Mojette Transform Based Real-Time Video Surveillance System
Author: P. Szoboszlai, Magyar Telekom, Hungary 1117 Budapest; J. Turán, Technical University of Kosice /Department of Electronics and Multimedia Communications, Košice, Slovak Republic; J. Vásárhelyi, University of Miskolc /Department of Automation, Miskolc, Egyetemváros, Hungary; P. Serfőző, Ericsson Hungary Ltd., Budapest Hungary
Abstract: One of nowadays most important topic is security, for companies, families and also local government. Although storing of the important data is mainly done in the same way as for years, due to that the stored data can be
corrupted easier. With the help of Mojette Transforms (MOT) compression capabilities, it also brings the property of redundancy as well. However MOT is used mainly in image processing applications, in this paper I would like to
introduce an alternative for real-time security system, which could be used in a more secure way then the current ones.
Design of a Modified Linear Quadratic Regulator for Vibration Control of Suspension Systems
Author: Ş. Yıldırım, Erciyes University, Faculty of Engineering,Mechanical Engineering Department, Kayseri, Turkey; G. Husi, University of Debrecen, Faculty of Engineering, Electrical Engineering and Mechatronics Department, Debrecen, Husngary.
Abstract: This paper is concerned with the construction of a prototype active vehicle suspension system for a one-wheel car model by using a modified Linear Quadric Regulator (LQR). The experimental system is approximately described by non-linear system with two degrees of freedom subject to excitation from a road profile. The active control at the suspension location is designed by using feedback constant gain controller structure. The experimental results show that the active suspension system with LQR more improves the control performance than standard PID controller. On the other hand, the results improved that the modified LQR has superior performance for controlling suspension systems in real time.
Keywords: Suspension system, Linear Quadratic Regulator, Vibration controlFrom Analog Filters to Digital Filters through Spice
Author: C. Rusu, L. Kovacs and L. Grama, Basis of Electronics Department, Faculty of Electronics, Telecommunications and Information Technology,
Technical University of Cluj-Napoca, Romania
Abstract: Traditionally IIR digital filters are designed using some analog filters described in time domain or transform domain; then analog filters can be converted to digital filters using appropriate transformation from s-domain to zdomain. In this paper we show the way to obtain a digital filter from a given netlist of an analog filter by skipping the transfer function description.
Projecting Tools for Fiber Optic Communication and Optically Powered Sensory Systems: Part 1
Author: J. Turán, Ľ. Ovseník, Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics,
University of Technology Košice and J. Vásárhelyi, Deptartment of Automation, University of Miskolc, University Campus, 3515 Miskolc, Hungary.
Abstract: In this paper (Part 1) projecting tool for fiber optic communication (ADAFOX) is presented. The expanding worldwide move towards optical communications indicates a long – term need for system designers proficient
in fiber optic design techniques. Consequently, designers must have an array of CAD and CAE analysis tools applicable to the lengthy and often-tedious calculations required for the evaluation of fiber optic systems. The proposed multimedia programme package ADAFOX for modelling of digital and analogue fiber optic networks, is a computational aid for fiber optic designers to use in the development of networks that conform to given system performance specifications. The basic properties, key elements and the system architecture are discussesd.
Projecting Tools for Fiber Optic Communication and Optically Powered Sensory Systems: Part 2
Author: J. Turán, Ľ. Ovseník, Department of Electronics and Multimedia Communications, Faculty of Electrical Engineering and Informatics,
University of Technology Košice and J. Vásárhelyi, Deptartment of Automation, University of Miskolc, University Campus, 3515 Miskolc, Hungary.
Abstract: In this paper (Part 2) projecting tools for optically powered sensory systems (OptiPower) is presented. Industrial barometric system i.e. systems to monitor air (or other gas) temperature, pressure and humidity are used in
various control and monitoring systems in mines, chemical plants, petrochemical industry, etc. The basic properties, key elements and the system architecture are discussesd.
Iris-Based Remote Medical Diagnosis System
Author: Adrian Lodin, Marius Vasile Ghiurcău, Lucian Iozan, Technical University of Cluj-Napoca, Basis of Electronics Department, Cluj-Napoca, Romania.
Abstract: In this paper we present a implementation of a system used to establish a disease diagnostic based on iris images analysis. A computerized iris texture and color analysis reveals texture regions which offer useful
information. A correlation between medical pathology and the located regions, point out a robust diagnosis. This automatically generated diagnosis needs user approval, thus making the system semi-automatic.
RF Based Location System
Author: Lucian Ioan Iozan, Adrian Lodin, Marius Vasile Ghiurcău, Technical University of Cluj-Napoca, Cluj-Napoca, Romania.
