CN111759140A - Device layout structure and regulation and control method based on perception ear pillow - Google Patents
Device layout structure and regulation and control method based on perception ear pillow Download PDFInfo
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Abstract
The invention relates to a device layout structure and a regulation and control method based on a perception ear pillow, which are used for designing a special state position where a human body lies on the side and a single ear is placed in an ear hole of an ear pillow body, wherein pressure and respiration sensors are distributed on two sides of the ear hole on the surface of the ear pillow body, the left-right lying state of the human body is calculated and judged, and the type and volume of a played audio are selected by calculating the respiration intensity. The left side and the right side of the ear pillow body are slightly bulged, high speakers are distributed in the ear pillow body, low speakers are arranged on the left side and the right side in ear holes of the ear pillow body, and a positive stereo sound field for sleeping faces is formed by controlling the volume of the high and the low speakers and the volume of the left and the right speakers. The device layout structure in the invention is ingenious in design, and the automatic adjustment method is simple and clear.
Description
Technical Field
The invention relates to an ear pillow, in particular to a device layout structure and a regulation and control method based on a perception ear pillow.
Background
Sleep is very important in human life, and the improvement of sleep quality is beneficial to physical and psychological health of human bodies. The pillow is an important auxiliary sleeping tool, the ear pillow is an old traditional pillow and has the function of protecting ears, and the pillow is famous because the middle of the pillow is dug out, so that the ears can be protected from being pressed by the head due to the fact that the size of the space is proper. The ear pillow is special in shape, is more suitable for side sleeping positions, is basically stable in sleeping positions, and has the posture characteristics that the left face and the right face are different.
In order to improve the sleep quality, besides the change of the filling material inside the pillow, many intelligent pillows with sleep detection and music playing functions are also available at present, for example, chinese patent CN108056765A discloses an intelligent pillow and cushion capable of automatically monitoring the health status of human body, CN110975107A discloses a music sleep-assisting pillow and a music sleep-assisting method, and CN109924948A discloses an intelligent pillow control method and system, most products in the prior art relate to sensing, communication and judgment, and realize the control operation of mobile phone terminal software, such as sound control and data collection and playback.
However, the prior art has some defects that the prior art is directed at a common pillow, and the arrangement of the loudspeakers is 2 or 3 arranged at the left and right of the center, so that the special shape requirements of the ear pillow cannot be met, and the real-time surrounding sound field cannot be automatically set according to the posture of a human body during sleeping; meanwhile, although some control methods exist in the prior art, no perception control calculation method with targeted sensor arrangement and characteristic quantity thereof is disclosed.
Disclosure of Invention
The invention aims at the characteristics of the ear pillow and the sleeping posture of a human body, overcomes the defects in the prior art, provides a device layout structure and a regulation and control method based on the perception ear pillow, can automatically form specific sound field environment and sound source control through definite device layout and calculation control, and avoids the complex operations of body temperature measurement, heartbeat measurement, an intelligent terminal (such as a mobile phone APP) and the like, thereby assisting an ear pillow user in improving the sleeping quality.
In order to achieve the purpose, the invention adopts the technical scheme that:
a device layout structure based on a perception ear pillow comprises an ear pillow body, wherein an ear hole is formed in the ear pillow body, the device layout structure is composed of a control component, a low-position loudspeaker group, a high-position loudspeaker group, a respiration audio sensor group, a pressure sensor group and flexible filler surrounded outside, and the low-position loudspeaker group, the high-position loudspeaker group, the respiration audio sensor group and the pressure sensor group are respectively connected with the control component; the low-order loudspeaker set and the high-order loudspeaker set are respectively arranged left and right by taking the ear hole as the center, and the distance between the low-order loudspeaker set and the ear hole center is close to the distance between the high-order loudspeaker set and the ear hole center.
Preferably, the low-level speaker group comprises a left low-level speaker and a right low-level speaker which are arranged on the left inner side wall and the right inner side wall of the ear hole, and the distance from the low-level speaker group to the surface of the ear pillow body is not less than Dhl，DhlAs shown in equation (1):
in the formula (1), DhlThe distance between the low-level loudspeaker set and the surface of the ear pillow body, Hight is the average height of the ear pillow body, and delta dhFor adjustable deviations, the units are centimeters cm.
