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2018 6th International Conference on Control Engineering & Information Technology (CEIT)最新文献

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A systematic mapping study of usability vs security 可用性与安全性的系统映射研究
Nur Merdanoğlu, Pınar Onay Durdu
Usability and security are two of the inevitable but conflicting quality factors in today’s multi-user modern computing environment. Although usability is considered to be an essential component of a secure system, not many studies focused on these two factors together. This study aimed to determine the general trends regarding the usability and security issues. Therefore, a systematic mapping approach was applied with the articles published on these two issues together between years 2006 and 2016 to reveal the research trends in this research area. 179 papers, which were indexed in web of science, were included for the mapping. The results revealed that many researches dealt with usability and security issues. They reported problems of efficiency and learnability from usability perspective and authentication from security perspective. They mainly adopt usability evaluation methods rather than any specific usability-security specific method and a few proposed recommendations or a method for design or improvement of usable security.
在当今的多用户现代计算环境中,可用性和安全性是两个不可避免但相互冲突的质量因素。尽管可用性被认为是安全系统的重要组成部分,但将这两个因素放在一起进行研究的研究并不多。本研究旨在确定关于可用性和安全性问题的一般趋势。因此,本文采用系统的制图方法,将2006年至2016年在这两个问题上发表的文章结合起来,揭示该研究领域的研究趋势。179篇被web of science收录的论文被纳入地图绘制。结果表明,许多研究涉及可用性和安全性问题。他们从可用性的角度报告了效率和可学习性问题,从安全性的角度报告了身份验证问题。它们主要采用可用性评估方法,而不是任何特定的可用性-安全性特定方法和一些提出的建议或方法来设计或改进可用性安全性。
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引用次数: 3
Adaptive Control of a 3 DoF Helicopter with Linear and Nonlinear Reference Models 基于线性和非线性参考模型的三自由度直升机自适应控制
Bedrettin Mahmut Kocagil, Sinan Ozcan, Ahmet Cagri Arican, Umit Mufit Guzey, E. H. Çopur, M. U. Salamci
Adaptive control methods are widely used for the control of both linear and nonlinear dynamical systems. Among the adaptive control approaches, Model Reference Adaptive Control (MRAC) method has a systematic design feature in which response of a stable reference model is targeted to be followed by the dynamical system. In general, Linear Time Invariant (LTI) Reference Models are considered in the MRAC design and the adaptation rule is formulated accordingly. In this paper, the linear reference model is altered with a stable nonlinear one and the adaptation rule is re-formulated to cope with the nonlinearity. The stable nonlinear reference model is generated by using the State Dependent Riccati Equation (SDRE) approach and the adaptation rule is also updated by using the same SDRE idea. The effects of altering the linear reference model to the nonlinear counterpart are shown in the MRAC formulations. In addition to the new MRAC formulations, the proposed MRAC algorithm is applied to a 3 DoF helicopter test bed to reveal the advantages of the nonlinear reference model.
自适应控制方法广泛应用于线性和非线性动力系统的控制。在自适应控制方法中,模型参考自适应控制(MRAC)方法具有系统设计的特点,即以稳定参考模型的响应为目标,使动态系统遵循其响应。一般来说,在MRAC设计中考虑线性时不变(LTI)参考模型,并据此制定自适应规则。本文将线性参考模型改为稳定的非线性参考模型,并重新制定适应规则以适应非线性。采用状态相关Riccati方程(SDRE)方法生成稳定非线性参考模型,并采用相同的SDRE思想更新自适应规则。在MRAC公式中显示了将线性参考模型更改为非线性对应模型的影响。在给出新的MRAC公式的基础上,将该算法应用于3自由度直升机试验台,验证了该非线性参考模型的优越性。
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引用次数: 3
Adaptive Optimal Control of MAGLEV Systems: : An Augmented Error Correction Technique 磁悬浮系统的自适应最优控制:一种增广误差校正技术
Y. Aydin, F. Gurleyen
A method of designing adaptive controller for high performance active magnetic bearings (AMB) is represented. The approach combines two simple architectures often referred to as a Dynamic Feedback Linearization (DFL) and recent advances in adaptive control design techniques to form a new approach for AMB. The procedure enables the designer to explicitly define the desired closed loop dynamics. The result is a straight forward procedure that enables the design of a robust stabilizing adaptive controller that forces the system dynamics to the specified desired dynamics, despite disturbances, modelling uncertainties, and variations in AMB dynamics. This method also guarantees the robustness of both stability and system performance and enables the design for other unstable, magnetic levitation plants.
