A respiratory pressure detection method, device and computer equipment

Abstract

The present application relates to the technical field of lung training, and particularly relates to a respiratory pressure detection method, device and computer equipment. The respiratory pressure detection method comprises the following steps: S1. simulating respiratory airflow; S2. training device load setting; S3. obtaining pressure feedback data; S4. obtaining a function formula of a respiratory weight / pressure curve; S5. obtaining a function formula of a respiratory flow rate / pressure curve; S6. respiratory pressure calculation; S7. respiratory capacity calculation; and S8. respiratory work calculation. The respiratory pressure detection device and the computer equipment are used to execute the respiratory pressure detection method. The respiratory pressure detection method establishes a function relationship between the respiratory weight / pressure curve and the respiratory flow rate / pressure curve. In the training process, the user can know the current respiratory pressure threshold and real-time respiratory pressure according to the weight of the weight and the respiratory flow rate, and can know the respiratory capacity and respiratory work generated in the training process, so as to guide the user to set a respiratory training plan in line with the health of the user's body.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lung training, and in particular to a respiratory pressure detection method, device and computer equipment. BACKGROUND

[0002] Vital capacity is the maximum ventilation of one breath, which can reflect the potential capacity of respiratory function in a certain sense. Compared with normal values, low vital capacity detection values indicate poor oxygen uptake and exhaust capacity of the body, and the oxygen supply in the human body is not sufficient, so some work of the body cannot be normal. Exercising the lungs of users can improve the respiratory capacity of users. Like swimmers and marathon runners, training can improve oxygen intake and the cardiovascular system.

[0003] Respiratory pressure threshold resistance training is a respiratory activity that requires sufficient respiratory pressure to be generated by the subject during breathing. Studies have shown that such training devices can improve the respiratory muscle strength of healthy adults and patients with chronic obstructive pulmonary disease and multiple sclerosis, and improve their whole-body endurance performance.

[0004] According to one patent of US10722748B1, a method and device for training the muscles of the lungs, diaphragm and surrounding areas are disclosed, which include at least one weight, a hollow cylinder having a bottom and a top, wherein the weight is located inside the hollow cylinder, and a tube, wherein the distal end of the tube is connected to the bottom of the hollow cylinder, and the user exhales into the proximal end of the tube. When the air exhaled by the user flows into the hollow cylinder through the tube, it will exert pressure on the weight. When the user increases the amount of air inhaled into the tube, the force exerted on the weight will increase. When the air force in the cylinder exceeds the weight of the weight, the weight will move radially along the cylinder.

[0005] In the above technical solution, the training difficulty is adjusted by adjusting the weight of the weight, but the respiratory pressure of the user during the respiratory training cannot be quantified, the training record and the training effect feedback cannot be performed, and there is a certain limitation. SUMMARY

[0006] The present application provides a respiratory pressure detection method, device and computer equipment, which aims to solve the problems of the existing respiratory training method, such as the inability to quantify respiratory pressure and respiratory work, and the inability to record and feedback training effect.

[0007] The present application provides a respiratory pressure detection method, which comprises the following steps:

[0008] S1. Simulate respiratory airflow: set a plurality of respiratory simulation modes of flow rates by a control unit of a respiratory detection device, and control a dynamic air supply unit in the respiratory detection device to generate a plurality of detection airflows matched with the respiratory simulation modes;

[0009] S2. Training device load setting: Put at least one breathing weight into the breathing chamber of the breathing training device, and obtain a breathing weight set;

[0010] S3. Obtain pressure feedback data: Connect the air volume interface of the dynamic air supply unit of the breathing detection device to the mouthpiece of the breathing training device to be detected, and blow or suck the set detection airflow into the breathing training device to be detected through the dynamic air supply unit of the breathing detection device to trigger the air pressure sensor in the breathing detection device;

[0011] S4. Obtain the function formula of the breathing weight / pressure curve: Record the weight set of the breathing weight in the breathing chamber under each detection airflow, and the breathing pressure signal set corresponding to the air pressure sensor, and process the breathing weight set and the breathing pressure signal set to form the function formula of the breathing weight / pressure curve;

