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2017 International Conference on System Science and Engineering (ICSSE)最新文献

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Nighttime vehicle detection and classification via headlights trajectories matching 夜间车辆检测和分类,通过前灯轨迹匹配
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030869
Tuan-Anh Vu, L. Pham, T. K. Huynh, Synh Viet-Uyen Ha
Vehicle detection and classification is an essential application in traffic surveillance system (TSS). However, recognizing moving vehicle at nighttime is more challenging because of either poorly (lack of street lights) or brightly illuminations and chaos traffic of motorbikes. Adding to this is various type of vehicles travels on the same road which falsifies the pairing results. So, this research proposes an algorithm for vehicle detection and classification at nighttime surveillance scenes which consists of headlight segmentation, headlight detection, headlight tracking and pairing and vehicle classification (two-wheeled and four-wheeled vehicles). First, bright objects are segmented by using the luminance and color variations. Then, the candidate headlights are detected and validated through the characteristics of the headlights such as area, centroid, rims, and shape. Afterward, we present a way to tracking and pairing the headlights by calculating the area ratio, spatial information on the vertical and horizontal of a headlight. Finally, the vehicle is classified into two-wheeled and four-wheeled vehicles. The novelty of our work is that headlights are validated and paired using trajectory tracing technique. The evaluation results are promising for a detection rate of 81.19% in nighttime scenes.
车辆检测与分类是交通监控系统(TSS)的重要应用。然而,在夜间识别移动的车辆更具挑战性,因为要么是糟糕的(缺乏路灯),要么是明亮的照明和混乱的摩托车交通。除此之外,不同类型的车辆在同一条道路上行驶,这伪造了配对结果。因此,本研究提出了一种夜间监控场景下的车辆检测与分类算法,该算法由前照灯分割、前照灯检测、前照灯跟踪与配对、车辆分类(两轮和四轮车辆)四个部分组成。首先,利用亮度和颜色变化对明亮物体进行分割。然后,通过前照灯的面积、质心、轮辋和形状等特征对候选前照灯进行检测和验证。随后,我们提出了一种方法来跟踪和配对的计算面积比,空间信息的垂直和水平的一个大灯。最后,车辆分为两轮和四轮车辆。我们工作的新颖之处在于,使用轨迹跟踪技术验证和配对前灯。评价结果表明,夜间场景的检测率为81.19%。
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引用次数: 9
An approach robust nonlinear model predictive control with state-dependent disturbances via linear matrix inequalities 基于线性矩阵不等式的状态相关扰动鲁棒非线性模型预测控制方法
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030909
N. Binh, Nguyen Anh Tung, Dao Phuong Nam, Cao Thanh Trung
The issue of nonlinear model predictive control has always been a topic of much concern. We will propose a new approach to robust nonlinear model predictive control to class of nonlinear model system with input constraint under state-dependent disturbances. The considered class of model is separated into linear part at current state, nonlinear part and state-dependent disturbances which are assumed to have their bound. The state-feedback control law is obtained by that solving optimization problem of upper bound of infinite horizon cost function with input constraint via LMIs. In this paper, in order to guarantee robust stability, the proposed approach must generates feasible regions which ensures the existence of a solution and stable region bounded by that. Moreover, these regions are able to contract after every sampling time to proof the robust stability of the system. The simulation results demonstrate the good performance of the proposed approach to RNMPC.
非线性模型预测控制问题一直是一个备受关注的话题。针对一类具有输入约束的非线性模型系统,在状态相关干扰下,提出了一种鲁棒非线性模型预测控制的新方法。将所考虑的一类模型分为当前状态下的线性部分、非线性部分和状态相关干扰,并假设状态相关干扰有其界。通过lmi求解具有输入约束的无限视界代价函数上界的优化问题,得到状态反馈控制律。在本文中,为了保证鲁棒稳定性,所提出的方法必须生成可行区域,该可行区域保证解的存在和稳定区域的边界。此外,这些区域在每次采样后都能够收缩,以证明系统的鲁棒稳定性。仿真结果表明了该方法在RNMPC中的良好性能。
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引用次数: 2
An extended navigation framework for autonomous mobile robot in dynamic environments using reinforcement learning algorithm 基于强化学习算法的动态环境下自主移动机器人导航扩展框架
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030892
N. Dinh, Nguyen Hong Viet, L. A. Nguyen, Hong Toan Dinh, Nguyen Tran Hiep, Pham Trung Dung, T. Ngo, Xuan-Tung Truong
In this paper, we propose an extended navigation framework for autonomous mobile robots in dynamic environments using a reinforcement learning algorithm. The main idea of the proposed algorithm is to provide the mobile robots the relative position and motion of the surrounding objects to the robots, and the safety constraints such as minimum distance from the robots to the obstacles, and a learning model. We then distribute the mobile robots into a dynamic environment. The mobile robots will automatically learn to adapt to the environment by their own experienced through the trial-and-error interaction with the surrounding environment. When the learning phase is completed, the mobile robots equipped with our proposed framework are able to navigate autonomously and safely in the dynamic environment. The simulation results in a simulated environment shows that, our proposed navigation framework is capable of driving the mobile robots to avoid dynamic obstacles and catch up dynamic targets, providing the safety for the surrounding objects and the mobile robots.
