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Cooperative Control Strategy Research Based on Hybrid Dual-terminal Event-triggered Mechanism

Zidonghua Xuebao/Acta Automatica Sinica 2025年第4期51卷 792-803页

作者： Li, Dong-Ni Sun, Jia-Yue Yan, Yu-Qing Zhang, Hua-Guang State Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang110819 China College of Information Science and Engineering Northeastern University Shenyang110819 China

For nonlinear multiagent systems, this paper proposes the fuzzy tracking control strategy based on hybrid dual-terminal event-triggered mechanism. First of all, compared with existing state triggering mechanisms, a flexible and adjustable threshold designing method is constructed, which meets the real-time performance requirements of the system. Moreover, the improved state triggering mechanism considers the estimated state signal as the trigger signal, which effectively reduces the conservatism of existing mechanisms and enhances the flexibility of threshold design. Subsequently, the hybrid dual-terminal event-triggered mechanism is designed for controller to actuator link and sensor to controller link, which releases dual channel communication pressure, simultaneously. Besides, to solve the problem of unknown unmeasurable state, the state observer is constructed, which bases solely on relative output information. Finally, all the signals are semiglobally uniformly ultimately bounded in the closed-loop system, and a practical simulation example demonstrates the feasibility of the proposed control strategy. © 2025 Science Press. All rights reserved.

关键词： Controllers

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Strategic Gradient Transmission With Targeted Privacy-Awareness in Model Training: A Stackelberg Game Analysis

IEEE Transactions on Artificial Intelligence

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IEEE Transactions on Artificial Intelligence 2024年第9期5卷 4635-4648页

作者： Sun, Hezhe Wang, Yufei Yang, Huiwen Huo, Kaixuan Li, Yuzhe Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110004 China Liaoning ATS Intelligent Transportation Technology Company Ltd. Research Institute Shenyang110004 China The Hong Kong University of Science and Technology Department of Electronic and Computer Engineering Hong Kong999077 Hong Kong

Privacy-aware machine learning paradigms have sparked widespread concern due to their ability to safeguard the local privacy of data owners, preventing the leakage of private information to untrustworthy platforms or malicious third parties. This article focuses on characterizing the interactions between the learner and the data owner within this privacy-aware training process. Here, the data owner hesitates to transmit the original gradient to the learner due to potential cybersecurity issues, such as gradient leakage and membership inference. To address this concern, we propose a Stackelberg game framework that models the training process. In this framework, the data owner's objective is not to maximize the discrepancy between the learner's obtained gradient and the true gradient but rather to ensure that the learner obtains a gradient closely resembling one deliberately designed by the data owner, while the learner's objective is to recover the true gradient as accurately as possible. We derive the optimal encoder and decoder using mismatched cost functions and characterize the equilibrium for specific cases, balancing model accuracy and local privacy. Numerical examples illustrate the main results, and we conclude with expanding discussions to suggest future investigations into reliable countermeasure designs. © 2020 IEEE.

关键词： Game theory

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Prescribed Performance Filtering for Generation of Smooth Reference Trajectory 4

Prescribed Performance Filtering for Generation of Smooth Re...

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4th International Conference on Industrial Artificial Intelligence, IAI 2022

作者： Ding, Wei Zhang, Jin-Xi Changshu Institute of Technology Faculty of Electrical Engineering and Automation Changshu China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang China

ISBN: (数字)9781665451208

ISBN: (纸本)9781665451208

This paper is concerned with the problem of generating smooth reference trajectories by filtering, for backstepping control designs for nonlinear systems. To solve this problem, a prescribed performance filtering approach is proposed. Our filter is driven by an input signal which is generated recursively. In each design step, a barrier function is employed to confine the filtering error within the predefined bound. In this way, the filtered reference is not only smooth but also approximate the original reference with any high accuracy. The simulation results on the tracking control of a Van der Pol system illustrate the effectiveness and superiority of our approach. © 2022 IEEE.

关键词： Navigation

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Numerical stress and damage analysis of cement plug under casing corrosion in CO₂ geological sequestration

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process Safety and Environmental Protection 2025年 193卷 1036-1049页

作者： Peng, Haoyan Xu, Zhao-Dong Lu, Hongfang Xia, Zhiheng Wang, Xin Wang, Xingwei Liu, Tengfei Dai, Jun China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures Southeast University Nanjing 210096 China School of Resources and Civil Engineering Northeastern University Shenyang 110819 China College of Information Science and Engineering Northeastern University Shenyang 110004 China Key Laboratory of Synthetical Automation for Process Industries Northeastern University Shenyang 110004 China

The safety and stability of the wellbore during geological sequestration of CO2 are of paramount importance. The accumulation of corrosive scale in the casing can result in local stress concentrations and increase the... 详细信息

