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design and Implementation of Intelligent Home control system Based on Deep Learning in the Internet of Things Environment

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Procedia Computer Science 2023年 228卷 455-463页

作者： Tian Liang Mei Wang Yiru Zhang Fengju Bu School of Information Science and Engineering Shandong Agriculture and Engineering University Jinan 250100 Shandong China Jinan Intellectual Property Protection Centre Jinan 250100 Shandong China

The popularization of the Internet of Things has made our daily life more and more convenient. By using the Internet of Things, we can create an intelligent home control system that makes our rooms safer, more comfortable, and can meet our growing demand for items. This article discusses how to use the Internet of Things to improve the efficiency of smart homes, and focuses on how to use wireless sensor networks, embedded systems, and various technologies such as network communication, audio and video to achieve these goals. This can enable these intelligent home control systems to provide efficient services. This article also introduces how to use Internet of Things technology in the design process of home control systems to better handle wiring and other related issues. We will also explore the differences between traditional and smart homes. The results showed that four buyers rated the smart home system, with an average score of 4 before use indicating a lower score, and an average score of 9 after use indicating a higher score.

关键词： Smart Home Nternet of Things control system design Intelligent control

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design of control system for Atmospheric Dispersion Correctors based on UMAC

Design of Control System for Atmospheric Dispersion Correcto...

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Conference on AOPC - Novel Technologies and Instruments for Astronomical Multi-Band Observations

作者： Xu Jin Kou Songfeng Yue Zhongyu Gu Bozhong Yang Shihai Chinese Acad Sci Nanjing Inst Astron Opt & Technol Natl Astron Observ Nanjing 210042 Peoples R China Nanjing Inst Astron Opt & Technol CAS Key Lab Astron Opt & Technol Nanjing 210042 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

ISBN: (数字)9781510650145

ISBN: (纸本)9781510650145;9781510650138

Atmospheric dispersion has a great impact on high-precision astronomical observation. This paper studies the influence of atmospheric dispersion on the imaging system of large aperture astronomical telescope, and the UMAC-based atmospheric dispersion correctors (ADC) control system is designed. According to the data of zenith distance, temperature, humidity and air pressure, the influence of atmospheric dispersion on the imaging system of the telescope is calculated through the theoretical model of atmospheric refraction. The results show that when the zenith distance is greater than 24.83 degrees, the influence of atmospheric dispersion has exceeded 0.3 '', that is the requirement of telescope imaging system. So it is necessary to correct the influence of atmospheric dispersion. ADC adopts the structure of two relative rotation glued prisms. The larger the zenith distance is, the higher the requirement of the relative angle control accuracy of the two glued prisms is. According to the results of optical calculations, when the relative rotation accuracy of the two glued prisms is less than 6 '', it can meet the imaging quality requirements of the telescope. According to that, the control system of ADC is designed. The rotation control of atmospheric dispersion correction mechanism adopts two-stage reduction mechanism, the first stage is reduction box, the second stage is reduction gear, and the total reduction ratio is 600:1. In order to realize the synchronous control of the two glued prisms, UMAC is used as the main controller, two servo motors are used to drive the rotation of the two glued prisms, and Renishaw encoder is used as the position feedback for position closed-loop control. The peak-to-peak control accuracy of the relative rotation angle of the control system is less than 20 '', which meets the control accuracy requirements of the ADC.

关键词： Astronomical Telescope Atmospheric Dispersion Atmospheric Dispersion Correctors control system design

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Centralized P/PI control system design based on equivalent transfer functions for unstable TITO process 9

Centralized P/PI control system design based on equivalent t...

