CN205728862U - Intelligent bed mattress system - Google Patents

Abstract

This utility model provides a kind of intelligent bed mattress system, and system includes: intelligent controlling device, baroceptor, mattress；Mattress includes air bag layer；Intelligent controlling device, for obtaining the air pressure in air bag layer by baroceptor detection, obtains human life characteristic on mattress according to the change of air pressure.People lies on mattress, breathes and the vibration of heart beating causes air pressure respective change in mattress, the pressure signal of change is changed into by baroceptor the voltage signal of change.From the voltage signal of change, heart beating and respiratory frequency is extracted by corresponding signal processing algorithm and signal detection algorithm.This utility model it is critical only that: by regulating the aeration quantity of mattress bag layer, it is achieved mattress soft or hard regulates, and meets the different user requirement to mattress comfort level；Realize user is breathed and heart rate, pressure, the monitoring of sleep quality by intelligent controlling device module, in order to user understands self health data in time.

Description

Intelligent bed mattress system

Technical field

This utility model relates to intelligent appliance technical field, in particular it relates to a kind of intelligent bed mattress system.

Background technology

Along with the continuous lifting of people's living standard, increasing people starts to focus on the quality of the life of oneself. Sleep occupy people all one's life 1/3rd time, mattress is requisite household articles in people's daily life. Along with improving constantly of people's living standard, people's outward appearance, comfortableness, function, environmental protection characteristic and product to mattress The requirement of quality is more and more higher.The development of mattress now is also towards three-dimensional, multifunction development.

In prior art, usual mattress is divided into sping mattress, Petiolus Trachycarpi mattress, latex bed mattress, water bed mattress and pneumatic mattress Deng.In these mattresses, the most commonly used is sping mattress.The spring layer that the inside of sping mattress is arranged, spring Comfortable packed layer is set on layer.And after long between in use, be susceptible to spring and get rusty and the showing of elastic failure As.The monolithic construction of existing mattress is also difficult to meet the demand of different purposes, for the application of existing padding for spring bed Bring limitation.

Mattress on current market is numerous, but whether be sping mattress or pure sponge matress, is all fixing hardness Mattress；If consumer feels uncomfortable after buying back home, it is impossible to be adjusted；It addition, improve for needs The user of sleep quality, it is impossible to monitor the parameters such as the sleep quality of oneself, respiratory frequency, heart rate.

Utility model content

For defect of the prior art, the purpose of this utility model is to provide a kind of intelligent bed mattress system.

A kind of intelligent bed mattress system provided according to this utility model, including: intelligent controlling device, baroceptor, Mattress；Described mattress includes air bag layer；

Described baroceptor is connected to the air bag layer of described mattress, and detects the described air bag layer internal gas pressure of acquisition；Institute Stating intelligent controlling device to be connected with described baroceptor, described intelligent controlling device detects according to described baroceptor The change of air bag layer internal gas pressure obtains human life characteristic on mattress, human life characteristic on described mattress Including respiratory frequency and/or palmic rate.

As a kind of prioritization scheme, described intelligent controlling device includes pre-processing module and post-processing module；

The air pressure signal of the air bag layer that the detection of described baroceptor is obtained by described pre-processing module is transferred to after processing Described post-processing module, described post-processing module obtains the respiratory frequency of human body on mattress according to the air pressure signal after processing And/or palmic rate；Air pressure signal frequency after described process is less than or equal to 10Hz.

As a kind of prioritization scheme, described post-processing module includes the second process submodule,

Described second processes submodule carries out fast Fourier transform acquisition process to the air pressure signal time-domain spectral after processing After air pressure signal frequency-domain spectrum；

Described second processes the air pressure signal frequency domain frequency after submodule obtains described process in default breathing band limits The peak value of spectrum is output as described respiratory frequency；

Described second processes the air pressure signal frequency domain frequency after submodule obtains described process in default heart beating band limits The peak value of spectrum is output as described palmic rate.

As a kind of prioritization scheme, the air pressure signal time-domain spectral after described process: s (t)=s_h(t)+s_b(t)+A；Wherein, Heart beating voltage signal sh (t)=A_h×sin(2πf_ht+θ_h), breathe voltage signal s_b(t)=A_b×sin(2πf_bt+θ_b), A_hAnd A_bIt is respectively heart beating and the amplitude of breathing, f_hAnd f_bIt is respectively and breathes and the frequency of heart beating, θ_hAnd θ_bIt is respectively and breathes Initial phase with heart beating；

Described second process submodule to process after air pressure signal time-domain spectral carry out fast Fourier transform particularly as follows:

$S\left(j2\mathrm{\π}f\right)={\∫}_{-\mathrm{\∞}}^{+\mathrm{\∞}}s\left(t\right)e^{-j2\mathrm{\π}ft}dt.$

As a kind of prioritization scheme, described post-processing module also includes network connexon module；Described second processes submodule By described network connexon module, described respiratory frequency and palmic rate are sent to other networked devices.

