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This paper deals with a suboptimal state feedback anisotropy-based control problem for linear time-invariant discrete-time descriptor systems. The goal is to design a state feedback for the system such that the closed-loop system is admissible, and its anisotropic norm (mean anisotropy level is set) is bounded by a given positive real value.
This article describes the communication between the Weintek touch panel and the Siemens Simotion programmable logic controller. This communication is based on the Client-Server architecture. These particular devices from these particular producers ordinarily are not supposed to communicate between each other. With a designed application this communication is possible. Because of this, it is possible...
This paper deals with the description of the technology .Net Micro Framework, hardware modules and software tools for support of the creation of measurement applications with support of C # language in the Visual studio .Net. The paper reviewed the available hardware modules, software support, the principle of rapid prototyping and application development demonstrated by an example implementation...
The IEEE 1588 Standard for A Precision Clock Synchronization Protocol for Networked Measurement and Control Systems (PTP) has been developed to provide better quality in-band clock synchronization in distributed measurement and control systems and other network embedded systems. Using IEEE 1588 compliant Ethernet equipment (network interface cards and switches) it is possible to provide sub 1 microsecond...
KPIs (Key Performance Indicators-KPIs) are quantifiable values that reflect the critical success factors of operation, enterprise companies. Choice of these parameters depends on the type of system being examined. As an example of the technological process in finding the optimal mode, KPI respectively, is a process of rock disintegration. The theoretical basis is the energy of disintegration theory,...
A predictive controller is a modern type of a regulator which is appropriate for many characters of processes. Non-minimum phase systems contain an undershoot in the initial part of its dynamic behaviour. The traditional approach in predictive control of non-minimum phase systems is based on increasing of the minimum prediction horizon. This method may not be always absolutely effective. In this paper...
The following article proposes fuzzy tool for processing risk analysis in the area of information security. The paper reviews today's approaches (qualitative and quantitative methodologies) and together with already published results proposes a fuzzy tool to support our novel approach. In this paper the fuzzy tool itself is proposed and also every main part of this tool is described. The proposed...
The paper deals with comparison of a filtered disturbance observer based PID control (DO FPID) with different realizations of a two-degree-of-freedom (2DOF) PID control. It shows that whereas in terms of IAE (Integral of absolute error) of the setpoint and disturbance step responses, both solutions may yield an equivalent closed loop dynamics, the DO FPID control guarantees a much better quantization...
In the paper, the robust control of temperature fields of the casting mould in the benchmark casting plant is presented. Temperature fields of the mould are represented by dynamic models in the form of a finite-dimensional approximation of distributed parameter systems. Models are created by means of an experimental identification. The control synthesis is decomposed to the time and space domain....
The paper studies optimal control of a class of nonlinear systems with quadratic/non-quadratic cost functions and suggests a new methodology to determine the control gain matrix for the nonlinear system. The nonlinear system model is approximated as a sequence of linear time varying approximations in which the classical controller design methods can be utilized. Then, optimal control is designed for...
This paper deals with a constrained control of nonlinear systems with a dominant second order dynamics, an non-modeled dynamics and a disturbance observer based integral action. Constraints of the control signal and states are considered. The nonlinear plant dynamics is transformed to a nonlinear canonical form and approximated by a zeroth Taylor term around a moving operating point. Possibilities...
RFID technology is becoming more and more popular these days and on its top stands passive UHF RFID technology for it's economical as well as practical benefits. Even though this technology is intended for inventory, several attempts have been made by several vendors in creating a real-time location tracking system using passive RFID solutions.
The paper deals with the problem of security increasing of applications oriented to safety used within intelligent transportation systems (ITS). The mainly part is orientated to the Lane Departure Warning System (LDWS) with connection to vehicular communications (VC). Simultaneously the safety parameters of the effective digital signature schemes for VC communications are mentioned which are used...
This Single-purpose machine for radial cam grinding BRV 300 - CNC is assembled from modular components. They realize precise linear and rotary motion control, measurement and mutual synchronization. Declared component parameters in different operational modes of machine were verified by external measurement system. Precision positioning of linear and rotary components and fluency of motion (rotation/shift)...
This paper presents the linearization and identification of a mathematical model of a hydraulic system coupled to the boom and the arm of an excavator. The system was represented in two ways: as a system of differential equations and as a quasi-linear model. The quasi-linear model was identified and verified using measurement results obtained for a real system. The data employed for the identification...
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