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作者： Bai, Ting Johansson, Alexander Li, Shaoyuan Johansson, Karl Henrik Mårtensson, Jonas School of Electrical Engineering and Computer Science KTH Royal Institute of Technology Stockholm Sweden KTH Royal Institute of Technology Stockholm Sweden Department of Automation Shanghai Jiao Tong University Shanghai China Key Laboratory of System Control and Information Processing Shanghai Jiao Tong University Shanghai China Digital Futures Stockholm Sweden

This paper models a platooning system consisting of trucks and a third-party service provider (TPSP), which performs platoon coordination, distributes the platooning profit in platoons, and charges trucks in exchange for the services. Government subsidies used to incentivize platooning are also considered. We propose a pricing rule for the TPSP, which keeps part of the platooning profit including the subsidy each time a platoon is formed. In addition, a platoon coordination solution based on the distributed model predictive control (MPC) is proposed, in which the pricing rule under government subsidies is integrated. We perform a realistic simulation over the Swedish road network to evaluate the impact of the pricing rule and subsidies on the achieved profits and fuel savings. Our results show that subsidies are an effective mean to boost fuel savings from platooning. Moreover, the simulation study indicates that high pricing corresponds to a low platooning rate of the system, as trucks' incentives for platooning decrease. © 2023 The Authors. Asian Journal of control published by John Wiley & Sons Australia, Ltd on behalf of Chinese Automatic control Society.

关键词： Trucks

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Flexible Manufacturing Concept at Bosch: A low-cost implementation of an Industry 4.0 concept 19

Flexible Manufacturing Concept at Bosch: A low-cost implemen...

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19th IMEKO TC10 Conference on MACRO meets NANO in Measurement for Diagnostics, Optimization and control

作者： Fükő, László Szaller, Ádám Colangelo, Eduardo Nick, Gábor Kádár, Botond Bosch Power Tool Ltd. Miskolc3526 Hungary Institute for Computer Science and Control Budapest1111 Hungary Fraunhofer Institute for Manufacturing Engineering and Automation IPA Stuttgart70569 Germany EPIC InnoLabs Nonprofit Ltd. Budapest1111 Hungary

ISBN: (纸本)9781713884125

Nowadays production companies are in a difficult situation since batch sizes are decreasing, the number of product variants is growing, and the demand is difficult to forecast. New technologies enable to design more complex production systems capable of handling these challenges, but these "Industry 4.0 solutions" are often very expensive and hard to implement. In Bosch Power Tool Ltd. (Hungary), a flexible manufacturing concept was implemented, which enables to produce efficiently even with batch size one, requires much less space from the shop floor, prevents disruptions in production, and last but not least realized in from a relatively small budget. The concept introduced in this paper can be used as a best practice for manufacturing companies facing similar challenges. © 2023 19th IMEKO TC10 Conference "MACRO meets NANO in Measurement for Diagnostics, Optimization and control".

关键词： flexible manufacturing Industry 4.0 smart manufacturing

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Integrating photovoltaic systems into HVAC control using fuzzy algorithms for optimizing thermal comfort

Integrating photovoltaic systems into HVAC control using fuz...

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International Symposium for Design and Technology of Electronics Packages (SIITME)

作者： Mihaela-Gabriela Boicu Marius-Alexandru Dobrea Mihaela Vasluianu Gabriela-Valentina Olteanu Giorgian Neculoiu Faculty of Automatic Control and Computer Science University POLITEHNICA of Bucharest Bucharest Romania Faculty of Hidrotechnics Technical University of Civil Engineering of Bucharest Bucharest Romania

ISBN: (数字)9798331539511

ISBN: (纸本)9798331539528

This article presents a study on the use of photovoltaic panels for storing electrical energy intended to power an HVAC unit placed in a residential room. To highlight this aspect, two specific scenarios will be considered. Thus, we aim to analyze whether the generated and stored energy is sufficient to fulfil the thermal comfort requirements of the user, while also considering the primary objective of minimizing energy consumption. To achieve this goal, the HVAC unit will be controlled by implementing a fuzzy system that determines its optimal activation based on the comfort level obtained from the user. The fuzzy system presents as inputs both environmental parameters and specific personal perception parameters of the user. The research results provide an insight into the efficiency of implementing photovoltaic energy storage systems for residential applications and propose solutions for optimizing energy consumption in the context of ensuring adequate thermal comfort. Thus, the study contributes to the development of sustainable and personalized energy solutions for smart homes.

