Method for assisting abdominal respiration by using training belt with sensor

Abstract

The invention provides a method for assisting abdominal respiration by using training belts with sensors, which adopts two training belts, the sensor in one training belt is arranged on the abdomen of a user, and the sensor in the other training belt is arranged on the chest of the user. When a user carries out training, firstly, output values of sensors arranged on the abdomen and the chest of the user in a breath-holding state, an abdominal expiration state and an abdominal inspiration state are collected, and if the output values basically meet the requirements of abdominal breathing, the output values are set as reference values of the user; comparing a numerical value output by the sensor and collected in subsequent training with the reference value, and judging whether the breathing method of the user is correct or not and whether the training effect is improved or not according to a comparison result; and if not, re-collecting. According to the method, the reference value can be set according to the actual condition of the user, the method is suitable for each independent user, and the user can perform training according to the actual condition.

Description

Technical Field

[0001] The invention belongs to the field of respiratory movement auxiliary system and sensor technology, and in particular relates to a method for assisting abdominal breathing by using a training belt with a sensor. Background Art

[0002] Breathing is a basic life activity of the human body, providing the body with sufficient oxygen to maintain normal metabolism and movement.

[0003] Breathing generally includes thoracic breathing and abdominal breathing. Thoracic breathing helps to keep the chest open and make the rib muscles around the chest stronger, but the breathing efficiency is not high, it is laborious and not much air is inhaled. In addition, the activity of the upper thoracic muscles dominates in thoracic breathing, and the activities that also rely on the upper muscles in daily life (such as vocal activities, etc.) are easily inhibited. Abdominal breathing is achieved by increasing the activity of the diaphragm and reducing the movement of the chest cavity. It can fully activate the abdominal viscera, promote its blood circulation, and may even strengthen the function of the abdominal viscera. Compared with thoracic breathing, abdominal breathing can reduce the use of muscles, increase the amount of gas exchange between the body and the outside world, increase lung capacity, and improve cardiopulmonary function; reduce heart rate and blood pressure, relieve tense nerves and pressure; stimulate intestinal peristalsis, promote blood circulation in the digestive tract, and reduce constipation; improve abdominal muscle strength and endurance, tighten the abdominal core, and shape a good body. Therefore, abdominal breathing is widely used in leisure and relaxation, vocal activities, fitness exercises, health exercises, and rehabilitation training.

[0004] In abdominal breathing, the common inhalation and exhalation method is: when inhaling, the diaphragm descends, the abdominal muscles expand, the organs are squeezed, and the abdomen expands instead of the chest. On the premise of feeling comfortable, try to inhale as deeply as possible; when exhaling, the abdomen contracts, the diaphragm rises, and the air is exhaled. Compared with chest breathing, abdominal breathing mainly involves the rise and fall of the abdomen, while the rise and fall of the chest cavity is smaller.

[0005] In order to improve the effect of abdominal breathing, a trainer is generally used to assist abdominal breathing. A preferred trainer is a training belt with a sensor. The training belt is worn during training, and the sensor is located on the abdomen. When abdominal breathing is performed, the abdomen rises and falls, which drives the output signal of the sensor to change. The output signal is monitored and compared with the set threshold value, and the changes in the exhalation and inhalation states during abdominal breathing can be obtained, so as to determine whether the trainee's exhalation and inhalation methods are correct and provide guidance.

[0006] For example, patent document CN201810643690.0 discloses an intelligent abdominal breathing exerciser, including a belt and a displacement sensor. The human body wears the belt when performing abdominal breathing. The displacement sensor reciprocates perpendicular to the abdomen to generate a displacement signal and transmits it to a processor. When stationary, the displacement sensor signal is zero; when the abdomen is retracted, the displacement sensor generates a positive displacement signal or a negative displacement signal; and when the abdomen is bulging, the displacement sensor generates an opposite negative displacement signal or a positive displacement signal; when the absolute value of the negative displacement signal or the positive displacement signal is greater than a preset threshold, the processor transmits an encouragement signal to the sound module, and when the sound module receives the encouragement signal, it emits an encouraging sound.

[0007] However, in actual training, it is found that many trainees, due to their habit of chest breathing, always introduce chest breathing when performing abdominal breathing, causing the chest to also rise and fall greatly, and the abdominal breathing method is not completely correct, resulting in insufficient depth of inhalation and exhalation, thus failing to fully achieve the training, relaxation, and health-preserving effects. When using the above method to assist abdominal breathing, since the sensor only monitors the rise and fall of the abdomen and only determines the exhalation and inhalation state of abdominal breathing based on the information of the change of the rise and fall of the abdomen, it cannot fully reflect the changes in the body during abdominal breathing, and thus cannot correctly determine whether the abdominal breathing method is completely correct, and cannot provide effective guidance.

[0008] In addition, when using a training belt with a sensor to assist abdominal breathing, an abdominal inhalation threshold and an abdominal exhalation threshold are usually set, and the output signal of the sensor is compared with the set threshold to determine whether the trainee's breathing method during abdominal inhalation and exhalation is correct and whether the breathing effect is improved. However, there are individual differences between trainees, and the set thresholds are not suitable for every trainee. Therefore, this method cannot correctly determine whether each trainee's breathing method is correct or not and whether the training effect is improved. Summary of the invention

[0009] In view of the above-mentioned technical status quo, the present invention provides a method for assisting abdominal breathing using a training belt with a sensor. The method sets a threshold value according to the specific situation of each trainee and has individual applicability. When the trainee performs abdominal breathing, the method can improve the accuracy of judging whether the exhalation and inhalation methods are correct or not, thereby improving the effectiveness of training guidance.

[0010] The technical solution provided by the present invention is: a method for assisting abdominal breathing by using a training belt with a sensor, wherein two training belts are provided, and each training belt is provided with a sensor;

[0011] The user wears the two training belts when performing abdominal breathing. The sensor in one training belt is set on the user's abdomen to monitor the rise and fall of the abdomen during abdominal breathing; the sensor in the other training belt is set on the user's chest to monitor the rise and fall of the chest during abdominal breathing;

[0012] The method comprises the following steps:

[0013] (1) Set the reference value Y 腹部-屏气 , Y 胸部-屏气 , Y 腹部-吸气 , Y 胸部-吸气 , Y 腹部-呼气 , Y 胸部-呼气 , comprising the following steps (1-0) to (1-7):

[0014] (1-0) The user wears the training belt and restarts the two sensors;

[0015] The user holds his breath in a certain posture, and the output value of the sensor set on the user's abdomen is recorded, denoted as Y 腹部-屏气 , and record the output value of the sensor set on the user's chest, recorded as Y 胸部-屏气 ;

[0016] The user maintains the above posture and performs abdominal breathing, i.e., abdominal inhalation and abdominal exhalation. The output value of the sensor set on the user's abdomen during abdominal inhalation is recorded and recorded as Y 腹部-吸气 , and record the output value of the sensor set on the user's chest, recorded as Y 胸部-吸气 ; Record the output value of the sensor set on the user's abdomen during abdominal exhalation, recorded as Y 腹部-呼气 , and record the output value of the sensor set on the user's chest, recorded as Y 胸部-呼气 ;

[0017] (1-1) According to Y 腹部-屏气 With Y 腹部-吸气 If it is determined that the abdomen bulges during abdominal inhalation compared with breath holding, then step (1-2) is executed, otherwise step (1-0) is executed;

[0018] (1-2) According to Y 腹部-屏气 With Y 腹部-呼气 Determine that if the abdomen contracts during abdominal exhalation compared with breath holding, then execute step (1-3); otherwise, execute step (1-0);

[0019] (1-3) According to Y 腹部-吸气 With Y 胸部-吸气 If it is determined that the bulge of the abdomen is larger than that of the chest, then step (1-4) is executed, otherwise step (1-0) is executed;