在本文中,我们使用强化学习算法为动态环境中的自主移动机器人提出了一个扩展的导航框架。该算法的主要思想是为移动机器人提供周围物体的相对位置和运动,以及机器人到障碍物的最小距离等安全约束,并提供学习模型。然后我们将移动机器人分配到一个动态环境中。移动机器人将通过与周围环境的试错互动,通过自身的经验自动学习适应环境。当学习阶段完成后,配备我们提出的框架的移动机器人能够在动态环境中自主安全地导航。仿真环境下的仿真结果表明,我们提出的导航框架能够驱动移动机器人避开动态障碍物,追赶动态目标,为周围物体和移动机器人提供安全保障。
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引用次数: 2
Digital implementation of decentralized control for multilevel converter 多电平变换器分散控制的数字化实现
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030937
G. Gateau, P. Q. Dung, M. Cousineau, P. Do, Huu Nhan Le
This paper presents the implementation of a decentralized modulation for the control of multilevel converters requiring phase-shifted carriers. Contrary to the principle using a “master” controller providing a set of interleaved carriers, the proposed method uses local interconnections between different independent elementary controllers allowing them to self-align their own carrier regardless the number of actives cells.
本文提出了一种分散调制的实现方法,用于控制需要相移载波的多电平变换器。与使用“主”控制器提供一组交错载波的原理相反,所提出的方法使用不同独立基本控制器之间的本地互连,允许它们自对齐自己的载波,而不管活动单元的数量。
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引用次数: 12
An anomaly-based network intrusion detection system using Deep learning 基于异常的深度学习网络入侵检测系统
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030867
Nguyen Thanh Van, T. N. Thinh, Le Thanh Sach
Recently, anomaly-based intrusion detection techniques are valuable methodology to detect both known as well as unknown/new attacks, so they can cope with the diversity of the attacks and the constantly changing nature of network attacks. There are many problems need to be considered in anomaly-based network intrusion detection system (NIDS), such as ability to adapt to dynamic network environments, unavailability of labeled data, false positive rate. This paper, we use Deep learning techniques to implement an anomaly-based NIDS. These techniques show the sensitive power of generative models with good classification, capabilities to deduce part of its knowledge from incomplete data and the adaptability. Our experiments with KDDCup99 network traffic connections show that our work is effective to exact detect in anomaly-based NIDS and classify intrusions into five groups with the accuracy based on network data sources.
近年来,基于异常的入侵检测技术是一种有价值的方法,既可以检测已知的攻击,也可以检测未知的/新的攻击,因此它可以应对攻击的多样性和网络攻击的不断变化的性质。基于异常的网络入侵检测系统需要考虑对动态网络环境的适应能力、标记数据的不可用性、误报率等问题。本文,我们使用深度学习技术来实现基于异常的NIDS。这些技术显示了生成模型的敏感能力,具有良好的分类能力,从不完整的数据中推断出部分知识的能力和适应性。基于KDDCup99网络流量连接的实验表明,我们的工作可以有效地准确检测基于异常的NIDS,并根据网络数据源将入侵分为五类。
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引用次数: 78
Synchronization control of Bilateral Teleoperation systems by using wave variable method under varying time delay 变时延下波动变量法双向遥操作系统同步控制
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030924
Nguyen Anh Tung, N. Binh, Tran Hoang Anh, Dao Phuong Nam, Nguyen Minh Dong
Teleoperation is a human control system enabling humans to interact with the remote environment through a dual robot system which includes a master robot and a slave robot operating in two different places. Wave variables and scattering approaches were proposed in [1],[2] with constant time delay, [3],[4] with varying time delays. This paper develops them based on different wave variables and new passivity control to guarantee the stability of the whole system against varying time delays without assumption that absolute derivative of time delays is smaller than one. The validity of the control law is based on passivity theory. In addition, force controller design is considered for increasing transparency of system. The simulation results demonstrate the good performance of the proposed controller for position synchronization.
