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2017 International Seminar on Intelligent Technology and Its Applications (ISITIA)最新文献

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Welding defect classification based on convolution neural network (CNN) and Gaussian kernel 基于卷积神经网络和高斯核的焊接缺陷分类
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124091
A. Khumaidi, E. M. Yuniarno, M. Purnomo
Visual inspection process for weld defects still manually operated by human vision, so the result of the test still highly subjective. In this research, the visual inspection process will be done through image processing on the image sequence to make data accuracy more better. CNN as one of the image processing technique can determine the feature automatically which is suitable for this problem in order to classify the variation of each weld defect pattern. Classification using Convolution Neural Network (CNN) consist of two stages: extraction image using image convolution and image classification using neural network. Gaussian kernel used for blurring image, it helps the extraction of images without losing the main information from the original image, this filter also minimize the occurrence of interference or noise. Results of the classification used to get the category of weld defects with high accuracy as a variable of a weld inspection process whether the weld is pass the standard or not. The proposed system has obtained classification with validation accuracy of 95.83% for four different type of welding defect. The data input of this research is the result of images captured by a webcam.
焊接缺陷的目视检测过程仍然依靠人的视觉手动操作,因此测试结果仍然具有很强的主观性。在本研究中,视觉检测过程将通过对图像序列进行图像处理来完成,以提高数据的精度。CNN作为图像处理技术之一,可以自动确定适合该问题的特征,从而对各个焊缝缺陷形态的变化进行分类。使用卷积神经网络(CNN)进行分类包括两个阶段:使用图像卷积提取图像和使用神经网络进行图像分类。高斯核用于模糊图像,它有助于在不丢失原始图像主要信息的情况下提取图像,该滤波器还可以最大限度地减少干扰或噪声的发生。该分类结果用于获得焊缝缺陷的分类,其准确度较高,可作为焊缝检验过程中焊缝是否合格的一个变量。该系统对4种不同类型的焊接缺陷进行了分类,验证准确率达95.83%。本研究的数据输入是由网络摄像头拍摄的图像的结果。
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引用次数: 70
Adaptive Gaussian parameter particle swarm optimization and its implementation in mobile robot path planning 自适应高斯参数粒子群算法及其在移动机器人路径规划中的实现
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124087
N. Setyawan, R. E. A. Kadir, A. Jazidie
Path planning based on heuristic optimization method is developed to simplify the path planning issues into optimization problems. Particle Swarm Optimization (PSO) is one of the heuristic optimization methods often used because of its simplicity, easy to implement and has few parameters to set. However, the basic PSO algorithm has difficulties balancing exploration and exploitation, and suffer from premature convergence, it efficiency to solve path planning problem may be restricted. Aiming to overcome these drawbacks and solving the path planning problem efficiently, this paper proposed the Gaussian parameter updating rule use to speed up the convergence by maintaining exploration and exploitation of the particle. Then, particle re-initialization is proposed after analyzing the behavior of PSO algorithm to prevent premature convergence. Simulation result shows in benchmark test with Adaptive Inertia (AIW) PSO and standard PSO that the proposed PSO algorithm can find optimal solution /aster than the other algorithm which can convergence in less than 150 iterations. Furthermore, particle re-initialization can find optimal solution efficiently which result in 3% more shortest, 10% more smooth and guaranteed to collision free path.
