Wearable device capable of monitoring heart rate based on photoplethysmography and monitoring method

A technology of heart rate monitoring and wearable equipment, which is applied in the fields of pulse rate/heart rate measurement, diagnostic recording/measurement, medical science, etc. It can solve problems such as unfavorable treatment, and achieve the effect of accurate, reliable and high-efficiency monitoring data

Inactive Publication Date: 2016-10-26
TIANJIN UNIV
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Problems solved by technology

Although many communities have enabled alarm tools such as "pagers", these devices require the initiative of the elderly living alone, which is not conducive to emergency treatment

Method used

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  • Wearable device capable of monitoring heart rate based on photoplethysmography and monitoring method
  • Wearable device capable of monitoring heart rate based on photoplethysmography and monitoring method
  • Wearable device capable of monitoring heart rate based on photoplethysmography and monitoring method

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing, the present invention will be further described:

[0035] A wearable device for heart rate monitoring based on photoplethysmography, including a main control chip, a first heart rate sensor, a second heart rate sensor, a communication module and a display module, wherein:

[0036] The main control chip is provided with a control module, a signal processing module, an early warning module and an output module,

[0037] The control module controls the first heart rate sensor and the second heart rate sensor to collect the user's heart rate value and output a PPG signal. The first heart rate sensor and the second heart rate sensor are embedded on the watch chain of the wearable watch, and are used to detect the user's size respectively. The heart rate at the artery and the radial artery. The pulses at these two places are more obvious and easy to measure. Both heart rate sensors are attached to the skin surface, but not too t...

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Abstract

The invention discloses a heart rate monitoring wearable device and a monitoring method based on the photoelectric volumetric method. The invention is based on the photoelectric volumetric method to monitor the heart rate of the elderly in real time. The heart rate measurement module uses a heart rate sensor and embeds the heart rate sensor in a wearable watch middle. The main control chip is C8051F340, which is used to control the work of the sensor as well as signal processing and calculation. In order to make the measurement more accurate, there are two heart rate sensors on each wearable device, which measure the heart rate at the ulnar artery and the radial artery respectively. During the measurement process, due to the intentional or unintentional movement of the elderly, motion artifacts will be generated, which will affect the calculation results. Therefore, the output PPG signal needs to be processed (removing motion artifacts) after being amplified and input to the main control chip after analog-to-digital conversion. Perform heart rate calculations. The present invention uses a compressed sensing algorithm to filter the noise of the PPG signal, and since both the signal and the noise are unknown, the gradient projection algorithm is used to recover the signal, and finally the PPG signal is reconstructed.

Description

technical field [0001] The present invention relates to the technical field of wearable electronic devices, in particular to a wearable device and a monitoring method for heart rate monitoring based on photoelectric volumetric method. Background technique [0002] With the development of society, there are more and more empty-nest elderly people, and many elderly people are found dead at home for many days. Although many communities have enabled alarm tools such as "pagers", these devices require the initiative of the elderly living alone, which is not conducive to emergency treatment. Heart rate refers to the number of times the heart beats per minute, which can reflect the working state of the heart and is an important physiological indicator of the human body. Therefore, it is very meaningful to implement real-time monitoring and alarming of heart rate for empty-nest elderly. [0003] According to whether it is in contact with the subject's body, heart rate measurement m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/024A61B5/11A61B5/00
CPCA61B5/02416A61B5/02438A61B5/02455A61B5/1112A61B5/681A61B5/6824A61B5/7207A61B5/7235A61B5/725A61B5/747A61B2503/08
Inventor 胡凯丽金杰
Owner TIANJIN UNIV
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