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报告分类:外文技术报告

  • 3431.基于GIS的红外热成像的电网故障信息采集系统

    [信息传输、软件和信息技术服务业] [2014-07-18]

    Infrared temperature measurement technology is an important means that early detection of equipment external overheating fault and internal insulation fault,and advanced detection methods of power equipment condition monitoring.Infrared temperature measurement technology found the hidden dangers of electrical equipment heating of the external connection points,has been widely applied in power system.With comparing the original ant colony optimization,this paper presents an improved weighted Ant Colony Optimization path planning algorithm based on Infrared image acquisition noise reduction processing and combining WCDMA network transmission mode,and constitute a visual background management system with rural power network.The system could capture power equipment infrared images and reduction noise simply,send it to the background server through the 3G network,for artificial auxiliary to predicting grid failure,scientific planning repair inspection path with improved navigation algorithm,and improve the stability of the power grid operation.
    关键词:电力系统;红外图像;分销网络;导航检修;蚁群优化
  • 3432.用于未来电力网络中的电力系统运行与电力市场工具的高性能计算应用

    [电力、热力、燃气及水生产和供应业] [2014-07-18]

    Development and application of SmartGrids or Intelligrids, including roll-out of smart meters and electrical vehicles, is of a great importance if the UK and other countries are to achieve significant carbon emission reductions and realize sustainable energy systems. These new grids will offer the opportunity to increase the level of renewable energy integrated into the system. They will also allow customers, including small households, to actively participate and adjust their demand depending on energy availability and price. This will further lead towards improved energy efficiency, as well as offer possibilities to reduce overall consumption and reduce or postpone investments into new large generation and infrastructure facilities. To achieve these goals, a number of technical, economical and policy issues need to be addressed and resolved. The development of new generations of extremely fast software tools that can solve power system problems with large number of nodes will also be important to help resolve these issues. For example, distribution system and network operators, as well as trading entities such as aggregators, will get a better coordination of system operation though the possibility to engage with even smaller generators, and especially smaller customers. This control at lower voltage levels will allow for the aggregation of responses which will then propagate to higher voltage levels. Currently, the discussion regarding the operation of future power systems is looking into two different options. One is to develop methodologies that will allow decentralization of network operation with the reduced level of coordination at the high level of system operation. However, the new software developed to exploit the benefits of the HPC architecture may open a possibility for businesses and policy makers to investigate and compare operation of centralized vs. decentralized operation over areas with large number of participants.. These new HPC power system analysis tools will enable more frequent price signal calculations and bring the possibility to define policies which will ensure engagement with customers to reduce their energy consumption or shift it towards off-peak periods, as well as allow for the coordination of charging of electric vehicles and their use as storage devices. Such tools will be useful for both decentralized and centralized operation, however they will be crucial for the latter.
    关键词:电力系统;智能电网;高性能计算系统;HPC架构
  • 3433.无线传感器网络网关节点的设计与实现

    [信息传输、软件和信息技术服务业] [2014-07-18]

    this paper presents the design and realization of wireless sensor network gateway nodes based on s3c2410 Processor.And introduced the design of gateway hardware and software.Also introduced the implementation method of software.A new data transmit protocol was designed to eliminate the differences between ZigBee protocol and TCP/IP protocol,and this paper also designed a data transmit management module and data communicate module.This gateway can convert the data between ZigBee wireless sensor network and internet.This gateway has a good extensibility.
    关键词:传感器网络;以太网嵌入式网关;无线局域网
  • 3434.安全的无线传感器网络数据聚合研究

    [信息传输、软件和信息技术服务业] [2014-07-18]

    Wireless sensor networks are often deployed in open or even hostile environment,its security problem is very prominent,Data aggregation is easily to be attacked for security during the specific implementation process.In order to reduce the transmission of redundant data and enhance security,this article proposed a secure data aggregation and authentication scheme,.data was gathered according to the mode code,collection data was transmitted in encrypted form which will be selected nodes,ensured the confidentiality of the data; A session key was generated and delaied aggregation and authentication by using counter,ensured the integrity,authenticity and freshness of data during the transmission.The security analysis showed that the program had higher security which resisted the attack initiativly,node compromise attack and select forwarding attack and other malicious behaviors.
    关键词:无线传感器网络;数据聚合;密钥管理;数据验证;网络安全
  • 3435.基于TinyOS的矿井瓦斯远程监控系统的设计

