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Chinese control Conference (CCC)

作者： Suming Xu Yonghong Tan Ruili Dong Research Center of Precision Mechatronics Systems and Control Engineering Shanghai Normal University 200234 China

Ionic Polymer-Metal Composite (IPMC) is a new smart material which has sensing capability. In this paper, an experimental setup to characterize IPMC sensor is developed and corresponding sensor model is constructed based on neural networks. Similar to the other smart materials, intrinsic hysteresis nonlinearity is inherent in IPMC sensors. In this case, a hysteresis operator is introduced to transform the multi-valued mapping of hysteresis to a one-to-one mapping. Then, the corresponding neural model can be constructed by the neural network on the expanded input space. In order to compensate the nonlinearity of IPMC sensor, an inverse model is also constructed to form a feedforward compensator for the sensor. Finally, experimental results are presented to validate the proposed method of hysteresis compensation.

关键词： Polymers Hysteresis Intelligent sensors Sensor phenomena and characterization Neural networks Voltage measurement

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Design and Analysis of One Kind of Preliminary Storage Centrifugal Action Mechanism Applied to Submunition Fuze

Design and Analysis of One Kind of Preliminary Storage Centr...

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2013 3rd International Conference on Advanced Measurement and Test(AMT 2013)

作者： Shenggang Xu Yanxuan Wu Ningjun Fan Dongqing Cheng Dongze Qin Key Laboratory of National Defense Science and Technology for Mechatronics Engineering and Control Beijing Institute of Technology

According to the requirement of the *** the rate and function of dud,this paper proposes a project to improve mechanical structure of original submunition combing with the development status of submunition in *** the characteristics of submunition fuze's structure and working environment,one kind of preliminary storage centrifugal action mechanism is designed in the *** principle and process of action are also *** paper makes calculation of reliability and does dynamic simulation by stages according to working process of *** and simulation results demonstrate that preliminary storage centrifugal action mechanism can be reliable and achieves the aim of design.

关键词： submunition fuze centrifugal action mechanism

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A Neuro-inspired Adaptive Motion Detector

A Neuro-inspired Adaptive Motion Detector

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The International Symposium on Photonics and Optoelectronics(SOPO 2013)

作者： Xiaopin Zhong Lin Ma College of Mechatronics and Control Engineering Shenzhen University Shaanxi international trust co. ltd.

In this paper, a novel motion detector is proposed to perceive the weak changes in a image sequence. This is inspired by the mechanism of fixational eye movement and dynamics of vertebrate's cortex. We realized respectively an artificial model of visual attention selection, called dual-probe adaptive model (DPAM), and an active tremor operation (ATO) approach. It is found that between them there exists a resonance phenomenon. The phenomenon is enhanced when the ATO and the DPAM are in-phase and is suppressed when they are anti-phase. Based on this, we construct a novel motion detector combined by the ATO and the DPAM to resonate with the motion direction. This allows capturing moving edges even in the image sequences with lighting change and noisy background. Simulation and Experimental results demonstrate the effectiveness.

关键词： Neuro-inspired Motion Detector Dual-probe Adaptive Model Active Tremor Operation

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On the Linear Active Rejection control of Thomson's Jumping Ring

On the Linear Active Rejection Control of Thomson's Jumping ...

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American control Conference

作者： M. Ramirez-Neria J. L. Garcia-Antonio H. Sira-Ramirez M. Velasco-Villa R. Castro-Linares Automatic Control Dept. Cinvestav-IPN Mechatronics Section of the Electrical Engineering Department of Cinvestav-IPN

ISBN: (纸本)9781479901777

The problem of tracking a smooth time-varying reference trajectory for Thomson's ring is addressed from the perspective of Active Disturbance Rejection control (ADRC). The tracking controller is designed on the basis of the tangent linearization model of the nonlinear system around a constant equilibrium point. The large height deviations, outside the region of validity of the approximate linearization, trigger the effect of unknown nonlinearities and exogenous perturbations. These disturbances are properly on-line estimated and canceled with the help of a linear extended observer-linear controller based output feedback control scheme. Experimental results are presented which validate the effectiveness of the proposed control scheme.

