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Method and device for detecting wearable state of wearable device

A wearable state, wearable device technology, applied in the recognition of patterns in signals, the input/output process of data processing, the input/output of user/computer interaction, etc., can solve large errors, inaccurate judgment of wearable device status, etc. question

Active Publication Date: 2022-01-11
LAUNCH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the influence of temperature, internal mechanical structure, and external noise, the accelerometer will produce relatively large errors, which will lead to inaccurate judgments on the status of wearable devices.

Method used

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  • Method and device for detecting wearable state of wearable device

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Embodiment Construction

[0024] Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.

[0025] see figure 1 , figure 1 It is a schematic flowchart of a method for detecting the wearing state of a wearable device provided in the embodiment of the present application.

[0026] S101. Collect a pulse wave signal of a user.

[0027] In this embodiment of the present application, a heart rate sensor is used to collect pulse wave signals. Specifically, when the ventricle contracts, blood rushes out of the aortic valve and injects blood into the aorta, the internal pressure of the aorta suddenly increases, and the blood vessel wall expands rapidly. It has elasticity and retracts, so that the arterial wall will periodically fluctuate with the contraction of the ventricle, forming a pulse. In this way, the blood and volume in the skin change pulsatingly under the action of the heart. Because the light will attenuate when it ...

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Abstract

The present application discloses a method and a device for detecting the wearing state of a wearable device. The method includes: collecting the pulse wave signal of the user; extracting a peak point from the pulse wave signal; obtaining the R-R interval according to the peak point; The signal-to-noise ratio of the PPG signal of the pulsography method is matched with the R-R interval related parameters in the historical data and the signal-to-noise ratio of the PPG signal to obtain the wearing state of the wearable device. Corresponding devices are also disclosed. The parameters related to the R‑R interval are obtained by detecting the peak point of the collected pulse wave signal. Then according to the matching results of R-R interval related parameters and PPG signal-to-noise ratio and historical data, the wearable state of the wearable device is obtained. The present application can accurately extract the peak point of the pulse wave signal, and accurately give the wearing state of the wearable device.

Description

technical field [0001] The present application relates to the field of wearable devices, in particular to a method and device for detecting the wearing state of a wearable device. Background technique [0002] After wearable devices have added functions such as calling, positioning, sending text messages, monitoring data, and installing and running software, their application scenarios have become wider and wider. However, most functions of smart wearable devices need to be based on the wearable state of the wearable device. Accurate judgment can only be used. [0003] At present, most wearable devices on the market judge the wearing state based on the measurement data of the accelerometer. However, due to the influence of temperature, internal mechanical structure, and external noise, the accelerometer will produce relatively large errors, which will lead to inaccurate judgments on the status of wearable devices. Contents of the invention [0004] The present applicatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/01G06K9/00
CPCG06F3/011G06F3/015G06F2218/14G06F2218/04G06F2218/10
Inventor 刘均任娟娟
Owner LAUNCH TECH CO LTD
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