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47.5: A new optical concept for high duty vertical alignment liquid crystal displays

SId Symposium digest of Technical Papers 2019年第S1期50卷

作者： Zirong Wu Congxin Chen Zuzheng Zhao Optoelectronics and Intelligent Control R&D Center of Tsinghua University in Shenzhen and Shenzhen AV-display Co. Ltd. Shenzhen China

Passive matrix driven vertical alignment liquid crystal displays (PMVA-LCd) become more and more popular in many applications like industry, automotive, e-metering, medical, sports, smart home etc. regarding its high contrast and wide view angle. However, the current solution of vertical alignment liquid crystal display has a shortcoming on the steepness of the transmissive-voltage curve (T-V curve) of the displays, which limits the driving duty of displays. We developped a new optical concept to achieve high duty, up to 1/128, PMVA-LCd displays by optical-electro simulations and experiments.

关键词： Vertical alignment LCd high duty passive matrix driven optical concept

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Human-Computer Interaction Using Fingertip Based on Kinect

Human-Computer Interaction Using Fingertip Based on Kinect

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IEEE Information Technology and mechatronics Engineering Conference (ITOEC)

作者： Yanbo Tao Zhiwen Yao Bin Liang R&D center of Intelligent Control and Advanced Manufacturing Research Institute of Tsinghua Univeristy in Shenzhen School of Automation China University of Geosciences (Wuhan) Department of Autonmation Tsinghua University

ISBN: (纸本)9781538653746

controlling the computer through the hand and eye is a new type human-computer interaction, which overcomes the problem of insufficient flexibility in controlling the traditional computer through the mouse and keyboard. This kind of human-computer interaction is more natural and is an inevitable trend of human-computer interaction in the future. The Kinect based hand-eye positioning system is capable of quickly locating the hand-eye position through depth images and color images, and has a strong real-time performance. Kinect based gesture recognition is widely used in human-computer interaction systems, and the Xbox system developed by Microsoft is the most representative. However, these gesture recognition systems do not pay attention to the problem of finger positioning. From finger positioning point of view, this paper solves the precise position of the finger on the screen by homogeneous coordinate transformation, and realizes a complete set of human-computer interaction system based on hand-eye positioning with simple gesture recognition.

关键词： Cameras Face Human computer interaction Gesture recognition Touch sensitive screens Visualization Three-dimensional displays

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A proposal for teaching SCAdA systems using Virtual Industrial Plants in Engineering Education

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IFAC-PapersOnLine 2016年第6期49卷 138-143页

作者： rodríguez, F. Guzmán, J.L. Castilla, M. Sánchez-Molina, J.A. Berenguel, M. Informatics Department Automatic Control Robotics and Mechatronics research group University of Almería Agrifood Campus of International Excellence ceiA3 CIESOL R&D Center Spain

The main objectives of SCAdA (Supervisory control And data Acquisition) systems are the supervisory analysis of the system, control algorithms validation, and data acquisition. These systems are normally implemented according to the international standards: UNE-EN ISO 9241, ISAIOI-Human-Machine Interfaces, ISA S5, and in the case treated in this paper The Spanish royal decree 488/1997. This paper presents a software architecture for the development of educational laboratories, through industrial virtual plants which models and logic are implemented in Matlab® and used within LabVIEW® through an appropriate protocol. Lab VIEW® from National Instruments, a specific purpose software for this kind of applications, was used, since it allows us to provide a friendly interface, to perform communications, data acquisition and the information management. In addition, to illustrate the use of the proposed architecture, different virtual industrial plants for students of different Bachelor and Master degrees in engineering at the University of Almeria have been developed. This paper shows the different virtual industrial plants that have been developed using SCAdA systems to facilitate students’ learning of basic concepts and techniques for an Industrial Informatics course. © 2016

关键词： Industrial plants Application programs Computer programming languages E learning Education computing Information management MATLAB Network architecture SCAdA systems Students Teaching Virtual reality Educational laboratory Human Machine Interface International standards Problem based learning remote laboratories Supervisory control Supervisory control and data acquisition Virtual

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design of High Efficiency Line Start Permanent Magnet motor for Submersible Pumps

Design of High Efficiency Line Start Permanent Magnet motor ...

