检索结果-内蒙古大学图书馆

5th International Conference on Electronic Engineering and Informatics, ICEEI 2023

作者： Xie, Zikang Zhang, Hongxin Tian, Liguo Wang, Yanchao Sun, Miao Tianjin University of Technology and Education Tianjin300222 China Tianjin Key Laboratory of Information Sensing & Intelligent Control Tianjin300222 China

ISBN: (纸本)9781643685021

The stochastic resonance algorithm is widely used to process weak noisy signals with a single frequency. In practice, most signals are co-existing with multiple target frequencies, so stochastic resonance has certain limitations on processing multi-frequency signals. Adaptive adjustment of stochastic resonance parameters according to the target signal frequency is the key point to efficiently process weak multi-frequency signals. The simulation data illustrate that the Grey wolf algorithm can be used to optimize the structural parameters of the bi-stable stochastic resonance system. Aiming at the difference of multi-frequency signals, the Grey wolf algorithm can grope the best function parameters through realizing algorithm iteration and realize the efficient processing of multi-frequency weak signals. © 2024 The Authors.

关键词： Magnetic resonance

来源：评论

学校读者我要写书评

暂无评论

Dynamic Interaction Study on Double-Pantograph and Rigid-Catenary for AC Traction Power Supply System 1

引用

6th International Conference on Electrical Engineering and Information Technologies for Rail Transportation, EITRT 2023

作者： Huang, Qiang Wang, Ying Chen, Xiaoqiang Wang, Yuting Guo, Jianlong Lanzhou Jiaotong University Lanzhou730070 China Key Laboratory of Opto-Technology and Intelligent Control Ministry of Education Lanzhou730070 China

ISBN: (数字)9789819993192

ISBN: (纸本)9789819993185

With the development of urban rail transit and the installation of rigid catenary in low clearance tunnels during electrification renovations, the dynamic coupling of pantograph catenary in AC rigid contact network system has become a new hot topic. This article studies the coupling characteristics of the pantograph catenary under the operating conditions of dual pantographs. Equivalent AC rigid contact network to Euler Bernoulli beam based on beam theory, the pantograph model is established using three mass blocks, and the dual pantograph catenary model is established using penalty functions. The results show that under the operating condition of the AC rigid catenary, the train speed is inversely proportional to the span of the AC rigid catenary;Among the commonly used spans, a span of 8 or 10 m is suitable for train speeds below 80 km/h, while a span of 6 or 8 m is suitable for train speeds of 80–140 km/h. © 2024, Beijing Paike Culture Commu. Co., Ltd.

关键词： Pantographs

来源：评论

学校读者我要写书评

暂无评论

Robust control of two-wheeled bicycle robot under wind disturbance 2

Robust control of two-wheeled bicycle robot under wind distu...

引用

2nd Asia Conference on Electronics Engineering, ACEE 2024

作者： Yuan, Ruijian Zhang, Yongli Geng, Lihui Li, Xuehui Tianjin University of Technology and Education Tianjin Key Laboratory of Information Sensing and Intelligent Control School of Automation and Electrical Engineering Tianjin China

ISBN: (纸本)9798350375251

The two-wheeled bicycle robot (TWBR) is a new intelligent transportation, which can be used for special tasks such as forest operation and disaster relief. Although the TWBR is not structurally complex, the dynamics are very complex to model. It is extremely difficult to build an accurate mathematical model. Wind disturbance is, in principle, always present on open roads and influence on the driving stability increases. Aiming at mathematical modeling error caused by mass center of the TWBR frame and external disturbance caused by wind force, this paper introduces a suitable control method. Firstly, the Kane method is adopted for modeling. Secondly, robust control can provide stability and performance guarantee for both uncertainty and disturbance. Finally, the results of simulation and physical experiment show the effectiveness of the robust H∞ control for TWBR. In this paper, MATLAB/Simulink is used to establish a combined mathematical model of wind force as an experimental external disturbance. The robust H∞ controller based on linear matrix inequality (LMI) and Linear quadratic regulator(LQR) are realized. It is verified that the robust H∞ controller has better effectiveness than the LQR controller when facing the uncertainty and external disturbance. © 2024 IEEE.

关键词： Bicycles

来源：评论

学校读者我要写书评

暂无评论

Optimal Scheduling of Provincial local Coordinated Based on Source-grid-load-storage Interactions 25

Optimal Scheduling of Provincial local Coordinated Based on ...

