Doppler Radar Biometric Alarming for Personalized Hazard Detection
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Solution Overview
Problem
Existing danger notification services for elderly or disabled individuals fail to provide personalized alerts due to noise interference in installation-type devices and lack of personalized biometric and motion signal analysis.
Innovation Solution
A biometric signal and motion signal information acquisition device using a Doppler signal, comprising a Doppler signal acquisition unit, processing unit, and signal output unit, to accurately acquire and analyze biometric and motion signals, combined with a server that sets danger spaces and generates personalized alarms based on life pattern information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If installation-type devices are used to measure physical activity information from a distance, then the convenience of use is improved, but the measurement precision deteriorates due to noise interference and difficulty in distinguishing subtle differences
Solution Approach 1:
The patent replaces mechanical contact-based measurement (wearable devices) with electromagnetic wave-based measurement (millimeter wave radar). The radar system emits electromagnetic waves that reflect off the user's body, and Doppler signal processing extracts biometric information without physical contact, thus maintaining convenience while improving measurement precision through advanced signal processing
Solution Approach 2:
The patent introduces Doppler signal processing as an intermediary between the radar signal and the final measurement result. The system processes the reflected radar signals through Doppler analysis to extract motion and biometric information, acting as a mediator that transforms raw electromagnetic signals into precise measurements while filtering out noise
2Device complexity
If generalized danger situations are assumed for notification services, then the device complexity is reduced, but the adaptability deteriorates due to inability to provide personalized services
Solution Approach 1:
The patent implements feedback mechanisms where the system continuously monitors biometric and motion signals, compares them against personalized baseline patterns, and adjusts danger detection thresholds accordingly. The server learns individual user patterns over time and provides customized danger notifications based on deviations from personal norms, enabling personalized service without excessive complexity
Solution Approach 2:
The system performs preliminary actions by establishing personalized baseline patterns during normal usage periods before actual danger detection is needed. The server pre-processes and stores individual user biometric and motion data, creating reference profiles that enable rapid personalized danger assessment when needed, reducing real-time complexity while maintaining high adaptability
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 system effectively provides personalized danger situation alerts by accurately acquiring and analyzing biometric and motion signals, enabling timely notification of potential hazards based on individual life patterns.
Implementation Method 1
a Doppler signal acquisition unit for emitting a radar signal to a subject, acquiring a reflected and returned radar signal to acquire a Doppler signal
Data Source
AI summary
The present invention relates to a personalized alarm provision system using biometric information and motion information on the basis of a Doppler signal, comprising: an acquisition device that emits a radar signal to a subject and analyzes a Doppler signal generated through a reflected wave acquired by reflecting the emitted radar signal to acquire bio-signal or motion signal information of the subject from the Doppler signal; a server; and a guardian terminal.