The safety and stability of the wellbore during geological sequestration of CO₂ are of paramount importance. The accumulation of corrosive scale in the casing can result in local stress concentrations and increase the risk of damage to the cement plug. In this study, the stresses under the concentration-diffusion-controlled corrosion boundary are numerically solved using the boundary element method (BEM) based on the fundamental solution of the displacement boundary. The Mazars damage model was employed to analyze the damage sustained by the cement plugs, and the influence of the diffusion coefficient on this damage was examined across a broad spectrum of values. Ultimately, a predictive formula for the damage height of the cement plugs was proposed, along with a temporal prediction for the complete degradation of the wall. The results indicate that damage occurs more significantly in areas with high bicarbonate concentrations, while damage is often already present in regions with low concentrations. Furthermore, at higher diffusion coefficients, cement plugs sustain complete damage within a few years. In contrast, at lower diffusion coefficients, cement plugs can preserve long-term integrity for hundreds to thousands of years. The numerical stress solution presented in this paper effectively calculates the stress on the cement plug under the casing corrosion boundary. Additionally, the proposed formula for predicting damage height offers a foundation for safety practices and long-term reliability assessments in geological CO₂ sequestration projects. © 2024

关键词： CCS Cement Plug Corrosion Damage Analysis Numerical Stress Solution

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Optical fiber-based surface plasmon resonance sensor for simultaneous measurement of relative humidity and temperature

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Applied Optics 2025年第9期64卷 2261-2268页

作者： Zhang, Qi Chen, Xiaopeng Li, Xinghui Wang, Huifang Zhou, Xue Yan, Xin Cheng, Tonglei State Key Laboratory of Synthetical Automation for Process Industries College of Information Science and Engineering National Frontiers Science Center for Industrial Intelligence and Systems Optimization Northeastern University Shenyang110819 China Department of Mechanical Engineering Politecnico di Milano Milan20156 Italy Foshan Graduate School of Innovation Northeastern University Guangdong Foshan528311 China Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology Qinhuangdao066004 China

In this work, an optical fiber sensor based on surface plasmon resonance (SPR) is proposed for simultaneous measurement of relative humidity (RH) and temperature, which is constructed by connecting two segments of thin-core fibers (TCFs) using a multimode fiber (MMF). The gold film was coated on TCFs to excite the SPR effect. One was further coated with carboxymethyl cellulose (CMC) to sense RH (Channel I), and the other was coated with gold nanoparticles (AuNPs) and polydimethylsiloxane (PDMS) to sense temperature (Channel II). The detection was performed via the resonance wavelength shift induced by the refractive index (RI) change of CMC and PDMS in relation to RH variation and temperature variation, respectively. The incorporation of gold nanoparticles enhances the sensitivity of the SPR sensor and shifts the resonance wavelengths, allowing for more outstanding demarcation of the SPR dip between the two portions inside the equivalent spectrum. Experimental results show that the sensor has an RH sensitivity of −1.053 nm/%RH and a temperature sensitivity of −2.306 nm/◦C. Moreover, the cross-sensitivity issue present in RH and temperature measurements was resolved by introducing a dual-wavelength matrix method. The proposed sensor offers high sensitivity, a simple structure, and ease of manufacturing, making it broadly applicable in fields such as food safety, biotechnology, and manufacturing. © 2025 Optica Publishing Group. All rights, including for text and data mining (TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.

关键词： Gold nanoparticles

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Safety stabilization of switched systems with unstable subsystems

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Control Theory and Technology 2022年第1期20卷 95-102页

作者： Lijun Long Yiguang Hong State Key Laboratory of Synthetical Automation for Process Industries Northeastern UniversityShenyang110819LiaoningChina College of Information Science and Engineering Northeastern UniversityShenyang110819LiaoningChina Department of Control Science and Engineering Tongji UniversityShanghai201804China

This paper is concerned with the problem of safety stabilization for switched systems where the solvability of the problem under study for individual subsystems is not assumed.A new state-dependent switching strategy with guaranteed dwell-time for switched systems is constructed,and a sufficient condition for absence of Zeno behavior is ***,a novel switched control design method is proposed to simultaneously guarantee the safety of the switched closed-loop system and stabilize the system based on the union of a common barrier function and a single Lyapunov function,which effectively handles the conflict between safety and stability ***,two examples are presented to demonstrate the effectiveness of the proposed design approach.

关键词： Safety stabilization Switched systems Common barrier function Single Lyapunov function State-dependent switching

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Extended NNs-Based Adaptive Event-Triggered Asymptotic Control for Nonlinear Systems Against Actuator Faults 7

Extended NNs-Based Adaptive Event-Triggered Asymptotic Contr...

