Péter Fankhauser: Meet Rezero, the dancing ballbot

Prevoditelj: Jelena Horvat Recezent: Tilen Pigac - EFZG

Let me introduce to you Rezero.

Dopustite mi da vam predstavim Rezera.

This little fellow was developed

Ovog malog prijatelja izradila je

by a group of 10 undergraduate students

grupa od 10 studenata

at the Autonomous Systems Laboratory

u Laboratoriju autonomnih sustava

at ETH-Zurich.

pri Švicarskom federalnom institutu za tehnologiju u Zürichu.

Our robot belongs to a family of robots

Naš robot pripada porodici robota

called Ballbots.

koja se zove ballbots.

Instead of wheels, a Ballbot is balancing

Umjesto na kotačima, ballbot balansira

and moving on one single ball.

i kreće se na jednoj lopti.

The main characteristics of such a system is

Osnovna značajka ovakvog sistema je

that there's one sole contact point to the ground.

da postoji samo jedna dodirna točka s tlom.

This means that the robot

To znači da je robot

is inherently unstable.

sam po sebi nestabilan.

It's like when I am trying to stand

To je kao kad bih ja pokušao stajati

on one foot.

na jednoj nozi.

You might ask yourself, what's the usefulness

Mogli biste se pitati, kakva korist

of a robot that's unstable?

od toga da je robot nestabilan?

Now we'll explain that in a second.

Objasnit ću to za koji trenutak.

Let me first explain how Rezero

Dopustite mi da prvo objasnim kako Rezero

actually keeps his balance.

zapravo održava ravnotežu.

Rezero keeps his balance by constantly

Rezero održava ravnotežu tako da konstantno

measuring his pitch angle with a sensor.

senzorom mjeri kut nagiba.

He then counteracts and avoids toppling over

On tada suzbija i izbjegava prevrtanja

by turning the motors appropriately.

okretanjem motora na odgovarajući način.

This happens 160 times per second,

To se događa 160 puta u sekundi

and if anything fails in this process,

i ako bi štogod zakazalo u tom procesu,

Rezero would immediately fall to the ground.

Rezero bi odmah pao na tlo.

Now to move and to balance,

Da bi se kretao i balansirao,

Rezero needs to turn the ball.

Rezero mora okretati loptu.

The ball is driven by three special wheels

Lopta je vođena s tri specijalna kotača

that allow Rezero to move into any direction

koja dopuštaju Rezeru da se kreće u bilo kojem smjeru

and also move around his own axis

i da se istovremeno kreće

at the same time.

i oko vlastite osi.

Due to his instability, Rezero is always

Zbog te nestabilnosti, Rezero je uvijek

in motion. Now here's the trick.

u pokretu. Evo u čemu je trik.

It's indeed exactly this instability that allows

Upravo ta nestabilnost omogućuje

a robot to move very [dynamically].

robotu da se kreće vrlo dinamično.

Let's play a little.

Poigrajmo se malo.

You may have wondered what happens

Možda se pitate što bi se dogodilo

if I give the robot a little push.

kad bih ga malo gurnuo.

In this mode, he's trying to maintain

U ovom načinu on pokušava zadržati

his position.

svoju poziciju.

For the next demo, I'd like you to introduce

Za sljedeću demonstraciju želio bih vas upoznati

to my colleagues Michael, on the computer,

sa svojim kolegama Michaelom, na računalu,

and Thomas who's helping me onstage.

i Thomasom koji će mi pomagati na pozornici.

In the next mode, Rezero is passive,

U sljedećem stanju Rezero je pasivan,

and we can move him around.

i možemo ga pokretati.

With almost no force I can control

Gotovo bez sile mogu kontrolirati

his position and his velocity.

njegovu poziciju i brzinu.

I can also make him spin.

Mogu ga i zavrtjeti.

In the next mode, we can get Rezero

U sljedećem stanju Rezero može

to follow a person.

pratiti osobu.

He's now keeping a constant distance to Thomas.

Sada održava stalnu udaljenost od Thomasa.

This works with a laser sensor

Ovo funkcionira pomoću laserskog senzora

that's mounted on top of Rezero.

koji je montiran na vrh Rezera.

With the same method, we can also

Koristeći istu metodu možemo

get him to circle a person.

učiniti da kruži oko neke osobe.

We call this the orbiting mode.

Nazivamo to orbitirajući način.

All right, thank you, Thomas.

U redu, hvala, Thomas.

(Applause)

(Pljesak)

Now, what's the use of this technology?

Sada, kako možemo koristiti ovu tehnologiju?

For now, it's an experiment, but let me

Zasad je ovo eksperiment, ali dozvolite da vam

show you some possible future applications.

pokažem neke od mogućih budućih primjena.

Rezero could be used in exhibitions or parks.

Rezero bi se mogao koristiti na izložbama ili u parkovima.

With a screen it could inform people or show

Uz ekran mogao bi informirati ljude ili

them around in a fun and entertaining way.

im pokazati uokolo na zabavan način.

In a hospital, this device could be used to

U bolnici ovaj bi se uređaj mogao koristiti za

carry around medical equipment.

raznošenje medicinske opreme.

Due to the Ballbot system, it has a very small

Zbog ballbot sistema, ima vrlo mali

footprint and it's also easy to move around.

trag i lako se kreće.

And of course, who wouldn't like

I naravno, tko se ne bi poželio

to take a ride on one of these.

provozati na nečem poput ovoga.

And these are more practical applications.

No to je više praktična primjena.

But there's also a certain beauty

A postoji i određena ljepota

within this technology.

u ovoj tehnologiji.

(Music)

(Glazba)

(Applause)

(Pljesak)

Thank you.

Hvala.

(Applause)

(Pljesak)

Thank you.

Hvala.