Measurement and Control最新文献_第9页

Improved active disturbance rejection control with the optimization algorithm for the leg joint control of a hydraulic quadruped robot 基于优化算法的液压四足机器人腿关节控制改进自抗扰控制

Measurement and Control Pub Date : 2023-03-14 DOI: 10.1177/00202940221100298

X. Shao, Yuqi Fan, Junpeng Shao, Guitao Sun

{"title":"Improved active disturbance rejection control with the optimization algorithm for the leg joint control of a hydraulic quadruped robot","authors":"X. Shao, Yuqi Fan, Junpeng Shao, Guitao Sun","doi":"10.1177/00202940221100298","DOIUrl":"https://doi.org/10.1177/00202940221100298","url":null,"abstract":"To enhance the joint control performance in hydraulic quadruped robots, active disturbance rejection control was used in the leg joint controller design of a hydraulic quadruped robot in combination with the self-growing lévy-flight salp swarm algorithm in this paper. First, the robot-leg structure of the hydraulic system model was built to analyze system operation details in terms of the mathematical construction. Second, the self-growing lévy-flight salp swarm algorithm was introduced. Then, the active disturbance rejection control parameters required were defined based on the composition and principle of the third-order active disturbance rejection control model. Third, the system evaluation function ITSE was selected, and the parameter tuning problem was converted into an algorithm optimization problem. Finally, the joint system of the hydraulic quadruped robot was taken as the research object, the self-growing lévy-flight salp swarm algorithm was added to the active disturbance rejection control to tune parameters, and this paper compared three different algorithms in the same environments to show the good control ability of the proposed method. To comprehensively show the performances of robot joint systems controlled by the proposed controller, the temporal response results, the frequency response results, the sawtooth response results, the ramp response, and the random response were displayed. All results reveal the effectiveness and excellent performance of the proposed controller in joint systems of a hydraulic quadruped robot.","PeriodicalId":18375,"journal":{"name":"Measurement and Control","volume":"7 1","pages":"1359 - 1376"},"PeriodicalIF":0.0,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76458606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on the composite fault diagnosis of gearbox based on local mean decomposition and Hilbert demodulation 基于局部均值分解和Hilbert解调的齿轮箱复合故障诊断研究

Measurement and Control Pub Date : 2023-03-07 DOI: 10.1177/00202940221118128

Jingyue Wang, Tuojiang Chen, Jiangang Li, Haotian Wang, Junnian Wang

引用次数: 0

Solution method for time-frequency responds of servo control systems based on frequency domain characteristics 基于频域特性的伺服控制系统时频响应求解方法

Measurement and Control Pub Date : 2023-03-03 DOI: 10.1177/00202940231158392

Dun Lyu, Yibo Ren, Shijie Chen, Hui Liu

{"title":"Solution method for time-frequency responds of servo control systems based on frequency domain characteristics","authors":"Dun Lyu, Yibo Ren, Shijie Chen, Hui Liu","doi":"10.1177/00202940231158392","DOIUrl":"https://doi.org/10.1177/00202940231158392","url":null,"abstract":"In view of that the tracking error originates from the amplitude attenuation and phase lag of the setpoints frequency component caused by the servo control system at each moment, this paper puts forward the idea of obtaining the setpoints time-frequency response (STFR) by solving the amplitude attenuation and phase lag of each frequency component of the setpoints at each moment. First, the feasibility of the proposed idea is proved theoretically; Then, the setpoints time-frequency transform is carried out and the solving method of STFR and setpoints time-frequency response error (STFRE) is established; Finally, taking the servo control system as the object, the STFR and STFRE are solved, and the corresponding relationship with the output time-frequency transformation and tracking error is analyzed to verify the proposed method. The contributions of the proposed method are: the method achieves the solution of STFR based on the amplitude attenuation and phase lag of the servo system; it avoids the limitation that only harmonic wavelet bases must be used in the existing method and can be applied to the solution of the time-frequency response of actual setpoints; it can separate the setpoints loss or tracking error caused by amplitude attenuation and phase lag; it can determine the redundancy or lack of strategies such as filters for certain setpoints and servo control system.","PeriodicalId":18375,"journal":{"name":"Measurement and Control","volume":"1 1","pages":"1333 - 1349"},"PeriodicalIF":0.0,"publicationDate":"2023-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87730035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RETRACTION NOTICE: Hybrid blockchain–based privacy-preserving electronic medical records sharing scheme across medical information control system 撤销通知:基于区块链的跨医疗信息控制系统的混合保密电子病历共享方案

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221126037

引用次数: 0

RETRACTION NOTICE: Composite observer-based integral sliding mode dynamical tracking control for nonlinear systems subject to actuator faults and mismatched disturbances 基于复合观测器的非线性系统的积分滑模动态跟踪控制

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221126031

引用次数: 0

Ball screw fault diagnosis based on continuous wavelet transform and two-dimensional convolution neural network 基于连续小波变换和二维卷积神经网络的滚珠丝杠故障诊断

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221107620

Zhijie Xie, Di Yu, C. Zhan, Qiancheng Zhao, Junxiang Wang, Jiuqing Liu, Jiaxiu Liu