As a kind of prioritization scheme, described post-processing module also includes display module；Described second processes submodule by described Respiratory frequency and palmic rate transmission show in real time to described display module.

As a kind of prioritization scheme, described pre-processing module is connected by USB interface with described post-processing module, described before Processing module controls usb protocol and the air pressure signal after described process is transferred to described post-processing module.

As a kind of prioritization scheme, also include inflator pump, air shut-off valve；Described air shut-off valve is located at described inflator pump On the pipeline being connected with described air bag layer；

Described pre-processing module according to peripheral operation or pre-set programs and described current gas pressure value control described inflator pump and Described air shut-off valve, changes the air pressure in described air bag layer to target zone, thus regulates the soft or hard of described mattress；

Described air shut-off valve responds control connection air bag layer side pore and the inflator pump of described pre-processing module, or connects Logical air bag layer side pore is with extraneous, or Guan Bi air bag side layer pore.

As a kind of prioritization scheme, also include that external air chamber, described air bag layer connect with described external air chamber, described gas It is indoor that pressure sensor is located at described external gas.

As a kind of prioritization scheme, described pre-processing module includes filter and amplification submodule, described filter and amplification submodule bag Include the first low pass filter, amplifier, the second low pass filter；Described baroceptor connects described first low-pass filtering Device, described first low pass filter connects described amplifier, and described amplifier connects described second low pass filter；

Air pressure signal is filtering to signal frequency by described first low pass filter will be believed less than or equal to 10Hz, described amplifier Number amplify 0-350 times, described second low pass filter will amplify after signal filtering to signal frequency be less than or equal to 10Hz Obtain the air pressure signal after described process.

As a kind of prioritization scheme, described pre-processing module also includes analog-digital converter, the first process submodule；

Described air pressure signal carries out analog digital conversion acquisition through described analog-digital converter after described filter and amplification submodule processes Air pressure signal after described process, described first processes submodule is sent to described rear place by the air pressure signal after described process Reason module.

As a kind of prioritization scheme, described pre-processing module also includes the first process submodule；

Described first processes submodule obtains current gas pressure value according to the air pressure signal after described process, and grasps according to outside Work or pre-set programs and described current gas pressure value control described inflator pump and described air shut-off valve, change described inflation Air pressure in bag layer is to target zone, thus regulates the soft or hard of described mattress.

As a kind of prioritization scheme, described pre-processing module also includes bluetooth submodule；Described first processes submodule passes through Described bluetooth submodule and other bluetooth devices.

Compared with prior art, this utility model has a following beneficial effect:

The utility model has the advantages that consumer can need the mattress hardness required for selecting according to oneself, reach Good level of comfort；Consumer can monitor the condition feature of oneself in real time, such as respiratory frequency, heart rate, breathes Frequency, heart rate can be further used for calculating other health datas such as sleep quality.

Accompanying drawing explanation

In order to be illustrated more clearly that the technical scheme of this utility model embodiment, required in embodiment being described below Accompanying drawing to be used is briefly described, it is therefore apparent that the accompanying drawing in describing below is only of the present utility model one A little embodiments, for those skilled in the art, on the premise of not paying creative work, it is also possible to according to These accompanying drawings obtain other accompanying drawing.In accompanying drawing:

Fig. 1 is a kind of intelligent bed mattress system structural representation of alternative embodiment；

Fig. 2 is a kind of intelligent bed mattress system pre-processing module block diagram of alternative embodiment；

Fig. 3 is a kind of intelligent bed mattress system post-processing module block diagram of alternative embodiment；

Fig. 4 is a kind of intelligent bed mattress system heart rate and the respiratory frequency testing process schematic diagram of alternative embodiment；

Fig. 5 is a kind of intelligent bed mattress system air pressure signal time-domain spectral of alternative embodiment；

Fig. 6 is a kind of intelligent bed mattress system air pressure signal frequency-domain spectrum of alternative embodiment；

Fig. 7 is a kind of intelligent bed mattress system material object schematic diagram of alternative embodiment.