提出了基于启发式优化的路径规划方法,将路径规划问题简化为优化问题。粒子群优化算法(PSO)是一种常用的启发式优化方法,具有简单、易于实现、参数设置少等优点。然而,基本粒子群算法难以平衡探索和开发,且存在过早收敛的问题,可能会限制其解决路径规划问题的效率。为了克服这些缺点,有效地解决路径规划问题,本文提出了高斯参数更新规则,通过保持对粒子的探索和利用来加快收敛速度。然后,在分析粒子群算法行为的基础上,提出粒子重新初始化,防止粒子群算法过早收敛。在AIW自适应惯性粒子群算法和标准粒子群算法的基准测试中,仿真结果表明,所提出的粒子群算法比其他算法更快地找到最优解,在150次迭代内收敛。此外,粒子重新初始化可以有效地找到最优解,使最短路径增加3%,光滑路径增加10%,保证无碰撞路径。
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引用次数: 11
Dynamic economic dispatch using chaotic bat algorithm on 150kV Mahakam power system 基于混沌蝙蝠算法的150kV马哈坎电力系统动态经济调度
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124065
Yun Tonce Kusuma Priyanto, M. Maulana, A. Giyantara
This paper presents chaotic bat algorithm to solve dynamic economic dispatch (DED) problem. Various load in 4 hours considering to solve the DED problem which focused on minimizing the total cost of generation power in each hour. To demonstrate the effectiveness of the proposed method, the DED problem performed on 150 kV Mahakam power system on East Kalimantan and compared with bat algorithm and particle swarm optimization. The result shows the proposed method provide a good and reliable result compared to the other method used in this paper.
提出了一种求解动态经济调度问题的混沌蝙蝠算法。考虑4小时内各种负荷,以每小时发电总成本最小为重点来解决DED问题。为验证所提方法的有效性,以东加里曼丹的150 kV Mahakam电力系统为例,与蝙蝠算法和粒子群算法进行了比较。结果表明,与其他方法相比,该方法具有较好的可靠性。
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引用次数: 1
Analysis of acceleration in aging insulation due to the effect of humidity and contaminant in induction motor loaded 感应电机负载中湿度和污染物对绝缘老化加速的影响分析
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124075
Labib Muttaqin, D. A. Asfani, I. M. Y. Negara, Dapis
In this study, the experimental of accelerated aging in induction motor insulation is done in a loaded state with high humidity influence and under effects of contaminant. The method used to evaluate the condition of the motor is polarization index (PI), oscillatory response test (surge test) and LCR measurement. PI is used to determine the value of polarization index and custody coil insulation via measured four direct current during the test. Oscillatory response test used to determine differences in the quality of the coil insulation based on the response to the wave oscillation with error area ratio (EAR) method. While the LCR measurement is used to detect the value of inductance, capacitance and resistance arising from the influence of humidity and contaminant in the stator's coil. Furthermore, the output PI variable and oscillation response test and LCR measurement compared to getting the tendency chart damage. Based on test results, EAR method is faster to detect decrease coil insulation in the second test by 30.5 %. Meanwhile, the new PI value was changes in its value in the fourth test. While the LCR value is not significant.
本研究是在高湿影响的负载状态和污染物作用下进行感应电机绝缘加速老化实验。评估电机状态的方法是极化指数(PI)、振荡响应试验(浪涌试验)和LCR测量。PI用于在测试过程中通过测量的四个直流电来确定极化指数和保持线圈绝缘的值。振荡响应试验采用误差面积比(EAR)法,根据对波动的响应来确定线圈绝缘质量的差异。而LCR测量则用于检测定子线圈中受湿度和污染物影响而产生的电感、电容和电阻值。进一步,将输出PI变量与振荡响应测试和LCR测量结果进行对比,得到损伤趋势图。根据测试结果,EAR方法在第二次测试中检测线圈绝缘下降的速度快30.5%。同时,新的PI值在第四次试验中发生了变化。而LCR值不显著。
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引用次数: 0
Dynamic stability modified IEEE 3 generator 9 bus with 50 MW power injection of generator XY 动态稳定性改进ieee3发电机9总线与50mw发电机XY的功率注入
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124063
I. Sulistiawati, Khaikal Mudatsir Rosidin, A. Lomi
The existence of new power injection at a system will effect system stability that existed before, so stability analyze was needed to know the system conditioning before and after power injection, and performance system after disturbance, by observe rotor angle, frequency, and voltage. The result of dynamic system show that power injection of Gen XY can supply 0,021 pu at bus 1, 0,001 at bus 2, 0,001 at bus 3, 0,0261 pu at bus 4, 0,0366 pu at bus 5, 0,0186 pu at bus 6, 0,0101 pu at bus 7, 0,0083 pu at bus 8, 0,0061 pu at bus 9. When 3 phase fault during 1–2 second happened, the frequency and rotor angle increasing. When generator XY inject system with 50 MW, the modified IEEE 3 Generator 9 Bus become increase with frequency 60.27 Hz, voltage profile increasing, rotor angle decreased close to normal conditions.
