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IEEJ Transactions on Electronics, Information and systems 2007年第7期127卷 1022-1029+7页

作者： Takimoto, Hironori Mitsukura, Yasue Fukumi, Minoru Akamatsu, Norio Dept. of Control Engineering Sasebo National College of Technology Japan Graduate School of Bio-Applications and System Enginnering Tokyo University of Agriculture and Technology Japan Dept. of Information Science and Intteligent Syst. Faculty of Eng. University of Tokushima Japan Sasebo National College of Technology Japan Tokyo University of Agriculture and Technology Japan University of Tokushima Japan

This paper presents a method for gender and age estimation which is robust for facial pose changing. We propose a feature point detection method which is the Adapted Retinal Sampling Method (ARSM), and a feature extraction method. A basic concept of the ARSM is to add knowledge about the facial structure into the Retinal Sampling Method. In this method, feature points are detected based on 7 points corresponding to facial organ from face image. The reason why we used 7 points to basis of feature point detection is that facial organ is conspicuous in facial region, and it is comparatively easy to extract. As features which is robust for facial pose changing, a skin texture, a hue and a gabor jet are used for the gender and age estimation. For classification of gender and estimation of seriate age, we use a multi-layered neural network. Moreover, we examine the left-right symmetric property of the face concerning gender and age estimation by the proposed method.

关键词： Feature extraction

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Power decoupling method comparison of isolated single-phase matrix converters using center-tapped transformer with PDM 7

Power decoupling method comparison of isolated single-phase ...

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7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015

作者： Takaoka, Nagisa Takahashi, Hiroki Itoh, Jun-Ichi Chiang, Goh Teck Sugiyama, Takahide Sugai, Masaru Dept. of Electrical Engineering Nagaoka University of Technology Japan Dept. of Science of Technology Innovation Nagaoka University of Technology Nagaoka Niigata Japan Dept. of System and Electronics Engineering Dept. II Power Electronics and Control Lab. Toyota Central RandD Labs. INC. Japan

ISBN: (纸本)9781467371506

This paper presents an isolated type of single-phase matrix converter topology for PHV/EV on-board battery chargers. The proposed converter is comprised of a full bridge inverter, a high frequency transformer and a matrix converter. Due to the lack of DC link bus in matrix converter, in order to suppress the power fluctuation, a power decoupling method which only employs a center-tapped high frequency transformer and a small LC buffer where requires no additional switches is applied. On the other hand, the matrix converter applies PDM (Pulse Density Modulation) which achieve ZVS (zero voltage switching) in order to generate a 50Hz/60Hz sinusoidal waveform at the grid side. As a result, this converter shows promising features small size and high efficiency. In this paper, by harmonic analysis, the effectiveness of power decoupling method is evaluated in two cases: the PDM based on the PWM as a conventional method and the PDM based on the delta-sigma conversion. In the experimental results, the power decoupling method with the PDM based on the delta-sigma conversion reduces the DC bus current ripple by 84.8% comparing to the case where the power decoupling method is not applied, while the output voltage distortion is reduced by 64.1% compared with that of the PDM based on the PWM is applied. © 2015 IEEE.

关键词： Matrix converters

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Economic Equilibrium with Random Transactions 2

Economic Equilibrium with Random Transactions

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2nd International Conference on control systems, Mathematical Modeling, Automation and Energy Efficiency, SUMMA 2020

作者： Zhukova, Aleksandra Pospelov, Igor G. Moscow Institue of Physics and Technology Federal Research Center Computer Science and Control of Ras Dept. of Mathematical Modelling of Economic Systems Dept. of Mathematical Modelling of Complex Systems and Optimization Dept of Theoretical Economics Moscow Russia

ISBN: (纸本)9781728188409

This paper presents the advances in modelling the system of agents under the conditions of random transactions between them. We face certain challenges in this project which we would like to highlight in this presentation. The agents in the modelled system are a large number of consumers, a large number of producers and the bank as the intermediary. Consumers take loans from the bank to spend on consumption goods and producers borrow to make investment at random moments of time. The moments of time the agents deal form the Poisson flow. We present the approach to agents' optimal control problems by the Lagrange method instead of dynamic programming. This enables us obtaining the expressions for the optimal feedback control which appear to be linear in state variables. The solution to the optimal control problems are obtained using asymptotic methods assuming large frequency of transactions. Using the linearity of the agents' optimal control, we may aggregate description of agents, stock-flow consistent on the average. Instead of an ensemble of independent random transactions by agents, the description of the aggregate dynamics is deterministic. The system of equations for the aggregate dynamics is reduced to one equation. There are two cases of this equation, depending on the description of the bank. The equation has a specific form, its numerical analysis is challenging. We provide numerical results and discuss further directions of research. © 2020 IEEE.