Detailed description of the invention

This utility model is described in detail in the way of specific embodiment below in conjunction with accompanying drawing.Following example will help It is further appreciated by this utility model in those skilled in the art, but limits this utility model the most in any form.Should refer to Go out is, it is also possible to use other embodiment, or the embodiment enumerated herein is carried out amendment structurally and functionally, Without departing from scope and spirit of the present utility model.

Of the present utility model it is critical only that: on the one hand, detected by the air pressure of intelligent controlling device realize user is breathed and The monitoring of heart rate, thus so that user understands the health data of self in time.On the other hand, by mattress bag layer Aeration quantity regulation, it is achieved the soft or hard regulation of mattress, thus meet the different user requirement to mattress comfort level.

In the embodiment of a kind of intelligent bed mattress system provided at this utility model, as shown in Figure 1 and Figure 7, including intelligence Device, baroceptor, mattress can be controlled；Described mattress includes air bag layer；

Described baroceptor is connected to the air bag layer of described mattress, and detects the described air bag layer internal gas pressure of acquisition；Institute Stating intelligent controlling device to be connected with described baroceptor, described intelligent controlling device detects according to described baroceptor The change of air bag layer internal gas pressure obtains human life characteristic on mattress, human life characteristic on described mattress Including respiratory frequency and/or palmic rate.

As a kind of embodiment, described intelligent controlling device includes pre-processing module as shown in Figure 2,3 and post processing mould Block；

The air pressure signal of the air bag layer that the detection of described baroceptor is obtained by described pre-processing module is transferred to after processing Described post-processing module, described post-processing module obtains the respiratory frequency of human body on mattress according to the air pressure signal after processing And/or palmic rate；Air pressure signal frequency after described process is less than or equal to 10Hz.

As a kind of embodiment, testing process as shown in Figure 4, the air pressure signal time-domain spectral after described process: S (t)=s_h(t)+s_bT ()+A is as shown in Figure 5；Wherein, heart beating voltage signal s_h(t)=A_h×sin(2πf_ht+θ_h), breathe Voltage signal s_b(t)=A_b×sin(2πf_bt+θ_b), A_hAnd A_bIt is respectively heart beating and the amplitude of breathing, f_hAnd f_bIt is respectively Breathe and the frequency of heart beating, θ_hAnd θ_bIt is respectively and breathes and the initial phase of heart beating；

Described post-processing module includes the second process submodule,

Described second processes submodule carries out fast Fourier transform acquisition process to the air pressure signal time-domain spectral after processing After air pressure signal frequency-domain spectrum:

$S\left(j2\mathrm{\π}f\right)={\∫}_{-\mathrm{\∞}}^{+\mathrm{\∞}}s\left(t\right)e^{-j2\mathrm{\π}ft}dt.$

Described second processes the air pressure signal frequency domain frequency after submodule obtains described process in default breathing band limits The peak value of spectrum is output as described respiratory frequency, as shown in Figure 6.

Described second processes the air pressure signal frequency domain frequency after submodule obtains described process in default heart beating band limits The peak value of spectrum is output as described palmic rate, as shown in Figure 6.

Second processes the frequency spectrum bag that after the air pressure signal after processing is done fast Fourier transform by submodule, frequency domain accumulation obtains Breathing frequency range and heart beating frequency range are included.

As a kind of embodiment, described post-processing module also includes network connexon module；Described second processes submodule leads to Cross described network connexon module to send described respiratory frequency and palmic rate to other networked devices.

Described network connexon module can be WI-FI module and wired connection mixed-media network modules mixed-media.Other networked devices can be Subscriber terminal equipment or the webserver.Subscriber terminal equipment can obtain described respiratory frequency and palmic rate, thus remembers Record oneself or the health data of other households.If user is in the body-building stage, then can be by long-term monitoring oneself Respiratory frequency and palmic rate, contrast knows that exercise is the most helpful to the health degree of oneself.Can also be for right The long-term observation of the therapeutic effect of disease.Respiratory frequency and palmic rate are uploaded to net by described network connexon module Network server is also equally these health datas of long record, and user can look into whenever and wherever possible with logging in network server Read, contrast.The webserver can also based on these respiratory frequencys and palmic rate do deeper into health data process point Analysis.