提出了一种高性能主动磁轴承自适应控制器的设计方法。该方法结合了两种简单的结构,通常称为动态反馈线性化(DFL)和自适应控制设计技术的最新进展,形成了一种新的AMB方法。该程序使设计人员能够显式地定义所需的闭环动力学。结果是一个直接的过程,可以设计一个鲁棒稳定自适应控制器,使系统动力学达到指定的期望动力学,尽管有干扰、建模不确定性和AMB动力学的变化。该方法还保证了稳定性和系统性能的鲁棒性,并可用于其他不稳定的磁悬浮工厂的设计。
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引用次数: 0
Flexible and efficient model-based congestion detection approach 灵活高效的基于模型的拥塞检测方法
Zeroual Abdelhafid, F. Harrou, Ying Sun
This paper addresses the problem of road traffic congestion detection. We propose an effective approach to detect traffic congestion by combining the piecewise switched linear traffic (PWSL) and Shewhart control scheme. This approach uses PWSL model to describe the evolution of traffic density, and Shewhart chart to detect traffic congestions based on residuals obtained from PWSL model. The PWSL-Shewhart approach is evaluated using traffic data from the four-lane State Route 60 (SR-60) freeway in California. Results indicate that our approach accomplished reliable detection of traffic congestion.
本文主要研究道路交通拥堵检测问题。将分段交换线性交通(PWSL)与Shewhart控制方案相结合,提出了一种有效的交通拥塞检测方法。该方法使用PWSL模型来描述交通密度的演变,并根据PWSL模型得到的残差,利用Shewhart图来检测交通拥堵。PWSL-Shewhart方法使用加州60号州际公路(SR-60)四车道高速公路的交通数据进行评估。结果表明,该方法实现了对交通拥堵的可靠检测。
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引用次数: 2
Enhancement of Full Coverage Markov Model for Diverse Systems with Common Cause Failures 多系统共因故障全覆盖马尔可夫模型的改进
E. Dogruguven, I. Ustoglu
Development of mission critical safety systems requires much effort as the resulted system will have impacts on the human life, property and environment. The design criteria such as data interchange between CPUs, synchronization, computation speed and diagnostic measures shall exhaustively be evaluated along with the effects of the parameters used in the reliability and safety calculations ex tunc. This study focuses on the average frequency of a dangerous failure of the safety function (PFHG). In comparison to formulas provided in IEC 61508, a comprehensive and innovative Markov model is proposed for diverse architecture, which helps to cover different safety relevant states to get quantitative results more correctly than provided in the standards and previous studies. The proposed model is applied to the vital computer to be used in the railway domain for CBTC metro and ERTMS ETCS systems and compared with the current models.
关键任务安全系统的开发将对人类的生命、财产和环境产生影响,需要付出很大的努力。对cpu之间的数据交换、同步、计算速度、诊断措施等设计标准,以及可靠性和安全性计算中使用的参数的影响,都要进行详尽的评估。本研究的重点是安全功能(PFHG)危险失效的平均频率。与IEC 61508提供的公式相比,提出了一种针对不同架构的全面创新的马尔可夫模型,有助于涵盖不同的安全相关状态,从而比标准和先前的研究更准确地获得定量结果。将该模型应用于CBTC地铁和ERTMS ETCS系统的关键计算机中,并与现有模型进行了比较。
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引用次数: 0
Computer Aided Brain Tumor Detection via Rule Based Eliminated Watershed Segmentation 基于规则的消去分水岭分割的计算机辅助脑肿瘤检测
Pelin Görgel, Nurşah Dincer
Brain cancer is one of the most fateful diseases today. Early diagnosis is of great importance in the treatment of this disease. To accomplish a fast and accurate diagnosis, numerous studies have been performed around the world. In this study, a computer aided tumor detection task is proposed for brain MR images. To prevent over-segmentation a set of methods such as bilateral, gauss, order statistics filters, morphological and sharpening operations are applied for denoising, emphasizing fine details and enhancement steps prior to watershed segmentation. Finally, a rule based elimination is proposed to reduce the false positive detections and increase the performance. Experimental results demonstrate that the proposed method is satisfying to detect brain tumors.