关键词： Photovoltaic systems Fuzzy logic Energy consumption HVAC Electronic packaging thermal management control systems Ventilation Thermal analysis Fuzzy systems Energy storage

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Self-Tuning Tube-based Model Predictive control

Self-Tuning Tube-based Model Predictive Control

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American control Conference (ACC)

作者： Damianos Tranos Alessio Russo Alexandre Proutiere Division of Decision and Control Systems School of Electrical Engineering and Computer Science Royal Institute of Technology (KTH) Stockholm Sweden

We present Self-Tuning Tube-based Model Predictive control (STT-MPC), an adaptive robust control algorithm for uncertain linear systems with additive disturbances based on the least-squares estimator and polytopic tubes. Our algorithm leverages concentration results to bound the system uncertainty set with prescribed confidence, and guarantees robust constraint satisfaction for this set, along with recursive feasibility and input-to-state stability. Persistence of excitation is ensured without compromising the algorithm’s asymptotic performance or increasing its computational complexity. We demonstrate the performance of our algorithm using numerical experiments.

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Weighted syncmer sampling improves long-read mapping

Weighted syncmer sampling improves long-read mapping

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IEEE International Conference on Bioinformatics and Biomedicine (BIBM)

作者： Wei Quan Jinjun Kang Yanfei Deng Zhuang Liu Xiao Zhu Guangri Quan School of Computer and Control Engineering Yantai University Yantai China School of Information and Network Security Xinjiang University of Political Science and Law Tumxuk China

ISBN: (数字)9798350386226

ISBN: (纸本)9798350386233

Syncmers represent a novel class of methods for selecting k-mers that exhibit robustness against mutations in flanking sequences and demonstrate superior conservation in mutated sequences. Nevertheless, syncmers may generate a higher frequency of repetitive seed matches compared to alternative techniques, such as minimizers, which can result in increased computational time. In this article, we introduce weighted minimizer sampling, which integrates weighted minimizer sampling and syncmer sampling to enhance the sensitivity and accuracy of long-read mapping. We modified two state-of-the-art long-read mappers, Minimap2 and Winnowmap, by substituting the sketching sampling methods with weighted minimizer sampling. We assessed their sensitivity and accuracy using simulated and real datasets. The experimental results indicate that weighted minimizer sampling significantly improves the sensitivity and accuracy of long-read mapping. The source code is available at GitHub: https://***/hexinkaoan/weighted-syncmer.

关键词： Hash functions Time-frequency analysis Sequential analysis Sensitivity Accuracy Source coding Sampling methods Robustness Bioinformatics Software development management

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Reinforcement Learning-Based Output Stabilization control for Nonlinear Systems With Generalized Disturbances

Reinforcement Learning-Based Output Stabilization Control fo...

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IEEE International Conference on Industrial Technology (ICIT)

作者： Zezhi Tang J Anthony Rossiter Yi Dong George Panoutsos Department of Automatic Control and Systems Engineering University of Sheffield Sheffield United Kingdom Department of Electronics and Computer Science University of Southampton Southampton United Kingdom

ISBN: (数字)9798350340266

ISBN: (纸本)9798350340273

This paper proposes a new disturbance observer (DO)-based reinforcement learning (RL) control approach for nonlinear systems with unmatched (generalized) disturbances. While a nonlinear disturbance observer (NDO) is utilized to measure the plant uncertainties, disturbances can exist in the plant via distinct channels from those of the control signals; so-called mismatched disturbances are theoretically difficult to attenuate within the channel of the system's states. A generalized disturbance observer-based compensator is implemented to address the uncertainty cancellation problem by removing the influence of uncertainties from the output channels. Con-currently, a composite actor-critic RL scheme is utilized for approximating the optimal control policy as well as the ideal value function pertaining to the compensated system by solving a Hamilton-Jacobi-Bellman (HJB) equation for both online and offline iterations simultaneously. Stability analysis verifies the convergence of the proposed framework. Simulation results are included to illustrate the effectiveness of the proposed scheme.

关键词： Uncertainty Simulation Measurement uncertainty Optimal control Estimation Reinforcement learning Disturbance observers

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An Algorithm for Detecting Artifacts in Video Recordings of Long-Term Video-EEG Monitoring Data for the Diagnostics of Delayed Cerebral Ischemia 9

An Algorithm for Detecting Artifacts in Video Recordings of ...

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9th IEEE International Conference on Information Technology and Nanotechnology, ITNT 2023

作者： Murashov, Dmitry Obukhov, Yury Kershner, Ivan Sinkin, Mikhail Federal Research Center "computer Science and Control" Russian Academy of Sciences Moscow Russia Kotel'Nikov Institute of Radio Engineering and Electronics Russian Academy of Sciences Moscow Russia Sklifosovsky Research Institute for Emergency Medicine Moscow Healthcare Department Moscow Russia

ISBN: (纸本)9798350397338

In this paper, we propose an algorithm for detecting artifacts in long-term video-EEG monitoring data in the problem of diagnosing cerebral ischemia after subarachnoid hemorrhage. The algorithm is based on a threshold detector using the smoothed optical flow value. The optical flow is calculated from the video frames of long-term video-EEG monitoring. We conducted a computational experiment that showed the following: (a) artifacts are detected with accuracy acceptable for diagnosing cerebral ischemia during synchronous analysis of video data and EEG signals;(b) artifacts can be detected in real time. © 2023 IEEE.