Abstract: The problem of locating an object based on RF sensors is not so simple. Despite all the disadvantages that this method brings, the technology is evolving rapidly. This paper proposes a new method of locating an object by
determining the time needed for the RF signal to propagate between two points. The principle is similar to the one used by the Global Position System (GPS). To suport the proposed method the paper presents experimental data
obtaind with the new system.
Application of TESPAR Method in Vehicle Sounds
Author: Marius Vasile Ghiurcau, Lucian Ioan Iozan, Adrian Lodin, Faculty of Electronics, Telecommunications and Information Technology, Cluj-Napoca, Romania
Abstract: This paper presents an implementation of Time Encoded Signal Processing and Recognition (TESPAR) algorithm in Matlab, for vehicle sounds. Tespar it’s very popular in speech recognition but it’s a quite new approach
in the vehicle sounds domain. The proposed system uses Tespar method combined with the archetypes technique. For low pass filtering, different Butterworth low pass filters were implemented. The experimental results show the efficiency of the Tespar method when dealing with vehicle sounds.
Self-stabilizing Distributed Spanning Tree: on implementation in JADE
Author: C.E. Costea, North University from Baia Mare/Electrotechnical Department, România
Abstract: Spanning-tree construction in distributed systems is a fundamental task which forms the basis for many other network algorithms. The paper presents a distributed version algorithm constructing a spanning tree with multiple initiators and an implementation based on agents communication concepts in Java Agent DEvelopment Framework.
Keywords: Intelligent control, Cooperative systems, Spanning tree, Multi-agent Systems.
An Embedded System on FPGA – Novel fastflex Data Controller Design
Author: T. J. Coggins and M. N. Cirstea, Anglia Ruskin University, Computing and Technology Department, Cambridge, UK
Abstract: Transmitton Ltd. is an electronic control equipment manufacturer for the railway and process control industries. The company has embarked on a process of modernising its products by developing a new range of their fastflex control system, in collaboration with Anglia Ruskin University. This paper presents a novel approach to the redesign of the existing discrete integrated circuits based controllers used by Transmitton in its fastflex range of products, using Field Programmable Gate Array (FPGA) to implement a novel Data Controller developed as an embedded System on a Programmable Chip (SoPC). Modern Electronic Design Automation (EDA) technniques are being employed, based on Hardware Description Languages (HDL) and targeting FPGAs for implementation. Advantages such as in-house design capability, company IP ownership, cost savings, compact implementation and high
speed of the circuit are obtained. Additional benefits consist of the ability to reuse components of the model in different data-processing applications (in combination with other models to form complex controller systems) and short time to market for new company products.
Keywords: FPGA, Modelling, Embedded Systems, SoPC..Uniform Coverage of Arbitrary–Shaped Connected Regions: Algorithm Validation
Author: William M. Spears, Swarmotics LLC, Laramie, WY 82070, USA and Paul M. Maxim, Wyoming Department of Transportation, Cheyenne, WY 82009, USA.
Abstract: In this article we present a novel algorithm for uniform coverage of a region. Surveillance, cleaning, and mine detection are some applications that would benefit from this type of algorithm. Prior work has claimed that this task is impossible to solve for non–convex regions [7]. Our algorithm enables robots to uniformly cover arbitrary path–connected regions, such that the robot movements are not predictable and the region periphery is not neglected. The algorithm assumes that robots are independent and is physics–based, relying on an analogy with mean free paths of particles. Validation of the algorithm is rigorously provided via simulation.
Keywords: uniform coverage, arbitrary–shaped connected regions, mean free path, Markov chains, simulation.Robotic Uniform Coverage of Arbitrary–Shaped Connected Regions: Robot Implementation
Author: Paul M. Maxim, Wyoming Department of Transportation, Cheyenne, WY 82009, USA and William M. Spears, Swarmotics LLC, Laramie, WY 82070, USA.
Abstract: In [16] we presented a novel algorithm for uniform coverage of a region, in simulation. Surveillance, cleaning, and mine detection are some applications that would benefit from this type of algorithm. Prior work has claimed that this task is impossible to solve for non–convex regions [7]. Our algorithm enables robots to uniformly cover arbitrary path–connected regions, such that the robot movements are not predictable and the region periphery is not neglected. The algorithm assumes that robots are independent and is physics–based, relying on an analogy with mean free paths of particles. In this article we extend the work to real–world experiments with a robot.
Keywords: uniform coverage, arbitrary–shaped connected regions, mean free path, Markov chains, robot experiments.