Rock Climbing Robot Can Carry a Load, Sets Sights on Mountain Rescues
May 8, 2013 6:47 PM
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Robot could be used to scout or send stranded climbers supplies
While it weighs just a little over a kilogram (~2.2 lb), the newly minted wall-climbing robot exhibits Spiderman-like strength, hauling a load of 7 kilograms (15.4 lb) up steep surfaces.
Created by researchers at the
Eidgenössische Technische Hochschule Zürich
(ETH Zürich) -- known abroad as the Swiss Federal Institute of Technology -- the climber bucks the trend of past designs that used gecko-like high-surface-area attractions (via
tiny synthetic hair-like setae
) to stick to the wall. Instead, the robot uses a unique tacky adhesive.
The adhesive is heated by resistors to melt, with a melting temperature of 70 degrees Celsius (158 degrees Fahrenheit). Beyond that point it becomes a liquid, but remains tacky. The tacky adhesive penetrates cracks and crevices, fixing the robot to the surface. But when allowed to cool it recedes, freeing the robot foot to take another step.
The resulting climber has tremendous potential for use in mountain
or mining rescue
operations, either carrying imaging and audio equipment to hunt for lost hikers, or transporting supplies to hikers in difficult to reach areas. Larger models with improved adhesives could eventually be used to haul down hikers off the cliff face, but even in its current form the bot has a lot of promise.
The robot could also see use hauling light materials in high rise construction, having been tested on wood, plastic, stone and aluminum.
Liyu Wang, one of the robot's designers,
, "Our technology uses thermoplastic adhesives, which are much stronger than those used in gecko-type climbing systems. We are thinking about using this to climb cliffs or other complex natural environments, which no previous climbing technologies can handle."
on the bot was published last month in the peer-reviewed journal
IEEE Transactions on Robotics
IEEE Transactions on Robotics
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RE: what about power?
5/9/2013 7:09:43 AM
They say it uses thermoelectric effect to heat and cool which means part of the energy is retrieved. Probably not that much but will certainly increase operation endurance.
Anyway, more importantly is how long it takes to reach people. Whether it's people trapped on a mountain or inside a flooded cave they need help within 24 hours or it's unlikely to find them alive. Especially if they are injured or less prepared for the situation. Also the supply delivered has to last two times the amount of time the robot needs to get there for a runabout.
Well, it's good for first response before a rescue team has been assembled or when there's no helicopter around for days.
It may also be better to serve as accompanying "mule" that carries important loads or lessens them. If anything other than an avalanche happens the robot could provide immediate support. Perhaps using wifi as a beacon (for following) on the people so there would be no need for them to be conscious and "call" it. This saves time to reach them. It could also serve as RF relay station for calling or as beacon for search/rescue teams.
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