0-5 cm is a correction value according to the height of the pillow, DhlThe specific value is based on the height of the pillow, and if the pillow is 40 cm high, the distance from the surface is about 30 cm.
Preferably, the high-level speaker group comprises a left high-level speaker and a right high-level speaker which are arranged in the left side and the right side of the ear pillow body, and the left side and the right side of the ear pillow body are bulged upwards; the high-order loudspeaker set is vertically arranged, the height of the high-order loudspeaker set uses the low-order loudspeaker set as a horizontal plane, and the vertical height difference between the high-order loudspeaker set and the low-order loudspeaker set is larger than 4 cm.
Preferably, the speaking surfaces of the low-position speaker group and the high-position speaker group face the center direction of the ear pillow body, the downward depression angle of the low-position speaker group ranges from 0 to 60 degrees, the upward inclination angle of the high-position speaker group ranges from 0 to 60 degrees, and the horizontal distance between the high-position speaker on the same side and the low-position speaker is larger than 20 cm.
Preferably, the pressure sensor group is arranged on the upper layer of the ear pillow body and is divided into a left pressure sensor and a right pressure sensor by taking the ear hole as a center line, the pressure sensor group is arranged in an m-row and n-column array mode, and the arrangement range of the pressure sensor group is the left side length and the right side length from the center line of the ear pillow body: 5-20 cm, upper and lower width: 10-20 cm.
Preferably, breathe audio sensor group including setting up the left side on both sides about the ear pillow body and breathe audio sensor with the right side, breathe audio sensor group apart from ear pillow body surface distance not more than 1cm, the level is apart from ear hole central distance for 15 ~ 25cm, the plane width is shown as formula (2) apart from lower edge position perpendicularly:
in the formula (2), DmbThe Width of the plane is vertically far away from the lower edge, Width is the Width of the ear pillow body, and delta dw is adjustable deviation and has the unit of centimeter cm.
Preferably, the control component comprises a control arithmetic unit, a sound field controller, a power management/switch/rechargeable battery, a music selection player/sound source storage, a wireless communication module and a wired communication/charging module, the breath audio sensor group and the pressure sensor group are connected with the control arithmetic unit, the music selection player/sound source storage are connected with the sound field controller, and the sound field controller is connected with the low-order loudspeaker group and the high-order loudspeaker group; the power management/switch/rechargeable battery is connected with the control arithmetic unit and the sound field controller, the wireless communication module and the wired communication/charging module are connected with the music selection player/sound source storage, and the wireless communication module is connected with the control arithmetic unit.
The invention also provides a regulation and control method of the device layout structure based on the perception ear pillow, which comprises the following steps:
(1) initializing basic parameters, and setting initial playing volume;
(2) based on the center position of the ear hole of the pillow, the left and right instantaneous pressure is received;
(3) calculating the uneven distribution characteristics of the left and right side pressures of the pillow, studying and judging the sleeping posture, determining that the head faces left or right, correspondingly determining the volume of the left and right speakers, wherein the volume of the left and right speakers is the sum of the volume of the high speakers and the volume of the low speakers at the respective sides, the volume of the low speakers is smaller than the volume of the high speakers, the volume of the face forward speaker group is larger than the volume of the back speaker group, and a human body forward surrounding sound field is formed;
(4) calculating to obtain a spectral energy value transmitted by the respiratory audio sensor on the left side or the right side, and subtracting the spectral energy value of the system playing volume to obtain a respiratory event and a respiratory acoustic energy value;
(5) judging whether the respiratory sound energy is smaller than the super-energy threshold value, if so, selecting to play a sleep-aiding white noise audio, and if so, selecting to play a waking high-frequency whistle audio;
(6) calculating a respiratory cycle and a variation variance value in unit time, and representing sleep fluctuation by using a front-back event difference value of a continuous cycle;
(7) and comparing the calculated variance with an excessive sleep threshold value and a stable sleep threshold value to obtain a segmented total volume output control function.
