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Digital Society and intelligent Systems (DSInS), International Conference on

作者： Qin Zhang Jinlong Pan Hu Chen Yixiong Feng Zhaoxi Hong Key Laboratory of Robot System Integration and Intelligent Equipment of Huzhou Huzhou Vocatinal & Technical College Huzhou P. R. China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou P. R. China Shanghai Space Propulsion Technology Research Institute Shanghai P. R. China Shanghai Institute of Special Equipment Inspection and Technical Research Shanghai P. R. China Key Laboratory of Advanced Manufacturing Technology of Zhejiang Province Zhejiang University Hangzhou P. R. China

ISBN: (纸本)9781665406314

Affected by uncertain factors such as customer demand, product design process will face with varying degrees of upgrade risk. In order to response to change requirements and reduce the impact of component changes, change path optimization for complex products considering upgrade risk is proposed. The goal of this work is to optimize change paths with multi-objective programming. The optimization model is constructed with the goal of minimizing the change complexity, the minimizing change propagation intensity and minimizing the change time. The improved whale algorithm is proposed to solve the model. A set of non-dominated solutions is obtained which can guide decision makers to choose the appropriate scheme. Finally, a product change path optimization for an elevator is given to verify the effectiveness of the proposed method.

关键词： Whales Pareto optimization Product design Elevators Mechanical products Complexity theory intelligent systems

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Robust Frequency-Domain Recursive Least M-Estimate Adaptive Filter For Acoustic System Identification

Robust Frequency-Domain Recursive Least M-Estimate Adaptive ...

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International Conference on Acoustics, Speech, and Signal Processing (ICASSP)

作者： Hongsen He Jingdong Chen Jacob Benesty Yi Yu School of Information Engineering and Robot Technology Used for Special Environment Key Laboratory of Sichuan Province Southwest University of Science and Technology Mianyang China Center of Immersive and Intelligent Acoustics Northwestern Polytechnical University Xi'an China INRS-EMT University of Quebec Montreal QC Canada

ISBN: (数字)9781509066315

ISBN: (纸本)9781509066322

To identify acoustic systems in non-Gaussian and Gaussian noises, a robust frequency-domain recursive least M-estimate (FRLM) adaptive filtering algorithm is proposed. The cost function of the adaptive filter is defined by using a robust time-domain M-estimator, while its update equation is derived from the normal equation in the frequency domain. As compared to the frequency-domain recursive least-squares adaptive filter, the FRLM algorithm obtains the robustness to non-Gaussian and Gaussian noises. The performance of the proposed algorithm is validated in simulated acoustic environments.

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LED Visible Light Localization Based on Illuminance Analysis

LED Visible Light Localization Based on Illuminance Analysis

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IEEE International Conference on Real-time Computing and robotics (RCAR)

作者： Chenting Gu Xiaofeng Liu Yongsheng Ou Chao Liu Hao Tao Tianyun Shi HoHai University Nanjing China Chinese Academy of Sciences Shenzhen Institutes of Advanced Technology Shenzhen China Key Laboratory of Special Robots Changzhou China Changzhou Key Laboratory of Robots and Intelligent Technology Changzhou China College of IoT Engineering Hohai University Changzhou China Key Laboratory of Human-Machine-Intelligence Synergic Systems Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China Guangdong Provincial Key Laboratory of Robotics and Intelligent System Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen China China Ship Development and Design Center Wuhan Tian-yun Shi China Academy of Railway Sciences Corporation Limited Beijing China

ISBN: (数字)9781728172934

ISBN: (纸本)9781728172941

LED based positioning technology has recently become a popular choice due to the low cost, convenience for maintenance and strong adaptability to the environment. In this paper, we introduce an illuminance-distance analysis method with a rolling shutter camera, for a low-cost indoor positioning system to improve robustness in the case of insufficient LEDs. Firstly, the binary threshold method is used to decode the light signals. Then the gray value information of image is extracted to analyze the depth of LEDs, using the illuminance attenuation theorem. It provides potential solution to the position of devices with the camera by combining depth information, image and camera intrinsic. Our proposed method reduced the minimum number of LEDs observed by the camera from three to two, using only the camera. We evaluated the proposed method with real scene data and demonstrated the effectiveness of illumination-distance model based localization.

