Feedback Control System
Mostrando 1-12 de 210 artigos, teses e dissertações.
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1. BIM+Lean for integrating production and quality control at the construction site
Resumo As atividades de controle de produção e qualidade realizadas no canteiro de obras são baseadas em procedimentos manuais ou em diferentes tecnologias de coleta automática de dados. Um grande problema é esses controles são muitas vezes aplicados de forma isolada. Existem oportunidades para melhorar o desempenho das obras, integrando sistemas de co
Ambiente Construído. Publicado em: 2022
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2. Desenvolvimento de software e interface para o controle por retroalimentação atrasada em sistemas eletroquímicos
In this paper, we show the development of a LabVIEW algorithm able to apply the delayed feedback control on oscillatory electrochemical reactions. The coupling of the control and the experiments was carried out by a real-time apparatus, measuring the faradaic current and, in sequence, applying a calculated circuit voltage as an analog output. The setup was u
Quím. Nova. Publicado em: 2021-06
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3. Low-cost wireless sensor network applied to real-time monitoring and control of water consumption in residences
Resumo O objetivo deste trabalho é realizar o monitoramento e o controle em tempo real do consumo de água nas residências, com feedback aos usuários e de baixo custo. As informações de consumo de água serão disponibilizadas na nuvem e poderão ser acessadas através de um aplicativo de celular. Os dados coletados possibilitam que a concessionária de
Rev. Ambient. Água. Publicado em: 28/11/2019
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4. Electromagnetic Core Analysis of a DFIG State-Feedback Power Controller
Abstract The energy demand by modern society grows every day that allied with sustainable development requires the use of alternative sources in the new energy matrix. In this context, the wind energy as source by using a doubly-fed induction generator stands out due to its operational savings but still faces some conflicts in its power control. This paper p
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 12/09/2019
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5. Effects of extrinsic feedback on the motor learning after stroke
Abstract Aim: This study aims to investigate the effects of the type of extrinsic feedback provided equally in terms of timing and frequency of delivery on the motor learning after stroke. Methods: Twenty post-stroke individuals were distributed randomly into two groups according to the type of feedback provided: knowledge of performance experimental gro
Motriz: rev. educ. fis.. Publicado em: 10/06/2019
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6. Nonlinear H∞ control scheme for a flying robot
Abstract In this paper, a nonlinear H∞ state feedback control is designed for both orientation and altitude of a flying robot system in the presence of external disturbance. An analytical solution is proposed for Hamilton-Jacobi-Isaac (HJI) equation. According to the quadrotor's orientation and altitude, a suitable storage function is considered and the ap
Lat. Am. j. solids struct.. Publicado em: 13/05/2019
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7. Effects of the management control system in unethical behaviors
Purpose This study investigates which dimensions of the management control system (MCS) increase the perception of organizational justice and reduce unethical behavior in the perception of managers. The purpose of this paper is to validate the theoretical model of the study of Langevin and Mendoza (2012), testing the theoretical hypotheses formulated by the
RAUSP Manag. J.. Publicado em: 02/05/2019
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8. Research of the Photoelectric Tracking and Pointing Platform Based on the Servo Control System
ABSTRACT: To improve the speed and accuracy of the photoelectric tracking and pointing platform stable tracking, we took the three-axis photoelectric tracking platform, of which the coupling among the rings is ignored, as the research object. Considering the effects of various disturbances, the stable tracking double closed-loop servo control system was buil
J. Aerosp. Technol. Manag.. Publicado em: 18/03/2019
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9. Stability Characteristics of a Model Trim Adjustment System for Open Loop Active Control of Thermoacoustic Instability
ABSTRACT Thermoacoustic instability in liquid rocket engines can have potentially catastrophic consequences. Active control based on feedback promises improved stability margin over a wider range of operating conditions than passive control. In the present work, the thermoacoustic characteristics of a trim adjustment active control system based on variable v
J. Aerosp. Technol. Manag.. Publicado em: 14/01/2019
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10. Controller for a SPS machine: a proposal PI control
ABSTRACT Temperature control is the key to effective sintering process for metal, ceramic and polymer powders. The original control temperature provides an irregular control operation process which affects the material properties due to the spacer involved in it. Furthermore, it is analyzed how the material responds to an electrical input determining a model
Matéria (Rio J.). Publicado em: 19/07/2018
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11. Reconstruction of gait biomechanical parameters using cyclograms and artificial neural networks
Abstract Introduction Historically, assessing the quality of human gait has been a difficult process. Advanced studies can be conducted using modern 3D systems. However, due to their high cost, usage of these 3D systems is still restricted to research environments. 2D systems offer simpler and more affordable solutions. Methods In this study, the gait of 4
Res. Biomed. Eng.. Publicado em: 17/08/2017
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12. MULTIVARIABLE OPTIMAL CONTROL OF A HEAT EXCHANGER NETWORK WITH BYPASSES
Abstract Heat exchanger networks present an interesting control problem due to coupling among process streams. In this work, the linear quadratic regulator (LQR), a feedback optimal control technique, is used to control stream temperatures on a laboratory scale heat exchanger network, through bypass manipulation, in a multivariable system. The LQR design was
Braz. J. Chem. Eng.. Publicado em: 2016-03