Boston Dynamics, developer of advanced dynamic robots such
as BigDog and PETMAN, has been awarded a contract by Sandia to develop the next
generation of the Precision Urban Hopper, meaning Sandia‘s hopping robots may
soon be in combat.
When fully operational, the four-wheeled hopper robots will
navigate autonomously by wheel and jump – with one mighty leg – onto or over
obstacles of more than 25 feet, said Jon Salton, Sandia program manager.
The four-wheeled hopper robots will navigate autonomously by wheel and jump — with one mighty leg — onto or over obstacles of more than 25 feet. (Photo by Randy Montoya)
“The Precision Urban Hopper is part of a broad effort to
bolster the capabilities of troops and special forces engaged in urban combat,
giving them new ways to operate unfettered in the urban canyon,” Salton said.
The development program, funded by Defense Advanced Research
Projects Agency, Department of Defense’s advanced technology organization, has
a 12-month design phase followed by a six-month build phase, with testing and
delivery planned for late 2010.
As part of the ongoing DARPA project, Sandia developed the
shoebox-sized, GPS-guided, unmanned ground robots.
The demonstrated hopping capability of the robots allows the
small unmanned ground vehicles to overcome as many as 30 obstacles that are
40-60 times their own size. Hopping mobility has been shown to be five times
more efficient than hovering when traversing obstacles at heights under 10
meters, which allows longer station-keeping time for the same amount of fuel.
The wheeled robotic platform adapts to the urban environment
in real time and provides precision payload deployment to any point of the
urban jungle while remaining lightweight and small. Researchers addressed
several technical challenges, including appropriate management of shock forces
during landing, controlling hop height from varying terrain including concrete,
asphalt, sand and vegetation and controlling landings to limit tumbling.
An overall goal of the robots is to decrease the number of
casualties in combat. To that end, the hopping robots will provide enhanced
situational awareness for shaping the outcome of the immediate local combat
situation, Salton said. Their compact, lightweight design makes them portable,
and their semiautonomous capability greatly reduces the workload burden of the
operator.
In addition to providing military assistance, the hopping
capabilities of the robots could be used in law enforcement, homeland security,
search and rescue applications in challenging terrain and in planetary
exploration, Salton said.
”We are delighted to win this project and get a chance to
work with Sandia on such a novel and potentially useful robot,” said Marc
Raibert, president and founder of Boston Dynamics. “The program gives us a
chance to apply our special brand of advanced controls and stabilization to a
system that can help our warfighters in the near future.”
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