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9th Int Conf Ind Information Syst (ICIIS2014)

作者： Besta, Chandra Shekar Chidambaram, M. Indian Inst Technol Dept Chem Engn Madras 600036 Tamil Nadu India

ISBN: (纸本)9781479964994

Established equivalent transfer function (ETF) matrix method for stable MIMO systems is extended to unstable systems to design multivariable proportional and integral (PI) controllers. The simplified decoupler decomposes the unstable multi-loop systems into independent loops with ETFs as the resultant decoupled process model having unstable poles. Single loop PI controllers are designed by the synthesis method based on the unstable ETFs. Since the overshoot is higher for the unstable systems, a double- loop structure is used to reduce the overshoot. To stabilize the unstable system, inner loop P controllers are designed for the diagonal elements of ETFs by the synthesis method. Further, for the stabilized innerloop system, diagonal PI controllers are designed based on the identified simple First order plus time-delay (FOPTD) model. Simulation results show that the designed control system gives a better performance than that reported in literature.

关键词： MIMO systems PI control centralised control control system synthesis delays multivariable control systems transfer functions ETF matrix method FOPTD model TITO process centralized P-PI control system design control system design decoupled process model diagonal PI controllers double-loop structure equivalent transfer function matrix method first order plus time-delay model inner loop P controllers multiloop systems multivariable proportional-integral controllers single loop PI controllers Arrays control systems Delay effects Equations Mathematical model Process control Transfer functions TRANSFER FUNCTIONS PI control control systems design Multivariable control systems INTEGRATED SHIP control control systems multiple input multiple output systems Delay effects control system synthesis Process control Mathematical Model Unstable

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design and Implementation of DMS control system for Dam Defects Inspection and Identification

Design and Implementation of DMS Control System for Dam Defe...

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Chinese Automation Congress (CAC)

作者： Lan, Ying Hu, Zhen Shen, Dan Wang, Lei Yang, Shenshen China Ship Sci Res Ctr State Key Lab Deep Sea Manned Vehicles Wuxi 214082 Jiangsu Peoples R China

ISBN: (纸本)9781728176871

Numerous dams have been in service for more than thirty years and are gradually aging. Many of them are defective and risky dams. To detect defects on the dam surface, obtain intuitive and reliable information, and evaluate the safety of the dams in real-time, the "Yulong" Dam Maintenance Submersible (DMS) has been designed and built. This operating platform is not limited by the season and can inspect deep-water dams while obtaining High-definition video data of suspicious leakage points and other defects. By carrying technicians on-site to identify defects, grasp the underwater situation of the dam in real-time, and obtain timely and comprehensive information on the dam surface. The DMS is a complicated system that puts harsh requirements on the control system. The engineering application results show that the control system that we designed and implemented is stable, reliable, and highly accurate, and can effectively complete underwater inspection and operation tasks, thereby ensuring the safe operation of the deepwater dams.

关键词： Dam safety Defects identification Manned Submersible control system design

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control system design and evaluation for robust autonomous rotorcraft guidance

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control ENGINEERING PRACTICE 2013年第11期21卷 1488-1506页

作者： Dadkhah, Navid Mettler, Berenice Univ Minnesota Dept Aerosp Engn & Mech Interact Guidance & Control Lab Minneapolis MN 55455 USA

This paper describes the design and performance analysis of a control system for rotorcraft with an emphasis on the requirements called for by autonomous guidance. To be able to track trajectories, such as those generated by a guidance system, a path following controller is used in combination with a velocity control augmentation. The path following system is motivated by nonlinear stability analysis. The velocity control augmentation follows a loop-shaping design for the inner-loop attitude control and a dynamic inversion velocity control design for the outer-loop. The identified model of the dynamics along with the uncertainties is used to determine the robustness and performance of the velocity control system. Finally, the paper presents a novel method to evaluate the overall performance of the control system in terms of the tracking error statistics. These results are then used to determine a tracking error model, which can be used to predict the tracking error for a given reference. (C) 2013 Elsevier Ltd. All rights reserved.