[0012] S5. Obtain the function formula of the breathing flow rate / pressure curve: Record the breathing flow rate set under each detection airflow, and the breathing pressure signal set corresponding to the air pressure sensor, and process the breathing flow rate set and the breathing pressure signal set to form the function formula of the breathing flow rate / pressure curve;

[0013] S6. Breathing pressure calculation: According to the function formula of the breathing weight / pressure curve obtained in step S4, the corresponding breathing pressure threshold is obtained through the breathing weight placed by the user during use; According to the function formula of the breathing flow rate / pressure curve obtained in step S5, the corresponding real-time breathing pressure is obtained through the monitoring of the breathing flow rate of the user during use;

[0014] S7. Breathing capacity calculation: The breathing capacity is obtained by multiplying the breathing flow rate and the breathing time;

[0015] S8. Breathing work calculation: The breathing work is obtained by multiplying the breathing pressure and the breathing capacity.

[0016] As a further improvement of the present application, in step S4, the process of data processing of the breathing weight set and the breathing pressure signal set includes:

[0017] S41. Determine the size and number of the breathing weight, and obtain the set of breathing weight; The weight of the breathing weight is calculated by the material, size and number of the breathing weight, and the calculation formula includes the product of the material density p, volume V, size coefficient k and number q, that is,

[0018] M = pV x k x q = pπr 2 h x k x q

[0019] In the formula, r is the radius of the breathing weight, and h is the height of the breathing weight.

[0020] S42. Determine the set of breathing pressures corresponding to the weight of the breathing weight under the preset condition, the preset condition of the weight of the breathing weight is that when the breathing detection device inhales the air of the blow nozzle, the positive force acting on the breathing weight will increase, when the positive pressure air force acting on the breathing weight exceeds the weight of the breathing weight in the breathing chamber, the breathing weight will move along the height of the breathing chamber; when the positive pressure air force in the breathing chamber is equal to the weight of the breathing weight, the breathing weight will be suspended in the breathing chamber, at this time, the pressure detected by the air pressure sensor of the breathing detection device is the breathing pressure corresponding to the current weight of the breathing weight;

[0021] S43. Determine the corresponding breathing pressure data value in the set of breathing pressures as the ordinate, determine the corresponding breathing weight in the set of breathing weights as the abscissa, and perform fitting processing on the obtained breathing weight / pressure curve coordinates to obtain the function information of the breathing weight / pressure curve.

[0022] As a further improvement of the present application, in step S5, the process of data processing of the set of breathing flow rates and the set of breathing pressure signals includes:

[0023] S51. Place at least one breathing weight in the breathing chamber, determine the breathing flow rate set by the breathing detection device, obtain the set of breathing flow rates under different weights of the breathing weight, and record the set of breathing pressures corresponding to different breathing flow rates in the set of breathing flow rates detected by the air pressure sensor of the breathing detection device;

[0024] S52. Determine the corresponding breathing pressure data value in the set of breathing pressures as the ordinate, determine the corresponding breathing flow rate in the set of breathing flow rates as the abscissa, and perform fitting processing on the obtained breathing flow rate / pressure curve coordinates to obtain the function information of the breathing flow rate / pressure curve.

[0025] As a further improvement of the present application, in step S6, the calculation of the breathing pressure includes the breathing pressure threshold and the real-time breathing pressure:

[0026] S61. Calculation of the breathing pressure threshold: obtain the weight of the breathing weight through the specifications and the number of the breathing weights placed by the user during use, and substitute it into the function formula of the breathing weight / pressure curve in S4 to obtain the corresponding breathing pressure, at this time, the breathing pressure is defined as the breathing pressure threshold of the current weight of the breathing weight;

[0027] S62. Calculation of the real-time breathing pressure: obtain the weight of the breathing weight by observing the specifications and the number of the breathing weights used by the user, monitor the breathing flow rate of the user during the breathing training under the current weight of the breathing weight, and obtain the real-time breathing pressure according to the function formula of the breathing flow rate / pressure curve in S5.

