The 2nd International Conference on Control, Instrumentation and Automation最新文献_第7页

Power system monitoring using subspace identification 利用子空间识别进行电力系统监控

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356624

A. Mohammadi, H. Khaloozadeh, R. Amjadifard

引用次数: 0

Parallel parking assistant system on car-like mobile robot 仿车移动机器人平行泊车辅助系统

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356796

Mahsa Lotfibonab, Mohammad Kiyanfar, M. Ghodsi, Parisa Lotfibonab

引用次数: 0

Genetic-PID control of elbow joint angle for functional electrical stimulation: A simulation study 功能性电刺激肘关节角度的遗传pid控制仿真研究

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356647

N. Shariati, A. Maleki, A. Fallah

{"title":"Genetic-PID control of elbow joint angle for functional electrical stimulation: A simulation study","authors":"N. Shariati, A. Maleki, A. Fallah","doi":"10.1109/ICCIAUTOM.2011.6356647","DOIUrl":"https://doi.org/10.1109/ICCIAUTOM.2011.6356647","url":null,"abstract":"Functional electrical stimulation (FES) systems restore motor functions after spinal cord injury (SCI). In this study, we used a model consists of a joint, two links with one degree of freedom, and two muscles as flexor and extensor of the joint, which simulated in MATLAB using SimMechanics and Simulink Toolboxes. The muscle model is based on Zajac musculotendon actuator and composed of a nonlinear recruitment curve, a nonlinear activation-frequency relationship, calcium dynamics, fatigue/recovery model, an additional constant time delay, force-length and force-velocity factors. In this study, we used a classic controller for regulating the elbow joint angle; a Proportional- Integral- Derivative controller. First, we tuned the PID coefficients with trial and error, and then a genetic algorithm was used to optimize them. This genetic-PID controller uses genetic algorithm to get the required pulse width for stimulating the biceps to reach the elbow joint to the desired angle. The fitness function was defined as sum square of error. The results for genetic-PID controller show faster response for reaching the range of the set point than the PID controller tuned by trial and error. However the genetic-PID is much better in terms of the rise time and the settling time, the PID tuned by trial and error has no overshoot. The time to reach the zero steady state error is half in genetic-PID in comparison to PID tuned by trial and error.","PeriodicalId":438427,"journal":{"name":"The 2nd International Conference on Control, Instrumentation and Automation","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133463858","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: 4

On the skew and sway control of container cranes 集装箱起重机斜摇控制研究

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356692

M. Mahrueyan, H. Khaloozadeh

引用次数: 1

PI controller for quarter vehicle active suspension system with optimized gains using PSO algorithm 采用粒子群算法优化增益的四分之一车辆主动悬架系统PI控制器

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356687

J. Ghafouri, A. Sakhavati, R. Jovari, G. Gharehpetian

引用次数: 2

A graphical approach to design PI controller for integrator plus dead-time processes 积分器加死时过程PI控制器的图形化设计方法

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356677

I. Momenizadeh, A. Madady, H. Reza-Alikhani

{"title":"A graphical approach to design PI controller for integrator plus dead-time processes","authors":"I. Momenizadeh, A. Madady, H. Reza-Alikhani","doi":"10.1109/ICCIAUTOM.2011.6356677","DOIUrl":"https://doi.org/10.1109/ICCIAUTOM.2011.6356677","url":null,"abstract":"The proportional-integral (PI) and proportional integral-derivative (PID) controllers are widely used in lots of industrial control systems for many years since Ziegler and Nichols proposed their first PID tuning scheme. This is because the PI/PID controller structure is simple and its principle is easier to understand than most other advanced controllers. The aim and the contribution of this paper is to develop a novel graphical method to design the PI controller for industrial processes which are modeled by an integrator plus dead time (IPDT) transfer function. For this purpose, a set of loci is developed and plotted in the controller parameters plane, which one of the quantities consists of gain and phase margins, gain and phase crossover frequencies and Smith's vector margin is constant on each locus. Next, the desired closed loop system characteristics are stated in the form of two loci. By sketching these two loci and obtaining their intersection point the controllers parameters are determined. Finally some examples are given to demonstrate the effectiveness of the proposed method.","PeriodicalId":438427,"journal":{"name":"The 2nd International Conference on Control, Instrumentation and Automation","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125464719","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: 1