远程操作是一种人的控制系统,使人能够与远程环境通过一个双机器人系统,其中包括一个主机器人和一个从机器人在两个不同的地方操作。[1]、[2]提出了恒定时延下的波变量和散射方法,[3]、[4]提出了变时延下的波变量和散射方法。本文在不假设时滞的绝对导数小于1的情况下,基于不同的波动变量和新的无源控制来保证整个系统对变时滞的稳定性。控制律的有效性建立在被动性理论的基础上。此外,为了提高系统的透明性,还考虑了力控制器的设计。仿真结果表明,该控制器具有良好的位置同步性能。
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引用次数: 4
A new overlap circle technique for Reducing Data Aggregation Time in Wireless Sensor Networks 一种新的减少无线传感器网络数据聚合时间的重叠圈技术
Pub Date : 2017-07-21 DOI: 10.1109/ICSSE.2017.8030934
Yao-Yu Jhuang, Tong Lin, T. D. Nguyen, Shao-I Chu, Bing-Hong Liu, Van-Trung Pham
Nowadays, the problem of using minimum number of time slots for data aggregation such that sensors can work without data collision for data transmissions has received a great deal of attention in Wireless Sensor Network (WRSN). It is worth mentioning that there exists many approaches that are tried to reduce the number of time slots for data aggregation in WSNs. However, most of previous works are fallen into reducing time slots in certain circle. In this paper, we investigate the problem of Reducing Data Aggregation Time without Data Collision (RDATDC) problem and first propose a new overlap circle technique, which is termed the Overlap-Circle-based algorithm (OCBA), to solve the RDATDC problem. Simulation results show that the OCBA has better performance than other method.
在无线传感器网络中,如何利用最小时隙进行数据聚合,使传感器在传输数据时不发生数据冲突,是一个备受关注的问题。值得一提的是,有许多方法试图减少无线传感器网络中用于数据聚合的时隙数量。然而,以往的大部分工作都是在一定的周期内缩减时间段。本文研究了减少无数据碰撞的数据聚合时间(RDATDC)问题,并首先提出了一种新的重叠圆技术,称为基于重叠圆的算法(OCBA)来解决RDATDC问题。仿真结果表明,该方法具有较好的性能。
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引用次数: 9
Dynamic programming based control for perturbed discrete time nonlinear systems 基于动态规划的摄动离散时间非线性系统控制
Pub Date : 2017-07-01 DOI: 10.1109/ICSSE.2017.8030889
H. Pham, NamHoai Nguyen, P. D. Nguyen
The work represents a dynamic programming and piecewise linearization based control strategy for a perturbed discrete-time nonlinear system. Firstly, the perturbed discrete-time nonlinear system is linearized at each sampling time. The origin system is approximated by infinite number of the linearized models. Then, the disturbances are estimated under the assumption of slow variations in input and state during a sampling period. Finally, a controller based on the dynamic programming method is designed. The proposed control strategy is applied to control a boiler-turbine system and compared to the other method with the usage of numerical simulation. The simulation results show that the proposed method gives better performance in term of overshoot and smoothness of control signals and it can be applied to other plants in industry.
本文提出了一种基于动态规划和分段线性化的摄动离散非线性系统控制策略。首先,在每个采样时间对扰动后的离散非线性系统进行线性化处理。原点系统由无限个线性化模型来近似。然后,在假设输入和状态在一个采样周期内缓慢变化的情况下估计扰动。最后,设计了基于动态规划方法的控制器。将所提出的控制策略应用于锅炉-汽轮机系统的控制,并通过数值仿真与其他控制方法进行了比较。仿真结果表明,该方法在控制信号的超调量和平滑性方面具有较好的性能,可应用于工业中的其他设备。
{"title":"Dynamic programming based control for perturbed discrete time nonlinear systems","authors":"H. Pham, NamHoai Nguyen, P. D. Nguyen","doi":"10.1109/ICSSE.2017.8030889","DOIUrl":"https://doi.org/10.1109/ICSSE.2017.8030889","url":null,"abstract":"The work represents a dynamic programming and piecewise linearization based control strategy for a perturbed discrete-time nonlinear system. Firstly, the perturbed discrete-time nonlinear system is linearized at each sampling time. The origin system is approximated by infinite number of the linearized models. Then, the disturbances are estimated under the assumption of slow variations in input and state during a sampling period. Finally, a controller based on the dynamic programming method is designed. The proposed control strategy is applied to control a boiler-turbine system and compared to the other method with the usage of numerical simulation. The simulation results show that the proposed method gives better performance in term of overshoot and smoothness of control signals and it can be applied to other plants in industry.","PeriodicalId":296191,"journal":{"name":"2017 International Conference on System Science and Engineering (ICSSE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115290290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kinect-based virtual training system for rehabilitation 基于kinect的虚拟康复训练系统
Pub Date : 2017-07-01 DOI: 10.1109/ICSSE.2017.8030836
The Chien Hoang, H. Dang, V. Nguyen
In this paper, we propose a Kinect-based virtual training system for rehabilitation system. The system is aimed to assist patients after stroke or with spiral cord injuries who consequently have movement disorders to perform rehabilitation exercises at home. Movements of patients is capture and their skeletons are tracked by means of Kinect sensor. Patient's movements are then compared to the prerecorded movements of virtual coach/trainer.
