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36491.加大信息投入强度切换新经济发展模式
[信息传输、软件和信息技术服务业] [2014-07-18]
关键词：信息投入；新经济发展模式
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36492.大数据时代的安防行业发展
[信息传输、软件和信息技术服务业] [2014-07-18]
分析大数据发展给传统安防行业、企业安防 带来的影响与机遇，探索将大数据技术与云计算、物联网等技术在安防领域的应用组合模式。最后，结合目前大数据在安防工程应用中出现的问题，思考其发展前景。
关键词：大数据；安防行业；物联网
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36493.用于可重复使用源数据集元数据（RSDM）V2.4的NAVAIR便携式源码倡议（NPSI）标准
[信息传输、软件和信息技术服务业] [2014-07-18]
The mission of NPSI is to provide maximum database reuse across Type/Model/Series platforms to lower the life cycle cost of out-the-window visual terrain, 3-D models, and sensor databases, also adding dataset archive capability, and short-notice distribution services. The metadata and metadata architectures are used to facilitate data discovery, data understanding, and effective data distribution. The metadata is also employed for NPSI dataset archiving and distribution. This document describes the metadata schema specified for NPSI data interchange.
关键词：数据库；标记语言；元数据；地形模型；计算机仿真
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36494.多语言环境中网络传感系统抽象建模研究
[信息传输、软件和信息技术服务业] [2014-07-18]
Developing highly efficient and reliable embedded system demands hardware/software co-design.To be high-configurable embedded systems,designers seek for transaction-level modeling and component based development.Our approach employ platform-based design and component-based design and apply it to a networked sensor system.We introduce a multiple-language environment unified component-based model and apply it to co-simulation of sensor system instances.The case studies demonstrate that our approach is readily applicable to real-world networked sensor systems and reduces the co-simulation complexities.
关键词：系统建模；高配置；事务级；设计；协同仿真
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36495.无线传感器网络中基于RSS本地化的混合隐马尔可夫模型
[信息传输、软件和信息技术服务业] [2014-07-18]
We propose a method of RSS-base localization in WSN (Wireless Sensor Network),called Hybrid HMM,to improve the stability of node localization based on RSS (Received Signal Strength).This model utilizes HMM (Hidden Markov Model) to take into account the time factor when receiving the RSS sequence,and converts the action of ranging into an operation of classification.For the received RSS used for localization,our Hybrid HMM will compare it with the preset RSS threshold value,and put the result into one of two categories for subsequent processing:If the received value is higher than the threshold value,the distance value will be drawn from the signal propagation model.If lower,the information will be obtained from a trained HMM.Experimental results show that the Hybrid HMM method can greatly improve the localization accuracy.
关键词：无线传感器网络；定位；接收信号强度；隐马尔科夫模型
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36496.基于虚拟技术的有毒气体监测系统的设计和方案
[信息传输、软件和信息技术服务业] [2014-07-18]
This paper took wireless sensor network (WSN) as the data transmission way and used the LabVIEW platform,and design muitifunctional virtual instrument system with signal acquisition,demonstration,analysis,storage and the historical data inquiry to implement remote operation of gas monitoring.In terms of hardware design,the wireless sensor nodes and radio frequency circuit were mainly designed,and in terms of software design.the wireless communication procedures and LabVIEW program were mainly designed.The data of measured objects were collected in real time by wireless sensor nodes,and were sent to wireless main nodes through the ZigBee wireless technology.The wireless main nodes received data of all wireless sensor nodes,and the data are encapsulated into USB package and submitted to PC,then were processed through LabVIEW platform.The system was characterized with its low power consumption,high precision,simple design,convenient operation,friendly interface and good reliability.
关键词：WSN；虚拟仪器；无线局域网；气体监测
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36497.汽车企业竞抢车联网“先手棋”
[信息传输、软件和信息技术服务业,汽车制造业] [2014-07-18]
关键词：汽车企业；车联网；“先手棋”
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36498.一个基于MAS的集群计算平台的现代环境管理体系
[信息传输、软件和信息技术服务业] [2014-07-18]
To meet the requirement of dispatch and control in Smart Grid environment, a MAS-Based cluster computing platform is developed for modern Energy Management System(EMS). Multi-Agent technology is used to develop the high-performance computing platform. "Double-Dimensional Federal Architecture" is proposed and used to implement the advanced application software of modern EMS. A middleware named "WLGrid" is implemented to simplify software development and to integrate distributed computers in Electric Power Control Center(EPCC) into a "Super Computer". Methods of "Task Partition", "Concurrent Dispatching Strategy", "Dynamic Load Balancing" and "Priority-based Resource Allocation" are introduced to accelerate the computation and to improve the real-time property of the whole system. Onsite tests are done and the results are reported to show the effectiveness of these methods.
关键词：智能电网；超级计算机；现代能源管理系统
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36499.促进京津冀一体化进程北京电信推出2元畅游包
[信息传输、软件和信息技术服务业] [2014-07-18]
关键词：京津冀一体化；北京电信；2元畅游包
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36500.推动4G时代企业移动应用创新
[信息传输、软件和信息技术服务业] [2014-07-18]
关键词：4G时代；移动应用；创新
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