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At technological processes of metallurgy and machine industry is steel annealing one of the most important operations have influence on production in term of the efficiency, quality and costs. By selection of suitable control of annealing process of the steel coils is possible to increase quality of annealed batch and economic efficiency of the furnace operation. In this paper is described control...
The area of the former coal mine Ležáky-Most, which is being turned into Lake Most by the process of hydric land reclamation, is located in the central part of the North-Bohemian brown coal basin, north of the town of Most, and south from the plant premises of Unipetrol Orlen Group, Ltd. From the southwest, south and east side the quarry is surrounded by denudated volcanic elevations of Czech Central...
The automatic identification technologies are beginning to applied more and more in many sectors [5], [8], like a supply chain management, security, hospital etc. They allow proving technological processes and observing the rules in various productions. The advantage of RFID technology (Radio Frequency Identification) is the fact that there is not necessary direct visibility for reading; it is also...
The purpose of this paper is to review basic concepts of optimal process control. We define the formulation and basic elements of optimal process control which are models of physical processes, constraints, objective function, functional, history of optimization, and practical approaches to optimal control implementation. The classification comprises basic theory, methods, and techniques. The theory...
This article describes in detail the measurement method and the calculation of the complete matrix of piezoelectric coefficients from one PZT ceramics disc. A set of piezoelectric samples is produced from a disc of appropriate dimensions for all types of vibrations that comply with the world and the European standards. The samples produced are a thin plate for traverse length mode, a thin disc for...
A modular, integrated guidance, navigation, and control system is described that can be used in a wide variety of moving vehicle applications. The system comprises 3 modules; the guidance module controls the motion of the center of mass of the system, issuing a command signal that the control module (autopilot) is designed to track. These modules are designed under the assumption of perfect state...
Ability of machines to fly was based on the complex mechanical units until the end of last century. Development of high-quality and affordable sensors brings the innovation to this sector. The complex mechanical parts can be replaced by electronics. The construction of multi propeller platform includes DC motors, power electronics, microcomputer, sensors and simple frame. It doesn't require complex...
The paper is devoted to 3-axis positioning of a CNC machine model. This desktop CNC machine is used here as a tool for circuit board holes drilling, designed using the EAGLE software. Connection between the EAGLE software and the CNC machine model is provided by monitoring and visualization application, created in the visualization system Control Web 6. This application receives exported data from...
This paper deals with the modelling and controlling of an uncertain biotechnological process. More precisely, in the first part we estimate the biomass concentrations in a biotechnological process by using interval observers. Since the modelling of these processes is uncertain, only some bounds of the biomass concentrations can be estimated by using two appropriate interval observers. The second part...
In this paper the problem of predictive control for a laboratory plant model it is investigated. The model of the laboratory plant is a hybrid one, containing both continuous and discrete state/inputs. Model predictive control requires an optimization problem to be solved in order to compute the command that is applied to the plant, taking into account constraints on inputs and outputs. For the hybrid...
The diagnostics of operation for the energy conversion systems is realized as a result of collecting, processing, evaluating and analyzing the measurement signals. Thus, determination of the process state, understood as the evaluation of the hereof process deviations from the reference standard process is possible. Researches focused on the identification of the process operation states changes have...
Today a general need for robots assisting different human activities rises. The goal of the present project is to develop a general purpose data collector framework, which provides facilities for attaching and fitting different kinds of sensors and actuators. This general purpose framework provides an easy way to turn a general purpose robot into a special function one. The final concrete goal of...
Identification of empirical characteristic of power efficiency of multi-fuel fluidized-bed boiler CFB-Compact co-fired with hard coal, low-grade coal and biomass has been carried out. Measurement data from a distributed control system (DCS) of the boiler have been used. Thermal power of the boiler, molar fraction of oxygen in flue gases as well as part of the low-grade coal and part of the biomass...
Vertigo is very common feeling, known more or less to everyone. It is a very common type of dizziness. Extensive studies confirmed that about 20% men and up to 40% of adult women from time to time have feeling of motion when one is stationary. There are several sophisticated methods which help to find a cause of vertigo. Many of them were described in the last century or even earlier. These methods...
This article aims to design and develop an application for generating KPIs (key performance indicators) for a company using genetic algorithms. Business self-assessment results and their fitness evaluation are used.
Demand for information, transmission speed with which information can get from provider to user is rapidly growing in the modern times. Establishing a connection has never been so easy as nowadays. Optical communication systems working in a free environment (FSO - Free Space Optics) are becoming very popular. Using FSO solutions of the so called last mile can be resolved within a few hours and without...
This paper deals with the fractional-order memristive, memcapacitative, and meminductive systems and their utilization in design of the new circuits with memory. We provide a mathematical description of such systems by using a technique of the fractional calculus. Some possible applications of “mem” systems are mentioned in article as well.
Operation of RFID systems is strongly disturbed by metallic environments in the proximity of the antenna. These environments produce a detuning on the antenna, which as a side effect produce a drastic decrease in reading distance. In this paper, the authors show that it's possible to make a radical improvement on HF RFID systems performances by retuning the reader antenna to its system working frequency...
The considered rotary table is an autonomous device which can be applied to different tool machines. Especially it is designed for milling machines. Applied direct drive is actually a torque motor. One of the most unique features of a torque motors concerns their physical dimensions ratio. They have a relatively larger diameter than the dimension of their axial length. This paper includes results...
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