Electrical Engineering

Get Echtzeit Objekterkennung auf low power embedded systems PDF

By Roland Oberhammer

ISBN-10: 3638916634

ISBN-13: 9783638916639

Diplomarbeit aus dem Jahr 2007 im Fachbereich Elektrotechnik, observe: 1.0, Technische Universiät Wien (Institut für Computertechnik), fifty one Quellen im Literaturverzeichnis, Sprache: Deutsch, summary: Objekterkennung ist ein weit gefächertes Gebiet und umfasst eine Vielzahl von Verfahren zur Vermessung und Kategorisierung von Objekten mittels unterschiedlichster Sensorsysteme, die je nach Umgebung, Beleuchtung und paintings der Objekte die detektiert oder vermessen werden sollen, unterschiedlich geeignet sind und ensprechend ihre Vor- und Nachteile besitzen. Diese Diplomarbeit beschäftigt sich mit der Objekterkennung im Rahmen der Robotik, speziell im Roboterfußball, welcher sich in den letzten Jahren, aufgrund der sich daraus ergebenden Forschungsmöglichkeiten, immer größerer Beliebtheit erfreut.

Der Roboter soll den Regeln der Mirosot Kategorie der internationalen service provider zur Förderung des Roboterfußballs FIRA entsprechen. Als Sensor für die Objekterkennung dient eine Digitalkamera. So wird in dieser Arbeit ausgehend von den Einschränkungen in den Abmessungen, bestimmt durch die Regeln der Kategorie Mirosot, eine geeignete Hardware-Plattform erarbeitet und Gründe für den Entscheid zur Wahl bestimmter Komponenten dargelegt.

Ausgehend von gängigen Methoden der Bildverarbeitung und der Aufwandsabschätzung für diese Algorithmen, wird nach einem Softwarekonzept gesucht, das auf der gewählten Plattform den gestellten Anforderungen entspricht. Ziel ist in erster Linie die Erkennung des Spielballes, ein oranger Golfball und der farbig markierten Tore. Da Standardverfahren aber nicht auf die spezielle optimiert sind und auch ansonsten hohe Anforderungen an die Rechenleistung stellen, wird ein Konzept vorgestellt, das es erlaubt einfache geometrische Formen wie Kreise oder Rechtecke zu detektieren und zu vermessen.

Dieses neue Konzept greift teilweise auf in der Fachliteratur bekannte Methoden zurück die hierfür entsprechend optimiert werden, enthält aber auch einen neuen Ansatz, der es erlaubt den Anforderungen durch die hohe Dynamik der Bewegung der zu detektierenden Objekte Rechnung zu tragen. So entstand ein Bilderkennungssystem mit einer Erkennungsrate von 60 Bildern professional Sekunde. Für den Spielball liegt die Genauigkeit bei +/- 1 mm in einer mittleren Entfernung von 50 cm. Dies bei einem durchschnittlichen Leistungsverbrauch von 1,5 Watt und Dimensionen der die in einem Würfel von 7,5 cm Kantenlänge Platz finden.

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Download e-book for iPad: Underground Cable Thermal Backfill: Proceedings of the by S. A. Boggs,F. Y. Chu,H. S. Radhakrishna

By S. A. Boggs,F. Y. Chu,H. S. Radhakrishna

ISBN-10: 0080253873

ISBN-13: 9780080253879

ISBN-10: 1483123138

ISBN-13: 9781483123134

Underground Cable Thermal Backfill records the lawsuits of the ""Symposium on Underground Cable Thermal Backfill,"" held in Toronto, Canada, 17-18 September 1981. The symposium introduced jointly study, layout, and set up engineers from utilities, cable brands, and universities to provide and speak about advancements within the box.
The contributions of researchers on the symposium are prepared into 5 chapters. bankruptcy 1 offers an summary of the cutting-edge of cable backfill fabrics and soil thermal estate measurements. The papers in bankruptcy 2 take care of advancements in cable backfill fabrics. those contain fabrics stabilized with moisture substitutes, pumpable fabrics, and fabrics stabilized with certain water. bankruptcy three covers thermal estate measurements of soils and backfills. throughout the automation of measurements and research utilizing microprocessor established tools and higher keep watch over of experimental stipulations, great advancements were made within the sector of size expertise. bankruptcy four stories advancements within the examine of soil thermal balance and the implication thereof for thermal cable layout. bankruptcy five discusses a number of features of thermal cable layout, together with tools for incorporating old climate documents to foretell worst case soil and backfill thermal conductivities.
This quantity may still function an invaluable creation to the topic of cable thermal layout for engineers inquisitive about underground transmission and distribution systems.

