Jindrich Cernohorsky

Database Prebuffering as a Way to Create a Mobile Control and Information System with Better Response Time

Location-aware services can benefit from indoor location tracking. The widespread adoption of Wi-Fi as the network infrastructure creates the opportunity of deploying WiFi-based location services with no additional hardware costs. Additionally, the ability to let a mobile device determine its location in an indoor environment supports the creation of a new range of mobile control system applications. Main area of interest is in a model of a radio-frequency based system enhancement for locating and tracking users of our control system inside the buildings. The developed framework as it is described here joins the concepts of location and user tracking as an extension for a new control system. The experimental framework prototype uses a WiFi network infrastructure to let a mobile device determine its indoor position. User location is used for data pre-buffering and pushing information from server to users PDA. All server data is saved as artifacts (together) with its position information in building.

Constrained optimization of robot trajectory and obstacle avoidance

This paper deals with time-optimization of trajectories of wheeled robots within the speed and other constraints. The cubic Hermite spline curve with the method of speed profile computation is used to determine the trajectory. This method is summarized and extended to allow the optimization with the described constraints. It ensures fulfilment of required initial parameters of motion. The parameters of motion and trajectory are described using a model with stationary obstacles. Then algorithm of optimization is developed and tested by means of a hypothetical example. The results are computed by nonlinear solver in MATLAB. A neural network is then introduced to accelerate the calculation of the numerically computed optimal results. The trained network is compared with numerical solution.

Process of multi technical education in biomedical engineers curricula

Biomedical engineering, clinical engineering and medical informatics represent interdisciplinary branches which are very progressive and acknowledged and which intervene into many spheres. The mentioned branches apply various technical principles and skills in biology and medicine: from proposals, construction and implementation, to the servicing of medical technology. These inspired to change the structure of curricula of the study branch and also the conception of some classes to better cover the legislative needs. Nowadays the study field biomedical engineering is educated as study fild in bachelor and master study at VSB -Technical university of Ostrava, Faculty of electrical engineering and computer science with cooperation of Medico-Social faculty of the University of Ostrava teaching medico - social courses. The courses are mainly provided in special laboratories which combines multi-technical proposition to solve during education in teams.

Rehabilitation System for the Motion Analysis of the Wobble Board

This paper describes the design and implementation of the telemetric low energy rehabilitation system for the motion analysis of the wobble board. The balance exercises on the wobble board are used for the rehabilitation of diagnoses such as poor posture, flat foot, different types of fractures and postsurgical states of a lower extremity. In routine clinical practice the patient is under constant supervision and guidance of a physiotherapist. The physiotherapist ensures that the patient has the proper posture or that they activate the correct muscle group. The motion analysis of the wobble board could provide important information about the quality of the undertaken exercise which could for example tell us if the patient uses the correct muscle group. The proposed system was compared with the most significant related works and their advantages and disadvantages were pointed out.

Multidisciplinary Education of Biomedical Engineers

Biomedical engineering, clinical engineering and medical informatics represent interdisciplinary branches which are very progressive and acknowledged and which intervene into many spheres. The mentioned branches apply various technical principles and skills in biology and medicine: from proposals, construction and implementation, to the servicing of medical technology. These inspired to change the structure of curricula of the study branch and also the conception of some classes to better cover the legislative needs. Nowadays the study field biomedical engineering is educated as study fild in bachelor and master study at VSB — Technical university of Ostrava, Faculty of electrical engineering and computer science with cooperation of Medico-Social faculty of the University of Ostrava and University Hospital Ostrava teaching medico-social courses. The courses are mainly provided in special laboratories which combines multi-technical proposition to solve during education in teams.

Education of Biomedical Engineering in the Technical University of Ostrava

This paper deals with current trends in teaching biomedical engineering at the Technical University, Technical University of Ostrava. The paper presents information about the structure of the bachelor degree - Biomedical Technology and follow-up master degree of biomedical engineering. In connection with the teaching itself is also important information about the number of graduates and their themes of final thesis. Equally important is the information about linking teaching and collaboration with practice.

ECG data visualisation in web application using MS Silverlight

Work deal with the design development for visualization to see the results of ECG measurement. Visualization is implemented as a web application using Microsoft Silverlight platform.

Invasive blood pressure curves simulation device

Patient monitor modules have various inputs for vital function measurement. We can practice many of these measurements with some students in the laboratory of biomedical engineering. However, invasive blood pressure (IBP) measurement demonstration is impossible. This paper is dealing with design and realization of a programmable invasive blood pressure simulator. This device is able to generate programmable behavior of voltage signal with correspond to blood pressure curve. The user communication interface of the device allows choosing the type of generated signal by LCD and 4 push buttons. The wide spectrums of generated signals, which correspond to physiological or pathological blood pressure curves, are stored in a user programmable memory. The output connectors of the device can be directly connected to a patient monitor IBP module input. Invasive blood pressure measurement simulation for educational purposes and calibrating the patients monitors are the general usages of the developed device.

By legislation driven BME curriculum at VSB TU Ostrava

The new “Act on Paramedical Professions” has been adopted in the Czech Republic in 2004. The act governs the conditions for the obtaining of qualifications for pursuing paramedical professions and for carrying out activities related to the provision of health care. The more accurate conditions has been defined later in a concurring decree in 2005.

Task jitter measurement under RTLinux and RTX operating systems, comparison of RTLinux and RTX operating environments

This paper compares task jitter measurement performed under RTLinux and RTX hard real-time operating systems. Both the operating environments represent hardware abstraction layer extensions to general-purpose operating systems, and make possible to create a real-time system according to the POSIX 1003.13 PSE 54 profile (multipurpose system). The paper is focused on discussion of experimental results, obtained on PC hardware, and their interpretation.