[0028] As a further improvement of the present application, the calculation of the respiratory volume in step S7 includes:

[0029] The respiratory volume refers to the volume of gas inhaled or exhaled by the user during each training process, denoted by V, which is usually determined by integrating the respiratory flow rate over time as follows:

[0030] V = ∫flow(t) × dt

[0031] where flow is the flow rate in l / min and t is the time in min.

[0032] Specific calculation: In a unit time dt, the respiratory flow rate flow(t) collected is multiplied by the unit time dt to obtain the respiratory volume dV. In a respiratory time T, the respiratory volume dV is integrated over the respiratory time T to obtain the total respiratory volume.

[0033] As a further improvement of the present application, the calculation of the respiratory work in step S8 includes:

[0034] WOB = ∫P(t) × dV = ∫P(t) × flow(t) dt

[0035] where WOB is the respiratory work, usually expressed in joules per liter of ventilation (J / L), P represents the unit pressure, and V represents the respiratory volume.

[0036] Specific calculation: In a unit time dt, the respiratory flow rate flow(t) collected is substituted into the respiratory flow rate / pressure curve information set to obtain the corresponding respiratory pressure P(t). The respiratory flow rate flow(t) is multiplied by the unit time dt to obtain the respiratory volume dV. In a respiratory time T, the product of the respiratory pressure P(t) and the respiratory volume dV is integrated over the respiratory time T to obtain the total respiratory work.

[0037] The present application provides a respiratory pressure detection device for performing a respiratory pressure detection method, comprising a respiratory trainer, the respiratory trainer comprising a breathing chamber, a breathing weight, a mouthpiece, and an air guide tube. At least one breathing weight is placed in the breathing chamber, and the mouthpiece is connected to the breathing chamber through the air guide tube.

[0038] The present application provides a computer device for respiratory pressure detection, comprising a respiratory detection device, a memory, a processor, and a computer program stored in the memory and running on the processor. The respiratory detection device comprises a control unit for setting the respiratory flow rate, a dynamic air supply unit for generating a detection air flow, and an air pressure sensor for detecting the respiratory pressure signal. The processor is connected to and controls the respiratory detection device. The processor executes the computer program to perform the respiratory pressure detection method.

[0039] The beneficial effect of the present application is that the respiratory weight / pressure curve and the respiratory flow rate / pressure curve are functionally related by the respiratory pressure detection method, and the user can know the current respiratory pressure threshold and real-time respiratory pressure during the training process according to the weight of the weight and the respiratory flow rate, as well as the respiratory capacity and respiratory work generated during the training process, which can guide the user to set a respiratory training plan that meets the user's physical health, and can digitally manage the results of each training, thereby improving the effectiveness and safety of the user's respiratory training. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a flowchart of the respiratory pressure detection method in the present application;

[0041] Figure 2 is a structural diagram of the respiratory pressure detection device in the present application;

[0042] Figure 3 is a schematic diagram of the internal structure of the respiratory pressure detection computer device in the present application. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples.

[0044] The present application proposes a respiratory pressure detection method, device and computer equipment, so that the user can quantify the respiratory pressure by using the respiratory weight 3, and also can realize the quantification and feedback of the training effect.

[0045] As shown in Figure 1 the respiratory pressure detection method of the present application comprises the following steps:

[0046] S1. Simulate respiratory airflow: set a plurality of respiratory simulation modes of flow rates by the control unit of the respiratory detection device, and control the dynamic air supply unit in the respiratory detection device to generate a plurality of detection airflows matched with the respiratory simulation modes.

[0047] S2. Training device load setting: put at least one respiratory weight 3 into the respiratory chamber 2 of the respiratory training device 1, and obtain a set of weights of the respiratory weights 3.

[0048] S3. Obtain pressure feedback data: connect the air volume interface of the dynamic air supply unit of the respiratory detection device to the mouthpiece 4 of the respiratory training device 1 to be detected, and blow or extract the set detection airflow into the respiratory training device 1 to be detected by the dynamic air supply unit of the respiratory detection device, so as to trigger the air pressure sensor in the respiratory detection device.

