Featured Research

from universities, journals, and other organizations

Robots Designed To Save Lives Of Construction Workers

Date:
December 11, 2008
Source:
Virginia Tech
Summary:
A trio of pole-climbing serpentine robots are designed to take the place of construction workers tasked with dangerous jobs such as inspecting high-rises or underwater bridge piers. The autonomous robots are designed to climb scaffolding and buildings by wrapping around a poll or beam and then rolling upward via an oscillating joint motion.

This HyDRAS serpentine robot prototype climbs a pole by converting the oscillating motion of the joints to a whole body rolling motion to climb up pole-like structures.
Credit: Image courtesy of Virginia Tech

The Robotics and Mechanisms Laboratory (RoMeLa) of the College of Engineering at Virginia Tech won the grand prize at the 2008 International Capstone Design Fair with a trio of pole-climbing serpentine robots designed to take the place of construction workers tasked with dangerous jobs such as inspecting high-rises or underwater bridge piers.*

Related Articles


The autonomous robots are designed to climb scaffolding and buildings by wrapping around a poll or beam and then rolling upward via an oscillating joint motion. Using built-in sensors and cameras, the robots would then inspect the structures or handle other dangerous tasks now done by humans, said Dennis Hong, director of Virginia Tech’s Robotics and Mechanisms Laboratory and the faculty adviser on the project.

The robots are each roughly three feet in length and use a movement unique even in nature. “These are really wicked cool robots,” he added.

The need for autonomous tools in the construction field is great. Hong cites a 2006 U.S. Bureau of Labor Statistics report that tracked the workplace deaths of 1,226 construction workers in 2006, an increase of 3 percent from 2005. The same report listed 809 deaths as a result of falls from raised structures such as scaffolding, Hong said.

“Unlike inchworm type gaits often being developed for serpentine robot locomotion, this novel climbing gait requires the serpentine robot to wrap around the structure in a helical shape, and twist its whole body to climb or descend by rolling up or down the structure,” Hong said.

The HyDRAS robots operate using electric motors, while the CIRCA robot uses a compressed air muscle. “The use of compressed air makes this approach feasible by enabling it to be light weight, providing compliant actuation force for generating the gripping force for traction, and allowing it to use a simple discrete control scheme to activate the muscles in a predetermined sequence,” Hong said. For now, the robots operate by a tethered wire attached to a laptop, but Hong and his students are reconfiguring the devices to function independently using an onboard microprocessor and power source.

“This family of novel robots will serve as a practical inspection tool for construction sites without putting workers in harm’s way,” he added.

The robots were developed by mechanical engineering students Gabriel Goldman of Richmond, Va., and Nick Thayer of Poquoson, Va., who are both currently pursuing mechanical engineering doctoral degrees at Virginia Tech. The remaining student developers, all of which are recent graduates, are Michael Bloom, Florian Böss, Cory Kaser, Vic Kassoff, David McDowell, Spencer Patton, and Jeff Philis.

Goldman and Thayer traveled to Seoul with the robots to display and present the team’s work at the international symposium. Universities from more than 15 countries submitted 44 entries, according to Hong, who remained in Blacksburg during the event. The prize of 1 million won, the currency of South Korea, prize equals roughly $690 U.S. Korea currency rates have been hard hit by recent worldwide economic woes and are now at half their normal power, Hong said.

“There was a lot of great talent in that room and everybody brought back some good experiences,” said Thayer.

“Being able to compete against so many other great projects from around the globe and be recognized like that is truly an amazing feeling,” said Goldman.

*Team RoMeLa scored the cash prize of 1 million won (won is the currency of South Korea) with its robots, the HyDRAS-Ascent (Hyper-redundant Discrete Robotic Articulated Serpentine for climbing), the HyDRAS-Ascent II, and CIRCA (Climbing Inspection Robot with Compressed Air), at the 2008 International Symposium on Educational Excellence 2008 competition. The event took place at Seoul National University of Technology in South Korea.


Story Source:

The above story is based on materials provided by Virginia Tech. Note: Materials may be edited for content and length.


Cite This Page:

Virginia Tech. "Robots Designed To Save Lives Of Construction Workers." ScienceDaily. ScienceDaily, 11 December 2008. <www.sciencedaily.com/releases/2008/12/081210144936.htm>.
Virginia Tech. (2008, December 11). Robots Designed To Save Lives Of Construction Workers. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2008/12/081210144936.htm
Virginia Tech. "Robots Designed To Save Lives Of Construction Workers." ScienceDaily. www.sciencedaily.com/releases/2008/12/081210144936.htm (accessed October 31, 2014).

Share This



More Computers & Math News

Friday, October 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Samsung's Incredible Shrinking Smartphone Profits

Samsung's Incredible Shrinking Smartphone Profits

Reuters - Business Video Online (Oct. 30, 2014) — The world's top mobile maker is under severe pressure, delivering a 60 percent drop in Q3 profit as its handset business struggles. Turning it around may not prove easy, says Reuters' Jon Gordon. Video provided by Reuters
Powered by NewsLook.com
Ban On Wearable Cameras In Movie Theaters Surprises No One

Ban On Wearable Cameras In Movie Theaters Surprises No One

Newsy (Oct. 30, 2014) — The Motion Picture Association of America and the National Association of Theatre Owners now prohibit wearable cameras such as Google Glass. Video provided by Newsy
Powered by NewsLook.com
Microsoft Launches Fitness Band After Accidental Reveal

Microsoft Launches Fitness Band After Accidental Reveal

Newsy (Oct. 30, 2014) — Microsoft accidentally revealed its upcoming fitness band on Wednesday, so the company went ahead and announced it. Video provided by Newsy
Powered by NewsLook.com
Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Mind-Controlled Prosthetic Arm Restores Amputee Dexterity

Reuters - Innovations Video Online (Oct. 29, 2014) — A Swedish amputee who became the first person to ever receive a brain controlled prosthetic arm is able to manipulate and handle delicate objects with an unprecedented level of dexterity. The device is connected directly to his bone, nerves and muscles, giving him the ability to control it with his thoughts. Matthew Stock reports. Video provided by Reuters
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