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The ARMAR Family

ARMAR-4
ARMAR-4
ARMAR-IIIb (left), 2008 and ARMAR-IIIa
ARMAR-IIIa
ARMAR-IIIa in der Küche
ARMAR, 2000 and ARMAR-II, 2002
The Karlsruhe Humanoid Head
TUAT/Karlsruhe Hand
Die TUAT/Karlsruhe Hand
Exoskelett KIT-EXO-1
Exoskelett KIT-EXO-1

The humanoid ARMAR robots have been developed within the Collaborative Research Center 588: Humanoid Robots - Learning and Cooperating Multimodal Robots (SFB 588).

 

ARMAR-4

The humanoid robot ARMAR-4 is a full body torque controlled humanoid robot with 63 active degrees of freedom, 63 actuators, 214 sensors, 76 microcontroller for low-level control, 3 PCs for perception, high-level control and balancing, a weight of 70 kg including batteries and total height of 170 cm.

 

ARMAR-III

In the design of our robot ARMAR-IIIa in 2006, we desired a humanoid that closely mimics the sensory and sensorimotor capabilities of the human. The robot should be able to deal with household environments and the wide variety of objects and activities encountered in it. ARMAR-IIIa is a fully integrated autonomous humanoid system. It has a total 43 DOFs and is equiped with position, velocity and force-torque sensors. The upper body has been designed to be modular and light-weight while retaining similar size and proportion as an average person. For the locomotion, we employed a mobile platform which allows for holonomic movability in the application area. Two years later, a slightly improved humanoid robot, ARMAR-IIIb, was engineered.

 

ARMAR-II

In 2002, the second version of the ARMAR series, namely ARMAR-II, was built. Mechanically, this robot consisted of an autonomous mobile wheel-driven platform, a body with 4 DOFs, a two arm system with a simple gripper and a stereo camera head. The anthropomorphic body of the robot was placed on a mobile platform and supported a rotation of about 330 degrees. It also was able to bend forward, backward and sideward.
Since the robot should support a simple and direct cooperation with humans, the physical structure (dimension, shape and kinematics) of each arm was developed as close as possible to the human arm in terms of segment lengths, axis of rotation and workspace. Furthermore, ARMAR-II had two redundant arms each having 7 DOFs and a length of 65 cm.

 

ARMAR-I

In the year 2000, the first humanoid robot in Karlsruhe was built and named ARMAR. This humanoid had twenty-five mechanical degrees-of-freedom (DOF). It consisted of an autonomous mobile wheel-driven platform, a body with 4 DOFs, two anthropomorphic redundant arms each having 7 DOFs, two simple gripper and a head with 3 DOFs.

 

The Karlsuhe Humanoid Head

The Karlsruhe humanoid head was consistently used in ARMAR-IIIa, ARMAR-IIIb, and ARMAR-4. Each possesses two cameras per eye with a wide-angle lens for peripheral vision and a narrow-angle lens for foveated vision. It has a total number of 7 DOFs (4 in the neck and 3 in the eyes), six microphones and a 6D inertial sensor. Throughout Europe, there are already ten copies of this head in use.

 

The TUAT/Karlsruhe Humanoid Hand

The first version of the TUAT/Karlsruhe Humanoid Hand has been developed in the year 2000 and possesses 20 DOF. It is driven by one actuator which can be placed into or around the hand. The second version, developed in 2013, is equipped with 24 DoF and additional actuators allowing to perform more complex grasping and manipulation tasks

 

The Exoskeleton KIT-EXO-1

The exoskeleton KIT-EXO-1 was introduced in 2013 with the aim to augment human capabilities or to use it in rehabilitation applications. It has two degrees of freedom at the knee and ankle, as well as a passive degree of freedom allowing the user to move the lower ankle joint. The active degrees of freedom are driven by an elastic or a stiff actuator, which can apply a maximum torque of 120 Nm. Using a series elasticity increases actuator efficiency and user safety when wearing the exoskeleton device. Straps from a commercial orthosis and a sports shoe are installed to interface user and construction. Integrated force sensors in the belts measure the forces between user and exoskeleton during operation and current research aims to generate an intuitive device control based on force data.

 

 


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