[0049] S4. Obtain the function formula of the weight / pressure curve of the breathing weight 3: record the weight set of the breathing weight 3 in the breathing chamber 2 under each detected air flow and the breathing pressure signal set corresponding to the air pressure sensor, and perform data processing on the weight set of the breathing weight 3 and the breathing pressure signal set to form the function formula of the weight / pressure curve of the breathing weight 3.

[0050] In step S4, the data processing on the weight set of the breathing weight 3 and the breathing pressure signal set includes:

[0051] S41. Determine the size and quantity of the breathing weight to obtain the weight set of the breathing weight; the weight of the breathing weight is calculated according to the material, size and quantity of the breathing weight, and the calculation formula includes the product of the material density p, volume V, size coefficient k and quantity q. The weight formula is the product of the material density and the volume; the breathing weight is designed as a cylinder, and the volume formula of the cylinder is the product of the base area and the height:

[0052] m = p x V = p x s x h = p x p x r 2 x h

[0053] In the formula, m is the weight, unit g; p is the material density, unit g / cm 3 ; V is the volume, density m 3 ; s is the base area of the breathing weight, unit cm 2 ; r is the radius of the breathing weight, unit cm; h is the height of the breathing weight, unit cm.

[0054] The weight of the standard breathing weight is set as m0, and the weight of another size of breathing weight is m1, and the weight ratio of the standard breathing weight is defined as the size coefficient, and the formula is Therefore, the total weight of the breathing weight is equal to the product of the weight of the standard breathing weight, the size coefficient and the quantity, that is:

[0055] M = m x k x q

[0056] In the formula, M is the total weight of the breathing weight, unit g; k is the size coefficient; q is the quantity.

[0057] For example, the material of the weight is 304 steel, and the density is 7.93 g / cm 3 ;

[0058] When a 3x4 cm size breathing weight 3 is put in, the weight is 7.93x3.14x1.5 2 x4x1x1 = 224.10 g;

[0059] When a 3x2 cm size breathing weight 3 is put in, the weight is 7.93x3.14x1.5 2 x4x0.5x1 = 112.05 g;

[0060] When a 3x4cm and a 3x2cm size breathing weight 3 is put in, its weight is 7.93x3.14x1.5 2 x4x(1+0.5)x1=336.15g.

[0061] S42. Determine the set of breathing pressures corresponding to the weight of the breathing weight 3 under the preset condition, the preset condition of the weight of the breathing weight 3 being: when the breathing detection device inhales the air of the blow nozzle 4, the positive force applied on the breathing weight 3 will increase, when the positive pressure air force acting on the breathing weight 3 in the breathing chamber 2 exceeds the weight of the breathing weight 3, the breathing weight 3 will move along the height of the breathing chamber 2; when the positive pressure air force in the breathing chamber 2 is equal to the weight of the breathing weight 3, the breathing weight 3 will be suspended in the breathing chamber 2, at this time, the pressure detected by the air pressure sensor of the breathing detection device is the breathing pressure corresponding to the current weight of the breathing weight 3;

[0062] S43. Determine the corresponding breathing pressure data value in the set of breathing pressures as the ordinate, determine the corresponding weight of the breathing weight 3 in the set of weights of the breathing weight 3 as the abscissa, and perform fitting processing on the obtained each breathing weight 3 / pressure curve coordinate to obtain the function information of the breathing weight 3 / pressure curve.

[0063] S5. Obtain the function formula of the breathing flow rate / pressure curve: record the set of breathing flow rates under each detected airflow, and the set of breathing pressure signals corresponding to the air pressure sensor, and perform data processing on the set of breathing flow rates and the set of breathing pressure signals to form the function formula of the breathing flow rate / pressure curve.

