Composite Signal Splitting via PCA and MLR for Multi-Sensor Modules
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Solution Overview
Problem
Conventional composite sensor modules face interference issues due to multiple signal output terminals, leading to inaccurate monitoring and increased size and complexity, as they integrate multiple detection signals for temperature, humidity, gas leakage, fire, smoke, and organic gases into a single output terminal.
Innovation Solution
A method and device that utilize Principal Component Analysis (PCA) and Multi-linear Regression (MLR) to separate individual detection signals from a composite signal received from a multi-composite sensor, using a pre-stored frequency characteristic or matrix to accurately identify each signal and recognize abnormality signs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple signal output terminals are provided for each sensor to individually output detection signals, then accurate monitoring is achieved, but the size and complexity of the composite sensor module rapidly increase
Solution Approach 1:
The patent combines multiple detection signals from different sensors into a single composite signal transmitted through one signal output terminal. The monitoring system then separates and analyzes the individual detection signals from this composite signal, achieving both signal integration (reducing complexity) and individual signal processing (maintaining accuracy).
Solution Approach 2:
The single signal output terminal serves multiple functions by transmitting a composite signal that contains information from all sensors. This universal terminal replaces multiple dedicated terminals, reducing the number of components while maintaining the ability to individually monitor each sensor's detection signal through signal separation techniques.
2Measurement precision
If multiple signal output terminals are provided for each sensor to individually output detection signals, then accurate monitoring is achieved, but interference between detection signals increases
Solution Approach 1:
By merging multiple detection signals into a single composite signal transmitted through one terminal, the patent eliminates the interference that occurs when multiple signals share common wiring paths. The separation of signals occurs at the processing stage rather than through physical signal routing, avoiding electromagnetic interference between adjacent terminals.
3Device complexity
If a single signal output terminal is used to output a composite signal, then the size and complexity of the sensor module is reduced, but the detection signals cannot be easily separated
Solution Approach 1:
The patent applies preliminary signal processing techniques at the monitoring system end to separate the composite signal into individual detection signals. By preparing separation algorithms and signal processing methods in advance, the system can efficiently extract individual sensor signals from the composite signal without requiring complex hardware modifications to the sensor module itself.
Data Source
AI summary
The present invention relates to a method and a device for splitting a composite signal received from a multi-composite sensor, and more particularly, to a method and a device for splitting a composite signal received from a multi-composite sensor in which a composite signal, in which various detection signals for a temperature, humidity, gas leakage, fire, smoke, and an organic gas are mixed and integrated into one signal, is split into each individual detection signal and recognized.