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Luis Castañer,Santiago Silvestre's Modelling Photovoltaic Systems Using PSpice PDF

By Luis Castañer,Santiago Silvestre

ISBN-10: 0470845279

ISBN-13: 9780470845271

ISBN-10: 0470845287

ISBN-13: 9780470845288

Photovoltaics, the direct conversion of sunshine from the sunlight into electrical energy, is an more and more very important technique of dispensed energy iteration. The SPICE modelling instrument is sometimes utilized in the improvement of electric and digital circuits. whilst utilized to the modelling of PV platforms it presents a method of knowing and comparing the functionality of sun cells and systems.
the vast majority of books at present out there are established round dialogue of the sun mobilephone as semiconductor units instead of as a method to be modelled and utilized to real-world difficulties. Castaner and Silvestre offer a complete remedy of PV method expertise research. utilizing SPICE, the instrument of selection for circuits and electronics designers, this booklet highlights the expanding significance of modelling concepts within the quantitative research of PV platforms. This certain therapy provides either scholars engineers, with the skill to appreciate, evaluation and improve their very own PV modules and systems.
* presents a distinct, self-contained, consultant to the modelling and layout of PV systems
* offers a pragmatic, software orientated method of PV know-how, whatever that's lacking from the present literature
* makes use of the commonly recognized SPICE circuit-modelling instrument to examine and simulate the functionality of PV modules for the 1st time
* Written by means of revered and recognized teachers within the field

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Read e-book online Control in Power Electronics and Electrical Drives: PDF

By R. Zwicky

ISBN-10: 0080305369

ISBN-13: 9780080305363

comprises ninety seven papers which offer a important assessment of the most recent technical suggestions during this swiftly increasing box. components of improvement which obtain specific consciousness comprise the emergence of energy switching transistors, the appliance of microprocessors to legislation and keep an eye on of static converters and electric drives, using extra subtle keep watch over suggestions and the usage of energy electronics in new software fields.

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Read e-book online Electrotechnical Systems: Calculation and Analysis with PDF

By Igor Korotyeyev,Valerii Zhuikov,Radoslaw Kasperek

ISBN-10: 1138117757

ISBN-13: 9781138117754

ISBN-10: 1420087096

ISBN-13: 9781420087093

Advances in mathematical tools, desktop expertise, and electrotechnical units particularly proceed to bring about the production of courses which are resulting in elevated exertions productiveness. Mathematical and simulation programs—and different courses that unite those operations—provide the facility to calculate transitional, steady-state methods, balance stipulations, and harmonic composition, and are frequently used to investigate procedures in energy digital structures.


Electrotechnical platforms: Calculation and research with Mathematica and PSpice explores the possibility of such programs—Mathematica and ORCAD (PSpice)—as they're used for research in a variety of parts. The authors speak about the formula of difficulties and the stairs of their answer. They specialize in the research of brief, steady-state procedures and their balance in non-stationary and nonlinear platforms with DC and AC converters. All difficulties are solved utilizing Mathematica, and application codes are provided. The authors use ORCAD (PSpice) to match the consequences bought by means of utilizing Mathematica and to illustrate the peculiarities linked to its use.


This e-book in actual fact and concisely illustrates represented expressions, variables, and features and the overall software of the mathematical pocket Mathematica 4.2 for the research of the electromagnetic tactics in electrotechnical platforms. will probably be a worthy addition to the library of a person operating with electrotechnical systems.

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Download e-book for iPad: „Öltank“ – Simulation einer Real-Situation (German Edition) by Trinus Bußmann

By Trinus Bußmann

ISBN-10: 3640800265

ISBN-13: 9783640800261

Unterrichtsentwurf aus dem Jahr 2010 im Fachbereich Elektrotechnik, Berufsbildende Schulen Emden (BBS Emden), Sprache: Deutsch, summary: Zu Beginn der Stunde werde ich Transparenz schaffen, indem ich den Schülern das heutige Stundenthema „Öltankanlage - Simualtion einer Realsituation“ vorstelle. Zudem zeige ich den Stundenverlauf auf einem Flipchartbogen, um die Schüler für die heutige Stunde zu sensibilisieren.
Ich teile die Klasse in drei heterogene Leistungsgruppen ein. Ich hätte auch eine Partnerarbeit wählen können, doch aus Zeitgründen ist eine Gruppenarbeit mit einer Gruppengröße von three – four Schülern effektiver.
Nachdem ich die Schüler in leistungsheterogene Gruppen eingeteilt haben, werden die Arbeitsblätter ausgeteilt.
Den schriftlichen Arbeitsauftrag werde ich von Aike vorlesen lassen, damit er motiviert ist und eine confident Einstellung zur Aufgabe entwickelt. Danach lasse ich noch einmal Kai mit eigenen Worten wiedergeben, used to be als Arbeitsauftrag zu machen ist. Durch gezieltes Ansprechen der beiden Schüler wird noch einmal das Interesse zur Aufgabe geweckt. Alle Schüler kennen bereits dieses Verfahren, da ich es bei jeder Stunde je nach scenario einstreue.

