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arXiv 2017年

作者： Liu, Wei Chen, Xiaogang Shen, Chunhua Yu, Jingyi Wu, Qiang Yang, Jie Key Laboratory of Ministry of Education for System Control and Information Processing Shanghai Jiao Tong University Shanghai200240 China College of Communication and Art Design University of Shanghai for Science and Technology Shanghai200093 China School of Computer Science University of Adelaide AdelaideSA5005 Australia College of Engineering University of Delaware NewarkDE19176 United States School of Computing and Communications University of Technology SydneyNSW2007 Australia

The process of using one image to guide the filtering process of another one is called Guided Image Filtering (GIF). The main challenge of GIF is the structure inconsistency between the guidance image and the target image. Besides, noise in the target image is also a challenging issue especially when it is heavy. In this paper, we propose a general framework for Robust Guided Image Filtering (RGIF), which contains a data term and a smoothness term, to solve the two issues mentioned above. The data term makes our model simultaneously denoise the target image and perform GIF which is robust against the heavy noise. The smoothness term is able to make use of the property of both the guidance image and the target image which is robust against the structure inconsistency. While the resulting model is highly non-convex, it can be solved through the proposed Iteratively Re-weighted Least Squares (IRLS) in an efficient manner. For challenging applications such as guided depth map upsampling, we further develop a data-driven parameter optimization scheme to properly determine the parameter in our model. This optimization scheme can help to preserve small structures and sharp depth edges even for a large upsampling factor (8× for example). Moreover, the specially designed structure of the data term and the smoothness term makes our model perform well in edge-preserving smoothing for single-image tasks (i.e., the guidance image is the target image itself). It performs well in several challenging applications in avoiding halos, gradient reversals and properly preserving edges with noise/texture being well smoothed. Through extensive experimental results, we show that the proposed RGIF can have promising performance in many applications such as guided depth map upsampling, flash/no flash filtering, detail enhancement, HDR tone mapping, structure smoothing and clip-art JPEG compression artifact removal. This paper is an extension of our previous work [1], [2]. Copyright © 2017, T

关键词： Image enhancement

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Power flow analysis of AC/DC hybrid microgrids

Power flow analysis of AC/DC hybrid microgrids

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IEEE Canada Electric Power Conference, EPEC

作者： A. A. Eajal Mohamed A. Abdelwahed E. F. El-Saadany K. Ponnambalam Department of Electrical and Computer Engineering University of Waterloo Waterloo ON Canada Department of Electrical and Computer Engineering Petroleum Institute (PI) Abu Dhabi UAE University of Waterloo Waterloo ON CA Department of System Engineering Design University of Waterloo Waterloo ON Canada

ISBN: (纸本)9781509019205

The future smart grid can have an AC/DC hybrid structure that enables the integration of AC/DC energy supply and demand, thus permitting the formation of AC/DC hybrid microgrids (HMGs). The AC/DC HMG is a promising concept that provides the envisioned smart grid with the plug-and-play feature. Nevertheless, understanding such hybrid systems, especially during islanding, require an accurate and robust load flow program. To this end, this paper proposes a novel robust power flow algorithm for isolated AC/DC HMGs. The power flow problem is formulated as a least-squares minimization problem, and solved using the Levenberg-Marquardt algorithm. The accuracy of the proposed load flow algorithm is validated against time domain simulation results, while its robustness is demonstrated on a highly-resistive network. The proposed load flow algorithm is expected to reveal the light for further studies on AC/DC HMGs.

关键词： Integrated circuit modeling Voltage measurement Microgrids Mathematical model Power measurement Q measurement

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Fuzzy logic controller design for intelligent air-conditioning system

Fuzzy logic controller design for intelligent air-conditioni...