As a kind of embodiment, described post-processing module also includes display module；Described second processes submodule by user's Described respiratory frequency and palmic rate transmission show in real time to described display module.Described intelligent controlling device is arranged on In control chamber (box), display module is also disposed on control chamber surface, user can without any other equipment (such as mobile phone Terminal) in the case of from display module, see the respiratory frequency of oneself and the numerical value of palmic rate and Changing Pattern intuitively. Described display module can be numeral method, or LCDs, or the display device such as LED display.Described display Module can be and the display screen of post-processing module wired connection, it is also possible to is to be connected submodule with post-processing module by network Block carries out the display device of wireless data transmission.

As a kind of embodiment, described pre-processing module includes that filter and amplification submodule, described filter and amplification submodule include First low pass filter, amplifier, the second low pass filter；Described baroceptor connects described first low pass filter, Described first low pass filter connects described amplifier, and described amplifier connects described second low pass filter；

Air pressure signal is filtering to signal frequency by described first low pass filter will be believed less than or equal to 10Hz, described amplifier Number amplify 0-350 times, described second low pass filter will amplify after signal filtering to signal frequency be less than or equal to 10Hz Obtain the air pressure signal after described process.The amplification of described amplifier can be 80 times, or 100 times, or 150 Times, or 170 times, or 200 times, or 300 times, amplification can be adjusted according to different setting of frequency filtering.

Described pre-processing module also includes analog-digital converter, the first process submodule；

Described air pressure signal carries out analog digital conversion acquisition through described analog-digital converter after described filter and amplification submodule processes Air pressure signal after described process, described first processes submodule is sent to described rear place by the air pressure signal after described process Reason module.

Described filter and amplification submodule is that the air pressure signal to analog signal form carries out front-end processing, in order to filter significantly Clutter.Described filter and amplification submodule is the AFE (analog front end) in Fig. 2, is simulated data and processes.Human body lies in air mattress On pad, breathe and the vibration of heart beating causes the air pressure in mattress and trachea to change accordingly, will change by baroceptor Air pressure change into the voltage signal of change.Signal carries out low-pass filtering and amplification by AFE (analog front end) again, to improve noise Ratio, then by analog-digital converter (ADC), analog voltage signal is converted into digital signal, to facilitate Digital Signal Processing. Finally by corresponding signal processing algorithm and signal detection algorithm from the voltage signal of change by palmic rate and breathing Frequency abstraction is out.

As a kind of embodiment, described pre-processing module is connected by USB interface with described post-processing module, described front place Reason module controls usb protocol and the air pressure signal after described process is transferred to described post-processing module.Described pre-processing module Being connected by USB interface with described post-processing module, described pre-processing module and described post-processing module are separately positioned on two On the circuit board that block is separate, by the pluggable connection of USB interface.One advantage is that this connection is easy to rear Circuit board is changed when processing module breaks down.Another advantage is that, if user to the function of rhythm of the heart without wanting, In order to reduce cost, the product without post-processing module can be bought, the most only with mattress soft or hard regulatory function, and nothing Method carries out the detection of heart rate and respiratory frequency, and when the phase produces the idea increasing heart rate and respiratory frequency detection function behind, By USB interface, corresponding post-processing module can be increased up.Pre-processing module and post-processing module are to a certain degree On there is relatively independent feature, provided the user more more options, also provided convenience for product repairing.

As a kind of embodiment, as shown in Figure 1 and Figure 7, mattress system also includes inflator pump, air shut-off valve；Described Air shut-off valve is located on the pipeline that described inflator pump is connected with described air bag layer；

Described pre-processing module according to peripheral operation or pre-set programs and described current gas pressure value control described inflator pump and Described air shut-off valve, changes the air pressure in described air bag layer to target zone, thus regulates the soft or hard of described mattress.

Described air shut-off valve responds control connection air bag layer side pore and the inflator pump of described pre-processing module, or connects Logical air bag layer side pore is with extraneous, or Guan Bi air bag side layer pore.

Air bag layer, with under inflator pump connected state, controls inflator pump work simultaneously, is then inflated air bag layer, bed Pad hardening.

Air bag layer is in communication with the outside under state, controls inflator pump and quits work, and air bag layer is then exitted, mattress Deliquescing.

Under the pore closure state of air bag layer side, controlling inflator pump and quit work, mattress soft or hard is constant, and air bag is in envelope Closed state.

