CN110123327B - Respiration detection device, mattress and respiration detection method - Google Patents

Abstract

The application discloses a respiration detection device, a mattress and a respiration detection method, wherein the device comprises a detection device body, a plurality of contact microphones and a signal processing unit, the contact microphones are distributed on the detection device body and are respectively connected with the signal processing unit in a signal manner, the contact microphones are distributed according to a first preset distribution mode, and the distance between any two adjacent contact microphones is larger than a first distance threshold and smaller than a second distance threshold. The breathing sound information can be accurately detected under the condition of unbundling wearing, so that the accuracy of evaluating the breathing condition of the user is improved.

Description

Respiration detection device, mattress and respiration detection method

Technical Field

The application relates to the technical field of sensing, in particular to a respiration detection device, a mattress and a respiration detection method.

Background

With the continuous development of social economy, the population life is continuously improved, the proportion of the old population to the total population is continuously increased, the daily nursing requirements for the old are higher and higher, and particularly, the sleeping and breathing conditions of the old need to be monitored at night. In addition, people are also paying more attention to the health of their own respiratory systems. Some products on the market can detect the breathing condition in the sleeping process at present, but the products need to be bound and worn on the body of a user, so that the sleeping comfort level of the user is affected, and the user experience is poor. Still other products use displacement sensors to continuously detect displacement changes caused by respiratory activity, and then analyze respiratory rate and respiratory effort according to the displacement change information. However, the displacement sensor is used for breath detection, breath sounds in the breath process cannot be collected, and careful analysis of the breath sounds cannot be performed. When a user experiences breathing abnormality such as cough, snore, wheeze, and dry-heat during sleep, the breathing abnormality cannot be estimated by the displacement sensor. For example, when a user coughs or turns over, the displacement sensor can detect larger displacement changes, and the coughs or turns over can not be distinguished easily by the displacement changes alone; snoring, wheezing, dry-touch and the like are more difficult to detect from displacement changes.

Disclosure of Invention

The application aims to provide a breath detection device, a mattress and a breath detection method, and aims to solve the problem that breath sounds cannot be accurately detected under the condition of unbundling wearing to detect breath in the sleeping process in the prior art.

The application provides a respiration detection device which comprises a detection device body, a plurality of contact microphones and a signal processing unit, wherein the contact microphones are distributed on the detection device body and are respectively connected with the signal processing unit in a signal mode, the contact microphones are distributed according to a first preset distribution mode, and the distance between any two adjacent contact microphones is larger than a first distance threshold and smaller than a second distance threshold.

Further, the breath detection device further comprises a transmission component, and when the solid object is pressed downwards on the transmission component along the upper surface of the transmission component and the pressing force is smaller than the designated force, the transmission component limits the sound collecting surface of the contact microphone to be in direct or indirect contact with the solid object.

Further, the transmission assembly comprises a plurality of first transmission parts, each first transmission part is respectively arranged around each contact microphone, and each first transmission part is not contacted with each contact microphone; when the pressing force is not acted, the upper surface of the first transmission part is higher than the sound collecting surface of the contact microphone.

Further, all or part of the first transfer portion is made of an elastic material.

Further, the transmission assembly comprises a plurality of second transmission parts, and each second transmission part is buckled above each contact microphone respectively; when the pressing force is not acted, the second transmission part is not contacted with the sound collecting surface of the contact microphone.

The application also provides a respiration detection mattress, which comprises a mattress body and the respiration detection device, wherein the respiration detection device is arranged in a first appointed area of the mattress body.

The application also provides a respiration detection mattress, which comprises the respiration detection device, wherein the detection device body is used as a mattress body, and a plurality of contact microphones are arranged in a second designated area of the mattress body according to a second preset arrangement mode.

Further, each contact microphone is electrically connected with the signal processing unit through an elastic wire.

The application also provides a respiration detection method, which comprises the following steps of:

respectively acquiring sound information of each contact microphone;

extracting breath sound information from each of the sound information;

analyzing the breath sound information to obtain a breath parameter, wherein the breath parameter at least comprises a breath frequency, a breath amplitude and a breath dead time.

