Articles

• Overview of Modern Teaching Equipment that Supports Distant Learning

  1-22.

  Csongor Márk Horváth

  Trygve Thomessen

  Gábor Sziebig

  Views:

  260

  Laboratory is a key element of engineering and applied sciences educational systems. With the development of Internet and connecting IT technologies, the appearance of remote laboratories was inevitable. Virtual laboratories are also available; they place the experiment in a simulated environment. However, this writing focuses on remote experiments not virtual ones. From the students’ point of view, it is a great help not only for those enrolling in distant or online courses but also for those studying in a more traditional way. With the spread of smart, portable devices capable of connection to the internet, students can expand or restructure time spent on studying. This is a huge help to them and also allows them to individually divide their time up, to learn how to self-study. This independent approach can prepare them for working environments. It offers flexibility and convenience to the students. From the universities’ point of view, it helps reduce maintenance costs and universities can share experiments which also helps the not so well-resourced educational facilities.

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  233

• Brushless DC Motor Modeling Using Bond Graph Method and Control using LabVIEW: Speed control based calssical PID control

  1-5.

  Ammar Alsabbagh

  Péter Tamás Szemes

  Abdulkader Baki

  Views:

  262

  This paper aims to simulate and control a three-phase Brushless DC Motor. Bond Graph method has been used to obtain fast and simple dynamic model. The system has been controlled by classical PID controller. All the paper results were fulfilled using LabVIEW program.

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  238

• Development of Gait Recognition in NI LabVIEW

  1-3.

  Dániel Salánki

  Kornél Sarvajcz

  Views:

  143

  Nowadays, one of the most significantly improving area in security is the world of biometric identifiers. Within the biometric identifiers, the research group is working with the gait recognition speciality. The research group realized a complex gait recognition system in NI LabVIEW, that can detect more reference points simultaneously with a universal camera and is capable of suiting predetermined curves on the detected points. Moreover, the program can compare the functions suited on the reference curve and the actual curve and evaluate if the two gait images are the same or not. In the program there is a saving and a reloading function which cont ributes to the production of the reference gait image. The foot analysis program before the gait recognition is designed to improve accuracy. The self-developed gait recognition system was tested on more persons and the False Acceptance Rate (FAR) was zero.

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  105

• Design of Neural Predictor for Performance Analysis of Mountain Bicycles

  1-6.

  Şahin Yildirim

  Menderes Kalkat

  Views:

  187

  In recent years, bicycle races, along with the crest of the high technology continues to increase. Because of this increased races, performance of bicycles, in both biological and mechanical terms, is extraordinarily important and efficient. In terms of the ratio of cargo weight a bicycle can carry to total weight, it is also a most efficient means of cargo transportation. In spite of advanced technology, there are still some problems on bicycles during working conditions and road roughness such as on the mountain from tire and mechanical parts. In this investigation, a extraordinary designed with fiber-carbon body and light bicycle is tested on mountain road conditionswith prescribed trajectory on the mountain for different elevation, speed, hearth rate, bike cadence and average temperature. The real time measured parameters are predicted with proposed two types of neural networks for approaching real time neural network predictors. The results of the proposed neural network have shown that neural predictor has superior performance to adopt the real time bicycle performance.

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  161

• Analysis of an Induction Machine by the Finite Element Method

  1-5.

  Miklós Kuczmann

  Krisztián Gadó

  Sándor Horváth

  István Vajda

  Dániel Marcsa

  Anouar Belahcen

  Views:

  226

  Induction machines are popular in every segments of industry due to their simple construction and robust operation. Asynchronous machines have been being built in electric vehicles, too. The paper presents the two dimensional analysis of a voltage-fed induction machine by different kind of finite element software. The results have been compared.

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  118

• Last Generation Mechatronics: a Two-level Platform-based Reconfigurable Technology Approach

  1-7.

  Csaba Szász

  Views:

  124

  As is well known mechatronic systems currently being designed and developed are often difficult multidisciplinary undertakings. Based on the intrinsic coupling of different implementation technologies, efficient design of mechatronic systems is of primordial importance for development of next generation industrial products. This paper is focused to current and future technological trends aimed to improve the design and implementation processes of mechatronic systems in an increasingly harsh industrial environment. Special attention is dedicated to introduction of the two-level platform-based reconfigurable technology approach. This strategy efficiently combines major advantages of both the hardware and software platform-based development trends in modern mecatronic systems. In order to support the unfolded theoretical arguments a last generation and versatile mechatronic system development is presented and discussed in the paper. The mentioned trends can be used as rough orientation for future mechatronic systems research and implementation activities.

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  98

• Modelling and Simulation of Stepper Motor For Position Control Using LabVIEW

  1-5.

  Ahmet Mehmet Karadeniz

  Malek Alkayyali

  Péter Tamás Szemes

  Views:

  1763

  This paper presents hybrid stepper motor (is a type of stepping motor) modelling and simulation which is widely used a kind of motor in industrial applications. In this study, the stepper motor was modelled using bond graph technique and simulation for desired position was executed on LabVIEW
  graphical interface. Then, firstly a convenient PID controller was designed for position, speed and current and PID close loopresponse was obtained for position control. Then, PID parameters for each controller were arranged separately to obtain good response Secondly, Fuzzy Logic controller applied to
  the system and its response was obtained. Finally, both responses are compared. According to comparison, it was observed that Fuzzy Logic controller’s response is better than PID’s. (In this paper, all shown responses were observed for 120 degree desired position)

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  738

• A Review Regarding Deep Learning Technology in Mobile Robots

  1-5.