关键词： Random processes

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Resonant Frequency Tracking control for a Linear Compressor with Assist Springs 12

Resonant Frequency Tracking Control for a Linear Compressor ...

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12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020

作者： Suzuki, Takahiro Koyama, Masaki Nagata, Syuhei Hatsuse, Wataru Takemoto, Masatsugu Ogasawara, Satoshi Hitachi Ltd. Drive System Control Research Dept. Hitachi Japan Hitachi Ltd. Reliability Science Research Dept. Hitachinaka Japan Okayama University Graduate School of Natural Science and Technology Okayama Japan Hokkaido University Graduate School of Information Science and Technology Sapporo Japan

ISBN: (纸本)9781728158266

This paper proposes a drive control method for a linear compressor driven by a linear motor. Generally, the efficiency of a linear motor itself is relatively lower than that of a rotational motor. However, higher efficiency should be achievable by adding assist springs and driving at the resonant frequency. We have developed a novel resonant frequency estimation method that calculates the phase difference between a supplied voltage and a mover position. Since the phase difference changes according to the drive frequency with respect to the resonant frequency, our method calculates the phase difference by using the arctangent of a Fourier coefficient, which controls the drive frequency to keep the phase difference at 90°. Experimental results show that the proposed method can successfully track to the resonant frequency dynamically even if the mechanical condition is changed. © 2020 IEEE.

关键词： Natural frequencies

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Optical Evanescent Field for Direct Observation of Sub-100nm Particle Motion on Glass Surface 1

Optical Evanescent Field for Direct Observation of Sub-100nm...

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1st International Conference on Robotics, Engineering, science, and technology, RESTCON 2024

作者： Khajornrungruang, Panart Permpatdechakul, Thitipat Suzuki, Keisuke Blattler, Aran Terayama, Yutaka Goto, Daiki Phaisalpanumas, Pipat Bun-Athuek, Natthaphon Phunopas, Amornphun Kyushu Institute of Technology Iizuka-Shi Mechanical Science and Technology Division Dept. of Intelligent and Control System Faculty of Computer Science and Systems Engineering Fukuoka Japan Kyushu Institute of Technology Iizuka-Shi Mechanical Information Science and Technology Division Dept. of Interdisciplinary Informatics Graduate School of Computer Science and Systems Engineering Fukuoka Japan King Mongkut's University of Technology North Bangkok Bangsue Faculty of Engineering Dept. of Production and Robotics Engineering Bangkok Thailand Kyushu Institute of Technology Iizuka-Shi Mechanical Science and Technology Course Dept. of Intelligent and Control System Graduate School of Computer Science and Systems Engineering Fukuoka Japan King Mongkut's University of Technology North Bangkok Bangsue Faculty of Engineering Dept. of Industiral Engineering Bangkok Thailand King Mongkut's University of Technology North Bangkok Bangsue College of Industrial Technology Dept. of Mechanical Engineering Technology Bangkok Thailand

ISBN: (纸本)9798350348842

To directly investigate the dynamic nanoscale phenomenon on the surface being processed in wet conditions such as precision polishing, and cleaning in semiconductor industrial, an optical method for visualization and observation of each sub-100 nm sized particle that is moving on an interface such as a silica glass surface by applying an evanescent field have been proposing. Subsequently, we developed an experimental apparatus equipped with an optical microscopy system for verifying the moving particle observation method in a laboratory scale. This article introduces some experimentally direct observation results of duplicated wet processes. © 2024 IEEE.

关键词： Visualization

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Stabilization of parametric roll resonance with active u-tanks via Lyapunov control design 10

Stabilization of parametric roll resonance with active u-tan...

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2009 10th European control Conference, ECC 2009

作者： Holden, Christian Galeazzi, Roberto Fossen, Thor I. Perez, Tristan Dept. of Engineering Cybernetics Norwegian University of Science and Technology Norway DTU Electrical Engineering Technical University of Denmark Denmark ARC Centre for Complex Dynamic Systems and Control University of Newcastle Australia

ISBN: (纸本)9783952417393

Parametric ship roll resonance is a phenomenon where a ship can rapidly develop high roll motion while sailing in longitudinal waves. This effect can be described mathematically by periodic changes of the parameters of the equations of motion, which lead to a bifurcation. In this paper, the control design of an active u-tank stabilizer is carried out using Lyapunov theory. A nonlinear backstepping controller is developed to provide global exponential stability of roll. An extension of commonly used u-tank models is presented to account for large roll angles, and the control design is tested via simulation on a high-fidelity model of a vessel under parametric roll resonance. © 2009 EUCA.

