Diaphragm motion state monitoring device and breathing health assessment method

Abstract

The invention discloses a diaphragm motion state monitoring device and a breathing health assessment method. The device comprises a wearable equipment body, a pair of flexible pressure sensors, a flexible myoelectricity sensor and a main control unit, the wearable equipment body is rectangular, the pair of flexible pressure sensors are arranged on the upper portion and the lower portion of the wearable equipment body, the flexible myoelectricity sensor is arranged between the pair of flexible pressure sensors, and the main control unit is arranged outside the wearable equipment body; the pair of flexible pressure sensors is used for detecting a thoracic cavity pressure signal and an abdominal cavity pressure signal; the flexible myoelectricity sensor is used for detecting diaphragm myoelectricity signals; and the main control unit is used for performing index calculation based on the processed chest pressure signal, abdominal pressure signal and diaphragm electromyographic signal to obtain a plurality of respiratory health indexes, and sending the indexes to the mobile terminal for comparison so as to realize respiratory health assessment. According to the invention, real-time monitoring and evaluation of the breathing health state of the user can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent wearable devices, and in particular to a diaphragm movement state monitoring device and a respiratory health assessment method. Background Art

[0002] In recent years, people are paying more and more attention to the health of respiratory function. The diaphragm is an important structure for maintaining respiratory function and the main driving muscle for human breathing, contributing 70% of the normal breathing process. Therefore, diaphragm function examination is an important part of respiratory function assessment.

[0003] Currently, diaphragm function is mainly tested through two methods: diaphragm transverse pressure gradient and diaphragm electromyography.

[0004] The commonly used method for detecting the trans-diaphragm pressure difference is the esophageal and intragastric catheter method, which is to insert a catheter equipped with a pressure sensor into the esophagus to measure the intrathoracic pressure, i.e., the esophageal pressure, and insert another catheter equipped with a pressure sensor into the stomach to measure the intra-abdominal pressure, i.e., the intragastric pressure. The esophageal pressure and the intragastric pressure are measured synchronously during the respiratory cycle, and the trans-diaphragm pressure difference is obtained by subtracting the intragastric pressure from the esophageal pressure. This method has high requirements for the professional intubation technology and instruments and is difficult for ordinary people to accept.

[0005] The commonly used method for detecting diaphragm electromyography is the percutaneous puncture electrode method, in which a fine needle electrode (coaxial needle electrode or monopolar needle electrode) is inserted into the diaphragm through the skin, as close to the diaphragm as possible to record the electrical activity of the diaphragm. This method is only suitable for short-term and accurate electromyography detection, is somewhat invasive, and may cause discomfort or pain.

[0006] Therefore, there is a need for a wearable diaphragm movement status monitoring device that has excellent bending and stretching properties, is wireless, painless, has a wide range of applications, and can be used in most life conditions to meet the needs of real-time monitoring of respiratory health. Summary of the invention

[0007] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present invention is to provide a diaphragm movement state monitoring device, which can enable users to monitor their own respiratory health status in real time, assist users to obtain their own respiratory health information at any time, and allow users to pay more attention to their own health.

[0008] A second object of the present invention is to provide a respiratory health assessment method.

[0009] A third object of the present invention is to provide a computer-readable storage medium.

[0010] A fourth object of the present invention is to provide a respiratory health assessment device.

[0011] To achieve the above object, the present invention is implemented through the following technical solutions:

[0012] A diaphragm movement state monitoring device comprises a wearable equipment body, a pair of flexible pressure sensors, a flexible electromyographic sensor and a main control unit; the wearable equipment body is rectangular, the pair of flexible pressure sensors are arranged at the upper and lower positions of the wearable equipment body, the flexible electromyographic sensor is arranged between the pair of flexible pressure sensors, and the main control unit is arranged outside the wearable equipment body; the pair of flexible pressure sensors are used to detect chest pressure signals and abdominal pressure signals; the flexible electromyographic sensor is used to detect diaphragm electromyographic signals; the main control unit is used to calculate indicators based on processed chest pressure signals, abdominal pressure signals and diaphragm electromyographic signals to obtain multiple respiratory health indicators, and send the multiple respiratory health indicators to a mobile terminal for comparison to achieve respiratory health assessment.

[0013] Preferably, the diaphragm movement state monitoring device further comprises a power module, a rectifier module, a storage module and a communication module arranged on the wearable equipment body;

[0014] The rectifier module is used to amplify, rectify and filter the chest pressure signal, abdominal pressure signal and diaphragm electromyographic signal; the storage module is used to store the signal processed by the rectifier module; the communication module is used to send the signal processed by the rectifier module to the main control unit; the power module is used to supply power to each module arranged on the wearable equipment body.

