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2016 IEEE Ecuador Technical Chapters Meeting (ETCM)最新文献

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Development of a smart glove as a communication tool for people with hearing impairment and speech disorders 开发一种智能手套,作为听力障碍和语言障碍患者的交流工具
Pub Date : 2016-11-21 DOI: 10.1109/ETCM.2016.7750815
S. Aguiar, Andres Erazo, Sebastian Romero, Esteban Garces, Valeria Atiencia, Javier Poveda Figueroa
This paper describes a project to create a novel design of a communication tool for individuals with hearing disabilities and speech disorders. It provides a detailed analysis of the engineering and scientific aspects of the system, and the fundamentals taken into account for social inclusion of such individuals. It also describes a comprehensive study of present and future applications of this technology to provide an enhanced tool to individuals to further improve their communication skills. Morse code is the base over which this new technology is proposed, which has gathered feedback from specialists and individuals with disabilities, to develop in a near future as a newer communication tool solution, with a robust functionality and an ergonomic design.
本文描述了一个为听力障碍和语言障碍的个人创造一种新颖设计的交流工具的项目。它详细分析了该制度的工程和科学方面,以及考虑到这些个人的社会包容的基本原则。它还描述了对该技术的当前和未来应用的全面研究,以提供一个增强的工具,以进一步提高他们的沟通技巧。莫尔斯电码是提出这项新技术的基础,它已经收集了专家和残疾人的反馈,在不久的将来,它将成为一种功能强大、符合人体工程学设计的新型通信工具解决方案。
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引用次数: 9
Enhancing quality of argumentation in a co-located collaborative environment through a tabletop system 通过桌面系统提高在同一地点协作环境中的论证质量
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750832
Gabriel Falcones, Marisol Wong-Villacrés, Vanessa Echeverria Barzola, K. García
This study validates the potential of a tabletop system to enhance students' quality and intensity of argumentation when engaging in co-located collaborative design activities. Twenty-four undergraduate students participated in a between-subjects design where one group used the proposed system and the other group used a paper-based approach. Overall students using the tabletop system over exceeded their peers in relation to their quality and intensity of argumentation. Further studies should increase the number of students to be able to generalize our findings.
本研究验证了桌面系统在参与同地协作设计活动时提高学生论证质量和强度的潜力。24名本科生参加了受试者之间的设计,其中一组使用拟议的系统,另一组使用基于纸张的方法。总的来说,使用桌面系统的学生在辩论的质量和强度方面超过了同龄人。进一步的研究应该增加学生的数量,以便能够概括我们的发现。
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引用次数: 6
Algorithm and rapid intervention to attenuate Zika virus outbreak in large cities 缓解大城市寨卡病毒疫情的算法与快速干预
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750814
H. Nieto-Chaupis, H. Matta-Solis
A rapid-decision algorithm aimed to tackle the increase of cases by infection due to the possible presence of Zika virus in Peri-urban areas of large cities, was developed and tested computationally. This approach targets to provide rapid assistance to possible cases caused by the Aedes mosquitoes minimizing the time of the processes of identification, evaluation and intervention. Basically, the algorithm focuses on the rapid decision for a better localization of pregnant women away from infected areas where there is one suspected case already manifesting Zika symptoms. The algorithm assumes that at least there is one suspected case of Zika virus. Assuming the case that this person performs a phone call to health specialists, then an optimized route for a rapid attention is drawn. By assuming the scenario that the suspected is already a confirmed case, the knowledge of its Geographic localization might be also crucial to focus efforts to identify the vulnerable human groups living around it. The simulations have shown that given an initial sample of suspected cases, the application systematic of the algorithm might avoid complications in a 90% of identified pregnant women population.
为了应对大城市城郊地区可能存在寨卡病毒而导致感染病例增加的问题,开发了一种快速决策算法,并进行了计算测试。该方法旨在为伊蚊可能引起的病例提供快速援助,最大限度地减少识别、评估和干预过程的时间。基本上,该算法的重点是快速决策,以便更好地定位孕妇,使其远离已经出现寨卡病毒症状的疑似病例的感染地区。该算法假设至少有一个寨卡病毒疑似病例。假设这个人给健康专家打了一个电话,那么一个优化的快速关注路线就会被绘制出来。假设疑似病例已经是确诊病例,那么对其地理定位的了解对于集中努力确定生活在其周围的脆弱人群也可能至关重要。模拟表明,给定疑似病例的初始样本,该算法的应用系统可能会避免90%已确定的孕妇群体的并发症。
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引用次数: 0
Performance evaluation of radar systems in noise jamming environments 噪声干扰环境下雷达系统性能评价
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750823
Francisco Novillo, Juan M. Romero-Arguello, Esteban R. Guerrero, Jennifer Figueroa, Cristhian Suarez
Radar systems are widely used for military, transportation and scientific purposes. For radars, the ability of the device to mitigate the effects of noise and interference is of great importance because it will determine its performance. Radars may suffer from attacks aimed to hinder their performance, known as jamming attacks. In this context, noise jamming attacks are a very common type of attack, thus reducing their effect is fundamental. Due to this fact, simulation and analysis of radar performance in different scenarios could help decrease possible threats. For this reason, in this paper the performance of radars in noise jamming environments is evaluated. To achieve this, a radar system, jammer attacks and anti-jamming algorithm are modelled and evaluated through simulations. The models and algorithms developed in this work could aid in the process of performance test and analysis of radars and could be used as a design platform of radars and jammers to reduce developing and implementation time.