系统存在新的功率注入会影响系统原有的稳定性,因此需要进行稳定性分析,通过观察转子角度、频率和电压,了解系统在功率注入前后的状态,以及扰动后系统的性能。动态系统的结果表明,XY世代的功率注入可以在总线1处提供0,021普压,在总线2处提供0,001普压,在总线3处提供0,001普压,在总线4处提供0,0261普压,在总线5处提供0,0366普压,在总线6处提供0,0186普压,在总线7处提供0,0101普压,在总线8处提供0,0083普压,在总线9处提供0,0061普压。当1 ~ 2秒发生3相故障时,频率增大,转子角度增大。在50mw的XY发电机注入系统中,改进后的ieee3发电机9母线增加,频率为60.27 Hz,电压分布增大,转子角减小,接近正常状态。
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引用次数: 3
3D video coding development based on FPGA platform Xilinx Zynq-7000 基于Xilinx Zynq-7000 FPGA平台的3D视频编码开发
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124050
A. V. Bukit, Wirawan
Digital video compression techniques have an important role that makes transmission and storage of multimedia content in bandwidth and storage space limited environment efficient. This paper describes 3D video coding using FPGA encoder architecture for newer and more reliable multimedia technologies to drive the industry to improve services in the field of entertainment marketing, to encourage the popularization of 3D video content, supporting devices 3D capabilities, and 3D applications. As a phenomenon that occurs at this time, smartphones, tablets, and other mobile devices has surpassed the value of PC sales. Along with the growing popularity of 3D video and be applied to the mobile device, resulting in the need for storage, data transmission, and display requires an efficient coding. The design is described in VHDL and synthesized to Zynq 7000 AP SoC FPGA. The throughput of the FPGA architecture reaches a processing at 666 MHz, RAM frequency 533 MHz permitting its use in H.265/HEVC standard directed to HDTV. To improve reliability in the process of encoder, one of which can be done by implementing a code HEVC to Zynq 7000 AP SoC.
数字视频压缩技术对于在带宽和存储空间有限的环境下高效传输和存储多媒体内容具有重要作用。本文介绍了采用FPGA编码器架构进行3D视频编码的更新、更可靠的多媒体技术,以推动行业在娱乐营销领域提高服务水平,鼓励3D视频内容、配套设备3D能力和3D应用的普及。作为一种现象,智能手机、平板电脑和其他移动设备的销售额已经超过了PC。随着3D视频的日益普及和在移动设备上的应用,产生了对存储、数据传输、显示都需要高效编码的需求。该设计用VHDL语言描述,并合成到zynq7000 AP SoC FPGA上。FPGA架构的吞吐量达到666 MHz的处理,RAM频率为533 MHz,允许其用于针对HDTV的H.265/HEVC标准。为了提高编码器过程中的可靠性,可以通过在zynq7000 AP SoC上实现代码HEVC来实现。
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引用次数: 1
Impact of load shedding on frequency and voltage system 减载对频率和电压系统的影响
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124064
S. Budi, Aziz Nurdiansyah, A. Lomi
System ability to continuously supply load is very important. One of the factors that influence that system ability is frequency and voltage stability. Frequency and voltage stability need to be considered during electrical power planning and operating to avoid system instability that can cause system blackout. Load shedding need to be done to restore the system into normal condition after interference or system instability. This research discusses impact of load shedding on frequency and voltage system.
