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

作者： Yanzi Miao Yue Wang Jianwei Zhang School of Information and Control Engineering China University of Mining and Technology Advanced Robotics Research Center of the Artificial Intelligence Institute CUMT Xuzhou China School of Information and Control Engineering China University of Mining and Technology Xuzhou China Institute of Technical Aspects of Multimodal Systems University of Hamburg Germany

ISBN: (数字)9781728172934

ISBN: (纸本)9781728172941

It has great importance to locate the leaked source of hazardous odor in a ventilated indoor environment, for chemical warehouse safety and anti-terrorist explosion, etc. The distribution of odor plume is time-varying and intermittent in the indoor environment, which makes it difficult for single robot to locate the odor source. The multi-robot cooperative location of odor sources can reduce the interference of the above features and achieve high success rate of odor source localization. In this paper, the fruit fly optimization algorithm is applied to the odor source location problem, and a Fixed-step Fruit Fly Optimization Algorithm (FS-FOA) is proposed. To further improve the efficiency of the search and localization in the larger search range, a new strategy with adaptive algorithm for odor source localization is put forward, which is Concentration-Adaptive -Step Fruit Fly Optimization Algorithm (CAS-FOA). And the efficiency of the strategy in dynamic plume environment is validated in our experiments.

关键词： Robots Optimization Statistics Sociology Task analysis Heuristic algorithms Position measurement

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Application of Enhanced Extended Observer in Station-Keeping of a Quadrotor with Unmeasurable Pitch and Roll Angles ⁎

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IFAC-PapersOnLine 2019年第16期52卷 837-842页

作者： Oleg I. Borisov Anton A. Pyrkin Alberto Isidori ITMO University Faculty of Control Systems and Robotics St. Petersburg Russia Innopolis University Center for Technologies in Robotics and Mechatronics Components Innopolis Russia University of Rome “La Sapienza” Department of Computer Control and Management Engineering “A. Ruberti” Rome Italy

In this paper we provide an example of application of the design of a control law that makes use of an enhanced version of the so-called extended observer. The enhancement in question reposes on the extension of a classical Lemma due to Dayawansa to the case of nonlinear systems whose normal form includes time-varying (and measurable) gains. The presented example concerns a station-keeping problem of a quadrotor with unmeasurable pitch and roll angles.

关键词： Dayawansa’s lemma Robust observers Nonlinear systems High-gain observers Quadrotors

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RoboGlove: Design of a Tendon-Driven Robotic Glove with Differential Mechanisms

RoboGlove: Design of a Tendon-Driven Robotic Glove with Diff...

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RSI/ISM International Conference on robotics and Mechatronics (ICROM)

作者： Mehran Abbasi S. Ali A. Moosavian Center of Excellence in Robotics and Control Advanced Robotics & Automated Systems (ARAS) Lab K. N. Toosi University of Technology Tehran Iran

ISBN: (数字)9781728166049

ISBN: (纸本)9781728166056

Stroke and spinal cord injury (SCI) are two main causes of human upper-limb movement impairments. In this paper, the design of a soft robotic glove with tendon actuation for rehabilitation purposes of the human hand is presented. This robotic glove called KNTU RoboGlove is designed based on differential mechanisms. To help patients, the glove makes grasping objects with different geometries be possible using a single DC motor. To this end, the differential mechanisms are first presented, which are used in two parts of the system. The actuation unit actuates all fingers with a motor, while uses differential gears that can produce the flexion or extension motions without facing singularities. Finally, the functionality of RoboGlove is evaluated in performing two different tasks. First one is grasping a cylindrical object, while the second consists of grasping an irregular-shaped object. Obtained results reveal the merits of the proposed robotic glove.

关键词： Thumb Tendons Robots Ligaments Joints Electron tubes

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Human Body Modeling for Ground Contact Force Estimation of RoboWalk

Human Body Modeling for Ground Contact Force Estimation of R...

