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BigDog | LittleDog | RHex | RiSE
RiSE: The Amazing Climbing Robot
RiSE is a small six-legged robot that climbs vertical terrain such as walls, trees and fences. RiSE’s feet have claws, micro-claws or sticky material, depending on the climbing surface. RiSE changes posture to conform to the curvature of the climbing surface and a fixed tail helps RiSE balance on steep ascents. RiSE is about 0.25 m long, weighs 2 kg, and travels 0.3 m/s.
Each of RiSE’s six legs is powered by two electric motors. An onboard computer controls leg motion, manages communications, and services a variety of sensors. The sensors include an inertial measurement unit, joint position sensors for each leg, leg strain sensors and foot contact sensors.
Future versions of RiSE will use dry adhesion to climb sheer vertical surfaces such as glass and metal. Boston Dynamics is developing RiSE in conjunction with researchers at University of Pennsylvania, Carnegie Mellon, Berkeley, Stanford, and Lewis and Clark University. RiSE is funded by the DARPA Defense Sciences Office.
BigDog is the alpha male of the Boston Dynamics family of robots. It is a quadruped robot that walks, runs, and climbs on rough terrain and carries heavy loads. BigDog is powered by a gasoline engine that drives a hydraulic actuation system. BigDog’s legs are articulated like an animal’s, and have compliant elements that absorb shock and recycle energy from one step to the next. BigDog is the size of a large dog or small mule, measuring 1 meter long, 0.7 meters tall and 75 kg weight.
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BigDog’s little brother. This little robot would probably fall over if you kicked it like they do the BigDog, but it has it’s own kind of creepy.
BigDog has an on-board computer that controls locomotion, servos the legs and handles a wide variety of sensors. BigDog’s control system manages the dynamics of its behavior to keep it balanced, steer, navigate, and regulate energetics as conditions vary. Sensors for locomotion include joint position, joint force, ground contact, ground load, a laser gyroscope, and a stereo vision system. Other sensors focus on the internal state of BigDog, monitoring the hydraulic pressure, oil temperature, engine temperature, rpm, battery charge and others.
RiSE, the wall climbing robot from Boston Dynamics. Boston Dynamics also created RHex and Big Dog
Okay, if this little bugger doesn’t creep you out, you must work at the pentagon. I swear the sped up part at the end was done just to freak us out!
BigDog is being developed by Boston Dynamics with help from Foster Miller, the Jet Propulsion Laboratory, and the Harvard University Concord Field Station.Development is funded by the DARPA Defense Sciences Office.
The Rugged Robot that Devours Rough Terrain
RHex is a man-portable robot with extraordinary rough terrain mobility. RHex climbs over rock fields, mud, sand, vegetation, railroad tracks, telephone poles and up steep slopes and stairways. RHex has a sealed body, making it fully operational in wet weather, in muddy and swampy conditions, and it can swim on the surface or dive underwater. RHex’s remarkable terrain capabilities have been validated in independent testing at US Government Labs.
RHex is controlled remotely from an operator control unit at distances up to 600 meters. A video uplink provides front and rear views from RHex’s onboard cameras. RHex also uplinks navigational data from onboard compass and GPS and from payload sensors. A downlink allows the operator to control mobility and to operate mission payloads.