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IEEE International Conference on Control Science and systems engineering (CCSSE)

作者： Nizam Uddin Ahamed Zahari Bin Taha Ismail Bin Mohd Khairuddin M.F. Rabbi S.A.M. Matiur Rahaman Kenneth Sundaraj Mechatronic and System Design Lab Faculty of Manufacturing Engineering Universiti Malaysia Pekan Pahang Malaysia Faculty of Manufacturing Engineering Universiti Malaysia Pekan Pahang Malaysia College of Computer Science and Information System Najran University Saudi Arabia AI-Rehab Research Group Universiti Teknikal Malaysia Melaka Melaka Malaysia

ISBN: (纸本)9781467398732

In efficient air cooling systems may cause of wasting energy in a great amount specially in the urban area. Being the most popular cooling system, air-conditioners have been used in domestic usage as well as in industrial applications. However, the unintelligent nature of such cooling system gives rise to excess energy consumption which causes a huge problem in the current energy hungry world. In this paper, we present design of a fuzzy logic controller for the intelligent air-conditioning system. The performance of the controller is also simulated. The proposed controller has the adaptive nature to control fan and compressor speed which leads to reducing power consumption. Also, the system controls the operation mode to retain the healthy oxygen level and humid condition of the indoor environment.

关键词： Humidity Fuzzy logic Fans Energy consumption Power demand

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Inexact Power Sharing in AC/DC Hybrid Microgrids

Inexact Power Sharing in AC/DC Hybrid Microgrids

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IEEE Canadian Conference on Electrical and computer engineering

作者： A. A. Eajal E. F. El-Saadany K. Ponnambalam Department of Electrical and Computer Engineering University of Waterloo Waterloo ON N2L 3G1 Canada Department of System Engineering Design University of Waterloo Waterloo ON N2L 3G1 Canada

ISBN: (纸本)9781467387224

The AC/DC hybrid topology for the future smart grid is a promising configuration that allows integrating the energy resources and modern loads of AC and DC type. Understanding the AC/DC hybrid microgrids (HMGs) operating in islanding mode and its operational philosophy will pave the road towards the future smart grid with a plug-and-play feature. This paper analyzes an operational aspect related to isolated AC/DC hybrid microgrids and that is the problem of inaccurate power sharing. The simulation results reveal that the unequal reactive power sharing in AC microgrids and the inexact active power sharing in DC microgrids will migrate to AC/DC hybrid microgrids. The research outcomes also show that the interlinking converters encounter the same problem of inexact power sharing.

关键词： Smart grids ADIPOQ gene Energy sources Simulation results HYBRID Hybrid electric vehicles ALTERNATING CURRENT

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Strategies for driving and egress for the vehicle of a humanoid robot in the drc finals 2015

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Journal of Institute of Control, Robotics and systems 2016年第11期22卷 912-918页

作者： Dong, Hyun Ahn Ju, Seong Shin Jun, Youngbum Sohn, Kiwon Jang, Giho Oh, Paul Cho, Baek-Kyu Department of Mechanics and Design Kookmin University Korea Republic of School of Mechanical System Engineering Kookmin University Korea Republic of Howard R. Hughes College of Engineering University of Nevada Las Vegas United States Samuel I. Ward Department of Electrical and Computer Engineering University of Hartford West HartfordCT United States

This paper presents various strategies for humanoid vehicle driving and egress tasks. For driving, a tele-operating system that controls a robot based on a human operator's commands is built. In addition, an autonomous assistant module is developed for the operator. Normal position control can result in severe damage to robots when they egress from vehicles. To prevent this problem, another approach that mixes various joint control techniques is adopted in this study. Additionally, a footplate is newly designed and attached to the vehicle floor for the ground landing phase of the egress task. The attached plate enables the robot to step down onto the ground in a safe manner. For stable locomotion, a balance controller is designed for the humanoid. For the design of the controller, the robot is modeled using an inverted pendulum that consists of a spring and a damper. Then, a state feedback controller (with pole placement and a state observer) is built based on the simplified model. Many approaches that are presented in this paper were successfully applied to a full-sized humanoid, DRC-HUBO+, in the DARPA Robotics Challenge Finals, which were held in the United States in 2015.

关键词： Anthropomorphic robots

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Modeling and design of system-in-package integrated voltage regulator with thermal effects

Modeling and design of system-in-package integrated voltage ...