Initial test and design of a soft sensor for flow estimation using vibration measurements 利用振动测量进行流量估计的软传感器的初步测试和设计

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356765

R. Safari, B. Tavassoli

引用次数: 6

A GOBF-wavelet wiener model for identification of nonlinear dynamic systems 一种用于非线性动力系统辨识的gbf -小波维纳模型

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356832

M. Salimifard, A. Safavi, M. Shaheed

引用次数: 0

Design of new soft sensors based on PCA, genetic algorithm and neural network for parameters estimation of a petroleum reservoir 基于PCA、遗传算法和神经网络的油气储层参数估计软传感器设计

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356768

H. Alaei

{"title":"Design of new soft sensors based on PCA, genetic algorithm and neural network for parameters estimation of a petroleum reservoir","authors":"H. Alaei","doi":"10.1109/ICCIAUTOM.2011.6356768","DOIUrl":"https://doi.org/10.1109/ICCIAUTOM.2011.6356768","url":null,"abstract":"A new set of soft sensors is presented, based on principal component analysis (PCA), genetic algorithm (GA) and artificial neural network (ANN) methodologies for parameters estimation of a petroleum reservoir. The crude diagrams of reservoir parameters provide valuable evaluation for petro-physical parameters. These parameters, however, are usually difficult to measure due to limitations insights on cost, reliability considerations, inappropriate instrument maintenance and sensor failures. PCA and genetic algorithm is utilized to develop new soft sensors to incorporate reliability and prediction capabilities of ANN. Genetic algorithms are used to decide the initial weights of the gradient decent methods so that all the initial weights can be searched intelligently. The genetic operators and parameters are carefully designed and set avoiding premature convergence and permutation problems. The proposed algorithm combines the local searching ability of the gradient-based back-propagation (BP) strategy with the global searching ability of genetic algorithms in the PCA subspaces. The developed soft sensors are applied to reconstruct parameters of Marun reservoir located in Ahwaz, Iran, by utilizing the available geophysical well log data.","PeriodicalId":438427,"journal":{"name":"The 2nd International Conference on Control, Instrumentation and Automation","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127229342","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

Kinematic control of a seven DOF robot manipulator with joint limits and obstacle avoidance using neural networks 基于神经网络的关节限制和避障七自由度机器人的运动控制

The 2nd International Conference on Control, Instrumentation and Automation Pub Date : 2011-12-01 DOI: 10.1109/ICCIAUTOM.2011.6356794

H. Toshani, M. Farrokhi

{"title":"Kinematic control of a seven DOF robot manipulator with joint limits and obstacle avoidance using neural networks","authors":"H. Toshani, M. Farrokhi","doi":"10.1109/ICCIAUTOM.2011.6356794","DOIUrl":"https://doi.org/10.1109/ICCIAUTOM.2011.6356794","url":null,"abstract":"In this paper, a numerical method based on neural network is presented to solve inverse kinematics problem of redundant manipulators subject to joint angle limits and obstacles in the workspace of the robot. The proposed method is performed in real time, where radial-basis function neural network is used to obtain joint angles of the robot. In order to satisfy constrains, a method called Nonlinear Quadratic Programming (NQP) is applied to update NN's weights. Moreover, it will be shown that if the Kuhn-Tucker conditions are satisfied, then convergence of NN's weights is guaranteed. Since the process is performed on-line, the computational time of obtaining the inverse kinematics solution must be suitable for real-time applications such as control of the robot manipulators. Moreover, since the convergence rate of the problem depends on the initial weights of the neural network, several initial weights are used relative to suitable factors such as feasibility of the solution and vicinity of the desired point. Simulations are carried out on the PA-10 redundant manipulator to show effectiveness of the proposed algorithm.","PeriodicalId":438427,"journal":{"name":"The 2nd International Conference on Control, Instrumentation and Automation","volume":"819 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127591844","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: 7