引用

25th IEEE China Conference on System Simulation technology and its Application, CCSSTA 2024

作者： Zhang, Haixuan Kong, Xiangyu Zhang, Delong Liu, Jiancun Zhou, Xuesong Liu, Mao Tianjin University of Technology Tianjin Key Laboratory of New Energy Power Conversion Transmission and Intelligent Control Tianjin China Tianjin University Key Laboratory of Smart Grid Tianjin China

ISBN: (纸本)9798350366600

Considering the characteristics of coordination among source-network-load-storage, a provincial local coordinated scheduling method based on the interaction of sourcenetwork-load-storage is proposed. Firstly, the interaction mechanism of source-grid-load-storage is refined. Secondly, according to the spatial characteristics of the scheduling of provincial local coordinated, a multi-objective optimal scheduling model is established with the objectives of economy and new energy consumption. Thirdly, a genetic algorithm is used to solve the problem. Finally, by analyzing the examples, it is proved that the proposed method can reduce the system cost and improve the utilization rate of new energy. © 2024 IEEE.

关键词： Scheduling algorithms

来源：评论

学校读者我要写书评

暂无评论

Parameter Identification and control of Two-Wheel Balance Vehicle Model Based on Subspace Algorithm 2

Parameter Identification and Control of Two-Wheel Balance Ve...

引用

2nd Asia Conference on Electronics Engineering, ACEE 2024

作者： Li, Xuehui Zhang, Yongli Geng, Lihui Yuan, Ruijian Tianjin University of Technology and Education Tianjin Key Laboratory of Information Sensing and Intelligent Control School of Automation and Electrical Engineering Tianjin China

ISBN: (纸本)9798350375251

To address parameter uncertainty in the two-wheel balance vehicle (TWBV) system, a closed-loop subspace algorithm (CLSA) was employed to identify and correct uncertain structural parameters. This got in a more accurate system model. Based on the dynamics mechanism model of the TWBV, we designed a simple controller to achieve self-balancing control. We harvested the input and output sample data required for identification. The method used to filter out noise from the original signal and extract essential dynamic characteristics of the system is the input-output bias voltage function. The parameters of the dynamics model for the TWBV were subsequently identified and corrected using the CLSA. Finally, the linear quadratic regulator (LQR) controller is designed based on the model obtained from identification and compared with the original unidentified model. The results of the simulation and physical experiment show that the control system with the modified system after identification has better performance. This paper verifies the effectiveness of the proposed control strategy, which provides a reference scheme for solving model uncertainty in similar systems and improving control accuracy. © 2024 IEEE.

关键词： Vehicle wheels

来源：评论

学校读者我要写书评

暂无评论

Mathematical Model of Adaptive Optimal Allocation for the Whole Process of Driving Through No. 18 Non-crossing Crossover Considering Special Sections 1

引用

6th International Conference on Electrical Engineering and Information Technologies for Rail Transportation, EITRT 2023

作者： Zhao, Ganghui Wang, Ying Chen, Xiaoqiang Wang, Yixuan Lanzhou Jiaotong University Lanzhou730070 China Key Laboratory of Opto-Technology and Intelligent Control Ministry of Education Lanzhou730070 China

ISBN: (数字)9789819993192

ISBN: (纸本)9789819993185

With the large-scale construction and the requirement of speed increase of high-speed railway in China, non-crossing crossover has been widely used in high-speed railway catenary. In order to satisfy the requirements of smooth operation of the line, a model of No. 18 non-crossing crossover based on the whole running process is proposed. Based on the whole process of driving through No. 18 non-crossing crossover, the operating principle of No. 18 non-crossing crossover is introduced, the whole model of No. 18 non-crossing crossover composed of line center and contact line model is established, the process of driving through two special sections of No. 18 non-crossing crossover initial contact area and contour area is studied, the influence of special section on the model of no-crossing crossover is considered, and the special section model of No. 18 non-crossing crossover is established. Based on the laboratory platform, the software of No. 18 non-crossing crossover is developed, and the model is validated by using the measured data of high-speed field of Ningdong Station from Yinchuan to Zhongwei of Yinlan Passenger Dedicated. The calcu-lation results show that the proposed model has the characteristics of validity, accuracy and real-time, and is suitable to the calculation of No. 18 non-crossing crossover in various situations. © 2024, Beijing Paike Culture Commu. Co., Ltd.

关键词： Railroads

来源：评论

学校读者我要写书评

暂无评论

Review of Research on Motor Imagery in the Field of Rehabilitation 4

Review of Research on Motor Imagery in the Field of Rehabili...

引用

4th International Conference on Computer Science, Electronic Information Engineering and intelligent control technology, CEI 2024

作者： Ji, Xin Guo, Tinghang Li, Xiaohan Yin, Qianhan Li, Runze Qin, Zhuanping Han, Yu Lu, Guangda Control Automation and Electrical Engineering College Tianjin University of Technology and Education Tianjin Key Laboratory of Information Sensing & Intelligent Tianjin China

ISBN: (纸本)9798350378542

Motor imagery has the advantages of non-invasiveness, safety and economic efficiency in post-stroke motor function rehabilitation, and has a wide application prospect in the field of medical rehabilitation. In this paper, we sort out the current status of the application of motor imagery brain-computer interface technology, summarize the development of motor imagery decoding algorithms and their application in the field of motor rehabilitation, discuss and analyze the research progress of motor imagery brain-computer interface technology in medical rehabilitation, and summarize the development trend of its development, so as to provide new therapeutic methods and ideas for the future of medical rehabilitation. © 2024 IEEE.