[0020] (1-4) According to Y腹部-呼气 With Y 胸部-呼气 If it is determined that the contraction amplitude of the abdomen is larger than that of the chest, then step (2) is executed; otherwise, step (1-0) is executed;

[0021] (2) The user performs abdominal breathing training, including the following steps (2-0) to (2-6):

[0022] (2-0) The user performs abdominal breathing, and the output value of the sensor set on the user's abdomen is recorded, denoted as y 腹部 , and record the output value of the sensor set on the user's chest, recorded as y 胸部 ;

[0023] (2-1) According to y 胸部 With Y 胸部-吸气 Judgment, if you get the same as Y 胸部-吸气 If the breast bulge is smaller, then execute step (2-2); otherwise, execute step (2-6);

[0024] (2-2) According to y 腹部 With Y 腹部-屏气 If the result is that the abdomen bulges compared with the breath holding, then execute step (2-4), otherwise execute step (2-3);

[0025] (2-3) According to y 腹部 With Y 腹部-屏气 If it is determined that the abdomen contracts compared to holding the breath, then step (2-5) is executed, otherwise step (2-6) is executed;

[0026] (2-4) Determine that the training state at this time is normal abdominal inhalation;

[0027] As a preference, according to y 腹部 With Y 腹部-吸气 Judgment, if you get the same as Y 腹部-吸气 In comparison, if the amplitude of abdominal bulge increases, it is judged that the effect of abdominal inhalation is improved; conversely, it is judged that the effect of abdominal inhalation is reduced;

[0028] As a further preferred embodiment, according to y 腹部 With Y 腹部-吸气 Judgment, if you get the same as Y 腹部-吸气 Compared with the previous study, the abdominal bulge is larger, and according to y 胸部 With Y 胸部-吸气 Judgment, if you get the same as Y 胸部-吸气 In comparison, if the chest bulge decreases (the smaller the chest change during abdominal breathing, the better), it is judged that the effect of abdominal inhalation is significantly improved; otherwise, it is judged that the effect of abdominal inhalation is reduced;

[0029] (2-5) Determine that the training state at this time is normal abdominal exhalation;

[0030] As a preference, according to y 腹部 With Y 腹部-呼气 Judgment, if you get the same as Y 腹部-呼气 In comparison, if the abdominal contraction amplitude increases, it is judged that the effect of this abdominal exhalation is improved; conversely, it is judged that the effect of this abdominal exhalation is reduced;

[0031] As a further preferred embodiment, according to y 腹部 With Y 腹部-呼气 Judgment, if you get the same as Y 腹部-呼气 Compared with the above, the abdominal contraction amplitude is larger, and according to y 胸部 With Y 胸部-呼气 Judgment, if you get the same as Y 胸部-呼气 In comparison, if the chest contraction amplitude decreases (the smaller the chest change during abdominal breathing, the better), it is judged that the effect of this abdominal exhalation is significantly improved; conversely, it is judged that the effect of this abdominal exhalation is reduced;

[0032] (2-6) It is determined that the training status is wrong at this time.

[0033] The breath holding means that the user neither inhales nor exhales.

[0034] The material of the training belt is not limited. Preferably, the training belt is made of a stretchable soft elastic material.

[0035] Preferably, the sensor is a flexible sensor, which can detect the rise and fall or contraction changes when the abdomen or chest rises and falls or contracts.

[0036] The sensor may be of any type, for example, a displacement sensor, a capacitance sensor, a resistance sensor, etc.

[0037] (I) When the sensor is a capacitive sensor

[0038] The sensor output value is the capacitance value, and C is used instead of Y to refer to the capacitance value. When the abdomen bulges, the capacitance value output by the sensor increases, and when the abdomen contracts, the capacitance value output by the sensor decreases. Therefore:

[0039] In the step (1-1), compared with C 腹部-屏气 With C 腹部-吸气 , when C 腹部-屏气 <C 腹部-吸气 , it means that the abdomen is bulging, otherwise it means that the abdomen is shrinking or there is no change;

[0040] In the step (1-2), compared with C 腹部-屏气 With C 腹部-呼气 , when C 腹部-屏气 >C 腹部-呼气 , it means the abdomen is contracted, otherwise it means the abdomen is bulging or there is no change;

[0041] In the step (1-3), compared with C 腹部-吸气 With C 胸部-吸气 , when C 腹部-吸气 >C 胸部-吸气 , it means that the bulge of the abdomen is larger than that of the chest, otherwise it means that the bulge of the abdomen is smaller or equal to that of the chest;

[0042] In the step (1-4), compared with C 腹部-呼气 With C 胸部-呼气 , when C 腹部-呼气 <C 胸部-呼气 , it means that the contraction amplitude of the abdomen is larger than that of the chest, otherwise it means that the contraction amplitude of the abdomen is smaller or equal to that of the chest;

[0043] In the step (2-1), compare c 胸部 With C 胸部-吸气 , when c 胸部 <C 胸部-吸气 , then it means that 胸部-吸气 Compared with the chest, the bulge is smaller, which means that it is similar to C 胸部-吸气 The breast bulge is greater or equal to that of the chest;

[0044] In the step (2-2) and step (2-3), compare c 腹部 With C 腹部-屏气 , when c 腹部 >C 腹部-屏气 , it means that the abdomen bulges compared with breath holding. 腹部 <C 腹部-屏气 , it means that the abdomen contracts compared to holding the breath.

[0045] In the step (2-4), compared with c 腹部 With C 腹部-吸气 , when c 腹部 >C 腹部-吸气 , it means that compared with the set abdominal inhalation, the abdominal bulge increases, and it is judged that the effect of this abdominal inhalation is improved. On the contrary, it means that compared with the set abdominal inhalation, the abdominal bulge decreases or remains unchanged, and it is judged that the effect of this abdominal inhalation is not improved. As a further preferred embodiment, compared with c 腹部 With C 腹部-吸气 And contrast c 胸部 With C 胸部-吸气 , when c 腹部 >C 腹部-吸气 , and c 胸部 <C 胸部-吸气 (The smaller the chest bulge during abdominal inhalation, the better the effect of abdominal inhalation), it means that compared with the set abdominal inhalation, the abdominal bulge this time is significantly increased, and it can be judged that the effect of abdominal inhalation this time is significantly improved.

[0046] In the step (2-5), compared with c 腹部 With C 腹部-呼气 , when c 腹部 <C 腹部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is increased, and it is judged that the effect of this abdominal exhalation is improved. On the contrary, it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is reduced or unchanged, and it is judged that the effect of this abdominal exhalation is not improved. As a further preferred embodiment, compared with c 腹部 With C 腹部-呼气 And contrast c 胸部 With C 胸部-呼气 , when c 腹部 <C 腹部-呼气 , and c 胸部 >C 胸部-呼气 (The smaller the chest contraction during abdominal exhalation, the better the effect of abdominal exhalation), this means that compared with the set abdominal exhalation, the abdominal contraction amplitude is significantly increased, and it can be judged that the effect of abdominal exhalation is significantly improved.