[0015] Preferably, the diaphragm movement state monitoring device also includes a Velcro disposed on the wearable equipment body, and the Velcro is used to facilitate wearing and fixing the wearable equipment body.

[0016] Preferably, the specific arrangement positions of the pair of flexible pressure sensors and the flexible electromyographic sensors meet the following conditions:

[0017] When the wearable equipment body is worn on the diaphragm, the pair of flexible pressure sensors are respectively attached to the skin surface above and below the diaphragm; the flexible electromyographic sensor is attached to the seventh to tenth intercostal spaces and close to the projection area of ​​the diaphragm on the body surface.

[0018] To achieve the above object, the second aspect of the present invention provides a respiratory health assessment method, comprising:

[0019] Wear the wearable device body in the diaphragm movement state monitoring device described above on the diaphragm position and fix it with Velcro;

[0020] A pair of flexible pressure sensors are used to detect chest pressure signals and abdominal pressure signals respectively, and a flexible electromyographic sensor is used to detect diaphragm electromyographic signals;

[0021] Amplify, rectify and filter the chest pressure signal, abdominal pressure signal and diaphragm electromyography signal, and send the processed signals to the main control unit;

[0022] The main control unit calculates indicators based on the processed chest pressure signal, abdominal pressure signal and diaphragm electromyography signal to obtain multiple respiratory health indicators;

[0023] The main control unit sends the multiple respiratory health indicators to the mobile terminal so that the mobile terminal compares the multiple respiratory health indicators with the corresponding standard respiratory health indicators to obtain the respiratory health assessment results.

[0024] Preferably, the multiple respiratory health indicators include diaphragm trans-pressure difference, integrated electromyographic value, center frequency of diaphragm electromyogram spectrum and high-low frequency ratio.

[0025] Preferably, the high frequency range of the diaphragm electromyogram spectrum is 150-256 Hz, and the low frequency range of the diaphragm electromyogram spectrum is 25-45 Hz.

[0026] Preferably, multiple respiratory health indicators are compared with corresponding standard respiratory health indicators to obtain respiratory health assessment results, including:

[0027] If all respiratory health indicators are within the corresponding standard respiratory health indicator range, human breathing is in a healthy state;

[0028] If the central frequency and high-low frequency ratio of the diaphragm electromyography spectrum both drop below 50% of the corresponding standard respiratory health index, it is determined to be diaphragm fatigue;

[0029] If the diaphragm trans-pressure difference value increases by more than 15% based on the standard diaphragm trans-pressure difference value, and the integrated electromyographic value decreases by more than 20% based on the standard integrated electromyographic value, it is determined that there is a respiratory disorder.

[0030] To achieve the above-mentioned object, the third aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the above-mentioned respiratory health assessment method is implemented.

[0031] To achieve the above-mentioned objectives, the fourth aspect of the present invention provides a respiratory health assessment device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the above-mentioned respiratory health assessment method is implemented.

[0032] The present invention has at least the following technical effects:

[0033] (1) The present invention uses a flexible electromyographic sensor and a flexible pressure sensor fixed on the wearable device body to identify and capture the pressure signal and electromyographic signal generated during breathing, thereby realizing painless monitoring of diaphragmatic transdiaphragmatic pressure and diaphragmatic electromyography.

[0034] (2) The present invention adopts wireless transmission, which allows users to monitor their respiratory health status in more conditions, and gets rid of the limitation that traditional fixed monitoring of respiratory status requires users to be in a resting state.

[0035] (3) The present invention has a convenient operation process and a simple and convenient measurement process. It can be widely applied to different types of users and gets rid of the privacy and security issues brought by public medical equipment, thus meeting the needs of daily monitoring of human respiratory health status.

[0036] (4) The present invention monitors the diaphragm movement state by identifying and capturing two signals, namely, diaphragm transdiaphragmatic pressure and diaphragm electromyography. The diaphragm is an important structure for maintaining respiratory function and is also the main driving muscle for human breathing, contributing 70% of the normal breathing process. Therefore, diaphragm transdiaphragmatic pressure and diaphragm electromyography directly reflect the healthy state of human breathing. By monitoring the two signals, the judgment of the healthy state of breathing is more accurate, and the randomness and contingency of judging the healthy state of human breathing by monitoring a single signal are eliminated.