Preferably, the left and right speakers are selected by the characteristic values generated by the left and right pressure sensors, the volume is adjusted and controlled, the face orientation is judged according to the formula (3), and the sound field volume V is measured at one sidel(t) and Vr(t) the high-order and low-order loudspeakers are synthesized together, the low-order volume value is smaller than the high-order volume value, the corresponding loudspeaker volume value for adjusting the face direction is calculated according to a formula (4), and the reverse loudspeaker volume value of the face is adjusted and reduced at the same time, so that the mixed sound field felt by the head of a person is always kept in the face forward direction;
p in formula (3)l(t)，Pr(t) instantaneous pressures, V, of the left and right pressure sensors, respectivelylup(t)、Vllow(t)，Vrup(t)、Vrlow(t) speaker volumes for left high, left low, right high, right low, respectively, d < 1 being a reduced scale factor for low volume;
in the formula (4), V (t) is the current volume, V1(t)，Vr(t) left and right pair volumes, k an increasing coefficient, and g a decreasing coefficient, respectively.
Preferably, the time-frequency conversion is carried out on the characteristic signal of the breath audio sensing in a unit time through Fast Fourier Transform (FFT), and the respiratory event t is judged according to a formula (5) according to the frequency spectrum energy difference delta E (t) between the audio emitted by the system loudspeaker and the breath audio at the current moment in the frequency domainn，
Wherein, Ubl(t)，Ubr(t) instantaneous sensing quantities of left-breath audio sensing and right-breath audio sensing respectively, wherein BE is a threshold value of a detected respiratory energy system;
simultaneously according to formula (6):
according to the comparison between the cumulative value of the continuous energy difference and the super-energy respiration threshold BH, selecting the playing audio type StThe sleep sound is disturbed by white noise hypnosis music or high-frequency whistle stimulation.
Preferably, the sound source is adjusted through characteristic values of pressure sensing and respiratory audio sensing, the total volume change of a sound field is controlled according to respiratory stability, the respiratory rhythm change in unit time is calculated according to a formula (7), and finally the current volume value is controlled and adjusted according to a formula (9);
in the formula, TUAIs the average of the period of the respiratory audio sensing event in unit time t, in units of seconds, NtIs the total number of respiratory sound events per unit time t, tnIs at the tnAn event and the tn+1A time interval of the starting point of an event, the variance of which isT；
The fluctuation of the sleep level in successive cycles is shown as Δ NtThe difference value is small during deep sleep, and the change is large during transition sleep, which is calculated according to the formula (8):
in formula (9), V' (t, V)l，Vr) The output volume of the loudspeaker group is regulated and controlled according to the pressure, h is a volume attenuation factor, r is a fluctuation correction factor, s is a sleep transition threshold value, and z is a stable threshold value.
The invention has the beneficial effects that:
the invention is designed aiming at the special state position that the human body lies on the side and a single ear is arranged in the ear hole of the ear pillow body, pressure and respiration sensors are distributed on two sides of the ear hole on the surface of the ear pillow body, the left and right lying state of the human body is calculated and judged, and the type and volume of the played audio are selected by calculating the respiration intensity; the left side and the right side of the ear pillow body are slightly bulged, high speakers are distributed in the ear pillow body, low speakers are arranged on the left side and the right side in ear holes of the ear pillow body, and a positive stereo sound field for sleeping faces is formed by controlling the volume of the high and the low speakers and the volume of the left and the right speakers. The device layout structure in the invention is ingenious in design, and the automatic adjustment method is simple and clear.
Drawings
FIG. 1 is a schematic diagram of the layout structure of the components of the ear pillow of the present invention;
fig. 2 is a schematic structural diagram of the arrangement of the low-level loudspeaker set and the high-level loudspeaker set according to the present invention;
FIG. 3 is a block diagram of the construction of the ear pillow of the present invention;
fig. 4 is a flow chart of the operation of the present invention.
Detailed Description
The invention is further illustrated by the following examples, without limiting the scope of the invention. Those skilled in the art can and should understand that any simple changes or substitutions based on the spirit of the present invention should fall within the protection scope of the present invention.
Referring to fig. 1-3, a device layout structure based on a perception ear pillow comprises an ear pillow body 1, wherein an ear hole 2 is formed in the ear pillow body, the device layout structure is composed of a control component 3, a low-position loudspeaker group, a high-position loudspeaker group, a breathing audio sensor group, a pressure sensor group and an externally-surrounded porous fiber flexible filler, and the low-position loudspeaker group, the high-position loudspeaker group, the breathing audio sensor group and the pressure sensor group are respectively connected with the control component; the length, width and height of the ear pillow body (pillow) 1 are 60 x 40 x 30cm, the low-level loudspeaker set and the high-level loudspeaker set are respectively arranged left and right by taking the ear hole 2 as the center, and the distance between the low-level loudspeaker set and the center of the ear hole 2 is close to the distance between the higher-level loudspeaker set and the center of the ear hole 2.
