Personalized alarm provision system using biometric information and motion information on basis of doppler signal
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Publication Number
US-12690823-B2
Publication Date
2026-07-28
Expiration Date
Abstract
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.
Core Innovation
A personalized alarm provision system acquires biometric signal information and motion signal information based on a Doppler signal obtained from a radar signal emitted toward a subject. The biometric signal and motion signal information acquisition device acquires a reflected and returned radar signal, processes the Doppler signal to acquire a first phase Doppler signal and a second phase Doppler signal, and processes the first and second phase Doppler signals to acquire first signal information and second signal information. Using a preset algorithm, the device analyzes the first signal information and the second signal information to acquire biometric signal information and motion signal information.
The server acquires life pattern information by statistically calculating a time of staying in each space of a household based on the motion signal information and the biometric signal information. Based on the life pattern information, the server sets living spaces and danger spaces. The system generates alarm signals based on stay times in the danger spaces, ratios of time spent in a living space relative to time outside the living space, and an activity decrease in a preset time zone.
The server determines sleeping and non-sleeping states and derives maximum, minimum, and average heart rate and respiration rate for each state. The server determines normal ranges of the heart rate and respiration rate for the sleeping or non-sleeping state, and generates an alarm signal when the heart rate and the respiration rate exceed the normal range. The system also includes an emergency determination that corrects a heart rate range using age, gender, exercise information, drug information, and weight information, and generates an alarm signal when the corrected heart rate exceeds a preset range.
Claims Coverage
The partial content provides one independent claim (clm-00001). The main inventive features are extracted below; dependent claims clm-00002 through clm-00006 further refine alarm-space designation, alarm-signal generation conditions, activity detection, sleep/non-sleep vital-sign baselining, and emergency heart-rate range correction using external subject information.
Personalized alarm provision using Doppler-based biometric and motion information
A personalized alarm provision system using biometric information and motion information based on a Doppler signal, comprising a biometric signal and motion signal information acquisition device using the Doppler signal, a server, and a guardian terminal, wherein the biometric signal and motion signal information acquisition device includes a Doppler signal acquisition unit that emits a radar signal to a subject, acquires a reflected and returned radar signal to acquire the Doppler signal, processes the Doppler signal to acquire a first phase Doppler signal and a second phase Doppler signal; a Doppler signal processing unit for processing the first phase Doppler signal and the second phase Doppler signal to acquire first signal information and second signal information; and a signal information output unit for acquiring the first signal information and the second signal information, and analyzing the first signal information and the second signal information using a preset algorithm to acquire biometric signal information and motion signal information.
Life-pattern-based living space and danger space setting from staying time
The server acquires life pattern information by statistically calculating a time of staying in each space of a household based on the motion signal information and biometric signal information, and sets living spaces and danger spaces on the basis of the life pattern information.
The claim coverage centers on Doppler-signal acquisition and processing to derive biometric and motion signal information, and on a server-side life-pattern computation that uses staying time in household spaces to designate living spaces and danger spaces for generating personalized alarm signals.
Stated Advantages
Generates alarm signals based on statistically calculated life pattern information and detected biometric and motion events.
Reduces false alarms by determining sleeping and non-sleeping states and using normal ranges of heart rate and respiration rate for each state.
Improves emergency determination by correcting a heart rate range using age, gender, exercise information, drug information, and weight information.
Documented Applications
Personalized alarm provision for a subject based on biometric signal information and motion signal information acquired from a radar Doppler signal and analyzed with life pattern information in household spaces.
Emergency determination and alarm signal generation using corrected heart-rate information based on age, gender, exercise information, drug information, and weight information.
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