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Download e-book for iPad: BWL für Ingenieure und Ingenieurinnen: Was man über by Andreas Daum,Wolfgang Greife,Rainer Przywara

By Andreas Daum,Wolfgang Greife,Rainer Przywara

ISBN-10: 3834807907

ISBN-13: 9783834807908

Dieses Lehrbuch vermittelt praxisorientiert die Grundkompetenz für Ingenieure, um im Berufsleben in betriebswirtschaftlich geprägten Organisationen bestehen zu können. Es werden die Unternehmensfunktionen behandelt, die sich mehr oder weniger in jeder enterprise finden. Dabei wird auf die Darstellung im Zusammenhang und den Praxisbezug großer Wert gelegt. Durch Beispiele wird die Verständlichkeit erhöht und der move auf eigene betriebliche Situationen erleichtert.

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What Every Engineer Should Know About Excel - download pdf or read online

By J. P. Holman,Blake K. Holman

ISBN-10: 0849373263

ISBN-13: 9780849373268

ISBN-10: 1138423025

ISBN-13: 9781138423022

With the various software program applications on hand at the present time, it is easy to miss the computational and photos functions provided by way of Microsoft® Excel™. The software program is almost ubiquitous and figuring out its functions is a gigantic gain to engineers in virtually any box and in any respect degrees of expertise. What each Engineer should still learn about Excel deals in 9 self-contained chapters a realistic consultant to the good points and capabilities that may be used, for instance, to resolve equations and structures of equations, construct charts and graphs, create line drawings, and practice optimizations. the writer makes use of examples and screenshots to stroll you thru the stairs and construct a powerful knowing of the material.

With this ebook, you'll find out how to…

  • Set up the keyboard for direct access of such a lot math and Greek symbols
  • Build a default scatter graph that's acceptable to most elementary shows with little beauty modification
  • Apply many sorts of codecs to regulate the cosmetics of graphs
  • Use 3D floor and region charts for facts and practical representations, with linked beauty adjustments
  • Correlate information with numerous varieties of practical relations
  • Use line drawing instruments to build basic schematics or different diagrams
  • Solve linear and nonlinear units of equations utilizing a number of methods
  • Curve pupil grades utilizing Excel likelihood functions
  • Model equipment functionality utilizing sorts of regression research related to a number of variables
  • Manipulate Excel monetary functions
  • Calculate retirement accumulation with variable contribution cost and retirement payouts to check raises in inflation
  • Apply Excel equipment for optimization issues of either linear and nonlinear relations
  • Use pivot tables to govern either experimental info and analytical relationships
  • Calculate experimental uncertainties utilizing Excel
  • And a lot more!
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    Download e-book for iPad: Electric Relays: Principles and Applications (Electrical and by Vladimir Gurevich

    By Vladimir Gurevich

    ISBN-10: 0849341884

    ISBN-13: 9780849341885

    electrical relays pervade the electronics that dominate our international. They exist in lots of types, satisfy many jobs, and every have their very own behavioral nuances and peculiarities. thus far, there exists no complete reference surveying the huge spectrum of electrical relays, store one-Electric Relays: ideas and purposes. This formidable paintings isn't just distinctive in its scope, but additionally in its useful strategy that makes a speciality of the operational and sensible elements instead of on thought and mathematics.

    Accomplished engineer Dr. Vladimir Gurevich builds the presentation from first ideas, unfolding the recommendations and buildings through dialogue in their ancient improvement from the earliest rules to trendy applied sciences. He makes use of a show-not-tell procedure that employs approximately 1300 illustrations and divulges invaluable perception in accordance with his wide adventure within the box. The booklet starts off with the fundamental ideas of relay building and the key practical elements, akin to touch and magnetic platforms. Then, it devotes person chapters to many of the forms of relays. the writer describes the rules of functionality and development for every style in addition to positive aspects of numerous relays belonging to a sort that function on diversified principles.

    Remarkably thorough and uniquely functional, electrical Relays: ideas and functions serves because the ideal advent to the plethora of electrical relays and gives a quick-reference consultant for the skilled engineer.

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    Get RFID Handbook: Applications, Technology, Security, and PDF

    By Syed A. Ahson,Mohammad Ilyas

    ISBN-10: 1420054996

    ISBN-13: 9781420054996

    Radio Frequency id (RFID) tagging is now utilized by the dep. of security and lots of of the world’s greatest outlets together with Wal-Mart. As RFID keeps to infiltrate industries around the globe, corporations needs to harness a transparent realizing of this expertise that allows you to maximize its power and safeguard opposed to the capability dangers it poses.

    The RFID guide presents an outline of RFID know-how, its linked safety and privateness hazards, and suggested practices that may permit enterprises to gain productiveness advancements whereas additionally holding delicate info and the privateness of people.

    Expert members current a bunch of purposes together with RFID enabled automatic receiving, triage with RFID for large incidents, RFID and NFC in terms of cellphones, and RFID applied sciences for conversation robots and a privateness conserving video surveillance procedure. The remarkable insurance additionally contains particular descriptions of adaptive splitting protocols in addition to tree-based and probabilistic anti-collision protocols.                                                                                                                       

    Drawing on its distinctive editors and world-renowned individuals, this exceptional instruction manual serves because the final reference on RFID, from simple learn innovations to destiny applications.

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