脑癌是当今最致命的疾病之一。早期诊断对本病的治疗至关重要。为了实现快速准确的诊断,世界各地进行了大量研究。本研究提出了一种基于脑磁共振图像的计算机辅助肿瘤检测任务。为了防止过度分割,采用双边滤波、高斯滤波、阶统计滤波、形态学和锐化运算等方法进行去噪,在分水岭分割之前强调细节和增强步骤。最后,提出了一种基于规则的消除方法,以减少误报检测,提高性能。实验结果表明,该方法对脑肿瘤的检测是满意的。
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引用次数: 3
Realization of human-robot collaboration in hybrid assembly systems by using wearable technology 基于可穿戴技术的混合装配系统人机协作实现
Mustafa Çoban, Gökhan Gelen
Together with improvements in robot technology, the number of research conducted on the interaction between humans and robots has increased. As a result of these researches, collaborative robots (cobot) emerged. The fourth industrial revolution, usage of wearable technologies, and the internet of things increase the significance of cobot and its applications. In this study, the realization of human-robot collaboration in hybrid assembly systems in which humans and robots cooperate to perform assembly tasks is aimed. The interaction between human and robot is achieved by using a wearable armband that can sense muscle signals. By using this device, the end of human operation can be recognized by the robot. In order to carry out hybrid assembly, tasks to be performed by the human and the robot are determined, and a robot control algorithm is created to ensure that the products are assembled appropriately. As a performance test, elapsed time to assemble the same number of products with human-robot collaboration is compared with the assembly process performed by the robot alone. Results show that the hybrid assembly process with human-robot collaboration is faster and more effective than the assembly process performed by the robot alone.
随着机器人技术的进步,对人与机器人之间相互作用的研究数量有所增加。作为这些研究的结果,协作机器人(cobot)出现了。第四次工业革命、可穿戴技术和物联网的使用,增加了协作机器人及其应用的重要性。本研究的目标是在混合装配系统中实现人与机器人协同完成装配任务。人与机器人之间的互动是通过使用可感知肌肉信号的可穿戴臂带来实现的。通过使用该装置,机器人可以识别人类操作的结束。为了进行混合装配,确定了人和机器人的任务,并创建了机器人控制算法,以确保产品的适当装配。作为性能测试,将人机协作组装相同数量产品所花费的时间与机器人单独完成的组装过程进行比较。结果表明,与机器人单独进行装配相比,人机协作的混合装配过程速度更快,效率更高。
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引用次数: 5
Trajectory Tracking of a Quadcopter Using Fuzzy Logic and Neural Network Controllers 基于模糊逻辑和神经网络控制器的四轴飞行器轨迹跟踪
Burak Celen, Y. Oniz
In this work, the trajectory tracking control of an Unmanned Aerial Vehicle (UAV) has been realised using fuzzy logic and neural network based controllers. Parrot AR.Drone 2.0 has been selected as the test platform. For simulated and real-time experimental studies, a square shaped reference trajectory has been generated, and the discrepancies from this trajectory in x-and y-directions along with their derivatives have been employed as the input signals to the proposed controllers. The update rules for the neural network have been derived based on the variable structure systems theory to enable stable online tuning of the parameters. The obtained results indicate that both fuzzy logic and neural network controllers can be applied effectively to the trajectory tracking of a drone, and particularly neural networks with variable structure systems theory based learning algorithms exhibit a highly robust behaviour against disturbances.