[0047] (ii) When the sensor is a displacement sensor

[0048] The sensor output value is the displacement value, and L is used instead of Y to refer to the displacement value. When the abdomen bulges, the displacement value output by the sensor increases, and when the abdomen contracts, the displacement value output by the sensor decreases. Therefore:

[0049] In the step (1-1), compared with L 腹部-屏气 With L 腹部-吸气 , when L 腹部-屏气 <L 腹部-吸气 , it means that the abdomen is bulging, otherwise it means that the abdomen is shrinking or there is no change;

[0050] In the step (1-2), compared with L 腹部-屏气 With L 腹部-吸气 , when L 腹部-屏气 >L 腹部-呼气 , it means the abdomen is contracted, otherwise it means the abdomen is bulging or there is no change;

[0051] In the step (1-3), compared with L 腹部-吸气 With L 胸部-吸气 , when L 腹部-吸气 >L 胸部-吸气 , it means that the bulge of the abdomen is larger than that of the chest, otherwise it means that the bulge of the abdomen is smaller or equal to that of the chest;

[0052] In the step (1-4), compared with L 腹部-呼气 With L 胸部-呼气 , when L 腹部-呼气 <L胸部-呼气 , it means that the contraction amplitude of the abdomen is larger than that of the chest, otherwise it means that the contraction amplitude of the abdomen is smaller or equal to that of the chest;

[0053] In the step (2-1), compared with l 胸部 With L 胸部-吸气 , when l 胸部 <L 胸部-吸气 , then it means that 胸部-吸气 Compared with the chest, the bulge is smaller, which means that it is similar to L 胸部-吸气 The breast bulge is greater or equal to that of the chest;

[0054] In the step (2-2) and step (2-3), compare l 腹部 With L 腹部-屏气 , when l 腹部 >L 腹部-屏气 , it means that the abdomen bulges compared with breath holding. 腹部 <L 腹部-屏气 , it means that the abdomen contracts compared to holding the breath.

[0055] In the step (2-4), compared with l 腹部 With L 腹部-吸气 , when l 腹部 >L 腹部-吸气 , it means that compared with the set abdominal inhalation, the abdominal bulge increases, and it is judged that the effect of this abdominal inhalation is improved. On the contrary, it means that compared with the set abdominal inhalation, the abdominal bulge decreases or remains unchanged, and it is judged that the effect of this abdominal inhalation is not improved. As a further preferred embodiment, compared with l 腹部 With L 腹部-吸气 And contrast l 胸部 With L 胸部-吸气 , when l 腹部 >L 腹部-吸气 , and l 胸部 <L 胸部-吸气 (The smaller the chest bulge during abdominal inhalation, the better the effect of abdominal inhalation), it means that compared with the set abdominal inhalation, the abdominal bulge this time is significantly increased, and it can be judged that the effect of abdominal inhalation this time is significantly improved.

[0056] In the step (2-5), compared with l 腹部 With L 腹部-呼气 , when l 腹部 <L 腹部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction degree is increased, and it is judged that the effect of this abdominal exhalation is improved. On the contrary, it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is reduced or unchanged, and it is judged that the effect of this abdominal exhalation is not improved. As a further preferred embodiment, compared with l 腹部 With L 腹部-呼气 And contrast l 胸部With L 胸部-呼气 , when l 腹部 <L 腹部-呼气 , and l 胸部 >L 胸部-呼气 , (the smaller the chest contraction during abdominal exhalation, the better the effect of abdominal exhalation) means that compared with the set abdominal exhalation, the abdominal contraction degree is significantly increased this time, which means that the effect of abdominal exhalation is significantly improved.

[0057] (III) When the sensor is a resistance sensor

[0058] The sensor output value is the resistance value, and R is used instead of Y to represent the resistance value. When the abdomen bulges, the resistance value output by the sensor increases, and when the abdomen contracts, the resistance value output by the sensor decreases. Therefore:

[0059] In the step (1-1), R 腹部-屏气 With R 腹部-吸气 , when R 腹部-屏气 <R 腹部-吸气 , it means that the abdomen is bulging, otherwise it means that the abdomen is shrinking or there is no change;

[0060] In the step (1-2), R 腹部-屏气 With R 腹部-吸气 , when R 腹部-屏气 >R 腹部-呼气 , it means the abdomen is contracted, otherwise it means the abdomen is bulging or there is no change;

[0061] In the step (1-3), R 腹部-吸气 With R 胸部-吸气 , when R 腹部-吸气 >R 胸部-吸气 , it means that the bulge of the abdomen is larger than that of the chest, otherwise it means that the bulge of the abdomen is smaller or equal to that of the chest;

[0062] In the step (1-4), compare R 腹部-呼气 With R 胸部-呼气 , when R 腹部-呼气 <R 胸部-呼气 , it means that the contraction amplitude of the abdomen is larger than that of the chest, otherwise it means that the contraction amplitude of the abdomen is smaller or equal to that of the chest;

[0063] In the step (2-1), the comparison of r 胸部 With R 胸部-吸气 , when r 胸部 <R 胸部-吸气 , then it means that 胸部-吸气 Compared with the chest, the bulge is smaller, which means that it is similar to R 胸部-吸气 The breast bulge is greater or equal to that of the chest;

[0064] In the step (2-2) and step (2-3), compare r 腹部 With R 腹部-屏气 , when r 腹部 >R 腹部 - 屏气 , it means that the abdomen bulges compared with breath holding. 腹部 <R 腹部-屏气 , it means that the abdomen contracts compared to holding the breath.

[0065] In the step (2-4), the comparison of r 腹部 With R 腹部-吸气 , when r 腹部 >R 腹部-吸气 , it means that compared with the set abdominal inhalation, the abdominal bulge increases, and it is judged that the effect of this abdominal inhalation is improved. On the contrary, it means that compared with the set abdominal inhalation, the abdominal bulge decreases or remains unchanged, and it is judged that the effect of this abdominal inhalation is not improved. As a further preferred embodiment, the comparison r 腹部 With R 腹部-吸气 And contrast r 胸部 With R 胸部-吸气 , when r 腹部 >R 腹部-吸气 , and r 胸部 <R 胸部-吸气 (The smaller the chest bulge during abdominal inhalation, the better the effect of abdominal inhalation), it means that compared with the set abdominal inhalation, the abdominal bulge this time is significantly increased, and it can be judged that the effect of abdominal inhalation this time is significantly improved.

[0066] In the step (2-5), the comparison of r 腹部 With R 腹部-呼气 , when r is obtained 腹部 <R 腹部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction degree is increased, and it is judged that the effect of this abdominal exhalation is improved. On the contrary, it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is reduced or unchanged, and it is judged that the effect of this abdominal exhalation is not improved. As a further preferred embodiment, the comparison r 腹部 With R 腹部-呼气 And contrast r 胸部 With R 胸部-呼气 , when r 腹部 <R 腹部-呼气 , and r 胸部 >R 胸部-呼气 , (the smaller the chest contraction during abdominal exhalation, the better the effect of abdominal exhalation) means that compared with the set abdominal exhalation, the abdominal contraction amplitude is significantly increased this time, which means that the effect of abdominal exhalation is significantly improved.

[0067] Preferably, the step (1) further comprises the following steps (1-5) and (1-6):

[0068] (1-5) According to Y 胸部-屏气 With Y 胸部-吸气 If it is determined that the chest bulges or does not change during abdominal inhalation compared with breath holding, then step (1-6) is executed, otherwise step (1-0) is executed;

[0069] (1-6) According to Y 胸部-屏气 With Y 胸部-呼气 Determine that if the chest shrinks or does not change during abdominal exhalation compared with breath holding, then execute step (1-6); otherwise, execute step (1-0);

[0070] In abdominal breathing, if the user masters the correct breathing method, the chest cavity changes little during breathing. 胸部-吸气 , Y 胸部-呼气 , Y 胸部-屏气 Therefore, if it is found through training that the user has basically mastered the correct breathing method, the output value Y of the sensor set on the user's chest may not be recorded when the user holds his breath in step (1-0). 胸部-屏气 .

[0071] Preferably, the two training belts have the same structure, and the sensors therein have the same structure.

[0072] Preferably, in step (2-4), it is determined that the training state at this time is normal abdominal inhalation, and the inhalation-related information is displayed on the terminal APP.

[0073] Preferably, in the step (2-5), it is determined that the training state at this time is normal abdominal exhalation, and the exhalation-related information is displayed on the terminal APP.

[0074] Preferably, in step (2-6), it is determined that the training state is wrong at this time, and the terminal APP reminds the patient to keep the chest unchanged when breathing.