关键词： Output Feedback control Nonlinear systems Linearization Ring device rings Jumping Annulus Perspective tracking controller Rejection (Psychology)

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Results on Frequency Weighted Model Reduction Techniques of Activated Sludge Process

Results on Frequency Weighted Model Reduction Techniques of ...

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International Conference on Computer Modeling and Simulation, UKSIM

作者： Shafishuhaza Sahlan Norhaliza Abdul Wahab Intan Zaurah Mat Darus Control and Mechatronics Engineering Department Faculty of Electrical Engineering Universiti Teknologi Malaysia Johor Malaysia Department of Dynamic Systems and Control FaculFaculty of Mechanical Engineering Universiti Teknologi Malaysia Johor Malaysia

ISBN: (纸本)9781467364211

In this paper, a 90th order activated sludge process system is explored. From the original high order system, a disturbance between 1rad/s to 10rad/s are observed, hence frequency weighted model reduction techniques (FWMRT) are applied with a low pass filter of break frequency 0.5rad/s. Three well-known techniques are utilized and compared to the original system on a sigma plot. The reduction techniques are Enn's, Wang et al's and Lin and Chiu's. Results show that the fourth order reduction yields good results whereby all techniques follow the original well, i.e. the characteristics performance of the original system is retained. Although Wang et al follow the original system very closely, Enn's technique is able to smooth out the disturbance and give good error approximation.

关键词： Reduced order systems Sludge treatment Mathematical model Equations Frequency control Biology Wastewater treatment

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A Neuro-inspired Adaptive Motion Detector

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Optics and Photonics Journal 2013年第2期3卷 94-98页

作者： Xiaopin Zhong Lin Ma College of Mechatronics and Control Engineering Shenzhen University Shenzhen China Shaanxi international trust co. ltd. Xian’an China

In this paper, a novel motion detector is proposed to perceive the weak changes in a image sequence. This is inspired by the mechanism of fixational eye movement and dynamics of vertebrate’s cortex. We realized respectively an artificial model of visual attention selection, called dual-probe adaptive model (DPAM), and an active tremor operation (ATO) approach. It is found that between them there exists a resonance phenomenon. The phenomenon is enhanced when the ATO and the DPAM are in-phase and is suppressed when they are anti-phase.?Based on this, we construct a novel motion detector combined by the ATO and the DPAM to resonate with the motion direction. This allows capturing moving edges even in the image sequences with lighting change and noisy background. Simulation and Experimental results demonstrate the effectiveness.

关键词： Neuro-inspired Motion Detector Dual-probe Adaptive Model Active Tremor Operation

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control of intelligent cane robot considering usage of ordinary cane

Control of intelligent cane robot considering usage of ordin...

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22nd IEEE International Symposium on Robot and Human Interactive Communication: "Living Together, Enjoying Together, and Working Together with Robots!", IEEE RO-MAN 2013

作者： Nakagawa, Shotaro Pei, D. Huang, Jian Sekiyama, Kosuke Fukuda, Toshio Department of Mechanical and Aerospace Engineering Nagoya University 464-0814 Aichi Nagoya Japan Department of Micro-Nano Systems Engineering Nagoya University 464-0814 Aichi Nagoya Japan Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China Department of Mechatronics Engineering Meijo University 468-8503 Aichi Nagoya Japan

ISBN: (纸本)9781479905072

Intelligent cane is a robot developed for assisting the elderly or handicapped people in walking. As a nursing-care device, the cane robot is designed to assist the elderly or handicapped people not only in indoor environments but also in outdoor environments. Therefore the cane robot is required to be smaller and lighter. In addition, it is preferred that the cane robot is movable in omni-directions so that it can be used in various situations. A concept called 'intentional direction (ITD)' was proposed to estimate the user's walking intention by analyzing signals from a 6-axis force/torque sensor fixed to the handle of the aluminum stick. Admittance control method was applied to the motion control of the cane robot. In this paper, a new algorithm based on the usage and purpose of an ordinary cane is proposed. In the proposed algorithm, the cane robot is appropriately stopped to support the elderly more effectively. The effectiveness of the proposed method is verified through the experiments. © 2013 IEEE.