关键词： Resonance

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Circuit tolerance design using an improved immune algorithm

Circuit tolerance design using an improved immune algorithm

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2nd International Conference on Innovative Computing, Information and control, ICICIC 2007

作者： Tsai, Jinn-Tsong Ho, Wen-Hsien Chou, Jyh-Horng Liu, Tung-Kuan Dept. of Computer Science Natl Pingtung Univ. of Education Pingtung Taiwan Dept. of Medical Information Management Kaohsiung Medical University Kaohsiung Taiwan Institute of System Information and Control Natl Kaohsiung First Univ. of Science and Technology Kaohsiung Taiwan

ISBN: (纸本)0769528821

In this paper, we apply an improved immune algorithm to solve a circuit tolerance design problem, which has many design parameters and constraints. The evolutionary design approach, called a Taguchi immune algorithm (TIA), with a penalty function is proposed for solving the constrained optimization problem. The proposed TIA approach with a penalty function is effectively applied to solve the circuit tolerance design problem. © 2007 IEEE.

关键词： Networks (circuits)

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A Review of Rotation Mechanical Fault Diagnosis Research Based on Deep Domain Adaptation 9

A Review of Rotation Mechanical Fault Diagnosis Research Bas...

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9th IEEE International Conference on Big Data Computing Service and Applications, BigDataService 2023

作者： Zhang, Shun Xie, Gang Tian, Juan Shi, Hui Zhang, Xiaohong Nie, Xiaoyin Xie, Xinlin Shanxi Key Laboratory of Advanced Control and Equipment Intelligence Taiyuan China Taiyuan University of Science and Technology Dept. of Electronic and Information Engineering Taiyuan China Division of Industrial and System Engineering Taiyuan China

ISBN: (纸本)9798350333794

With the rapid development of computer technology and the Internet of Things (IoT), a large amount of data containing both healthy and faulty states can be collected from existing devices in factories. However, the usable faulty state data is scarce. Transfer learning makes it possible to train efficient and reliable neural networks with a small number of samples. Domain adaptation, as a branch of transfer learning, can effectively realize knowledge transfer between small sample data. Starting from three subcategories of deep learning-based domain adaptation methods, this article summarizes the latest research achievements and provides insights into future research directions. © 2023 IEEE.

关键词： Failure analysis

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A strategy of multi-UAV cooperative path planning based on CCPSO

A strategy of multi-UAV cooperative path planning based on C...

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IEEE International Conference on Unmanned systems (ICUS)

作者： Yuanna Liu Hao Lu dept. School of Electronics and Information Northwestern Polytechnical University Xi’an China dept. Science and Technology on Complex System Control Intelligent Agent Cooperation Laboratory Beijing China

ISBN: (纸本)9781728137933

Multi-UAV cooperative formation flying has significant advantages in broadening the scope of UAV operations and improving combat effectiveness. How to realize the cooperative path planning of multi-UAV is an open issue. In order to solve the search performance degradation as dimension increases, a strategy of multi-UAV cooperative path planning based on Cooperative Coevolution Particle Swarm Optimization (CCPSO) is proposed in this paper. Firstly, the initial Dubins path is generated for each UAV in the formation, of which the longest one is selected as the reference path. Intermediate waypoints are designed to modify the initial paths to avoid collisions with obstacles. Then, CCPSO algorithm is applied to optimize path parameters and adjust the path length to be equal to the reference path to ensure time coordination. Collision avoidance between UAVs is achieved in the collaborative evaluation phase. Finally, an formation rendezvous example and comparison with CCGA are given to explain the validity and excellent search ability of the proposed method.

关键词： Path planning Optimization Particle swarm optimization Safety Unmanned aerial vehicles Collision avoidance Planning

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Prediction of arterial travel time considering delay in vehicle re-identification

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Transportation Research Procedia 2017年 22卷 625-634页

作者： Xiaoliang Ma Fadi Al Khoury Junchen Jin System Simulation & Control Dept. of Transport Science KTH Royal Institute of Technology Teknikringen 10 Stockholm 10044 Sweden

Travel time is important information for management and planning of road traffic. In the past decades, automated vehicle identification (AVI) systems have been deployed in many cities for collecting reliable travel time data. The fast technology advance has made the budget cost of such data collection system much cheaper than before. For example, bluetooth and WiFi-based systems have become economically a more feasible way for collecting interval travel time information in urban area. Due to increasing availability of such type of data, this paper aims to develop a travel time prediction approach that may take into account both online and historical measurements. Indeed, a statistical prediction approach for real-time application is proposed, modeling the deviation of live travel time from historical distribution estimated per time interval. An extended Kalman Filter (EKF) based algorithm is implemented to combine online travel time with historical patterns. In particular, the system delay due to vehicle re-identification is considered in the algorithm development. The methods are evaluated using Automated Number Plate Recognition (ANPR) data collected in Stockholm. The results show that the prediction performance is good and reliable in capturing major trends during congestion buildup and dissipation.

关键词： Travel time real-time prediction Automated Vehicle Identification extended Kalman filter data fusion historical percentiles

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