Gait Training Machine with Real-Time Center-of-Gravity Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current gait training technologies do not effectively provide real-time feedback on ankle joint movement and center-of-gravity shifts, essential for adjusting healthy gait posture during training.
Innovation Solution
A gait training machine comprising a base, driving module, sensor module, controller, and signal processing module, which includes pressure sensors and a position sensor to detect weight and movement, and a guiding unit to provide feedback on correct ankle joint and center-of-gravity positioning through a touch screen interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure sensors and position sensors are integrated into the gait training machine to detect weight and movement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The sensor module is divided into distinct functional components: pressure sensors mounted on left and right pedals for weight detection, and a position sensor in the base for movement detection. This segmentation allows each sensor type to be optimized independently while maintaining overall system precision without excessive complexity.
Solution Approach 2:
The controller integrates multiple functions: it processes signals from both pressure and position sensors, calculates center-of-gravity position, determines gait patterns, and provides guidance through the display unit. This multi-functionality reduces the need for separate dedicated devices for each task, balancing measurement precision with device complexity.
2Ease of operation
If real-time feedback on center-of-gravity position and ankle joint movement is provided through a display unit, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The display unit provides real-time visual feedback to users about their center-of-gravity position and gait posture based on sensor data. This feedback loop enables users to make immediate adjustments to their gait, improving ease of operation. The controller automatically processes sensor signals and generates appropriate guidance information, managing the complexity internally while keeping the user interface simple.
Solution Approach 2:
The controller acts as an intermediary between the sensors and the display unit. It receives raw signals from pressure and position sensors, processes this data to determine gait parameters and center-of-gravity position, and then presents this information in a user-friendly format on the display. This intermediary role simplifies the user interface while managing the underlying system complexity.
3Manufacturing precision
If the motor drives moving platforms to move pedals in opposite directions with precise control, then manufacturing precision is improved, but use of energy increases
Solution Approach 1:
The motor controls the moving platforms to move the pedals in opposite directions with dynamically adjusted speeds and positions based on the user's gait cycle. This dynamic control allows the system to provide precise pedal movement guidance while adapting energy consumption to the actual training needs, rather than operating at constant high power.
Solution Approach 2:
The driving circuit adjusts motor operating parameters (speed, torque, direction) based on signals from the position sensor and pressure sensors to match the user's gait requirements. By changing motor parameters dynamically rather than maintaining fixed high-performance settings, the system achieves precise pedal control while optimizing energy consumption during gait training.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables users to adjust their gait posture by providing real-time feedback on ankle joint and center-of-gravity alignment, improving gait training efficacy by calculating correct rates and guiding users through corrective movements.
Implementation Method 1
The pressure sensors are respectively mounted on the left pedal and the right pedal... The gait detecting unit receives weight signals detected by the pressure sensors
Implementation Method 2
The position sensor is disposed in the base... When the left pedal and the right pedal pass the position sensor with the moving platforms, the position sensor generates a passing signal
Implementation Method 3
The driving module comprises a driving circuit, a motor and two moving platforms... The motor drives the moving platforms to move the left pedal and the right pedal in the opposite direction
Data Source
AI summary
A gait training machine includes a base, a driving module including a driving circuit, a motor and two moving platforms, a sensor module including a left pedal, a right pedal, a plurality of pressure sensors and a position sensor, a controller electrically connected to the driving circuit, each pressure sensor and the position sensor and a signal processing module disposed in the controller and including a gait detecting unit and a gait determining unit with a center-of-gravity calculation logic and a gait determining logic stored therein. Using the above gait training machine to determine whether the bearing weight of the left pedal and the right pedal is correct, and whether the center-of-gravity position is correct, so that the user can know the ankle joint movement and the center-of-gravity during gait training to adjust the health gait posture.