本文采用模糊逻辑和基于神经网络的控制器实现了无人机的轨迹跟踪控制。我们选择Parrot AR.Drone 2.0作为测试平台。在仿真和实时实验研究中,生成了一个方形参考轨迹,并将该轨迹在x和y方向上的差异及其导数作为所提出控制器的输入信号。基于变结构系统理论推导了神经网络的更新规则,实现了参数的在线稳定整定。研究结果表明,模糊逻辑和神经网络控制器都可以有效地应用于无人机的轨迹跟踪,特别是基于变结构系统理论学习算法的神经网络对干扰具有很高的鲁棒性。
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引用次数: 5
Investigation of bone age assessment with convolutional neural network by using DoG filtering and à trous wavelet as preprocessing techniques 采用DoG滤波和粗小波预处理技术的卷积神经网络骨龄评估研究
Mahdi Nezhad Asad, Ismail Cantürk, Fatih Genç, Lale Özyilmaz
Bone age assessment is one of the most important problems to assess Pediatric growth. Various methods have been investigated to develop bone age assessment. The study of bone age assessment helps to diagnose disorders in growth progress. It is very common to monitor growth progress with left hand x-ray images. There are many method such as Tanner-Whitehouse [TW], Greulich and Pyle (G&P) methods. In this paper, we applied convolutional neural network resnet50 by preprocessing the images using different filters based on edge detection to compare effects on CNN accuracy. The main purpose of the paper is to compare the effect of DoG filtering and à trous wavelet as preprocessing techniques on bone-age assessment. It has been proved that suggested methods improved the accuracy of CNN (resnet50) in filtered images compared to the result of the non-filtered ones. The ages between 0 and 7 are analyzed to assess bone for female, male, and female male together. It is observed that there is over% 14 improvement for Female for Male %11 and for male and female %10 percent between filtered images and non-filtered images. The proposed method reached% 87.78 female and% 80 for male within 7.9 month.
骨龄评估是评估儿童生长发育最重要的问题之一。已经研究了各种方法来发展骨龄评估。骨龄评估的研究有助于诊断生长过程中的疾病。用左手x线图像监测生长过程是很常见的。有许多方法,如Tanner-Whitehouse [TW], Greulich和Pyle (G&P)方法。在本文中,我们应用卷积神经网络resnet50,在边缘检测的基础上使用不同的滤波器对图像进行预处理,比较对CNN精度的影响。本文的主要目的是比较DoG滤波和孔斯特小波作为预处理技术对骨龄评估的影响。实验证明,与未过滤的图像相比,本文提出的方法在过滤后的图像中提高了CNN (resnet50)的准确率。对年龄在0 - 7岁之间的女性、男性和女性男性的骨骼进行分析。可以观察到,女性与男性相比有超过% 14的改善%11,男性和女性在过滤图像和未过滤图像之间有超过%10的改善。该方法在7.9个月内,女性达到87.78 %,男性达到80 %。
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引用次数: 1
Fuzzy Logic Based Self-Driving Racing Car Control System 基于模糊逻辑的自动驾驶赛车控制系统
B. Korkmaz, Ugur Bugra Etlik, Aykut Beke, T. Kumbasar
In this study, we propose a fuzzy logic based self-driving car control system and its deployment into the JavaScript Racer game. In the design of the self-driving system, it is aimed to design an intelligent vehicle control system such that the racing car finishes the race in the shortest time without getting out of the road. To accomplish such a goal, the proposed intelligent driving system takes up and merges the frameworks of control theory, fuzzy logic and computer vision. In this structure, computer vision is used for lane detection while the fuzzy logic control is employed for positioning and regulating the speed of the racing car. The paper presents in detail the structure and design of the intelligent driving system by presenting all of its design steps. The efficiency of the fuzzy logic based self-driving racing car control system is shown with results collected from the game environment.
在这项研究中,我们提出了一个基于模糊逻辑的自动驾驶汽车控制系统,并将其部署到JavaScript赛车游戏中。在自动驾驶系统的设计中,旨在设计一个智能的车辆控制系统,使赛车在最短的时间内完成比赛,而不会偏离道路。为了实现这一目标,所提出的智能驾驶系统采用并融合了控制理论、模糊逻辑和计算机视觉的框架。该结构采用计算机视觉进行车道检测,模糊逻辑控制进行赛车的定位和速度调节。本文通过介绍智能驾驶系统的各个设计步骤,详细介绍了智能驾驶系统的结构和设计。基于模糊逻辑的自动驾驶赛车控制系统的有效性得到了仿真结果的验证。
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引用次数: 2
期刊
2018 6th International Conference on Control Engineering & Information Technology (CEIT)
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