检索结果-内蒙古大学图书馆

International Conference on Microelectronics, MIEL

作者： P. Bogacki M. Długosz T. Talaśka R. Długosz Aptiv Services Poland Kraków Poland Institute of Telecommunications Faculty of Computer Science Electronics and Telecommunications AGH University of Science and Technology Kraków Poland Faculty of Control Robotics and Electrical Engineering Institute of Automation and Robotics Division of Signal Processing and Electronic Systems Poznan University of Technology Poznan Poland Faculty of Telecommunication Computer Science and Electrical Engineering Bydgoszcz University of Science and Technology Bydgoszcz Poland

The paper presents a family of novel light blob shape descriptors for use in selected active safety algorithms used in Advanced Driver Assistance systems (ADAS). One of the motivations was to obtain a descriptor that would ensure low computational complexity. This makes it easy to implement both in software and hardware. One assumption is that the location of the center of a given light spot is approximately known. The principle of its operation is then to count white pixels in selected directions, starting from this central point. A key issue here is an efficient way of determining indexes of particular pixels belonging to the image patch, as well as the location of points representing places where the white area turns into black. In the case of a hardware implementation, this can be done using a parallel circuit operating in asynchronous mode, without the need for a control clock.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Machine Vision for Auto Positioning in the Modular Industrial Equipment: A Case Study

Machine Vision for Auto Positioning in the Modular Industria...

引用

Industrial Cyber-Physical systems (ICPS)

作者： Maxim Ya. Afanasev Yuri V. Fedosov Yuri S. Andreev Anastasiya A. Krylova Sergey A. Shorokhov Kseniia V. Zimenko Mikhail V. Kolesnikov Faculty of Control Systems and Robotics ITMO University St. Petersburg Russia

ISBN: (数字)9781728163895

ISBN: (纸本)9781728163901

The unification principle of industrial equipment involves splitting the installation into interchangeable components, from which the required type of equipment is assembled for specific production tasks according to the order. For the common industrial equipment, zero position setting usually causes no issues. However, for the modular machines with different sizes of modules, the mounting error can be appeared and it has to be corrected automatically. In addition, due to a possible frequent change of equipment during the production process, clamps can wear out, increasing the error. It is necessary to introduce an automatic adjustment of tool position relative to the carriage suspension, implemented using machine vision systems. The cost of video capture equipment and computing tools decreases, and their characteristics, on the contrary, grow. Moreover, algorithms for recognizing markers' position and angle together with augmented reality development tools are also constantly being improved with their application complexity being significantly reduced, which emphasizes the practicability of their use. The paper describes the problem of eliminating the installation error of instrumental modules on a three-axes platform. The proposed method involves the use of a number of reference markers on the platform, its suspension, and on the plug-in modules.

关键词： Production Tools Machine vision Prototypes Cameras Task analysis Software

来源：评论

学校读者我要写书评

暂无评论

Output controller for Parametrically Uncertain Plants with Finite-Time Simultaneous Disturbance Rejection *

Output Controller for Parametrically Uncertain Plants with F...

引用

European control Conference (ECC)

作者： Dmitrii Dobriborsci Sergey Kolyubin Alexey Bobtsov Faculty of Control systems and Robotics ITMO University St. Petersburg Russia

ISBN: (数字)9783907144022

ISBN: (纸本)9781728188133

A new output controller for parametrically uncertain unstable linear systems with an arbitrary relative degree under unmeasured matching input harmonic disturbances is proposed in this paper. In contrast to previous works we can guarantee finite-time convergence for disturbance parameters estimates, which enables fast disturbance cancellation under control signal magnitude constraints. Parallel kinematics Ball-and-Plate robotic system is considered as a test-bed for algorithms validation.