  Vlad Ovidiu Mihalca

  Flaviu Birouaș

  Florin Avram

  Arnold Nilgesz

  Views:

  113

  Deep Learning usage is spread across many fields of application. This paper presents details from a selected variety of works published in recent years to illustrate the versatility of the Deep Learning techniques, their potential in current and future research and industry applications as well as their state-of-the-art status in vision tasks, where their efficiency is experimentally proven to near 100% accuracy. The presented applications range from navigation to localization, object recognition and more advanced interactions such as grasping.

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  90

• Issues Regarding Management of Machining Tools, Parts and Sub-Assemblies in Flexible Manufacturing Cells

  1-4.

  Florin Avram

  Flaviu Birouaș

  Arnold Nilgesz

  Vlad Ovidiu Mihalca

  Views:

  137

  This paper will be presenting the issues regarding management of machining tools, parts and sub-assemblies in the industrial environment present in flexible manufacturing cells, flexible manufacturing systems or flexible manufacturing multi-systems. In modern the factory environment, management plays vital role in assuring a quality on demand, cost effective and timely production planning. Without proper management performance is not guaranteed or controlled in a manufacturing cell system.

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  69

• A Review Regarding Hand Exoskeleton Technologies for Rehabilitation

  1-5.

  Flaviu Birouaș

  Florin Avram

  Arnold Nilgesz

  Vlad Ovidiu Mihalca

  Views:

  532

  This paper will be presenting a short review regarding robotic rehabilitation devices. The focus of rehabilitation are aimed for the human hand, mainly for regaining motor functions by the aid of robotics. A comprehensive statistical study will be presented regarding tendencies in the field of rehabilitation,  medical robotics and technologies used for robotic exoskeletons based on existing published papers. A short review on existing practical examples is also presented. In the final part of the papers a short comparison is debated between soft robotic devices and rigid robotic devices used in hand rehabilitation. After presenting the review of the current state of the art a conclusion regarding the future direction of rehabilitation devices is proposed.

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  289

• PID Controller Tuning Optimization with Genetic Algorithms for a Quadcopter

  1-7.

  Komal Khuwaja

  Noor-u-Zaman Lighari

  Ioan Constantin Tarca

  Radu Catalin Tarca

  Views:

  770

  This paper is focused on the dynamic of mathematical modeling, stability, nonlinear gain control by using Genetic algorithm, utilizing MATLAB tool of a quadcopter. Previously many researchers have been work on several linear controllers such as LQ method; sliding mode and classical PID are used to stabilize the Linear Model. Quadcopter has a nonlinear dynamics and unstable system. In order to maintain their stability, we use nonlinear gain controllers; classical PID controller provides linear gain controller rather than nonlinear gain controller; here we are using modified PID control to improve stability and accuracy. The stability is the state of being resistant to any change. The task is to maintain the quadcopter stability by improving the performance of a PID controller in
  term of time domain specification. The goal of PID controller design is to determine a set of gains: Kp, Ki, and Kd, so as to improve the transient response and steady state response of a system as: by reducing the overshoot; by shortening the settling time; by decrease the rise time of the system. Modified PID is the combination of classical PID in addition to Genetic Algorithm. Genetic algorithm consists of three steps: selection, crossover, and mutation. By using Genetic algorithm we correct the behavior of quadcopter.

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  516

• Speed Control of Three Phase Induction Motor Using Scalar Method and PID Controller

  1-5.

  Aram Nasser

  Péter Tamás Szemes

  Views:

  247

  This paper presents the speed control of a three-phase induction motor using the scalar control method with PID controller. The system maintains a constant volt to frequency ratio for any change in the load. We also used vector control method and bond graph to describe the motor model, as well as its behavior. Finally, we simulated the system using Labview, where the good results of using the scalar control technique are shown.

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  113

• Application of OptiTrack Motion Capture Systems in Human Movement Analysis: A systematic Literature Review

  1-9.

  Gergely Nagymáté

  Rita M. Kiss

  Views:

  4268

  With the spreading of motion analysis decisions to invest into a new system demand scientific reference applications. The aim of the present systematic review is to reveal the biomechanical scientific applications of OptiTrack motion capture systems and to overview documented usage conditions and purposes. Six major scientific literature databases were used (PubMed, PubMed Central, ScienceDirect, IEEE Xplore, PLOS and Web Of Science). An OptiTrack camera system had to be used for human or biologically related motion capture. A total of 85 articles were included, 4 out of which dealt with the validation
  of OptiTrack systems and 81 utilized the system for biomechanical analyses. The data analysed and extracted from the system validation studies included: description of the validated and the reference system, measured features and observed errors. The data extracted from the utilizing studies also included: OptiTrack application, camera type and frequency, marker size, camera number, data processing software and the motion studied. The review offers a broad collection of biomechanical applications of OptiTrack motion capture systems as scientific references for certain motion studies. The review also summarizes findings on the accuracy of the systems. It concludes that the method descriptions of system usage are often underspecified.

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  2813

• Intelligent Space Environment for Ethorobotics

  1-5.

  Balázs Nagy

  Štefan Gubo

  Views:

  126

  This paper presents a setup using a mobile robot agent in an intelligent space. The proposed concept based on a holonomic driving system mount on the robot. Due to the driving system different moving behaviours and path planning algorithms can be tested. To examine the robot movements and provide the needed support the robot agent was placed in a Motion capture system. The special environment around the robot is a motion track system which can track the movements of agents in its space via markers.

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  121