[0037] (5) The present invention evaluates the healthy state of human breathing through the center frequency and high / low frequency index of the diaphragm electromyogram. First, the functional state of the diaphragm can be continuously evaluated without the need for invasive operations. Secondly, the center frequency and high / low frequency index provide an objective quantitative means, wherein the decrease in the center frequency can reflect muscle fatigue, and the change in the high / low frequency ratio can reflect the characteristics of neuromuscular conduction. The present invention evaluates the healthy state of human breathing through the integrated electromyographic value index, wherein the integrated electromyographic value calculation selects the diaphragm electromyographic waveform of the entire respiratory cycle, that is, a section of the diaphragm electromyographic waveform from the beginning of inspiration to the end of the respiratory cycle. Regardless of the respiratory conditions, the periodicity of the diaphragm electromyography is clearly visible, and there is synchronous flow monitoring to determine the respiratory cycle, so the selected waveform sample is less subjective than the waveform sample selected by calculating the root mean square. In addition, the calculation method of the integrated electromyographic value is the integration of the absolute value of the diaphragm electromyographic waveform in the entire respiratory cycle, which incorporates time information and contains information about the change of inhalation effort over time in the entire respiratory cycle, which can more comprehensively reflect the respiratory center.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the structure of the diaphragm movement state monitoring device according to an embodiment of the present invention.

[0040] Figure 2 This is a schematic diagram of a device worn in an embodiment of the present invention.

[0041] Figure 3 4 is a circuit structure block diagram of a diaphragm movement state monitoring device according to an embodiment of the present invention.

[0042] Figure 4 Schematic diagram of communication between a diaphragm movement state monitoring device and a mobile terminal according to an embodiment of the present invention.

[0043] Figure 5 Flow chart of a respiratory health assessment method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The present embodiment is described in detail below, and examples of the embodiment are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0045] The diaphragm movement state monitoring device and respiratory health assessment method of this embodiment are described below with reference to the accompanying drawings.

[0046] Figure 1 FIG. 2 is a schematic diagram of the structure of a diaphragm movement state monitoring device according to an embodiment of the present invention. Figure 1 As shown, the diaphragm movement state monitoring device includes a wearable equipment body 1, a pair of flexible pressure sensors 2, a flexible electromyographic sensor 3 and a main control unit; wherein, the wearable equipment body 1 is rectangular, a pair of flexible pressure sensors 2 are arranged at the upper and lower positions of the wearable equipment body 1, the flexible electromyographic sensor 3 is arranged between the pair of flexible pressure sensors 2, and the main control unit is arranged outside the wearable equipment body 1; the pair of flexible pressure sensors 2 are used to detect chest pressure signals and abdominal pressure signals; the flexible electromyographic sensor 3 is used to detect diaphragm electromyographic signals; the main control unit is used to calculate indicators based on the processed chest pressure signals, abdominal pressure signals and diaphragm electromyographic signals, obtain multiple respiratory health indicators, and send these indicators to the mobile terminal for comparison, thereby realizing respiratory health assessment.

[0047] It should be noted that the diaphragm movement state monitoring device also includes a power module 4, a rectifier module 5, a storage module 6, a communication module 7 and a Velcro 8 arranged on the wearable equipment body 1. Among them, the rectifier module 5 is used to amplify, rectify and filter the chest pressure signal, the abdominal pressure signal and the diaphragm electromyographic signal; the storage module 6 is used to store the signal processed by the rectifier module 5; the communication module 7 is used to send the signal processed by the rectifier module 5 to the main control unit; the power module 4 is used to supply power to each module arranged on the wearable equipment body 1; the Velcro 8 is used to facilitate the wearing and fixing of the wearable equipment body 1.

[0048] In this embodiment, the wearable equipment body 1 is made of highly flexible and elastic fabric, elastic conductive material and organic polymer material, which can better adapt to the body shape characteristics of different applicable people, and help the sensor to accurately identify and capture small deformations and monitor dynamic electromyographic signals in real time. The flexible pressure sensor 2 is composed of skin-friendly or highly flexible and elastic fabric, functional materials and organic polymer materials, which can accurately identify and capture small deformations, thereby converting the pressure difference between the chest and abdomen when the human respiratory diaphragm contracts into changes in the electrical data of the flexible pressure sensor 2. The flexible electromyographic sensor 3 can monitor the electromyographic signals generated by the human diaphragm in different motion states. In addition, the Velcro 8 combines ergonomic principles to ensure the fitting pressure.

