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2016 8th Computer Science and Electronic Engineering (CEEC)最新文献

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Network performance optimization using Odd and Even routing algorithm for pipeline network 基于奇偶路由算法的管道网络性能优化
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835899
S. Subramaniam, R. Nilavalan, W. Balachandran, Shariq Mahmood Khan
The revolution on static wireless sensor network (WSN) had gained popularity in remote monitoring especially in oil and gas pipeline integrity. The use of WSN in oil and gas pipelines facilitates real-time data transmission from sensors to the monitoring station located miles away. WSN for pipeline network are critical performance driven communication mechanism due to its unique linear geographical set up. The network performance of linear topology is compromised proportionally to the number of nodes. Such a drawback results in poor delivery ratio, throughput, latency and fairness due to its snowball effect towards the destination node. In this paper, we proposed a novel routing method, Odd-Even Linear Static Routing Path (OE-LSRP) to achieve significant improvements in overall network performance in TCP agent. Various simulation experiments are tested with OE-LSRP in accordance to IEEE 802.11standard to achieve results in making it feasible for the pipeline network.
静态无线传感器网络(WSN)的革命在远程监测特别是油气管道完整性监测中得到了广泛的应用。在石油和天然气管道中使用WSN有助于从传感器到几英里外的监测站的实时数据传输。由于其独特的线性地理结构,无线传感器网络是管网中关键的性能驱动通信机制。线性拓扑的网络性能与节点数量成正比。由于其对目标节点的滚雪球效应,这种缺点导致了较差的投递率、吞吐量、延迟和公平性。本文提出了一种新的路由方法——奇偶线性静态路由路径(OE-LSRP),以显著提高TCP代理的整体网络性能。根据IEEE 802.11标准对OE-LSRP进行了各种仿真实验,取得了在管道网络中可行的结果。
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引用次数: 3
Scalable M2M routing protocol for energy efficient IoT wireless applications 可扩展的M2M路由协议,用于节能物联网无线应用
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835884
Bilal R. Al-Kaseem, H. Al-Raweshidy
Machine devices are capable of processing the events captured by sensors and forwarding them through M2M gateway. Non-uniform energy consumption and extensive use of limited energy resources are the common reasons behind developing new energy efficient routing algorithms and protocols. The aim of this paper is to design hybrid routing protocol for M2M sensor network with multiple mobile sink nodes for IoT wireless applications. The proposed scalable energy efficient clustering mechanism will implicitly solve the network scalability, performance degradation and unbalance energy consumption problems. The simulation results showed that using multiple mobile sink nodes and the proposed clustering algorithm improved the energy distribution and prolong network lifetime, more specifically, the percentage difference between the proposed energy efficient routing protocol and the existing routing protocols showed remarkable enhancement about 80% and 92% in terms of the network lifetime and packets delivered to sink nodes respectively.
机器设备能够处理传感器捕获的事件,并通过M2M网关转发它们。能源消耗不均匀和有限能源的广泛使用是开发新的节能路由算法和协议的共同原因。本文的目的是为物联网无线应用设计具有多个移动汇聚节点的M2M传感器网络的混合路由协议。提出的可扩展节能聚类机制将隐式解决网络可扩展性、性能下降和能耗不平衡等问题。仿真结果表明,使用多个移动汇聚节点和所提出的聚类算法改善了能量分布,延长了网络生存期,具体而言,所提出的节能路由协议与现有路由协议相比,在网络生存期和发送到汇聚节点的数据包方面分别提高了80%和92%。
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引用次数: 4
Optimization of fuzzy logic based for vector control induction motor drives 基于模糊逻辑的矢量控制感应电机驱动优化
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835893
Zulhisyam Salleh, M. Sulaiman, R. Omar, F. A. Patakor
Recently, fuzzy logic controllers have been recognized in induction motor drives systems for their robust performance. Therefore, this paper presents a fuzzy logic (FL) control system based on FL approach for a vector controlled induction motor drives for high performance application. The analysis, design and simulation of the FL controller for vector control induction motor are carried out based on scaling factor and membership functions theory. First, the drives system was simulated with Standard Constant Parameter FL, Design Case Constant Parameter Fuzzy Logic and PI controller. Then the best performances of these controllers were compared to proposed optimized fuzzy logic controller (OFL). The OFL is done by tuning of scaling factor for the change in speed error, Gce to produce a better transient behaviour, and altering the width and moving the peak value positions of membership functions to improve control performance. The results show that the proposed OFL gives better performances in tracking performances and also load disturbances. The test is done in different operating conditions for half rated speed and full rated speed, half and full load condition. The results demonstrates the robustness and the effectiveness of OFL controller for high performance of induction motor drive system.
