The paper deals with the infrared radiation source EK-8520, ability to measure using a thermocouple TP334 and temperature by thermal imager for calculating spectral range. It prepares the theoretical and practical bas...
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The paper deals with the infrared radiation source EK-8520, ability to measure using a thermocouple TP334 and temperature by thermal imager for calculating spectral range. It prepares the theoretical and practical bases for testing infrared radiation detectors for security technologies.
Telesurgery means the remote application of interventional medical techniques; a concept that is currently widely practiced around the world for short distance through master-slave robot systems. The concept has the p...
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Telesurgery means the remote application of interventional medical techniques; a concept that is currently widely practiced around the world for short distance through master-slave robot systems. The concept has the potential to service long distance telesurgery as well. However, this requires the effective handling of communication latency. The current paper suggests a fuzzy control solution for telesurgical applications aiming at the alleviation of the disturbing effects of large latencies with the concept of remote surgical robotics. The fuzzy control solution is supported by a cascade control system structure with two proportional-integral-derivative (PID) controllers in the inner and outer control loops and designed by Kessler's Extended Symmetrical Optimum empirical criteria. The PID controller in the outer loop is next replaced by Takagi-Sugeno-Kong PID-fuzzy controllers which combine several separately designed PID controllers. The combination of separately designed PID controllers and the modal equivalence principle are expressed as a design and tuning method of the Tagaki-Sugeno-Kong PID-fuzzy controllers.
Real-time applications should timely deliver synchromzed data-sets, minimize latency in their response and meet theIr performance specifications in the presence of disturbances and faults. The fault tolerant behavior ...
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Real-time applications should timely deliver synchronized data-sets, minimize latency and jitter in their response and meet their performance specifications in the presence of disturbances and faults. The fault tolera...
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This contribution is focused on control of single-input single-output (SISO) systems containing harmonically time-varying delay. Three different approaches to continuous-time control are studied and compared. The firs...
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ISBN:
(纸本)9789549260014
This contribution is focused on control of single-input single-output (SISO) systems containing harmonically time-varying delay. Three different approaches to continuous-time control are studied and compared. The first technique utilizes a modified PI-PD Smith predictor in a combination with standard forms for minimum of integral squared time error (ISTE). The second methodology exploits a Coefficient Diagram Method (CDM) for another modified Smith predictor structure. And finally, the third approach to synthesis is based on general solutions of Diophantine equations in the ring of proper and Hurwitz-stable rational functions (RPS) for a classical feedback control loop. The comparison of proposed methods is accomplished through a simple simulation example.
Paper deals with implementation of self-tuning digital PID controller on general-purpose 8-bit Freescale 68HC908GB60 microcontroller which is a part of development board M68EVB908GB60 by Axiom Manufacturing. The proce...
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ISBN:
(纸本)9789604741991
Paper deals with implementation of self-tuning digital PID controller on general-purpose 8-bit Freescale 68HC908GB60 microcontroller which is a part of development board M68EVB908GB60 by Axiom Manufacturing. The process is identified using modified recursive least squares method with adaptive directional forgetting resulting in δ model representation of controlled plant. This representation was chosen in order to achieve lower sampling time periods and mainly better numerical stability of identification process. control part of algorithm utilizes digital PID controller whose parameters are designed by pole placement method. Developed program equipment works under realtime operating system RTMON for HCS08 which was created on our department. Functionality of the controller was verified by controlling two different educational heat plants models which are used in laboratory lessons of Theory of Automatic control subject.
The nervous control of the cardiovascular system has been the subject of intensive research investigations during the last decades. This nervous control usually involves two or more nervous reflex mechanisms that act ...
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ISBN:
(纸本)9789881701282
The nervous control of the cardiovascular system has been the subject of intensive research investigations during the last decades. This nervous control usually involves two or more nervous reflex mechanisms that act at the same time, increasing a lot the complexity of the system. Although many aspects are currently known regarding some reflex mechanisms (e.g. the baroreflex), others remain in a veil of uncertainties. This is the case of the vestibular- sympathetic reflex, which has not been characterized at a quantitative level yet. In this context, the aim of this paper is to take a first step in a quantitative model of the vestibular sympathetic reflex, by developing an interpolative model of the Vestibular Nucleus first. The model was built based on experimental data available in the literature. This interpolative model will allow a more thorough analysis of the dynamic behavior of the Vestibular Nucleus, and also a coupling with the output of the Vestibular receptors.
Motivation for this paper stems from the need to deal with systems in which uncertainty exists on the measured signals and in the parameters of an assumed system model of known structure, and/or where the LTI assumpti...
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The paper presents an experimental verification of conventional PI and PID controller design methods. Nine different synthesis techniques were used to control of airflow speed in laboratory model of hotair tunnel, mos...
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The paper presents an experimental verification of conventional PI and PID controller design methods. Nine different synthesis techniques were used to control of airflow speed in laboratory model of hotair tunnel, most of them for both PI and PID version. In the first instance the controlled plant was identified in order to obtain a linear mathematical model and then the controllers were designed using studied methods. The controllers were tested in simulations and subsequently implemented under real conditions. The obtained control results have been compared and analyzed.
Motivation for this paper stems from the need to deal with systems in which uncertainty exists on the measured signals and in the parameters of an assumed system model of known structure, and/or where the LTI assumpti...
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ISBN:
(纸本)9781424474325
Motivation for this paper stems from the need to deal with systems in which uncertainty exists on the measured signals and in the parameters of an assumed system model of known structure, and/or where the LTI assumption no longer holds. The potential of the a approach presented here is demonstrated when it is applied to a system in the presence of both an imposed mismatch in the model parameters as well the case of time-varying parameters. The effectiveness of the new EIV-EKF procedure is compared with that of an EIV Kalman filter, and evaluated on both single-input single-output and multiple-input multiple-output systems.
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