工进度数据进行预处理,引入了RFID技术,将原始的施工进度数据转化为以施工原材料为基本单元的形式,并以施工进度为导向,构建了包含名称、类别、电子编码以及对应工程内容的施工材料数据标签信息,后基于云计算设计施工进度信息集成管理模型,按照工程内容对其进行分类处理,对不同材料消耗情况进行统计,结合具体工程内容的设计要求以及实际施工材料的使用总量,实现对施工进度信息集成管理模型的构建。在测试结果中,设计建筑项目施工进度信息集成方法实现了对不同时刻施工进度的准确获取。

关键词： Radio frequency identification   healthcare services   security   privacy  

摘要： RFID technology has proven very useful in many healthcare applications, starting with medical asset tracking, continuing with staff tracking, and reaching medical event and procedure tracking. Security and privacy properties play a fundamental role in this range of applications. The protocols proposed so far highlights many techniques for analyzing these properties, making it difficult to compare the protocols with each other most of the time. In the case of lightweight protocols, the comparisons are even more challenging to achieve because these resort to idealizations that usually have no practical support, such as protocols based on physically unclonable functions (PUFs), or because no security and privacy model is known so far. This paper draws attention to the HPVP model as a possibility for uniformly studying healthcare RFID protocols’ security and privacy properties. We highlight two general patterns that, once encountered in RFID protocols, show that they do not satisfy privacy or mutual authentication requirements. We then illustrate these templates through several proposed RFID protocols for use in healthcare. Then, we propose a Classification of healthcare services based on an extended hierarchy of HPVP privacy classes, and we highlight RFID protocols that reach the respective levels of privacy.

关键词： 射频识别   捷联惯导系统   组合导航   自适应卡尔曼滤波   仿真与实验分析  

摘要： 在室内导航定位中,射频识别(Radio Frequency Identification,RFID)技术具有信号穿透性强、成本低廉等诸多优点,能够有效代替GPS完成室内组合导航。针对室内惯性导航误差发散和滤波中噪声参数不确定的问题,提出了基于自适应卡尔曼滤波(Adaptive Kalman Filtering,AKF)的RFID/SINS组合导航系统,通过RFID定位系统抑制惯性导航误差发散,并应用AKF将噪声参数与量测输出参数关联实现实时更新。对AKF和标准卡尔曼滤波(Kalman Filtering,KF)下的RFID/SINS组合导航系统进行了仿真和实验。结果表明,在AKF下组合导航系统平均定位误差降低了10%,位置稳定性提升了7.4%,定位误差保持在0.07 m左右。基于AKF的RFID/SINS组合导航系统能够满足室内高精度定位导航的需求。

关键词： RFID   人脸识别   智能安保  

摘要： 为提升安保信息化和现代化,依托RFID和人脸识别技术,设计了一种高安全性、高智能化的安保系统.该系统主要由"智能支撑平台+智能终端"两个部分组成,可实现安保的多场景、多形态覆盖及实时分析、实时预警,且能够建立"前方感知+后方支撑"的全新安保模式,以期通过安全、智能的科技手段为行业安保赋能.

关键词： Tobacco  

摘要： Tobacco companies a fast-moving consumer goods wholesale enterprises in the storage, procurement, logistics, and distribution of all aspects of the close relationship with warehouse management. This paper takes RFID technology as the theoretical basis and explains the introduction. It finds that FRID is composed of a reader, electronic tag, antenna, and local server as its main components. Then, it proposes to apply RFID technology to manufacturing enterprises and describes the application mode of the relevant manufacturing enterprise system based on RFID. At the same time, based on RFID algorithms and technology, the system of the tobacco enterprise was tested and analyzed, completing the function test and performance test. In the performance test, RFID and PLC technology and industrial Ethernet automatic control system to do the data comparison found that RFID in the system with the increase of the user command response time is still very flexible, to do in more than 18000/s. Subsequently, with the support of RFID, the application in tobacco production was experimentally analyzed to verify the practicality of RFID manufacturing technology in the tobacco production process. © 2024 Peng Wang et al., published by Sciendo.

关键词： Students  

摘要： College education and teaching management are experiencing a transition from traditional modes to informational modes. This paper constructs a management mode for university teaching informatization based on RFID technology and designs the workflow and functions for RFID. For the positioning of student RFID tags on campus, a time-gap ALOHA algorithm is proposed to reduce the collision rate by dividing the processing time of student tags into several time gaps. After obtaining the student tags, an improved K-weighted center-of-mass localization algorithm is proposed for multi-point localization, which makes the weight of multiple known nodes in the process of operation more reasonably distributed through the setting of the weight size. In the simulation test of campus student localization, when the number of beacon nodes is 40, the average error of the K-weighted prime is 6.5%, 4.25%, and 2.1% lower than that of the prime algorithm, weighted prime, and weighted differential prime, respectively. © 2024 Authors. All rights reserved.