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2018 International Conference on Applied Smart Systems (ICASS)最新文献

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Model Order Reduction of Power Systems Preserving Tie Line Flows 保留联络线流的电力系统模型降阶
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652007
Omar Benmiloud, S. Arif
Even with today's technologies, transient stability studies of large power systems present a computational burden. In this paper, a reduced order model of multi-machine power systems is addressed. The methodology is based on information collected from Phasor Measurement Units (PMUs) at boundary buses. The Grey Wolf Optimizer (GWO) is employed then to estimate parameters of the fictitious generator, expressed by the fourth order model with an equivalent exciter. The proposed methodology is tested on 10-machine New England system. Simulation results show the feasibility of the methodology, and the ability to retain the original system behavior for various contingencies.
即使使用今天的技术,大型电力系统的暂态稳定研究仍然是一个计算负担。本文研究了多机电力系统的降阶模型。该方法是根据从边界巴士的相量测量单元(pmu)收集的信息。然后利用灰狼优化器(GWO)对虚拟发电机的参数进行估计,并将其表示为带等效励磁器的四阶模型。在10台机器的新英格兰系统上进行了测试。仿真结果表明了该方法的可行性,并且能够在各种突发事件中保持系统的原始行为。
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引用次数: 2
Updatable indoor localization based on BLE signal fingerprint 基于BLE信号指纹的可更新室内定位
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652035
B. Benaissa, Kaori Yoshida, M. Köppen, Filip Hendrichovsky
The need for a robust indoor localization solution is mounting in the recent few year, as the IoT technology is growing fast. In this paper, we discuss existing indoor localization approaches, focusing on the signal strength fingerprint approaches, to which belongs the presented study and based on Bluetooth Low Energy signal. The proposed approach employs the Radial Basis Functions (RBF) to create model that describe the real signal strength-position relationship. The present method is fully implemented on a smart phone, namely, offline data collection, model computation and online position estimation. This allow updating the model by collecting more signal data, therefore improving the localization accuracy with small efforts. The presented results shows that updating the model effectively improves the accuracy of estimation.
近年来,随着物联网技术的快速发展,对强大的室内定位解决方案的需求正在增加。本文讨论了现有的室内定位方法,重点介绍了本文研究的基于低功耗蓝牙信号的信号强度指纹定位方法。该方法采用径向基函数(RBF)来建立描述真实信号强度-位置关系的模型。本方法在智能手机上完全实现,即离线数据采集、模型计算和在线位置估计。这允许通过收集更多的信号数据来更新模型,从而以较小的努力提高定位精度。结果表明,对模型进行更新可以有效地提高估计的精度。
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引用次数: 3
Gas Turbine Monitoring using Fuzzy Control approaches: Comparison between Fuzzy Type 1 and 2 基于模糊控制的燃气轮机监测:模糊1型与模糊2型的比较
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652012
Hakim Bagua, Moulod Guemana, A. Hafaifa, A. Chaibet
In this paper a theoretical and practical comparative study is proposed, between types 1 and 2 fuzzy systems for the monitoring of a gas turbine process. Firstly, the type 1 and type 2 fuzzy sets are presented followed by the description of the two fuzzy systems, to understand the differences between there inference systems, then a theoretical comparative study is presented, and finally the contribution of this work in the practical part by the application of the two fuzzy control approaches type-1 and type-2 in a fuel valve positioning of a gas turbine process, the obtained results shows the advantage of the used time in fuzzy control type-2, which is a very important factor in industrial applications.