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IEEE Topical Meeting on Electrical Performance of Electronic Packaging (EPEPS)

作者： S. Mueller A. K. Davis M. L. F. Bellaredj A. Singh K. Z. Ahmed M. Kar S. Mukhopadhyay P. A. Kohl M. Swaminathan Y. Wang J. Wong S. Bharathi Y. Mano A. Beece B. Fasano H. Fathi Moghadam D. Draper Center for Co-Design of Chip Package System (C3PS) School of Electrical and Computer Engineering School of Chemistry and Biochemistry Georgia Institute of Technology Atlanta GA USA Xilinx USA IBIDEN Japan GLOBALFOUNDRIES USA Oracle USA

ISBN: (纸本)9781509061112

This paper demonstrates a new approach to model the impact of thermal effects on the efficiency of integrated voltage regulators (IVRs) by combining analytical efficiency evaluations with coupled electrical and thermal simulations. An application of the approach shows that a system-in-package solution avoids thermal problems typically observed in other IVR designs. While the evaluation in this paper focuses on the thermal impact on loss in the inductor wiring and the PDN, the developed approach is general enough to also model thermal impacts on the power dissipation in the inductor cores and the buck converter chip.

关键词： Inductors Analytical models Thermal analysis Voltage control Regulators Power dissipation Magnetic cores

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On Simulation for Fuzzy Control on Oxygen Concentration of the Mixed Air Supplied by Breathing Adjuster 34

On Simulation for Fuzzy Control on Oxygen Concentration of t...

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第三十四届中国控制会议

作者： SUN Hao WANG Shou-jun SUN Qing-lin Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System The College of Mechanical Engineering Tianjin University of Technology The College of Computer and Control Engineering Nankai University Tianjin Key Laboratory of Intelligent Robotics

ISBN: (纸本)9781467374439

The breathing adjuster is the core component of life support system of an aircraft and it is very important to control the valve to make the breathing adjuster supply the pilot the mixed air with the suitable oxygen concentration. In this paper the mathematical model, which describes the relation between the opening degree of the valve of the breathing adjuster and the flight altitude of the aircraft, is set up through analyzing requirement of aviation physiology and working principles of the breathing adjuster. Then a fuzzy controller is designed to control the opening degree of the valve in order to make the breathing adjuster supply to the pilot the mixed air with suitable oxygen concentration. Finally MATLAB Simulink is employed to verify the feasibility and validity of the fuzzy controlling approach. The results of simulating experiments show that the fuzzy control approach proposed in this paper can make the breathing adjuster supply the mixed air with suitable oxygen concentration to the pilot boarded on an aircraft.

关键词： Breathing adjuster,Oxygen concentration,the opening degree of the valve,Fuzzy control,Simulation

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Development of meal assistance device for patients with spinal cord injury

Development of meal assistance device for patients with spin...

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International Workshop on Advanced Motion Control (AMC)

作者： Takahiro Nozaki Toshiyuki Murakami Tomoyuki Shimono Kouhei Ohnishi Roberto Oboe Dept. of System Design Engineering Keio University Yokohama Kanagawa Japan Division of Electrical and Computer Engineering Yokohama National University Yokohama JAPAN Dept. of Management and Engineering University of Padova Vicenza Italy Fondazione Ospedale San Camillo - I.R.C.C.S. Keio University Lido di Venezia Italy

The objective of this research is to develop a meal assistance device for patients, who lost the ability to move their own body except for the head and the neck due to disease, accidents, congenital factors, and aging. Main problems of existing conventional devices are “cost”, “size”, “complexity”, “appearance”, and “feeling of alive”. This paper tackles the above problems and explains structure of the developed device for meal assistance. The newly developed meal assistance device was made by 3D printers for cheap price and customizable. The developed assistance device has two degrees of freedom; translational motion for stab and rotational motion for bringing. In addition, the developed meal assistance device adopted a strategy of polar coordinate-based manual operation, which allows users to operate intuitively. The appearance of the developed device is not heavy compared with the conventional devices shaped like industrial robotic manipulators. Above mentioned features are important and gives competitive power especially in the medical care field requiring adaptation to individual demand. The developed meal assistance device succeeded to serve a meal toward the user's mouth in an experimental verification of a practical use.

