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2016 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)最新文献

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Feature extraction of surface electromyography (sEMG) and signal processing technique in wavelet transform: A review 表面肌电特征提取及小波变换信号处理技术综述
Nuradebah Burhan, M. Kasno, R. Ghazali
Electromyography (EMG) is used to measure and keep information of the electrical activity that produced by muscles during contract and relax. The electrical activity is detected with the help of EMG electrodes. This review paper will focus on usage of common EMG signal recording techniques which is surface electromyography (sEMG). During sEMG recording, there are some recognized noises and motion artifact which will affect sEMG signal. Hence, several of signal processing had been implemented to remove the noises and acquired the important signals which contain useful information. sEMG feature extraction is highlighted part in signal processing which extract features in sEMG signal. In this paper, several of sEMG feature extraction that applied any of three main domains which are time domain (TD), frequency domain (FD) and time-frequency domain (TFD) had been analyzed and studied to determine the good feature extraction method.
肌电图(EMG)用于测量和保存肌肉在收缩和放松过程中产生的电活动的信息。电活动是在肌电图电极的帮助下检测的。本文将重点介绍常用的肌电信号记录技术,即表面肌电图(sEMG)。在表面肌电信号的记录过程中,存在一些可识别的噪声和运动伪影,它们会影响表面肌电信号。为此,对信号进行了多种处理,去除噪声,获取包含有用信息的重要信号。表面肌电信号特征提取是信号处理中的重点部分,它对表面肌电信号进行特征提取。本文对几种表面肌电信号特征提取方法进行了分析研究,选取了时域(TD)、频域(FD)和时频域(TFD)三种主要提取方法中的任意一种,确定了较好的特征提取方法。
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引用次数: 17
Control of an under actuated hovering-type autonomous underwater vehicle for moving to a point and following a circular path 欠驱动悬停式自主水下航行器沿圆周轨迹移动到某一点的控制
M. F. Yahya, M. Arshad
A hovering autonomous underwater vehicle usually has at least four thrusters which gives it the ability to propel in all directions. By decreasing the number of thruster, the AUV will have more room to accommodate for other devices. However, the AUV would become an under actuated system. From literature, there are various works had been studied to control an under actuated AUV. However, many of the works only considers either vertical or horizontal aspects of the AUV motion and single type of trajectory problem. In this paper, proportional and proportional-integral controllers are proposed to solve two trajectory problems of moving to a point and following a path in 3 dimensional spaces. Results show that the implementation of the control improves the response of the system to be much faster and reduces steady state error so that desired output is achieved.
一个悬停的自主水下航行器通常至少有四个推进器,这使它能够向各个方向推进。通过减少推进器的数量,AUV将有更多的空间来容纳其他设备。然而,AUV将成为一个欠驱动系统。从文献上看,对欠驱动水下航行器的控制进行了各种各样的研究。然而,许多工作只考虑了AUV运动的垂直或水平方面以及单一类型的轨迹问题。本文提出了比例控制器和比例积分控制器来解决三维空间中移动到点和沿路径的两种轨迹问题。结果表明,该控制的实施大大提高了系统的响应速度,减小了稳态误差,从而达到了期望的输出。
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引用次数: 2
Development of electro pneumatic trainer embedded with Programmable Integrated Circuit (PIC) and graphical user interface (GUI) for educational applications 基于可编程集成电路(PIC)和图形用户界面(GUI)的教育用电动气动教练机的开发
I. Burhan, R. Othman, A. A. Azman
Electro Pneumatic Trainer for educational applications is developed as supporting tools towards the existing typical teaching and learning process. The main objective is to improve the learning outcome towards student's cognitive knowledge and practical skill where the existing teaching and learning for electro pneumatic courses conducted in the classroom without emphasizing on simulation and complex practical aspect. Generally, computer graphic or simulation can reduce the unsuccessful of practical implementation during the practical session through installation error. Visual Basic (VB) was used as the platform for graphical user interface (GUI) and using Programmable Integrated Circuit (PIC) as the interface between the GUI and hardware of Electro Pneumatic Trainer. The development of Electro Pneumatic Trainer interfacing between PIC and VB has been designed and improved by involving various types of electro pneumatics instruments such as single acting cylinder, double acting cylinder, semi rotary motor, air motor, and linear drive. Newly developed Electro Pneumatic Trainer controller interface are able to be re-programme for numerous combination of tasks. Based on Practical Work Assessment Form evaluated by the lecturers, there is an average marks of 40% and 40% of improvement on teaching and learning (cognitive) and practical's skill respectively when newly developed Electro Pneumatic Trainer were used by students during the teaching and learning process. It is also user friendly and embedded with systematics graphical diagram inspiring students for conducting the practical session.