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RSI/ISM International Conference on robotics and Mechatronics (ICROM)

作者： Farshid Absalan S. Ali A. Moosavian Center of Excellence in Robotics and Control Advanced Robotics & Automated Systems (ARAS) Lab K. N. Toosi University of Technology Tehran Iran

ISBN: (数字)9781728166049

ISBN: (纸本)9781728166056

RoboWalk is a lower limb rehabilitation robot for Human body weight assistance. To achieve a proper design of RoboWalk, there is a need to understand the dynamics of human and foot contact forces with the ground that is the focus of this paper. In fact, an important component of human-Robo Walk forward dynamics simulation is foot-ground contact modelling. Different models have been proposed to simulate the contact of the foot with the ground. In this study, the dynamic equations of human body is developed with 19 degrees of freedom, while three points of collision with the ground are considered for each foot. Next, the kinematics information obtained from the experimental data are introduced to the dynamical equations, and the joint torques are estimated by solving the inverse dynamics of the human model. The results are compared to the experimental data for model validation. However, it is assumed that the numerical value of the foot contact model parameters are not available, so the pelvis is constrained in such a way that the human model foot does not hit the ground. Therefore, these uncertain parameters does not affect the validation results. Next, a model is selected from the existing models to express the foot contact behavior with the ground, while such models should provide stable walking with selecting the appropriate parameters. To determine the shear and normal contact force, numerical values of the parameters are required while these values depend on the shoe and the ground material and surface. Then, the path traveled by the pelvis in the human dynamic model was compared with the path of the actual pelvic motion and their difference was used to form a cost function to determine the parameters. In the next step, by choosing appropriate values for the contact parameters of the foot and the springs and the damping of the toe joint, the path of the pelvis becomes closely identical to the actual pelvis motion. Finally, after the human gait stabilized, the de

关键词： Mathematical model Dynamics Foot Force Friction Computational modeling Robots

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Robust Adaptation in Dynamically Switching Load Frequency control ⁎

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IFAC-PapersOnLine 2020年第2期53卷 13460-13465页

作者： Tian Tao Spandan Roy Shuai Yuan Simone Baldi Delft Center for Systems and Control TU Delft The Netherlands Robotics Research Centre International Institute of Information Technology Hyderabad India School of Astronautics Harbin Institute of Technology China School of Mathematics Southeast University Nanjing China School of Cyber Science and Engineering Southeast University Nanjing China

In recent years, heuristics for adaptive solutions to load frequency control (LFC) in power systems have been proposed that include adapting the LFC targets or adapting the participation factor for the resources. However, stability guarantees for these adaptation ideas are missing, especially in the presence of switching/evolving topologies of the power system. In today’s smart grids, switching topologies often arise from reconfiguration and resilience against faults or from switching among different control areas in order to dampen oscillations and face cyber attacks. This work proposes a novel LFC framework in which adaptation and switching topologies are combined in a provably stable way.

关键词： Power systems load frequency control adaptive control algorithm grid resilience switching evolving topologies

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Microprocessor means for technical diagnostics of complex systems 2

Microprocessor means for technical diagnostics of complex sy...

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2nd International Workshop on Computer Modeling and Intelligent Systems, CMIS 2019

作者： Korobiichuk, Igor Hryshchuk, Ruslan Horoshko, Vladimir Khokhlacheva, Yulia Warsaw University of Technology Institute of Automatic Control and Robotics Warsaw02-525 Poland Sergey Korolyov Zhytomyr Military Institute Cybersecurity Department of the Research Center Zhytomyr10004 Ukraine National Aviation University Kyiv03058 Ukraine

The construction of algorithms for assessing the operability and the recognition of technical states of complex technical systems can be carried out by preliminary modeling of these problems on large computers. This work is considering the expediency of using multi-level modern microprocessor means technical diagnostics for these purposes. © 2019 CEUR-WS. All rights reserved.

关键词： Algorithm Complex technical systems Management of object maintenance Technical diagnostics Technical states

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RobcWalk: Conceptual and Optimal Design

RobcWalk: Conceptual and Optimal Design

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RSI/ISM International Conference on robotics and Mechatronics (ICROM)

作者： Sina Ghanaat Mahdi Nabipour S. Ali A. Moosavian Center of Excellence in Robotics and Control Advanced Robotics and Automated Systems (ARAS) Lab. K. N. Toosi University of Technology Tehran Iran

ISBN: (数字)9781728166049

ISBN: (纸本)9781728166056

In this paper, the design procedure of the RoboWalk as a lower limb rehabilitation assisting robot is presented. First, a brief introduction of the robot is presented. There is a horizontal force component that is inevitably generated by the robot, and user may suffer from this. In order to overcome this problem, a dimensional optimization is performed to minimize this component, besides the required torque to be exerted by user at knee joint. To this end, a conceptual design of RoboWalk is described using the dimensions obtained by the aforementioned optimization. The detailed design is performed afterwards, and reasons for designing of each major element are discussed in detail. Finally, it is shown that this design is capable of fulfilling our goals and requirements using actuators with lower torque-speed specification.