[0075] Preferably, before step (1), the user is taught the correct abdominal breathing method. Further preferably, the user may perform some abdominal breathing training and then perform step (1), thereby improving the efficiency of setting the reference value.

[0076] Compared with the prior art, the present invention has the following beneficial effects:

[0077] (1) The present invention uses two training belts with sensors for auxiliary training in abdominal breathing. The sensor of one training belt is placed on the user's abdomen, and the sensor of the other training belt is placed on the user's chest. When the user is training, the output values ​​of the sensor set on the abdomen and the output values ​​of the sensor set on the chest are first collected when the user is in the breath-holding state and the abdominal exhalation and abdominal inhalation states. These output values ​​are comprehensively examined. If these output values ​​basically meet the requirements of abdominal breathing, these output values ​​are set as the reference values ​​of the user. The values ​​of the sensor outputs collected in subsequent training are compared with the reference values. According to the comparison results, it is judged whether the user's breathing method is correct and whether the training effect is improved; if these output values ​​do not meet the basic requirements of abdominal breathing, they are collected again. This method can set the reference value according to the actual situation of the user, is suitable for each independent user, and the user can train according to his or her actual situation.

[0078] (2) When setting the reference value, the present invention combines the output value of the sensor set on the abdomen and the output value of the sensor set on the chest. That is, in abdominal breathing, not only the changes in the abdomen but also the changes in the chest are taken into account. The correctness of the breathing method is judged from the overall changes in the user's abdomen and chest, thereby improving the accuracy of the judgment and thus improving the effectiveness of subsequent training guidance.

[0079] (3) The training method of the present invention is simple and easy to operate. Users can use this method to obtain the correct abdominal breathing method and can gradually and quickly improve their training according to their own situation.

[0080] The sensor in the training band of the present invention can be a displacement sensor, a capacitive sensor or a resistance sensor. When a flexible capacitive strain sensor is selected, in order to take into account the good deformation ability and tensile resistance of the sensor, the present invention also provides a flexible capacitive strain sensor, which is a stacked structure, and sequentially includes a first packaging layer, a first conductive layer, a dielectric layer, a second conductive layer and a second packaging layer, and the first packaging layer, the first conductive layer, the dielectric layer, the second conductive layer and the second packaging layer have deformation ability;

[0081] A first limiting portion is provided between the first packaging layer and the first conductive layer;

[0082] A second limiting portion is provided between the second packaging layer and the second conductive layer;

[0083] Among the dielectric layer, the first conductive layer, the first limiting portion and the first packaging layer, the first limiting portion has the largest tensile strength;

[0084] Among the dielectric layer, the second conductive layer, the second limiting portion and the second packaging layer, the second limiting portion has the largest tensile strength.

[0085] In actual stretching, in order to facilitate stretching, preferably, stretching parts are provided at both ends of the flexible capacitive strain sensor along the stretching direction, which are denoted as the first stretching part and the second stretching part.

[0086] The first encapsulation layer and the second encapsulation layer may be made of any material, including elastic fiber cloth, elastic silicone rubber, etc.

[0087] The materials constituting the first conductive layer and the second conductive layer are not limited, and include materials such as liquid metal slurry, elastic metal fiber cloth, elastic conductive silicone rubber, elastic conductive ionic liquid, mixed slurry of elastic metal and elastomer, etc.

[0088] The dielectric layer may be made of any material, including fiber cloth, elastic silicone rubber, TPU, TPR, TPE and the like.

[0089] The constituent materials of the first limiting part and the second limiting part are not limited, including carbon materials, metal materials, nylon, polytetrafluoroethylene and other polymer materials, etc.

[0090] Generally speaking, the tensile strength of a material is relatively large, and its tensile modulus is also relatively large, that is, its deformation capacity is relatively small. Therefore, compared with the dielectric layer, the first conductive layer, the first limiting portion, and the first packaging layer, the tensile modulus of the first limiting portion is relatively large, and its deformation capacity is relatively small, that is, it is not easy to deform; similarly, compared with the dielectric layer, the second conductive layer, the second limiting portion, and the second packaging layer, the tensile modulus of the second limiting portion is relatively large, and its deformation capacity is relatively small, that is, it is not easy to deform. Figure 3In the structure shown, the deformation capacity of the flexible capacitive strain sensor is directly limited by the deformation capacity of each layer, and the overall deformation capacity is relatively small. In order to take into account the good tensile resistance and good overall deformation capacity of the flexible capacitive strain sensor, it is preferred that one end of the first packaging layer and one end of the second packaging layer are directly connected to the first stretching part, and the other end of the first packaging layer and the other end of the second packaging layer are directly connected to the second stretching part, while the first limiting part, the first conductive layer, the dielectric layer, the second conductive layer and the two ends of the second limiting part are not directly connected to the first stretching part and the second stretching part. When the first stretching part and the second stretching part are stretched, the first packaging layer and the second packaging layer are directly stretched and deformed, driving the first limiting part, the first conductive layer, the dielectric layer, the second conductive layer and the second limiting part to deform. In this structure, in order to improve the deformation sensitivity, preferably, the tensile modulus of the first conductive layer (i.e., the tensile modulus of the first conductive layer; in the present invention, the tensile modulus of a certain layer refers to the tensile modulus of the constituent material of the layer, and when the constituent material of the layer is a composite material, it refers to the tensile modulus of the composite material; in the present invention, the tensile strength of a certain layer refers to the tensile strength of the constituent material of the layer, and when the constituent material of the layer is a composite material, it refers to the tensile strength of the composite material) is smaller than the tensile modulus of the first limiting portion, and the tensile modulus of the first limiting portion is smaller than the tensile modulus of the first packaging layer. As a further preference, the tensile modulus of the dielectric layer is smaller than the tensile modulus of the first conductive layer; similarly, preferably, the tensile modulus of the second conductive layer is smaller than the tensile modulus of the second limiting portion, and the tensile modulus of the second limiting portion is smaller than the tensile modulus of the second packaging layer. As a further preference, the tensile modulus of the dielectric layer is smaller than the tensile modulus of the second conductive layer.

[0091] In addition, in order to take into account the good tensile resistance and good overall deformation ability of the first limiting part and the second limiting part, the first limiting part and the second limiting part are preferably slender structures (that is, their length is much larger than the cross-sectional diameter), and their length direction is along the stretching direction. The cross-sectional diameter is preferably not more than 10mm, more preferably not more than 2mm, and most preferably not more than 1mm. As a further preferred embodiment, a pleated structure is provided in the first limiting part and the second limiting part. As the stretching progresses, the pleated structure is stretched and unfolded to extend the length, so that the first limiting part and the second limiting part can achieve certain stretchability. As a preferred implementation, along the stretching direction, the slender first limiting part and the second limiting part are undulating to form a pleated structure. In addition, as a preferred implementation, the first limiting part is arranged at both ends of the width direction of the first encapsulation layer, and the width direction of the first encapsulation layer is perpendicular to the stretching direction; the second limiting part is arranged at both ends of the width direction of the second encapsulation layer, and the width direction of the second encapsulation layer is perpendicular to the stretching direction.

[0092] Preferably, the first stretching portion and the second stretching portion are made of a hard material. In order to facilitate stretching and use, preferably, the first stretching portion and the second stretching portion are designed to be a shape that is easy to hold, such as a ring shape.

[0093] That is, the present invention sets a limiting part between the packaging layer and the conductive layer of the flexible capacitive strain sensor. Among the layers of the flexible sensor, the limiting part has the largest tensile resistance. Therefore, under the action of tensile force, even if the packaging layer is broken, the limiting part has a high tensile strength and can protect the conductive layer and the dielectric layer, thereby protecting the sensor, avoiding sensor failure due to the breakage of the conductive layer and the dielectric layer, which affects the detection work, and can increase the service life of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0094] Figure 1 It is a schematic diagram of the structure of the flexible breathing belt in Example 1 of the present invention.