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7th International Symposium on Autonomous Systems, ISAS 2024

作者： Liu, Shanlin Zhang, Yingwei Zhao, Xudong Wang, Hesheng Northeastern University College of Information Science and Engineering Shenyang China Northeastern University State Laboratory of Synthesis Automation of Process Industry Shenyang China Dalian University of Technology Faculty of Electronic Information and Electrical Engineering Dalian China Department of Automation Key Laboratory of System Control and Information Processing of Ministry of Education Key Laboratory of Marine Intelligent Equipment and System of Ministry of Education Shanghai Engineering Research Center of Intelligent Control and Management Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9798350363173

In this article, an adaptive event-triggered asymp¬totically fault-tolerant control (FTC) issue for nonlinear systems with actuator faults is investigated. An extended neural networks (NNs) technique is introduced to estimate unknown functions of the system under consideration. Compared with traditional NNs that ignore approximation errors, the proposed extended NNs further processes approximation errors, reducing the conservatism of the proposed algorithm. Then, within the framework of backstepping method, a new adaptive control strategy is developed by combining event-triggered mechanism (ETM) and bound estimation (BE) approach, which ensures the asymptotic convergence of system states while also reducing the transmission of unnecessary information, thus improving the utilization of communication resources. At the same time, the designed controller eliminates the adverse effects of actuator failures and system nonlinear terms. Finally, a simulation example of a single-link robot system is provided to demonstrate that the developed control strategy can ensure that all signals are bounded and system states are asymptotically convergent. © 2024 IEEE.

关键词： Approximation algorithms

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Stealthy False Data Injection Attacks Against the Summation Detector in Cyber-Physical Systems

IEEE Transactions on Industrial Cyber-Physical Systems

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IEEE Transactions on Industrial Cyber-Physical Systems 2024年 2卷 391-403页

作者： Liu, Yifa Cheng, Long Ye, Dan Chinese Academy of Sciences State Key Laboratory of Multimodal Artificial Intelligence Systems Institute of Automation Beijing100190 China University of Chinese Academy of Sciences School of Artificial Intelligence Beijing100049 China BYD Auto Industry Company Ltd. Shenzhen518118 China Northeastern University College of Information Science and Engineering Shenyang110189 China Northeastern University State Key Laboratory of Synthetical Automation for Process Industries Shenyang110819 China

This article proposes an alternating false data injection attack strategy, which can bypass the summation detector in cyber-physical systems. This attack strategy offsets the impact on historical residuals by constantly changing the attack direction, and therefore invalidates the summation detector integrating historical information to detect the well-designed stealthy attacks. In the simulation, the proposed attack strategy reduces the increment of cumulative summation of residuals by 70% compared to the classical stealthy attack strategy, and bypasses both the χ2} detector and the summation detector. Furthermore, from a more general perspective, by proposing an almost completely stealthy attack strategy to make the residual information almost unchanged, this article proves that residual based detection methods regardless of single-step residual based ones nor historical residual based ones cannot fully detect false data injection attacks. © 2023 IEEE.

关键词： Cyber attacks

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NeuroVI-based snow ruts and drivable area detection on snow-covered road 5

NeuroVI-based snow ruts and drivable area detection on snow-...

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5th International Conference on Artificial Intelligence and Computer Science, AICS 2023

作者： Liu, Xiangyong Yin, Fengfeng Zhuo, Guirong Yang, Zhixin Jiang, Wei College of Automotive Studies Tongji University Shanghai201804 China State Key Laboratory of Process Automation in Mining & Metallurgy Beijing Key Laboratory of Process Automation in Mining & Metallurgy Bgrimm Technology Group Beijing100160 China Department of Electromechanical Engineering University of Macau 999078 China Linyi Engineering Branch China Railway Jinan Group Co. Ltd. Shandong Linyi276000 China

ISBN: (纸本)9781510668621

Detection of safe driving areas on the road surface is a necessary prerequisite for path planning in snow-covered scenarios. The snow rut trajectory of snow-covered roads can provide the consultation of safe zones’ detection. This study proposed to use a Neuromorphic vision (NeuroVI) sensor to detect snow ruts and predict the safe driving area. We establish an image clustering method based on NeuroVI event points’ thickness and make a rut dataset under snow scenes. This dataset not only includes the recognition of optimal safe ruts but also includes adjacent boundary points and remote preview points. Then, a feature fusion model with a detection head is designed to output the recognition results, which can provide the safe zones’ position in snow-covered autonomous driving. © 2023 SPIE.

关键词： Snow

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Command Filtered Finite/Fixed-time Heading Tracking Control of Surface Vehicles

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IEEE/CAA Journal of Automatica Sinica 2021年第10期8卷 1667-1676页

作者： Zhenyu Gao Ge Guo School of Control Engineering Northeastern University QinhuangdaoQinhuangdao 066004China State Key Laboratory of Synthetical Automation for Process Industries Northeastern UniversityShenyang 110819

This paper investigates the heading tracking problem of surface vehicles with unknown model *** on finite/fixed-time control theories and in the context of command filtered control,two novel adaptive control laws are developed by which the vehicle can track the desired heading within settling time with all signals of the closed-loop system are uniformly *** effectiveness and performance of the schemes are demonstrated by simulations and comparison studies.

关键词： Command filter finite-time control fixed-time control heading tracking control surface vehicles

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