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Noise and Performances Analysis of Commerical Aircrafts using Artificial Neural Networks
1-6.Views:69Commerical aircrafts are very important part for airway travelling. In spite of high technology on aircrafts, there is still fatality accidents in the world. Because of this reason, it is very important criteria to analyse noises of main elements of the air-craft systems. In tis study, an aircraft’s main disturbances are analysed with proposed neural networks. Firstly, the noises of the jet, turbine and fan were measured from the aircraft. Secondly, the measured parameter values were predicted the proposed neural networks. The results of the proposed neuarl approaches were shown that this type of neural predictors will be employed to predict aircrafts unpredicted disturbances in real time applications.
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Ambilight alternatív megvilágítási technika Arduino által vezérelve & screen capturing alkalmazásfejlesztés DirectX API felhasználásával
1-4.Views:842004-ben, Philips által kifejlesztett Ambilight televíziók megjelenése nem hozott átütő sikert. 2010-ig mindösszesen négymillió ilyen tévét tudtak értékesíteni. A 3D technológiához hasonlóan az Ambilight szerű megvilágítási technológiák is igen megosztóaknak bizonyultak [1]. Projektemben egy Ambilight szerű, saját megvilágítási technika került megvalósításra, amihez az inspirációt az Ambilight technológia adta. A cél, hogy asztali számítógépes rendszereken is könnyen alkalmazható legyen és stabil-megbízható működést lehessen vele elérni, aminek fő platformja Windows operációs rendszer. A projekt megvalósítása során megismerésre került a DirectX API által biztosított, úgynevezett „screen capturing” technológia, valamint az Arduino és intelligens, LED-enként vezérelhető LED-szalag programozási ismerete is.
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Further Development of a Laser Interferometer
1-4.Views:130A more than 25 year old laser interferometer has been further developed in order to handle the signals also by computers. A TTL signal converter has been built in using an analog comparator unit type LM319. A National Instruments 6341 OEM measurement card was implemented too. The modernized laser interferometer has been verified with a precise Renishaw XL-80 interferometer. A vibrometer unit has been also calibrated with the updated interferometer.
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Android Based Autonomous Mobile Robot
1-4.Views:103The spreading of mobile robots is getting more significant nowadays. This is due to their ability to perform tasks that are dangerous, uncomfortable or impossible to people. The mobile robot must be endowed with a wide variety of sensors (cameras, microphones, proximity sensors, etc.) and processing units that makes them able to navigate in their environment. This generally carried out with unique, small series produced and thus expensive equipment. This paper describes the concept of a mobile robot with a control unit integrating the processing and the main sensor functionalities into one mass produced device, an Android smartphone. The robot is able to perform tasks such as tracking colored objects or human faces and orient itself. In the meantime, it avoids obstacles and keeps the distance between the target and itself. It is able to verbally communicate wit.
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Fault-tolerant Mechatronic Systems Development: a Biologically-inspired Approach
1-5.Views:79Modern mechatronics embeds sophisticated control systems to meet increased performance and safety requirements. Timely fault detection is a critical requirement especially in safety-critical mechatronic applications, where a minor fault can evolve to catastrophic situations. In such cases it looks a high demand for more reliable, safety and fault-tolerant mechatronic systems development. The alternative to overcome all these bottlenecks was inspired from the biological world. By adapting the remarkable surviving and self-healing abilities of living entities it is possible to develop novel hardware systems suitable to fulfill in all the most demanding high reliability operation criteria’s and requirements. The paper presents a biologicallyinspired computing system based on a Field Programmable Gate Array (FPGA) network developed for high reliability mechatronic applications. By choosing a design strategy relying on a multi-cellular concept which outlines the versatility of biologically inspired technologies, task allocation or reliability problems can be solved with high efficiency. Real-time simulations prove that by implementing methods that imitate biological processes, high performance fault-tolerant and selfhealing hardware architectures can be experimented and tested. The benefits of this approach are also confirmed by experiments performed on a laboratory-prototype hardware platform. The results underline that techniques which imitate bio-inspired strategies can offer viable solutions in high reliability mechatronic systems development.
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MARG Sensor Based Position Estimation for Periodic Movements
Views:115The research examined the fusion of signals from magnetometer, gyroscope and acceleration sensors (MARG sensor). The focus of the article is the sensor fusion by supervised learning, which is an estimate of the situation based on the parallel processing of different types of measured data in the case of periodic movements. The applicability of the learning algorithms was examined through a practical example of a pendulum.
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Home Compatible Omnidirectional Hovercraft Robot
1-7.Views:79As robots slowly integrate into home environments, synthesis of navigation, maneuverability and human acceptance is inevitable. This paper introduces a holonomic hovercraft design and the associated omnidirectional controlling algorithm. Hovercraft capabilities were investigated and discussed though design recommendations in relation to a robot compatible environment. The main aim of the design was to achieve better maneuverability, enhanced capabilities of overcoming obstacles, and the elimination of the drift phenomena that is a characteristic of conventional underactuated hovercraft designs, where rear rotor drive exerts thrust in one direction. Due to own inertia and the low friction of the air cushion, the hovercraft slips out in the original direction. Beyond solving this drift problem, another key feature of our design is the capability to be controlled in a global reference frame regardless of its orientation and desired trajectory with the help of a holonomic thruster drive. Orientation control is also implemented by turning the base of the thrusters. The design was implemented on a remote controlled hovercraft robot and proved to have a superior maneuverability over conventional hovercraft designs, thus our research greatly contributes to future human-robot cooperation in the living environment.
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Android Linux alapú alkalmazás fejlesztése & RFID beléptető rendszer monitorozása
1-7.Views:116Napjainkban az IoT eszközök egyre szélesebb körben vannak jelen az iparban és ez a trend kezd elterjedni a kis- és középvállalkozások körében is. Az efféle új technológiai ágazatok az Industry 4.0 megjelenése óta robbanásszerű növekedésnek indultak. Az informatikusok számára új kihívást jelent ez az új irányzat, mivel a korábbinál alaposabb ismeretekre van szükségük a számítógépes hálózatok területén, valamint a hálózatra kötött eszközöket nemcsak programozniuk kell megtanulni, de ismerniük kell azok egyes elemeit és működésüket. Projekt során egy olyan beléptető rendszert került létrehozásra, ami nemcsak a nagyvállalatok, de a kisebb vállalkozások, valamint magánszemélyek számára is megfizethető, és könnyen kezelhető.
