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2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)最新文献

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Detection of water leakage in buried pipes using infrared technology; A comparative study of using high and low resolution infrared cameras for evaluating distant remote detection 利用红外技术检测埋地管道漏水利用高、低分辨率红外相机评估远距离遥感的比较研究
B. Shakmak, A. Al-Habaibeh
Water is one of the most precious commodities around the world. However, significant amount of water is lost daily in many countries through broken and leaking pipes. This paper investigates the use of low and high resolution infrared systems to detect water leakage in relatively dry countries. The overall aim is to develop a non-contact and high speed system that could be used to detect leakage in pipes remotely via the effect of the change in humidity on the temperature of the ground due to evaporation. A small scale experimental test rig has been constructed to simulate water leakage in The Great Man-Made River Project in Libya, taking into consideration the dryness level of the desert sand and the scaled dimensions of the system. The results show that the infrared technology is an effective technology in detecting water leakage in pipes. The low resolution system has been found as valuable as the high resolution system in detecting water leakage. The results indicate the possibility of distant remote detection of leakage in water systems using infrared technologies which could be mobilised using drones, helium balloons, aeroplanes or other similar technologies.
水是世界上最珍贵的商品之一。然而,在许多国家,每天都有大量的水因管道破裂和泄漏而流失。本文研究了在相对干旱的国家使用低分辨率和高分辨率红外系统来检测漏水。总体目标是开发一种非接触式高速系统,该系统可用于通过蒸发引起的湿度变化对地面温度的影响来远程检测管道泄漏。考虑沙漠沙地的干燥程度和系统的尺度,建立了模拟利比亚大人工河工程漏水的小型实验试验台。结果表明,红外技术是检测管道漏水的一种有效技术。低分辨率系统与高分辨率系统在检测漏水方面具有同样的价值。研究结果表明,利用红外技术远程检测水系统泄漏的可能性,这种技术可以利用无人机、氦气球、飞机或其他类似技术进行动员。
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引用次数: 29
Robotino obstacles avoidance capability using infrared sensors 利用红外传感器的Robotino避障能力
Tariq Younis Ali, Mohammad M. Ali
Most of the recent mobile robot researchers focus on obstacle avoidance and path tracking in unknown environment. This paper presents a new algorithm using Straight-Line Equation adaptation mechanism that makes Robotino reaching its destination accurately, also to enable it to detect and to avoid static or dynamic obstacles using nine infrared sensors. A brief Robotino dynamic description is discussed to help in understanding the proposed control algorithm. A detailed algorithm design procedure is evaluated. The simulation results showed the effectiveness of the proposed algorithm in the sense of avoiding obstacles without collision through Robotino predefined path.
目前移动机器人的研究主要集中在未知环境下的避障和路径跟踪。本文提出了一种利用直线方程自适应机制的新算法,使Robotino能够准确到达目的地,并利用9个红外传感器检测和避开静态或动态障碍物。为了帮助理解所提出的控制算法,本文讨论了一个简短的Robotino动态描述。详细的算法设计过程进行了评估。仿真结果表明,该算法在通过Robotino预定义路径避障无碰撞的情况下是有效的。
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引用次数: 8
Networked control of parallel DC/DC buck converters 并联DC/DC降压变换器的网络化控制
A. Khalil, O. Mohamed, Jihong Wang
Microgrids and Hybrid Electric Vehicles rely on parallel DC/DC converters for power generation. DC/DC converters are connected in parallel to share the same load. The control signals are distributed through wires. The wiring increases the complexity and reduces the reliability. The recent advances in shared wireless networks made them viable and cheap alternative to direct wiring. Distributing the control signals over shared networks reduces the complexity in the wiring and enhances the reliability. Transmitting control signals through shared network induces time delay and data loss which may destabilize the system. These imperfections make the system stochastic and in many cases these imperfection can be modeled using Markov chains. This paper presents the stabilization of parallel DC/DC converters over stochastic nondeterministic network represented by Markov chains.
