CN205795657U - A kind of device gathering sleep procedure centric(al) impact signal - Google Patents
A kind of device gathering sleep procedure centric(al) impact signal Download PDFInfo
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- CN205795657U CN205795657U CN201620611057.XU CN201620611057U CN205795657U CN 205795657 U CN205795657 U CN 205795657U CN 201620611057 U CN201620611057 U CN 201620611057U CN 205795657 U CN205795657 U CN 205795657U
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Abstract
This utility model relates to sleep signal detection field, particularly relates to a kind of device gathering sleep procedure centric(al) impact signal.Including piezoelectricity Acquisition Circuit and signal processing circuit, described piezoelectricity Acquisition Circuit is used for gathering piezoelectric signal, the piezoelectric signal outfan of piezoelectricity Acquisition Circuit is connected with the piezoelectric signal input of signal processing circuit, and described signal processing circuit is filtered and Signal separator for piezoelectric signal.Favourable data refer is provided for sleep quality monitoring process.
Description
Technical field
This utility model relates to sleep signal and gathers field, is specifically related to sleep procedure centric(al) impact signals collecting field.
Background technology
Sleep medicine prize sleep is divided into two big classes: the sleep of nonrapid eye movements (NREM) phase and rapid eye movement phase sleep, U.S. sleep doctor
Learn association and the sleep of nonrapid eye movements (NREM) phase is further divided into three different phases.For normal adults, a sleep cycle is logical
Often continue 90-100 minute, with 3 stages of nonrapid eye movements (NREM) phase, followed by rapid eye movement phase.Slept by record entirety
Recovery time in dormancy time, time for falling asleep, incubation period rapid eye movement phase, sleep procedure, Sleep efficiency, each Sleep stages time
Length and accounting, can carry out comprehensive grading to tested sleep quality, assess its sleep quality.
In sleep medicine, lead more hypnotic instrument be that typically in specific sleep laboratory be estimated Sleep stages and other
The laboratory facilities of sleep quality.The measurement used generally includes EEG signals, electro-ocular signal, electromyographic signal, and some also uses electrocardio
Signal.But lead more hypnotic instrument in use can additional a lot of sensors with tested, can be to test result and data
Accuracy produces interference.Such as strange to sleep experiments room environmental, the sense of discomfort of health pasted by sensor all can affect ability
Enough tested sleep qualities.
Along with the change of sleep phases, also there is corresponding physiological change in body, as heart rate, breathing, Digestive system divide
Secrete, muscle tone, body temperature etc..In the nonrapid eye movements (NREM) phase, breathing shallow, slow and uniform, heart rate is relatively slow, blood pressure drops, whole body flesh
Dried meat floss relaxes, but muscle still keeps certain tensity.In the rapid eye movement phase, the perceptive function of human body is than when the nonrapid eye movements (NREM) phase
Going down further, muscle is more lax, breathes slightly fast and irregular, and body temperature, the heart rate relatively last stage raises, heart rate the time after midnight relatively
Height, body part muscle group may occur in which slight twitch.Based on above-mentioned physiological change, except leading hypnotic instrument as goldstandard more
Outward, have also appeared many sleep analysis devices moving this kind of signal based on heart rate, breathing, body.
The most frequently used is exactly that body moves instrument, is the device of a kind of similar wrist palm, is used for monitoring collection and produces due to action
Raw data.Corresponding to field, household application market, it is simply that all kinds of bracelets on the market.Its basic principle is exactly to transport during sleeping
Momentum reduces, and under waking state, athletic meeting increases.But adopt the function being verified in this way be only to discriminate between clear-headed and
Sleep two states, also lack experimental verification Sleep stages is finely divided aspect.Even having declared to carry out sound sleep
Sleep and hypohyphnotic differentiation, also lack clear and definite theoretical basis.
Another kind of method is to utilize heart impact signal (ballistocardiogram, BCG), and the method is a kind of for remembering
The method of the physical shocks that record cardiomotility causes.Heart impact signal measure physical shocks except causing due to cardiomotility,
Also suffer from breathing the impact that body is dynamic.But, during tradition heart impact signal is measured, breathing and body move can be as noise
A part be removed；But in sleep medicine monitoring field, breathing dynamic with body is to need individually to extract as sleeping
One of index that dormancy judges.
The BCG application in sleep field is integrated on mattress in the early stage, is respectively induced the pressure change of each section of health, than
Such as Publication No.: CN1875880, publication date is: 2006-12-13, and utility model is entitled: monitoring sleep status and breathing barrier
The sensing device of part in the way, is wherein at least divided into two subregions (one, chest, leg one) by mattress, in each subregion exactly
Sealing fluid, fluid is preferably silicone oil, changes with sensor sensing annular seal space fluid pressure.The deformation of the program is by fluid
Refer in particular to as some gas, and be not merely liquid.This device volume is the biggest, and average price is higher, it is difficult to popularize.
