The application of mobile robot control using multi-agents is executed in a game form within the mechatronic task of robot soccer. The game dynamic nature and the infinite number of possible strategic variations under...
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This paper presents the design of an embedded control and monitoring system for small sport and ultra-light airplanes. The focus is on the system's structure and a description of module architecture. The project i...
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In this paper, we propose an embedded multi-task scheduling system to make the wireless brain computer interface to real-time receive electroencephalogram signal more accurate. This method we propose also can increase...
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This paper presents an investigation into the development of an adaptive control mechanism for vibration suppression of flexible beam structures using genetic algorithms (GAs). The global search technique of GA is use...
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This paper presents an investigation into the development of an adaptive control mechanism for vibration suppression of flexible beam structures using genetic algorithms (GAs). The global search technique of GA is used to estimate the controller transfer function, based on one-step-ahead prediction. An active vibration control (AVC) system is designed utilizing a single-input single-output (SISO) control structure to yield optimum cancellation of broadband vibration at an observation point along the beam. The mean-squared error of observed deflection is adopted as the fitness function and randomly selected controller parameters are optimised for different, arbitrarily chosen order to fit to the system by applying the working mechanism of GA. The global search technique of the GA is utilised to obtain the best parameters among all attempted orders for the controller. The GA-AVC algorithm thus developed is implemented within the simulation environment of a flexible beam structure and simulation results are presented to assess the performance of the system, with different types of excitation namely pseudo-random binary sequence, uniform random and finite duration step signals. It is noted that, the system performance is satisfactory and significant amount of vibration reduction over a broad range of frequencies of the input signal is achieved.
In the paper the problem of disturbance attenuation performance in single-loop control system is investigated. Modified MV control strategy with bounded control variance is used as benchmark for both LQG and classical...
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ISBN:
(纸本)1424401704;9781424401703
In the paper the problem of disturbance attenuation performance in single-loop control system is investigated. Modified MV control strategy with bounded control variance is used as benchmark for both LQG and classically and optimally tuned PID-type controllers. Certain time and frequency domain functions are then examined to further assess the control performance in terms of robustness. It has been shown that as long as the system to be controlled is delay-free, and there is no extreme demand on performance, simple lag-delay system model along with optimally tuned PID control algorithm provides control quality similar to that of LQG controlled original system assuming the same bound on control signal variance. Although the classical performance measure based on substitute delay indicates then almost optimal performance, there is still room for additional improvement that can be attained using both PID and LQG controllers and more sophisticated original delay-free model. The price paid is much larger control variance. It is interesting to note that while LQG systems remain robust this is not longer valid for PID controllers
A linear time-varying filter with the characteristic of variable bandwidth is proposed for noise reduction of signals with time-varying bandwidth and decomposition of multicomponent signals into components. The propos...
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Repetitive processes are a distinct class of two-dimensional (2D) systems (i.e. information propagation in two independent directions occurs) of both systems theoretic and applications interest. They cannot be control...
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Flow-level traffic measurement is important for network management. The widely used centralized per-flow measurement faces a great challenge due to the demanding requirement on both memory bandwidth and memory size wi...
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The data set of batch biological and biotechnological processes can be organized in a three-way data matrix. In this paper the usefulness of different PCA approaches for monitoring is analyzed. Different ways of unfol...
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This paper presents the basic idea and the mathematical formulation of the delayed feedback control (DFC) methodology. Stability analysis including the well-known odd number limitation of the DFC is reviewed. Some new...
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