[0064] In step S5, the process of performing data processing on the set of breathing flow rates and the set of breathing pressure signals includes:

[0065] When the flow boundary wall does not change and the fluid in the pipe flows uniformly, the flow resistance is only the shear stress along the path, which is called the resistance along the path. The head loss caused by the resistance along the path is called the head loss along the path. The resistance loss along the path of the pipeline is uniformly distributed on the entire section of the flow pipe, and is proportional to the length L of the fluid flow section, and the symbol is h f When the flow boundary wall changes significantly, the flow velocity of the fluid in the pipe is distributed on the section where the flow changes, and the resistance concentrated at this time is called local resistance, and the head loss caused by this is called local head loss, and the symbol is h j Local resistance often occurs at pipe fittings such as pipe inlet, tee, reducer, valve and elbow.

[0066] When one or more breathing weights 3 are placed, the diameters of the breathing weights 3 are the same, so the local resistance caused by the change in diameter is the same, therefore, the resistance loss along the path hf Characterize the flow resistance corresponding to the weight of different breathing weights 3.

[0067] The calculation of the flow resistance usually adopts the Darcy-Weisbach formula:

[0068]

[0069] In the formula, l is the length of the pipe, the unit is m; d is the diameter of the pipe, the unit is m; u is the average flow velocity of the section, the unit is m / s; g is the acceleration of gravity, the unit is 9.8 m / s 2 ; λ is the flow resistance coefficient, which is generally determined by experiment, and can also be obtained by calculation through the empirical formula.

[0070] It can be seen from the formula that the flow resistance of the fluid is proportional to the length of the pipe; inversely proportional to the diameter of the pipe; proportional to the average flow velocity of the pipe.

[0071] The diameter of the breathing weight 3 is smaller than the inner diameter of the breathing chamber 2, and the distance between the diameter of the breathing weight 3 and the breathing chamber 2 is defined as the air gap. Therefore, when the air gap is constant, the heavier the breathing weight 3, the greater the breathing flow rate, and the greater the breathing resistance to be overcome, and the greater the breathing force required by the user.

[0072] S51. Place at least one breathing weight 3 in the breathing chamber 2, determine the breathing flow rate set by the breathing detection device, obtain a set of breathing flow rates under different weights of the breathing weight 3, and record a set of breathing pressures corresponding to different breathing flow rates in the set of breathing flow rates detected by the air pressure sensor of the breathing detection device;

[0073] S52. Determine the corresponding breathing pressure data value in the set of breathing pressures as the ordinate, determine the corresponding breathing flow rate in the set of breathing flow rates as the abscissa, and perform fitting processing on the obtained each breathing flow rate / pressure curve coordinate to obtain the function information of the breathing flow rate / pressure curve.

[0074] S6. Breathing pressure calculation: according to the function formula of the breathing weight 3 weight / breathing pressure curve obtained in step S4, the corresponding breathing pressure threshold is obtained through the weight of the breathing weight 3 placed by the user in the use process; according to the function formula of the breathing flow rate / breathing pressure curve obtained in step S5, the corresponding real-time breathing pressure is obtained through the monitoring of the breathing flow rate of the user in the use process.

[0075] In step S6, the calculation of the breathing pressure includes the breathing pressure threshold and the real-time breathing pressure:

[0076] S61. Calculation of respiratory pressure threshold: Respiratory pressure threshold resistance training is the respiratory activity that the subject needs to generate enough respiratory pressure to complete when breathing. Through the size and number of the breathing weight 3 placed by the user during use, the weight of the breathing weight 3 is obtained, and the corresponding respiratory pressure is obtained by substituting the function formula of the breathing weight 3 weight / respiratory pressure curve in S4, at which time the respiratory pressure is defined as the respiratory pressure threshold of the current breathing weight 3 weight;

[0077] S62. Real-time respiratory pressure calculation: By observing the size and number of the breathing weight 3 used by the user, the weight of the breathing weight 3 is obtained, the respiratory flow rate of the user during the current breathing weight 3 weight is monitored, and the real-time respiratory pressure is obtained according to the function formula of the respiratory flow rate / respiratory pressure curve in S5.

[0078] S7. Respiratory volume calculation: The respiratory flow rate is multiplied by the respiratory time to obtain the respiratory volume.