The biggest owing to making the device volume of mattress formula, dispose inconvenience.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of device gathering sleep procedure centric(al) impact signal,
Purpose is to solve the breathing in the presence of existing heart impact signal gatherer process and body movement signal is removed as noise,
Cause sleep quality to judge inaccurate, and signal pickup assembly volume is big, cost is high, dispose inconvenient problem.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of collection sleep procedure centric(al) impact signal
Device include that piezoelectricity Acquisition Circuit and signal processing circuit, described piezoelectricity Acquisition Circuit are used for gathering piezoelectric signal, piezoelectricity is adopted
The piezoelectric signal outfan of collector is connected with the piezoelectric signal input of signal processing circuit, and described signal processing circuit is used for
Piezoelectric signal is filtered and Signal separator.
The beneficial effects of the utility model are: when sleep, piezoelectricity Acquisition Circuit is placed on mattress under chest
Side, directly measures the vibrations change of health.Putting position gradually simplifies, from several collecting units of the lower section of mattress
Become a collecting unit, move to below mattress below medicated pillow, dispose more flexible, reduce the use cost of user.
Meanwhile, it is capable to isolate the breath signal and body movement signal removed often as noise from vibration signal, further for sleeping
Dormancy quality monitoring process provides favourable data refer.
On the basis of technique scheme, this utility model can also do following improvement.
Further, between described piezoelectricity Acquisition Circuit and signal processing circuit, connection has Transient Suppression Diode.
Above-mentioned further scheme is used to provide the benefit that the moment height charge pulse being prevented from maloperation and produce.
Further, described signal processing circuit includes analog input circuit and miniature process circuit, described simulation input electricity
The piezoelectric signal input on road is connected with the piezoelectric signal outfan of piezoelectricity Acquisition Circuit, and the piezoelectric signal of analog input circuit is defeated
Go out end to be connected with the piezoelectric signal input of miniature process circuit.
Further, described analog input circuit includes charge amplifier, first-level filtering wave circuit, secondary filter circuit and gain
Amplifier, the piezoelectric signal input of described charge amplifier is connected with the piezoelectric signal outfan of piezoelectricity Acquisition Circuit, electric charge
The piezoelectric signal outfan of amplifier is connected with the piezoelectric signal input of first-level filtering wave circuit, the piezoelectricity letter of first-level filtering wave circuit
Number outfan is connected with the piezoelectric signal input of secondary filter circuit, the piezoelectric signal outfan of secondary filter circuit and gain
The piezoelectric signal input of amplifier connects, the piezoelectric signal outfan of gain amplifier and the piezoelectric signal of miniature process circuit
Input connects.
Use above-mentioned further scheme to provide the benefit that by first-level filtering wave circuit and can remove piezoelectric transducer wire
The external interference signals of coupling, the most again through a secondary filter circuit filtering interfering clutter again, improves collection signal
Quality, provide good guarantee for follow-up analysis and processing procedure.
Further, described first-level filtering wave circuit includes resistance R21, electric capacity C35 and amplifier U8B,
The normal phase input end of described amplifier U8B connects circuit charge amplifier,
One end after resistance R21 and electric capacity C35 parallel connection is connected with the inverting input of amplifier U8B,
The other end after resistance R21 and electric capacity C35 parallel connection even with the outfan of amplifier U8B and secondary filter circuit simultaneously
Connect.
Further, described secondary filter circuit include resistance R34, resistance R35, electric capacity C36, electric capacity C38, electric capacity C39 and
Amplifier U8A,
One end of described resistance R34 is connected with the outfan of amplifier U8B,
The other end of resistance R34 is connected with one end of one end, one end of electric capacity C36 and the electric capacity C38 of resistance R35 simultaneously,
The other end of resistance R35 is connected with one end of electric capacity C39 and the normal phase input end of amplifier U8A simultaneously,
The other end ground connection of electric capacity C39,
The outfan of amplifier U8A simultaneously with the inverting input of amplifier U8A, one end of electric capacity C36, electric capacity C38
One end and gain amplifier connect.
Further, described miniature process circuit includes analog to digital conversion circuit, static random access memory circuit, clock circuit
And demultiplexing circuit, the piezoelectric signal input of analog-digital conversion circuit as described connects with the piezoelectric signal outfan of gain amplifier
Connecing, the piezoelectric signal outfan of analog to digital conversion circuit is connected with the piezoelectric signal input of static random access memory circuit, quiet
The piezoelectric signal outfan of state random access memory circuit is connected with the piezoelectric signal input of clock circuit, the pressure of clock circuit
Electrical signal is connected with the piezoelectric signal input of demultiplexing circuit.
