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找到报告 39653 篇 当前为第 3205 页 共 3966

所属行业:计算机、通信和其他电子设备制造业

  • 32041.基于物联网GSM信息采集设计的物流信息系统

    [信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2014-09-05]

    On the analysis of logistics information collecting techniques (including the Unified Information System,The Internet Of Things,Global System for Mobile Communication),the paper puts forward solutions and innovative ways to operate the system based on Unified Information System (UIS) in The Internet Of Things (IOT).GSM information collection,which is based on the UIS,has integrated the technologies of Radio Frequency Identification (RFID),GSM,and Computer Telecommunication Integration (CTI).With the unique characteristics of business processes of UIS and IOT,the systematic design has carried out the technical construction and interactive system design on the brandboard adjustment program of GSM information collection model,the anti-collision technique as well as Network Communication Program of GMS model controlled by AT command.This design has realized the exchange between the logistics information collection and processing and GSM network by the way of adopting the TC35i Single Chip Processor Control System,as a result,it has formed the distributed link for the logistics information system,and identified the feasibility of GSM information collecting system applied in this system.
    关键词:物联网;物流;统一信息系统;GSM信息采集
  • 32042.2013-2014年中国网络视频市场竞争分析

    [计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-09-05]

    本文分别从2013-2014年中国网络视频市场概述、市场竞争等几个方面进行了分析及评论。
    关键词:网络视频;市场概述;市场竞争分析
  • 32043.物联网的研究架构及关键技术

    [计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-09-05]

    The technology of the Internet of Things (IoT) has attracted highly attention of academia,industry,and news media.There are still many open issues in the definition,internal principles,architectures and system models of the IoT.Through the analysis of current technical materials,we first analyze three basic concepts and features of the IoT.Then we introduce the architecture composed of three layers of the IoT.Furthermore we summarize the key technologies of the IoT.Finally several development proposals are suggested for the loT.
    关键词:物联网;电子产品代码;网络架构;RFID系统
  • 32044.基于物联网的可追溯信息系统的统一物流托盘

    [计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-09-05]

    The paper focuses on the intelligent logistics pallet,networking,traceability information technology and unified logistics information system,and puts forward unified traceability information system of intelligent logistics pallet based on the Internet of things (IOT),displaying innovative system realization method and technical system.IOT intelligent logistic pallet traceability system is an integrated fusion application of RFID,GIS,GPS,computer telecommunication integration together with Intemet technology; in system design and implementation,TOT and RFID coupling mechanism,CTI and API interface programming are adopted for construction of three intelligent system service architecture of logistics pallet traceability system including application,business and physics; in the logistics pallet regular operation,reading and writing RFID equipments,labels and telecommunications network,Internet,and other unified information communication mode are fused into the intelligent logistics information system,so as to realize the intelligent logistics pallet identity identification and traceability function.The system test output results indicate that,intelligent logistics pallet unified information system is equipped with intelligent recognition,management and tracing function and business process reengineering capacity including production promotion,distribution,transport logistics and allocation.
    关键词:物流;物联网;统一的信息;智能跟踪系统
  • 32045.启用测试架构的物联网业务生成和部署

    [信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2014-09-05]

    The information generated from the Internet of Things (IoT) potentially enables a better understanding of the physical world for humans and supports creation of ambient intelligence for a wide range of applications in different domains. A semantics-enabled service layer is a promising approach to facilitate seamless access and management of the information from the large, distributed and heterogeneous sources. This paper presents the efforts of the IoT.est project towards developing a framework for service creation and testing in an IoT environment. The architecture design extends the existing IoT reference architecture and enables a test-driven, semantics-based management of the entire service lifecycle. The validation of the architecture is shown though a dynamic test case generation and execution scenario.
    关键词:物联网;自动化测试推导;语义互操作性测试服务
  • 32046.基于模糊聚类协议的高能效无线传感器网络

    [计算机、通信和其他电子设备制造业] [2014-09-05]

