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A Proposal for A human-in-the-loop Daylight control system-Preliminary Experimental Results

ENERGIES 2024年第3期17卷 544页

作者： de Rubeis, Tullio Ragnoli, Mattia Leoni, Alfiero Ambrosini, Dario Stornelli, Vincenzo Univ Laquila Dept Civil Construct Architectural & Environm Engn I-67100 Laquila Italy Univ Laquila Dept Ind & Informat Engn & Econ DIIIE I-67100 Laquila Italy Univ Laquila Design Methodol Embedded Controllers Wireless Interconnect & Syst Onchip DEWS I-67100 Laquila Italy

Appropriate daylight control could maximize occupants' visual comfort, potentially saving energy. However, the deployment of daylight control systems (DLCSs) is not happening, mainly due to the complex system calibration and the frequent reluctance of occupants toward automatic control systems that exclude their participation. In this paper, a human-in-the-loop DLCS is presented. The system is designed to allow the users to have direct interaction via smartphone Bluetooth communication, enabling them to set the lighting values deemed most comfortable nimbly. Special attention has been paid to the power consumption of the DLCS, especially in standby mode. Accessibility of configuration has been taken into consideration, leading to the choice of a wireless configured device. The performance of the prototype DLCS was evaluated experimentally in a side-lit room and compared with that of a commercial controller. The illuminance on a reference work plane was measured during the operation of the systems to observe the controllers' effect on the lamp's luminous flux while simultaneously considering the variation of daylight conditions. Moreover, the energy performance of the systems was studied to obtain information about the energetic effectiveness and convenience of the studied DLCSs. The main results showed that the proposed system could maintain the required target illuminance values on the work plane as daylight conditions vary: the maximum deviation measured using the prototype never exceeded 11 lx. In comparison, the commercial controller reached peaks of 220 lx. Moreover, the energy consumption of the prototype (resulting equal to 370 mVA) was lower than the consumption of the commercial system (equal to 600 mVA), allowing for increased energy savings over the long period. The more straightforward configuration allows the user to better interact with the DLCS.

关键词： daylight control system daylight harvesting energy savings human-in-the-loop control system illuminance measurements

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Stability and H ,,, performance of human-in-the-loop control systems through hidden semi-Markov human behavior modeling

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APPLIED MATHEMATICAL MODELLING 2023年 116卷 799-815页

作者： Liu, Yang-Fan Wu, Huai-Ning Zhang, Xiu-Mei Beihang Univ Sch Automat Sci & Elect Engn Sci & Technol Aircraft Control Lab Beijing 100191 Peoples R China Peng Cheng Lab Shenzhen 518000 Peoples R China Weifang Univ Sch Machinery & Automat Weifang 261061 Peoples R China

In this paper, a stochastic framework of analysis and synthesis is proposed for the stabil-ity and H ,,, performance of linear human-in-the-loop (HiTL) control systems which involve both human's discrete internal states and machine's continuous-time dynamics. Initially, a hidden semi-Markov model (HS-MM) is used for the human behavior modeling, which takes into account the random nature of human internal state (HIS) reasoning and the so-journ time of HIS, as well as the uncertainty from HIS observation. Subsequently, by inte-grating human model, machine model, and their interaction, a hidden semi-Markov jump system (HS-MJS) model is constructed to describe the HiTL control system. By the tools of stochastic Lyapunov functional and linear matrix inequalities (LMIs), a sufficient and nec-essary condition for the stochastic stability of the HiTL control system via state feedback is then given on the basis of the HS-MJS model. Besides, an LMI-based human-assistance stabilizing control design is developed. For the prescribed disturbance attenuation level, a human-assistance H ,,, controller synthesis method of the HiTL control system is proposed in terms of LMIs. Finally, the developed theoretical results are applied to the steering con-trol of the lane-keeping assistance system.(c) 2022 Elsevier Inc. All rights reserved.

关键词： human-in-the-loop control system Hidden semi-Markov model Linear matrix inequalities (LMIs) Stochastic stability H ? performance

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Reachable Set Estimation of a class of human-in-the-loop control systems 40

Reachable Set Estimation of a class of Human-in-the-Loop Con...

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40th Chinese control Conference (CCC)

作者： Zhang, Xiu-Mei Wu, Huai-Ning Beihang Univ Sch Automat Sci & Elect Engn Sci & Technol Aircraft Control Lab Beijing 100191 Peoples R China Peng Cheng Lab Shenzhen 518000 Peoples R China

ISBN: (纸本)9789881563804

This paper studies the reachable set estimation problem of a class of human-in-the-loop (HiTL) control systems described by a controlled hidden Markov jump model. Our aim is to determine an ellipsoid-like set which bounds all the machine state trajectories of the HiTL system under zero initial condition. By using a stochastic Lyapunov functional, a reachable set estimation condition is established, which is provided in terms of a set of matrix inequalities. Finally, an example is given to show the effectiveness of the proposed result.

关键词： human-in-the-loop control system Markov jump system reachable set estimation stochastic Lyapunov functional

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Reachable Set Estimation of a class of human-in-the-loop control systems

Reachable Set Estimation of a class of Human-in-the-Loop Con...

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第40届中国控制会议

作者： Xiu-Mei Zhang Huai-Ning Wu Science and Technology on Aircraft Control Laboratory School of Automation Science and Electrical EngineeringBeihang University

This paper studies the reachable set estimation problem of a class of human-in-the-loop（Hi TL） control systems described by a controlled hidden Markov jump model. Our aim is to determine an ellipsoid-like set which bounds all the machine state trajectories of the Hi TL system under zero initial condition. By using a stochastic Lyapunov functional, a reachable set estimation condition is established, which is provided in terms of a set of matrix inequalities. Finally, an example is given to show the effectiveness of the proposed result.

关键词： human-in-the-loop control system Markov jump system reachable set estimation stochastic Lyapunov functional

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