用于教育应用的电动气动培训机是作为对现有典型教学过程的支持工具而开发的。现有的电气气动课程教学在课堂上进行,不注重模拟和复杂的实践环节,主要目的是提高学生的认知知识和实践技能的学习效果。通常,计算机图形化或仿真可以减少由于安装错误而导致的实际实施失败。采用Visual Basic (VB)作为图形用户界面(GUI)平台,采用可编程集成电路(PIC)作为图形用户界面与电动气动教练机硬件之间的接口。设计并改进了PIC与VB接口的电气动教练机的开发,涉及到单作用气缸、双作用气缸、半旋转电机、气动马达、直线驱动等多种类型的电气动仪表。新开发的电子气动训练器控制器接口,能够重新编程,为众多的任务组合。根据讲师评估的实际工作评估表,学生在教学过程中使用新开发的电动气动培训机,在教与学(认知)和实践技能方面的平均得分分别为40%和40%。它也是用户友好的,并嵌入了系统的图形图表,激励学生进行实践会议。
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引用次数: 2
Control of autonomous surface vehicle for acoustic source tracking 自主水面车辆声源跟踪控制
M. Majid, M. Arshad
Autonomous surface vehicle (ASV) is developed to fulfill requirement of many offshore applications. One of the examples is tracking an underwater target of interests. Tracking underwater target involves two general steps, target position estimation and target following. In this paper, a control strategy for ASV performing underwater acoustic source tracking is presented. Firstly, method of acoustic source position estimation is discussed. Secondly, mathematical models to represent the ASV kinematic and kinetic are developed. Thirdly, based on the estimated position of the acoustic source and linearized dynamic model, guidance and speed controllers of the ASV are developed to track the position of the acoustic source. The developed controllers are designed based on PID control structure. The performance of the controllers in tracking the acoustic source is demonstrated through simulation results.
自主水面航行器(ASV)的发展是为了满足许多海上应用的需求。其中一个例子是追踪一个水下的兴趣目标。水下目标跟踪一般包括目标位置估计和目标跟踪两个步骤。本文提出了一种用于水下声源跟踪的ASV控制策略。首先,讨论了声源位置估计方法。其次,建立了表示ASV运动学和动力学的数学模型。第三,基于估计的声源位置和线性化的动力学模型,开发了ASV的制导和速度控制器来跟踪声源的位置。所开发的控制器是基于PID控制结构设计的。仿真结果验证了控制器在跟踪声源方面的性能。
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引用次数: 2
Hybrid micro-grid control and active power sharing using MIT rule based on speed droop controller 基于速度下垂控制器的MIT规则混合微网控制与有功共享
M. M. Mahdi, A. Z. Ahmad
This work investigates dynamic behavior and improves the performance of the active power sharing. The transfer of micro-grid from grid-connected mode to island mode is faced by many challenges. In addition, the minimizing frequency fluctuation during sudden changes in the load is still an issue. A new proposed method to control the grid frequency for active power sharing is presented using adaptive MIT rule. The comparison of the response is then compared with the conventional PI controller for the output response verification. The results show the proposed method producing promising and better response. Micro-grid model is developed using Matlab/Simulink.
