Wheelchair Dual-Control Layout for Assisted Walking Interaction
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Solution Overview
Problem
The human-machine interaction intelligence level of existing walking aid devices is low, making the technology impractical and costly.
Innovation Solution
A walking aid device comprising a wheelchair with a drive control module, a front control module, and a rear control module, which allow for better human-machine interaction through distinct control signals for speed, propulsion assistance/resistance, and support resistance, with priority given to the front control module for seated operation and the rear control module for pushing operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple control modules are added to improve human-machine interaction intelligence, then the control functionality is enhanced, but the device complexity increases
Solution Approach 1:
The control system is segmented into distinct front control module and rear control module, each handling specific control scenarios. The front control module processes signals when the user is seated, while the rear control module handles pushing operations, dividing the complex control functionality into manageable segments that reduce overall system complexity.
Solution Approach 2:
Both front and rear control modules utilize the same drive control module as their execution platform, allowing a single component to serve multiple functions. This multi-functionality approach reduces the need for separate dedicated systems for each control mode, thereby managing complexity while maintaining versatility.
2Reliability
If control priority mechanisms are implemented to ensure safe operation, then the reliability is improved, but the control system complexity increases
Solution Approach 1:
The system establishes control priority rules in advance through predefined protocols. When both front and rear control modules are active, the system is pre-configured to prioritize front control module signals, eliminating the need for real-time complex decision-making and simplifying the control signal management while ensuring safety.
3Measurement precision
If distinct control signals are used for different functions, then the control precision is improved, but the signal management complexity increases
Solution Approach 1:
Different control signals are tailored to specific functional requirements and control scenarios. Each signal type is optimized for its particular purpose (speed control, propulsion assistance, support resistance), ensuring high control precision for each function while maintaining clear distinction between signals to manage processing complexity.
Data Source
AI summary
Provided is a walking aid device, including a wheelchair, a drive control module, a front control module, and a rear control module. The drive control module is disposed on the wheelchair for driving same to move. The front control module is connected to the drive control module for outputting a first control signal. The drive control module responds to the first control signal and thus controls the wheelchair to move at a corresponding speed. The rear control module is connected to the drive control module for outputting second and third control signals. The drive control module responds to the second and third control signals to respectively control the wheelchair to provide corresponding propulsion assistance/resistance or corresponding support resistance. The walking aid device includes the front control module and the rear control module, which are configured to achieve better human-machine interaction, making a user better control the wheelchair.