[0049] In this embodiment, the wearable diaphragm movement state monitoring device is a soft and comfortable wearable product developed for diaphragm movement state monitoring. The whole device is made of highly flexible fabric, elastic conductive material and organic polymer material. It can accurately identify and capture tiny deformations and detect dynamic electromyographic signals in real time. It can transform the mechanical vibration of the chest cavity during human breathing into changes in the sensor's electrical data and visualize the real-time diaphragm movement electromyographic signals of the human body. The device collects and processes the pressure data and electromyographic data collected by the sensor, thereby realizing real-time monitoring of respiratory health, improving the convenience and real-time nature of respiratory detection for different groups, and combining ergonomic principles to design an adjustable fixed mode to ensure fitting pressure.

[0050] The respiratory state monitoring principle of the diaphragm movement state monitoring device of this embodiment is as follows:

[0051] like Figure 2 As shown in the figure, when the diaphragm movement state is detected, the device of the present invention is worn between the chest and abdomen, that is, at the diaphragm, so that the flexible pressure sensor 2 is respectively in close contact with the skin surface above and below the diaphragm; the flexible electromyographic sensor 3 is in close contact with the seventh to tenth intercostal spaces close to the projection area of ​​the diaphragm on the body surface, and is used to monitor the chest and abdominal pressure signals and diaphragm electromyographic signals at the diaphragm position. The front and back effects after wearing are as follows Figure 2 shown.

[0052] like Figure 3 , Figure 4 As shown, when the human body breathes, the diaphragm contracts and generates a pressure difference between the upper and lower sides of the diaphragm, i.e., the chest and abdomen. The flexible pressure sensor 2 arranged on the chest and abdomen will monitor two pressure signals. At the same time, when the human body breathes, the diaphragm movement will generate diaphragm electromyographic signals, and the flexible electromyographic sensor 3 fixed on the wearable equipment body 1 will monitor the changing diaphragm electromyographic signals. The rectifier module 5 collects, filters and amplifies the pressure signals and diaphragm electromyographic signals monitored by the flexible pressure sensor 2 and the flexible electromyographic sensor 3, respectively, and stores them in the pressure signal storage and electromyographic signal storage in the storage module 6, and transmits them to the main control unit through the 2G / 3G / 4G / 5G network module in the communication module 7. The processor of the main control unit processes the signal data from the communication module 7 to generate the diaphragm trans-pressure difference and diaphragm electromyogram, and finally sends them to mobile terminals such as mobile phones and other mobile devices.

[0053] Figure 5 FIG. 4 is a flow chart of a respiratory health assessment method according to an embodiment of the present invention. Figure 5 As shown, the method includes:

[0054] Step S1: Wear the wearable equipment body in the diaphragm movement state monitoring device on the diaphragm position and fix it with Velcro.

[0055] Step S2: using a pair of flexible pressure sensors to detect chest cavity pressure signals and abdominal cavity pressure signals respectively, and using a flexible electromyographic sensor to detect diaphragm electromyographic signals.

[0056] Step S3: amplify, rectify and filter the chest cavity pressure signal, abdominal cavity pressure signal and diaphragm electromyographic signal, and send the processed signals to the main control unit.

[0057] Step S4: The main control unit calculates indicators based on the processed chest pressure signal, abdominal pressure signal and diaphragm electromyography signal to obtain multiple respiratory health indicators.

[0058] Step S5: The main control unit sends the multiple respiratory health indicators to the mobile terminal, so that the mobile terminal compares the multiple respiratory health indicators with the corresponding standard respiratory health indicators to obtain a respiratory health assessment result.

[0059] In this embodiment, the entire wearable device can be worn in the middle of the chest and abdomen and fixed with Velcro to make the flexible electromyographic sensor and the flexible pressure sensor close to the skin surface.

[0060] Then, the flexible electromyographic sensor monitors the diaphragm electromyographic signal, and the flexible pressure sensor monitors the chest and abdominal pressure signals. The collection and analysis of the chest and abdominal pressure signals can directly reflect the health of the human respiratory muscles, and the corresponding respiratory indicators can be obtained by collecting and analyzing the diaphragm electromyographic signal. The rectifier module amplifies, rectifies, and filters the diaphragm electromyographic signal and the chest and abdominal pressure signal. The storage module stores the processed diaphragm electromyographic signal and the chest and abdominal pressure signal and transmits them to the main control unit through the communication module. The main control unit performs indicator calculations on the processed data.