本文研究了有功功率共享的动态特性,提高了有功功率共享的性能。微电网从并网模式向孤岛模式的转变面临着诸多挑战。此外,在负载突然变化时,最小化频率波动仍然是一个问题。提出了一种利用自适应MIT规则控制有功共享电网频率的新方法。然后将响应的比较与传统的PI控制器进行输出响应验证。结果表明,该方法具有较好的响应效果。利用Matlab/Simulink开发了微电网模型。
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引用次数: 2
Undergraduate student experience in development of ZVS power converter for voltage control with low cost microcontroller 具有低成本单片机电压控制用ZVS电源变换器开发经验
S. A. Zulkifli, Fatin Nur Fasya Ramli, Syazwan Razali
This paper presents an integration of a low cost microcontroller with a power converter for controlling the output voltage. Here, it will benefit the UTHM final year student in order to apply what have been taught during Power Electronics subject in Year 3. The power converter that has been developed is the zero voltage switching (ZVS) with inverter voltage control mechanism. As for the microcontroller application, the Raspberry Pi has been used. A test on open loop and closed loop conditions have been applied using Proportional Integral (PI) control for controlling the Pulse Width Modulation (PWM) signal pattern for inverter output in hardware experiment test. The PI controller is developed and simulated using the MATLAB/Simulink software and then downloaded to the Arduino and Raspberry Pi microcontroller boards for testing purposes. At the end of the project, the students are able to understand more especially on integrating the control mechanism to the microcontroller device using a power converter in order to achieve the control target output.
本文介绍了一种低成本微控制器与功率转换器的集成,用于控制输出电压。在这里,它将有利于我校最后一年级的学生,以便应用在第三年电力电子学科中所学的知识。已开发的功率变换器是具有逆变电压控制机制的零电压开关(ZVS)。至于微控制器的应用,树莓派已经被使用。在硬件实验测试中,采用比例积分(PI)控制逆变器输出脉宽调制(PWM)信号模式,进行开环和闭环条件下的测试。PI控制器使用MATLAB/Simulink软件进行开发和仿真,然后下载到Arduino和树莓派微控制器板上进行测试。在项目结束时,学生们能够更多地了解如何使用功率转换器将控制机制集成到微控制器设备上,以实现控制目标输出。
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引用次数: 4
Two-wheeled wheelchair stabilization control using fuzzy logic controller based particle swarm optimization 基于模糊逻辑控制器的两轮轮椅稳定控制
N. F. Jamin, Normaniha Abdul Ghani
Designing a control strategy of two-wheeled wheelchair is a very challenging task due to the unstable and highly nonlinear system. In the paper the system is modeled by mimicking a double-link inverted pendulum concept and the mathematical equations is derived using Euler-Lagrange method. Then the state-space representation is applied to the Simulink block diagram in Matlab. The control parameter of the system is compared between trial-and-error method and Particle Swarm Optimization (PSO) algorithm. This strategy is to find the optimal value for the system to get better performance. The system will be simulated using Fuzzy Logic Control (FLC) and FLC-PSO using Matlab/Simulink environment. Simulation results show that the FLC-PSO is better than FLC in terms of overshoot and settling time.
由于系统的不稳定性和高度非线性,设计两轮轮椅的控制策略是一项非常具有挑战性的任务。本文采用双连杆倒立摆的概念对系统进行了建模,并用欧拉-拉格朗日方法推导了系统的数学方程。然后将状态空间表示应用于Matlab中的Simulink方框图。比较了试错法和粒子群算法对系统控制参数的影响。该策略是为系统找到最优值以获得更好的性能。在Matlab/Simulink环境下,采用模糊逻辑控制(FLC)和FLC- pso对系统进行仿真。仿真结果表明,FLC- pso在超调量和稳定时间方面优于FLC。
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引用次数: 7
Natural rubber — Carbon nanotubes composites, recent advances and challenges for electrical applications 天然橡胶-碳纳米管复合材料,电气应用的最新进展和挑战
M. Izadi, F. Danafar, M. Kadir
Over the last three decades, electrical and electronic industry is the leading industry in Malaysia in terms of export income and employment opportunities. However, to keep up with its international competition, Malaysia requires introducing novel improved products in this field. In this respects, using the natural resources available in the country is a fascinating option for developing electrical products. Natural rubber (NR), obtained from a tropical tree, has been widely considered as a base element in various electrical equipments. Despite of having excellent elasticity, original form of NR has low hardness, durability and tears resistance that limits its practical usage. Nanostructures, due their extraordinary characteristics, have indicated great improvements in NR-based composites. The results in terms of properties improvement are different depending on the types of nanofillers used. Among nanostructures, Carbon nanotubes (CNTs) have attracted a great attention in NR reinforcing. This paper presents the recent advances and state of the art for fabricating nanocomposites comprising NR and CNTs, as a sole filler or additive. The electrical properties of nanocomposite and its electrical applications are taken into account. The CNT/NR can be added to plastering materials for lightning protection of buildings, where high value of electrical conductivity is needed.