近年来,模糊控制器以其鲁棒性在感应电机驱动系统中得到了广泛的应用。因此,本文提出了一种基于模糊逻辑方法的矢量控制异步电动机驱动器的高性能模糊控制系统。基于比例因子和隶属函数理论,对矢量控制异步电动机FL控制器进行了分析、设计和仿真。首先,采用标准恒参数模糊逻辑、设计案例恒参数模糊逻辑和PI控制器对驱动系统进行仿真。然后将这些控制器的最佳性能与所提出的优化模糊逻辑控制器(OFL)进行比较。OFL是通过调整速度误差变化的比例因子来实现的,Gce产生更好的瞬态行为,改变隶属函数的宽度和移动峰值位置来提高控制性能。结果表明,所提出的OFL在跟踪性能和负载扰动方面具有较好的性能。试验在半额定转速和全额定转速、半负荷和满负荷的不同工况下进行。结果表明,OFL控制器对异步电机驱动系统的高性能具有鲁棒性和有效性。
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引用次数: 8
Interpolation of low resolution Digital Elevation Models: A comparison 低分辨率数字高程模型的插值:比较
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835891
Hemalatha Kalimuthu, W. Tan, Sin Liang Lim, M. F. A. Fauzi
Digital Elevation Model (DEM) is an important data used in varies geographical researches but it is difficult and costly to obtain a high resolution DEM. This paper evaluates the accuracy of interpolated high resolution DEM established from a low resolution DEM data obtained from an online resource which is freely accessible to researchers and academician. The low resolution DEM available online was obtained from the ASTER Global Digital Elevation Model (ASTER GDEM) project by Japan Space Systems (JSS). Six types of interpolation techniques, namely High Power Inverse Distance Weighted (IDW), Low Power IDW, Tension Spline, Regularized Spline, Ordinary Kriging and Universal Kriging are applied to the low resolution ASTER GDEM to produce the high resolution interpolated DEM. The accuracy of the interpolated DEM is performed by comparing the interpolated DEM with the reference DEM data obtained from the Malaysian Centre for Geospatial Data Infrastructure (MACGDI). Based on the experimental results, the ordinary kriging and universal kriging have shown a good result of 13.99m and 13.95m of average absolute difference respectively. The study suggests that the interpolated DEM generated from ASTER GDEM by JSS can be applied to conduct future studies if high resolution DEM is required.
数字高程模型(DEM)是各种地理研究的重要数据,但高分辨率DEM的获取难度大,成本高。本文评估了从研究人员和学者免费获取的在线资源中获得的低分辨率DEM数据建立的插值高分辨率DEM的精度。在线提供的低分辨率高程模型是由日本空间系统公司(JSS)的ASTER全球数字高程模型(ASTER GDEM)项目获得的。将高功率反距离加权(IDW)、低功率反距离加权(IDW)、张力样条、正则样条、普通克里格和通用克里格6种插值技术应用于低分辨率ASTER GDEM,得到高分辨率插值DEM。通过将插值的DEM与马来西亚地理空间数据基础设施中心(MACGDI)获得的参考DEM数据进行比较,可以实现插值DEM的精度。实验结果表明,普通克里格和通用克里格的平均绝对差分别为13.99m和13.95m。研究表明,在需要高分辨率DEM的情况下,JSS将ASTER GDEM插值后的DEM应用于未来的研究。
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引用次数: 2
Robot assisted evacuation simulation 机器人辅助疏散模拟
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835898
Ibraheem Sakour, Huosheng Hu
It is extremely challenging to safely evacuate a crowd from massive events and buildings such as concerts and football fields. Since the panic caused by the emergency evacuation has a higher risk to human lives, careful planning and suitable measures have to take place to ensure the safety of the citizens. This paper addresses the evacuation problem by suggesting a system utilizing robotics technologies to help the evacuation process. The proposed evacuation system provides a crowd behavior simulation using an agent-based model. The simulated evacuation will be observed by an unmanned aerial vehicle which communicates with the individuals and redirects them towards less crowded exits and away from the the danger source. Finally, the proposed system performance is evaluated and the benefits of using robot aid in evacuations are presented.
