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LOPES

The LOPES can be used to assist patients (e.g. stroke, SCI) during walking or assess gait impairments. It has eight powered degrees of freedom (hip flexion/extension, hip abduction/aduction, knee flexion/extension, pelvis forward/backward and pelvis mediolateral). Other degrees of freedom are left free. The robot is attached with a minimal amount of clamps which results in a short donning and doffing time. It is admittance controlled and allows for control over the complete spectrum from low to high impedance. Kinematics and interaction forces are measured by the device and it can be easily combined with EMG measurements. It allows to test new controllers (e.g. for exoskeletons) or assessment algorithms in a safe environment.

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Key features:
  • Short donning and doffing time
  • 8 powered degrees of freedom
  • Integrated sensors to measure kinematics and interaction forces
  • Admittance controlled: control from low to high impedance possible
  • Simulink development library, allowing easy integration of new control algorithms
Possible applications:
  • Controller development for exoskeletons
  • Human-Robot Interaction
  • Gait assessment
  • Gait training
  • Human-in-the-loop testing

Technical specifications

Maximal Torque (varying per joint):60-66 Nm
Control:Admittance control
Other free degrees of freedom:9
Powered degrees of freedom:8
Donning time:5-15 minutes
Maximal rendered stiffness:1500 Nm/rad

Access information

Corresponding infrastructureUniversity of Twente
Department of Robotics
LocationHallenweg 15, 7522 NH Enschede, Holland
Unit of accessWorking day

Additional information

The design and control of LOPES is described in detail in the PhD thesis of Jos Meuleman http://josmeuleman.nl/thesis.html

Information on LOPES related project can be found at https://www.utwente.nl/en/et/be/research/projects/lopes

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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 730994

Dissemination
The RAIN Hub: Human-Robot Interaction for Nuclear Workshop – SEPTEMBER 28 – 29, 2020
26 August 2020
The RAIN Hub: Human-Robot Interaction for Nuclear Workshop – SEPTEMBER 28 – 29, 2020
TERRINet SUCCESS STORY: “Flow-field” and “Neuromuscular” Control Algorithms for AAN Gait Rehabilitation Tested On Lopes Exoskeleton for Potential Commercial Use
25 June 2020
TERRINet SUCCESS STORY: “Flow-field” and “Neuromuscular” Control Algorithms for AAN Gait Rehabilitation Tested On Lopes Exoskeleton for Potential Commercial Use
TERRINet ONLINE SUMMER SCHOOL: Deep learning perception on Robotics, Human-Robot Interaction, Robot Navigation, and Assistive Robotics
8 June 2020
TERRINet ONLINE SUMMER SCHOOL: Deep learning perception on Robotics, Human-Robot Interaction, Robot Navigation, and Assistive Robotics
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Training
Dissemination
The RAIN Hub: Human-Robot Interaction for Nuclear Workshop – SEPTEMBER 28 – 29, 2020
26 August 2020
The RAIN Hub: Human-Robot Interaction for Nuclear Workshop – SEPTEMBER 28 – 29, 2020
TERRINet SUCCESS STORY: “Flow-field” and “Neuromuscular” Control Algorithms for AAN Gait Rehabilitation Tested On Lopes Exoskeleton for Potential Commercial Use
25 June 2020
TERRINet SUCCESS STORY: “Flow-field” and “Neuromuscular” Control Algorithms for AAN Gait Rehabilitation Tested On Lopes Exoskeleton for Potential Commercial Use
TERRINet ONLINE SUMMER SCHOOL: Deep learning perception on Robotics, Human-Robot Interaction, Robot Navigation, and Assistive Robotics
8 June 2020
TERRINet ONLINE SUMMER SCHOOL: Deep learning perception on Robotics, Human-Robot Interaction, Robot Navigation, and Assistive Robotics
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