Lay and use the earhole to lay two sets of speakers about according to the center in the ear pillow body to the high two pairs of speakers in unilateral constitute stereo field pair, low level speaker group is including setting up left low level speaker 4 and the right low level speaker 5 on the inside wall about earhole 2, low level speaker group is not less than (this embodiment is laid the value and is 20cm) apart from 1 surface distance of ear pillow body, as shown in formula (1):
in the formula (1), DhlThe distance between the low-level loudspeaker set and the surface of the ear pillow body, Hight is the average height of the ear pillow body, and delta dhFor adjustable deviations, the units are centimeters cm.
The high-position loudspeaker set comprises a left high-position loudspeaker 6 and a right high-position loudspeaker 7 which are arranged in the left side edge and the right side edge of the ear pillow body 1, and the left side edge and the right side edge of the ear pillow body 1 are bulged upwards; the high-order loudspeaker set is vertically arranged, the height of the high-order loudspeaker set uses the low-order loudspeaker set as a horizontal plane, and the vertical height difference between the high-order loudspeaker set and the low-order loudspeaker set is larger than 4 cm.
The face of raising one's voice of low level speaker group, high level speaker group all faces the center side of ear pillow body 1, and low level speaker group 0 ~ 60 of angle of depression downwards, high level speaker group 0 ~ 60 of angle of inclination upwards, and the same side high level speaker is greater than 20cm with low level speaker horizontal separation.
The pressure sensor group is arranged on the upper layer of the ear pillow body 1 and is divided into a left pressure sensor 8 and a right pressure sensor 9 by taking the ear hole 2 as a central line, the pressure sensor group is arranged in an m-row n-column array mode (a 4 × 2 array is used in the embodiment), the arrangement range of the pressure sensor group is 5-20 cm of left and right side length from the central line of the ear pillow body, the upper and lower widths are 10-20 cm, and the instantaneous pressure is expressed as Pl(t)，Pr(t)。
Breathe audio sensor group including setting up and breathe audio sensor 11 with the right side on left and right sides of ear pillow body on the left and right sides, breathe audio sensor group apart from ear pillow body surface distance and be not more than 1cm, the level apart from ear hole central distance be 15 ~ 25cm, instantaneous sensing quantity is Ubl(t)，Ubr(t); the position of the plane width vertically spaced from the lower edge is shown in formula (2) (12 cm in this embodiment):
in the formula (2), DmbThe Width of the plane is vertically far away from the lower edge, Width is the Width of the ear pillow body, and delta dw is adjustable deviation and has the unit of centimeter cm.
The control part comprises a control arithmetic unit, a sound field controller, a power management/switch/rechargeable battery, a music selection player/sound source storage, a WiFi/Bluetooth wireless communication module and a USB wired communication/charging module, wherein the respiration audio sensor group and the pressure sensor group are connected with the control arithmetic unit, the music selection player/sound source storage are connected with the sound field controller, and the sound field controller is connected with a low-order loudspeaker group and a high-order loudspeaker group; the power management/switch/rechargeable battery is connected with the control arithmetic unit and the sound field controller, the WiFi/Bluetooth wireless communication module and the USB wired communication/charging module are connected with the music selection player/sound source storage, and the WiFi/Bluetooth wireless communication module is connected with the control arithmetic unit.
