共查询到20条相似文献,搜索用时 140 毫秒
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近年来,随着商品住宅小区建设程度的不断加快,人们对住宅的安全性和智能化的需求正变得愈加迫切.构建智能小区有利于改善生存环境提高居民舒适性和安全性.智能小区安防综合管理系统采用了RFID技术实现人员、车辆管控,并且利用无线传感器网络技术实现家居安防功能. 相似文献
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针对传统粮仓的监管问题,设计一种基于语音识别与RFID技术的智慧粮仓系统,通过结合ASRM08-B语音模块、RFID技术、无线传感器网络、以太网通信技术实现。该系统由粮情监测、安防系统、智能联动和云平台构成。ZigBee终端节点通过传感器采集粮仓环境数据,通过无线方式传送给ZigBee协调器,并使用以太网作为主干网进行数据传输,最后传输到云平台和手机APP进行数据存储、处理和呈现,此外,可以通过语音模块或者手机APP直接与粮仓中设备联动,为粮仓管理系统设计提供了新思路。 相似文献
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针对大部分身份认证方法存在认证方式单一、认证准确性低等问题,文中在医用场景下开展了基于射频技术与智能动作识别的人员身份认证方法研究.在详细论述无线射频识别技术(RFID)及其系统构成后,基于深度学习网络中的t-SNE降维处理、支持向量机动作分类等技术,设计实现了智能动作识别方法.将通过RFID和智能动作识别方法获得的身... 相似文献
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智能传感器无线网络提高采矿作业的安全性 总被引:2,自引:1,他引:1
本文详细介绍先进的智能传感器及无线传感器网络技术及其在采矿这样的恶劣环境中的潜在应用.目的是让采矿工人通过采用基于无线和传感器新技术的安防产品,在随时变化、不可预测、充满危险的工作环境中,能够通过无线、可佩带、智能的技术,实时获取环境以及生理数据,从而有效地管理所面临的危险.电子系统设计工程师将从本文了解如何构建这样一个大型的安防系统. 相似文献
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Radio frequency identification and wireless sensor networks are two important wireless technologies that have a wide variety of applications in current and future systems. RFID facilitates detection and identification of objects that are not easily detectable or distinguishable by using conventional sensor technologies. However, it does not provide information about the condition of the objects it detects. WSN, on the other hand, not only provides information about the condition of the objects and environment but also enables multihop wireless communications. Hence, the integration of these technologies expands their overall functionality and capacity. This article investigates recent research work and applications that integrate RFID with sensor networks. Four classes of integration are discussed: integrating tags with sensors, integrating tags with WSN nodes and wireless devices, integrating readers with WSN nodes and wireless devices, and a mix of RFID and WSNs. Finally, a discussion of new challenges and future work is presented. 相似文献
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介绍了ZigBee无线传感器网络,将ZigBee技术应用到智能家居系统中。提出了一种以ZigBee技术为基础的智能家居系统设计方案。阐述了无线传感器网络的总体构成,以CC2430无线芯片为核心,选取了合适的ZigBee模块进行了硬件电路设计。研究并分析了ZigBee技术。设计并实现了串口收发程序,传感器程序,以及节点间的无线通信程序,并根据ZigBee协议,使节点组成树状网络,最终实现系统的监测与控制。结果表明,本系统运行稳定,达到了设计目的,有着广泛的应用前景。 相似文献
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基于IPv6技术的无线传感器网络是一门新兴的网络技术,人们对它的研究尚处于起步阶段。在此主要论述IPv6技术在无线传感器网组网应用,对使用无线与有线相结合的通信方法,通信协议和算法的研究,使得视频监控系统信号,通信系统信号以及检测系统信号在同一个通信平台上互不干涉的平稳的传输信息。就IPv6无线传感器网络与现有网络的互联互通方式,关键技术和算法等方面进行概述。 相似文献
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TelG Mote: A Green Wireless Sensor Node Platform for Smart Home and Ambient Assisted Living
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Mohd Rozaini Bin Abd Rahim Rozeha A. Rashid Norsheila Fisal Zubair Khalid Abdul Hadi Fikri Abd Hamid 《电子科技学刊:英文版》2016,14(3):211-219
The wireless sensor network (WSN) consists of sensor nodes that interact with each other to collectively monitor environmental or physical conditions at different locations for the intended users. One of its potential deployments is in the form of smart home and ambient assisted living (SHAAL) to measure patients or elderly physiological signals, control home appliances, and monitor home. This paper focuses on the development of a wireless sensor node platform for SHAAL application over WSN which complies with the IEEE 802.15.4 standard and operates in 2.4 GHz ISM (industrial, scientific, and medical) band. The initial stage of SHAAL application development is the design of the wireless sensor node named TelG mote. The main features of TelG mote contributing to the green communications include low power consumption, wearable, flexible, user-friendly, and small sizes. It is then embedded with a self-built operating system named WiseOS to support customized operation. The node can achieve a packet reception rate (PRR) above 80% for a distance of up to 8 m. The designed TelG mote is also comparable with the existing wireless sensor nodes available in the market. 相似文献
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给出了CAN总线无线接入控制模块的电路设计,模块各主要组成部分的作用是:CAN控制器SJA1000,运行CAN协议,为无线传感器网络节点提供CAN总线服务;收发器TJA1050,作为CAN控制器与物理媒体的物理接口,为CAN控制器提供比特流服务;无线传感器节点采用基于TinyOS的GAINS节点,负责数据的缓存和无线传输。给出了基于TinyOS底层通信接口的无线传感器节点的通信协议设计包括流量控制和缓存设计等。目前,该系统已经实现,使用效果良好,对于一般的信息采集无线传输系统设计具有较好的借鉴意义。 相似文献
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In this paper, a review of the authors' work on inkjet-printed flexible antennas, fabricated on paper substrates, is given. This is presented as a system-level solution for ultra-low-cost mass production of UHF radio-frequency identification (RFID) tags and wireless sensor nodes (WSN), in an approach that could be easily extended to other microwave and wireless applications. First, we discuss the benefits of using paper as a substrate for high-frequency applications, reporting its very good electrical/dielectric performance up to at least 1 GHz. The RF characteristics of the paper-based substrate are studied by using a microstrip-ring resonator, in order to characterize the dielectric properties (dielectric constant and loss tangent). We then give details about the inkjet-printing technology, including the characterization of the conductive ink, which consists of nano-silver particles. We highlight the importance of this technology as a fast and simple fabrication technique, especially on flexible organic (e.g., LCP) or paper-based substrates. A compact inkjet-printed UHF ldquopassive RFIDrdquo antenna, using the classic T-match approach and designed to match the IC's complex impedance, is presented as a demonstration prototype for this technology. In addition, we briefly touch upon the state-of-the-art area of fully-integrated wireless sensor modules on paper. We show the first-ever two-dimensional sensor integration with an RFID tag module on paper, as well as the possibility of a three-dimensional multilayer paper-based RF/microwave structure. 相似文献