Further, after the step of extracting breath sound information from each of the sound information, the method includes:

and determining the human body coverage area according to the position of the contact microphone corresponding to the breathing sound information.

Further, after the step of analyzing the breath sound information to obtain the breath parameter, the method includes:

acquiring intervention action information returned based on the breathing parameters;

and executing the intervention action corresponding to the intervention action information in the human body coverage area.

The application has the beneficial effects that:

According to the respiration detection device, the mattress and the respiration detection method, the plurality of contact microphones are arranged on the detection device body, when a user uses the respiration detection device, the respiration detection device is pressed below the body, the body is contacted with the plurality of contact microphones, and in the respiration process of the user, audio vibration generated by the body is conducted to the contact microphones, so that each contact microphone contacted with the body can accurately detect respiration sound information generated by respiration of the user and is not influenced by environmental noise. The breath detection device can accurately detect breath sound information under the condition of unbundling wearing, thereby being beneficial to improving the evaluation accuracy of the user's breath condition.

Drawings

FIG. 1 is a schematic cross-sectional view of a breath detection device according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a breath detection device according to another embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of the breath detection device of FIG. 2 in use;

FIG. 4 is a schematic cross-sectional view of a breath detection device according to another embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of the breath detection device of FIG. 4 in use;

FIG. 6 is a schematic cross-sectional view of a respiration detection mattress according to an embodiment of the present application;

FIG. 7 is a schematic plan view of a respiration detection mattress according to an embodiment of the present application;

FIG. 8 is a schematic cross-sectional view of a respiration detection mattress according to another embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a respiration detection mattress according to another embodiment of the present application;

Fig. 10 is a flowchart of a respiration detection method according to an embodiment of the application.

Reference numerals:

1: a detecting device body; 2: a contact microphone; 3: a signal processing unit; 4: a wire; 5: a solid; 501: a first transfer section; 502: a second transfer section; 6: a mattress body; 7: an upper fabric.

The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

Referring to fig. 1, the respiration detection device provided by the application comprises a detection device body 1, a plurality of contact microphones 2 and a signal processing unit 3, wherein the contact microphones 2 are distributed on the detection device body 1, each contact microphone 2 is respectively connected with the signal processing unit 3 in a signal manner, the contact microphones 2 are arranged according to a first preset arrangement manner, and the distance between any two adjacent contact microphones 2 is larger than a first distance threshold and smaller than a second distance threshold.

In this embodiment, the detecting device body 1 is used for carrying and fixing a plurality of contact microphones 2. Unlike the conventional air microphone, the contact microphone 2 senses the audio vibration by contacting with a solid object, and is hardly affected by the air vibration, i.e., is insensitive to the air sound wave, and is sensitive to the sound propagated in the solid and liquid. Since the contact microphone 2 cannot pick up air vibration, it can be free from environmental noise. The touch microphone 2 used in the embodiment of the present application is manufactured by adopting the prior art, the structure and model of the touch microphone are not limited in detail, and any component capable of sensing audio vibration by contacting with a solid object should be included in the scope of the touch microphone 2 of the present application. The above-mentioned signal processing unit 3 is for receiving sound information of each contact microphone 2, respectively. Further, the signal processing unit 3 can store the sound information of each contact microphone 2 for analysis by subsequent medical staff; the signal processing unit 3 can also send sound signals to a remote medical center, and personnel in the remote medical center can evaluate the breathing condition in real time according to the breathing parameters; the signal processing unit 3 may further perform signal processing on the sound signal according to a preset processing procedure, and extract breathing sound information from the sound information, specifically, the breathing sound information in the embodiment of the present application is preferably lung sound information, and during breathing, as the air flows into and out of the alveoli, tension and relaxation of the alveoli wall alternate, elasticity of the alveoli changes, and air flow vibrates to generate lung sound. The lung sound of the user lying on it can be accurately acquired by the contact microphone 2, and the environmental noise is eliminated. The signal processing unit 3 further analyzes the breathing parameters including at least the breathing frequency, the breathing amplitude and the breathing dead time from the extracted breathing sound information. The breathing parameters may be used by the user or caretaker to assess the breathing situation and to further perform a corresponding intervention action based on the assessed breathing situation.