关键词： Harmonic analysis Convergence Switches Closed loop systems Robots Mechatronics

来源：评论

学校读者我要写书评

暂无评论

Access control System Based on Face Recognition

Access Control System Based on Face Recognition

引用

International Conference on control, Decision and Information Technologies (CoDIT)

作者： Sergei Shavetov Vladimir Sivtsov Faculty of Control Systems and Robotics ITMO University St Petersburg Russian Federation

ISBN: (数字)9781728159539

ISBN: (纸本)9781728159546

Face recognition is a technology that uses face image of someone to verify his identity by finding this person in a given photos database. It becomes very practical in access control systems as it does not require any physical interaction for gaining access as traditional ways with keys. Moreover, these systems only require a camera for recognition and are easy to install and use. This is why they are already in use by companies as access control to their offices, in home automation systems, *** this paper, different approaches to face recognition are studied. The first step of any face recognition system is face detection and cropping so we analyzed classical Viola-Jones face detection and MultiTask Convolutional Neural Networks (MTCNN) in terms of detection quality and processing *** final classifier obtained is capable of matching face from the online camera to image from a given database. We also considered decreasing the vulnerability of standalone face recognition by adding a spoof detection method so that the system does not react to every approach to bypass the system like showing a photo of an allowed person shown on a phone's screen.

关键词： Face recognition Cameras Access control Face detection Databases Faces Information technology

来源：评论

学校读者我要写书评

暂无评论

Method of Converting an Induction Motor to a Permanent Magnet Synchronous Motor (Ls-Pmsm) with Linear Starting Using FEA for Mechatronic systems

Method of Converting an Induction Motor to a Permanent Magne...

引用

2019 IEEE International Conference "Quality Management, Transport and Information Security, Information Technologies" IT and QM and IS 2019

作者： Marusina, Maria Ya Silaev, Alexey A. Nevmerzhitsky, Denis A. ITMO University Faculty of Control Systems and Robotics St. Petersburg Russia

ISBN: (纸本)9781728125954

This article describes basic overview of retrofit design flow of line start permanent magnet synchronous machine. Developed design methodology involves extensive usage of finite element analysis. Four strategies of rotor modification are present in this paper to provide cheap and efficient solution. Preliminary calculations showed positive results. © 2019 IEEE.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

Adaptive Full State Observer for Nonsalient PMSM with Noised Measurements of the Current and Voltage ⁎

引用

IFAC-PapersOnLine 2020年第2期53卷 1652-1657页

作者： Anton Pyrkin Alexey Vedyakov Alexey Bobtsov Dmitry Bazylev Madina Sinetova Alexey Ovcharov Antipov Vladislav ITMO University Faculty of Control Systems and Robotics 49 Kronverksky Pr. St. Petersburg 197101 Russia

An algorithm of adaptive estimation of the magnetic flux for the non-salient permanent magnet synchronous motor (PMSM) for the case when measurable electrical signals are corrupted by a constant offset is presented. A new nonlinear parameterization of the electric drive model based on dynamical regressor extension and mixing (DREM) procedure is proposed. Due to this parameterization the problem of flux estimation is translated to the auxiliary task of identification of unknown constant parameters related to measurement errors. It is proved that when both current and voltage measurements are biased the proposed algorithm ensures convergence of the flux observation error to a bounded set. At the same time the position error converges to zero. The observer provides global exponential convergence if the corresponding regression function satisfies the persistent excitation condition. If the regression function is not square integrable the global asymptotic convergence is ensured. In comparison with known analogues this paper gives a constructive way of the flux reconstruction for a nonsalient PMSM with guaranteed performance (low oscillation, convergence rate regulation) and, from other hand, a straightforwardly easy implementation of the proposed observer to embedded systems.

关键词： Nonlinear control systems robust observers synchro motors flux estimator speed estimator sensorless approach voltage offset

来源：评论

学校读者我要写书评

暂无评论

RNA genetic algorithm based on octopus learning mechanism

RNA genetic algorithm based on octopus learning mechanism

引用

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

作者： Lifeng Zhang Qiuxuan Wu Xiaoni Chi Jian Wang Botao Zhang Weijie Lin Sergey A. Chepinskiy Anton A. Zhilenkov Yanbin Luo Farong Gao School of Automation Hangzhou Dianzi University Hangzhou China Faculty of Control Systems and Robotics ITMO University St. Petersburg Russia Institute of Hydrodynamics and Control Processes Saint-Petersburg State Marine Technical University Russia

Genetic algorithms are often easy to fall into local optimum, Inspired by octopus RNA gene editing ability and learning ability, this paper proposed an RNA genetic algorithm based on octopus learning mechanism (LRNA-GA), which uses a single RNA chain to represent the individuals of the population, Imitating the octopus's A-to-G RNA editing method to replace traditional gene mutations, using behavioral learning to design the RNA chain, and determining the possibility of RNA editing by evaluating the RNA chain, so as to quickly jump out of the local optimal solution. The effectiveness of LRNA-GA is tested through typical benchmark functions, and it has fast search capabilities and high accuracy.

