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Old 10-08-2005
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DARPA contestants make robotic history

DARPA contestants make robotic history

http://news.com.com/Driverless+robot...93.html?tag=nl

Quote:
By Stefanie Olsen
Staff Writer, CNET News.com

Published: October 8, 2005, 4:02 PM PDT

PRIMM VALLEY, NEV.--Stanford University's Racing Team has accomplished a historic feat of robotics, finishing first in the DARPA Grand Challenge, a 131.6-mile driverless car race that no artificially intelligent machine has ever conquered before.

"We had a great day," said Sebastian Thrun, director of Stanford's artificial intelligence lab and head of the racing team. Stanford's "Stanley," a modified Volkswagen Toureg with sensors and radar mountings, crossed the finish line within eight hours and 14 minutes, under the 10 hour requirement, according to times posted on the DARPA race Web site.

Although an official winner will not be announced until all robots either finish or burn out, the DARPA Grand Challenge "has been conquered," according to a spokesman for the department.

"These are world records," he added.

DARPA, or the Defense Advanced Research Projects Agency, is the research and development unit of the U.S. Department of Defense.

The first annual race in 2004 had no winner for its $1 million purse: Carnegie Mellon University's Sandstorm went only about 7 miles in the 144 mile race. For this year's race, which carries a $2 million prize, the "checkbook is out," DARPA's director Tony Tether said once Stanley crossed the finish line.

Stanford's Thrun, a German born robotics professor, cheered wildly after his team members soaked him in mystery liquid from giant cans of Red Bull. It was a lot of liquid: Stanford had more than 100 team members in blue shirts at the race, including sponsors from Intel, Mohr Davidow and Volkswagen, whose tagline for the challenge was "Drivers not required."

Roughly ten minutes after Stanley crossed the finish line, Carnegie Mellon University's H1ghlander came through second. A bright red Hummer with a giant-looking eyeball on top, which encases laser sensors, H1ghlander completed the course in eight hours and 19 minutes.

CMU's Sandstorm followed minutes later, finishing in roughly eight hours 12 minutes, according to the site. CMU had predicted the odds of finishing the course for both H1ghlander and Sandstorm were about 29 percent and 40 percent, respectively.

The driving times for all the vehicles are not final because they had been paused several times during the race for various reasons. Stanley, for example, was paused at least once for running up too close behind H1ghlander, which it eventually passed.

According to the Stanford team members, they believe they ran the course in about 7 hours.

Onlookers were wide-eyed watching the vehicles work their way through the extremely tricky course even though much of the race they could only see by wide-screen TVs in the spectator tent or by a real-time mapping tent.

For example, people in the spectator tent watched on with awe when Stanley drove over and down Beer Bottle Pass, which has 1,000-foot drops and hairpin turns. The packed crowd cheered when the car made it around the first switchback and then began chanting "Stanley, Stanley" as it went drove down. A father, whose son was from the Princeton University team, even showed his allegiance. "I graduated from Stanford," he said.

Princeton's car, "Prospect 11," pooped out after only 9 miles because its control system got confused and out of sync with the vehicle's mapping system.

Terra Max, one of the last vehicles to start and one of the most widely watched, may have trouble crossing Beer Bottle pass given its size. Terra Max is a giant 16-ton vehicle from Osh Kosh with a Caterpillar engine. It is one of only three teams still in the race.

The Gray Team from Louisiana and Insight Racing from North Carolina are still in the race. A DARPA spokesman said that if it appears the cars will still be driving at sundown, the group will stop the robots and let them finish the course Sunday. However, if it appears that the cars can't finish the course within 10 hours, they will call the race.

A final ceremony is scheduled for 6 p.m. PST Saturday.
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Old 10-09-2005
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The Red Team

To add to this. The first DARPA Grand Challenge was held a little more than 18 months ago. At that time no one completed the race. CMU's Sandstorm went about 7 miles and then crashed out of the challenge. None of the others even came up to 7 miles.

I was working under one of the CMU Prof's who also happened to be one of the external technical advisor for Sandstorm. The reason he gave for the crash was the technical people behind Sandstorm did not forsee the following situation: Encounter a curved uphill slope.

So apparently Sandstorm did not reduce its speed when it encountered the curved uphill slope. Hence it jumped the tracks, which lead it to crash and eventually one of the wheels caught fire.
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Old 10-09-2005
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This does not compute

If I am reading Neo's post right...

Stanley crossed the finish first Time: "within" 8:14
10 minutes later..."H1ghlander came through second" Time: 8:19
"minutes later"...Sandstorm crossed the finish line Time: 8:12

Where did these guys buy their clocks?? I wouldn't accept this kind of accuracy from a sundial.
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Old 10-10-2005
dangral dangral is offline Forum Advisor  
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Quote:
Originally Posted by Perderabo
If I am reading Neo's post right...

Stanley crossed the finish first Time: "within" 8:14
10 minutes later..."H1ghlander came through second" Time: 8:19
"minutes later"...Sandstorm crossed the finish line Time: 8:12

Where did these guys buy their clocks?? I wouldn't accept this kind of accuracy from a sundial.
There was an obvious problem with the ntp server
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