关键词： Light emitting diodes Cameras Receivers Light sources robots Mathematical model Image sensors

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Obstacle induced stochastic tree for fast path planning

Obstacle induced stochastic tree for fast path planning

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2019 IEEE International Conference on Real-Time Computing and robotics, RCAR 2019

作者： Liu, Xiaofeng Li, Jinming Hu, Fang Yang, Chenguang College of IoT Engineering Hohai University Changzhou213022 China Changzhou Key Laboratory of Robotics and Intelligent Technology Changzhou213022 China Jiangsu Key Laboratory of Special Robots Changzhou213022 China School of Electromechanical and Automobile Engineerng Changzhou Vacational Institue of Engineering Changzhou213164 China Bristol Robotics Laboratory University of the West of England BristolBS16 1QY United Kingdom

ISBN: (纸本)9781728137261

Rapidly-Exploring Random Tree (RRT) has been extensively applied to robot navigation field as a fast and effective path planning method. Rapidly-Exploring Random Tree Star (RRT*), one of the extensions of RRT, outperforms other methods because it can approach the optimal path with the number of iterations increases. Nonetheless, as the number of sampling points increases, it takes too long to get an optimal path and the convergence speed slows dramatically for RRT and all its variants, since the range of sampling is the entire configuration space. In this paper, we propose a novel method of robot path planning in the global knowledge scenario: obstacle induced stochastic tree algorithm. This algorithm regards the center point in obstacles as the sampling point, which significantly reduces the sampling range then shorts the time for path planning. Simulation results demonstrate that our algorithm can find a feasible path at a rapid rate. Compared with RRT and its variants algorithms, the algorithm has better performance in both time and path cost. © 2018 IEEE

关键词： Motion planning

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Multiple configurations for puncturing robot positioning

arXiv

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arXiv 2019年

作者： Abdelaziz, Omar Luo, Minzhou Jiang, Guanwu Chen, Saixuan University of Science and Technology of China Hefei230026 China Key Laboratory of special robot technology of Jiangsu Province Hohai University Changzhou213000 China Institute of Intelligent Manufacturing Technology Jiangsu Industrial Technology Research Institute Nanjing211800 China Egyptian Russian University Egypt

The paper presents the Inverse Kinematics (IK) close form derivation steps using combination of analytical and geometric techniques for the UR robot. The innovative application of this work is used in the precise positioning of puncture robotics system. The end effector is a puncture needle guide tube, which needs precise positioning over the puncture insertion point. The IK closed form solutions bring out maximum 8 solutions represents 8 different robot joints configurations. These multiple solutions are helpful in the puncture robotics system, it allow doctors to choose the most suitable configuration during the operation. Therefore the workspace becomes more adequate for the coexistence of human and robot. Moreover IK closed form solutions are more precise in positioning for medical puncture surgery compared to other numerical methods. We include a performance evaluation for both of the IK obtained by the closed form solution and by a numerical method. Copyright © 2019, The Authors. All rights reserved.

关键词： Inverse kinematics

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Mechanical System Design and Simulation Research of a Demonstration Assembly Line

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IOP Conference Series: Materials Science and Engineering 2020年第1期784卷

作者： MA Ke Chen Yu Sun Yi College of Mechanical and Electrical Engineering Hohai University Changzhou 213022 Jiangsu Key Laboratory of Special Robot Technology Changzhou 213022

Most assembly lines use a bottom-up mechanical system design approach. In view of the problems of poor system interchangeability and low product versatility, a battery assembly line was designed based on the modular design method. The linear modules, cylinders and linear guides were used as the basic elements to build the production line modules. Different assembly requirements have improved the performance of the entire production line. The discrete-event system simulation method is used to simulate the quasi-running process of the production line, analyze the bottleneck of the production line, and improve the production efficiency of each module of the production line by changing the optimization method of the loading link and the production sequencing.

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Research on 3 dimensional reconstruction of CT images based on improved filtering algorithm 9

Research on 3 dimensional reconstruction of CT images based ...

引用

9th IEEE International Conference on Mechanical and intelligent Manufacturing Technologies, ICMIMT 2018

作者： Jiang, Guanwu Luo, Minzhou Chen, Saixuan Bai, Keqiang Department of Automation University of Science and Technology of China Hefei China Key Laboratory of Special Robot Technology of Jiangsu Province Hohai University Changzhou China School of Information Engineering Southwest University of Science and Technology Mianyang China Institute of Intelligent Manufacturing Technology Jiangsu Industrial Technology Research Institute Nanjing China

ISBN: (纸本)9781538642979

The 3D reconstruction of medical images is a hot spot in medical research. It is a comprehensive application of computer graphics, image processing, computer vision and human-computer interaction. Firstly, in this paper used an improved adaptive weighted median filter algorithm for CT image processing, greatly reduces the amount of data processing, and improve the process effect of the speckle noise and environmental noise. Then the automatic threshold segmentation algorithm and the improved iterative algorithm are used to realize the multi threshold image segmentation. Finally used the marching cubes algorithm and equivalent plane method three dimensional reconstruction of CT image. In this paper through VTK (Visualization Toolkit) and VC++ software to achieve the CT images three-dimensional reconstruction and greatly improve the accuracy and accuracy of medical diagnosis. © 2018 IEEE.