    Minimization of energy consumption is one of the most important research areas in Wireless Sensor Networks.Nowadays,the paradigms of computational intelligence (CI) are widely used in WSN,such as localization,clustering,energy aware routing,task scheduling,security,etc.Though many fuzzy based clustering techniques have been proposed earlier,many of them could not increase the total network life time in terms of LND (Last Node Dies) with comparing to LEACH.In this paper,a fuzzy logic based energy-aware dynamic clustering technique is proposed,which increases the network lifetime in terms of LND.Here,two inputs are given in the fuzzy inference system and a node is selected as a cluster head according to the fuzzy cost (output).The main advantage of this protocol is that the optimum number of cluster is formed in every round,which is almost impossible in LEACH (low-energy adaptive clustering hierarchy).Moreover,this protocol has less computational load and complexity.The simulation result demonstrates that this approach performs better than LEACH in terms of energy saving as well as network lifetime.
    关键词:传感器网络;模糊逻辑;网络的生命周期;聚类;节能
  • 32047.基于向量参数化的四轮驱动全方位移动机器人最小能量控制

    [信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2014-09-05]

    Four-wheel drive omni-directional mobile robots (FDOMRs) usually carry limited energy and have to accomplish their tasks before deadlines.Energy saving can be achieved in several ways,and one of that is determining a velocity trajectory.To find the minimum energy trajectory,a practical cost function is chosen as the total energy drawn from the batteries.However,the cost function is a free final time optimal control problem,which is usually complex and has no explicit solution.A normalized time variable is used to transform the original problern into a fixed final time optimal control problem,which is solved by using uniform control vector parameterization.Various simulations are performed and the consumed energy is compared to the normal control method that without minimum energy consumption control.Simulation results show that the energy saving is much more compared to the traditional control,the operational time of the FDOMR with given batteries is lengthened and the efficiency of battery is improved.
    关键词:最小能量控制;速度轨迹;向量参数;节能
  • 32048.物流园区信息化创新研究

    [计算机、通信和其他电子设备制造业,信息传输、软件和信息技术服务业] [2014-09-05]

    Logistics park informatization is the general development trend of logistics park,this paper attempts to:combine logistic park's business model with informatization,construct a new logistics park innovative profit mode,put internet of things fusion in the entire process of logistics park construction and operation,create new informatization operation platform.
    关键词:信息化;创新盈利模式;物联网
  • 32049.基于IPv6技术的物联网施工安全架构

    [信息传输、软件和信息技术服务业,计算机、通信和其他电子设备制造业] [2014-09-05]

    IPv6 has huge address space,while 128 bit IPv6 address is divided into two parts,namely the address prefix and the interface address.IPv6 provides a wide range of security policies for Internet of Things safety system.The security of the Internet of Things applications interface IPv6 address can be used to identify the node.This paper proposes construction security architecture of the Intemet of Things based on IPv6 technology.In the allocation of the state address safety issues and mobile IPv6 binding buffer security update issues,are able to meet the security needs of the Internet of Things.
    关键词:IPv6;物联网;IP地址;感知层
  • 32050.语境菜单的真实世界:通过头戴式红外瞄准控制物理设备

    [信息传输、软件和信息技术服务业,电气机械和器材制造业,计算机、通信和其他电子设备制造业] [2014-09-05]

    We introduce a novel method for selecting and controlling smart appliances in physical spaces through a head-worn computing device with near-eye display and wireless communication. We augment a commercial wearable computing device, Google Glass, with a narrow-beam infrared emitter for this purpose. This configuration yields a usable beam width of 2 to 4 feet (60 to 120 cm) for targeting at room scale. We describe a disambiguation technique if infrared targeting hits multiple targets simultaneously. A target acquisition study with 14 participants shows that selection using head orientation with our device outperforms list selection on a wearable device. We also report qualitative data from using our device to control multiple appliances in a smart home scenario.
    关键词:红外设备;移动计算;远程控制;智能家居;无线通信
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