关键词： Optical flows

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Examining and Explaining Individual Fairness in Dynamic Pricing

Examining and Explaining Individual Fairness in Dynamic Pric...

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International Conference on Data engineering Workshops

作者： Wei Guo Yan Lyu Xueyong Xu Weiwei Wu School of Computer Science and Engineering Southeast University Nanjing China North Information Control Research Academy Group Co. Ltd Nanjing China

ISBN: (数字)9798350384031

ISBN: (纸本)9798350384048

Dynamic pricing has become a prevalent strategy for balancing supply and demand in urban sharing economy platforms such as Uber and Airbnb. The dynamic pricing algorithms, however, are black-boxes and have encountered issues of discrimination. While existing studies have focused on group fairness within these algorithms, limited attention has been paid to individual fairness. The key challenge is in quantifying individual similarity within temporal-spatial dimensions and the inaccessibility of the algorithms. We propose a novel framework to assess and explain individual fairness of dynamic pricing algorithms. We define individual fairness by measuring individual similarity on latent temporal-spatial representation learned from relevant downstream tasks. We also introduce a triplet loss as a fairness constraint for fair representation. As the dynamic pricing algorithms are inaccessible, we proposed a sampling based Cohort Shapley explanation method to explain the discriminatory instances. We conduct experiments on datasets from both Uber ride-sharing and Airbnb pricing platforms. Our experimental results demonstrate that our proposed triplet loss approach strikes a balance between fairness and downstream task performance. Our case study illustrates that the proposed explanation method provides reasonable and clear explanations for instances of individual unfairness.

关键词： Supply and demand Heuristic algorithms Conferences Pricing Sharing economy Data engineering Task analysis

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Low-Complexity control for a Class of Uncertain MIMO Nonlinear Systems under Generalized Time-Varying Output Constraints

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IEEE Transactions on Automatic control 2024年

作者： Mehdifar, Farhad Lindemann, Lars Bechlioulis, Charalampos P. Dimarogonas, Dimos V. The Division of Decision and Control Systems KTH Royal Institute of Technology Stockholm Sweden Department of Computer Science University of Southern California Los AngelesCA United States The Department of Electrical and Computer Engineering University of Patras Patra Greece

This paper introduces a novel control framework to address the satisfaction of multiple time-varying output constraints in uncertain high-order MIMO nonlinear control systems. Unlike existing methods, which often assume that the constraints are always decoupled and feasible, our approach can handle coupled time-varying constraints even in the presence of potential infeasibilities. First, it is shown that satisfying multiple constraints essentially boils down to ensuring the positivity of a scalar variable, representing the signed distance from the boundary of the time-varying output-constrained set. To achieve this, a single consolidating constraint is designed that, when satisfied, guarantees convergence to and invariance of the time-varying output-constrained set within a user-defined finite time. Next, a novel robust and low-complexity feedback controller is proposed to ensure the satisfaction of the consolidating constraint. Additionally, we provide a mechanism for online modification of the consolidating constraint to find a least violating solution when the constraints become mutually infeasible for some time. Finally, a simulation study validates the proposed approach. ©1963-2012 IEEE.

关键词： MIMO systems

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Modular Redesign of Mechatronic Systems: Formulation of Module Specifications Guaranteeing System Dynamics Specifications

arXiv

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arXiv 2024年

作者： Janssen, Lars A.L. Fey, Rob H.B. Besselink, Bart van de Wouw, Nathan Dynamics & Control Department of Mechanical Engineering Eindhoven University of Technology Netherlands Bernoulli Institute for Mathematics Computer Science and Artificial Intelligence University of Groningen Netherlands

Complex mechatronic systems are typically composed of interconnected modules, often developed by independent teams. This development process challenges the verification of system specifications before all modules are integrated. To address this challenge, a modular redesign framework is proposed in this paper. Herein, first, allowed changes in the dynamics (represented by frequency response functions (FRFs)) of the redesigned system are defined with respect to the original system model, which already satisfies system specifications. Second, these allowed changes in the overall system dynamics (or system redesign specifications) are automatically translated to dynamics (FRF) specifications on module level that, when satisfied, guarantee overall system dynamics (FRF) specifications. This modularity in specification management supports local analysis and verification of module design changes, enabling design teams to work in parallel without the need to iteratively rebuild the system model to check fulfilment of system FRF specifications. A modular redesign process results that shortens time-to-market and decreases redesign costs. The framework’s effectiveness is demonstrated through three examples of increasing complexity, highlighting its potential to enable modular mechatronic system (re)design. © 2024, CC BY-NC-ND.

关键词： Specifications

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