Wheelchair Docking Coupler With Secure Height Adjustment
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Solution Overview
Problem
There is a need for a better docking system to secure wheelchairs during transit and a system and method for facilitating communication between the docking system, a computing device, and/or the wheelchair, as mass-produced passenger vehicles do not accommodate physically limited passengers effectively.
Innovation Solution
A wheelchair system with a unique identifier, a wheelchair controller, a vehicle docking system, a dock controller, and a data processing system that enables secure communication and adjustable height adjustment of the coupler mechanism to securely dock the wheelchair, using wireless communication and encryption keys for secure connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a docking system is added to secure wheelchairs in passenger vehicles, then wheelchair safety and security during transit is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The docking system is divided into separate functional modules: a docking mechanism with coupler and actuator, a controller for managing docking operations, and a communication system for data exchange. This segmentation allows each component to be optimized independently and simplifies installation in existing vehicles.
Solution Approach 2:
The docking system is designed to accommodate multiple wheelchair types and configurations through adjustable coupler mechanisms and height adjustment capabilities. The system can serve both security functions (preventing movement) and positioning functions (optimizing wheelchair placement), reducing the need for multiple specialized systems.
2Adaptability or versatility
If the coupler mechanism height is made adjustable to accommodate different wheelchair types, then compatibility and adaptability are improved, but device complexity increases
Solution Approach 1:
The coupler mechanism incorporates an actuator that enables dynamic height adjustment during the docking process. The controller receives communication data about the wheelchair type and automatically adjusts the coupler height to the appropriate position, providing adaptability without requiring multiple fixed-position mechanisms.
Solution Approach 2:
The system uses automated communication between the docking controller and wheelchair controller to determine the required coupler height. The dock controller autonomously adjusts the coupler mechanism based on received data, eliminating the need for manual adjustment by the user and reducing operational complexity.
3Reliability
If secure communication channels with encryption are implemented between docking system and wheelchair, then communication security and data protection are improved, but device complexity and processing requirements increase
Solution Approach 1:
The docking controller serves as an intermediary that manages the secure communication protocol between the vehicle's docking system and the wheelchair controller. It handles encryption key exchange and secure data transmission, isolating the complexity of security protocols from both the vehicle system and wheelchair system.
4Ease of operation
If automated docking with communication protocols is implemented, then docking precision and ease of operation are improved, but device complexity and initial cost increase
Solution Approach 1:
The system implements a feedback loop where the docking controller communicates with the wheelchair controller to exchange data about wheelchair characteristics, docking status, and system configuration. This bidirectional communication enables automated adjustment and confirmation of proper docking without requiring complex manual procedures.
Data Source
AI summary
A wheelchair system may include vehicles including docking systems for a wheelchair. The wheelchair and the docking system may be coupled to controllers in communication with one another via a secure communication channel. A user may use a computing device to send signals to and receive signals from the controllers and a data processing system to select the docking system to which the wheelchair may be secured.