从音乐会和足球场等大型活动和建筑物中安全疏散人群是极具挑战性的。由于紧急疏散造成的恐慌对人的生命有较大的危险,因此必须仔细规划和采取适当措施,以确保公民的安全。本文通过提出一个利用机器人技术帮助疏散过程的系统来解决疏散问题。提出的疏散系统使用基于智能体的模型进行人群行为模拟。模拟的疏散过程将由一架无人驾驶飞行器观察,该飞行器将与人们沟通,并将他们引导到不那么拥挤的出口,远离危险源。最后,对所提出的系统性能进行了评估,并介绍了在疏散中使用机器人辅助的好处。
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引用次数: 4
Quadrotor transporting cable-suspended load using iterative Linear Quadratic regulator (iLQR) optimal control 基于迭代线性二次调节器(iLQR)的四旋翼运输缆索载荷最优控制
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835908
Y. Alothman, Dongbing Gu
This paper presents an iterative linear quadratic regulator (iLQR) optimal controller of a high level dynamic model using Euler-Lagrange equations for a single quadrotor UAV with a cable-suspended heavy rigid body. The control algorithm is constructed in order to improve two possible outputs: firstly, precisely tracking a given desired trajectory for a quadrotor with load, and, secondly, considering an anti-swing load through a transporting task. Two challenges have been taken into account: aggressive trajectory tracking and stability in behaviour; these must be guaranteed for the full UAV carrying the payload. The high nonlinear dynamic model of the quadrotor with a consiseration of the cable suspended payload is represented in eleven degrees of freedom. Subsequently, the nonlinear dynamic model is linearised in two modes, a vehicle mode without a load effect during a taking-off task and a switching-to-quad-load system mode considering the load effect used in a simulation. The simulation results are presented to illustrate the system stability improvement and precise implementation through verifying the ILQR parameters in comparison with the LQR controller.
针对单架悬索重刚体四旋翼无人机,提出了基于欧拉-拉格朗日方程的高阶动力学模型迭代线性二次调节器(iLQR)最优控制器。该控制算法的构建是为了提高两种可能的输出:一是精确跟踪给定的带负载的四旋翼飞行器的期望轨迹,二是通过运输任务考虑抗摆载荷。考虑到两个挑战:积极的轨迹跟踪和行为稳定性;这些必须保证用于携带有效载荷的全无人机。考虑悬索载荷的四旋翼飞行器高度非线性动力学模型以11个自由度表示。然后,将非线性动力学模型线性化为两种模式,即起飞任务期间不考虑负载影响的车辆模式和考虑仿真中使用的负载影响的切换到四负载系统模式。仿真结果表明,通过与LQR控制器的比较,验证了ILQR参数对系统稳定性的改善和系统的精确实现。
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引用次数: 27
Optimisation of the spatial discretisation of myelinated axon models 髓鞘轴突模型空间离散化的优化
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835916
M. Capllonch-Juan, F. Kölbl, F. Sepulveda
Sensory feedback in assistive prosthetic devices is a promising method to improve the quality of life of patients after amputation. However, the complexity of providing a truly natural thermal and mechanical feedback to the nervous system remains a challenge for the future generation of prostheses. Investigations for such a technological progress strongly rely on the modelling of the interfaces of the prostheses with the peripheral nervous system. Such models have to accurately mimic the physiological response of the tissue. Because these models are solved by computational methods, one of the keypoints for high accuracy is the spatial discretisation or meshing. In this paper we propose addressing the discretisation of myelinated axons, taking in consideration the existing rules for other neural structures. Our approach takes into account both the accuracy and the computational cost. We conducted simulations over a wide range of discretisation choices to quantify the deviation of the neural signal propagation velocity. Results showed that one segment per node of Ranvier is enough to model the active sites of a myelinated axon with sufficient accuracy. Modeling internodal myelinated regions (IN), on the other hand, requires 5–15 segments per region for accurate results in most cases, depending on the size of the IN. Our results show that simple guidelines can be followed to significantly reduce the errors in simulations of nerve bundles. Such performances will enable the simulation of more complex phenomena in a context of models associated with chaotic dynamics.
辅助假肢装置的感觉反馈是改善截肢患者生活质量的一种很有前途的方法。然而,为神经系统提供真正自然的热和机械反馈的复杂性仍然是未来一代假肢的挑战。这种技术进步的研究很大程度上依赖于假肢与周围神经系统界面的建模。这种模型必须准确地模拟组织的生理反应。由于这些模型都是通过计算方法求解的,因此实现高精度的关键之一是空间离散化或网格化。在本文中,我们提出解决离散化的髓鞘轴突,考虑到现有的规则,为其他神经结构。我们的方法同时考虑了精度和计算成本。我们在广泛的离散化选择上进行了模拟,以量化神经信号传播速度的偏差。结果表明,每个Ranvier节点的一个片段足以以足够的准确性模拟有髓鞘轴突的活动部位。另一方面,在大多数情况下,建模节间髓鞘区(IN)需要每个区域5-15个片段才能获得准确的结果,这取决于IN的大小。我们的结果表明,遵循简单的指导方针可以显著减少模拟神经束的误差。这样的性能将使在与混沌动力学相关的模型背景下模拟更复杂的现象成为可能。
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引用次数: 1
Building semantic maps for blind people to navigate at home 建立语义地图,方便盲人在家导航
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835881
Qiang Liu, Ruihao Li, Huosheng Hu, Dongbing Gu
The traditional environment maps built by robots include both metric ones and topological ones. These maps are navigation-oriented and not adequate for service robots to interact with or serve human users who normally rely on conceptual knowledge or semantic contents of the environment. Therefore, the construction of semantic maps becomes necessary for building an effective human-robot interface for service robots. This paper aims to build a 3D environment map with an RGB-D sensor and extract semantic information from the RGB images to help blind people navigate at home. A novel approach is presented to diagnose and eliminate errors during semantic extraction.
