Analysis of Economic Indicators Using Statistical Methods

Bakalářská práce se zaměřuje na aplikaci finanční analýzy a posléze využití statistických metod pro vývoj do budoucna ve firmě BISON. Práce je dělena na oblast teoretickou obsahující teorii o ekonomických ukazatelích a statistických metodách. Reálné zhodnocení ekonomického stavu firmy a analýzy jsou obsaženy v analytické části. Tyto části zakončuje část s vlastními návrhy pro příznivý vývoj na základě analyzovaných výsledků. Zajímavým výstupem práce je zpracování ekonomických ukazatelů a statistických metod programem z VBA.This thesis focuses on the application of financial analysis and then use statistical methods for future developments in the company BISON. The work is divided into theoretical area containing the theory of economic indicators and statistical methods. The real appreciation of the economic situation of the company and analysis are contained in the analytical part . These parts of the score with its own proposals for favorable development on the basis of the analyzed results. An interesting outcome of this work is the preparation of economic indicators and statistical methods of VBA program .

Improved and innovated universal DAQ microcontroller unit

This paper is aimed at the description of hardware design, software equipment and the functionality of the second evolution of the intelligent multipurpose input/output microcontroller converter and control unit designed and assembled by the authors. Preceding stages of the unit development are concisely overviewed first, the deficiencies of which give rise to the primary motivation of this contribution. Then separate hardware parts of the novel unit are described in detail including electronic schematic diagrams. The device firmware and software capabilities are introduced as well. The advantages of the unit are highlighted compared to older versions. Its functionality, performance and efficiency are then verified by a laboratory control-related dynamic responses measurement example. In the contrary to previous evolutions, a more compact hardware design, increased A/D and D/A converter resolutions, added USB communication capability, better and more accurate analog circuits with more advanced operation amplifiers, the use of OLED instead of LCD display, the pulse-width modulated signal generated by the microcontroller unit itself can be considered among the most important improvements. Moreover, the direct use of the serial link may reduce noise significantly and makes the device more universal

Modular control system for embedded applications

This paper deals with hardware design of a modular control system intended for embedded applications demanding high computational power while maintaining low cost. The control system central unit is based on 32bit microcontroller MK60DN512 with ARM Cortex-M4 core manufactured by NXP Semiconductor. Module provides all the necessary signals on the two 2-row 40 pin headers and Ethernet communication interface in the form of a small daughter board. It is connected to the mainboard which must always contain 5 V stabilized power supply; other circuits are application specific. In our application the mainboard is equipped with SD card slot, RS232 and RS485 interface which is used for high speed interconnection with up to 15 expansion peripheral modules. This concept enables high flexibility to specific application demands without necessity of redesigning the control system. Controller is freely programmable in C language using any compatible integrated development environment NXP Kinetis Design Studio, for example. Software development and debugging is simplified by our support program libraries including necessary routines for control and monitoring tasks.Ministry of Education, Youth and Sports of the Czech Republic within the National Sustainability Programme [LO01303 (MSMT-7778/2014)]; European Regional Development Fund under the project CEBIA-Tech [CZ.1.05/2.1.00/03.0089

Simple software simulator for teaching embedded programming

This article presents simple software simulator of a microcontroller evaluation board FRDM-KL25Z. The simulator was developed to make it possible to teach our embedded systems course online during the COVID-19 pandemic. It is in principle a software library that handles function calls and register access from student's program and displays the outputs in a console window of a stan-dard desktop application. It does not require any special hardware or software tools except an IDE capable of building C++ applications for the desktop com-puter. It can be easily modified for different microcontrollers and thus can be useful if existing lessons need to be switched from in-person to distance learning at a short notice

Advanced debugger for Arduino

This article describes improved version of our source-level debugger for Arduino. The debugger can be used to debug Arduino programs using GNU debugger GDB with Eclipse or Visual Studio Code as the visual front-end. It supports all the functionally expected from a debugger such as stepping through the code, setting breakpoints, or viewing and modifying variables. These features are otherwise not available for the popular AVR-based Arduino boards without an external debug probe and modification of the board. With the presented debugger it is only needed to add a program library to the user program and optionally replace the bootloader. The debugger can speed up program development and make the Arduino platform even more usable as a tool for controlling various experimental apparatus or teaching computer programming. The article focuses on the new features and improvements we made in the debugger since its introduction in 2016. The most important improvement over the old version is the support for inserting breakpoints into program memory which allows debugging without affecting the speed of the debugged program and inserting breakpoints into interrupt service routines. Further enhancements include loading the program via the debugger and newly added support for Arduino Mega boards. © 2021. All Rights Reserved.Ministry of Education, Youth and Sports of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic [LO1303 (MSMT-7778/2014)]; European Regional Development Fund under the project CEBIA-Tech [CZ.1.05/2.1.00/03 xxx]Ministerstvo Školství, Mládeže a Tělovýchovy, MŠMT: LO1303, MSMT-7778/2014; European Regional Development Fund, FEDER: CZ.1.05/2.1.00/0