    [信息传输、软件和信息技术服务业] [2014-07-18]

    Monitoring system design of mine gas Monitoring System were designed according to the traditional lacked of the real-time and early warning functions and so on problems.A multi-hop sensor network based on TinyOS is designed.The system is based on hierarchical network architecture.The software design principle based on TinyOS is introduced,which can realize the multi-hop communication.A simple Ant colony algorithm is designed in this sensor network to improve the network lifetime.According to simulation results and Test Research,this system can efficiently realize the multi-hop data communication and reliable.
    关键词:传感器网络;蚁群算法;监控系统;设计
  • 3436.匹兹堡塔斯基吉前列腺培训计划

    [医药制造业] [2014-07-18]

    Prostate cancer disproportionately afflicts African-American men. As such, we feel that it is critically important to recruit researchers from this population if we are to conquer this disease. Numerous programs have attempted to recruit minorities to biomedical research and prostate cancer in particular. Often this involves a short period of research immersion during a summer semester. However, it has been shown that many of these trainees do not persevere in the selected area due to the singular nature of the experience. Our goal is to formalize a program to broaden the scope of and enlarge Tuskegee University s prostate cancer research , which will be accomplished through tatargeting interested undergraduate students early during their science studies at Tuskegee University and enabling them to participate in summer research and education training periods at the University of Pittsburgh and the University of Pittsburgh Cancer Institute as part of their overall prostate cancer education.
    关键词:教育;肿瘤;前列腺癌;肿瘤生物学
  • 3437.轨道回避目标跟踪和传感器管理

    [计算机、通信和其他电子设备制造业] [2014-07-18]

    In this chapter, we consider the sensor management problem for tracking space targets where the targets may apply evasive maneuvering strategy to avoid being tracked by the space borne observers. We first study the case of single target tracking by a single observer and formulate the pursuit–evasion game with complete information.
    关键词:传感器;轨道;人工卫星;博弈论;空间监测
  • 3438.ATMELSAM3单片机在国家电网电力收集器中的应用

    [电力、热力、燃气及水生产和供应业] [2014-07-18]

    The article describes how to use MCU that the latest low-cost of ATMEL SAM3 series to achieve the ideas and implementation methods of smart grid collector,and elaborates the specific programs from hardware to software implementation process.The schemes has the advantages of low-cost,high-performance,and high-reliability and meets the actual needs of hardware resources,the demanding requirement of cost-performance and reliability in the power industry,and now it has been applied in the National Grid collector.
    关键词:电力系统;ATMEL SAM3N;电力收集器;智能电网
  • 3439.无线传感器网络中基于假设检验的时钟同步算法的多模型卡尔曼滤波器

    [计算机、通信和其他电子设备制造业] [2014-07-18]

    Accurate and efficient clock synchronization algorithm is very important in Wireless Sensor Networks (WSN).Considering the physical nature of sensors,a multi-model kalman filter clock synchronization algorithm based on experiments and hypothesis testing theory is proposed.The sensor experiments on the base of TelosB platform demonstrate that sensor clock system switches between different models.Based on this observation,a general multi-model kalman filter to describe clock offset is presented.Hypothesis testing method is used to switch the model between the first-order kalman filter and second-order kalman filter.Experiments show that the proposed algorithm can trace clock offset effectively.
    关键词:传感器网络;多模型卡尔曼滤波器;假设检验;时钟偏移量
  • 3440.用于生物和医疗诊断的模块化的、健壮的、便携式的传感平台

    [计算机、通信和其他电子设备制造业] [2014-07-18]

    The ability to conveniently and immediately test and diagnose in a diverse and rapidly changing environment is critical for field diagnostics. Smart biomedical sensors employ many different diagnostic/therapeutic methodologies; however, an ideal system would include the ability for results to be shared instantaneously with all members of the team through a software interface. We discuss our efforts towards the development and use of a robust, mobile platform (Android-based smart phone) that incorporates stable molecular recognition elements in sensor development. The inexpensive, compact, robust, archival, and portable design is ideal for rapid field diagnostics.
    关键词:诊断(医学);生物医学;计算机程序;配体;移动计算
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