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IEEE International Conference on Environment and Electrical Engineering

作者： Jeong-Jong Lee Se-Hyun rhyu In-Soung Jung Young-Woon Kim Intelligent Mechatronics Research Center Korea Electronics Technology Institute Gyeonggi-do Korea Head of R&D Department Han Jin Pump Gyeonggi-do Korea

ISBN: (纸本)9781509023219

This paper deals with the development of 3-phase line-start permanent magnet motor used to the submersible pumps. LSPM motor has similar characteristics such as the synchronous machine in the continuous mode. Also, LSPM motor is not required the specific drive hardware. LSPM motor can be applied instead of the induction motor and it can achieve a high-efficiency characteristic. In this paper, we discussed the design and analysis for llkW LSPM motor. And, a formula was developed for the maximum torque calculation method in LSPM.

关键词： Line start permanent magent equivalent circuit analysis characteristic analsysis synchronous motor

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A high-order disturbance observer based sliding mode velocity control of mobile wheeled inverted pendulum systems

A high-order disturbance observer based sliding mode velocit...

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World Congress on intelligent control and Automation (WCICA)

作者： Songhyok ri Jian Huang Chunjing Tao Myonghyok ri Yongsok ri daeho Han School of Automation Huazhong University of Science and Technology Wuhan CHINA Department of Control Science University of Sciences Pyongyang D.P.R. of Korea Key Laboratory of Ministry of Education for Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan CHINA R&D department National Research Center for Rehabilitation Technical Aids Beijing Automation school Kim Chaek University of Technology Pyongyang D.P.R. of Korea Department of Phisics University of Sciences Pyongyang D.P.R. of Korea

ISBN: (纸本)9781467384155

In this paper, a novel disturbance observer (dO) for the Mobile Wheeled Inverted Pendulum (MWIP) system is proposed. A choice method of optimal gain matrices is also proposed for a given robust gain, which can improve the estimation precision of the dO. Combining the proposed dO and Sliding Mode control (SMC), a new sliding mode velocity control method is designed for the MWIP system. The convergency of the dO is proved by Lyapunov theorem. And the stability of the closed-loop system is achieved through the appropriate selection of sliding surface coefficients. The effectiveness of all proposed methods is verified by simulation results for the MWIP system.

关键词： Wheels Automation Velocity control Uncertainty Observers robustness

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An Improved Artificial Potential Field-based SImultaneous FOrward Search (Improved APF-based SIFOrS) method for robot path planning

An Improved Artificial Potential Field-based SImultaneous FO...

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International Conference on Ubiquitous robots and Ambient Intelligence (UrAI)

作者： Guanghui Li Shuiguang Tong Gang Lv renyuan Xiao Feiyun Cong Zheming Tong Atsushi Yamashita Hajime Asama R&D Center of Mechatronics and Intelligent Control Zigong Innovation Center of Zhejiang University Zigong P. R. China School of Mechanical Engineering Zhejiang University Hangzhou P. R. China Department of Precision Engineering The University of Tokyo Tokyo Japan

An effective Improved Artificial Potential Field-based SImultaneous FOrward Search (Improved APF-based SIFOrS) method was developed in known environment, which was very similar with the path relaxation method. We firstly redefined potential functions to calculate a valid path, then proposed a SImultaneous FOrward Search method (SIFOrS method) to shorten the distance of planned path. Such path was calculated by connecting the sequential points produced by Improved APF method. And we mainly focused on discussing the Bidirectional Improved APF-based SIFOrS method in this paper. The simulation results confirmed that our proposed path planning approach could calculate a shorter, collision-free, no oscillations and safe path to a destination than general Improved APF methods can, and consumed few computational times.

关键词： Force Path planning robot kinematics Algorithm design and analysis Collision avoidance relaxation methods

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Hybrid dynamical moving task allocation methodology for distributed multi-robot coordination system

Hybrid dynamical moving task allocation methodology for dist...

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IEEE International Conference on mechatronics and Automation

作者： Guanghui Li Shuiguang Tong Yang Li Feiyun Cong Zheming Tong Atsushi Yamashita Hajime Asama School of Mechanical Engineering Zhejiang University Hangzhou Zhejiang Province P. R. China R&D Center of Mechatronics and Intelligent Control Zigong Innovation Center of Zhejiang University Zigong Sichuan Province P. R. China Department of Precision Engineering The University of Tokyo Bunkyo-ku Tokyo Japan

ISBN: (纸本)9781479970995

dynamical moving task allocation in complex environment for distributed multi-robot coordination system is mainly investigated. We proposed a hybrid dynamical moving task allocation method in this paper, when either robots or tasks update their conditions, robots independently select tasks from a combinatorial cost table as to minimize an objective function. And we use two sample time thresholds for robots to decide the conditions of robots and tasks, and reallocate tasks. To validate our approach, we integrated the proposed dynamical moving task allocation method with our previously developed path planning method and applied it to the distributed multi-robot coordination system problem. Simulation results demonstrated the efficiency and robustness of our proposed task allocation method even under communication failures and robots malfunctions.

