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RBSA:一种基于重复苏醒的道路入侵目标扫描算法
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作者 陈良银 李璋华 +5 位作者 王朝龙 张靖宇 颜秉姝 刘燕 殷锋 陈朋朋 《计算机研究与发展》 EI CSCD 北大核心 2014年第5期974-983,共10页
目标检测是无线传感器网络的重要应用场景之一.基于重复苏醒的扫描算法(repeatedly-woken based scanning algorithm,RBSA)是一种基于低占空比无线传感器网络(wireless sensor networks,WSNs)并用于道路入侵目标检测的算法.它充分利用... 目标检测是无线传感器网络的重要应用场景之一.基于重复苏醒的扫描算法(repeatedly-woken based scanning algorithm,RBSA)是一种基于低占空比无线传感器网络(wireless sensor networks,WSNs)并用于道路入侵目标检测的算法.它充分利用了目标总是沿着道路、以有限的速度前进及道路拓扑图较容易获得的先决条件,并融入了重复苏醒的虚拟扫描波的思想,大大延长了网络生命期.该算法通过让一个节点在一个网络工作周期内苏醒-睡眠k次,或利用相邻节点间的检测重叠区域进一步增加了节点的睡眠时间,使节点的占空比得以最小化,从而明显延长了网络生命期.仿真实验表明,在典型参数配置下,与原有经典扫描算法相比,RBSA算法的网络生命期提高了80%,具有显著优势. 展开更多
关键词 无线传感器 重复苏醒 低占空比 道网监测 虚拟扫描算法
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Design of Congestion Control Strategy Based on Pipeline Flux Leak Monitoring Networks 被引量:1
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作者 周鹏 《Journal of Donghua University(English Edition)》 EI CAS 2009年第5期554-558,共5页
Flow against pipeline leakage and the pipe network sudden burst pipe to pipeline leakage flow for the application objects,network congestion avoidance strategy is designed in pipeline leak monitoring.Based on the prop... Flow against pipeline leakage and the pipe network sudden burst pipe to pipeline leakage flow for the application objects,network congestion avoidance strategy is designed in pipeline leak monitoring.Based on the property of Markov chain for network data,a new estimator with particle filter is proposed for congestion control in this paper.The proposed scheme can predict the traffic patterns by the decision-making model.To compare with previous scheme based on fuzzy neural network,the proposed scheme can adaptively adjust the network rate in real-time and reduce the cell loss rate,so that it can avoid the traffic congestion.Simulation results show that network congestion avoidance strategy with particle filter can improve the bandwidth utilization,Transmission Control Protocol (TCP) friendliness and reduce the packet drop rate in Pipeline Flux Leak Monitoring networks. 展开更多
关键词 transmission control protocol congestioncontrol particle filter cell loss rate QoS networks
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Research and Monitoring of Metro Tunnel Deformation based on the Technology of the Internet of Things
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作者 Xiaowei Du Yongtao Gao 《International Journal of Technology Management》 2013年第1期11-13,共3页
After a long subway tunnel operators will produce cross-sectional deformation. Articles designed vehicle laser ranging device tbr continuous measurement of tunnel wall to test their defomaed state. The paper also desc... After a long subway tunnel operators will produce cross-sectional deformation. Articles designed vehicle laser ranging device tbr continuous measurement of tunnel wall to test their defomaed state. The paper also describes the tunnel cross-section deltbrmation measurement method, contour titting principles and error analysis and networking technology for wireless data transmission methods. The detection system is designed to achieve a tunnel section of the structural safety testing and deformation that may occur timely disaster warning, the safe operation of the subway tunnel to provide effective protection. 展开更多
关键词 Internet of Things technology sectional defom^ation laser rangefinder
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