Referring to fig. 4, the method for regulating the device layout structure based on the perception ear pillow includes the following steps:
(1) initializing basic parameters, and setting initial playing volume;
(2) based on the center position of the ear hole of the pillow, the left and right instantaneous pressure is received;
(3) calculating the uneven distribution characteristics of the left and right side pressures of the pillow, studying and judging the sleeping posture, determining that the head faces left or right, correspondingly determining the volume of the left and right speakers, wherein the volume of the left and right speakers is the sum of the volume of the high speakers and the volume of the low speakers at the respective sides, the volume of the low speakers is smaller than the volume of the high speakers, the volume of the face forward speaker group is larger than the volume of the back speaker group, and a human body forward surrounding sound field is formed;
(4) calculating to obtain a spectral energy value transmitted by the respiratory audio sensor on the left side or the right side, and subtracting the spectral energy value of the system playing volume to obtain a respiratory event and a respiratory acoustic energy value;
(5) judging whether the respiratory sound energy is smaller than the super-energy threshold value, if so, selecting to play a sleep-aiding white noise audio, and if so, selecting to play a waking high-frequency whistle audio;
(6) calculating a respiratory cycle and a variation variance value in unit time, and representing sleep fluctuation by using a front-back event difference value of a continuous cycle;
(7) and comparing the calculated variance with an excessive sleep threshold value and a stable sleep threshold value to obtain a segmented total volume output control function.
Selecting left and right loudspeakers according to characteristic values generated by left and right pressure sensors, adjusting and controlling the volume, judging the face orientation according to a formula (3), and judging the volume V of a single-side sound fieldl(t) and Vr(t) the high-order and low-order loudspeakers are synthesized together, the low-order volume value is smaller than the high-order volume value, the corresponding loudspeaker volume value for adjusting the face direction is calculated according to a formula (4), and the reverse loudspeaker volume value of the face is adjusted and reduced at the same time, so that the mixed sound field felt by the head of a person is always kept in the face forward direction;
p in formula (3)l(t)，Pr(t) instantaneous pressures, V, of the left and right pressure sensors, respectivelylup(t)、Vllow(t)，Vrup(t)、Vrlow(t) speaker volumes for left high, left low, right high, right low, respectively, d < 1 being a reduced scale factor for low volume;
in the formula (4), V (t) is the current volume, Vl(t)，Vr(t) left and right pair volumes, k an increasing coefficient, and g a decreasing coefficient, respectively.
Carrying out time-frequency conversion on the characteristic signal of the breath audio sensing in unit time through Fast Fourier Transform (FFT), and according to the frequency spectrum energy difference delta E (t) of the audio emitted by the system loudspeaker and the breath audio at the current moment in the frequency domainFormula (5) determines respiratory event tn，
Wherein, Ubl(t)，Ubr(t) instantaneous sensing quantities of left-breath audio sensing and right-breath audio sensing respectively, wherein BE is a threshold value of a detected respiratory energy system;
simultaneously according to formula (6):
according to the comparison between the cumulative value of the continuous energy difference and the super-energy respiration threshold BH, selecting the playing audio type StThe sleep sound is disturbed by white noise hypnosis music or high-frequency whistle stimulation.
Adjusting a sound source through characteristic values of pressure sensing and respiratory audio sensing, controlling total volume change of a sound field according to respiratory stability, calculating respiratory rhythm change in unit time according to a formula (7), and finally controlling and adjusting a current volume value according to a formula (9);
in the formula, TUAIs the average of the period of the respiratory audio sensing event in unit time t, in units of seconds, NtIs the total number of respiratory sound events per unit time t, tnIs at the tnAn event and the tn+1A time interval of the starting point of an event, the variance of which isT；
The fluctuation of the sleep level in successive cycles is shown as Δ NtDepth ofThe difference value is small during sleep, and the change is large during transition sleep, which is calculated according to the formula (8):
in formula (9), V' (t, V)l，Vr) The output volume of the loudspeaker group is regulated and controlled according to the pressure, h is a volume attenuation factor, r is a fluctuation correction factor, s is a sleep transition threshold value, and z is a stable threshold value.
The structure of the invention can be adjusted automatically according to the behavior of people after being initially set, and can also be used for carrying out artificial remote control on the initial volume, the sleep transition threshold value, the stable threshold value, the played music content (such as white noise of forest, beach and the like), the instantaneous volume and the sound field layout through wired or wireless.
The invention is designed aiming at the special state position that the human body lies on the side and a single ear is arranged in the ear hole of the ear pillow body, pressure and respiration sensors are distributed on two sides of the ear hole on the surface of the ear pillow body, the left and right lying states of the human body are calculated and judged, and the type and volume of the played audio are selected by calculating the respiration intensity. The left side and the right side of the ear pillow body are slightly bulged, high speakers are distributed in the ear pillow body, low speakers are arranged on the left side and the right side in ear holes of the ear pillow body, and a positive stereo sound field for sleeping faces is formed by controlling the volume of the high and the low speakers and the volume of the left and the right speakers. The device layout structure in the invention is ingenious in design, and the automatic adjustment method is simple and clear.