As a kind of embodiment, mattress system also includes that external air chamber, described air bag layer are protected all the time with described external air chamber Holding connection, it is indoor that described external gas is located at by described baroceptor.Baroceptor is by a trachea and air bag layer Portion's plenum space connection, baroceptor can sense while there is any air pressure change in air bag layer, produces Described air pressure signal.In the present embodiment, baroceptor is arranged on outside mattress, it is simple to when baroceptor breaks down On-call maintenance does not destroy mattress construction, is also convenient for the updating maintenance to baroceptor simultaneously.The present embodiment is by air pressure Detection obtain the heart rate of user and respiratory frequency, due in the waveform clear and definite after fast Fourier transform, Peak value highlights, it is possible to quickly obtains and obtains frequency by shaking sensor in heart rate and respiratory frequency, relatively prior art accurately The scheme of rate has bigger improvement, and effect is notable.

As a kind of embodiment, described first processes submodule is additionally operable to:

Current gas pressure value is obtained according to the air pressure signal after described process；

Described inflator pump and described air shut-off valve is controlled according to peripheral operation or pre-set programs and described current gas pressure value, Change the air pressure in described air bag layer to target zone.

The soft durometer of mattress is set in the present embodiment 1-10 gear, and 1 is the softest, and 10 is the hardest.And in air bag layer Air pressure is the biggest, and accordingly, mattress is the hardest.Process first and submodule prestores 10 air pressure range and gear Corresponding relation.User sends control signal by button or mobile phone and processes submodule transmission target zone 7 to first, if working as Front atmospheric pressure value belongs to the air pressure range of gear 5 correspondence, then first process submodule regulation air shut-off valve connection inflator pump and Air bag layer, opens inflator pump and is inflated air bag layer, until the air pressure that baroceptor detects reaches target model Stop inflation after enclosing 7, and close air bag layer side pore in air shut-off valve so that air bag layer is closed.

Air pressure range in reality can be designated: the word such as the softest, softer, comfortable, medium, harder, stone Describe.Article six, soft durometer standard is that word describes type, and user can select corresponding soft durometer according to self impression, this Soft durometer arranges more hommization, and Principles of Regulation are ibid.

As a kind of embodiment, described pre-processing module also includes bluetooth submodule；Described first processes submodule passes through institute State bluetooth submodule to send current gas pressure value to other bluetooth equipments.Other bluetooth equipments can be remote controller, or controls Main frame, or mobile phone etc..First processes submodule obtains desired value by bluetooth, also current soft durometer is fed back to bluetooth Equipment.

A kind of accurately know the method for human life characteristic on mattress, including:

Step 1, it is provided that intelligent controlling device, baroceptor, mattress；Described mattress includes air bag layer；

Step 2, the detection of described baroceptor obtains the air pressure in described air bag layer；

Step 3, described intelligent controlling device obtains human life characteristic on mattress according to the change of described air pressure, On described mattress, human life characteristic includes respiratory frequency and/or palmic rate.

Also include between step 2 and step 3: the signal obtained according to described air pressure is carried out successively low-pass filtering, 0～350 times of amplification, low-pass filtering, it is thus achieved that the air pressure signal after described process, described low-pass filtering allows the maximum passed through Frequency is less than or equal to 10Hz.

The process of the respiratory frequency and palmic rate that calculate user in step 3 farther includes:

The air pressure signal after change acquisition process according to described air bag layer internal gas pressure, to the air pressure signal time domain after processing Frequency spectrum carries out the air pressure signal frequency-domain spectrum after fast Fourier transform acquisition process；

The peak value of the air pressure signal frequency-domain spectrum after obtaining described process in default breathing band limits is output as user Described respiratory frequency；

The peak value of the air pressure signal frequency-domain spectrum after obtaining described process in default heart beating band limits is output as user Described palmic rate.

Air pressure signal time-domain spectral after processing described in step 3 is: s (t)=s_h(t)+s_b(t)+A；Wherein, heart beating electricity Pressure signal s_h(t)=A_h×sin(2πf_ht+θ_h), breathe voltage signal s_b(t)=A_b×sin(2πf_bt+θ_b), A_hAnd A_bRespectively For heart beating and the amplitude of breathing, f_hAnd f_bIt is respectively and breathes and the frequency of heart beating, θ_hAnd θ_bIt is respectively and breathes and at the beginning of heart beating Beginning phase place；

Described to process after air pressure signal time-domain spectral carry out fast Fourier transform particularly as follows: $S\left(j2\mathrm{\π}f\right)=$ ${\∫}_{-\mathrm{\∞}}^{+\mathrm{\∞}}s\left(t\right)e^{-j2\mathrm{\π}ft}dt.$

Described default breathing band limits is 0～0.5Hz；Described default heart beating band limits is 0.6～2.7Hz.