The first preset arrangement manner is arranged according to a specific use scenario, specifically, on the detecting device body 1, the plurality of contact microphones 2 may be arranged in an array, for example, may be arranged in a plurality of rows and a plurality of columns, a certain distance is formed between any two contact microphones 2, the first distance threshold and the second distance threshold may be set according to a specific use situation, for example, the first distance threshold is set to 5cm, so that sound signals received by two adjacent contact microphones 2 can be distinguished; the second distance threshold is set to 20cm so that it is ensured that the human body is pressed against at least one touch microphone 2 when lying on his side.

The contact microphones 2 may be connected to the signal processing unit 3 via wires 4, or may be connected to each other via wireless signal transmission. In order to more intuitively express the signal connection relationship between the respective contact microphones 2 and the signal processing unit 3, the present application is illustrated with a schematic diagram of the signal connection through the wires 4.

According to the respiration detection device, the plurality of contact microphones 2 are arranged on the detection device body 1, when a user uses the respiration detection device, the respiration detection device is pressed below the body, the body is contacted with the plurality of contact microphones 2, and in the respiration process of the user, audio vibration generated by the body is conducted to the contact microphones 2, so that each contact microphone 2 contacted with the body can accurately detect respiration sound information generated by respiration of the user and is not influenced by environmental noise. The breath detection device can accurately detect breath sound information under the condition of unbundling wearing, thereby being beneficial to improving the evaluation accuracy of the user's breath condition.

Referring to fig. 2 to 5, in an embodiment, the respiration detection device further includes a transmission component, and when the solid object is pressed down on the transmission component along the upper surface of the transmission component and the pressing force is smaller than the specified force, the transmission component limits the sound collecting surface of the contact microphone 2 to directly or indirectly contact with the solid object.

In this embodiment, the sound collecting surface of the contact microphone 2 is a surface of the contact microphone 2 for collecting the sound signal. When a solid object 5 (such as a user's body) is pressed on the respiration detection device, a downward pressing force generated by the respiration detection device is firstly applied to the transmission component, and the transmission component deforms or displaces when being pressed; when the pressing force is smaller than the designated force, the transmission component limits the sound collecting surface of the contact microphone 2 to be in direct or indirect contact with the solid object 5; when the pressing force is greater than the prescribed force, the transmission member is compressed or depressed to a prescribed position, and the sound collecting surface of the contact microphone 2 is in direct or indirect contact with the solid object 5. Specifically, when the respiration detection device is not under the action of the pressing force, the position of the upper surface of the transmission component is taken as an initial position, at the moment, the transmission component limits the sound collecting surface of the contact microphone to be contacted with external solid objects, the contact object on the sound collecting surface of the contact microphone 2 is air, and the contact microphone 2 cannot collect sound signals; when the breath detection device receives a pressing force, the transmission assembly deforms or displaces, the upper surface of the transmission assembly of the pressed area is sunken along the pressing force acting direction, and when the pressing force is larger than a specified force, the sound collecting surface of the contact microphone 2 is directly or indirectly contacted with the solid object 5 (such as a user body), and at the moment, the contact microphone 2 can collect sound signals sent by the solid object 5 above (such as the user body); when the solid object 5 (such as the body of the user) is separated from the respiration detection device, that is, the pressing force applied to the respiration detection device is removed, the upper surface of the transmission assembly is restored to the initial position, and at this time, the contact object on the sound collecting surface of the contact microphone 2 becomes air again, and the contact microphone 2 cannot collect the sound signal again. In the embodiment, the transmission component is arranged in the respiration detection device, so that only the contact microphone 2 corresponding to the pressed area can collect the sound signal; the contact microphone 2 corresponding to the unpressurized area is still isolated from the external environment by air, so that the sound signals of the environment can not be collected; for the specific use case where the solid object 5 is the body of the user, the sound signal is mainly a breathing sound signal of the user. The breath detection device of the embodiment can exclude the influence of environmental noise as much as possible, and is beneficial to accurately collecting target sound signals (such as breath sound signals of users).