微电网和混合动力汽车依靠并联DC/DC转换器发电。DC/DC转换器并联连接,以共享相同的负载。控制信号通过电线传送。布线增加了复杂性,降低了可靠性。共享无线网络的最新进展使其成为直接布线的可行且廉价的替代方案。将控制信号分布在共享网络中,降低了布线的复杂性,提高了可靠性。通过共享网络传输控制信号会产生时间延迟和数据丢失,从而导致系统不稳定。这些缺陷使得系统是随机的,在许多情况下,这些缺陷可以用马尔可夫链来建模。研究了用马尔可夫链表示的随机不确定性网络上并联DC/DC变换器的镇定问题。
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引用次数: 12
Effect of topic on the Arabic language used on social networks and mobile phone communications 话题对社交网络和手机通讯中使用阿拉伯语的影响
M. Z. Khedher, Gheith A. Abandah, Sami M. Ababneh, A. A. Zghoul, Waleed A. Al-Anati, Mamoun Hattab
This paper focuses on the effects of topic on the Arabic language used in Facebook, Twitter, news sites, blogging sites, and mobile phone messaging. The results presented in this paper are based on a comprehensive study that was carried out using 8,538 text samples from these five forums. The sample topics are categorized into nine categories: political, social, economic, academic, religious, scientific, sports, arts, and others. The effect of topic is analyzed on several Arabic language aspects including the language whether Arabic, English, or mixed; the alphabet whether Arabic, English, or Arabizi; the dialect whether standard, colloquial, or mixed; the use of symbols; the style whether normal, metaphor, cynical, vulgar, or other; and the text cohesion level. This paper shows that there are large differences found in these six language aspects among the nine topic categories. Most notably, standard and refined language is common in serious topics such as religion and politics. Colloquial Arabic dialect and weak cohesion with Arabizi alphabet is common in casual topics such as social and academic topics.
本文的重点是主题对在Facebook、Twitter、新闻网站、博客网站和手机短信中使用的阿拉伯语的影响。本文提出的结果是基于一项综合研究,该研究使用了来自这五个论坛的8538个文本样本。样本主题分为九类:政治、社会、经济、学术、宗教、科学、体育、艺术和其他。主题的影响分析了几个阿拉伯语方面,包括语言是否阿拉伯语,英语,或混合;字母表,无论是阿拉伯语、英语还是阿拉伯语;方言:标准的、口语化的或混合的方言;符号的使用;风格是否正常、隐喻、玩世不恭、庸俗或其他;以及语篇衔接水平。研究表明,这九个主题类别在这六个语言方面存在很大差异。最值得注意的是,在宗教和政治等严肃话题中,标准和精炼的语言很常见。在社会、学术等休闲话题中,阿拉伯语方言的口语化和与阿拉伯语字母的弱衔接是很常见的。
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引用次数: 5
Analysis of the mutual influence of supply mains and electrical consumer in tasks of induction motors diagnostics 感应电动机诊断任务中供电电源与用电用户相互影响的分析
A. S. Al-Mashakbeh, M. Zagirnyak, D. Mamchur, A. Kalinov
This paper presents an approach to singling out the influence of supply mains low-quality, namely, non-sinusoidality and phase asymmetry, on the consumer of electric energy, particularly, induction motor. The main contribution of the paper is developed technique for analysis the composition of constant component of instantaneous power signal which is formed by instantaneous current and voltage harmonics of same frequencies. This analysis allows one to detect source of particular power harmonic: nonlinear consumer or non-sinusoidal and/or unsymmetrical supply mains. This information may be used in tasks of induction motor diagnostics basing on electrical signals spectra analysis to detect harmonics caused by supply mains low-quality and harmonics, caused by faults presence, which help improve reliability of diagnostics result.
