Human body vital sign monitoring method oriented to motion scene

• Main Authors: ZHU DONGFU, XU YIFAN, QIU JIEFAN, XU RUIJI, CHENG RAN
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; DIAGNOSIS; ELECTRIC DIGITAL DATA PROCESSING; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEDICAL OR VETERINARY SCIENCE; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURGERY; TESTING

The invention discloses a human body vital sign monitoring method oriented to a motion scene, which comprises the following steps of: receiving a radar reflection signal reflected by a human body, mixing the radar reflection signal and a radar emission signal to obtain an original intermediate frequency signal, performing Fourier transform on the original intermediate frequency signal, constructing characteristic frequency spectrum data, and calculating the characteristic frequency spectrum data according to the characteristic frequency spectrum data; and adopting a sliding window sampling method for the generated characteristic spectrogram, intercepting the characteristic spectrogram according to a preset window length and step length, inputting the characteristic spectrogram into the trained classifier network model, and identifying a motion state or a non-motion state and a motion type in the motion state. And monitoring the breathing or heartbeat frequency in a non-motion state within the motion time. The