系统持续供应负荷的能力是非常重要的。影响系统性能的因素之一是频率和电压的稳定性。在电力规划和运行中需要考虑频率和电压的稳定性,以避免系统不稳定导致系统停电。在受到干扰或系统不稳定后,需要进行减载以使系统恢复正常状态。本文讨论了减载对频率和电压系统的影响。
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引用次数: 18
Design of digital lock-in amplifier for low concentration gas detection 用于低浓度气体检测的数字锁相放大器设计
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124102
Handi Rahmannuri, M. Rivai, T. A. Sardjono
In a measurement system, it is sometimes necessary to extract very small sensor signals from noise. This study performs a digital lock-in amplifier implemented on an ARM Microcontroller for detecting low concentration gas. This lock-in system has the ability to increase the sensitivity or signal to noise ratio. In the experiment, the lock-in system with the varies gain and cutoff frequency. The sensitivity and the signal to noise ratio can be considerably improved by means of the proposed system. The results showed that the signal to noise ratio of the original signal and the lock-in system with the unity gain were −4.73 dB and 4.08 dB, respectively. The higher gain implemented on the lock-in system would produce the higher signal to noise ratio. The lock-in system has also been tested for detecting of carbon monoxide gas resulting a signal to noise ratio of the gas sensor and the lock-in system are 3.9 and 15.6 dB, respectively.
在测量系统中,有时需要从噪声中提取非常小的传感器信号。本研究在ARM微控制器上实现了一种用于检测低浓度气体的数字锁相放大器。这种锁定系统具有提高灵敏度或信噪比的能力。在实验中,采用可变增益和截止频率的锁相系统。该系统可显著提高系统的灵敏度和信噪比。结果表明,原始信号和单位增益锁相系统的信噪比分别为- 4.73 dB和4.08 dB。锁相系统的增益越高,信噪比越高。锁相系统还进行了一氧化碳气体检测测试,结果表明气体传感器和锁相系统的信噪比分别为3.9和15.6 dB。
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引用次数: 7
Quadcopter path following control design using output feedback with command generator tracker based on LOS 基于LOS的四轴飞行器路径跟踪控制设计
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124090
A. Nugraha, T. Agustinah
The development of quadcopter technology has much increasing, such as in military and law enforcement agencies, for surveillance, reconnaissance and rescue mission. Also in scientific sides, it is used for mapping the condition of wind speed, detecting radiation sources, maintenance and survey. Quadcopter is a system that still have problem, which is stability, and because of that it can easily get interference from outside. This characteristic leads to the difficulties in automatic controlling the following path and set the heading of Quadcopter. Based on this problem, this paper provides the design of following path control on the horizontal plane by adding Line Of Sight algorithm so it will produce the smallest error possible. The result of the simulation show that the method which used can bring the yaw angle at the expected value algorithm. Quadcopter can do automatically following path with cross track error mean ±0.07 meters.
四轴飞行器技术的发展有了很大的提高,如在军事和执法机构,用于监视,侦察和救援任务。在科学方面,它也用于绘制风速状况,探测辐射源,维修和测量。四轴飞行器是一个仍然存在问题的系统,那就是稳定性,因为它很容易受到外界的干扰。这一特点导致四轴飞行器在自动控制跟随路径和设定航向方面存在困难。针对这一问题,本文提出了在水平面上加入视线算法的跟踪路径控制设计,使跟踪路径控制产生的误差尽可能小。仿真结果表明,所采用的方法能使偏航角达到期望值算法。四轴飞行器可以自动跟踪路径,交叉航迹误差平均±0.07米。
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引用次数: 10
Particle swarm optimization-based BLDC motor speed controller with response speed consideration 考虑响应速度的基于粒子群优化的无刷直流电机速度控制器
Pub Date : 2017-08-01 DOI: 10.1109/ISITIA.2017.8124079
M. Ridwan, D. Riawan, H. Suryoatmojo
In this paper, a Particle Swarm optimization (PSO) based controller is implemented to a BLDC motor. A PSO-based controller is designed for controlling BLDC motor speed with acceleration consideration. PSO is used to find the appropriate PI controller parameters, Kp and Ki according to the speed reference and response speed designed. The result shows that the PSO-based controller designed is able to control the speed of BLDC motor properly with the desired response speed.
本文提出了一种基于粒子群算法的无刷直流电机控制器。针对无刷直流电动机的速度控制问题,设计了一种基于pso的控制器。根据设计的速度参考和响应速度,利用粒子群算法找到合适的PI控制器参数Kp和Ki。结果表明,所设计的基于pso的控制器能够以期望的响应速度控制无刷直流电机的速度。
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引用次数: 11
期刊
2017 International Seminar on Intelligent Technology and Its Applications (ISITIA)
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