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2004 7th International Conference on Signal Processing Proceedings, ICSP

作者： Dong, Yan-Zhi Zhou, Xiao-Dong Wang, Changjing Xie, Wei-Gang Dep. of Automat. Control Engineering Nav. Aero. Engineering Institute Yantai 264001 China Dep. of Armament Engineering Nav. Aero. Engineering Institute Yantai 264001 China Dep. of Information Science Weihai Branch Shandong University Weihai 264209 China

ISBN: (纸本)0780384075

The image segmentation is the most important key in tracking processing of IR imaging precise guidance. Its effect determines the accuracy and result of following processing directly. The soft mathematical morphology can compress the noise effectively, get better processing results and complete processing in real time. So it is well adapted to infrared images processing. In this paper, we employed suitable structuring system based on the soft morphology theory and threshold theory to perform the image segmentation of actual ship infrared image. First, the soft erosion operation was used to eliminate the sea noise. Next, the soft dilation was used to remove the darker detail. Finally, the image segmentation was completed. We discussed the algorithm and listed some processing results. We also compared the algorithm with other traditional image segmentation operators such as Otsu method. The simulation results illustrate that the algorithm is better than the traditional methods and can get better image segmentation results. It can be used widely in IR tracking processing.

关键词： Image segmentation

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Study on a novel DC/DC converter based on interleaved parallel

Study on a novel DC/DC converter based on interleaved parall...

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2nd International Workshop on Intelligent Systems and Applications, ISA2010

作者： Xin, Yibo Wu, Xin Fang, Huajing Dep.of Control Science and Engineering HuaZhong University of Science and Technology Wuhan China Dep. of Electrical Engineering and Automation Luoyang Institute of Science and Technology Luoyang 471023 China Dep.of Computer and Information Engineering Luoyang Institute of Science and Technology Luoyang China

ISBN: (纸本)9781424458745

This paper introduces the design of the parallel connection of DC/DC power supplies. The topology of system configuration and performed modeling were stated. The problems such as the ripple electric current sharing of parallel connected DC power modules, and the circuit and the working mode of the DC/DC modules, the configuration of the parallel connection and their solutions were discussed .The system control strategy were analyzed and simulated based on MATLAB/Pspice. The experimental results verify that the parallel connection of DC/DC power is suitable for the low-voltage high-current output DC-DC converter. ©2010 IEEE.

关键词： DC-DC converters

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An Analysis of Haskell Parallel Programming Model in the HaLVM 4

An Analysis of Haskell Parallel Programming Model in the HaL...

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4th International Conference on Computing and Applied Informatics 2019, ICCAI 2019

作者： Cheon, Junseok Kim, Yeoneo Hur, Taekwang Byun, Sugwoo Woo, Gyun Dep. of Electrical and Computer Engineering Pusan National University Korea Republic of Dep. of Computer Science Kyungsung University Korea Republic of Smart Control Center of LG Electronics Korea Republic of

Recently, cloud computers are widely used due to the development of computing environment and network speed. Unikernel is considered to be an attractive operating system in the manycore environment that effectively provides cloud computers. HalVM is a unikernel coded in Haskell. In this paper, we analyze the performance of Haskell running in a unikernel, which has shown good parallel programming performance in a manycore environment. In this paper, we analyze the performance of Haskell running in a unikernel, while Haskell has shown good performance in a manycore environment. To do this, we select HaLVM as the target operating system and analyze the performance by testing various Haskell parallel programming models. Test result shows that HaLVM is scalable only on IVC. We also implement a library to make programming with IVC more convenient, and use this library to compare extensibility experiments. Our test shows HaLVM's scalability is 112.42% higher than Linux environment. © Published under licence by IOP Publishing Ltd.

关键词： Computer operating systems

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SSAM: A Haskell Parallel Programming STM Based Simple Actor Model 4

SSAM: A Haskell Parallel Programming STM Based Simple Actor ...