关键词： Diagnosis

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Design and Preparation of Novel Anti-adhesion Extra Thin Polyvinyl Alcohol Foam Dressings for NPWT via a Combined Procedure of Ultra Precision Machining and Super Clean Air-foaming

Design and Preparation of Novel Anti-adhesion Extra Thin Pol...

引用

International Conference on Electronical, Mechanical and Materials Engineering

作者： Ching-Cheng Huang Meng-Jen Yang Zhiguo Zhang Ing-Lin Chang PARSD Biomedical Material Research Center Department of Biomedical Engineering Ming Chuan University Institute of Medical Device Jiangsu University of Technology Jiangsu Key Laboratory of Special Robot Technology College of Mechanical and Electrical Engineering Hohai University Department of Orthopaedics Changhua Christian Hospital

ISBN: (纸本)9781510882584

Negative pressure wound therapy(NPWT) utilizes foam dressings to create an optimal healing environment. The anti-adhesion material was important for the clinic application of NPWT treatment. Polyvinyl alcohol(PVA) foam dressing could be considered as a good anti-adhesion material for NPWT treatment. An anti-adhesion extra thin foam dressing with good mechanical property would be a potential medical device for NPWT treatment. A series of anti-adhesion polyvinyl alcohol(PVA) extra thin foam dressings with different macroporosities and thickness of 1.5 mm were designed and prepared. Mechanical property of the resulting extra thin foam dressings was determined. Preclinical evaluation of new designed antiadhesion extra thin PVA foam dressings could be established by determining water morphology, water permeability, macroporosity, mechanical property of resulting samples.

关键词： PVA foam matrix

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Sparsity-aware SSAF algorithm with individual weighting factors for acoustic echo cancellation

arXiv

引用

arXiv 2020年

作者： Yu, Yi Yang, Tao Chen, Hongyang de Lamare, Rodrigo C. Li, Yingsong School of Information Engineering Robot Technology Used for Special Environment Key Laboratory of Sichuan Province Southwest University of Science and Technology Mianyang621010 China Research Center for Intelligent Networking Zhejiang Lab Hangzhou311121 China CETUC PUC-Rio Rio de Janeiro22451-900 Brazil Department of Electronic Engineering University of York YorkYO10 5DD United Kingdom School of Information and Communication Engineering Harbin Engineering University Harbin150001 China

In this paper, we propose and analyze the sparsity-aware sign subband adaptive filtering with individual weighting factors (S-IWF-SSAF) algorithm, and consider its application in acoustic echo cancellation (AEC). Furthermore, we design a joint optimization scheme of the step-size and the sparsity penalty parameter to enhance the S-IWF-SSAF performance in terms of convergence rate and steady-state error. A theoretical analysis shows that the S-IWF-SSAF algorithm outperforms the previous sign subband adaptive filtering with individual weighting factors (IWF-SSAF) algorithm in sparse scenarios. In particular, compared with the existing analysis on the IWF-SSAF algorithm, the proposed analysis does not require the assumptions of large number of subbands, long adaptive filter, and paraunitary analysis filter bank, and matches well the simulated results. Simulations in both system identification and AEC situations have demonstrated our theoretical analysis and the effectiveness of the proposed algorithms. Copyright © 2020, The Authors. All rights reserved.

关键词： Impulse noise

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Erratum: Effect of doping polyethylene oxide on the properties of Nafion-IPMC actuators

引用

Functional Materials Letters 2022年第6期15卷

作者： Jie Ru Dongxu Zhao Tong Wang Yanjie Wang Longfei Chang Key Laboratory of Green and Precise Synthetic Chemistry and Applications Ministry of Education School of Chemistry and Materials Science Huaibei Normal University Huaibei 235000 P. R. China https://***/0000-0002-3242-572X College of Mechanical and Electrical Engineering Inner Mongolia Agricultural University Hohhot 010018 P. R. China College of Mechanical and Electrical Engineering Zhengzhou University of Light Industry Zhengzhou 450002 P. R. China Jiangsu Key Laboratory of Special Robot Technology Hohai University-Changzhou Changzhou 213022 P. R. China Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment Hefei University of Technology Hefei 230009 P. R. China

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