本文对一类和二类模糊系统在燃气轮机过程监测中的应用进行了理论和实践的比较研究。首先,提出了1型和2型模糊集两个模糊系统的描述,理解之间的差异有推理系统,然后提出了一种理论的比较研究,最后的贡献在实际工作应用程序的一部分的两种模糊控制方法1型和2型燃气轮机的燃料阀定位过程,结果显示了利用模糊控制2型的使用时间,这是工业应用中一个非常重要的因素。
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引用次数: 4
Evaluation of the self sufficiency of a home powered by a PV–Wind system 评估由光伏-风能系统供电的家庭的自给自足能力
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652064
Z. Smara, Ali Laldji, Ahmed Ferkous, M. Tali, A. Mahrane, R. Dizène
This article deals with the case of a house, located in the south Mediterranean coastal region powered by a hybrid photovoltaic wind power plant. The objective is to satisfy as much as possible the energy demand of this house by renewable electric energy. For the case considered adding to the on-grid 3.2kWp PV system with 12kWh backup a 1kW wind turbine improves the self-sufficiency rate of the house which reaches 81.83%, reduces the energy withdrawn from the grid by 40 %.
本文讨论了一个位于地中海南部沿海地区的住宅的案例,该住宅由混合光伏风力发电厂供电。我们的目标是通过可再生能源来尽可能地满足这座房子的能源需求。在考虑的案例中,在并网的3.2kWp光伏系统中增加一个12kWh备用的1kW风力涡轮机,提高了房屋的自给率,达到81.83%,减少了40%的从电网中撤回的能量。
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引用次数: 1
A Fuzzy Controller Using Three Level-inverter based DSTATCOM 基于DSTATCOM的三电平逆变器模糊控制器
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8651997
F. Benzerafa, A. Tlemçani, N. Henini
Nowadays, the improvement of power factor has becoming increasingly concerned by the electric power utilities. There are many problems that affect the power quality and the performance of the equipment at consumer such as voltage sags or voltage dips, voltage imbalance, waveform distortion, voltage fluctuations and frequency. The improvement of power quality and the control of networks can be obtained by the implementation of the new devices technologies naming FACTS. Thus, the uses of device such as Distribution Static Compensator (DSTATCOM) can solve many problems in the electrical networks. The DSTATCOM is a source based on semiconductor capable of supplying or absorbing of reactive power in network. It used for correcting power quality problems in distribution systems. Because of limitation of use of conventional two-level inverter based DSTATCOM in the field of high power applications, we used the multilevel inverter. In this paper we will develop the space vector modulation algorith me technique in the case of the three level inverter. To validate the theory and models presented in this paper a structured simulation is executed in the simPowerSystems of MATLAB/Simulink.
目前,功率因数的提高日益受到电力企业的关注。电压跌落、电压不平衡、波形失真、电压波动和频率等问题影响着电能质量和设备在消费者处的性能。通过实施被称为FACTS的新型设备技术,可以实现电能质量的改善和对网络的控制。因此,使用配电静态补偿器(DSTATCOM)等装置可以解决电网中的许多问题。DSTATCOM是一种基于半导体的电源,能够在网络中提供或吸收无功功率。它用于纠正配电系统中的电能质量问题。由于传统的基于DSTATCOM的双电平逆变器在大功率应用领域的局限性,我们采用了多电平逆变器。本文将在三电平逆变器的情况下开发空间矢量调制算法技术。为了验证本文提出的理论和模型,在MATLAB/Simulink的simPowerSystems中进行了结构化仿真。
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引用次数: 0
Fourier magnitude-based steganography for hiding 2.4 kbpsMELP secret speech 基于傅立叶幅度的隐写术隐藏2.4 kbpsmep秘密语音
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652057
Hamza Kheddar, D. Megías, M. Bouzid
In this paper, a novel steganographic technique based on hiding a secret speech, coded with a 2.4 kbps Mixed Excitation Linear Prediction (MELP) speech coder, in another (cover) speech bitstream, also coded with the MELP coder, is presented. First, the secret speech is embedded in the Fourier magnitude (FM) MELP parameter using an LSB method. Second, a necessary parameter for message extraction, the amount of embedded bits (AEB), is also transmitted in the stego speech using some of the fields of MELP frame. In addition, we provide a mechanism for re-synchronization in case of packet loss. The performance of the method is shown experimentally against a Support Vector Machine (steganalyzer). The accuracy of such steganalyzer is around 50%, i.e. equivalent to random guessing. Finally, we also provide transparency results for the stego speech. Although transparency is not usually a requirement in steganographic applications, the proposed method may also be used for other data hiding applications that require good fidelity.
