Wearable Exoskeleton Arm Motion Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power exoskeletons have complex structures that require high user operation capability, leading to clumsy operations and a limited application range.
Innovation Solution
A wearable device with a simplified structure comprising connection members, joint members, fixing structures, sensors, and controllers that use motion state parameters from the user's arm to control the exoskeleton's thigh and shank movements, allowing for natural adjustment of walking speed and stride.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power exoskeleton structure is made complex to improve functionality, then the enhancement capability is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The exoskeleton system uses sensors to automatically detect user motion states and controllers to autonomously adjust assistance forces, eliminating the need for manual operation inputs. The system serves itself by converting user's natural arm movements into control signals that automatically regulate the hydraulic/pneumatic actuators, thereby simplifying operation while maintaining adaptability.
Solution Approach 2:
The control system integrates multiple functions into a unified architecture where the same sensor-controller-actuator loop handles various motion scenarios (walking, running, carrying loads). The system universally applies the principle of using arm motion as the control interface across different operational modes, reducing the need for separate control mechanisms for each function.
2Adaptability or versatility
If the power exoskeleton structure is made complex to improve functionality, then the enhancement capability is improved, but the device complexity increases
Solution Approach 1:
The exoskeleton is divided into modular components: sensors mounted on the user's body, hydraulic/pneumatic actuators at joint locations, and a central control unit. This segmentation allows independent optimization of each component and simplifies the overall system architecture by distributing functions across separate modules rather than requiring a monolithic complex structure.
Solution Approach 2:
The control system acts as an intermediary between the sensors detecting user motion and the hydraulic/pneumatic actuators providing mechanical assistance. This intermediary layer processes sensor data and translates it into appropriate actuator commands, simplifying the coupling between detection and execution subsystems while enabling flexible control strategies.
Data Source
AI summary
The wearable device provided by embodiments of the present disclosure is used for enhancing physical fitness, and includes a first connection member, a second connection member, a first joint member, a second joint member, a first fixing structure, a second fixing structure, a third fixing structure, a first sensor and a first controller. According to embodiments of the present disclosure, motion control may be implemented by obtaining a motion state parameter of an arm of the user and controlling, according to the motion statement parameter, the first connection member and the second connection member to act, so that the user may adjust his walking speed and stride naturally and conveniently.