[0095] Figure 2 It is a schematic diagram of the exploded structure of each layer of the flexible capacitive strain sensor in Example 1 of the present invention.

[0096] Figure 3 yes Figure 2 Schematic diagram of the flexible capacitive strain sensor after the layers are assembled.

[0097] Figure 4 It is a schematic diagram of the exploded structure of the control box in Example 1 of the present invention.

[0098] Figure 5 Schematic diagram of a method for wearing a training belt when using the training belt to assist abdominal breathing in Example 1 of the present invention.

[0099] Figure 6 This is a flow chart of using a training belt to assist abdominal breathing in Example 1 of the present invention.

[0100] Figure 7 It is a flow chart of the process of setting the reference value in Example 1 of the present invention.

[0101] The figures are marked as follows: flexible capacitive strain sensor 1, extension belt 2, control box 3, first packaging layer 111, first hard body 112, first limiting part 113, first conductive unit 114, first conductor 115, second packaging layer 121, second hard body 122, second limiting part 123, second conductive unit 124, second conductor 125, first dielectric layer 131, second dielectric layer 132, annular structure 141, first fixed male buckle 151, second fixed male buckle 152, third fixed male buckle 153, upper shell 31, lower shell 32, button 33, circuit board 34, battery 35, first fixed female buckle 361, second fixed female buckle 362, third fixed female buckle 363. DETAILED DESCRIPTION

[0102] The present invention is further described in detail below in conjunction with the embodiments and drawings. It should be pointed out that the embodiments described below are intended to facilitate the understanding of the present invention and do not have any limiting effect on the present invention.

[0103] Embodiment 1:

[0104] like Figure 1 As shown, in this embodiment, the training belt includes a flexible capacitive strain sensor 1, an extension belt 2 and a control box 3.

[0105] like Figure 2-3 As shown, the flexible capacitive strain sensor has a stacked structure, which includes a first packaging layer 111, a first limiting portion 113, a first conductive layer, a dielectric layer, a second conductive layer, a second limiting portion 123 and a second packaging layer 121 in sequence.

[0106] In this embodiment, the first encapsulation layer 111 and the second encapsulation layer 121 are elastic fiber cloths with a tensile elasticity of 90% (in the present invention, tensile elasticity = (length after stretching - length before stretching) ÷ length before stretching × 100%), a tensile modulus of 34.08 MPa, and a tensile strength of 55.4 MPa.

[0107] In this embodiment, the first conductive layer is composed of two symmetrical parts, each of which is a first conductive unit 114 with a protruding structure, and the two protruding structures are connected by a first conductor 115; the second conductive layer is composed of two symmetrical parts, each of which is a second conductive unit 124 with a protruding structure, and the two protruding structures are connected by a second conductor 125. The first conductive unit 114 and the second conductive unit 124 are made of liquid metal with a tensile elasticity of 100%, a tensile modulus of 24.25 MPa, and a tensile strength of 66.8 MPa.

[0108] In this embodiment, the dielectric layer is composed of a first dielectric layer 131 and a second dielectric layer 132 . The first dielectric layer 131 and the second dielectric layer 132 are TPU films with a tensile elasticity of 120%, a tensile modulus of 14.86 MPa, and a tensile strength of 51.2 MPa.

[0109] In this embodiment, the first limiting portion 13 and the second limiting portion 23 are designed as slender structures, and nylon wire, carbon wire, steel wire, polyethylene wire, etc. can be selected. In this embodiment, a polytetrafluoroethylene wire with a wire diameter of 0.16 mm is selected, and its tensile modulus is 29.77 MPa and its tensile strength is 151.6 MPa. In addition, in this embodiment, the polytetrafluoroethylene wire has a wavy structure along the stretching direction, and can be stretched and unfolded when stretched to extend the length and achieve 98% tensile elasticity. In this embodiment, the width direction of the first encapsulation layer 111 is perpendicular to the stretching direction, and the width direction of the second encapsulation layer 121 is perpendicular to the stretching direction; the first limiting portion 113 is arranged at both ends of the width direction of the first encapsulation layer 111, and does not overlap with the first conductive layer, and the second limiting portion 123 is arranged at both ends of the width direction of the second encapsulation layer 121, and does not overlap with the second conductive layer.

[0110] In this embodiment, stretching parts are provided at both ends of the flexible capacitive strain sensor along the stretching direction, which are recorded as the first stretching part and the second stretching part. In this embodiment, the first stretching part and the second stretching part are made of hard material polyurethane and are designed to be annular for easy gripping.

[0111] In this embodiment, polyurethane films are adhered to both ends of the length of the surface of the first packaging layer 111 to form a first hard body 112; liquid metal slurry is coated on the surface of the first packaging layer 111 by screen printing to prepare a first conductive layer; polytetrafluoroethylene wires are hot pressed at both ends of the width of the surface of the first packaging layer 111; and the first hard body 112, the first conductive layer and the polytetrafluoroethylene wire do not overlap with each other; polyurethane films are adhered to both ends of the length of the surface of the second packaging layer 121 to form a second hard body 122, and an annular structure 141 is embedded in the second hard body 122. In this embodiment, the annular structure 41 is a metal ring; liquid metal slurry is coated on the surface of the second packaging layer 121 by screen printing to prepare a second conductive layer; polytetrafluoroethylene wires are hot pressed at both ends of the width of the surface of the second packaging layer 121; and the second hard body 122, the second conductive layer 124 and the polytetrafluoroethylene wire do not overlap with each other.

[0112] In this embodiment, the first conductive layer 114 and the second conductive layer 124 are respectively arranged on the upper and lower surfaces of the dielectric layer, and the first conductive layer, the dielectric layer and the second conductive layer are combined together by a hot pressing method, and the first packaging layer 111, the first hard body 112, the second hard body 122 and the second packaging layer 121 are combined together.

[0113] In this embodiment, one end of the first packaging layer 111 and one end of the second packaging layer 121 are directly connected to the first stretching portion, and the other end of the first packaging layer 111 and the other end of the second packaging layer 121 are directly connected to the second stretching portion, while the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer and the two ends of the second limiting portion are not directly connected to the first stretching portion and the second stretching portion. When the first stretching portion and the second stretching portion are stretched, the first packaging layer and the second packaging layer are directly stretched and deformed, thereby causing the first limiting portion, the first conductive layer, the dielectric layer, the second conductive layer and the second limiting portion to deform.

[0114] In this embodiment, the overall tensile elasticity of the flexible capacitive strain sensor is 90%, which is a large strain tensile sensor.

[0115] In this embodiment, the extension belt 2 is preferably made of inelastic flexible fabric, and its two ends are connected to the two ends of the flexible capacitive strain sensor 1 through Velcro.

[0116] like Figure 4 As shown, the control box includes an upper shell 31, a lower shell 32, a button 33, a circuit board 34 and a battery 35. A first fixed female buckle 361, a second fixed female buckle 362 and the third fixed female buckle 363; the circuit board 34 is composed of a data acquisition unit, a data processing unit and a data transmission module. The first fixed female buckle 361, the second fixed female buckle 362 and the third fixed female buckle 363 are welded to the circuit board, and the three are further preferably positioned to form a triangle.

[0117] A first fixing male buckle 151 is provided on the first conductor 115, connected to the first fixing female buckle 361 on the control box; a second fixing male buckle 152 is provided on the second conductor, connected to the second fixing female buckle 362 on the control box; a third fixing male buckle 153 is provided in the middle area between the first conductor 115 and the second conductor 125, connected to the third fixing female buckle 363 on the control box. The first fixing male buckle 151, the second fixing male buckle 152, the third fixing male buckle 153, the first fixing female buckle 361, the second fixing female buckle 362 and the third fixing female buckle 363 are preferably one or more of magnetic buckles, buttons and electrode buckles.