Heart beating in intelligent bed mattress system and respiratory frequency extraction algorithm flow process are as shown in Figure 4.Human body lies on air matting, Breathe and the vibration of heart beating causes the air pressure in mattress and trachea to change accordingly, by baroceptor by the pressure of change Change into the voltage signal of change.Signal carries out low-pass filtering and amplification by AFE (analog front end) again, to improve signal to noise ratio, then By ADC, analog voltage signal is converted into digital signal, to facilitate Digital Signal Processing.Finally by corresponding signal Heart beating and respiratory frequency are extracted from the voltage signal of change by Processing Algorithm and signal detection algorithm.

The action of human heartbeat and breathing all can be considered vibration, is similarly and shakes after being converted to voltage signal by baroceptor Dynamic signal, therefore models heart beating and breath signal by sinusoidal signal:

s_h(t)=A_h×sin(2πf_ht+θ_h) (1)

s_b(t)=A_b×sin(2πf_bt+θ_b) (2)

S (t)=s_h(t)+s_b(t)+A (3)

Formula (1) and formula (2) are respectively heart beating and breathe voltage signal, wherein A_hAnd A_bIt is respectively heart beating and the amplitude of breathing, f_hAnd f_bIt is respectively and breathes and the frequency of heart beating, θ_hAnd θ_bIt is respectively and breathes and the initial phase of heart beating.Formula (3) is air pressure The voltage signal of sensor output, it contains heart beating and breath signal sum, and it may also contain flip-flop in addition A。

Owing to heart beating and breath signal are similar to sine wave signal, therefore the measurement for frequency uses Fourier transformation to enter Row signal processing.Fourier transformation ultimate principle is as follows.As a example by voltage signal s (t) of baroceptor output, it Fourier transformation such as formula (4):

$S\left(j2\mathrm{\π}f\right)={\∫}_{-\mathrm{\∞}}^{+\mathrm{\∞}}s\left(t\right)e^{-j2\mathrm{\π}ft}dt---\left(4\right)$

Same signal s (t) also can be indicated by Fourier transformation, as shown in formula (5):

$s\left(t\right)={\∫}_{-\mathrm{\∞}}^{+\mathrm{\∞}}S\left(j2\mathrm{\π}f\right)e^{j2\mathrm{\π}ft}df---\left(5\right)$

It is therefore seen that, signal s (t) can be expressed as different simple signal sum, and the amplitude of simple signal is Fourier and becomes Value S (j2 π f) changed.Formula (4) and formula (5) are referred to as Fourier transform pairs, and (4) are Fourier transformation, and (5) are that Fourier is anti- Conversion.Signal can be transformed from the time domain to frequency domain and be analyzed by Fourier transformation.For baroceptor output signal, Being made up of heartbeat signal, breath signal and three simple signals of direct current signal, corresponding frequency is respectively f_h、f_bAnd 0Hz. Owing to having multiple frequency content and plus noise and the impact of interference in time domain, it is difficult to extract to heart beating and respiratory frequency, But after being transformed into frequency domain by Fourier transformation, heart beating and respiratory frequency and interference can be separated, and therefore can complete heart beating Extraction with respiratory frequency.

It is converted into digital signal in view of signal through digital collection module, therefore uses discrete Fourier transform (DFT), It is also contemplated that the complexity of computing, therefore use fast Fourier transform (FFT).

Fig. 4 is signal processing algorithm flow process.Become owing to signal has direct current signal through baroceptor after AFE (analog front end) Point, and much bigger relative to heart beating and breath signal energy, easily heart beating and breath signal are flooded if not removing secondary lobe, Add the process removing flip-flop the most in the pre-fft.Further, since signal length can not be unlimited, it is therefore desirable to FFT front signal is carried out windowing process to optimize main lobe and side lobe performance.After FFT, signal is complex signal, owing to not examining Consider and use phase information, only use amplitude information, carry out modulo operation the most after the fft, finally export and examine to signal Method of determining and calculating is with detection heart beating and respiratory frequency.

Two figures are simulation result below.In the case of signal to noise ratio is enough, convert a signal into frequency by Fourier transformation Behind territory, heart beating and respiratory frequency can be extracted very easily.

