This contribution describes universal embedded system suitable for small motion robots. Most of the robots in this category are equipped at least 2 drive wheels with feedback for robot moving, RF link for the communic...
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This contribution describes universal embedded system suitable for small motion robots. Most of the robots in this category are equipped at least 2 drive wheels with feedback for robot moving, RF link for the communication with host computer or between another ones, microcontroller for robot control, single power supply and interfaces for interconnection with sensors or actuators. Plenty of design of this electronic exist but usually are developed only for one specific application. Our system was designed for general use. It provides good performances of robots suitable also for application in robot soccer game and plenty of applications as testing AI, multiagents system as well as education purpose.
This paper considers the stability of the fractional-order linear time-invariant systems with interval type uncertainties in both fractional orders and the relevant coefficients. It is an extension of our previous res...
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This paper considers the stability of the fractional-order linear time-invariant systems with interval type uncertainties in both fractional orders and the relevant coefficients. It is an extension of our previous result on the robust stability analysis of the interval type uncertain fractional order LTI systems with crisply known fractional orders. We have proposed a stability check procedure for uncertain LTI systems with interval fractional orders and interval coefficients. The procedure is demonstrated with some simple examples
The paper is focused on the area of using multimedia in distributed systems (DS), its first part gives an introduction to the history of DS and multimedia. Its goal is to present basic terms and possibilities of imple...
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The paper is focused on the area of using multimedia in distributed systems (DS), its first part gives an introduction to the history of DS and multimedia. Its goal is to present basic terms and possibilities of implementation in this area where the big emphasis is given to integration and using multimedia and DS in still developing area of the internet. The report describes an experiment concerning on-line video transfer through the school network of VŠB-Ostrava where demonstrational projects have been developed (PC to PC, and connecting PC to the school network with various loads). These experiments were running using Microsoft and Real Network software, and the comparison of both systems has been done concerning the quality of the transfer.
Today many vendors covering the processcontrol automation area offer a variety of products using a Linux operating system. These controllers, communication and visualisation resources meets customer requirements for ...
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Today many vendors covering the processcontrol automation area offer a variety of products using a Linux operating system. These controllers, communication and visualisation resources meets customer requirements for easy and relatively low-cost integration with information systems for enterprise management, as they contain standardized communication and graphics components commonly used in the internet network. This article covers typical problems we meet when using Linux in control systems and gives typical examples of such devices.
This contribution describes improvement of soccer robot (class Mirosot) communication. 2.4 GHz band, half-duplex communication and more than 100 channels are some of several advantages of the system. Main advantage is...
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This contribution describes improvement of soccer robot (class Mirosot) communication. 2.4 GHz band, half-duplex communication and more than 100 channels are some of several advantages of the system. Main advantage is wide range of communication modes and protocols which can be used on this hardware. It enables PC (Master) to robot, robot to robot communication as well as broadcast data for all robots. Main advantage is wide range of communication modes and protocols which can be used on this hardware. It enables PC (Master) to robot, robot to robot communication as well as broadcast data for all robots. This system (especial hardware part of system) rise effective bit-rate to order 100 kbit/s (before 19.2 kb/s), bi-directional communication and more channels for applying several channels in one time and safety communication protocol. Applications of distributed system, distributed AI as well as robot telemetry are now possible.
In a distributed control systems the internal communication bus represents a critical technology component that interconnects particular control system elements. Efficiency of a communication inside the distributed co...
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In large distributed control systems or in large information systems still more often the wireless communication with remote objects which are the integral part of these systems is used. The second sphere of the wirel...
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The paper discusses possible ways how to incorporate an existing controller into the predictive control framework. This idea is used in anti-windup framework, where the performance can degrade in some cases. The basic...
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In a distributed control systems the internal communication bus represents a critical technology component that interconnects particular control system elements. Efficiency of a communication inside the distributed co...
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In a distributed control systems the internal communication bus represents a critical technology component that interconnects particular control system elements. Efficiency of a communication inside the distributed control system is relied using an appropriate industrial bus. To estimate crucial parameters of the bus (such as a bus throughput, etc.), the bus communication model is designed to verify the usability of the concrete industrial bus under real application conditions. The CAN bus communication modelling is presented in this paper.
The paper discusses possible ways how to incorporate an existing controller into the predictive control framework. This idea is used in anti-wind up framework, where the performance can degrade in some cases. The basi...
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The paper discusses possible ways how to incorporate an existing controller into the predictive control framework. This idea is used in anti-wind up framework, where the performance can degrade in some cases. The basic requirements are to meet the performance of the nominal controller in the unconstrained case and to guarantee stability in the constrained case.
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