Microcontroller software library for process control

This paper deals with library of program modules for process control applications running on microcontrollers. The aim of the library is to make it easier to create control applications for microcontrollers. It should allow creating such applications by putting together existing program modules provided in the library with little new code required. The software is written in C language and works with Freescale HCS08 8-bit microcontrollers and the Kinetis series 32-bit ARM-based microcontrollers. It should also be easy to port the code to other platforms. © 2015 World Scientific and Engineering Academy and Society. All rights reserved

Microcontroller based control system with flexible configuration

The paper is aimed at description of the developed microcontroller based control system with flexible configuration allowing very simple implementation in many control tasks. It consist of the central module equipped with 32bit microcontroller MK60DN512 by NXP Semiconductor and input/ output modules for interfacing central module to the controlled process. Central module consists of two boards connected together – mainboard and microcontroller daughter board. Daughter board provides all the necessary microcontroller’s signals on the two 2-row 40pin headers and complete Ethernet communication interface. Mainboard provides to the daughter board 5V stabilized power supply and all necessary peripherals – SDHC card slot, RS232 and RS485 communication interfaces. RS232 is used for communication with smart sensors for instance; RS485 is especially used for high speed interconnection with up to 15 expansion peripheral modules. Control system is programmable in C language using any compatible IDE – NXP Kinetis Design Studio, for example. For this purpose support program libraries including necessary routines for control and monitoring tasks were created. © 2018, Danube Adria Association for Automation and Manufacturing, DAAAM. All rights reserved

Circuit heating plant model with internal delays

Cílem příspěvku je užití neobvyklého principu anizochronního modelování při popisu zaokruhovaného tepelného modelu. Toto zařízení bylo navrženo na Univerzitě Tomáše Bati ve Zlíně a jeho dynamické vlastnosti se přibližují některým reálným systémům, např. chladicímu okruhu aut či elektráren. Dynamika modelu je poměrně neobvyklá a těžko popsatelná konvenčními postupy. Získaný matematický popis bude využit pro ověření algebraických metod řízení systémů s vnitřním zpožděním v okruhu RMS.The aim of this paper is to utilize an unordinary anisochronic modelling principle on a circuit thermal laboratory plant. The class of anisochronic models is characterized by the existence of state (internal) delays, both distributed or lumped ones. The modelled laboratory appliance was designed at Tomas Bata University in Zlín, Czech Republic, as a thermal heating circuit small scale model with dynamic properties similar to that of a real heating system (e.g. a cooling circuit in cars). The motivation for the modelling of this plant was double. First, the dynamics of the plant exhibits unconventional step responses which cannot be explained by a standard analytic means. Second, the authors of this contribution intend to use the obtained anisochronic mathematical description of the plant with the view of the verification of algebraic control algorithms in the RMS ring designed for delayed systems earlier

Further experimental results on modelling and algebraic control of a delayed looped heating-cooling process under uncertainties

The aim of this research is to revise and substantially extend experimental modelling and control of a looped heating-cooling laboratory process with long input-output and internal delays under uncertainties. This research follows and extends the authors' recent results. As several significant improvements regarding robust modelling and control have been reached, the obtained results are provided with a link and comparison to the previous findings. First, an infinite-dimensional model based on mathematical-physical heat and mass transfer principles is developed. All important heat-fluid transport and control-signal delays are considered when assembling the model structure and relations of quantities. Model parameter values optimization based on the measurement data follows. When determining static model parameter values, all variations in steady-state measured data are taken into account simultaneously, which enhances previously obtained models. Values of dynamic model parameters and delays are further obtained by least mean square optimization. This innovative model is compared to two recently developed process models and to the best-fit model that ignores the measured variations. Controller structures are designed using algebraic tools for all four models. The designed controllers are robust in the sense of robust stability and performance. Both concepts are rigorously assessed, and the obtained conditions serve for controller parameter tuning. Two different control systems are assumed: the standard closed-loop feedback loop and the two-feedback-controllers control system. Numerous experimental measurements for nominal conditions and selected perturbations are performed. Obtained results are further analyzed via several criteria on manipulated input and controlled temperature. The designed controllers are compared to the Smith predictor structure that is wellestablished for time-delay systems control. An essential drawback of the predictor regarding disturbance rejection is highlighted.College of Polytechnics Jihlava; National Foreign Expert Project, (G2022178023L); Tomas Bata University in Zlin, TBU; Grantová Agentura České Republiky, GA ČR, (GAČR 21–45465L)Czech Science Foundation [GAC?R 21-45465L]; National Foreign Expert Project [G2022178023L

Analysis of Economic Indicators Using Statistical Methods

This thesis focuses on the application of financial analysis and then use statistical methods for future developments in the company BISON. The work is divided into theoretical area containing the theory of economic indicators and statistical methods. The real appreciation of the economic situation of the company and analysis are contained in the analytical part . These parts of the score with its own proposals for favorable development on the basis of the analyzed results. An interesting outcome of this work is the preparation of economic indicators and statistical methods of VBA program