Referring to fig. 2 and 3, in one embodiment, the transmission assembly includes a plurality of first transmission parts 501, each of the first transmission parts 501 is disposed around each of the contact microphones 2, and each of the first transmission parts 501 is not in contact with each of the contact microphones 2; when not acted by the pressing force, the upper surface of the first transmission part 501 is higher than the sound collecting surface of the contact microphone 2.

In this embodiment, the direction of the pressing force is downward along the upper surface of the first transmitting portion 501, when the respiration detecting device is not under the action of the pressing force, the upper surface of each first transmitting portion 501 is higher than the sound collecting surface of the contact microphone 2, the position of the upper surface of the first transmitting portion 501 at this time is taken as the initial position, the contact on the sound collecting surface of the contact microphone 2 is air, and the contact microphone 2 cannot collect the sound signal. When the respiration detecting device receives the pressing force, the first transmitting portions 501 of the pressing area are pressed and compressed downwards, and when the pressing force is greater than the first designated force, the upper surfaces of the first transmitting portions 501 corresponding to the pressing area are sunk to the position flush with the sound collecting surface of the touch microphone 2, as shown in fig. 3, the four first transmitting portions 501 of the left pressing area are compressed to the position flush with the touch microphone 2, at this time, the solid object 5 (such as the body of the user) is in contact with the touch microphone 2, and then the touch microphone 2 can collect the sound signal emitted by the solid object 5 above (such as the body of the user). In the non-pressed region, as shown in fig. 3, the two first transmission parts 501 on the right side are not pressed, and the upper surfaces of the two first transmission parts 501 are located at a position higher than the sound collecting surface of the contact microphone 2, so that the contact microphone 2 in the non-pressed region on the far right side in fig. 3 is in direct contact with air, and no sound signal is collected. For the specific use case where the solid object 5 is the body of the user, the sound signal is mainly a breathing sound signal of the user. The breath detection device of the embodiment can exclude the influence of environmental noise as much as possible, and is beneficial to accurately collecting target sound signals (such as breath sound signals of users).

In one embodiment, all or part of the first transmitting portion 501 is made of an elastic material.

In this embodiment, the first transmitting portion 501 may be made of a material having elasticity in the longitudinal direction, such as a spring, an elastic sponge, or the like; it is also possible to use a mixture of elastic material and rigid material, for example a structure with springs at the bottom and plastic at the top, or a structure with springs in the middle and plastic at the top and bottom. The first transmission portion 501 has a characteristic of contracting when pressed and rebounding when the pressure is released.

Referring to fig. 4 and 5, in one embodiment, the transmission assembly includes a plurality of second transmission parts 502, and each second transmission part 502 is respectively fastened above each contact microphone 2; when the pressing force is not applied, the second transmitting portion 502 is not in contact with the sound collecting surface of the contact microphone 2.

In this embodiment, the direction of the pressing force is downward along the upper surface of the second transmitting portion 502. The second transmitting part 502 is configured as a cover with a raised middle part, and is buckled above the contact microphone 2. When the respiration detecting device is not under pressure, the second transmitting portion 502 is not in contact with the sound collecting surface of the contact microphone 2, the position of the upper surface of the second transmitting portion 502 is taken as the initial position, the contact on the sound collecting surface of the contact microphone 2 is air, and the contact microphone 2 does not collect sound signals. When the respiration detecting device receives the pressing force, the second transmitting portions 502 of the pressing area are pressed and sunk downward, and when the pressing force is greater than the second designated force, the upper surfaces of the second transmitting portions 502 corresponding to the pressing area are sunk to be in contact with the sound collecting surface of the corresponding contact microphone 2, as shown by the two second transmitting portions 502 of the left pressing area in fig. 5, the upper surfaces of the two second transmitting portions 502 are pressed down to be in contact with the contact microphone 2, at this time, the solid object 5 (such as a user body) is in contact with the contact microphone 2 through the second transmitting portions 502, and the contact microphone 2 can also collect the sound signal emitted by the solid object 5 above (such as the user body). In the non-pressed area, as shown in fig. 5, the upper surface of the second transmission part 502 is at the initial position, and the contact microphone 2 in the non-pressed area on the right side in fig. 5 is in direct contact with air, so that no sound signal is collected. For the specific use case where the solid object 5 is the body of the user, the sound signal is mainly a breathing sound signal of the user. The breath detection device of the embodiment can exclude the influence of environmental noise as much as possible, and is beneficial to accurately collecting target sound signals (such as breath sound signals of users).

