2018 22nd International Conference on System Theory, Control and Computing (ICSTCC)

In this paper an approach for adapting a speed controller in order to perform a superposition of the speed of a circulating pump with a sinusoidal excitation is presented. In various applications the injection of a sinusoidal signal can be used for frequency response analysis. In this case the speed control of a circulating pump is adapted in order to perform a speed excitation which can be used f... View full abstract»

In this paper a minimum-energy problem of perfect control algorithm dedicated to LTI MIMO plants described in the discrete-time state-space framework is shown. Following the new facts concerning the above-mentioned issue, a new solution based on the mathematical norms utilizing some generalized inverse formulas is given in this paper. The simulation instance confirms the correctness of a new intri... View full abstract»

Differential flatness and methods based on this property have proved to be very fruitful for tracking controllers and trajectory planning of nonlinear systems. As a dual to the concept of differentially flat outputs, this contribution deals with the computation of flat inputs, and thus with the problem of actuator placement. Given a mathematical description of a system's behavior and a desired out... View full abstract»

In this paper a cascade control system (CCS) structure made of a combination of tensor product (TP)-based model transformation and of fuzzy control is designed for the position control of the magnetic Ievitation (Maglev) laboratory equipment. The linearized Maglev system model was first stabilized using two control method: a state-feedback control structure (SF-CS) and a Proportional-Integral-stat... View full abstract»

This note is concerned with the static output feedback (SOF) H-infinity controller design for linear timeinvariant systems. A sufficient bilinear matrix inequality (BMI) condition is developed for finding a stabilizing static output feedback H-infinity controller. For the first time, a novel cone complementary linearization approach within the context of linear matrix inequalities (LMI) is propose... View full abstract»

In this paper, a simple yet versatile modelling approach for sinusoidal pressure oscillations in an industrial multi-stage condensation system and different control schemes for suppression are presented. The investigated condensation system is embedded in an extensive extraction system and is used to separate a hazardous substance out of a gas mixture. The main problem is posed by unknown and unme... View full abstract»

The paper presents the research results regarding process simulation and control of benzene separation in an industrial plant. The main purpose of the paper is to design a quality control system for the distillation column. The paper is structured in four parts, the first one being a review of the main simulation process software's and ways of using them. The second part contains an overview of th... View full abstract»

This paper aims to presents the results obtained in electromechanical wind speed emulator of distributed low power system. The results are obtained in insulated regime with a step up/down converter, battery bank and resistive load. All the operating regions are aimed, namely optimization and power limitation one, and also an intermediate operating region is considered in order to ensure smooth tra... View full abstract»

Machine learning is an emerging technology that can be used in multiple domains, including autonomous driving. This approach is explored in the present study case of 1:10 scale car components, delivering performances and further thoughts on full-scale implementation of an artificial neural network in the area of self-driving automobiles. The frames taken from live recording pass through an artific... View full abstract»

The paper presents a data-based synthesis method for power control algorithm of a wind turbine in full-load operating region, within a general strategy of gain scheduling type. The proposed method is based on the existence of several efficient solutions for the generation of a detailed mathematical model for a high-power wind system that by its simulation in different operating regimes can provide... View full abstract»

When dealing with epidemic spread, a very common And dangerous situation is the presence of an epidemic disease and a complication, especially in an elderly population or a weakened one. In this case the complication, that alone is not, in general, a fatal disease, may become risky. The ad hoc resource allocation becomes a mandatory task, aiming at the most rationale control strategy. This is the ... View full abstract»

Cancer represents one of the leading causes of mortality in this century. Patients suffering from lung cancer (LC) have an average of 5 years life expectancy after diagnosis. This is due usually to late detection. The most common methods to detect lung cancer are computed tomography (CT) and magnetic resonance imaging (MRI). These investigations are invasive to the human body and are performed onl... View full abstract»

Control algorithms for a bihormonal artificial pan-Creas are proposed in such a way that insulin and glucagon actions are incorporated, aiming to avoid hypoglycemic and hyperglycemic episodes. Such control algorithms are utilized in order to ensure the blood glucose regulation in type 1 diabetic patients. The mathematical model utilized has experimental validation and represents the glucose-insuli... View full abstract»

In this paper the problem of the HIV/AIDS spread reduction is addressed in the framework of optimal control theory. A model recently proposed has been adopted; it considers two classes of susceptible subjects, the wise people and the people with incautious behaviors, and three classes of infected, the ones still not aware of their status, the pre-AIDS patients and the AIDS ones. The control action... View full abstract»

This paper presents a method for the automatic identification and classification of red cells in different classes of interest for diagnosis using microscopic images of blood smear. The whole system uses different image processing techniques such as binarization, contrast enhancement, noise elimination, morphological operations (dilatation, erosion), labeling and extraction of some features of int... View full abstract»

The model of the axial and torsional vibrations for a drillstring with distributed parameters is obtained using the variational approach within the Hamiltonian Mechanics. Further there is considered the model of the axial vibrations which is a linear system with control and perturbation input signals. To the aforementioned equations of the model a system of equations with deviated argument is asso... View full abstract»

Drilling operations face with three types of vibrations torsional, axial and lateral, which are coupled oscillations that occur from the interaction of the drillstring with the rock at the bottom of the borehole. The paper focuses on the numerical and computational modeling of the axial vibrations of a drilling system, considering the case of distributed parameters as being tight connected with th... View full abstract»

This paper proposes a solution regarding the general consensus of a multi-agent time-delay system in order to achieve interactive and transport operations. The multi-agent system consists of a set of omni directional mobile robots equipped with vision based systems and interactive tools. It is well known that the vision-based systems and the communication between agents produce time-delays, causin... View full abstract»

The present paper describes a pipeline digital architecture of a fuzzy rule base grayscale image contrast enhancement system. The proposed system uses a zero order Takagi-Sugeno fuzzy model, adapted to avoid the division operation in the deffuzification block and also to reduce the computational requirements for the fuzzification block. The digital architecture is optimized to benefit from the adv... View full abstract»