Contrast from the simulation result of Fig. 5 with Fig. 6 it can be seen that the frequency that Fig. 6, in amplitude frequency curve, peak fractions is corresponding is For heart beating and respiratory frequency.As long as peak value therefore being detected

Fig. 4 is signal detection algorithm flow chart.By people's normal respiratory rate less than 30 beats/min of calculating, then breathe frequency Segment limit is set to 0～0.5Hz.By 40 beats/min～the 160 beats/min calculating of people's heart rate range, heart beating band limits sets It is set to 0.6～2.7Hz.Therefore the amplitude frequency curve data to signal processing algorithm output carry out heart beating respectively and breathe frequency range Data cutout, then carry out maximum value search two frequency ranges respectively, corresponding frequency is i.e. respectively heart beating and respiratory frequency.

Step 1 also includes: providing inflator pump, air shut-off valve, described air shut-off valve is located at described inflator pump with described On the pipeline that air bag layer connects, described air shut-off valve connection air bag layer side pore and inflator pump, or connection air bag Layer side pore is with extraneous, or Guan Bi air bag side layer pore；

Described step 3 also includes air bag layer air pressure adjustment: according to peripheral operation or pre-set programs and described current gas Pressure value controls described inflator pump and described air shut-off valve, changes the air pressure in described air bag layer to target zone.

In the present embodiment, can be that the soft or hard of air bag in mattress is manually adjusted by user, i.e. user be in impression In the case of mattress is the softest, send control information control air valve connection inflator pump and inflation to described intelligent controlling device Bag layer, opens inflator pump and is inflated air bag layer, controls inflator pump and stop inflation after being inflated to the degree that user specifies, Keeping the aeration quantity of air bag, user obtains harder mattress impression.If user needs mattress is adjusted softness, then Send control information to described intelligent controlling device and connect outside air bag and pipeline with control air valve, it is achieved air bag Venting.

Described air bag layer air pressure adjustment process farther includes:

Step 31, obtains described target zone according to described peripheral operation or pre-set programs；

Step 32, compares current gas pressure value with described target zone,

If current gas pressure value belongs to target zone, do not regulate,

If current gas pressure value is more than target zone, controls air shut-off valve connection air bag layer side pore and the external world, put Gas blood pressure lowering until after current gas pressure value is down to described target zone, controlling air shut-off valve Guan Bi air bag side layer pore,

If current gas pressure value is less than target zone, controls air shut-off valve connection air bag layer side pore and inflator pump, open Inflator pump is inflated boosting until after current gas pressure value rises to described target zone, controlling air shut-off valve Guan Bi air bag Side layer pore also closes inflator pump.

Described first processes submodule regulates the soft or hard tune the most substantially achieving intelligence mattress to the aeration quantity of air bag layer Joint.Described air bag layer includes left airbag and right airbag；Described left airbag and right airbag are controlled by air described in respectively Valve, gas tube are connected with same inflator pump.Two gas tubes are respectively communicated with the left airbag of air bag layer and right airbag, can To realize to left airbag and the inflation respectively of right airbag or inflating simultaneously.In the present embodiment, air bag layer is divided into difference Air bag, the soft durometer of different air bag can be realized by the Based Intelligent Control of described intelligent controlling device and regulate respectively, Thus meet user's different parts, or the different soft and hard degree demand of multiple user.Such as can make head soft durometer and The independent regulation of health soft durometer；It can also be the soft durometer independent regulation of two lain positions of people on double bed.This enforcement Example is that adjustable the providing of soft durometer of mattress regulates possibility more flexibly.

The foregoing is only preferred embodiment of the present utility model, those skilled in the art know, without departing from this reality In the case of novel spirit and scope, these features and embodiment can be carried out various change or equivalent. It addition, under teaching of the present utility model, can modify to adapt to concrete feelings to these features and embodiment Condition and material are without departing from spirit and scope of the present utility model.Therefore, this utility model is not by disclosed herein The restriction of specific embodiment, it is new that the embodiment in the range of fallen with claims hereof broadly falls into this practicality The protection domain of type.

Claims (13)

1. an intelligent bed mattress system, it is characterised in that including: intelligent controlling device, baroceptor, mattress；Described mattress includes air bag layer；

Described baroceptor is connected to the air bag layer of described mattress, and detects the described air bag layer internal gas pressure of acquisition；Described intelligent controlling device is connected with described baroceptor, the change of the air bag layer internal gas pressure that described intelligent controlling device detects according to described baroceptor obtains human life characteristic on mattress, and on described mattress, human life characteristic includes respiratory frequency and/or palmic rate.