Claims (10)
1. The utility model provides a structure is laid to device based on perception ear pillow, includes the ear pillow body, be equipped with the earhole on the ear pillow body, its characterized in that: the device layout structure comprises a control component, a low-level loudspeaker group, a high-level loudspeaker group, a respiratory audio sensor group, a pressure sensor group and an externally-enclosed flexible filler, wherein the low-level loudspeaker group, the high-level loudspeaker group, the respiratory audio sensor group and the pressure sensor group are respectively connected with the control component; the low-order loudspeaker set and the high-order loudspeaker set are respectively arranged left and right by taking the ear hole as the center, and the distance between the low-order loudspeaker set and the ear hole center is close to the distance between the high-order loudspeaker set and the ear hole center.
2. The device layout structure based on the perception ear pillow as claimed in claim 1, wherein: the low-level loudspeaker set comprises a left low-level loudspeaker and a right low-level loudspeaker which are arranged on the left inner side wall and the right inner side wall of the ear hole, and the distance from the low-level loudspeaker set to the surface of the ear pillow body is not less than Dhl，DhlAs shown in equation (1):
in the formula (1), Hight is the average height of the ear pillow body, Δ dhTo adjust the deviation;
the high-position loudspeaker set comprises a left high-position loudspeaker and a right high-position loudspeaker which are arranged in the left side edge and the right side edge of the ear pillow body, and the left side edge and the right side edge of the ear pillow body are bulged upwards; the high-order loudspeaker set is vertically arranged, the height of the high-order loudspeaker set uses the low-order loudspeaker set as a horizontal plane, and the vertical height difference between the high-order loudspeaker set and the low-order loudspeaker set is larger than 4 cm.
3. The device layout structure based on the perception ear pillow as claimed in claim 2, wherein: the central side of the ear pillow body is all faced to the face of raising one's voice of low level speaker group, high level speaker group, and low level speaker group 0 ~ 60 of angle of depression downwards, high level speaker group 0 ~ 60 of angle of inclination upwards, and the same side high level speaker is greater than 20cm with low level speaker horizontal separation.
4. The device layout structure based on the perception ear pillow as claimed in claim 1, wherein: the pressure sensor group is arranged on the upper layer of the ear pillow body and is divided into a left pressure sensor and a right pressure sensor by taking the ear hole as a central line, the pressure sensor group is arranged in an m-row n-column array mode, and the distribution range of the pressure sensor group is the left side length and the right side length away from the central line of the ear pillow body: 5-20 cm, upper and lower width: 10-20 cm.
5. The device layout structure based on the perception ear pillow as claimed in claim 1, wherein: breathe audio sensor group including setting up and breathing audio sensor and right side on both sides about the ear pillow body on a left side, breathe audio sensor group apart from ear pillow body surface distance and be not more than 1cm, the level apart from ear hole central distance be 15 ~ 25cm, the plane width is shown as formula (2) apart from lower edge position perpendicularly:
in the formula (2), DmbThe Width of the plane is vertically far away from the lower edge, Width is the Width of the ear pillow body, and delta dw is adjustable deviation and has the unit of centimeter cm.
6. The device layout structure based on the perception ear pillow as claimed in claim 1, wherein: the control part comprises a control arithmetic unit, a sound field controller, a power management/switch/rechargeable battery, a music selection player/sound source storage, a wireless communication module and a wired communication/charging module, wherein the respiration audio sensor group and the pressure sensor group are connected with the control arithmetic unit, the music selection player/sound source storage are connected with the sound field controller, and the sound field controller is connected with a low-order loudspeaker group and a high-order loudspeaker group; the power management/switch/rechargeable battery is connected with the control arithmetic unit and the sound field controller, the wireless communication module and the wired communication/charging module are connected with the music selection player/sound source storage, and the wireless communication module is connected with the control arithmetic unit.
