Mobile Rehab Platform With Motion-Sensed AR Projection
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Solution Overview
Problem
Existing rehabilitation and exercise systems lack mobility, flexibility, and adaptability, requiring fixed installations, complex controls, and limited interaction methods, which hinder their use in diverse environments and for individuals with motor limitations.
Innovation Solution
A mobile platform integrating a processing unit, motion sensor, and projector on a wheeled base with robotic navigation, allowing flexible projection on floors or walls, controlled by body movements without physical devices, and featuring an empathic design for enhanced interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed installation system is used for game projection, then the system provides stable and reliable game delivery, but the system loses mobility and cannot be easily transported to different locations
Solution Approach 1:
The system transitions from a static fixed installation to a dynamic mobile platform with wheeled base and robotic navigation, allowing the projector to move autonomously to different locations while maintaining reliable game delivery through controlled movement and positioning
2Manufacturing precision
If a fixed projection system is used, then the system provides consistent projection quality, but the system cannot be easily reconfigured for different spaces or surfaces
Solution Approach 1:
The projection system becomes dynamically reconfigurable through robotic navigation and articulated mechanisms that adjust projection direction and angle, allowing the same high-quality projector to adapt to different spaces and surface types while maintaining projection quality
Solution Approach 2:
The mobile projection system gains universal capability to project onto various surface types (floor, wall, ceiling) and in different spatial configurations, making a single system suitable for multiple rehabilitation environments and exercise scenarios
3Ease of manufacture
If traditional exercise systems are used, then the equipment is simple and easy to manufacture, but the systems lack motivation and engagement for patients
Solution Approach 1:
The system replaces traditional mechanical exercise equipment with a digital game-based approach using projection and motion sensors, transforming repetitive physical exercises into engaging interactive games that maintain patient motivation while using relatively simple hardware components
4Device complexity
If physical contact controls are used for game interaction, then the control mechanism is simple and direct, but the system becomes inaccessible to patients with motor limitations
Solution Approach 1:
The system replaces physical contact controls with non-contact motion sensing technology that detects body movements and gestures, allowing patients with motor limitations to interact with games through natural movements without requiring physical contact with control devices
Solution Approach 2:
Motion sensors act as an intermediary between the patient's body movements and the game control system, translating subtle physical gestures into game actions without requiring direct physical contact with controls, thus bridging the gap between simple control and accessibility
Data Source
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AI summary
It is the object of the present invention to provide a mobile platform that allows the execution of physical stimulation and rehabilitation exercises through augmented reality games, of simple preparation and configuration, adaptable to various spaces and operating conditions. For this purpose, the platform comprises a sensory unit (2) and a projection unit (5), which are controlled by a processing unit (4). All these units are integrated in a mobile base (9), to allow the displacement of the platform. This also comprises a rotating joint (7) and an articulated arm (8) to allow the projection of games on the floor or on the wall.