[0061] Specifically, the trans-diaphragm pressure difference is calculated from the chest and abdominal pressure data; the diaphragm electromyogram is generated by processing the diaphragm electromyography signal data, and the diaphragm electromyography is used to calculate the integrated electromyography value, the center frequency of the diaphragm electromyography spectrum, and the high frequency / low frequency, that is, the high-low frequency ratio.

[0062] Furthermore, the respiratory health of the human body is judged. After a period of time, the wearable device repeats steps S2, S3, and S4 to monitor the chest and abdominal pressure signals and diaphragm electromyographic signals of multiple respiratory cycles of the human body, and the main control unit calculates multiple groups of respiratory health indicators and uploads them to the mobile terminal.

[0063] Finally, the mobile terminal compares multiple groups of respiratory health indicators with corresponding standard respiratory health indicators to determine the respiratory health status of the human body.

[0064] The respiratory health assessment method of this embodiment is described in detail below.

[0065] Step 1: After the device is properly worn, the contraction of the human respiratory diaphragm will generate a pressure difference between the upper and lower sides of the diaphragm, i.e., the chest and abdomen. The flexible pressure sensors installed on the chest and abdomen will monitor two pressure signals. At the same time, the movement of the human respiratory diaphragm will generate diaphragm electromyographic signals, and the flexible electromyographic sensors fixed on the wearable device body will monitor the changing electromyographic signals.

[0066] Step 2, the monitored diaphragm electromyographic signals and chest and abdominal pressure signals are first amplified by the biological signal amplifier in the rectifier module and rectified by the full-waveform rectification method and the filtering circuit to reduce the ripple to obtain a stable signal, and then the amplified and stable signal is transmitted to the storage module for storage and aggregation, and finally the stored and aggregated signal data is transmitted to the communication module, which transmits the signal data wirelessly to the main control unit for calculation and processing.

[0067] Step 3: The main control unit obtains the chest and abdominal pressure signal data through the intrathoracic pressure (P es ) minus the intraperitoneal pressure (P ga) to obtain the diaphragm transverse pressure difference (Pdi). The obtained diaphragm electromyography data is used to generate the diaphragm electromyogram. The diaphragm electromyography from the beginning of inspiration to the end of inspiration is selected by software, and the integral of the surface of the diaphragm electromyography amplitude during the inspiration time is continuously calculated by the corresponding calculation formula to obtain the integrated electromyography value, that is:

[0068]

[0069] Among them, t1 and t2 are the starting and ending time of the integration, representing the time period of a respiratory cycle, iEMGdi represents the integrated electromyographic value, and EMGdi(t) represents the diaphragm electromyographic signal at time t. The center frequency (F) of the diaphragm electromyogram spectrum is calculated by taking the average value of the integrated electromyographic values ​​of 8 consecutive and uniform respiratory cycles. c ), high frequency / low frequency (H / L), that is:

[0070]

[0071] Wherein, f is the frequency, P(f) is the power spectrum and the high frequency range is 150-256 Hz and the low frequency range is 25-45 Hz. Finally, the main control unit uploads these calculated data to the mobile terminal for comparison.

[0072] Step 4, the mobile terminal compares the obtained diaphragm trans-pressure difference, integrated electromyographic value, center frequency and high frequency / low frequency with the standard respiratory health index, wherein the diaphragm trans-pressure difference of standard respiratory health should be between 5 and 20 cmH2O, the integrated electromyographic value of standard respiratory health is 18.50 ± 2.50 μV·s, the center frequency of standard respiratory health is 80 to 130 Hz, and the high frequency / low frequency is 2.40 ± 1.40. The human respiratory health status is evaluated by comparing health indicators. If all indicators are within the standard indicator range, the human breathing is in a healthy state; if the center frequency and high frequency / low frequency values ​​drop to less than 50% of the healthy population, it can be identified as diaphragm fatigue; if the diaphragm trans-pressure difference value increases by more than 15% based on the standard diaphragm trans-pressure difference value, and the integrated electromyographic value decreases by more than 20% based on the standard integrated electromyographic value, it is determined that there is a respiratory disorder. Finally, the mobile terminal generates a respiratory health report.

[0073] To sum up, the diaphragm movement state monitoring device provided by the present invention adopts highly flexible and elastic fabric as a whole to ensure the conformal contact between the flexible sensor and the human body, and can accurately monitor the diaphragm electromyographic signals and the pressure difference between the thoracic and ventral sides of the diaphragm during diaphragm movement in real time, and based on the diaphragm electromyographic signals and the pressure difference between the thoracic and ventral sides of the diaphragm, it can realize real-time monitoring of the visual respiratory state and realize visual respiratory health assessment.