[0079] In step S7, the calculation process of the respiratory volume includes:

[0080] The respiratory volume refers to the volume of gas inhaled or exhaled by the user during each training process, denoted by V, which is usually measured by the integral method of respiratory flow rate and time as follows:

[0081] V = ∫flow(t) × dt

[0082] Where flow is the flow rate, in l / min; t is the time, in min;

[0083] Specific calculation: In a unit time dt, the respiratory flow rate flow(t) collected is multiplied by the unit time dt to obtain the respiratory volume dV; in a respiratory time T, the respiratory volume dV is integrated with respect to the respiratory time T to obtain the total respiratory volume.

[0084] S8. Respiratory work calculation: The respiratory pressure is multiplied by the respiratory volume to obtain the respiratory work.

[0085] In step S8, the calculation process of the respiratory work includes:

[0086] The respiratory work (WOB) refers to the energy consumed to overcome the resistance of the airway, the elastic resistance of the lung and chest wall, etc. during the process of gas entering and exiting the respiratory tract and lung during respiratory movement. In physics, work done = force × distance moved. For respiratory movement, respiratory work (WOB) = change in pressure (P) × volume (V). Since the changes in pressure and volume are nonlinear, the calculation of WOB requires the integral of the changes in pressure and volume. That is:

[0087] WOB = ∫P(t) × dV = ∫P(t) × flow(t) dt

[0088] wherein WOB is the work of breathing, usually expressed in joules per liter of ventilation (J / L), P represents the pressure, and V represents the volume of breathing;

[0089] Specific calculation: in a unit time dt, the collected respiratory flow rate flow(t) is substituted into the respiratory flow rate / pressure curve information set to obtain the corresponding respiratory pressure P(t); the respiratory flow rate flow(t) is multiplied by the unit time dt to obtain the respiratory volume dV; in a respiratory time T, the product of the respiratory pressure P(t) and the respiratory volume dV is integrated for the respiratory time T to obtain the total respiratory work.

[0090] Based on the execution of the above respiratory pressure detection method, the present application provides a respiratory pressure detection device, which comprises a respiratory trainer 1, the respiratory trainer 1 comprising a breathing chamber 2, a breathing weight 3, a mouthpiece 4, and a gas guide pipe 5, at least one breathing weight 3 being placed in the breathing chamber 2, and the mouthpiece 4 being connected to the breathing chamber 2 through the gas guide pipe 5.

[0091] During the detection of the respiratory pressure, at least one breathing weight 3 can be placed in the breathing chamber 2 according to the flow rate and the gas flow to be simulated, and of course, if no weight detection is performed, the weight can not be placed in the breathing chamber 2, and the respiratory pressure values corresponding to different weights of the breathing weight 3 can be measured according to the respiratory pressure detection method.

[0092] After the respiratory pressure value is quantified, when the user uses the respiratory trainer 1, the user exhales or inhales into the breathing chamber 2 through the mouthpiece 4, and the breathing weight 3 inside the breathing chamber 2 rises and falls under the air pressure, at this time, the user only needs to know the current respiratory pressure threshold and real-time respiratory pressure, as well as the respiratory volume and respiratory work generated in the training process according to the weight of the weight and the respiratory flow rate, so as to record the training results and feedback the training effect.

[0093] Based on the execution of the above respiratory pressure detection method, the present application also provides a computer device for detecting respiratory pressure, which comprises a respiratory detection device, a memory, a processor, a computer program stored in the memory and running on the processor, the respiratory detection device comprising a control unit for setting a respiratory flow rate, a dynamic gas supply unit for generating a detection gas flow, and an air pressure sensor for detecting a respiratory pressure signal, the processor being connected to and controlling the respiratory detection device, and the processor executing the computer program to execute the respiratory pressure detection method.

[0094] In the execution of the respiratory pressure detection, the dynamic air supply unit of the respiratory detection device is docked with the respiratory trainer 1, the processor runs the computer program to send the information of the flow rate and the air flow rate required for air supply to the control unit, and then the control unit controls the output of the dynamic air supply unit, so as to control the flow rate and the flow rate of the air supply of the respiratory trainer 1 according to different respiratory simulation modes, and feedback the respiratory pressure value in real time through the air pressure sensor, and then the processor detects the different respiratory pressure values corresponding to the different weights of the respiratory weight 3 according to the summarized data, and provides data support for the quantification of the respiratory trainer 1.

