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Human body state monitoring system and method based on cardiopulmonary signal

A human body state and monitoring system technology, applied in the field of medical equipment, can solve problems such as the inconvenience of normal life, and achieve the effect of reducing psychological and physical burden

Inactive Publication Date: 2017-09-19
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Traditional contact detection uses electrodes or sensors to directly or indirectly contact organisms to detect physiological signals. Non-contact detection methods that provide a comfortable environment for guardians have become the focus of research

Method used

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  • Human body state monitoring system and method based on cardiopulmonary signal
  • Human body state monitoring system and method based on cardiopulmonary signal
  • Human body state monitoring system and method based on cardiopulmonary signal

Examples

Experimental program
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Embodiment 1

[0049] This embodiment provides a human body state monitoring system based on cardiopulmonary signals, including:

[0050] A measurement front-end module that generates an excitation magnetic field and changes the output frequency signal with the life activities of the cardiopulmonary region;

[0051] A signal processing module for amplifying, filtering and shaping the frequency signal output by the measurement front-end module;

[0052] A human body state monitoring module that counts the frequency signals output by the signal processing module and judges the state of the human body according to the frequency range of the signal;

[0053] The output end of the measurement front-end module is connected to the input end of the signal processing module, and the output end of the signal processing module is connected to the input end of the human body state monitoring module. The overall structure is as figure 1 shown. It also includes a power supply module, which is respectiv...

Embodiment 2

[0070] This embodiment provides a human body state monitoring system based on cardiopulmonary signals.

[0071] Based on the system provided in Embodiment 1, the measurement front-end module specifically includes a coupling coil sensor and an excitation circuit; the coupling coil sensor is connected to the excitation circuit, and the output end of the excitation circuit is connected to the input end of the signal processing module.

[0072] The excitation circuit is a high-frequency oscillation circuit. On the basis of the classic capacitor three-point Colpitts oscillator, Schottky diodes D1 and D2 are added to limit the output frequency range and improve the output waveform, and the COMS operational amplifier OPA354 is used to replace the Colpitts oscillator. Transistor, in order to reduce the power consumption of the circuit, increase the service time of the device, and increase the quality factor Q of the oscillating circuit at the same time, improve the circuit performance,...

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Abstract

The invention provides a human body state monitoring system and method based on a cardiopulmonary signal. The system comprises a measurement front-end module used for generating an exciting magnetic field and outputting a frequency signal along with change of life activity in a cardiopulmonary area, a signal processing module used for amplifying, filtering and shaping the frequency signal output by the measurement front-end module, and a human body state monitoring module used for counting the frequency signal output by the signal processing module and judging a human body state according to a signal frequency variation range. The system and method which are provided by the invention have the advantages that variation, caused by the life activity in the cardiopulmonary area, of the frequency signal can be monitored without enabling an electrode in the prior art to be in direct contact with human skin, so that psychological and physical burdens of a wearer are reduced; and the variation of the frequency signal in the cardiopulmonary area is utilized for realizing human body state monitoring, real-time detection can be carried out without influencing psychological and physical discomforts of a human body, the current state of the human body is judged according to a frequency signal variation range, and thus the discomforts of the wearer can be found in time.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a human body state monitoring system and method based on cardiopulmonary signals. Background technique [0002] With the development of modern medicine, people's attention to their own health is also increasing. According to the latest research, the mortality rate caused by cardiovascular diseases and respiratory diseases is about 20%, especially in the case of increasingly serious environmental problems caused by smog, the incidence of related cardiopulmonary diseases is also increasing, so in It is very necessary to detect people's heart and lung signals in daily life. As such chronic diseases are raging and deriving among young and middle-aged people, the model that focuses on treatment and centers on hospitals is changing to a model that focuses on prevention and centers on community medical care. In this way, monitoring equipment that can realize real-t...

Claims

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Application Information

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IPC IPC(8): A61B5/053
CPCA61B5/053A61B5/72A61B5/7225
Inventor 杨丹徐彬王凯阳王旭乔红玉周野师小燕
Owner NORTHEASTERN UNIV
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