Remote Vital Signs Sensor with Body Part Identification
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Solution Overview
Problem
Camera-based vital signs monitoring systems cannot accurately determine which body part is being measured from different sensor designs, leading to inaccuracies in calibration and measurement readings.
Innovation Solution
A device and method that uses a sensor to obtain measurement readings from a living being from a distance, incorporating an identification unit to identify the body part, an extraction unit to extract relevant signals, an evaluation unit to obtain adjustment information, and an adjustment unit to generate accurate output signals using calibration curves specific to the identified body part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If camera-based sensors are used to measure vital signs from a distance, then measurement comfort and versatility are improved, but measurement precision deteriorates due to inability to identify body parts and apply appropriate calibration
Solution Approach 1:
The patent introduces an identification unit as an intermediary component that analyzes measurement readings to determine which body part is being measured. This intermediary enables the system to automatically select appropriate calibration curves, thereby maintaining measurement precision while using comfortable camera-based remote sensing.
2Measurement precision
If traditional body-part specific sensors are used, then measurement precision is improved through dedicated calibration, but device complexity and lack of versatility worsen due to need for multiple sensors
Solution Approach 1:
The patent creates a universal sensor system that can measure multiple body parts using a single camera-based device. By incorporating an identification unit that automatically recognizes the measured body part and selects appropriate calibration curves, the system achieves the versatility of multiple sensors without requiring actual multiple specialized devices.
3Ease of operation
If body-part independent calibration is used for camera-based sensors, then ease of operation is improved, but measurement precision deteriorates due to lack of body-part specific adjustment
Solution Approach 1:
The patent implements a dynamic calibration approach where the calibration curve is automatically selected based on real-time identification of the measured body part. This dynamic adaptation allows the system to maintain measurement precision equivalent to body-part specific sensors while keeping the operation simple and automatic for the user.
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
Enables accurate measurement of physical phenomena like blood oxygenation and vital signs from a distance without the need for body-part specific sensors, improving accuracy and comfort by allowing simultaneous measurement from multiple body parts.
Implementation Method 1
Each body part has different light reflection and/or light transmission characteristics due to the inner structure of the skin
Data Source
AI summary
The present invention relates to a device (10) for obtaining and processing measurement readings including at least a component representative of a physical phenomenon in a living being (16), comprising a sensor (12) for obtaining measurement readings from at least one body part of a living being (16) from a distance having at least a component representative of the physical phenomenon in the living being (16), an identification unit (26) for identifying the at least one body part of the living being (16); an extraction unit (38) for extracting at least one first signal from the measurement readings representing at least one component representative of the physical phenomenon, an evaluation unit (30) for obtaining adjustment information according to the at least one identified body part, and an adjustment unit (34) for adjusting the at least one first signal according to the adjustment information and for generating at least one output signal representing the physical phenomenon of the living being (16).