本文提出了一种基于kinect的康复系统虚拟训练系统。该系统旨在帮助中风或脊髓螺旋损伤后运动障碍的患者在家中进行康复训练。通过Kinect传感器捕捉病人的动作并追踪他们的骨骼。然后将患者的动作与虚拟教练/训练师预先录制的动作进行比较。
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引用次数: 9
Sliding mode control of a three phase induction motor based on RBF neural network 基于RBF神经网络的三相异步电动机滑模控制
Pub Date : 2017-07-01 DOI: 10.1109/ICSSE.2017.8030921
Nguyen Vinh Quan, Ng M Tam, N. Nhờ, Duong Hoai Nghia
A stator-flux-oriented vector controller of induction motor is often used in the controllers due to less depending on parameters of the motors, the parameters of the motors are nonlinear and time-varying solution conditions slip control will be applied by the brilliant advantages of stability control is slipping sustainable and as soon as the system noise. On the other hand, when the parameters of nonlinear objects changes over time, the problems keep constant speed when the load changes are difficult to implement, therefore the neural network is used to identify the speed of machines are needed to increase the stability control system. This article presents a new method of designing sliding mode controller based on radial basic function network (RBF) for three-phase asynchronous motors based a stator-flux-oriented vector controller. Two sliding controllers are designed independently for stator-flux-vector estimation and torque, in which magnetic flux is estimated and the speed of the motor is identified by RBF network, combined seven - level cascade inverter with a reduction common-mode algorithm applied to increase the stability for the controller. Simulations and experiments using Matlab / Simulink for 1-hp induction motor drive, typed 150-rad/s squirrel cage rotor, the results present velocity followed setting values at the frequency change from the lowest 50-rad/s to 150 rad highest/s, the system is still stable when the stator is changed stator resistance and rotor resistance up to 1.5 times the original value.
由于对电机参数的依赖较小,电机参数具有非线性和时变解条件,因此常采用定子磁链定向矢量控制器作为异步电机的控制器,滑差控制具有滑差持续和系统噪声很快消除的优点。另一方面,当非线性对象的参数随时间变化时,当负载变化时保持恒定速度的问题难以实现,因此需要利用神经网络来识别机器的速度以增加控制系统的稳定性。本文提出了一种基于径向基函数网络(RBF)的三相异步电动机滑模控制器设计新方法,该方法基于定子磁链定向矢量控制器。分别针对定子磁通矢量估计和转矩设计了两个独立的滑动控制器,其中磁通估计和电机速度识别采用RBF网络,结合七电平串级逆变器和减小共模算法提高了控制器的稳定性。利用Matlab / Simulink对1 hp感应电机驱动的150 rad/s型鼠笼转子进行仿真和实验,结果表明,在频率从最低的50 rad/s变化到最高的150 rad/s时,速度跟随设定值,当定子电阻和转子电阻达到原值的1.5倍时,系统仍保持稳定。
{"title":"Sliding mode control of a three phase induction motor based on RBF neural network","authors":"Nguyen Vinh Quan, Ng M Tam, N. Nhờ, Duong Hoai Nghia","doi":"10.1109/ICSSE.2017.8030921","DOIUrl":"https://doi.org/10.1109/ICSSE.2017.8030921","url":null,"abstract":"A stator-flux-oriented vector controller of induction motor is often used in the controllers due to less depending on parameters of the motors, the parameters of the motors are nonlinear and time-varying solution conditions slip control will be applied by the brilliant advantages of stability control is slipping sustainable and as soon as the system noise. On the other hand, when the parameters of nonlinear objects changes over time, the problems keep constant speed when the load changes are difficult to implement, therefore the neural network is used to identify the speed of machines are needed to increase the stability control system. This article presents a new method of designing sliding mode controller based on radial basic function network (RBF) for three-phase asynchronous motors based a stator-flux-oriented vector controller. Two sliding controllers are designed independently for stator-flux-vector estimation and torque, in which magnetic flux is estimated and the speed of the motor is identified by RBF network, combined seven - level cascade inverter with a reduction common-mode algorithm applied to increase the stability for the controller. Simulations and experiments using Matlab / Simulink for 1-hp induction motor drive, typed 150-rad/s squirrel cage rotor, the results present velocity followed setting values at the frequency change from the lowest 50-rad/s to 150 rad highest/s, the system is still stable when the stator is changed stator resistance and rotor resistance up to 1.5 times the original value.","PeriodicalId":296191,"journal":{"name":"2017 International Conference on System Science and Engineering (ICSSE)","volume":"21 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122837041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
2017 International Conference on System Science and Engineering (ICSSE)
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