[0074] Furthermore, the present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned respiratory health assessment method is implemented.

[0075] Furthermore, the present invention also provides a respiratory health assessment device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the above-mentioned respiratory health assessment method is implemented.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0077] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A diaphragm movement state monitoring device, characterized in that: It includes a wearable equipment body, a pair of flexible pressure sensors, a flexible electromyographic sensor and a main control unit; the wearable equipment body is rectangular, the pair of flexible pressure sensors are arranged at the upper and lower positions of the wearable equipment body, the flexible electromyographic sensor is arranged between the pair of flexible pressure sensors, and the main control unit is arranged outside the wearable equipment body; the pair of flexible pressure sensors are used to detect chest pressure signals and abdominal pressure signals; the flexible electromyographic sensor is used to detect diaphragm electromyographic signals; the main control unit is used to calculate indicators based on the processed chest pressure signals, abdominal pressure signals and diaphragm electromyographic signals to obtain multiple respiratory health indicators, and send the multiple respiratory health indicators to a mobile terminal for comparison to achieve respiratory health assessment.

2. The diaphragm movement state monitoring device according to claim 1, characterized in that: It also includes a power module, a rectifier module, a storage module and a communication module arranged on the wearable equipment body; The rectifier module is used to amplify, rectify and filter the chest pressure signal, abdominal pressure signal and diaphragm electromyographic signal; the storage module is used to store the signal processed by the rectifier module; The communication module is used to send the signal processed by the rectifier module to the main control unit; the power module is used to supply power to each module arranged on the wearable equipment body.

3. The diaphragm movement state monitoring device according to claim 1, characterized in that: It also includes Velcro arranged on the wearable equipment body, and the Velcro is used to facilitate wearing and fixing the wearable equipment body.

4. The diaphragm movement state monitoring device according to claim 1, characterized in that: The specific arrangement positions of the pair of flexible pressure sensors and flexible electromyographic sensors meet the following conditions: When the wearable equipment body is worn on the diaphragm, the pair of flexible pressure sensors are respectively attached to the skin surface above and below the diaphragm; the flexible electromyographic sensor is attached to the seventh to tenth intercostal spaces and close to the projection area of ​​the diaphragm on the body surface.

5. A respiratory health assessment method, characterized in that: include: Wearing the wearable equipment body in the diaphragm movement state monitoring device according to any one of claims 1 to 4 at the diaphragm position and fixing it with Velcro; A pair of flexible pressure sensors are used to detect chest pressure signals and abdominal pressure signals respectively, and a flexible electromyographic sensor is used to detect diaphragm electromyographic signals; Amplify, rectify and filter the chest pressure signal, abdominal pressure signal and diaphragm electromyography signal, and send the processed signals to the main control unit; The main control unit calculates indicators based on the processed chest pressure signal, abdominal pressure signal and diaphragm electromyography signal to obtain multiple respiratory health indicators; The main control unit sends the multiple respiratory health indicators to the mobile terminal so that the mobile terminal compares the multiple respiratory health indicators with the corresponding standard respiratory health indicators to obtain the respiratory health assessment results.

6. The respiratory health assessment method according to claim 5, characterized in that: Multiple respiratory health indicators include diaphragmatic transmuscular pressure gradient, integrated electromyographic value, central frequency of diaphragmatic electromyographic spectrum, and high-low frequency ratio.

7. The respiratory health assessment method according to claim 6, characterized in that: The high frequency range of the diaphragm electromyography spectrum is 150-256 Hz, and the low frequency range of the diaphragm electromyography spectrum is 25-45 Hz.

8. The respiratory health assessment method according to claim 5, characterized in that: Compare multiple respiratory health indicators with corresponding standard respiratory health indicators to obtain respiratory health assessment results, including: If all respiratory health indicators are within the corresponding standard respiratory health indicator range, human breathing is in a healthy state; If the central frequency and high-low frequency ratio of the diaphragm electromyography spectrum both drop below 50% of the corresponding standard respiratory health index, it is determined to be diaphragm fatigue; If the diaphragm trans-pressure difference value increases by more than 15% based on the standard diaphragm trans-pressure difference value, and the integrated electromyographic value decreases by more than 20% based on the standard integrated electromyographic value, it is determined that there is a respiratory disorder.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the respiratory health assessment method according to any one of claims 5 to 8 is implemented.

10. A respiratory health assessment device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the respiratory health assessment method as described in any one of claims 5-8 is implemented.

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