Above-mentioned further scheme is used to provide the benefit that: static random access memory circuit is used for carrying out system algorithm fortune
The data storage calculated, its response speed is fast, it is possible to ensure overall work efficiency.Configure real time clock circuit, Ke Yifu simultaneously
Auxiliary system determines when as possible dormant data, reduces simple relying on piezoelectric signal to carry out the error judging to be likely to occur.
Further, described device also includes external storage circuit, the storage signal input part of described external storage circuit with
The storage signal output part of miniature process circuit connects.
Further, described device also includes communicating circuit, and the communication signal input/output terminal of described communicating circuit is with miniature
The communication signal I/O processing circuit connects, and described communicating circuit uses RS232 interface circuit, WIFI circuit or bluetooth
Circuit realiration.
Above-mentioned further scheme is used to provide the benefit that: to use RS232 interface to realize communicating with computer, adjust for software
Examination and program update, and supporting computer end display interface uses；Use the downstream interlocking equipment communication of WIFI Circuits and Systems, send
Adjust and instruct to interlocking equipment, then performed by interlocking equipment；Use bluetooth and the portable intelligent mobile terminal such as mobile phone, flat board
Carry out communication.
Further, described device also includes watchdog circuit, the monitoring signal input output end of described watchdog circuit with
The monitoring signal I/O of miniature process circuit connects.
Above-mentioned further scheme is used to provide the benefit that: on the one hand watchdog circuit can monitor the operation of program in real time
Situation, resets program when program sideslip；On the other hand voltage can be monitored, if there is power voltage supply not
Steady situation, also can reset program.
Further, described device also includes the mutual circuit of user and Nixie tube drive circuit, described user mutual circuit bag
Including key circuit and display circuit, the push button signalling outfan of described key circuit inputs with the push button signalling of miniature process circuit
End connects, and the display signal input part of display circuit is connected with the display signal output part of miniature process circuit, and charactron drives
The driving signal input of circuit is connected with the driving signal output part of miniature process circuit, the driving letter of Nixie tube drive circuit
Number outfan is connected with the driving signal input of display circuit.
Use above-mentioned further scheme to provide the benefit that: user by the key circuit input pattern that shows of needs and
Time of Day, this Time of Day can be to show the current real-time time date, it is also possible to realizes timing function, and at a certain section
Information signal collected in time, and show that pattern includes heart rate characteristic parameter display circuit, respiratory characteristic display pattern
And body moves feature display pattern, it is possible to allow user have a clear understanding of the sleep quality situation in sleep procedure；This utility model is not
Directly controlled by miniature process circuit logarithmic code pipe, but switching Nixie tube drive circuit carries out charactron driving, from
And improve the stability of device.
Accompanying drawing explanation
Fig. 1 is the principle schematic of a kind of device gathering sleep procedure centric(al) impact signal described in the utility model；
Fig. 2 is first-level filtering wave circuit described in the utility model and the circuit diagram of secondary filter circuit.
In accompanying drawing, the list of parts representated by each label is as follows:
1, piezoelectricity Acquisition Circuit, 2, signal processing circuit, 3, analog input circuit, 4, miniature process circuit, 5, communication electricity
Road, 6, external storage circuit, 7, watchdog circuit, 8, the mutual circuit of user, 9, electric power management circuit.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this practicality
Novel, it is not intended to limit scope of the present utility model.
Embodiment 1
As it is shown in figure 1, a kind of device gathering sleep procedure centric(al) impact signal described in the present embodiment includes that piezoelectricity is adopted
Collector 1 and signal processing circuit 2, described piezoelectricity Acquisition Circuit 1 is used for gathering piezoelectric signal, the piezoelectricity of piezoelectricity Acquisition Circuit 1
Signal output part is connected with the piezoelectric signal input of signal processing circuit 2, and described signal processing circuit 2 is entered for piezoelectric signal
Row filtering and Signal separator.
Wherein piezoelectricity Acquisition Circuit 1 is used for detecting the change of the signal of telecommunication that pressure change brings, and piezoelectricity Acquisition Circuit 1 includes
At least one sensor unit, described sensor unit uses piezoelectric ceramics, piezoquartz or piezoelectric membrane to realize.
When sensor unit quantity is one, it is positioned at the center of sensor chassis, and sensor chassis can be
Circular, square or other arbitrary regular shapes.When sensor unit quantity is multiple, it can be evenly distributed on sensor
On chassis, or centered by one of them sensor unit, other residue sensor units with central sensor unit are
Center is uniformly distributed.Sensor chassis can be a kind of material, it is also possible to be to be spliced by bi-material.When a kind of material
During material, its mechanics transmission performance is consistent.When for bi-material, its mechanics transmission performance there are differences, wherein near periphery
Material mechanical performance is relatively poor, may filter that the power passed over outside sensor chassis scope.