雷达系统广泛用于军事、交通和科学用途。对于雷达来说,设备减轻噪声和干扰影响的能力是非常重要的,因为它将决定其性能。雷达可能遭受旨在阻碍其性能的攻击,即干扰攻击。在这种情况下,噪声干扰攻击是一种非常常见的攻击类型,因此降低其影响是根本的。由于这一事实,模拟和分析雷达在不同情况下的性能可以帮助减少可能的威胁。为此,本文对雷达在噪声干扰环境下的性能进行了评价。为了实现这一目标,对雷达系统、干扰攻击和抗干扰算法进行了建模并通过仿真进行了评估。所开发的模型和算法可以辅助雷达的性能测试和分析,并可作为雷达和干扰机的设计平台,以缩短开发和实现时间。
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引用次数: 2
Transmission of a wireless signal by using a microwave photonic filter through an optical link 用微波光子滤波器通过光链路传输无线信号
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750837
A. G. Correa-Mena, I. Zaldívar-Huerta, J. H. Abril-García, A. García-Juárez, L. García-Delgado
This work describes an electro-optical system capable to transmit a wireless reference signal of 0.915 GHz using the Radio-over-Fiber technique. The reference signal is supplied by a RF multiband transceiver, sensed by an antenna, and coded on the filtered microwave band-pass windows situated at 2.31 GHz, 4.62 GHz, and 6.86 GHz. Mixing the reference signal with an analog microwave signal, the resulting electrical signal is transmitted over 25.25 km of optical fiber and radiated by means of an antenna. The electro-optical system here described exhibits a SNR of 31.93 dB, which is an acceptable value in a Radio-over-Fiber system.
本文描述了一种利用光纤无线通信技术传输0.915 GHz无线参考信号的电光系统。参考信号由射频多波段收发器提供,由天线感测,并在位于2.31 GHz, 4.62 GHz和6.86 GHz的滤波微波带通窗口上编码。将参考信号与模拟微波信号混合,得到的电信号通过25.25公里长的光纤传输,并通过天线辐射。这里描述的电光系统显示出31.93 dB的信噪比,这是一个可接受的值在无线光纤系统。
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引用次数: 0
Evaluation of performance and scalability of Mininet in scenarios with large data centers Mininet在大型数据中心场景下的性能和可扩展性评估
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750830
J. Ortiz, Jorge Londoño, Francisco Novillo
Due to the increased demand for internet services, the challenges that large data centers must handle are bigger. Therefore, in recent years the development of networks defined by software (SDN) has caught the attention of the scientific community, mainly because of the flexibility it presents in its model of centralized management, which facilitates the development of solutions according to demand of the network and / or users. Mininet is one of the most commonly tools used for the study of SDNs, as it allows to recreate data networks that can support various topologies and protocols. Nevertheless, like any other emulation software Mininet has limitations due to the restrictions of the hardware/software platform where it runs, which prevents it to scale to large networks. We present a characterization of the performance and scalability of Mininet via an experimental analysis. For this purpose, we used a typical topology for large data centers. The results let us conclude that, under some restrictions, Mininet gives results in accord with the theoretical expectation. In other cases, the emulation platform exhibits strong dependence on the performance of underlying hardware/software system as well as on the operation mode of the SDN controller used in the network.