传统的机器人环境地图包括度量地图和拓扑地图。这些地图是面向导航的,不适合服务机器人与通常依赖于环境的概念知识或语义内容的人类用户进行交互或为其提供服务。因此,为服务机器人构建有效的人机界面,语义地图的构建成为必要。本文旨在利用RGB- d传感器构建三维环境地图,并从RGB图像中提取语义信息,帮助盲人在家中导航。提出了一种新的方法来诊断和消除语义提取过程中的错误。
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引用次数: 6
An event detection approach for identifying learning evidence in collaborative virtual environments 协同虚拟环境中学习证据识别的事件检测方法
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835886
Samah Felemban, M. Gardner, V. Callaghan
3D virtual environments support collaborative learning through connecting users in real-time allowing them to accomplish learning tasks together, in addition they enhance the students' exploration, engagement, and interactivity. However, collecting learning evidence to evaluate students in these environments has many difficulties. Therefore, the intention of this paper is to describe our approach for assessing student's learning within collaborative groups in 3D virtual worlds (VWs). It combines a computational mechanism that integrates software agents and natural agents (users) with an ontology approach that supports the identification of learning evidence from collaborative activities that mimics classroom observation. The software agents track the users and collects different actions, clicks, and events to evaluate the quantity of interactions, while the natural agents perform peer evaluations of the students to assess the quality of their performance. The aim is that such a computational model can support more in-depth assessment of learning activities in 3D spaces.
3D虚拟环境通过实时连接用户来支持协作学习,使他们能够共同完成学习任务,此外还增强了学生的探索、参与和交互性。然而,在这些环境中收集学习证据来评估学生有很多困难。因此,本文的目的是描述我们在3D虚拟世界(VWs)协作小组中评估学生学习的方法。它结合了一种集成了软件代理和自然代理(用户)的计算机制,以及一种支持从模仿课堂观察的协作活动中识别学习证据的本体方法。软件代理跟踪用户并收集不同的动作、点击和事件来评估交互的数量,而自然代理对学生进行同行评估以评估他们的表现质量。目的是这样一个计算模型可以支持更深入的评估学习活动在三维空间。
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引用次数: 6
Towards unobtrusive ambient sound monitoring for smart and assisted environments 为智能和辅助环境提供不显眼的环境声音监测
Pub Date : 2016-09-01 DOI: 10.1109/CEEC.2016.7835882
N. Griffiths, J. Chin
This paper proposes an implementation of a wireless sensor network as part of the Internet of Things using a network of distributed Raspberry Pi computers transmitting data over a ZigBee radio-mesh. The pervasive nature of noise in the modern environment makes this an ideal factor for monitoring unobtrusively in the Smart Environment. Noise monitoring using distributed Raspberry Pi computers has already been established in several other studies, but rarely in a domestic setting. The goal of this study is to evaluate the potential for using off-the-shelf, low-cost components to develop a wireless sensor network for unobtrusive sound monitoring in a domestic environment, where anomalous readings trigger alerts. The study investigates the transferability of the prototype into assisted living to enable seniors to live independently in their own homes. Assisted ambient living in a smart environment can provide support for both the elderly person and their carers through the provision of relevant data in a clear and easily accessible manner using cross-platform applications. Data can be accessed actively through an interface or passively when alerts are triggered.
本文提出了一种无线传感器网络的实现,该网络作为物联网的一部分,使用分布式树莓派计算机网络通过ZigBee无线网络传输数据。噪音在现代环境中无处不在,这使得它成为智能环境中不显眼的监控的理想因素。使用分布式树莓派计算机进行噪声监测已经在其他几项研究中建立起来,但很少在家庭环境中进行。本研究的目的是评估使用现成的低成本组件开发无线传感器网络的潜力,用于在家庭环境中进行不显眼的声音监测,其中异常读数会触发警报。该研究调查了原型在辅助生活中的可转移性,使老年人能够在自己的家中独立生活。智能环境中的辅助环境生活可以通过使用跨平台应用程序以清晰和易于访问的方式提供相关数据,为老年人及其护理人员提供支持。可以通过接口主动访问数据,也可以在触发警报时被动访问数据。
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引用次数: 2
期刊
2016 8th Computer Science and Electronic Engineering (CEEC)
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