Finger Ring Phone Holder for Jitter-Compensated Vital Sign Sensing
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Solution Overview
Problem
Conventional heart rate monitors are bulky, inconvenient, and cause discomfort due to the need for straps with electrodes, while smart finger rings experience jitter leading to inaccurate heart rate and blood oxygen detection.
Innovation Solution
A mobile phone holder with a finger ring buckle and detection module that includes first and second detection units for heart rate and blood oxygen, respectively, with a processing unit to compensate data using acceleration data to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional heart rate monitors with straps and electrodes are used, then heart rate detection is achieved, but the device becomes bulky and causes user discomfort
Solution Approach 1:
The patent extracts the detection function from the bulky strap device and relocates it to a small finger ring buckle. The light sensor and acceleration sensor are integrated into the finger ring, eliminating the need for chest straps and electrodes, thus achieving comfortable wearability while maintaining detection capability
Solution Approach 2:
The finger ring buckle serves multiple functions: it acts as both a decorative accessory and a health monitoring device. The device integrates heart rate detection, blood oxygen detection, and motion detection capabilities into a single wearable component that users can wear continuously without discomfort
2Ease of operation
If smart finger ring buckles are used for health monitoring, then user comfort is improved, but jitter occurs affecting detection accuracy
Solution Approach 1:
The patent implements feedback by using the acceleration sensor to detect motion states and feeding this information back to the processing unit. The processing unit uses the acceleration data to identify jitter periods and compensates the heart rate and blood oxygen detection data accordingly, thereby maintaining accuracy during movement
Solution Approach 2:
The patent changes the detection parameters by introducing acceleration data as an additional parameter for compensation. The processing unit adjusts the heart rate and blood oxygen measurements based on the acceleration values, effectively correcting for errors introduced by finger movement and jitter
3Weight of moving object
If finger ring buckle is used instead of strap monitor, then device portability is improved, but detection stability deteriorates due to jitter
Solution Approach 1:
The acceleration sensor acts as an intermediary that detects motion disturbances and provides compensation data. This intermediary element enables the system to account for and correct jitter effects, maintaining detection stability despite the lightweight, movable finger ring design
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
Accurately detects heart rate and blood oxygen by compensating for jitter through acceleration data, providing more reliable health monitoring.
Implementation Method 1
conventional heart rate monitors typically determine the heart rate from electrocardiogram photoplethysmographic signals
Implementation Method 2
The second detection unit is configured to detect acceleration data of the detection module
Implementation Method 3
The processing unit is connected to the data transmission unit and is configured to compensate the heart rate data and the blood oxygen data through the acceleration data
Data Source
AI summary
A mobile phone holder includes a finger ring buckle and a detection module. The finger ring buckle includes a lower finger ring buckle and an upper finger ring buckle. An inner finger ring buckle is disposed in the lower finger ring buckle. A support rod is disposed in the inner finger ring buckle. The detection module mounted on the support rod includes a first detection unit, a second detection unit, a data transmission unit, and a processing unit. The first detection unit is configured to detect heart rate data and blood oxygen data. The second detection unit is configured to detect acceleration data of the detection module. The processing unit is configured to compensate the heart rate data and the blood oxygen data through the acceleration data. The data transmission unit is configured to transmit compensated heart rate data and compensated blood oxygen data to the terminal device.