BigDog is a dynamically stable quadruped robot created in 2005 by Boston Dynamics with Foster-Miller, the NASA Jet Propulsion Laboratory, and the Harvard University Concord Field Station. BigDog is 3 feet (0.91 m) long, stands 2.5 feet (0.76 m) tall, and weighs 240 pounds (110 kg), about the size of a small mule. It is capable of traversing difficult terrain, running at 4 miles per hour (6.4 km/h), carrying 340 pounds (150 kg), and climbing a 35 degree incline. Locomotion is controlled by an on board computer that receives input from the robot's various sensors. Navigation and balance are also managed by the control system.
Big Dog is powered by a two-stroke, one-cylinder, 15-HP go-kart engine operating at over 9,000 RPM. The engine drives a hydraulic pump, which in turn drives the hydraulic leg actuators. Each leg has four actuators (two for the hip joint, and one each for the knee and ankle joints), for a total of 16. Each actuator unit consists of a hydraulic cylinder, servovalve, position sensor, and force sensor.
Onboard computing power is a ruggedized PC/104 board stack with a Pentium 4 class computer running QNX.
There's nothing on the ground like Big Dog, the LS3 is an exciting and scary "big dog" DARPA robot with quite a lot of truth mixed with a real robot dog robot with terrible ... now it's even more effective.
In the last gathering, DARPA demonstrated a large dog with some new tricks. In search of lost in the human skull, so as not to hurt the tablet / packmule foot robot leader. it'll-be to follow the instructions. Big Dog: "We Shitagai off" fleshy step path through the rocks and ravines. The surprise may be able to opt out after falling in the mud, many people still have something. The quiet time is incredible team zhutko.Sleduyuschaya. "How well your dog crushed to death!" It's like sometimes.
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