Referring to fig. 6 and 7, the present application further provides a respiration detection mattress, which comprises a mattress body 6 and the respiration detection device, wherein the respiration detection device is disposed in a first designated area of the mattress body.

In this embodiment, the position of the first specified area is: in a vertical direction (as in fig. 6), near the upper surface of the mattress body 6; in the horizontal direction (as in fig. 7), the upper body is located in the region of the mattress body 6 where a normal human body lies. The respiration detection means is provided in the above-mentioned designated area in the mattress body 6, so that when the user lies on the mattress body 6, the respiration detection mattress of the present embodiment can monitor the breathing sound of the user lying thereon through the contact microphone 2.

The application also provides a respiration detection mattress, which comprises the respiration detection device, wherein the detection device body is used as a mattress body 6, and a plurality of contact microphones 2 are arranged in a second designated area of the mattress body 6 according to a second preset arrangement mode.

In this embodiment, the plurality of contact microphones 2 are directly disposed on the mattress body 6, and the second designated area is the position of the upper body of the lying area. Each of the contact microphones 2 is disposed in a position where the upper body of the lying area of the human body is located, and the separation distance between the contact microphones 2 is greater than the first distance threshold and less than the second distance threshold, for example, the first distance threshold is set to 5cm, so that sound signals received by two adjacent contact microphones 2 can be distinguished; the second distance threshold is set to 20cm so that it is ensured that the human body is pressed against at least one touch microphone 2 when lying on his side.

Referring to fig. 8, in another embodiment, the respiration detecting device in the mattress further includes a transmission assembly, where the transmission assembly includes a plurality of first transmission parts 501. The mattress body 6 is covered with an upper layer of fabric 7. When no user lies on the mattress, the upper surface of the first transfer part 501 is supported at the bottom of the upper fabric 7, so that the upper part of the touch microphone 2 is separated from the external environment by air, thereby eliminating the interference of the environmental noise. When a user lies on the mattress, the first transmitting part 501 of the compression area is compressed, so that the sound collecting surface of the contact microphone 2 is in contact with the upper fabric 7, and thus the breathing sound in the body of the user can be transmitted to the corresponding contact microphone 2 through the upper fabric 7, thereby accurately monitoring the breathing sound of the user lying thereon.

Referring to fig. 9, in another embodiment, the respiration detecting device in the mattress further includes a transmission assembly, where the transmission assembly includes a plurality of second transmission portions 502. The mattress body 6 is covered with an upper layer of fabric 7. When no user lies on the mattress, the second transmission part 502 is buckled above the contact microphone 2, and the upper surface of the second transmission part 502 is contacted with the upper fabric 7, so that the upper part of the contact microphone 2 is separated from the external environment by air, and the interference of environmental noise is eliminated. When the user lies on the mattress, the second transmitting portion 502 of the pressed area is pressed down to be in contact with the sound collecting surface of the contact microphone 2. Thus, the breathing sounds in the body of the user can be transmitted to the corresponding contact microphone 2 through the upper fabric 7 and the second transmitting part 502 in sequence, so that the breathing sounds of the user lying thereon can be accurately monitored.

In the respiration detection mattress, a respiration detection device is arranged in a designated area of a mattress body 6, wherein a plurality of contact microphones 2 are arranged on the detection device body 1, when a user uses the respiration detection device, the respiration detection device is pressed below the body, the body is contacted with the plurality of contact microphones 2, and during the respiration process of the user, audio vibration generated by the body is conducted to the contact microphones 2, so that each contact microphone 2 contacted with the body can accurately detect respiration sound information generated by the respiration of the user and is not influenced by environmental noise. The breath detection mattress can accurately detect breath sound information under the condition of unbundling wearing, thereby being beneficial to improving the evaluation accuracy of the user's breath condition.