[0118] In this embodiment, the training belt can be used to assist abdominal breathing, for example, it can be applied to postpartum recovery, and the pelvic floor muscles and rectus abdominis muscles can be restored through abdominal breathing to achieve the effect of fat reduction and plasticity.

[0119] When the user uses the training belt to assist abdominal breathing, two training belts in this embodiment are prepared, such as Figure 5As shown, the user wears these two training belts when performing abdominal breathing, which are recorded as the first training belt 10 and the second training belt 20. The flexible capacitive strain sensor in the first training belt 10 is set on the user's abdomen to monitor the fluctuation of the abdomen during abdominal breathing; the flexible capacitive strain sensor in the first training belt 20 is set on the user's chest to monitor the fluctuation of the chest during abdominal breathing. The specific method is as follows Figure 6-7 As shown, the following steps are included:

[0120] (1) Set the reference value C 腹部-屏气 , C 胸部-屏气 , C 腹部-吸气 , C 胸部-吸气 , C 腹部-呼气 , C 胸部-呼气 , such as Figure 7 As shown, it includes the following steps (1-0) to (1-7):

[0121] (1-0) The user wears the training belt and restarts the sensor;

[0122] The user holds his breath in a certain posture, and the output value of the flexible capacitive strain sensor set on the user's abdomen is recorded, denoted as C 腹部-屏气 , and record the output value of the flexible capacitive strain sensor set on the user's chest, denoted as C 胸部-屏气 ;

[0123] The user maintains the above posture and performs abdominal breathing, i.e., abdominal inhalation and abdominal exhalation. The capacitance value of the flexible capacitive strain sensor set on the user's abdomen during abdominal inhalation is recorded and recorded as C 腹部-吸气 , and record the capacitance value of the flexible capacitive strain sensor set on the user's chest, denoted as C 胸部-吸气 ; Record the capacitance value of the flexible capacitive strain sensor set on the user's abdomen during abdominal exhalation, denoted as C 腹部-呼气 , and record the capacitance value of the flexible capacitive strain sensor set on the user's chest, denoted as C 胸部-呼气 ;

[0124] (1-1) Comparison C 腹部-屏气 With C 腹部-吸气 , when C 腹部-屏气 <C 腹部-吸气 , it means that the abdomen bulges compared with holding the breath, and step (1-2) is executed; otherwise, it means that the abdomen shrinks or does not change compared with holding the breath, and step (1-0) is executed;

[0125] (1-2) Comparison C 腹部-屏气 With C 腹部-呼气 , when C 腹部-屏气 >C 腹部-呼气, indicating that the abdomen has contracted compared with holding the breath, then execute step (1-3); otherwise, indicating that the abdomen has bulged or has not changed compared with holding the breath, then execute step (1-0);

[0126] (1-3) Comparison C 腹部-吸气 With C 胸部-吸气 , when C 腹部-吸气 >C 胸部-吸气 , indicating that the bulge of the abdomen is larger than that of the chest, then execute step (1-4); otherwise, indicating that the bulge of the abdomen is smaller or equal to that of the chest, then execute step (1-0);

[0127] (1-4) Comparison C 腹部-呼气 With C 胸部-呼气 , when C 腹部-呼气 <C 胸部-呼气 , indicating that the contraction amplitude of the abdomen is larger than that of the chest, then execute step (2); otherwise, indicating that the contraction amplitude of the abdomen is smaller or equal to that of the chest, then execute step (1-0);

[0128] (2) The user performs abdominal breathing training, including the following steps (2-0) to (2-6):

[0129] (2-0) The user performs abdominal breathing, and the capacitance value of the flexible capacitive strain sensor set on the user's abdomen is recorded, denoted as c 腹部 , and record the capacitance value of the flexible capacitive strain sensor set on the user's chest, denoted as c 胸部 ;

[0130] (2-1) Comparison c 胸部 With C 胸部-吸气 , when c 胸部 <C 胸部-吸气 , indicating that 胸部-吸气 If the breast bulge is smaller than that of the chest, then execute step (2-2). Otherwise, it is the same as C. 胸部-吸气 If the breast bulge is greater or equal, perform steps (2-6);

[0131] (2-2) Comparison c 腹部 With C 腹部-屏气 , when c 腹部 >C 腹部-屏气 , indicating that the abdomen bulges compared with holding the breath, execute step (2-4), otherwise execute step (2-3);

[0132] (2-3) Comparison c 腹部 With C 腹部-屏气 , when c 腹部 <C 腹部-屏气 , indicating that the abdomen contracts compared to breath holding, and step (2-5) is performed, otherwise step (2-6) is performed;

[0133] (2-4) It is determined that the training state at this time is normal abdominal inhalation, and the terminal APP displays the inhalation related information; as a preferred embodiment, compared with c 腹部 With C 腹部-吸气 , when c 腹部 >C 腹部-吸气 , indicating that compared with the set abdominal inhalation value, the abdominal bulge amplitude is increased, judging that the effect of this abdominal inhalation is improved; conversely, indicating that compared with the set abdominal inhalation value, the abdominal bulge amplitude is reduced or unchanged, judging that the effect of this abdominal inhalation is not improved. As a further preferred embodiment, compared with c 腹部 With C 腹部-吸气 And contrast c 胸部 With C 胸部-吸气 , when c 腹部 >C 腹部-吸气 , and c 胸部 <C 胸部-吸气 , it means that compared with the set abdominal inhalation, the amplitude of abdominal bulge is significantly increased, and it can be judged that the effect of abdominal inhalation is significantly improved.

[0134] (2-5) It is determined that the training state at this time is normal abdominal exhalation, and the terminal APP displays the relevant information of inhalation; as a preferred embodiment, compared with c 腹部 With C 腹部-呼气 , when c 腹部 <C 腹部-呼气 , indicating that compared with the set abdominal exhalation value, the abdominal contraction degree increases, judging that the effect of this abdominal exhalation is improved; conversely, indicating that compared with the set abdominal exhalation value, the abdominal contraction amplitude decreases or remains unchanged, judging that the effect of this abdominal exhalation is not improved. As a further preferred embodiment, compared with c 腹部 With C 腹部-呼气 And contrast c 胸部 With C 胸部-呼气 , when c 腹部 <C 腹部-呼气 , and c 胸部 >C 胸部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is significantly increased, and it can be judged that the effect of abdominal exhalation is significantly improved.

[0135] (2-6) It is determined that the training status is wrong at this time, and the terminal APP reminds the patient to keep the chest unchanged when breathing.

[0136] In order to improve the efficiency of setting the reference value, in this embodiment, it is preferred that before step (1), the user is taught the correct abdominal breathing method, the user performs some abdominal breathing training, and then performs step (1).