关键词： robot kinematics resource management robustness Simulation Linear programming Heuristic algorithms

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development of a control algorithm to improve fuel economy for PHEV considering driver tendency

Development of a control algorithm to improve fuel economy f...

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International Conference on Ecological Vehicles and renewable Energies (EVEr)

作者： Seulgi Lee Jingyu Choi Sunyoung Park Jaemyoung Pi Heejin Shin Hyunsoo Kim Kiyun Jeong School of Mechanical Engineering Sungkyunkwan University Suwon-si Republic of Korea Intelligent Control System R&D center Korea Automotive Technology Institute Cheonan-si Republic of Korea

In this study, an engine on/off and engine operation control algorithm to improve the fuel economy was proposed for a PHEV(plug-in hybrid electric vehicle) considering driver tendency. To identify the driver tendency, a driver model was developed using VIdE (virtual integrated development environment). The target vehicle model was developed based on MATLAB/Simulink and validation of the vehicle model was performed by experiments. Using the VIdE, real drivers who have different tendency drive the PHEV in virtual environment and driving data were accumulated. Using the driving data, the driver model which can reflect the driver tendency was developed. To describe the driver tendency, degree of driver aggression (ddA) was proposed, which was determined by fuzzy logic. The ddA was applied to the PHEV control algorithm to improve the fuel economy. This algorithm controls the engine on/off and engine operation, which provides the improved fuel economy.

关键词： Vehicles Engines MATLAB Batteries Analytical models data models System-on-chip

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design and control of an intelligent walking-aid robot

Design and control of an intelligent walking-aid robot

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International Conference on Modelling, Identification and control (ICMIC)

作者： rui Han Chunjing Tao Jian Huang Yongji Wang Heping Yan Lifang Ma Key Laboratory of Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan China R&D department of National Research Center for Rehabilitation Technical Aids Beijing China

ISBN: (纸本)9781479951055

An intelligent walking-aid robot is presented for walking assistance, training and rehabilitation of the elderly. The robot is intended to provide physical support and mobility aid for the old people during their walking based on recognizing their motion intentions online. A force measuring system comprised of force sensing resisters (FSrs) is designed to obtain the interaction forces between the user and the robot. The user's motion intention is then estimated by analyzing the relationship between the measured interaction forces and human intention force/torque. Further the estimated intention is used to guide the admittance based motion control of robot. To ensure a safe walking, a laser range finder (LrF) is used to detect the distance between the robot and the user's legs. A distance restraint control is also designed and taken into action when the distance is found beyond a safe threshold. Experiments were conducted and the results verified the effectiveness of the developed robot system and control methods.

关键词： Legged locomotion robot sensing systems Force measurement Force Motion measurement Laser modes

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Indoor localization system based on wearable posture sensors with incomplete observations

Indoor localization system based on wearable posture sensors...

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International Conference on Modelling, Identification and control (ICMIC)

作者： Yuan Wang Jian Huang Yongji Wang Chunjing Tao Heping Yan Lifang Ma Key Laboratory of Image Processing and Intelligent Control Huazhong University of Science and Technology Wuhan China R&D department of National Research Center for Rehabilitation Technical Aids Beijing China

ISBN: (纸本)9781479951055

radio Frequency Identification (rFId) based indoor localization becomes a hotspot in the robotic research field recently. To overcome the shortcoming that plentiful tags are required in a normal rFId based localization system, this paper presents an indoor localization method by fusing measurements from wearable posture sensors and the absolute position information from scattered rFId tags. From the posture sensors, we can obtain the relative indoor localization data by summing up the vectors composed of step length and heading direction. Since this relative localization is highly affected by the cumulative error, the absolute positions of rFId tags are used as corrections if they are found within a read-range to the user. Because the rFId tags are sparsely placed in the indoor environment, the corrections can be achieved only at incomplete time instants. Therefore, a revised Kalman filter with incomplete observation is applied to the sensor fusion between the posture sensors and rFId tags. Experimental results show that the cumulative error of the system can be significantly reduced and the localization accuracy is enhanced through the sensor fusion.

关键词： Kalman filters Sensor systems Vectors rFId tags Magnetic sensors

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