本文提出了一种方法,以挑出供电电源低质量,即非正弦和相位不对称,对电能的消费者,特别是感应电动机的影响。本文的主要贡献是开发了一种分析由同频率的瞬时电流和电压谐波组成的瞬时功率信号的恒分量组成的技术。这种分析允许人们检测特定功率谐波的来源:非线性用户或非正弦和/或不对称电源。这些信息可用于基于电信号频谱分析的感应电机诊断任务中,检测由供电质量低下引起的谐波和故障产生的谐波,有助于提高诊断结果的可靠性。
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引用次数: 1
Energy management and control of a stand-alone photovoltaic/ultra capacitor/battery microgrid 独立光伏/超级电容器/电池微电网的能量管理与控制
E. Jamshidpour, S. Saadate, P. Poure
In this paper, the aggregation and implementation of a new energy management method in a microgrid power system is presented. The energy management is based on the use of a hybrid storage system. The Ultra Capacitors are used for facing high frequency variation of the load, such as in transient state, while the batteries are in charge of slow load /source variations. Then early ageing of the batteries are avoided. The advanced control system proposed in this study allows to choose the suitable storage element in order to face correctly the production/consummation variation. The whole system, including PV generator, hybrid storage system and a realistic load, all connected to a common DC-bus, is first modeled. The simulations by using Matlab are then carried out which confirm the good performances of the proposed energy management and associated control system.
本文提出了一种新的能量管理方法在微电网系统中的聚合与实现。能源管理是基于混合存储系统的使用。超级电容器用于面对负载的高频变化,例如瞬态,而电池负责缓慢的负载/源变化。这样就避免了电池的过早老化。本研究提出的先进控制系统可以选择合适的存储元件,以正确面对生产/完成变化。首先对整个系统进行了建模,包括光伏发电机、混合存储系统和实际负载,所有这些都连接到公共直流母线上。利用Matlab进行了仿真,验证了所提出的能量管理及相关控制系统的良好性能。
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引用次数: 9
Automatic vehicle perpendicular parking design using saturated control 车辆垂直自动泊车设计采用饱和控制
P. Petrov, F. Nashashibi
This paper considers the perpendicular reverse parking problem of front wheel steering vehicles. Relationships between the widths of the parking aisle and the parking place, as well as the parameters and the starting position of the vehicle for planning a collision-free reverse perpendicular parking in one maneuver are presented. A nonlinear saturated (tanh-type) feedback steering controller for straight-line tracking is proposed and evaluated. It is demonstrated that the saturated controller, which is continuous, achieves quick steering can be successfully used in solving parking problems. Simulation results and first experimental tests confirm the effectiveness of the proposed control scheme.
研究了前轮转向车辆垂直倒车问题。给出了停车通道宽度与停车位置之间的关系,以及规划一次机动无碰撞倒车垂直停车的车辆参数和起始位置。提出并评估了一种用于直线跟踪的非线性饱和(tanh型)反馈转向控制器。实验结果表明,饱和控制器可以实现连续的快速转向,可以成功地用于解决停车问题。仿真结果和初步实验验证了所提控制方案的有效性。
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引用次数: 6
On preventing ARP poisoning attack utilizing Software Defined Network (SDN) paradigm 利用软件定义网络(SDN)模式防止ARP中毒攻击
M. Masoud, Yousf Jaradat, Ismael Jannoud
In this work, SDN has been utilized to alleviate and eliminate the problem of ARP poisoning attack. This attack is the underlying infrastructure for many other network attacks, such as, man in the middle, denial of service and session hijacking. In this paper we propose a new algorithm to resolve the problem of ARP spoofing. The algorithm can be applied in two different scenarios. The two scenarios are based on whether a network host will be assigned a dynamic or a static IP address. We call the first scenario SDN_DYN; the second scenario is called SDN_STA. For the evaluation process, a physical SDN-enabled switch has been utilized with Ryu controller. Our results show that the new algorithm can prevent ARP spoofing and other attacks exploiting it.
