The aim of this paper is to describe methods proposed for motion capture subsystem of smart orthosis for quantitative evaluation of movement activity of upper limbs during a rehabilitation process carried out at a clinic or at home. To quantify the description of motion we...

Using information about the values of the total center of pressure (CoP) and total vertical ground reaction force (GRF) during gait, quantitative parameters based on CoP trajectory length and trajectory length of 3-D plot of vertical GRF vs. CoP can be calculated and used to&#...

This paper concerns a modular pulsewidth modulation (PWM) modulator that is suitable for polyphase multi level inverters. The modulator is implemented in a field programmable gate array(FPGA) with a softcore microprocessor controlling it. Further it presents experiments with a five level fly...

Together with software on a micro-controller, simple additional hardware can implement electronics with less cost and power. Though analog before digitization, in particular, is effective, it comes with a drawback of larger circuit area. This paper proposes a scheme to shrink area by&#x...

This paper deals with three-level topology of neutral point piloted converters (3L-NPP). These converters can be realized in two variants. The first one is represented by one power semiconductor switch only placed in the top and bottom part of an output leg of a half brid...

Pressure data acquired from a blood pressure cuff during a blood pressure test are the starting point of noninvasive, single cuff blood pressure determination. Most blood pressure devices on the market use the single cuff method. This paper describes acquisition, analog and digital ...

This paper introduces an idea of a spread spectrum wireless sensor network with minimal current consumption and minimal input delay. As a first step towards this goal, this paper describes design and basic testing of needed base station receiver. The receiver can receive multiple&#...

A Dual Cooperative Drive Circuit (DC2) for Active Magnetic Bearing (AMB) units is proposed by this work. DC2 operates in dual modes: Digital Driving Mode (DDM) and Analog Driving Mode (ADM). The proposed DC2 manifests its superiorities in two aspects. (i). Compared to a tradit...

This paper proposes an intelligent monitoring system to adapt motorized high speed spindle on machine tools to meet the requirement of Industries 4.0, based on the techniques of power electronic engineering, mechatronics and reliability engineering. In this paper, a force-sensor-integrated spindl...

This paper describes the problems with using both Domain Name System Security (DNSSEC) (security extension to domain name system) validating Domain Name System (DNS) resolvers and NAT64/DNS64 transition mechanism. In this paper we also propose a solution how to solve the problem of...

The protection of internetworked systems by cryptographic techniques have crystallized as a fundamental aspect in establishing secure systems. Complementary, detection mechanisms for instance based on Intrusion Detection Systems has established itself as a fundamental part in holistic security eco-systems&...

This paper presents a new method for determining the ideal control signal to a state-space system such that one or more of its states track specified paths. The method is based on the concept of an inverse problem, whereby we determine the ideal input which is requir...

The Programmable generator of external triggering signal facilitates the automated recording of (quasi-) periodic or repeated physical processes. The device allows for the unmanned activation and tracking of the physical process and the control of connected recording system. The device automatica...

In this paper we present a fully energy autonomous water flow meter exploiting a low power controller and communications module in order to integrate the resulting device into an intelligent zero (externally provided) energy (i-ZEN) flow meter for the Internet of Things. We describ...

One of the main goals of the PilsenCUBE-II picosatellite project is to offer on board payload space for the student's experiments for the students from the various secondary schools of the western Bohemia. The students experiments have to be simple enough in scope of skill...

This paper presents hardware and software design of the payload for the PilsenCube picosatellite. The goal of the payload is to test the suitability of microcontroller with FRAM based code memory in the low Earth orbit environmental conditions. The proposed set of tests comprises&#...

The paper presents identification of temperature range and gain parameters of long wave infrared camera. Various characteristics of tunable parameters of micro bolometer focal plane array were acquired and the optimal operating point was accordingly selected. The camera temperature characteristic ...

Signal-flow graph (SFG) technique is a very useful tool for a hand analysis of a small and medium-size networks and/or subnetworks of large systems. Last days, the SFG's have been effectively used for the sensitivity solutions, too. This paper describes the comparison between&#...

The traditional power grid concept is suffering from lack of energy flow control mechanism. This is due to absence of distributed energy generation and storage nodes along the grid. With introduction of the Smart grid concept, this topic is addressed. However, such concept requires...

This paper present an AC/DC converter topology for sub 0.5 W applications. The presented results are based on preliminary transistor level simulations of the circuit topology in Cadence® Virtuoso® Analog Design Environment. The technology used was a 50 V CMOS process, while the...