{"title":"Ball screw fault diagnosis based on continuous wavelet transform and two-dimensional convolution neural network","authors":"Zhijie Xie, Di Yu, C. Zhan, Qiancheng Zhao, Junxiang Wang, Jiuqing Liu, Jiaxiu Liu","doi":"10.1177/00202940221107620","DOIUrl":"https://doi.org/10.1177/00202940221107620","url":null,"abstract":"Due to extreme operating conditions such as high-speed and heavy loads, ball screws are prone to damages, that affect the accuracy and operational safety of the mechanical equipment. As strong background noise and weak fault characteristics, it is difficult to capture the inherent fault state only depending on the time-domain or frequency-domain information from the vibration signal. In this paper, a fault diagnosis method for the ball screw based on continuous wavelet transform (CWT) and two-dimensional convolutional neural network (2DCNN) is proposed. The noise-reducing vibration signal is obtained via CWT. The time-frequency graph of the noise reduction signal can more comprehensively reflect the fault information of the ball screw. The time-frequency graph is used as the input to train and test the 2DCNN. Finally, diagnosis results of different types of faults reveal that the proposed CWT-2DCNN fault diagnosis method can achieve an average recognition rate of 99.67%. Compared with one-dimensional convolutional neural network (1DCNN) and traditional BP neural network, the proposed method has fast network convergence and high recognition accuracy. Time-frequency graphs of the noise-reduced signal used as fault features for classification can effectively avoid the problem of uncertainty due to the manual extraction of features. The proposed method has high application potential in the field of ball screw pair fault diagnosis.","PeriodicalId":18375,"journal":{"name":"Measurement and Control","volume":"21 1","pages":"518 - 528"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89797817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Measuring operating efficiency of solar photovoltaic power plants using epsilon-based measure model: A case study in Vietnam 基于epsilon测度模型的太阳能光伏电站运行效率测度:以越南为例

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221104870

Chia-Nan Wang, Tran Quynh Le, Thanh-Tuan Dang

{"title":"Measuring operating efficiency of solar photovoltaic power plants using epsilon-based measure model: A case study in Vietnam","authors":"Chia-Nan Wang, Tran Quynh Le, Thanh-Tuan Dang","doi":"10.1177/00202940221104870","DOIUrl":"https://doi.org/10.1177/00202940221104870","url":null,"abstract":"Vietnam has enormous potential for solar power thanks to its favorable geographical location. In recent years, the Vietnamese government has strived to develop renewable energy. The objective of this paper is to measure the operational efficiency of solar photovoltaic (PV) power plants using data envelopment analysis (DEA) with the epsilon-based measure (EBM) model. The utilization of the EBM model is due to its advantage to integrate radial and non-radial measurements to get a more exact estimate of relative efficiency. Using the merits of the EBM model, a case study of 18 decision-making units (DMUs) in Vietnam is presented. In the proposed model, three input variables are selected, which are capital cost, installed capacity, solar irradiation, while energy production and consumer density are considered as output variables. Following that, the technique for order of preference by similarity to ideal solution (TOPSIS) method is used to assess the validity and applicability of results. The results illustrate that two methods reach common rankings, in which the priority rankings of the best performing DMUs are very similar. This shows that the applied models are robust in nature. This paper offers significant materials that serve as practical and timelier solutions for decision-makers in the operating and management strategies of the solar energy industry, also a critical guideline in many related decision-making problems for any other industries around the world.","PeriodicalId":18375,"journal":{"name":"Measurement and Control","volume":"2 1","pages":"874 - 890"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74326534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RETRACTION NOTICE: Contourlet transform and adaptive neuro-fuzzy strategy–based color image watermarking 撤回注意:基于Contourlet变换和自适应神经模糊策略的彩色图像水印

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221126035

引用次数: 0

A global fast terminal sliding mode control for trajectory tracking of unmanned aerial manipulation 一种用于无人机操纵轨迹跟踪的全局快速终端滑模控制

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221110946

Qian Fang, Pengjun Mao, Lirui Shen, Jun Wang

{"title":"A global fast terminal sliding mode control for trajectory tracking of unmanned aerial manipulation","authors":"Qian Fang, Pengjun Mao, Lirui Shen, Jun Wang","doi":"10.1177/00202940221110946","DOIUrl":"https://doi.org/10.1177/00202940221110946","url":null,"abstract":"Unmanned Aerial Manipulation (UAM) is a novel type of Unmanned Aerial Vehicle (UAV) equipped with manipulators instead of manual operation in hazardous and unreachable environments. The combination of UAV and manipulator unavoidably causes a significant predicament due to the increase of nonlinearity and coupling of the UAM system. Consequently, the system’s robustness becomes more vulnerable in the presence of system uncertainty and external disturbance. In addition, as a real-time embedded system, rapid and precise tracking of the desired trajectory is an essential aspect of UAM performance. This study aims to establish the dynamic model of UAM and propose a global fast terminal sliding mode controller for trajectory tracking. The controller is derived from Lyapunov theory to ensure the stability of the closed-loop system. We propose a set of illustrative metrics to evaluate the performance of the designed controller and compare it with the other two controllers by simulation. The results show that the proposed controller can effectively reduce the convergence time of tracking error and has good robustness and mechanical properties. And experimental results also verified its effectiveness.","PeriodicalId":18375,"journal":{"name":"Measurement and Control","volume":"123 1 1","pages":"763 - 776"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80212175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

RETRACTION NOTICE: An investigation of various actuation mechanisms in robot arm 撤回通知:对机械臂中各种驱动机构的研究

Measurement and Control Pub Date : 2023-03-01 DOI: 10.1177/00202940221126030

引用次数: 0