Rollin & # 39; Justin is a humanoid robot developed by DLR as a research platform. Introduced in 2008, it is 75.2 in (1.91 m) in size and weighs about 440 lb (200 kg). The arms, hull and mobile platform have 51 degrees of freedom and can operate on the internal battery for more than an hour, while traveling at a speed of up to 7.2 km / h (4.4 mph). In addition, it has torque sensors in all joints, two balance sensors, a pair of stereo cameras, four color cameras and is designed to work with people in cooperative tasks.
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