7. A method for regulating and controlling the layout structure of the device based on the perception ear pillow as claimed in any one of claims 1 to 6, characterized by comprising the following steps:
(1) initializing basic parameters, and setting initial playing volume;
(2) based on the center position of the ear hole of the pillow, the left and right instantaneous pressure is received;
(3) calculating the uneven distribution characteristics of the left and right side pressures of the pillow, studying and judging the sleeping posture, determining that the head faces left or right, correspondingly determining the volume of the left and right speakers, wherein the volume of the left and right speakers is the sum of the volume of the high speakers and the volume of the low speakers at the respective sides, the volume of the low speakers is smaller than the volume of the high speakers, the volume of the face forward speaker group is larger than the volume of the back speaker group, and a human body forward surrounding sound field is formed;
(4) calculating to obtain a spectral energy value transmitted by the respiratory audio sensor on the left side or the right side, and subtracting the spectral energy value of the system playing volume to obtain a respiratory event and a respiratory acoustic energy value;
(5) judging whether the respiratory sound energy is smaller than the super-energy threshold value, if so, selecting to play a sleep-aiding white noise audio, and if so, selecting to play a waking high-frequency whistle audio;
(6) calculating a respiratory cycle and a variation variance value in unit time, and representing sleep fluctuation by using a front-back event difference value of a continuous cycle;
(7) and comparing the calculated variance with an excessive sleep threshold value and a stable sleep threshold value to obtain a segmented total volume output control function.
8. The method for regulating and controlling the layout structure of ear pillow sensing devices as claimed in claim 7, wherein: selecting left and right loudspeakers according to characteristic values generated by left and right pressure sensors, adjusting and controlling the volume, judging the face orientation according to a formula (3), and judging the volume V of a single-side sound fieldl(t) and Vr(t) the high-order and low-order loudspeakers are synthesized together, the low-order volume value is smaller than the high-order volume value, the corresponding loudspeaker volume value for adjusting the face direction is calculated according to a formula (4), and the reverse loudspeaker volume value of the face is adjusted and reduced at the same time, so that the mixed sound field felt by the head of a person is always kept in the face forward direction;
p in formula (3)l(t)，Pr(t) instantaneous pressures, V, of the left and right pressure sensors, respectivelylup(t)、Vllow(t)，Vrup(t)、Vrlow(t) speaker volumes for left high, left low, right high, right low, respectively, d < 1 being a reduced scale factor for low volume;
in the formula (4), V (t) is the current volume, Vl(t)，Vr(t) left and right pair volumes, k an increasing coefficient, and g a decreasing coefficient, respectively.
9. The method for regulating and controlling the layout structure of the device based on the perception ear pillow as claimed in claim 8, wherein: carrying out time-frequency conversion on the characteristic signal of the breath audio sensing in unit time through Fast Fourier Transform (FFT), and judging a breath event t according to a formula (5) according to the frequency spectrum energy difference delta E (t) between the audio emitted by the system loudspeaker and the breath audio at the current moment in a frequency domainn，
Wherein, Ubl(t)，Ubr(t) instantaneous sensing quantities of left-breath audio sensing and right-breath audio sensing respectively, wherein BE is a threshold value of a detected respiratory energy system;
simultaneously according to formula (6):
according to the comparison between the cumulative value of the continuous energy difference and the super-energy respiration threshold BH, selecting the playing audio type StThe sleep sound is disturbed by white noise hypnosis music or high-frequency whistle stimulation.
10. The method for regulating and controlling the layout structure of the device based on the perception ear pillow as claimed in claim 9, wherein: adjusting a sound source through characteristic values of pressure sensing and respiratory audio sensing, controlling total volume change of a sound field according to respiratory stability, calculating respiratory rhythm change in unit time according to a formula (7), and finally controlling and adjusting a current volume value according to a formula (9);
in the formula, TUAIs the average of the period of the respiratory audio sensing event in unit time t, in units of seconds, NtIs the total number of respiratory sound events per unit time t, tnIs at the tnAn event and the tn+1A time interval of the starting point of an event, the variance of which isT；
The fluctuation of the sleep level in successive cycles is shown as Δ NtThe difference value is small during deep sleep, and the change is large during transition sleep, which is calculated according to the formula (8):
in formula (9), V' (t, V)l，Vr) The output volume of the loudspeaker group is regulated and controlled according to the pressure, h is a volume attenuation factor, r is a fluctuation correction factor, s is a sleep transition threshold value, and z is a stable threshold value.
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