Sleeping posture detection method and device

Abstract

When a human body is in different sleeping postures, the contact areas between the shoulders and the neck of the human body and a pillow are different, and the sleeping posture of the human body can be accurately judged by obtaining and analyzing the contact areas, specifically, when the human body is in a supine state, the human body is in a sleep state; the contact area between the shoulders and the neck and the pillow is far larger than the contact area between the human body and the pillow when the human body lies on the side; the millimeter wave radar is used for detecting reflection signals of the shoulders and the neck of the human body within a preset distance, and the accuracy of sleeping posture detection is ensured by establishing the association between the shoulder and neck reflection area information of the human body and the sleeping posture. The millimeter wave radar is controlled by a sensor to be automatically started and stopped, millimeter waves can penetrate through clothes, quilts and hair and directly act on the human body harmlessly, and even if the shoulders and the neck do not make direct contact with a pillow, the shoulders and the neck can be detected within the range of the radar waves. The system is high in detection precision and interference resistance, and can provide accurate sleeping posture signals for a lifting pillow or other bedding.

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