关键词： Robot kinematics Mouth Complexity theory Brakes Three-dimensional displays Printers

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How can a service-oriented router merge with a CDN?

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and systems 2016年第8期136卷 1172-1179页

作者： Wijekoon, Janaka L. Harahap, Erwin Tennekoon, Rajitha Nishi, Hiroaki Hiroaki Nishi Laboratory Graduate School of Computer Science Faculty of Science and Technology Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama223-8522 Japan Department of System Design Engineering Faculty of Science and Technology Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama223-8522 Japan

A large fraction of the Internet traffic is organized by the Content Delivery Networks (CDNs). CDNs redirect endusers to an appropriate server using Domain Name Servers (DNSs). Meanwhile, in future networks, it is anticipated that network routers will be equipped with more processing power and storage modules for providing most effective end-user services. From this viewpoint, a Service-oriented Router (SoR) is introduced to accelerate content-based services. This paper presents a novel method, DNS and SoR Collaborative Redirection (DSCR), to accelerate the end-user redirection. DSCR uses SoRs to collect and store network and server state information by placing SoRs at edges of the ISP network. The collected information is then used by the DSCR to leverage the DNS-based end-user redirection. We present the design and a prototype implementation of DSCR and, show how both SoR and DNS jointly can take advantage of existing Internet architecture to accelerate end-user redirection. We used a detailed simulation to evaluate the proposed method using various strategies. Simulations clearly demonstrate the effectiveness of the collaborative method, which yields 5-10% reduction in end-user latency when compared with DNS-based redirection. © 2016 The Institute of Electrical Engineers of Japan.

关键词： Routers

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An intelligent decision supporting system for international classification of functioning, disability, and health

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Visualization in engineering 2015年第1期3卷 1-17页

作者： Hsieh, Wei-Fen Chen, Lieu-Hen Hung, Hao-Ming Sato-Shimokawara, Eri Takama, Yasufumi Yamaguchi, Toru Wu, Eric Hsiao-Kuang Chen, Yu-Wei Computer Science and Information Engineering National Chi Nan University Puli Taiwan Faculty of System Design Tokyo Metropolitan University Hino Tokyo Japan Computer Science and information Engineering National Central University Taoyuan Taiwan Department of Internal Medicine Landseed Hospital Taoyuan Taiwan

Background: In recent years, the population structure in Taiwan has changed so dramatically. Based on concerns of social welfare issues, Taiwanese government began to seek principles for assessment of disability. After seven years of carefully evaluation, the World Health Organization’s International Classification of Functioning, Disability, and Health (Abbreviated to ICF) is officially adopted as Taiwan’s assessment standard while most of the assessment procedures of ICF are sophisticated, and time consuming. In this paper, we propose a sensor based decision supporting system for ICF. Our prototype system aims to reduce the burden of medical staffs, and to assist subjects to perform the assessments. Methods: This paper integrate multiple devices including ASUS XtionTM, temperature/acceleration/gyro sensors on Arduino, and Zigbee to measure the mobility of limbs and joints. The subject’s log of assessments is then recorded in the database so that the medical staffs can remote-monitor the co ndition of subjects immediately, and analyze the results later. Additionally, in our system, a user-friendly interface is implemented for the detection of dementia. Results: In this paper, three experiments have been conducted for different purpose. The experiment was conducted to compare the variation between thermometer and our device. Moreover, we invited 20 elders aged for 65 to 80 to use our system and all of them gave positive feedback. Two elders were invited to perform full assessment for dementia and the results show that both of them didn’t have sign of dementia. Also, the assessment of joint movement was performed by a 67 year-old elder and the result shows that the elder had well physical function and could take care of daily life. Conclusions: The proposed system has potential for aiding users to perform the ICF testing better and provide benefits to medical staffs and society. With current technology, integration between sensor network systems and artificial intell

关键词： Arduino ICF Sensoring techologies Social welfare Xtion Pro Live™

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