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4th International Conference on Computing and Applied Informatics 2019, ICCAI 2019

作者： Kim, Y. Cheon, J. Hur, T. Byun, S. Woo, G. Dep. of Electrical and Computer Engineering Pusan National University Korea Republic of Dep. of Computer Science Kyungsung University Korea Republic of Smart Control Center of LG Electronics Korea Republic of

As computers with manycore architecture are being widely spread, parallel programming becomes a pending issue. While parallel programming has been a challenging issue, Haskell is known to be of the best available one. The immutability and declarative nature of Haskell suit well the need for parallelism. In our previous work, we implemented the SAM, a parallel programming model based on Haskell. In this paper, we propose the SSAM, an updated version of SAM, by solving the performance overhead of SAM socket. We discuss the architecture of SSAM and its major functions and show the 14% scalability upgrade in a performance test. © Published under licence by IOP Publishing Ltd.

关键词： Parallel programming

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An EV On-Board Charger Based on Dual-Boost AC-DC Converter

An EV On-Board Charger Based on Dual-Boost AC-DC Converter

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2024 International Telecommunications Conference, ITC-Egypt 2024

作者： Amer, Omar Ashraf Abou Abdelsalam, Ibrahim Marei, Mostafa I. Madkour Company For Engineering Projects New Cairo Egypt College of Engineering and Technology Arab Academy for Science Technology & Maritime Transport Electrical & Control Engineering Dep. Cairo Egypt Ain Shams University Faculty of Engineering Electrical Power and Machines Dep. Cairo Egypt

ISBN: (纸本)9798350351408

This paper evaluates the performance of a double-stage converter for electric vehicles onboard charger applications. The dual-boost AC-DC converter is chosen as a front-end converter since it has higher efficiency, small passive element size, and lower EMI interference than the other AC-DC converters. A coupled inductor-based design for the AC-DC converter is chosen to overcome issues related to reserve current flowing problems for the rectifier body diodes and achieve zero-current switching (ZCS). Based on an LLC resonant network, the back-end converter provides galvanic isolation. To achieve ZVS, the LLC resonant converter frequency is higher than the resonance frequency. The suggested LLC resonant converter differs from the traditional LLC resonant in using two identical tiny transformers instead of utilizing one large transformer. This approach reduces the current stress on the secondary winding and decreases converter diode conduction losses. © 2024 IEEE.

关键词： Transformer windings

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OFF-Board EV Charger Based on Interleaved AC-DC Boost Converter

OFF-Board EV Charger Based on Interleaved AC-DC Boost Conver...

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2024 International Telecommunications Conference, ITC-Egypt 2024

作者： Diab, Noher M. Abdelsalam, Ibrahim Hamad, Mostafa S. Technical Electricity Market Affairs Dep. Cairo Egypt College of Engineering & Technology Arab Academy for Science Technology & MaritimeTransport Electrical and Control Engineering Dep. Cairo Egypt Arab Academy for Science Technology and Maritime Transport Research and Innovation Center Alamein51718 Egypt

ISBN: (纸本)9798350351408

This paper presents an adaptable modular three-phase off-board electric vehicle (EV) fast charger. Each phase of the utility supplies is connected to a single-phase AC-DC module, and the DC output of each module is parallel connected. each AC-DC module is composed of 3-level interleaved boost converters (front-end converter) and galvanic isolation with a single active bridge (back-end converter) with a resonant circuit, to assure soft switching by employing zero voltage transition (ZVT). The proposed control strategy has been implemented to remove the harmonic component and maintain a stable charging current. Besides, keep the power factor close to unity. The proposed EV charger is a suitable fast charging service for EVs in less time with low distortion, less device stress, and an efficient way. MATLAB/SIMULINK Simulation test results of the proposed system are also presented, validating the proposed topology. © 2024 IEEE.

