Blood Pressure Detection Using ECG and PPG Signal Validation
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Solution Overview
Problem
Existing blood pressure measurement methods are complex and difficult for the elderly to learn and use, and they often result in inaccurate readings due to unstable user interactions with detection points.
Innovation Solution
A method and user equipment that detect electrocardiogram (ECG) and photoplethysmogram (PPG) signals using specific contact points and circuits, enabling a blood pressure detection application only when the signals match prestored references, thereby simplifying the measurement process and improving accuracy by ensuring stable user contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the existing blood pressure measurement method is used, then the measurement can be performed, but the operation process is complex and difficult for the elderly to learn and master
Solution Approach 1:
The system automatically detects whether the user has steadily touched the detection points by monitoring signal quality, and automatically enables the blood pressure detection application only when stable signals are obtained. This eliminates the need for manual verification and complex user operations, allowing the system to serve itself in validating measurement conditions.
Solution Approach 2:
The system performs preliminary detection of ECG and PPG signals and validates their stability before enabling the blood pressure detection application. This preliminary action ensures that only valid measurements are processed, preventing inaccurate readings from unsteady user contact while simplifying the overall operation flow for users.
2Measurement precision
If the existing blood pressure detection solution is used, then measurement can be performed, but accuracy of detection result is affected due to unsteady user touch
Solution Approach 1:
The system continuously monitors the quality of ECG and PPG signals during measurement and uses this feedback to determine whether the user has steadily touched the detection points. Based on this feedback, the system automatically enables or disables the blood pressure detection application, ensuring that only reliable measurements with stable user contact are processed, thereby improving measurement precision.
Solution Approach 2:
The system replaces manual verification of user contact stability with automated signal-based detection. By substituting the mechanical act of manual checking with electronic signal monitoring and automatic validation, the system ensures consistent and reliable measurement conditions without requiring user intervention in the validation process.
3Adaptability or versatility
If multiple detection points are used, then comprehensive measurement can be performed, but the quantity of touch locations increases and stability of touching is reduced
Solution Approach 1:
The system merges the ECG detection function and PPG detection function into a single integrated measurement process. By combining these functions and using a unified signal validation mechanism, the system reduces the total number of separate touch locations required while maintaining comprehensive measurement capability, thereby improving the stability of user contact.
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
The method simplifies the blood pressure measurement process and enhances accuracy by automatically enabling the blood pressure detection application when stable ECG and PPG signals are detected, reducing errors from unsteady user interactions.
Implementation Method 1
detecting, by user equipment UE, an electrocardiogram ECG signal of a user by using a first ECG contact and a second ECG contact that are connected to an ECG detection circuit of the UE
Implementation Method 2
detecting a PPG signal of the user by using a PPG detection point connected to the PPG detection circuit
Data Source
AI summary
Embodiments disclose a blood pressure parameter detection method. The method includes: detecting, by user equipment UE, an electrocardiogram ECG signal of a user by using a first ECG contact and a second ECG contact that are connected to an ECG detection circuit of the UE; when determining that the detected ECG signal matches a pre-stored reference ECG signal, enabling, by the UE, a photoplethysmogram PPG detection circuit, and detecting a PPG signal of the user by using a PPG detection point connected to the PPG detection circuit; and when determining that the detected PPG signal matches a pre-stored reference PPG signal, enabling, by the UE, a blood pressure detection application, and processing the detected ECG signal and the detected PPG signal by using the blood pressure detection application to obtain a blood pressure parameter of the user.