关键词： Learning systems RNA Sociology Reinforcement learning Real-time systems Statistics Standards

来源：评论

学校读者我要写书评

暂无评论

Industrial Cyber-Physical Platform for small series production of polymer parts 3

Industrial Cyber-Physical Platform for small series producti...

引用

3rd IEEE Conference on Industrial Cyberphysical systems, ICPS 2020

作者： Chukichev, Artemiy V. Timofeeva, Olga S. Yablochnikov, Eugeny I. Colombo, Armando Walter Itmo University Faculty of Control Systems and Robototechnics St.Petersburg Russia University of Applied Sciences Emden/Leer Faculty of Technology Emden Germany

ISBN: (纸本)9781728163895

The article discusses an approach of creating an Industrial Cyber-Physical Platform in a research laboratory to support the application of Industrial Cyber-Physical systems technologies in production processes. The research is based on the processes of small series production using injection molding with polymer forming parts made with the use of additive technology. The article considers the issues of improving physical production processes using information generated by identification of digitalized objects in the production system. The need for using process simulation systems and the possibility of processes improvement by collecting and analyzing digitalized data at all stages of technological manufacturing preparation are noted. © 2020 IEEE.

关键词： Cyber Physical System

来源：评论

学校读者我要写书评

暂无评论

Position-based motion control for parallel manipulators under parametric uncertainties and with finite-time external disturbance rejection ⁎

引用

IFAC-PapersOnLine 2020年第2期53卷 8456-8461页

作者： Dmitrii Dobriborsci Sergey Kolyubin Natalia Gorokhova Marina Korotina Alexey Bobtsov Faculty of Control Systems and Robotics ITMO University St. Petersburg Russia Center for Technologies in Robotics and Mechatronics Components Innopolis University Innopolis Russia.

We consider the task of motion control for non-prehensile manipulation using parallel kinematics mechatronic setup, in particular, stabilization of a ball on a plate under unmeasured external harmonic disturbances. System parameters are assumed to be unknown, and only a ball position is measurable with a resistive touch sensor. To solve the task we propose a novel passivity-based output control algorithm that can be implemented for unstable linearized systems of an arbitrary relative degree. In contrast to previous works, we describe a new way to parametrize harmonic signal generators and an estimation algorithm with finite-time convergence. This scheme enables fast disturbance cancellation under control signal magnitude constraints.

关键词： Adaptive control output control motion control disturbance rejection finite-time estimation ball-and-plate

来源：评论

学校读者我要写书评

暂无评论

Distributed formation control of networked mechanical systems

引用

IFAC-PapersOnLine 2022年第13期55卷 294-299页

作者： N. Javanmardi P. Borja M.J. Yazdanpanah J.M.A. Scherpen Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering University of Tehran Tehran Iran Department of Cognitive Robotics Delft University of Technology Delft The Netherlands Jan C. Wilems Center for Systems and Control ENTEG Faculty of Science and Engineering University of Groningen Groningen The Netherlands

This paper investigates a distributed formation tracking control law for large-scale networks of mechanical systems. In particular, the formation network is represented by a directed communication graph with leaders and followers, where each agent is described as a port-Hamiltonian system with a constant mass matrix. Moreover, we adopt a distributed parameter approach to prove the scalable asymptotic stability of the network formation, i.e., the scalability with respect to the network size and the specific formation preservation. A simulation case illustrates the effectiveness of the proposed control approach.

关键词： Autonomous systems Cooperative control Networked control systems Large-scale systems Port-Hamiltonian systems Scalability

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：