Wearable Movement Cueing System for Fall Detection and Gait Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies fail to effectively monitor and prevent unsafe or undesirable movements in individuals with movement disorders, such as those resulting from stroke or traumatic brain injury, leading to increased fall risk and limited mobility, with existing wearable systems either ineffective or stigmatizing.
Innovation Solution
A portable, wearable system using sensors and intelligent algorithms to detect impaired gait, balance, and posture, providing real-time cues to the user through vibrational or auditory feedback to correct unsafe movements, allowing for continuous monitoring and training outside clinical settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wearable fall detection systems are implemented, then fall detection capability is improved, but false alarm rate increases and privacy concerns arise
Solution Approach 1:
The fall detection system is segmented into multiple independent sensor components (accelerometer, gyroscope, magnetometer) that each measure different physical parameters. The system divides the detection task into separate measurement functions, combining their outputs through algorithmic processing to achieve reliable fall detection while reducing false alarms through cross-validation of multiple data sources.
Solution Approach 2:
The system changes detection parameters dynamically by adjusting sensitivity thresholds and detection criteria based on individual user profiles, activity contexts, and environmental conditions. Detection parameters such as acceleration thresholds, time-window durations, and confidence levels are modified to optimize the balance between detection sensitivity and false alarm reduction for different users and situations.
2Reliability
If continuous movement monitoring is implemented, then movement safety is improved, but device complexity increases
Solution Approach 1:
The wearable device is designed as a multi-functional system that performs fall detection, gait analysis, posture monitoring, and activity recognition using the same sensor suite. The accelerometer, gyroscope, and magnetometer serve multiple detection purposes simultaneously, reducing overall system complexity while maintaining comprehensive movement safety monitoring through shared hardware resources and integrated processing algorithms.
Solution Approach 2:
Multiple sensor types (accelerometer, gyroscope, magnetometer) and their respective processing functions are merged into a single integrated wearable unit. The system combines data from these diverse sensors through fused algorithms to achieve comprehensive movement monitoring, reducing the need for separate devices and simplifying the overall system architecture while maintaining high safety monitoring capability.
3Ease of operation
If real-time cueing is provided, then movement correction is improved, but user acceptance decreases due to stigmatization
Solution Approach 1:
The system uses subtle, inconspicuous haptic feedback mechanisms (vibrations similar to smartphone notifications) rather than prominent auditory or visual cues. This approach provides effective movement correction while minimizing social visibility and stigmatization, as the feedback is perceived as a common technological interaction rather than a medical intervention, reducing the psychological burden and social attention associated with wearable therapy devices.
Data Source
AI summary
The present invention relates to systems and methods for helping subjects improve safety and efficiency of their movements; particularly subjects who have suffered an injury or suffer from a movement or other such disorder. More particularly, the present invention relates to such a system and method for monitoring a subject's movement to detect or predict unsafe, undesirable, or impaired movements, or symptoms of movement disorders, and also a system for providing possible treatment methods for such conditions. The present invention further relates to a method and system of providing cues or stimuli to the subject when such unsafe or undesirable movements, instabilities or symptoms are detected or predicted. Most particularly, the present invention relates to a subject-customized and adaptive movement recovery system, and method of providing therapy and training to improve functional motor recovery and safety of movement of a subject suffering from an injury or from movement disorder(s).