关键词： Resonant circuits

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IMPROVED STATE ESTIMATION IN AN MPC ALGORITHM BASED ON FUZZY DECISION

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IFAC Proceedings Volumes 2005年第1期38卷 267-272页

作者： Nima Daneshpour Mohammad Reza Jahed Motlagh Dep. of Control Engineering Iran University of Science and Technology Tehran Iran

Due to the difficulties arising in state estimation in Model Predictive control (MPC) algorithms, Kalman filtering and dynamic matrix control (DMC) estimation approaches were combined in the current work. Then a weighting average of both estimated states was passed to the algorithm. To determine the weighting coefficient of the mentioned average, a fuzzy supervisor was designed to control the combined estimation. An industrial process ‘heavy oil fractionator' was used for simulation. The results demonstrated the improved performance of the approach particularly in better disturbance rejection capability.

关键词： State Estimation Predictive control Kalman Filter Fuzzy Supervision Process control

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Dynamic performance test on UHF RFID tags

Dynamic performance test on UHF RFID tags

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International Conference on Computer science & Education (ICCSE)

作者： Hou, Zhou-Guo He, Yi-Gang Li, Bing She, Kai Zuo, Lei Zhu, Yan-Qing College of Electrical and Information Engineering Hunan University Changsha 410082 China Dep. of Communication and Control Engineering Hunan Institute of Humanities Science and Technology Loudi 417000 China

ISBN: (纸本)9781424460052

The signal transmission and measurement methods of the passive UHF radio-frequency identification (RFID) system are discussed in this paper. Parts of tag's communication performance, which conform to the ISO/IEC 18000-6 Type C, are obtained by using the software-defined radio test platform. The received power by the platform changes when the communication parameters vary. The measurement results show that the small Tari, half duty cycle and higher modulation index in baseband signal coding allow the RFID system to receive larger power, also allow the RFID system to get larger read range. ©2010 IEEE.

关键词： Radio transmission

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Development of rescue robot with expandable side crawler

Development of rescue robot with expandable side crawler

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IASTED International Conference on Robotics, Robo 2010

作者： Hirano, Go Furuno, Seiji Dep. of Electrical and Communication Engineering Faculty of Humanity-Oriented Science and Engineering Kinki University 11-6 Kayanomori Iizuka Fukuoka 820-8555 Japan Dep. of Control and Information Systems Engineering Kitakyushu National College of Technology 5-20-1 Shii Kokuraminami-ku Kitakyusyu Fukuoka 802-0985 Japan

ISBN: (纸本)9780889868595

In this paper, we develop a rescue robot that searches for the victim in the disaster scene. To go into a narrow space in such a scene, size of the robot should be small. But the ability to pass over the trench and the rubble is important. We propose the crawler type robot which has the expandable side crawler. This mechanism can enlarge the mobility of the robot by expanding the side crawler when it is necessary. And this rescue robot pass the rubble by using the side crawler as the arm. So that the swing mechanism for the side crawler is also installed. Details of the developed robot and several experiments are denoted in this paper.

关键词： Robots

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Partially isolated three-port converter for electric vehicle charging applications 25

Partially isolated three-port converter for electric vehicle...

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25th International Middle East Power System Conference, MEPCON 2024

作者： Galal, Omar Yasser Abdelsalam, Ibrahim Marei, Mostafa I. Ain Shams University Faculty of Engineering Electrical Power and Machines Department Cairo Egypt Arab Academy for Science Technology & Maritime Transport College of Engineering & Technology Electrical and Control Engineering Dep. Cairo Egypt

ISBN: (纸本)9798350379648

This proposal investigates an energy management control strategy for a single stage off-board electric vehicle charger. The charger topology is a three-port dc-dc-dc converter (TPC) of the partially isolated type. This converter links two dc sources at different voltage levels with common ground and an isolated output EV battery dc port. The TPC is primarily derived from the integration of an interleaved boost with the series resonant dual active bridge (DAB) topology. The phase shift combined with pulse width modulation (PSM+ PWM) technique is utilized to achieve flexible power management strategy among three ports. Operating principles of the converter are discussed with the aid of steady state waveforms. A PSCAD-based simulation program is used for assessing the dynamics of this control system and verifying its effectiveness for photovoltaic (PV) powered off-board electric vehicle charger applications. © 2024 IEEE.

关键词： DAB Electric vehicle interleaved boost Off-board charger resonant converter three-port dc-dc converter

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