Featured Research

from universities, journals, and other organizations

Vehicles That Drive Themselves

Date:
May 27, 2009
Source:
Optical Society of America
Summary:
The thought of a car or truck that can drive itself is at once both exciting and frightening. Autonomous vehicle navigation, as the technology is known, may make life more convenient if it allows people to kick back and enjoy a good book or movie while their cars guide themselves through rush-hour traffic. But what happens if it starts to rain or if traffic suddenly picks up?

The thought of a car or truck that can drive itself is at once both exciting and frightening. Autonomous vehicle navigation, as the technology is known, may make life more convenient if it allows people to kick back and enjoy a good book or movie while their cars guide themselves through rush-hour traffic. But what happens if it starts to rain or if traffic suddenly picks up?

If the technology is to work at all, it will have to be completely safe on all roads, under all speeds, and in all weather. Therein lies the challenge: if cars and trucks are to drive autonomously, they will need futuristic sensors and advanced computing capabilities to respond to ever-changing road conditions.

Perhaps the most extreme example of ever-changing conditions is a war zone, where roads may be reduced to rubble and vehicles are natural targets of attack. Rolling out fleets of self-navigating vehicles for the military is an enticing idea because it could keep thousands of troops out of harm's way. But will it be possible for these vehicles to operate in war zones? This question was the inspiration for a recent Defense Advanced Research Projects Agency (DARPA) contest aimed at spurring the development of such technologies.

Held at a former air force base in Victorville, Calif. in late 2007, the DARPA Urban Challenge offered a $3.5 million purse to competitors who could design the fastest and safest vehicles that could traverse a 60-mile urban course in moving traffic in less than six hours. The contestant vehicles were unmanned and had to complete a simulated military supply mission, maneuvering through a mock city environment, avoiding obstacles, merging into moving traffic, navigating traffic circles, and negotiating intersections -- all while conforming to California driving rules. Of the 89 international teams that entered the challenge, only six finished in the allotted time.

Wende Zhang of General Motors was part of the team that designed the winning vehicle, which finished with the fastest time -- an average speed of approximately 13 miles per hour. The GM team drew upon existing technology already offered in some of their vehicles that can assist in parking or detect lane markers and trigger alarms if the drivers are coming too close to the shoulder of the road. For the DARPA challenge, they developed a more sophisticated package of sensors that included GPS coupled with a camera and a laser-ranging LIDAR system to guide and correct the vehicle's route through the city. In Baltimore, Zhang will present GM's patented new methods for detecting lanes and correcting a vehicle's route, which helped them win the challenge.

Though they won, don't look for robotic chauffeurs immediately. The technology must prove reliable in many different road, weather and lighting conditions. Still, says Zhang, a commercially-viable autonomous driving product may be available in the next decade.

This research is scheduled to be presented during the 2009 Conference on Lasers and Electro-Optics/International Quantum Electronics Conference (CLEO/IQEC) May 31 to June 5 at the Baltimore Convention Center in Baltimore.


Story Source:

The above story is based on materials provided by Optical Society of America. Note: Materials may be edited for content and length.


Cite This Page:

Optical Society of America. "Vehicles That Drive Themselves." ScienceDaily. ScienceDaily, 27 May 2009. <www.sciencedaily.com/releases/2009/05/090526183731.htm>.
Optical Society of America. (2009, May 27). Vehicles That Drive Themselves. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2009/05/090526183731.htm
Optical Society of America. "Vehicles That Drive Themselves." ScienceDaily. www.sciencedaily.com/releases/2009/05/090526183731.htm (accessed October 2, 2014).

Share This



More Matter & Energy News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Japan Looks To Faster Future As Bullet Train Turns 50

Japan Looks To Faster Future As Bullet Train Turns 50

Newsy (Oct. 1, 2014) Japan's bullet train turns 50 Wednesday. Here's a look at how it's changed over half a century — and the changes it's inspired globally. Video provided by Newsy
Powered by NewsLook.com
US Police Put Body Cameras to the Test

US Police Put Body Cameras to the Test

AFP (Oct. 1, 2014) Police body cameras are gradually being rolled out across the US, with interest surging after the fatal police shooting in August of an unarmed black teenager. Duration: 02:18 Video provided by AFP
Powered by NewsLook.com
Raw: Japan Celebrates 'bullet Train' Anniversary

Raw: Japan Celebrates 'bullet Train' Anniversary

AP (Oct. 1, 2014) A ceremony marking 50 years since Japan launched its Shinkansen bullet train was held on Wednesday in Tokyo. The latest model can travel from Tokyo to Osaka, a distance of 319 miles, in two hours and 25 minutes. (Oct. 1) Video provided by AP
Powered by NewsLook.com
Robotic Hair Restoration

Robotic Hair Restoration

Ivanhoe (Oct. 1, 2014) A new robotic procedure is changing the way we transplant hair. The ARTAS robot leaves no linear scarring and provides more natural results. Video provided by Ivanhoe
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins