Sunday, June 15, 2008

art competion

Call for premiered art competition!


The Open Wall, a 90 x 30 pixels resolution 201 inch LED screen...

ITovation, a project by the Faculty of Information Technology,
Mathematics and Electrical Engineering, NTNU, and Trondheim Electronic
Arts Centre, TEKS, invites you to an open art competition!

The Open Wall is a wall-mounted LED installation consisting of 96
circuit boards containing 25 orange LED lights each, 2400 in total,
with 5 cm distance in all directions to the next light. The wall is
480 cm long and 180 cm high. The goal the Open Wall is to inspire
reflection about Information and Communication Technology with focus
on openness, copyrights, and authorship. The source code governing the
Open Wall is available as an open source project on sourceforge.


Concept

The artist perspective for the contest is to exploit the artistic
potential of possible technologies that can be implemented in the The
Open Wall. Boundaries between digital art expressions and computer
gaming are vanishing. We will in particular ask the contesters to
investigate in artistic concepts that applies to the wall being an
interactive and "living" object.

We aim at raising awareness and curiosity about multidisciplinary
issues at the intersection between art and technology, using The Open
Wall as a token of possibilities that lies herein. The artistic
expressions may origin from making the wall being part of a
communicational procedure with an audience at sight or/and remote
located, as part of an interactive dialog.

Project contributions can be expressed as a combination of sensor and
actuator technologies that by example reads data from sources like
sound, movement, climate, GPS, social mapping etc., as well as other
methods for fetching external data information. Actuators in addition
to the LEDs, if you find that necessary for your project, can be
anything from sound output to robotic technologies. Your imagination
is the limit!

The suggested artistic concept and content will be the jury's main
factor to consider! This means that though the technical aspects are
vital for realizing this project, the contest will focus on the
artistic concepts and ideas. We are therefore accepting contributions
where the techniques necessary for realizing your project aren't fully
developed or in detail described. The jury expects nevertheless all
technologies suggested by the contesters to be technical realizable.

The Open Wall project provides an interface for exploring
possibilities for further development of artistic expressions used in
permanent public installations. This contest is part of Trondheim
Electronic Arts Centre´s strategy for trying to develop permanent
interactive installations in the public space of the Trondheim region.
The Open Wall can therefore be considered as a fragment of a greater
installation. As this is a concept competition, we will consider
contributions that aren't limited in size to this particular physical
wall as such.

Contesters will have the opportunity to start a dialog with Trondheim
Electronic Arts Centre independently of the contest result for further
development of projects.


Prices

The price award will take place at this year's festival for art and
technology in Trondheim, Trondheim Matchmaking, the 16th - 18th of
October.

The contest is divided in two price categories:

- The Open Wall Open Contest.

1st price 2000 €, 2nd price 1500 €, 3rd price 1000 €.

- The Open Wall Student Contest.

In addition to automatically participate in the Open Contest,
contributions from NTNU students will be separately evaluated free of
the guidelines for the Open Contest. Innovative technologies,
outstanding use of tech tools and playful interactions are welcomed.
Surprise the jury!

3 prices of 2000 NOK each.


The jury

The jury consist of five members:

* Stacey Spiegel, Artist, President, Parallel World Labs Inc
* Trine Eidsmo, Artist, Director, Trondheim Electronic Arts Centre
* Per Platou, Artist, Coordinator, The Production Network of
Electronic Arts Norway
* Bjørn Alterhaug, professor, Department for Music, NTNU
* Letizia Jaccheri, professor, Department of Computer and
Information Science, NTNU


Deadline

Latest date for submissions is Monday the 15th of September 2008.



Content

Contest submissions must contain a 2-300 words description of your
project in addition to technical information, all formatted as PDF
documents. Other necessary illustrative material of your choice are
accepted. All material must be digital, and sent by email to
thewall@list.stud.ntnu.no with "The Open Wall" in the subject.

In addition you can deliver software and other necessary files for
running your project on the wall if you like. The technical
documentation of the project is available. The source code governing
the Open Wall is available as an open source project on sourceforge.



Contact information

* e-mail: thewall@list.stud.ntnu.no.

All about the competition: http://org.ntnu.no/thewall

Other links:
http://prosjekt.idi.ntnu.no/sart
http://teks.no


We are looking forward!

Espen Gangvik, project manager, TEKS

Letizia Jaccheri, professor, NTNU

Bjarne Muri, student, organization Online, NTNU

Saturday, March 08, 2008

week 2 - iead

week 2:
stochastic processes
properties-> stationarity (weak and strong)
white process, wiener process .
Frequency characterization: spectrum and spectral density
a linear system with a stochastic process as input -> properties of outupt
Properties of ARMA , MA and AR processes

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week2 -ca

second week:
lapace and zeta transform
solution in the s-domain
solution in the z-domain

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Tuesday, February 26, 2008

week 1 - iead

aleatory variables.
Stochastic processes
probability concepts
joint probability
independence
uncorrelation
Gaussian variables
Uniform distribution

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week 1

First week of lessons:
control problem : reference signal and controlled variables.
Uncertianty and noise signals
Examples:
-how to keep a car at a certain constant velocity
-robots
-inventory problems

Role of the mathematical modelling
concept of state
examples considered:

how
prediction of the number of diplomats in a 3-year school
prey-predator
microprocessor with swap and mean operation
RLC circuit
mass-spring model

Input to state description vs state model description

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Wednesday, June 13, 2007

risultati

Tuesday, June 12, 2007

risultati prova laboratorio

Wednesday, June 06, 2007

sintesi non ''a muzzo''

per chi non vuol fare la sintesi per tentativi a caso (a muzzo)
consiglio le formule riportate in

http://www.dii.unimo.it/Zanasi/didattica/contr_B_NOD/Controlli_B_NOD_file/Reti_correttrici_030602.pdf

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Friday, June 01, 2007

sintesi per tentavi -chiarimenti

l'esercizio in questione è quello utilizzato a lezione per spiegare la sintesi diretta
data la specifica di sovraelongazione massima percentuale = 20
il range del margine di fase corrispondente al nostro esercizio è [34.4° - 55°]
dallo studio della L(s), preliminare alla determinazione della rete anticipatrice/ritardatrice, si ricava che il margine di fase è = -40°. Il dubbio è: questo valore va preso in valore assoluto, per cui è già all'interno del range desiderato, oppure no?

devi andare a vedere la fase di fase(L(jwd)) dove wd e'la w di attraversamento desiderata
wd appartenetee a [35-55].

Per esempio fase(L(j45))poi calcoli il margine corrispondente:

180-| fase(L(j45))|

e questo valore ti da il margine di fase

Se ho capito bene i -40 che dici tu vanno letti come 40.

Inoltre ha dei suggerimenti per la ricerca dei poli-zeri da utilizzare nella rete anticipatrice/ritardatrice?

Dipende cosa hai bisogno se hai bisogno di aumentare o abbassare fase
se hai bisogno di aumentare o diminuire guadagno (in modo da spostare la pulsazione di
attraversamento verso destra o verso sinistra)

Una volta soddisfatte le specifiche, dobbiamo solo verificare la stabilità del sistema retroazionato con il criterio di Bode?

Se le specifiche sono anche su B3 e Mr o ypo magari vedere anche ad anello chiuso se sono soddisfatte.

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