In one embodiment, each of the contact microphones 2 is electrically connected to the signal processing unit 3 through an elastic wire.

In this embodiment, the wires 4 may be elastic wires and routed within the mattress body 6. When a human body lies on the mattress, the elastic wires stretch along with the deformation of the mattress body 6. The wires 4 may be routed vertically downward from the bottom of each contact microphone 2 from the interior of the mattress body 6 for a length and then horizontally until connected to the signal processing unit 3.

Referring to fig. 10, the present application further provides a respiration detection method, using the respiration detection mattress, comprising:

s1, respectively acquiring sound information of each contact microphone 2;

S2, extracting breathing sound information from the sound information;

s3, analyzing the breath sound information to obtain breathing parameters, wherein the breathing parameters at least comprise breathing frequency, breathing amplitude and breathing dead time.

In this embodiment, in the step S1, when the user lies on the respiration detection mattress, the touch microphone 2 corresponding to the lying area of the human body receives sound information, where the sound information includes the breathing sound information, and other sounds made by the user, such as snoring sounds, cough sounds, dream sounds, and the like.

In the step S2, the breathing sound information is a continuous sound information with a certain frequency (e.g. 0.15 hz-0.5 hz) and amplitude; the other sound information is sound information which has irregular frequency and amplitude and does not last. Therefore, the sound information with the designated frequency (such as 0.15 Hz-0.5 Hz) can be extracted from the sound information to be used as breathing sound information. Further, the sound information after the breathing sound information is removed may be used as the additional sound information.

In the step S3, the method for analyzing the breathing information may be as follows: comparing breath sound information received by different contact microphones, and selecting the breath sound information with the strongest signal strength as target breath sound information; analyzing the target breath sound information to obtain breathing parameters. The step of analyzing the target breath sound information comprises the following steps: converting the breathing sound information into digital information or waveform information to obtain breathing frequency and breathing amplitude; and calculating the breath dead time according to the expiration stop time of the previous breath and the inspiration starting time of the adjacent next breath.

Another method may also be employed: and analyzing the breathing sound information received by each contact microphone respectively to obtain breathing parameters. The step of analyzing the breath sound information respectively comprises the following steps: converting each breathing sound information into digital information or waveform information respectively to obtain the breathing frequency and the breathing amplitude corresponding to each breathing sound information; calculating the breath dead time corresponding to each breath sound information according to the expiration stop time of the previous breath and the inspiration starting time of the adjacent next breath; and averaging the respiratory frequency and the respiratory dead time corresponding to each respiratory sound information, and taking the maximum value from the respiratory amplitudes corresponding to each respiratory sound information to obtain the respiratory amplitude through the analysis.

The breathing parameters are beneficial to evaluating the breathing condition of the user and monitoring the abnormal breathing phenomenon of the user in the sleeping process. Further, the additional sound information can be manually analyzed to analyze whether the user has cough, snore, asthma and other diseases.

Furthermore, the breathing sound information can be stored for analysis by subsequent medical staff; or the breathing sound information can be directly sent to a target receiving object, such as a remote medical care center, so that remote medical staff can perform online real-time analysis and evaluation.

According to the breath detection method, in the breath process of a user, audio vibration generated by the body is conducted to the contact microphones 2, so that sound information of each contact microphone 2 can be obtained respectively, breath sound signals are extracted from the sound information, finally the breath sound information is stored, and the breath sound information is analyzed to obtain breath parameters, wherein the breath parameters at least comprise breath frequency, breath amplitude and breath dead time; therefore, the breathing sound information can be accurately detected for a long time, and the breathing condition of the user can be accurately estimated.

In one embodiment, after the step S2 of extracting breath sound information from the sound information, the method includes:

And S4, determining a human body coverage area according to the position of the contact microphone 2 corresponding to the breathing sound information.