关键词： control system design Experimental evaluation Rotorcraft UAV Guidance application

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Optimal design of Smart Mid-Story Isolated control system for a High-Rise Building

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INTERNATIONAL JOURNAL OF STEEL STRUCTURES 2019年第6期19卷 1988-1995页

作者： Kim, Hyun-Su Kang, Joo-Won Sunmoon Univ Div Architecture Architectural & Civil Engn Asan South Korea Yeungnam Univ Sch Architecture Gyongsan South Korea

Mid-story isolation systems have previously been studied for decrease of the earthquake induced responses of high-rise buildings. The systems have been successfully applied to several buildings in Korea and Japan. Structural designers usually have to ensure that both the peak story and isolator drifts are within permissible limits. However, these two objectives conflict with each other. To solve this problem, a smart mid-story isolation system can be used for tall buildings. The system is composed of rubber bearings and magnetorheological (MR) dampers. The system was employed for an existing structure to reduce both the isolator and story drift. The control efficiency of smart mid-story isolator was evaluated based on a passive system. An artificial seismic load was made for numerical analyses for both systems. A fuzzy soft-computing technique with a multi-objective optimization was adopted to make control algorithm for decrease of both the inter-story and isolator drift. A numerical analysis results presents that the proposed method can effectively decrease the seismic-induced inter-story and isolator drift in the example of a tall building.

关键词： Smart mid-story isolation system control system design Soft-computing technique Seismic response reduction Vibration control

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design and implementation of automatic control for a condensation-induced depressurization system

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PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF systemS AND control ENGINEERING 2019年第9期233卷 1146-1158页

作者： Du, Fen Zhang, Bo Zhu, Chao Ji, Zhiming Lin, Chao-Hsin New Jersey Inst Technol Dept Mech & Ind Engn Newark NJ 07102 USA Vermont Tech Coll Dept Mech Engn Technol Randolph VT USA Boeing Commercial Airplanes Environm Control Syst Seattle WA USA

This study develops a control system to automate the operation of a condensation-induced depressurization technology, which is used to achieve sub-atmospheric pressure in an open-flow system on ground. The continuous depressurization is maintained via an integrated series of chambers inside which vacuum is regenerated by condensing and refilling of saturated steam. The low pressure generated inside the chambers is then used to alternatively extract the air out of a flow system for maintaining its sub-atmospheric pressure. The thermodynamic cycle in such a vacuum chamber consists of three sub-processes: air purging to ambient by steam refilling, depressurization by steam condensation, and air-extraction from a flow application. As one chamber undergoing these consecutive processes, another chamber operates in a coordinated different phase to seamlessly maintain a continuous air-extraction operation. This new system provides a quiet and efficient way of using low-grade energy to generate hypobaric environment for needed applications. A cascade arrangement of a proposed multiple-chamber operation is also illustrated. A control system is designed and implemented to realize the automatic and coordinated operation in a dual-chamber, laboratory-scaled system. Exemplified results on process characteristics such as chamber depressurization and air purging are also provided.

关键词： Vacuum-driving flow depressurization steam purging condensation control system design control system implementation

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Study on control characteristics of a nuclear power plant with coupled heat-pipe reactor and sCO2 Brayton cycle

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NUCLEAR ENGINEERING AND design 2025年 432卷

作者： Jiang, Qingfeng Li, Jiawen Wang, Pengfei Xi An Jiao Tong Univ Shaanxi Engn Res Ctr Adv Nucl Energy Shaanxi Key Lab Adv Nucl Energy & Technol Xian 710049 Peoples R China

The nuclear power plant (NPP) with coupled heat-pipe reactor and sCO(2) Brayton cycle has attracted widespread interest since proposed for its significant advantages in terms of inherent safety and excellent operational performances. Nevertheless, its compact structure and flexible operating characteristics put forward much higher requirements on control systems than traditional NPPs. Given that there is a lack of well-developed control strategy and control systems for the NPP, the paper conducts systematic studies on its control strategy and control systems. Mathematical models of the NPP were established first with their steady-state accuracies verified. Then, a control strategy of the NPP was proposed with corresponding control systems designed according to the operating principles. Finally, control performances of the NPP were assessed against typical step and ramp load change transients through dynamic simulations. The results show that the designed control systems enable excellent control performances of the NPP with the short settling times and small change magnitude during transient operations. This demonstrates the feasibility of the proposed control strategy and good performances of the designed control systems for the NPP. The study can provide a valuable reference for the control design of the NPP with coupled heat-pipe reactor and sCO(2) Brayton cycle.

