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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.
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 infrastructure | University of Twente Department of Robotics |
| Location | Hallenweg 15, 7522 NH Enschede, Holland |
| Unit of access | Working 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
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 730994
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