由于对互联网服务的需求不断增加,大型数据中心必须应对的挑战也越来越大。因此,近年来软件定义网络(SDN)的发展引起了科学界的关注,主要是因为其集中管理模式所呈现的灵活性,便于根据网络和/或用户的需求开发解决方案。Mininet是研究sdn最常用的工具之一,因为它允许重新创建支持各种拓扑和协议的数据网络。然而,像任何其他仿真软件一样,Mininet由于其运行的硬件/软件平台的限制而具有局限性,这阻碍了它扩展到大型网络。通过实验分析,我们对Mininet的性能和可扩展性进行了表征。为此,我们使用了大型数据中心的典型拓扑。这些结果让我们得出结论,在一定的限制条件下,Mininet给出的结果符合理论预期。在其他情况下,仿真平台表现出对底层硬件/软件系统的性能以及网络中使用的SDN控制器的操作模式的强烈依赖。
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引用次数: 12
Determination of converge parameters for Monte Carlo experiments in the simulation of the failure of bone tissue 模拟骨组织破坏的蒙特卡罗实验收敛参数的确定
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750871
M. Ciaccia, C. Muller-Karger, Euro Casanova, Thalia San Antonio
The Monte Carlo method is widely used in the field of biomechanics to study the variability of diverse parameters, like tissues properties, magnitude and direction of loads, kinematic of joints, among others. In particular, the failure of bone tissue, which is the target of this investigation, has been extensively studied; however, it is common to find in the literature realizations of Monte Carlo experiments with arbitrary sample size, or with a convergence criterion for which a statistically valid confidence level, or interval, is not defined. These strategies lead to results with presumed low, but unknown uncertainty. One option to address this problem is the acceptable shifting convergence band rule which, if appropriately configured and applied, serves as a convergence criterion with an implicit confidence level. However, in order to ensure a desired confidence level, it is necessary to determine the correct parameters for the method. As the typical biomechanical simulation is very time consuming, it is not advisable to calculate these parameters with the full model. Therefore, it is recommended to run a Monte Carlo experiment with a simpler, faster to simulate, model that is probabilistically similar to the full model. In this work, a pilot experiment is developed in order to compute the parameters required to stop the Monte Carlo simulation of the failure of bone tissue, with a desired confidence level. Two different failure criteria are applied, one with two and the other with three input probabilistic variables. Also, the variation of the convergence parameter with the desired precision of the mean is explored. Results led to determine suitable parameters for the different combinations of desired confidence level, precision of the mean and failure criterion. It was also found that when three input variables were involved, or when a three significant digits precision of the mean was required, the number of trials needed to attain convergence was greater than when two inputs variables were involved or when two significant digits precision was required.
蒙特卡罗方法广泛应用于生物力学领域,用于研究各种参数的可变性,如组织特性、载荷的大小和方向、关节的运动学等。特别是骨组织的衰竭,这是本研究的目标,已经被广泛研究;然而,在文献中经常发现具有任意样本量的蒙特卡罗实验的实现,或者具有未定义统计有效置信水平或区间的收敛准则。这些策略导致的结果具有假定的低但未知的不确定性。解决这个问题的一个选择是可接受的移动收敛带规则,如果适当地配置和应用,它可以作为具有隐式置信度的收敛准则。然而,为了确保期望的置信水平,有必要为该方法确定正确的参数。由于典型的生物力学模拟非常耗时,因此不建议使用全模型来计算这些参数。因此,建议使用与完整模型概率相似的更简单、更快的模拟模型来运行蒙特卡罗实验。在这项工作中,开发了一个试点实验,以计算停止骨组织失败的蒙特卡罗模拟所需的参数,具有所需的置信度。应用了两种不同的失效准则,一种有两个输入概率变量,另一种有三个输入概率变量。同时,探讨了收敛参数随期望均值精度的变化。结果确定了所需置信水平、均值精度和失效准则的不同组合的合适参数。还发现,当涉及三个输入变量时,或者当需要三个有效数字的平均值精度时,达到收敛所需的试验次数大于涉及两个输入变量或需要两个有效数字精度时。
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引用次数: 1
Towards a fast multi-tier storage system simulator 迈向快速多层存储系统模拟器
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750836
Cesar San-Lucas, Cristina L. Abad
This paper presents StorageSim, a multi-tier storage system simulator. StorageSim is a process-based discrete-event simulator developed using the SimPy simulation framework. It simulates the operation of a multi-tiered storage system; for example, a system that stores super “hot” files in non-volatile RAM, less “hot” files in solid state drives (SSDs) and “warm” and “cold” files in hard disk drives (HDDs). StorageSim comes with three data-placement policies, and can be extended to support other policies. It can replay publicly available storage traces from the Storage Networking Industry Association (SNIA) and other public sources, and can be used to evaluate data-placement policies prior to implementing them on a real system. By abstracting away many complex details, StorageSim provides a fast simulation framework that can be used to simulate large scale storage systems. Experimental results show that StorageSim is useful, can reproduce prior results from real deployments, and is fast enough to handle Big Data workloads in a timely manner.
