Wearable Sensor Patch Data Reduction for Multi-Parameter Monitoring
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Solution Overview
Problem
Wearable body sensors that monitor physiological parameters face a trade-off between being small in size and having a long run time, typically requiring larger sensors for processing power, which limits them to monitoring only one parameter at a time.
Innovation Solution
A system comprising a sensing patch and a separate processor that wirelessly transmits and processes data, allowing adjustable data reduction based on system parameters and patient state, enabling the monitoring of multiple parameters without the need for extensive processing power on the patch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the sensor is made larger to provide sufficient processing power for long run time, then the run time is extended, but the size increases and comfort is reduced
Solution Approach 1:
The patent divides the processing functions into two segments: the wearable sensor performs only data collection and minimal preprocessing, while the server performs the computationally intensive data processing, analysis, and storage. This segmentation allows the sensor to remain small and lightweight while the system as a whole achieves long run time through efficient energy usage at the sensor and powerful processing at the server.
Solution Approach 2:
The patent extracts the processing power from the wearable sensor itself and relocates it to a remote server. By taking out the computational functions from the constrained wearable environment and placing them in an unconstrained server environment, the sensor can maintain small size while the system achieves extended operational duration through efficient energy management.
2Area of moving object
If the sensor is made smaller to enhance comfort, then the size is reduced, but the processing power is insufficient for long run time
Solution Approach 1:
The patent segments the system into a minimal wearable sensor unit and a remote server, where the sensor only handles data acquisition and the server handles all processing. This allows the sensor to be made small for comfort while the system achieves long run time through the server's unlimited processing capacity and energy resources.
Solution Approach 2:
The patent introduces a communication interface as an intermediary between the wearable sensor and the server. This intermediary enables the small sensor to offload its data to the server for processing, allowing the sensor to remain compact while the system achieves extended operational duration through the server's resources.
3Area of moving object
If the sensor monitors only one physiological parameter, then the sensor size is kept small, but the versatility is reduced
Solution Approach 1:
The patent creates a universal monitoring system where a single small sensor can monitor multiple physiological parameters by transmitting raw data to a server that performs the specialized analysis for each parameter type. The server's multi-functional processing capabilities enable the system to adapt to different monitoring needs without increasing sensor size.
Solution Approach 2:
The patent implements dynamic adaptability where the server can adjust its processing algorithms and analysis methods based on the specific physiological parameters being monitored and the patient's condition. This dynamic processing allows the system to provide versatile multi-parameter monitoring while the sensor remains small and simple.
Data Source
AI summary
A system for detecting one or more physical assessment parameters of a subject includes a sensing patch and a processor. The sensing patch is configured to sense signals from the subject corresponding to one or more physical assessment parameters, reduce sensed parameter data corresponding to the sensed signals, and transmit the sensed parameter data. The sensing patch also includes at least one adjustable sensing patch parameter. The processor is separate from the sensing patch and configured to receive the sensed parameter data from the sensing patch and transmit a command to the sensing patch. The sensing patch is configured to perform different amounts of data reduction on the sensed parameter data before transmitting the sensed parameter data to the processor. These different amounts of data reduction are determined at least in part by one or more system parameters.