关键词： Medical imaging

来源：评论

学校读者我要写书评

暂无评论

Optimized Complex Convolutional Neural Network for Steady-State Visual Evoked Potentials Signal classification 25

Optimized Complex Convolutional Neural Network for Steady-St...

引用

25th IEEE China Conference on System Simulation technology and its Application, CCSSTA 2024

作者： Li, Qingbin Han, Chunxiao Liu, Yanli Liu, Junxiu Tianjin University of Technology and Education Tianjin Key Laboratory of Information Sensing & Intelligent Control School of Automation and Electrical Engineering Tianjin China

ISBN: (纸本)9798350366600

The steady-state visual evoked potential (SSVEP) is one of the most commonly used paradigms in the BCI system, which produces a significant response to visual stimuli of a specific frequency. How to better improve the classification performance of SSVEP signals is currently the main task. In this paper, a modified C-CNN-SVM model of EEG signal is proposed, aiming to enhance the precision of SSVEP signal classification. Firstly, spectral features are obtained from the SSVEP signal using fast fourier transform (FFT) as input to the model. FFT obtains 128 data lengths of the SSVEP signal, including 64 real part data and 64 complex part data. Then, CNN is used to further extract features, and finally, support vector machine (SVM) is used for classification. The experimental results show that the modified C-CNN-SVM model achieves an average accuracy of 93.86%, which is better than the traditional CCA, FBCCA and TRCA algorithms. © 2024 IEEE.

关键词： Convolutional neural networks

来源：评论

学校读者我要写书评

暂无评论

Safety-Certified Distributed Formation control of Networked Autonomous Surface Vehicles by Unifying control Lyapunov and control Barrier Functions

引用

Journal of Systems Science & Complexity 2025年第2期38卷 837-856页

作者： CONG Siming GU Nan WANG Haoliang WANG Dan PENG Zhouhua School of Marine Electrical Engineering Dalian Maritime University State Key Laboratory of Maritime Technology and Safety Dalian Maritime University Dalian Key Laboratory of Swarm Control and Electrical Technology for Intelligent Ships School of Marine Engineering Dalian Maritime University Department of Automation Shanghai Jiaotong University Dalian KeyLaboratory of Swarm Control and Electrical Technology for Intelligent Ships

This paper investigates the path-guided distributed formation control of networked autonomous surface vehicles(ASVs) subject to model uncertainties and environmental disturbances. A safety-certified path-guided coordinated control method is proposed for multiple ASVs to achieve a distributed formation in obstacle environments. Specifically, a neural predictor with a high-order tuner is presented to approximate unknown nonlinearities with accelerated learning performance. Subsequently, control Lyapunov functions(CLFs) and control barrier functions(CBFs) are constructed for mapping stability constraints and safety constraints on states to control inputs. A quadratic optimization problem is constructed with the norm of control inputs as the objective function, CLFs and CBFs as constraints. Neurodynamic optimization is used to deal with the quadratic programming problem and generate the optimal kinetic control signals, thereby attaining the desired safe formation. Unlike the high-order CBF, a CBF backstepping method is proposed to establish safety constraints such that repeated time derivatives of system nonlinearities can be avoided. The multi-ASVs system is ensured to be input-to-state safe irrespective of high-order relative degree. Through the Lyapunov theory, the multi-ASVs system is proven to be input-to-state stable. Finally, simulation results are presented to validate the efficacy of the presented safety-certified distributed formation control for networked ASVs.

关键词： Autonomous surface vehicles control barrier functions neurodynamic optimization path-guided formation control safety-certified control

来源：评论

学校读者我要写书评

暂无评论

Design of a Multi-motor control System for a Parallel Mechanism 4th

Design of a Multi-motor Control System for a Parallel Mechan...

引用

4th International Conference on Energy Power and Automation Engineering, ICEPAE 2023

作者： Wang, Yanchao Zhang, Hongxin Tian, Liguo Xie, Zikang Sun, Miao Tianjin University of Technology and Education Tianjin300222 China Tianjin Key Laboratory of Information Sensing and Intelligent Control Tianjin300222 China

ISBN: (纸本)9789819988778

In this paper, a motion control system has been designed. The system is used to control twelve motors which drive a parallel mechanism by adjusting pulse width modulation (PWM) with a microcontroller. The motors are selected according to the characteristics of the parallel mechanism. And the dynamic model of the motor is established. Many related control experiments are done, and the control error is analyzed. It is shown that the motion control system designed in this paper can achieve more accurate control of the parallel mechanism experimentally. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

关键词： Pulse width modulation

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：