关键词： Intelligent robots

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Closed-loop control with Optimal Tire-force Distribution for the Horizontal Dynamics of an Electric Vehicle with Single-wheel Chassis Actuators

Closed-loop Control with Optimal Tire-force Distribution for...

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American control Conference

作者： Peter Reinold Ansgar Traechtler Chair of Control Engineering and Mechatronics Heinz Nixdorf Institute University of Paderborn Fuerstenallee 11 33102 Paderborn Germany

ISBN: (纸本)9781479901777

This paper presents the control strategy and structure for the integrated vehicle-dynamics control of a test vehicle with single-wheel chassis actuators. It uses the degrees of freedom resulting from the over-actuation of the vehicle for an optimization of the tire force distribution. Different objectives are taken into account. The system consisting of optimization, local controllers, and the vehicle itself is considered in total as a nonlinear control plant and linearizised with exact linearization techniques. The resulting linear system is controlled in the 2-degree-of-freedom structure. The test vehicle, the controller, as well as simulation results are presented in this paper.

关键词： Single-wheel Chassis Actuators over-actuation vehicle

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Stability and Hopf Bifurcation Analysis on a Numerical Discretization of the Distributed Delay Equation

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Chinese Physics Letters 2012年第5期29卷 7-10页

作者： WU Jie ZHAN Xi-Sheng ZHANG Xian-He GAO Hong-Liang College of Mechatronics and Control Engineering Hubei Normal UniversityHuangshi 435002

A kind of discrete logistic model with distributed delays obtained by the Euler method is investigated,where the discrete delay Τ is regarded as a *** analyzing the associated characteristic equation,it is found that the stability of the positive equilibrium and Hopf occurs when Τ crosses some critical *** the explicit formulae which determine the stability,direction and other properties of the bifurcating periodic solution are derived by using the theory of normal form and center ***,numerical simulations are performed to verify and illustrate the analytical results.

关键词： parameter. value. Hopf

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Vibration tests of the processing shaft cascading structure in high speed and high precision PCB drilling machine

Vibration tests of the processing shaft cascading structure ...

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2nd International Conference on Computer-Aided Design, Manufacturing, Modeling and Simulation, CDMMS 2012

作者： Gong, Feng Tan, Yanping Li, Jibin Key Laboratory of Advanced Manufacturing Technology for Mold and Die Shenzhen University Shenzhen 518060 China CAE Department Hans CNC Technology Co. Ltd Shenzhen 518057 China College of Mechatronics and Control Engineering Shenzhen University Shenzhen 518060 China

ISBN: (纸本)9783037855409

It is necessary to study the dynamic characteristics of the structure of processing shaft cascade in high speed and high precision PCB drilling machine because of its great impact on the drilling precision. As a basic part, the dynamic characteristics of the structure of cascade depend on the dynamic characteristics of the Z-axis floor. Based on it, firstly, the free mode test is conducted on the Z-axis floor, the same as the modes that it is just set up on the guide rail, the cascade is added and the motor spindle has been added on the Z-axis floor. From the four situations, the modal pa- rameters are gained in the tests. Then the ODS test is carried out and the vibration is analyzed in the real situation. The vibration tests of the cascade comprehensively acquire dynamic characteristics from the Z-axis floor before being assembled to the Z-axis floor which is entirely cascaded on the Z axis. Acknowledge of the impact that the vibrations bring to the drilling precision of the drilling machine provides the direction of improving the structure. © (2013) Trans Tech Publications, Switzerland.

关键词： Floors

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