[0095] The computer device can further include a database and a communication module, the database can store the information data of the respiratory simulation mode, various feedback data, and the relationship between various parameters, and the communication module can transmit the data information in the computer device to other devices.

[0096] Through the cooperation of the respiratory pressure detection method, device and computer device of the present application, the function formula of the weight / pressure curve of the respiratory weight 3 and the function formula of the respiratory flow rate / pressure curve are established, the user can know the current respiratory flow rate and respiratory pressure in real time during the training process, which can guide the user to set the respiratory training plan that meets the user's physical health, and can digitalize the result of each training, and improve the effectiveness and safety of the user's respiratory training.

[0097] The above is a further detailed description of the present application in combination with specific preferred embodiments, and cannot be considered as limiting the specific implementation of the present application to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or substitutions can be made without departing from the concept of the present application, and all of them should be considered as belonging to the protection scope of the present application.

Claims

1. A method of detecting respiratory pressure, characterized by, The method comprises the following steps: S1. Simulate respiratory airflow: set a plurality of respiratory simulation modes of flow rate through the control unit of the respiratory detection device, and control the dynamic air supply unit in the respiratory detection device to generate a plurality of detection airflows matched with the respiratory simulation modes; S2. Training device load setting: place at least one breathing weight in the breathing chamber of the breathing training device, and obtain a set of breathing weight values; S3. Obtain pressure feedback data: connect the air volume interface of the dynamic air supply unit of the respiratory detection device to the mouthpiece of the breathing training device to be detected, and blow or suck the set detection airflow into the breathing training device to be detected through the dynamic air supply unit of the respiratory detection device, so as to trigger the air pressure sensor in the respiratory detection device; S4. Obtain the function formula of the breathing weight / pressure curve: record the set of breathing weight values of the breathing weight under each detection airflow and the set of breathing pressure signals corresponding to the air pressure sensor, and process the set of breathing weight values and the set of breathing pressure signals to form the function formula of the breathing weight / pressure curve; S5. Obtain the function formula of the breathing flow rate / pressure curve: record the set of breathing flow rates under each detection airflow and the set of breathing pressure signals corresponding to the air pressure sensor, and process the set of breathing flow rates and the set of breathing pressure signals to form the function formula of the breathing flow rate / pressure curve; S6. Calculate the breathing pressure: obtain the corresponding breathing pressure threshold value through the breathing weight placed by the user during use according to the function formula of the breathing weight / pressure curve obtained in step S4; obtain the corresponding real-time breathing pressure through the monitoring of the breathing flow rate of the user during use according to the function formula of the breathing flow rate / pressure curve obtained in step S5; S7. Calculate the breathing capacity: multiply the breathing flow rate by the breathing time to obtain the breathing capacity; S8. Calculate the breathing work: multiply the breathing pressure by the breathing capacity to obtain the breathing work.

2. The respiratory pressure detection method of claim 1, wherein, In step S4, the process of processing the set of breathing weight values and the set of breathing pressure signals comprises: S41. Determine the specifications and quantity of the breathing weight, and obtain the set of breathing weight values; the weight of the breathing weight is calculated according to the material, specifications and quantity of the breathing weight, and the calculation formula includes the product of the material density ρ, the volume V, the specification coefficient k and the quantity q, that is, M = pV x k x q = pπr 2 h x k x q In the formula, r is the radius of the breathing weight, and h is the height of the breathing weight; S42. Determine the set of breathing pressures corresponding to the breathing weight under the preset condition; when the respiratory detection device blows into the mouthpiece, the positive force applied to the breathing weight will increase, and when the positive pressure air force acting on the breathing weight exceeds the weight of the breathing weight in the breathing chamber, the breathing weight will move along the height of the breathing chamber; when the positive pressure air force in the breathing chamber is equal to the weight of the breathing weight, the breathing weight will be suspended in the breathing chamber, and the pressure detected by the air pressure sensor of the respiratory detection device at this time is the breathing pressure corresponding to the current breathing weight. S43. Determine the corresponding breathing pressure data value in the breathing pressure set as the ordinate, determine the corresponding breathing weight in the breathing weight set as the abscissa, and fit the obtained breathing weight / pressure curve coordinates to obtain the function information of the breathing weight / pressure curve.