[0137] The embodiments described above provide a detailed description of the technical solutions of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, supplements or similar substitutions made within the scope of the principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for assisting abdominal breathing using a training belt with a sensor, characterized in that: Two training belts are provided, and each training belt is provided with a sensor; The user wears the two training belts when performing abdominal breathing. The sensor in one training belt is set on the user's abdomen to monitor the rise and fall of the abdomen during abdominal breathing; the sensor in the other training belt is set on the user's chest to monitor the rise and fall of the chest during abdominal breathing; The method comprises the following steps: (1) Set the reference value Y 腹部-屏气 , Y 胸部-屏气 , Y 腹部-吸气 , Y 胸部-吸气 , Y 腹部-呼气 , Y 胸部-呼气 , comprising the following steps (1-0) to (1-7): (1-0) The user wears the training belt and restarts the two sensors; The user holds his breath in a certain posture, and the output value of the sensor set on the user's abdomen is recorded, denoted as Y 腹部-屏气 , and record the output value of the sensor set on the user's chest, recorded as Y 胸部-屏气 ; The user maintains the above posture and performs abdominal breathing, i.e., abdominal inhalation and abdominal exhalation. The output value of the sensor set on the user's abdomen during abdominal inhalation is recorded and recorded as Y 腹部-吸气 , and record the output value of the sensor set on the user's chest, recorded as Y 胸部-吸气 ; Record the output value of the sensor set on the user's abdomen during abdominal exhalation, recorded as Y 腹部-呼气 , and record the output value of the sensor set on the user's chest, recorded as Y 胸部-呼气 ; (1-1) According to Y 腹部-屏气 With Y 腹部-吸气 If it is determined that the abdomen bulges during abdominal inhalation compared with breath holding, then step (1-2) is executed, otherwise step (1-0) is executed; (1-2) According to Y 腹部-屏气 With Y 腹部-呼气 Determine that if the abdomen contracts during abdominal exhalation compared with breath holding, then execute step (1-3); otherwise, execute step (1-0); (1-3) According to Y 腹部-吸气 With Y 胸部-吸气 If it is determined that the bulge of the abdomen is larger than that of the chest, then step (1-4) is executed, otherwise step (1-0) is executed; (1-4) According to Y 腹部-呼气 With Y 胸部-呼气 If it is determined that the contraction amplitude of the abdomen is larger than that of the chest, then step (2) is executed; otherwise, step (1-0) is executed; (2) The user performs abdominal breathing training, including the following steps (2-0) to (2-6): (2-0) The user performs abdominal breathing, and the output value of the sensor set on the user's abdomen is recorded, denoted as y 腹部 , and record the output value of the sensor set on the user's chest, recorded as y 胸部 ; (2-1) According to y 胸部 With Y 胸部-吸气 Judgment, if you get the same as Y 胸部-吸气 If the breast bulge is smaller, then execute step (2-2); otherwise, execute step (2-6); (2-2) According to y 腹部 With Y 腹部-屏气 If the result is that the abdomen bulges compared with the breath holding, then execute step (2-4), otherwise execute step (2-3); (2-3) According to y 腹部 With Y 腹部-屏气 If it is determined that the abdomen contracts compared to holding the breath, then step (2-5) is executed, otherwise step (2-6) is executed; (2-4) Determine that the training state at this time is normal abdominal inhalation; (2-5) Determine that the training state at this time is normal abdominal exhalation; (2-6) It is determined that the training status is wrong at this time.

2. The method according to claim 1, characterized in that: In the step (2-4), according to y 腹部 With Y 腹部-吸气 Judgment, if you get the same as Y 腹部-吸气 In comparison, if the amplitude of the abdominal bulge increases, it is judged that the effect of this abdominal inhalation is improved; conversely, it is judged that the effect of this abdominal inhalation is reduced; As a preference, according to y 腹部 With Y 腹部-吸气 Judgment, if you get the same as Y 腹部-吸气 Compared with the previous study, the abdominal bulge is larger, and according to y 胸部 With Y 胸部-吸气 Judgment, if you get the same as Y 胸部-吸气 In comparison, the amplitude of chest bulge is reduced, which means that the effect of abdominal inhalation is significantly improved; otherwise, the effect of abdominal inhalation is reduced.

3. The method according to claim 1, characterized in that: In the step (2-5), according to y 腹部 With Y 腹部-呼气 Judgment, if you get the same as Y 腹部-呼气 In comparison, if the abdominal contraction amplitude increases, it is judged that the effect of this abdominal exhalation is improved; conversely, it is judged that the effect of this abdominal exhalation is reduced; As a preference, according to y 腹部 With Y 腹部-呼气 Judgment, if you get the same as Y 腹部-呼气 Compared with the above, the abdominal contraction amplitude is larger, and according to y 胸部 With Y 胸部-呼气 Judgment, if you get the same as Y 胸部-呼气 In comparison, the chest contraction amplitude is reduced, which indicates that the effect of this abdominal exhalation is significantly improved; On the contrary, it is judged that the effect of this abdominal exhalation is reduced.

4. The method according to claim 1, characterized in that: The step (1) further includes the following steps (1-5) and (1-6): (1-5) According to Y 胸部-屏气 With Y 胸部-吸气 If it is determined that the chest bulges or does not change during abdominal inhalation compared with breath holding, then step (1-6) is executed, otherwise step (1-0) is executed; (1-6) According to Y 胸部-屏气 With Y 胸部-呼气 If it is determined that the chest shrinks or does not change during abdominal exhalation compared to breath holding, then step (1-6) is executed; otherwise, step (1-0) is executed.

5. The method according to claim 1, characterized in that: If it is found through training that the user has basically mastered the correct breathing method, the output value Y of the sensor set on the user's chest may not be recorded when the user holds his breath in the step (1-0). 胸部-屏气 .

6. The method according to claim 1, characterized in that: The sensor is a displacement sensor, a capacitance sensor or a resistance sensor.

7. The method according to claim 1, characterized in that: When the sensor is a capacitive sensor, C is used instead of Y to indicate the capacitance value; In the step (1-1), compared with C 腹部-屏气 With C 腹部-吸气 , when C 腹部-屏气 <C 腹部-吸气 , it means that the abdomen is bulging, otherwise it means that the abdomen is shrinking or there is no change; In the step (1-2), compared with C 腹部-屏气 With C 腹部-呼气 , when C 腹部-屏气 >C 腹部-呼气 , it means the abdomen is contracted, otherwise it means the abdomen is bulging or there is no change; In the step (1-3), compared with C 腹部-吸气 With C 胸部-吸气 , when C 腹部-吸气 >C 胸部-吸气 , it means that the bulge of the abdomen is larger than that of the chest, otherwise it means that the bulge of the abdomen is smaller or equal to that of the chest; In the step (1-4), compared with C 腹部-呼气 With C 胸部-呼气 , when C 腹部-呼气 <C 胸部-呼气 , it means that the contraction amplitude of the abdomen is larger than that of the chest, otherwise it means that the contraction amplitude of the abdomen is smaller or equal to that of the chest; In the step (2-1), compare c 胸部 With C 胸部-吸气 , when c 胸部 <C 胸部-吸气 , then it means that 胸部-吸气 Compared with the chest, the bulge is smaller, which means that it is similar to C 胸部-吸气 The breast bulge is greater or equal to that of the chest; In the step (2-2) and step (2-3), compare c 腹部 With C 腹部-屏气 , when c 腹部 >C 腹部-屏气 , it means that the abdomen bulges compared with breath holding. 腹部 <C 腹部-屏气 , it means that the abdomen contracts compared with breath holding; In the step (2-4), compare c 腹部 With C 腹部-吸气 , when c 腹部 >C 腹部-吸气 , it means that compared with the set abdominal inhalation, the abdominal bulge increases, and it is judged that the effect of this abdominal inhalation is improved. Otherwise, it means that compared with the set abdominal inhalation, the abdominal bulge decreases or remains unchanged, and it is judged that the effect of this abdominal inhalation is not improved; In the step (2-5), compared with c 腹部 With C 腹部-呼气 , when c 腹部 <C 腹部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is increased, and it is judged that the effect of this abdominal exhalation is improved. Conversely, it means that compared with the set abdominal exhalation, the abdominal contraction amplitude is reduced or unchanged, and it is judged that the effect of this abdominal exhalation is not improved.

