Air Pressure and Light Sensor Monitoring Dressing Activity
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Solution Overview
Problem
Current methods for monitoring dressing activity in subjects are inadequate, often requiring complex and costly sensor arrangements or intrusive methods like RFID tags and video cameras, which are not effective in capturing variability and trends in dressing behaviors over time.
Innovation Solution
A system utilizing a combination of air pressure and supplementary sensors, such as light sensors or accelerometers, worn by the subject to detect changes in air pressure and environmental properties, allowing for non-intrusive monitoring of dressing activities by analyzing concurrent changes in sensor signals to infer dressing events without the need for extensive sensor networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If numerous sensors are employed to capture enough information about a subject's activities and environment, then the ability to identify specific activities improves, but the complexity and cost of the system increases
Solution Approach 1:
The patent extracts and focuses on monitoring a specific activity (dressing) rather than attempting to monitor all activities. By using a small number of sensors (air pressure and light) targeted at detecting dressing-specific patterns, the system achieves accurate dressing activity identification without the complexity of numerous sensors needed for comprehensive activity monitoring.
Solution Approach 2:
The patent employs sensors (air pressure and light sensors) that can serve multiple functions. These sensors are used to detect various parameters (pressure changes, light intensity) that collectively enable dressing activity detection, replacing the need for multiple specialized sensors.
2Measurement precision
If RFID tags are attached to items of clothing for monitoring dressing activity, then dressing activity detection becomes possible, but the system requires washable tags on numerous clothing items and an RFID reader, increasing complexity
Solution Approach 1:
The patent replaces the RFID electronic system with a simpler mechanical/physical sensing approach using air pressure and light sensors. This substitution eliminates the need for RFID tags, readers, and associated electronics, achieving dressing detection through physical parameter changes during the dressing process.
Solution Approach 2:
The patent uses simple, inexpensive sensor components (air pressure sensor, light sensor) that can be integrated into a single device, replacing the more complex and costly RFID tag and reader system. The sensors are straightforward components without the need for multiple distributed elements.
3Measurement precision
If video cameras are used to capture and process images of the monitored subject, then dressing activity can be detected, but the method becomes highly intrusive and limited to specific locations
Solution Approach 1:
The patent replaces the optical/video-based detection system with a mechanical sensing system using air pressure and light sensors. This substitution enables unobtrusive monitoring that does not require visual capture, thereby reducing intrusiveness while maintaining dressing activity detection capability.
Solution Approach 2:
The sensor device can be worn or carried by the subject themselves, making the monitoring portable and adaptable to various locations rather than being fixed to specific installation locations like video cameras. The system serves itself by being personally portable.
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
This approach reduces complexity and cost while providing accurate and non-intrusive monitoring of dressing activities, enabling the assessment of physical and mental health by analyzing trends and patterns in dressing behaviors over time, thus supporting timely interventions.
Implementation Method 1
a first sensor output signal representative of detected air pressure within a surrounding of the subject
Implementation Method 2
a second sensor output signal representative of a detected property of at least one of: the subject; and the environment
Implementation Method 3
a second sensor output signal representative of a detected property of at least one of: the subject; and the environment
Data Source
AI summary
A concept for monitoring a subject employs: a first sensor output signal representative of detected air pressure; and a second sensor output signal representative of a detected property of at least one of: the subject; and the environment. A dressing activity of the subject is determined based on the first sensor output signal and the second sensor output signal. Information about a dressing activity of the subject may, for example, be useful for the purpose of assessing the subject's physical and/or mental abilities.