本文提出了一种新的隐写技术,该技术利用2.4 kbps的混合激励线性预测(MELP)语音编码器将一个秘密语音隐藏在另一个(覆盖)的语音比特流中,同样使用MELP编码器进行编码。首先,使用LSB方法将秘密语音嵌入到傅里叶幅度(FM) MELP参数中。其次,利用MELP帧的一些字段在隐写语音中传输消息提取的必要参数,即嵌入比特数(AEB)。此外,我们还提供了在丢包情况下重新同步的机制。通过支持向量机(隐写分析器)的实验验证了该方法的性能。这种隐写分析器的准确度在50%左右,相当于随机猜测。最后,我们还提供了隐写语音的透明度结果。虽然在隐写术应用中通常不要求透明度,但所提出的方法也可用于其他需要良好保真度的数据隐藏应用。
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引用次数: 3
A low Cost Smart Insole for Diabetic Foot Prevention 预防糖尿病足的低成本智能鞋垫
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8651973
M. Bencheikh, S. Boukhenous
The foot pressure measurement is important in gait and posture research for diagnosis of pressure of the feet for the athletes, back injuries, adaptation of insoles for orthopaedic applications and prevention of diabetic foot ulceration. There are several methods to measure the distribution of foot pressure. However, traditional systems have the disadvantage of being no flexible and thus influencing the measurement. In this work we present a low cost smart insole for diagnosis and prevention of plantar perforating disease in diabetic patients. The system consists of an instrumented insole that contains innovative sensors witch allow the quantification of plantar pressure at critical points that have a high risk of ulceration, it also contains a temperature / humidity sensors. A high rate of temperature and humidity allows faster formation of the ulcer, especially in the high friction points. All sensors for both feet communicate wirelessly and in real time with a mobile application through Bluetooth.
足压测量在步态和姿势研究中具有重要的意义,对运动员足部压力的诊断、背部损伤、骨科应用中鞋垫的适应以及糖尿病足溃疡的预防都具有重要意义。有几种方法可以测量足部压力的分布。然而,传统的测量系统存在不灵活、影响测量的缺点。在这项工作中,我们提出了一种低成本的智能鞋垫诊断和预防足底穿孔疾病的糖尿病患者。该系统包括一个内置仪器的鞋垫,其中包含创新的传感器,可以在溃疡高风险的关键点处量化足底压力,它还包含一个温度/湿度传感器。较高的温度和湿度会加速溃疡的形成,特别是在高摩擦点。双脚上的所有传感器都通过蓝牙与移动应用程序进行无线实时通信。
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引用次数: 6
Security Improvement of the Enhanced 1-round Authentication Protocol for Wireless Body Area Networks 无线体域网络增强1轮认证协议的安全性改进
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652036
Sarah Izza, M. Benssalah, Rabah Ouchikh
Wireless Body Area Network (WBAN) has attracted a huge interest following the development of microelectronics, miniaturized sensors and the advancement of wireless communication. However, medical data are very sensitive and any modification or eavesdropping of the physiological data may affect the diagnosis or the privacy of the patient, so, the security in WBAN remains a big challenge. Therefore, it is important to ensure a secure mutual authentication between the network entities to protect the user’s information from being corrupted and to ensure the privacy of the patient. In this paper, first, we review the security of Li et al.’s authentication scheme which is the most recently proposed protocol in this field. Then, we propose an improved version to overcome flaws found in Li et al.’s scheme. The security and performance analysis show that the improved protocol presents better security features.