A kind of intelligent bed mattress system the most according to claim 1, it is characterised in that described intelligent controlling device includes pre-processing module and post-processing module；

The air pressure signal of the air bag layer that the detection of described baroceptor is obtained by described pre-processing module is transferred to described post-processing module after processing, and described post-processing module obtains respiratory frequency and/or the palmic rate of human body on mattress according to the air pressure signal after processing；Air pressure signal frequency after described process is less than or equal to 10Hz.

A kind of intelligent bed mattress system the most according to claim 2, it is characterised in that described post-processing module includes the second process submodule,

Described second processes the air pressure signal frequency-domain spectrum after submodule carries out fast Fourier transform acquisition process to the air pressure signal time-domain spectral after processing；

Described second peak value processing the air pressure signal frequency-domain spectrum after submodule obtains described process in default breathing band limits is output as described respiratory frequency；

Described second peak value processing the air pressure signal frequency-domain spectrum after submodule obtains described process in default heart beating band limits is output as described palmic rate.

A kind of intelligent bed mattress system the most according to claim 3, it is characterised in that the air pressure signal time-domain spectral after described process: s (t)=s_h(t)+s_b(t)+A；Wherein, heart beating voltage signal s_h(t)=A_h×sin(2πf_ht+θ_h), breathe voltage signal s_b(t)=A_b×sin(2πf_bt+θ_b), A_hAnd A_bIt is respectively heart beating and the amplitude of breathing, f_hAnd f_bIt is respectively and breathes and the frequency of heart beating, θ_hAnd θ_bIt is respectively and breathes and the initial phase of heart beating；

Described second process submodule to process after air pressure signal time-domain spectral carry out fast Fourier transform particularly as follows:

A kind of intelligent bed mattress system the most according to claim 3, it is characterised in that described post-processing module also includes network connexon module；Described second processes submodule is sent described respiratory frequency and palmic rate to other networked devices by described network connexon module.

A kind of intelligent bed mattress system the most according to claim 3, it is characterised in that described post-processing module also includes display module；Described second processes submodule shows to described display module in real time by described respiratory frequency and palmic rate transmission.

A kind of intelligent bed mattress system the most according to claim 2, it is characterized in that, described pre-processing module is connected by USB interface with described post-processing module, and described pre-processing module controls usb protocol and the air pressure signal after described process is transferred to described post-processing module.

A kind of intelligent bed mattress system the most according to claim 2, it is characterised in that also include inflator pump, air shut-off valve；Described air shut-off valve is located on the pipeline that described inflator pump is connected with described air bag layer；

Described pre-processing module controls described inflator pump and described air shut-off valve according to peripheral operation or pre-set programs and current gas pressure value, changes the air pressure in described air bag layer to target zone, thus regulates the soft or hard of described mattress；

Described air shut-off valve responds control connection air bag layer side pore and the inflator pump of described pre-processing module, or connection air bag layer side pore is with extraneous, or Guan Bi air bag side layer pore.

A kind of intelligent bed mattress system the most according to claim 8, it is characterised in that also including that external air chamber, described air bag layer connect with described external air chamber, it is indoor that described external gas is located at by described baroceptor.

A kind of intelligent bed mattress system the most according to claim 2, it is characterised in that described pre-processing module includes that filter and amplification submodule, described filter and amplification submodule include the first low pass filter, amplifier, the second low pass filter；Described baroceptor connects described first low pass filter, and described first low pass filter connects described amplifier, and described amplifier connects described second low pass filter；

Air pressure signal is filtering to signal frequency less than or equal to 10Hz by described first low pass filter, signal is amplified 0-350 times by described amplifier, and signal filtering to the signal frequency after described second low pass filter will amplify is less than or equal to the air pressure signal after 10Hz obtains described process.

11. a kind of intelligent bed mattress systems according to claim 10, it is characterised in that described pre-processing module also includes analog-digital converter, the first process submodule；

Described air pressure signal carries out the air pressure signal after analog digital conversion obtains described process through described analog-digital converter after described filter and amplification submodule processes, and described first processes submodule is sent to described post-processing module by the air pressure signal after described process.

12. a kind of intelligent bed mattress systems according to claim 8, it is characterised in that described pre-processing module also includes the first process submodule；

Described first processes submodule obtains current gas pressure value according to the air pressure signal after described process, and control described inflator pump and described air shut-off valve according to peripheral operation or pre-set programs and described current gas pressure value, change the air pressure in described air bag layer to target zone, thus regulate the soft or hard of described mattress.

13. a kind of intelligent bed mattress systems according to claim 12, it is characterised in that described pre-processing module also includes bluetooth submodule；Described first processes submodule by described bluetooth submodule and other bluetooth devices.