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This paper deals with one of the successful ways how to maintain position at high level of the competition. The application of the process management and following knowledge management in the company is one of the good ways how to bring the positive results, high level of value added, low costs, obligation of the requests of customers and corresponding profit. This is absolutely important for the...
Our intention is to create a balance model capable of predicting the lake water level behavior. This article summarizes the basic facts about Lake Most and theoretical prerequisites necessary for the creation of a dynamic model. The model consists of two independent platforms that can be used to create dynamic models. The first of the applications is Powersim and the other one is Vensim. Both applications...
Controller tuning is one of the most important tasks of control loop design. Various control algorithms have the tuning mechanism built-in themselves. However, the most of used controllers are controllers of the PID type that contains no selftuning features; it is necessary to tune the controller manually or the selftuning features need to be added externally. Despite of the fact that many PID controller...
Unemployment represents one of the key social and economical issues of the current world. The Integrated Portal of the Ministry of Labor and Social Affairs of the Czech Republic supports unemployed people to find a proper job using various useful tools. Any user can find a job according various criteria. The existence of public transport connection between municipality of residence and municipality...
This paper is concerned with the problem of stabilization for discrete-time systems with time-varying delays and the presentation of an improved version of the state feedback control design method. In the spirit of Lyapunov-Krasovskii functional application the delayed-dependent stability condition is derived in terms of linear matrix inequalities. The result giving a sufficient condition for stabilization...
This paper presents an investigation of industrial processes with 3D PMD Sensor. The sensor is placed above the construction where the servomechanism is moving with the objects by high speed up to 90 m/s. The measured objects are pushed by the working span and controlled by follow-on automatic mechanism. The movement of the objects is monitored by the IFM Effector 3D PMD Sensor at speed up to 20 FPS,...
The available deformation range, forces and frequency of the Magnetic Shape Memory Alloys (MSMA) render them suitable for applications in electro-mechanical transducers, used to control pneumatic valves. A fast-operating electro-mechanical transducers can be designed, whose driving elements should not execute any motion, as they do in valves available to date, and which should get deformed instead...
The paper describes a way of control of a serial mechatronic chain (electric servodrive + gearbox + cam mechanism + load) in the sense of SW tools usage. The goal of the control law is to reach the maximum position accuracy. The driving motor is set in the position mode which allows a definition of the displacement law (table of predefined position values). The control law uses position-speed-torque...
The subject of this paper is the analysis of properties of the mechatronic chain. That chain was represented by the mechanical system where the particular mechanical elements were linked in serial satisfying this setup: electric servomotor — mechanical gearbox — cam — load. The mechanical and the electrical parameters were monitored. The current and the voltage sensors were installed to determine...
The paper discusses relations between so called Interpretation Space (IS), Sign Model (SM) and their Connection. The principal importance has the process of the Interpretation that assigns the semantic contents (in IS) to signs and sign formation (from SM). The fact that the interpretation mapping from lower to higher level of IS is non constructible induces the situation of „bottom-up emergence”...
A control model of the steel casting process will be proposed using fractional order differential equations (FDE) and the orthogonal distance fitting (ODF). These two mathematical approaches will be used for creating a relationship between the speed of steel casting and the measured temperature of the steel strand in a critical place of the continuous steel casting machine. To obtain the required...
In this paper a new approach to 3D HMI suited to Java platform is presented. The technique described is based on Java3D package (rendering package) and a VRML (Virtual Reality Modeling Language) Java loader which creates a bridge between the CAD system and the rendering engine. The new approach is step-by-step demonstrated on a real Furuta pendulum HMI. Moreover, it is shown that after adding a simulation...
The purpose of this article is to introduce the achievements reached with the Mojette Transform in recent years within our workgroup including from the simple description of the Mojette Transform and the Inverse Mojette Transform which originates form France to a theory of real time application. We introduced the benefits of the transform through its implementation in .Net environment. Describing...
App Inventor is visual development software for the Android platform. It lets developer to use visual language to develop applications for Android phones using a web browser and either a connected phone or emulator. It integrates a palette of control functions for Lego Mindstorms NXT that allows developers to build their own applications that can control robot with its motors and sensors.
The application for GPS devices expand the use of GPS devices. It is very simply designed and has intuitive operation and environment. The big advantage is an on-line access to the application. The basic characteristic of similar applications is planning and rendering the route which was taken. Therefore, this application provides both of these functions. Route from point A to point B might be planned...
Monitoring and late control system for Underground Coal Gasification (UCG) in laboratory condition were developed. Architecture server & client were used. Hardware configuration consists from PC an PLC. Software package was created on base Automation Studio and Promotic. Data processing of measured variables including visualization (monitoring system) is realized in Promotic and DDC by a help...
Parallel data processing belongs in the present time to the basic approaches. Its realization is possible by using of multi-core processors or we can use new trend with graphic accelerators on the new type of graphic cards. However this process is not straightforward and it requires an adequate model structure and application program parallelization. Adequate model structure includes not only parallelization...
The contribution deals with modeling of heating process by phase transition. There are described real systems, which contain substances with multiple phases. Typical substance in raw material extracting and processing area is iron that in solid phase has a four modification. One phase is characterized usually with multiple temperature intervals for specific thermo chemical properties e.g. specific...
Localization in wireless sensor networks is a main issue, i.e. to determine the position of a given device in the network. Location information of mobile nodes is a demand in many wireless systems. To give the position of the target node reference points have to be used. The node can calculate its distance and/or angle between itself and the reference points. In the 2D space, if a node knows its distance...
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