随着微电子技术的发展、传感器的小型化和无线通信技术的进步,无线体域网络(WBAN)引起了人们的极大兴趣。然而,由于医疗数据非常敏感,对生理数据的任何修改或窃听都可能影响患者的诊断或隐私,因此,无线宽带网络的安全性仍然是一个很大的挑战。因此,确保网络实体之间安全的相互认证,以保护用户信息不被破坏,并确保患者的隐私是非常重要的。本文首先对Li等人的认证方案的安全性进行了综述,Li等人的认证方案是该领域最新提出的协议。然后,我们提出了一个改进版本,以克服Li等人的方案中发现的缺陷。安全性和性能分析表明,改进后的协议具有更好的安全特性。
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引用次数: 6
High Order Statistics For Ventricular Ectopic Beats Detection 心室异位心跳检测的高阶统计量
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8651975
Tarek Benarabi, M. Adnane, M. Mansour
Electrocardiogram (ECG) signals processing are vital tools to tracking the cardiac abnormalities, thus it is widely used in assessing and diagnosing the health of the heart. One of the most common cardiac arrhythmias which has been considered by clinicians is ventricular ectopic beats (VEBs), it include premature ventricular contraction (PVC) arrhythmia and others cases. The ECG analysis needs to continuous surveillance of the heartbeat record by cardiologist. To avoid this tedious task for clinicians, several automated diagnostic techniques have been developed in the last years. Most of them depend on the wavelet transform and/or Autoregressive model (AR model) and its various extractive features. In this paper, we are proposing a simple method for heartbeats classification, more precisely, for VEBs arrhythmia detection. It is based on two high order statistical measures (kurtosis, skewness), they are used to discriminate between normal beats (N) and abnormal beats (VEBs), and without the need of mathematical modeling (example: signal transformation such as wavelet, AR model). Obtained results are satisfactory and it proves the potential and efficiency to detect VEB arrhythmia using two high order statistical measures (HOS). Moreover, this method is a simple, fast and easy to implement in several platform for real time practice.
心电图信号处理是跟踪心脏异常的重要工具,在评估和诊断心脏健康方面有着广泛的应用。室性异位搏是临床上最常见的心律失常之一,它包括室性早搏(PVC)心律失常等。心电图分析需要心脏科医生对患者的心跳记录进行连续监测。为了避免临床医生进行这项繁琐的工作,近年来已经开发了几种自动诊断技术。它们大多依赖于小波变换和/或自回归模型(AR模型)及其各种提取特征。在本文中,我们提出了一种简单的心跳分类方法,更准确地说,用于veb心律失常检测。它基于两个高阶统计度量(峰度,偏度),它们用于区分正常节拍(N)和异常节拍(VEBs),并且不需要数学建模(例如:信号变换如小波,AR模型)。结果令人满意,证明了利用两种高阶统计测度(HOS)检测VEB型心律失常的潜力和有效性。该方法具有简单、快速、易于在多个平台上实时实现的特点。
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引用次数: 1
An Effective Network Intrusion Detection Using Hellinger Distance-Based Monitoring Mechanism 基于Hellinger距离监测机制的有效网络入侵检测
Pub Date : 2018-11-01 DOI: 10.1109/ICASS.2018.8652008
Benamar Bouyeddou, F. Harrou, Ying Sun, B. Kadri
This paper proposes an intrusion detection scheme for Denial Of Service (DOS) and Distributed DOS (DDOS) attacks detection. We used Hellinger distance (HD), which is an effective measure to quantify the similarity between two distributions, to detect the presence of potential malicious attackers. Specifically, we applied HD-based anomaly detection mechanism to detect SYN and ICMPv6-based DOS/DDOS attacks. Here, Shewhart chart is applied to HD to set up a detection threshold. The proposed mechanism is evaluated using DARPA99 and ICMPv6 traffic datasets. Results indicate that our mechanism accomplished reliable detection of DOS/DDOS flooding attacks.
本文提出了一种针对拒绝服务(DOS)和分布式DOS (DDOS)攻击的入侵检测方案。我们使用海林格距离(HD)来检测潜在恶意攻击者的存在,海林格距离是量化两个分布之间相似性的有效度量。具体来说,我们应用基于hd的异常检测机制来检测SYN和基于icmpv6的DOS/DDOS攻击。这里,将Shewhart图应用于HD,建立检测阈值。使用DARPA99和ICMPv6流量数据集对所提出的机制进行了评估。结果表明,该机制能够可靠地检测DOS/DDOS洪水攻击。
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引用次数: 5
期刊
2018 International Conference on Applied Smart Systems (ICASS)
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