Let me introduce to you Rezero. This little fellow was developed by a group of 10 undergraduate students at the Autonomous Systems Laboratory at ETH-Zurich.
Dozvolite da vas upoznam sa Razerom. Ovaj mališan je razvijen od strane grupe od 10 mlađih studenata u labaratoriji Autonomous Systemsa na švajcarskom saveznom institutu za tehnologiju u Cirihu.
Our robot belongs to a family of robots called Ballbots. Instead of wheels, a Ballbot is balancing and moving on one single ball. The main characteristics of such a system is that there's one sole contact point to the ground. This means that the robot is inherently unstable. It's like when I am trying to stand on one foot.
Naš robot pripada familiji robota zvanih Ballbots. Umesto točkova, ovi roboti balansiraju i pokreću se na jednoj kugli. Osnovna karakteristika ovakvog sistema je ta da postoji samo jedna dodirna tačka sa podlogom. To znači da je robot sam po sebi nestabilan. To je kao kad ja pokušavam da stojim na jednoj nozi.
You might ask yourself, what's the usefulness of a robot that's unstable? Now we'll explain that in a second. Let me first explain how Rezero actually keeps his balance. Rezero keeps his balance by constantly measuring his pitch angle with a sensor. He then counteracts and avoids toppling over by turning the motors appropriately. This happens 160 times per second, and if anything fails in this process, Rezero would immediately fall to the ground.
Možda ćete se zapitati, koja je korist robota koji je nestabilan? Sad ćemo objasniti i to, samo sekundu. Provo želim da objasnim kako Razero održava svoju ravnotežu. Razero balansira time što konstantno meri svoj ugao naginjanja senzorom. Nakon čega odreaguje i izbegava prevrtanje okretanjem motora na odgovarajući način. To se događa 160 puta u sekundi, a ako nešto otkaže u ovom procesu, Razero će odmah pasti na zemlju.
Now to move and to balance, Rezero needs to turn the ball. The ball is driven by three special wheels that allow Rezero to move into any direction and also move around his own axis at the same time. Due to his instability, Rezero is always in motion. Now here's the trick. It's indeed exactly this instability that allows a robot to move very [dynamically]. Let's play a little. You may have wondered what happens if I give the robot a little push. In this mode, he's trying to maintain his position.
Da bi se kretao i uspostavio ravnotežu, Razero mora da pokreće kuglu. Kuglu pokreću tri specijalna točkića koji omogućuju Razeru da se pokreće u svim pravcima, a takođe može da se okreće oko svoje ose u isto vreme. Zbog svoje nestabilnosti, Razero je uvek u pokretu. U ovome je trik. Njemu je potrebna baš ta nestabilnost koja omogućava da se kreće vrlo dinamično. Igrajmo se malo. Sigurno ste se zapitali šta se dešava ako ja malo gurnem robota. U ovom režimu, on pokušava da održi svoju poziciju.
For the next demo, I'd like you to introduce to my colleagues Michael, on the computer, and Thomas who's helping me onstage. In the next mode, Rezero is passive, and we can move him around. With almost no force I can control his position and his velocity. I can also make him spin. In the next mode, we can get Rezero to follow a person. He's now keeping a constant distance to Thomas. This works with a laser sensor that's mounted on top of Rezero. With the same method, we can also get him to circle a person. We call this the orbiting mode. All right, thank you, Thomas. (Applause)
Za sledeću demonstraciju, želeo bih da vam predstavim moje kolege Majkla, on je za računarom, i Tomasa, koji će mi pomoći na sceni. U sledećem režimu, Razero je pasivan i mi možemo da ga pomeramo. Uz minimalne napore mogu da kontrolišem njegovu poziciju i brzinu. Mogu da ga zavrtim. U sledećem režimu, možemo zadati Razeru da prati osobu. On sada održava konstantnu razdaljinu od Tomasa. Ovo mu omogućava laserski senzor koji je montiran na vrhu Razera. Istim metodom, možemo takođe zadati da kruži oko osobe. Ovo zovemo režim kruženja. U redu, hvala Tomas. (aplauz)
Now, what's the use of this technology? For now, it's an experiment, but let me show you some possible future applications. Rezero could be used in exhibitions or parks. With a screen it could inform people or show them around in a fun and entertaining way. In a hospital, this device could be used to carry around medical equipment. Due to the Ballbot system, it has a very small footprint and it's also easy to move around. And of course, who wouldn't like to take a ride on one of these. And these are more practical applications. But there's also a certain beauty within this technology.
Sada, koja je upotreba ove tehnologije? Za sada je eksperiment ali dozvolite mi da vam pokažem neke od mogućih primena u budućnosti. Razero moze biti korišćen na izložbama ili parkovima. Sa ekranom može da informiše ljude ili ih vodi okolo na zanimljiv i zabavan način. U bolnicama, ovaj uređaj može se koristiti za nošenje medicinske opreme. Zahvaljujući Ballbot sistemu, vrlo malo utiče na okolinu i vrlo lako može da se kreće. I naravno, ko ne bi voleo da se provoza jednim od ovih. A ovo su neke od praktičnijih upotreba. Ali takođe postoji određena lepota u ovoj tehnologiji
(Music)
(muzika)
(Applause)
(aplauz)
Thank you.
Hvala.
(Applause)
(aplauz)
Thank you.
Hvala.