在这项工作中,SDN被用来缓解和消除ARP中毒攻击的问题。这种攻击是许多其他网络攻击的底层基础设施,例如中间人攻击、拒绝服务攻击和会话劫持。本文提出了一种解决ARP欺骗问题的新算法。该算法可以应用于两种不同的场景。这两种场景取决于网络主机分配的是动态IP地址还是静态IP地址。我们称第一种场景为SDN_DYN;第二个场景称为SDN_STA。在评估过程中,Ryu控制器使用了支持sdn的物理交换机。实验结果表明,该算法可以有效防止ARP欺骗和其他利用该算法的攻击。
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引用次数: 39
Risk management in Agile software development: A comparative study 敏捷软件开发中的风险管理:比较研究
Aalaa Albadarneh, Israa Albadarneh, A. Qusef
The main goal of agile development methods is to reduce risk thereby resulting in more successful and effective information systems. Indeed, Finding out, analyzing, prioritising, and planning risks are important activities in all development approaches, including Agile development. However, while there is an extensive body of academic literature on risk management, few little researches have attempted to study risk management in Agile development projects. This paper discusses the Risk Management (RM) activities in Agile software development, and shows how using Agile can help with traditional RM process. Finally, the paper sheds light on the benefits and limitations of some Agile methodologies from a RM perspective and highlights directions for future work in this topic.
敏捷开发方法的主要目标是降低风险,从而产生更成功和有效的信息系统。事实上,发现、分析、确定优先级和规划风险是所有开发方法(包括敏捷开发)中的重要活动。然而,虽然有大量关于风险管理的学术文献,但很少有研究尝试研究敏捷开发项目中的风险管理。本文讨论了敏捷软件开发中的风险管理活动,并说明了如何使用敏捷来帮助传统的风险管理过程。最后,本文从RM的角度阐明了一些敏捷方法的优点和局限性,并强调了该主题的未来工作方向。
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引用次数: 34
PSO-AG: A Multi-Robot Path Planning and obstacle avoidance algorithm PSO-AG:多机器人路径规划与避障算法
Ghaith Bilbeisi, Nailah Al-Madi, F. Awad
Robot path planning is one of the most challenging tasks as it involves several parameters and different constraints. Robots moving in an environment face many challenges such as avoiding obstacles. Path planning aims at directing the robot to reach a target via a collision-free path. Online Path Planning allows robots to move in an environment they do not have prior knowledge about and ought to discover while moving. This paper introduces, PSO-AG, an online multi robot path planning algorithm that combines the benefits of particle swarm optimization and Agoraphilic algorithms. In PSO-AG, particle swarm optimization works as the moving path planner that decides the next point for the robots to reach the target, and Agoraphilic works as the moving controller that steers the robots towards the target while avoiding obstacles along the path. Simulation was used to evaluate the performance of PSO-AG in different scenarios; including different sizes of robots swarms and different levels of environment difficulty; ranging from obstacle-free to partially obstructed environment. Experiments showed promising results of PSO-AG's scalability and target reaching rate.
机器人路径规划是最具挑战性的任务之一,因为它涉及多个参数和不同的约束条件。在环境中移动的机器人面临着许多挑战,比如避开障碍物。路径规划的目的是引导机器人通过无碰撞的路径到达目标。在线路径规划允许机器人在他们没有先验知识的环境中移动,并且应该在移动时发现。本文介绍了一种结合粒子群算法和Agoraphilic算法优点的在线多机器人路径规划算法PSO-AG。在PSO-AG中,粒子群优化作为移动路径规划器,决定机器人到达目标的下一个点,Agoraphilic作为移动控制器,引导机器人向目标移动,同时避开路径上的障碍物。通过仿真对PSO-AG在不同场景下的性能进行了评估;包括不同大小的机器人群和不同等级的环境难度;从无障碍到部分受阻的环境。实验结果表明,PSO-AG算法具有良好的可扩展性和目标达标率。
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引用次数: 7
期刊
2015 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)
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