8. The method according to claim 1, characterized in that: When the sensor is a displacement sensor, L is used instead of Y to indicate the displacement value; In the step (1-1), compared with L 腹部-屏气 With L 腹部-吸气 , when L 腹部-屏气 <L 腹部-吸气 , it means that the abdomen is bulging, otherwise it means that the abdomen is shrinking or there is no change; In the step (1-2), compared with L 腹部-屏气 With L 腹部-吸气 , when L 腹部-屏气 >L 腹部-呼气 , it means the abdomen is contracted, otherwise it means the abdomen is bulging or there is no change; In the step (1-3), compared with L 腹部-吸气 With L 胸部-吸气 , when L 腹部-吸气 >L 胸部-吸气 , it means that the bulge of the abdomen is larger than that of the chest, otherwise it means that the bulge of the abdomen is smaller or equal to that of the chest; In the step (1-4), compared with L 腹部-呼气 With L 胸部-呼气 , when L 腹部-呼气 <L 胸部-呼气 , it means that the contraction amplitude of the abdomen is larger than that of the chest, otherwise it means that the contraction amplitude of the abdomen is smaller or equal to that of the chest; In the step (2-1), compared with l 胸部 With L 胸部-吸气 , when l 胸部 <L 胸部-吸气 , then it means that 胸部-吸气 Compared with the chest, the bulge is smaller, which means that it is similar to L 胸部-吸气 The breast bulge is greater or equal to that of the chest; In the step (2-2) and step (2-3), compare l 腹部 With L 腹部-屏气 , when l 腹部 >L 腹部-屏气 , it means that the abdomen bulges compared with breath holding. 腹部 <L 腹部-屏气 , it means that the abdomen contracts compared with breath holding; In the step (2-4), compared with l 腹部 With L 腹部-吸气 , when l 腹部 >L 腹部-吸气 , it means that compared with the set abdominal inhalation, the abdominal bulge increases, and it is judged that the effect of this abdominal inhalation is improved. Otherwise, it means that compared with the set abdominal inhalation, the abdominal bulge decreases or remains unchanged, and it is judged that the effect of this abdominal inhalation is not improved; In the step (2-5), compared with l 腹部 With L 腹部-呼气 , when l 腹部 <L 腹部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction degree increases, and it is judged that the effect of this abdominal exhalation is improved. Conversely, it means that compared with the set abdominal exhalation, the abdominal contraction amplitude decreases or remains unchanged, and it is judged that the effect of this abdominal exhalation is not improved.

9. The method according to claim 1, characterized in that: When the sensor is a resistance sensor, R is used instead of Y to indicate the resistance value; In the step (1-1), R 腹部-屏气 With R 腹部-吸气 , when R 腹部-屏气 <R 腹部-吸气 , it means that the abdomen is bulging, otherwise it means that the abdomen is shrinking or there is no change; In the step (1-2), R 腹部-屏气 With R 腹部-吸气 , when R 腹部-屏气 >R 腹部-呼气 , it means the abdomen is contracted, otherwise it means the abdomen is bulging or there is no change; In the step (1-3), R 腹部-吸气 With R 胸部-吸气 , when R 腹部-吸气 >R 胸部-吸气 , it means that the bulge of the abdomen is larger than that of the chest, otherwise it means that the bulge of the abdomen is smaller or equal to that of the chest; In the step (1-4), compare R 腹部-呼气 With R 胸部-呼气 , when R 腹部-呼气 <R 胸部-呼气 , it means that the contraction amplitude of the abdomen is larger than that of the chest, otherwise it means that the contraction amplitude of the abdomen is smaller or equal to that of the chest; In the step (2-1), the comparison of r 胸部 With R 胸部-吸气 , when r 胸部 <R 胸部-吸气 , then it means that 胸部-吸气 Compared with the chest, the bulge is smaller, which means that it is similar to R 胸部-吸气 The breast bulge is greater or equal to that of the chest; In the step (2-2) and step (2-3), compare r 腹部 With R 腹部-屏气 , when r 腹部 >R 腹部-屏气 , it means that the abdomen bulges compared with breath holding. 腹部 <R 腹部-屏气 , it means that the abdomen contracts compared with breath holding; In the step (2-4), the comparison of r 腹部 With R 腹部-吸气 , when r 腹部 >R 腹部-吸气 , it means that compared with the set abdominal inhalation, the abdominal bulge increases, and it is judged that the effect of this abdominal inhalation is improved. Otherwise, it means that compared with the set abdominal inhalation, the abdominal bulge decreases or remains unchanged, and it is judged that the effect of this abdominal inhalation is not improved; In the step (2-5), the comparison of r 腹部 With R 腹部-呼气 , when r is obtained 腹部 <R 腹部-呼气 , it means that compared with the set abdominal exhalation, the abdominal contraction degree increases, and it is judged that the effect of this abdominal exhalation is improved. Conversely, it means that compared with the set abdominal exhalation, the abdominal contraction amplitude decreases or remains unchanged, and it is judged that the effect of this abdominal exhalation is not improved.

10. The method according to claim 1, characterized in that: The two training belts have the same structure, and the sensors therein have the same structure.

11. The method according to any one of claims 1 to 10, characterized in that: In the step (2-4), it is determined that the training state at this time is normal abdominal inhalation, and the inhalation-related information is displayed on the terminal APP; Preferably, in step (2-5), it is determined that the training state at this time is normal abdominal exhalation, and the exhalation-related information is displayed on the terminal APP; Preferably, in step (2-6), it is determined that the training state is wrong at this time, and the terminal APP reminds the patient to keep the chest unchanged when breathing.

12. The method according to any one of claims 1 to 10, characterized in that: The sensor is a flexible capacitive strain sensor, which has a stacked structure and includes a first packaging layer, a first conductive layer, a dielectric layer, a second conductive layer and a second packaging layer in sequence, and the first packaging layer, the first conductive layer, the dielectric layer, the second conductive layer and the second packaging layer all have deformation capability; A first limiting portion is provided between the first packaging layer and the first conductive layer; A second limiting portion is provided between the second packaging layer and the second conductive layer; Among the dielectric layer, the first conductive layer, the first limiting portion and the first packaging layer, the first limiting portion has the largest tensile strength; Among the dielectric layer, the second conductive layer, the second limiting portion and the second packaging layer, the second limiting portion has the largest tensile strength.

13. The method according to claim 12, characterized in that: Along the stretching direction, stretching parts are arranged at both ends of the flexible capacitive strain sensor, which are recorded as a first stretching part and a second stretching part; One end of the first encapsulation layer and one end of the second encapsulation layer are directly connected to the first stretching portion; the other end of the first encapsulation layer and the other end of the second encapsulation layer are directly connected to the second stretching portion; The first limiting part, the first conductive layer, the dielectric layer, the second conductive layer and the two ends of the second limiting part are not directly connected to the first stretching part and the second stretching part. When the first stretching part and the second stretching part are stretched, the first packaging layer and the second packaging layer are directly stretched and deformed, driving the first limiting part, the first conductive layer, the dielectric layer, the second conductive layer and the second limiting part to deform.

14. The method according to claim 13, characterized in that: The tensile modulus of the first conductive layer is smaller than the tensile modulus of the first limiting portion, and the tensile modulus of the first limiting portion is smaller than the tensile modulus of the first encapsulation layer; The tensile modulus of the second conductive layer is smaller than the tensile modulus of the second limiting portion, and the tensile modulus of the second limiting portion is smaller than the tensile modulus of the second encapsulation layer; Preferably, the tensile modulus of the dielectric layer is smaller than the tensile modulus of the first conductive layer; Preferably, the tensile modulus of the dielectric layer is smaller than the tensile modulus of the second conductive layer.

15. The method according to claim 13, characterized in that: The first limiting portion is an elongated structure, and its length direction is along the stretching direction; The second limiting portion is an elongated structure, and its length direction is along the stretching direction; Preferably, the cross-sectional diameter of the first limiting portion is not greater than 10 mm, more preferably not greater than 2 mm, and most preferably not greater than 1 mm; Preferably, the cross-sectional diameter of the second limiting portion is no greater than 10 mm, more preferably no greater than 2 mm, and most preferably no greater than 1 mm.

16. The method of claim 12, wherein: The first limiting portion is provided with a pleated structure, and along with the stretching, the pleated structure is stretched and unfolded; The second limiting portion is provided with a pleated structure, and the pleated structure is stretched and expanded along with the stretching; Preferably, along the stretching direction, the first limiting portion is undulating; Preferably, along the stretching direction, the second limiting portion is undulating.

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