Earlier this morning, Beijing Xiaomi Songguo Electronics Co., Ltd. and Beijing Xiaomi Mobile Software Co., Ltd. published a patent for new technology. It shows “fall detection methods, devices, electronic equipment, and storage media” and the publication number is CN113450537A.
Going by the patent abstract of Qichacha, the patent relates to fall detection method, equipment, electronic equipment, and storage medium that belongs to the field of intelligent detection technology.
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The method includes the following:
- Getting a first ultrasonic signal. According to the first ultrasonic signal and the second ultrasonic signal, determine the acoustic feature vector corresponding to the first ultrasonic signal.
- Obtain the low-frequency sound wave signal, where the low-frequency sound wave signal and the first ultrasonic signal occur within the same time range.
- Now perform feature extraction on the low-frequency sound wave signal to obtain the low-frequency sound wave signal corresponding to the low-frequency sound wave signal.
- Feature vector, input the acoustic feature vector and low-frequency feature vector into the preset fall detection model to determine whether someone has fallen in the environment.
Moreover, it is reported that the publication uses a fall detection model to monitor the ultrasonic signal emitted by the ultrasonic generator into the environment and the low-frequency sound wave signal in the environment to accurately determine whether someone in the environment has fallen.
The detection efficiency is high and can avoid causing The user to be inconvenient to move while ensuring the comfort of the user’s daily life.