本文介绍了一个多层存储系统模拟器StorageSim。StorageSim是使用SimPy仿真框架开发的基于进程的离散事件模拟器。它模拟了多层存储系统的运行;例如,在非易失性RAM中存储超级“热”文件,在固态驱动器(ssd)中存储较少“热”文件,在硬盘驱动器(hdd)中存储“热”和“冷”文件的系统。StorageSim附带了三个数据放置策略,并且可以扩展以支持其他策略。它可以重播来自存储网络行业协会(SNIA)和其他公共来源的公开可用的存储轨迹,并且可以用于在实际系统上实现数据放置策略之前评估它们。通过抽象出许多复杂的细节,StorageSim提供了一个快速的模拟框架,可以用来模拟大规模的存储系统。实验结果表明,StorageSim是有用的,可以从实际部署中重现先前的结果,并且足够快,可以及时处理大数据工作负载。
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引用次数: 3
Optimal geographic placement of PMU for Wide Area Measurement System 广域测量系统中PMU的最佳地理位置
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750856
E. Inga, R. Hincapié, Carlos Paida, S. Espinosa
this paper presents a methodology to solve the problem of optimal placement of WAMS in an electric power transmission system. In this paper two approaches are introduced aiming at reducing the computational burden in Optimal Placement problems. The goal is to make a preliminary analysis of optimal placement of PMU (OPP) and subsequently to optimize the costs of the communication network (CN) through the minimization of distances of connection between each node. For this purpose, an Integer Linear Programming (ILP) based on algorithm for the PMU placement has been modified and expanded to determine optimal PMU locations by incorporating the effect of zero-injection buses and conventional measurements. In addition, Kruskal's Minimum Spanning Tree algorithm is used to obtain the optimal communication networks with minimum investment. The effectiveness of the proposed method is verified in a real large size transmission system, where geo-referenced data (coordinates) of the buses (nodes) and transmission lines that make up the entire network are obtained. The main objective focuses on minimizing the cost associated with PMU placement and communication network, while ensuring the full observability of the system.
本文提出了一种解决WAMS在电力传输系统中的优化配置问题的方法。本文介绍了两种方法,旨在减少最优布局问题的计算量。目标是对PMU (OPP)的最佳布局进行初步分析,然后通过最小化每个节点之间的连接距离来优化通信网络(CN)的成本。为此,对基于PMU放置算法的整数线性规划(ILP)进行了修改和扩展,通过结合零注入总线和常规测量的影响来确定最佳PMU位置。此外,采用Kruskal最小生成树算法,以最小投资获得最优通信网络。在一个实际的大型传输系统中验证了该方法的有效性,该系统获得了构成整个网络的总线(节点)和传输线的地理参考数据(坐标)。主要目标集中在最小化与PMU放置和通信网络相关的成本,同时确保系统的完全可观察性。
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引用次数: 3
Analysis and determination of minimum requirements for a data link communication system for unmanned aerial vehicles- UAV's 无人机用数据链通信系统最低要求的分析和确定
Pub Date : 2016-10-01 DOI: 10.1109/ETCM.2016.7750816
Wilson Medina-Pazmiño, Aníbal Jara-Olmedo, D. Valencia-Redrovan
In recent years, UAVs (Unmanned Aerial Vehicles) they have shown enormous potential in civilian and military applications. They have become an essential tool in the field of defense, security and scientific development of a nation. Technological advancement has allowed these aircrafts to fly autonomously. That is why the different systems containing a UAV have to be monitored and controlled at all times from the Command and Control Station. The accuracy with which this information is sent will give confidence and autonomy to run the mission and perform flight tests autonomously and safely. It guarantees safe navigation of the aircraft. The analysis presented in this document sets out the necessary calculations to determine the link budget to ensure the permanent availability of information. It will determine the best band frequency, propagation loss, antenna gain, sensitivity of communication equipment, among others. These requirements are the basis for selecting the right equipment for the implementation of the communications system for a UAV. The results of performed tests are shown. They will consider multiple distances that the data link must reach, the field conditions in which the operations are to be carried out, the parameters affecting communications, field tests in real missions and the analysis of the obtained results.
近年来,无人机(无人机)在民用和军事应用中显示出巨大的潜力。它们已成为一个国家国防、安全和科学发展领域必不可少的工具。技术进步使这些飞机能够自主飞行。这就是为什么包含无人机的不同系统必须随时从指挥和控制站进行监视和控制。发送这些信息的准确性将为自主和安全地运行任务和执行飞行测试提供信心和自主权。它保证了飞机的安全航行。本文件所载的分析列出了确定链接预算的必要计算,以确保信息的永久可用性。它将决定最佳频带频率、传播损耗、天线增益、通信设备的灵敏度等。这些要求是为无人机通信系统选择正确设备的基础。显示了已执行的测试结果。他们将考虑数据链必须达到的多种距离、开展业务的实地条件、影响通信的参数、实际任务中的实地测试以及对所获得结果的分析。
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引用次数: 12
期刊
2016 IEEE Ecuador Technical Chapters Meeting (ETCM)
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