In this embodiment, in the step S4, since the pressure is generated on the mattress body 6 by the lying area of the human body, the contact microphone 2 in the lying area of the human body can collect breathing sound information of the human body, and the contact microphone 2 without the lying area of the human body cannot collect breathing sound information of the human body. Therefore, the area corresponding to the contact microphone 2 that detects the breathing sound information is the coverage area of the human body, specifically, the coverage area of the upper body of the human body.

Further, when the plurality of contact microphones 2 monitor the breath sound information, the signal intensities of the breath sound information detected by the plurality of contact microphones 2 are compared, and the position of the contact microphone 2 corresponding to the breath sound information with the strongest signal intensity is taken as the lung position of the human body. The embodiment can accurately position the lying area of the human body.

In one embodiment, after the step S3 of analyzing the breath sound information to obtain the breath parameter, the method includes:

s5, acquiring intervention action information returned based on the breathing parameters;

S6, executing the intervention action corresponding to the intervention action information in the human body coverage area.

In this embodiment, in the step S5, the intervention action information includes, for example, a sound reminding information, a mattress vibration action information, etc., for reminding the user sleeping on the mattress to adjust the breathing state. The intervention action information comprises preset intervention actions corresponding to breathing parameters. In addition, the respiratory parameters can also be sent to a remote medical center, and medical center personnel evaluate the respiratory conditions according to the respiratory parameters, set intervention action information according to the evaluation result and send the intervention action information to a controller of the respiratory detection mattress.

In the step S6, a corresponding intervention operation is performed in the human body coverage area, for example, a sound alert is sent, or vibration is performed at a designated position of the bed body. Thereby reminding the user in sleep state that the breathing state needs to be adjusted.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the application.

Claims (8)

1. The respiration detection device is characterized by comprising a detection device body, a plurality of contact microphones and a signal processing unit, wherein the contact microphones are distributed on the detection device body and are respectively connected with the signal processing unit in a signal mode, the contact microphones are distributed according to a first preset distribution mode, and the distance between any two adjacent contact microphones is larger than a first distance threshold and smaller than a second distance threshold;

the breath detection device further comprises a transmission component, when a solid object is pressed downwards on the transmission component from the upper surface of the transmission component and the pressing force is smaller than a specified force, the transmission component limits the sound collecting surface of the contact microphone to be in direct or indirect contact with the solid object;

the transmission assembly comprises a plurality of first transmission parts, each first transmission part is respectively arranged around each contact microphone, and each first transmission part is not contacted with each contact microphone; when the pressing force is not acted, the upper surface of the first transmission part is higher than the sound collecting surface of the contact microphone;

the transmission assembly comprises a plurality of second transmission parts, and each second transmission part is respectively buckled above each contact microphone; when the pressing force is not acted, the second transmission part is not contacted with the sound collecting surface of the contact microphone.

2. The breath detection device according to claim 1, wherein all or part of the first transfer portion is made of an elastic material.

3. A breath detection mattress comprising a mattress body and the breath detection device of any of claims 1-2, the breath detection device being disposed within a first designated area of the mattress body.

4. A respiration detection mattress, characterized by comprising the respiration detection device according to any one of claims 1-2, wherein the detection device body is used as a mattress body, and a plurality of contact microphones are arranged in a second designated area of the mattress body according to a second preset arrangement mode.

5. The breath detection mattress of claim 4, wherein each of the contact microphones is electrically connected to the signal processing unit by a flexible wire, respectively.

6. A respiration detection method using the respiration detection mattress according to any one of claims 3 to 5, comprising:

respectively acquiring sound information of each contact microphone;

extracting breath sound information from each of the sound information;

analyzing the breath sound information to obtain a breath parameter, wherein the breath parameter at least comprises a breath frequency, a breath amplitude and a breath dead time.

7. The breath detection method according to claim 6, wherein after the step of extracting breath sound information from each of the sound information, comprising:

and determining the human body coverage area according to the position of the contact microphone corresponding to the breathing sound information.

8. The breath detection method according to claim 7, wherein after the step of analyzing the breath sound information to obtain a breath parameter, the method comprises:

acquiring intervention action information returned based on the breathing parameters;

and executing the intervention action corresponding to the intervention action information in the human body coverage area.