在过去的三十年中,电气和电子工业在出口收入和就业机会方面是马来西亚的主导产业。然而,为了跟上国际竞争,马来西亚需要在这一领域引入新颖的改进产品。在这方面,利用该国现有的自然资源开发电气产品是一个迷人的选择。天然橡胶(NR)是从热带树木中提取的,被广泛认为是各种电气设备的基础元件。尽管原始形式的天然橡胶具有优异的弹性,但其硬度、耐久性和抗撕裂性较低,限制了其实际使用。纳米结构由于其非凡的特性,在nr基复合材料中显示出巨大的进步。在性能改善方面的结果是不同的,取决于所使用的纳米填料的类型。在纳米结构中,碳纳米管(CNTs)在NR补强方面受到了广泛的关注。本文介绍了制备含NR和cnt的纳米复合材料的最新进展和现状,这些纳米复合材料可作为单一填料或添加剂。研究了纳米复合材料的电学性能及其电学应用。CNT/NR可添加到需要高导电性的建筑物防雷抹灰材料中。
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引用次数: 4
Suppression of Parkinson's hand-like tremor using fuzzy-PID controller 模糊pid控制对帕金森手样震颤的抑制作用
A. As’arry, H. Jamaluddin, Tuan A. Z. Rahman, K. A. Rezali, Z. Zain
This paper presents the performance evaluation of an active vibration technique in suppressing human hand tremor. A PID integrated with fuzzy logic controller is proposed to control a linear electromagnet actuator and then applied onto a four Degree-of-Freedoms (DOFs) biodynamic model which emulate a Parkinson Disease (PD) hand. Heuristic method is employed in searching for appropriate parameters values for the proposed controller. Then, a comparative study between the performances of Fuzzy-PID controller and conventional PID controller tuned using Ziegler-Nichols method is done. The simulation study results demonstrates a comparable performance between Fuzzy-PID controller and conventional PID controller. Fuzzy-PID controller was effectively attenuated about 96.77% of initial tremor magnitude while for the PID controller is about 89.37%.
本文介绍了一种主动振动技术在抑制手部震颤中的性能评价。提出了一种PID与模糊控制器相结合的线性电磁铁作动器控制方法,并将其应用于模拟帕金森病手部的四自由度生物动力学模型。采用启发式方法搜索控制器的合适参数值。然后,对模糊PID控制器与采用齐格勒-尼科尔斯法整定的传统PID控制器的性能进行了比较研究。仿真研究结果表明,模糊PID控制器与传统PID控制器性能相当。模糊PID控制器的有效衰减幅度约为96.77%,而PID控制器的有效衰减幅度约为89.37%。
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引用次数: 5
Implementation of TRL (Thru-Reflect-Line) calibration kit for power amplifier measurement 实现TRL(穿透反射线)校准套件的功率放大器测量
S. S. Hamid, M. F. Ain, S. Mohd, R. A. Zawawi, Nuha A. Rhaffor, A. A. Manaf
The conventional Short-Open-Load-Thru (SOLT) calibration technique and measurement problem in microwave devices are investigated in this paper. Tremendous development in mobile communication increases the demand for accuracy and performance characterizations of wireless devices over a range of frequencies. Due to this fact, simplified version of calibration technique with better features is developed in order to improve the measurements accuracy. Therefore, the work carried out in this research is to implement a simplified version of Thru-Reflect-Line (TRL) calibration standard kit that matched the requirement of the Power Amplifier(PA). The proposed technique operates in the range of frequency from 2.5Ghz to 2.57GHz in order to improve the gain of the power amplifier in real measurement environment.
本文研究了传统的短开负载通(SOLT)校准技术及其在微波器件中的测量问题。移动通信的巨大发展增加了对无线设备在频率范围内的精度和性能特性的需求。因此,为了提高测量精度,开发了具有更好特性的简化版校准技术。因此,在本研究中进行的工作是实现一个简化版本的通反射线(TRL)校准标准套件,以匹配功率放大器(PA)的要求。为了提高实际测量环境下功率放大器的增益,该技术工作在2.5Ghz ~ 2.57GHz的频率范围内。
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引用次数: 0
期刊
2016 IEEE International Conference on Automatic Control and Intelligent Systems (I2CACIS)
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