关键词： Exoskeletons Force Legged locomotion Knee Torque Rails

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Deep Learning Approach For Object Tracking Of RoboEye

Deep Learning Approach For Object Tracking Of RoboEye

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RSI/ISM International Conference on robotics and Mechatronics (ICROM)

作者： Ahmad Moori Javad Khoramdel S. Ali A. Moosavian Center of Excellence in Robotics and Control Advanced Robotics and Automated Systems (ARAS) Lab. K. N. Toosi University of Technology Tehran Iran

ISBN: (数字)9781728166049

ISBN: (纸本)9781728166056

RoboEye is a spherical 3RRR parallel robot which has been developed for its high precision. It can provide high speeds, so can be used for fast tracking tasks. To this end, in this paper proper deep learning approaches are combined with classical control methods. Deep learning algorithms are employed to detect an object of interest among various ones in a monocular image, and then obtain an estimatation of the distance to the camera. So, simultaneous depth estimation, and object detection with a monocular camera for real time implementation is proposed here. For fast calculations, also to overcome manufacturing uncertainties, inverse kinematic equations are computed by a multi-layer perceptron (MLP) network based on real data. Finally, a classical PID controller can perform a fast tracking of the object.

关键词： Cameras Estimation Kinematics Mathematical model Object detection Robot vision systems

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Simulation Analysis of Human-RoboWalk Augmented Model

Simulation Analysis of Human-RoboWalk Augmented Model

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RSI/ISM International Conference on robotics and Mechatronics (ICROM)

作者： Mohamad R. Mohamadi Vahid Akbari Omid Mahdizadeh Mahdi Nabipour S. Ali A. Moosavian Center of Excellence in Robotics and Control Advanced Robotics and Automated Systems (ARAS) Lab. K. N. Toosi University of Technology Tehran Iran

ISBN: (数字)9781728166049

ISBN: (纸本)9781728166056

Exoskeletons are used in different applications including the area of physical therapy in order to facilitate the patient's exercises and as an assisting technology to assist the elderly carry out their ordinary activities. At the beginning of this paper, the RoboWalk assistive device is introduced. Before constructing the system, the performance of the device must be analyzed through different simulations. Hence, the dynamics of the human and RoboWalk are then obtained using the Newton-Euler (NE) and the Recursive Newton Euler Algorithm (RNEA). The obtained models are then augmented to the human model to estimate the RoboWalkjoint forces and torques, and those of the human model. then, RoboWalk is imported to the human model in Opensim software and the augmented model is obtained by defining some constraints and joint models. controllers are then designed for the human and Robo Walk in Opensim. In the next step, The NE and RNEA models are then compared to the models obtained from Opensim software using the same gait data. It is shown that the NE and RNEA methods match very closely and both of the models possess the same behavior as the Opensim model.

关键词： Mathematical model Robots Force Actuators Footwear Knee Dynamics

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Flight control design for a highly flexible flutter demonstrator

Flight control design for a highly flexible flutter demonstr...

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AIAA Scitech Forum, 2019

作者： Luspay, Tamás Baár, Tamás Teubl, Dániel Vanek, Bálint Ossmann, Daniel Wüstenhagen, Matthias Pusch, Manuel Kier, Thiemo Waitman, Sérgio Iannelli, Andrea Marcos, Andres Lowenberg, Mark Systems and Control Lab Institute for Computer Science and Control Kende u 13-17 Budapest Hungary DLR German Aerospace Center Institute of Robotics and Mechatronics Wessling82234 Germany Aerospace Engineering Department University of Bristol University Walk BristolBS8 1TR United Kingdom

ISBN: (数字)9781624105784

ISBN: (纸本)9781624105784

The paper presents the control design approaches for the European research project FLEXOP. The ultimate goal is to develop and apply active flutter suppression and load alleviation techniques on an unmanned flying aircraft demonstrator. Due to the flexible wing of the aircraft new challenges rise for the control design: the traditional rigid body (baseline) control loops have to be augmented with flutter control laws. In our approach, the controllers are designed based on a dynamical model, which is briefly discussed first. Details of the baseline control design, as well as the two different flutter suppression algorithms are discussed in the paper. Hardware-in-the-Loop testing of the controllers are reported before the first test flights of the aircraft. © 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： controllers

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