关键词： Heat-pipe reactor sCO(2) Brayton cycle control system design control characteristics analyze

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Sparse Flow Sensor Placement Optimization for Flight-by-Feel control of 2D Airfoils

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AIAA JOURNAL 2024年第10期62卷 3803-3812页

作者： Hollenbeck, Alex C. Grandhi, Ramana Hansen, John H. Pankonien, Alexander M. US Air Force Dept Aeronaut & Astronaut Inst Technol Wright Patterson AFB OH 45433 USA US Air Force Aerosp Syst Directorate Res Lab Wright Patterson AFB OH 45433 USA

This research introduces the Sparse Sensor Placement Optimization for Prediction algorithm and explores its use in bioinspired flight-by-feel control system design. Flying animals have velocity-sensing structures on their wings and are capable of highly agile flight in unsteady conditions, a proof-of-concept that artificial flight-by-feel control systems may be effective. Constrained by size, weight, and power, a flight-by-feel sensory system should have the fewest optimally placed sensors which capture enough information to predict the flight state. Flow datasets, such as from computational fluid dynamics, are discrete, often highly discontinuous, and ill-suited for conventional sensor placement optimization techniques. The data-driven Sparse Sensor Placement Optimization for Prediction approach reduces high-dimensional flow data to a low-dimensional sparse approximation containing nearly all of the original information, thereby identifying a near-optimal placement for any number of sensors. For two or more airflow velocity magnitude sensors, this algorithm finds a placement solution (design point) which predicts angle of attack of airfoils to within 0.10 degrees and ranks within the top 1% of all possible design points validated by combinatorial search. The scalability and adaptability of this algorithm is demonstrated on several 2D model variations in clean and noisy data, and model sensitivities are evaluated and compared against conventional optimization techniques. Applications for this sensor placement algorithm are explored for aircraft design, flight control, and beyond.

关键词： Tactile Sensors Aircraft Flight control system Aerodynamic Performance control system design Aircraft design Computational Fluid Dynamics Algorithms and Data Structures Optimization Algorithm Bio Inspired Aircraft

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design Methodology for Optimized control of High-Power Quadratic Buck Converters Using Sliding Mode and Hybrid controllers

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IEEE ACCESS 2025年 13卷 49416-49432页

作者： Acosta-Rodriguez, Rafael Antonio Martinez-Sarmiento, Fredy Hernan Munoz-Hernandez, German Ardul Univ Nacl Colombia ARMOS Res Grp Elect Machines & Drives Grp EM&D Bogota 111321 Colombia Univ Dist Francisco Jose de Caldas ARMOS Res Grp Bogota 110231 Colombia Meritorious Autonomous Univ Puebla BUAP Dept Elect Sci Puebla De Zaragoza 72592 Mexico

This paper introduces a novel design methodology for optimizing the control of high-power quadratic Buck converters using a Sliding Mode controller (SMC). The proposed methodology focuses on addressing the non-linearities and dynamic challenges inherent in such converters, offering a systematic approach to controller design that enhances both stability and efficiency. The SMC is rigorously validated through dual rapid prototyping methods, Hardware-in-the-Loop (HIL) and Software-in-the-Loop (SIL), to ensure robust performance across diverse operating conditions. Additionally, a hybrid control strategy is explored, integrating traditional PID control with the SMC to leverage the strengths of both approaches. A comprehensive stability analysis, including root-locus diagrams, further confirms the reliability of the proposed controller. Comparative analysis against conventional PID control demonstrates the superiority of the SMC, particularly in managing complex operational scenarios. This work provides a significant advancement in the control of quadratic Buck converters, offering a comprehensive framework for implementing reliable and efficient control strategies, and paving the way for future applications in high-power systems.

关键词： Buck converters Stability analysis Robustness PI control PD control Actuators Voltage control Sliding mode control Power system stability design methodology control system design hardware-in-the-loop (HIL) high-power converters quadratic buck converter (QBC) sliding mode control (SMC) software-in-the-loop (SIL)

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