3. The respiratory pressure detection method of claim 1, wherein, In the step S5, the data processing of the breathing flow rate set and the breathing pressure signal set includes: S51. Place at least one breathing weight in the breathing chamber, determine the breathing flow rate of the breathing detection device, obtain the breathing flow rate set under different breathing weights, and record the breathing flow rate set corresponding to the breathing pressure set detected by the air pressure sensor of the breathing detection device; S52. Determine the corresponding breathing pressure data value in the breathing pressure set as the ordinate, determine the corresponding breathing flow rate in the breathing flow rate set as the abscissa, and fit the obtained breathing flow rate / pressure curve coordinates to obtain the function information of the breathing flow rate / pressure curve.

4. The respiratory pressure detection method of claim 1, wherein, In the step S6, the calculation of the breathing pressure includes the breathing pressure threshold and the real-time breathing pressure: S61. Calculation of the breathing pressure threshold: obtain the weight of the breathing weight placed by the user during use through the specification and quantity of the breathing weight, and substitute it into the function formula of the breathing weight / pressure curve in S4 to obtain the corresponding breathing pressure. At this time, the breathing pressure is defined as the breathing pressure threshold of the current breathing weight; S62. Calculation of the real-time breathing pressure: obtain the weight of the breathing weight by observing the specification and quantity of the breathing weight used by the user, monitor the breathing flow rate of the user during the breathing training under the current breathing weight, and obtain the real-time breathing pressure according to the function formula of the breathing flow rate / pressure curve in S5.

5. The respiratory pressure detection method of claim 1, wherein, In the step S7, the calculation process of the breathing capacity includes: The breathing capacity refers to the volume of gas inhaled or exhaled by the user during each training process, which is represented by V and is usually measured by the integral method of breathing flow rate and time as follows: V = ∫flow(t) × dt Where flow is the flow rate and t is the time. Specific calculation: multiply the collected breathing flow rate flow(t) by the unit time dt to obtain the breathing capacity dV in a unit time dt; and integrate the breathing capacity dV over the breathing time T to obtain the total breathing capacity.

6. The respiratory pressure detection method of claim 1, wherein, In the step S8, the calculation process of the breathing work includes: WOB = ∫P(t) × dV = ∫P(t) × flow(t) dt Where WOB is the breathing work, the unit is usually joule per liter of ventilation (J / L), P represents the unit pressure, and V represents the breathing capacity. Specific calculation: substitute the collected breathing flow rate flow(t) into the breathing flow rate / pressure curve information set to obtain the corresponding breathing pressure P(t); multiply the breathing flow rate flow(t) by the unit time dt to obtain the breathing capacity dV; and integrate the product of the breathing pressure P(t) and the breathing capacity dV over the breathing time T to obtain the total breathing work.

7. A respiratory pressure detection apparatus for performing the respiratory pressure detection method of any one of claims 1 to 6, characterized by The application relates to a breathing training device, which comprises a breathing chamber, breathing weights, a blowing nozzle and an air guide tube, wherein at least one breathing weight is arranged in the breathing chamber, and the blowing nozzle is connected with the breathing chamber through the air guide tube.

8. A computer device for respiratory pressure detection, characterized by The application relates to a breathing detection device, a memory, a processor, a computer program stored in the memory and running on the processor, the breathing detection device comprising a control unit for setting a breathing flow rate, a dynamic air supply unit for generating a detection air flow, and an air pressure sensor for detecting a breathing pressure signal, the processor being connected with and controlling the breathing detection device, and the processor executing the computer program to perform the breathing pressure detection method according to any one of claims 1 to 6.

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