Sensor unit described in the present embodiment uses the voltage variable materials such as piezoelectric ceramics, piezoelectric membrane and piezoquartz, nothing
Human body or medicated clothing need to be contacted, can be placed in below medicated pillow or mattress.When piezoelectricity Acquisition Circuit 1 prevents below mattress, if
Only one of which piezoelectricity Acquisition Circuit 1, it is placed in the upper limb position near thoracic cavity, if there being two piezoelectricity Acquisition Circuit 1, Ke Yiyi
Individual being placed on the upper limb position near thoracic cavity, another is placed on the lower limb position near leg, if needing to also have more
Piezoelectricity Acquisition Circuit 1, can dispose according to practical situation.
Preferably, described piezoelectric membrane uses PVDF thin film to realize.
PVDF thin film, i.e. PVDF membrane, be a kind of solid support conventional in western blotting.There is machine
The advantages such as tool intensity property high, mould proof, high-wearing feature, impact resistance are strong.
Preferably, between piezoelectricity Acquisition Circuit 1 and signal processing circuit 2, connection has Transient Suppression Diode.
Transient Suppression Diode is the high-effect protection device of a kind of diode, when the two poles of the earth of Transient Suppression Diode
During by reverse transient state high energy impact events, it is possible to 10-12The speed of second-time, becomes Low ESR by the high impedance of its two poles of the earth part,
Absorb the surge power of up to thousands of watts, make the voltage clamp of two interpolars in a predetermined value, be effectively protected in electronic circuit
Precision components, exempt from the damage of various surge pulse.
Preferably, signal processing circuit 2 includes analog input circuit 3 and miniature process circuit 4, described analog input circuit
The piezoelectric signal input of 3 is connected with the piezoelectric signal outfan of piezoelectricity Acquisition Circuit 1, the piezoelectric signal of analog input circuit 4
Outfan is connected with the piezoelectric signal input of miniature process circuit 4..
Described analog input circuit 3 includes that charge amplifier, first-level filtering wave circuit, secondary filter circuit and gain are amplified
Device, the piezoelectric signal input of described charge amplifier is connected with the piezoelectric signal outfan of piezoelectricity Acquisition Circuit 1, and electric charge amplifies
The piezoelectric signal outfan of device is connected with the piezoelectric signal input of first-level filtering wave circuit, and the piezoelectric signal of first-level filtering wave circuit is defeated
Going out end to be connected with the piezoelectric signal input of secondary filter circuit, the piezoelectric signal outfan of secondary filter circuit amplifies with gain
The piezoelectric signal input of device connects, and the piezoelectric signal outfan of gain amplifier is defeated with the piezoelectric signal of miniature process circuit 4
Enter end to connect.
The signal of telecommunication that piezoelectricity Acquisition Circuit 1 sends, through analog input circuit, first passes through charge amplifier and is believed by piezoelectricity
The charge pulse generated in number gatherer process is converted to voltage, removes sensor conductor coupling through a first-level filtering wave circuit
External interference signals, the most again through a secondary filter circuit filtering interfering clutter again, eventually passes gain amplifier pair
Signal is amplified.
Preferably, as in figure 2 it is shown,
Described first-level filtering wave circuit includes resistance R21, electric capacity C35 and amplifier U8B,
The normal phase input end of described amplifier U8B connects charge amplifier,
One end after resistance R21 and electric capacity C35 parallel connection is connected with the inverting input of amplifier U8B,
The other end after resistance R21 and electric capacity C35 parallel connection even with the outfan of amplifier U8B and secondary filter circuit simultaneously
Connect.
Described secondary filter circuit includes resistance R34, resistance R35, electric capacity C36, electric capacity C38, electric capacity C39 and amplifier
U8A,
One end of described resistance R34 is connected with the outfan of amplifier U8B,
The other end of resistance R34 is connected with one end of one end, one end of electric capacity C36 and the electric capacity C38 of resistance R35 simultaneously,
The other end of resistance R35 is connected with one end of electric capacity C39 and the normal phase input end of amplifier U8A simultaneously,
The other end ground connection of electric capacity C39,
The outfan of amplifier U8A simultaneously with the inverting input of amplifier U8A, one end of electric capacity C36, electric capacity C38
One end and gain amplifier connect.
Preferably, described miniature process circuit 4 includes analog to digital conversion circuit, static random access memory circuit, clock electricity
Road and demultiplexing circuit, the piezoelectric signal input of analog-digital conversion circuit as described and the piezoelectric signal outfan of gain amplifier
Connecting, the piezoelectric signal outfan of analog to digital conversion circuit is connected with the piezoelectric signal input of static random access memory circuit,
The piezoelectric signal outfan of static random access memory circuit is connected with the piezoelectric signal input of clock circuit, clock circuit
Piezoelectric signal outfan is connected with the piezoelectric signal input of demultiplexing circuit.
The piezoelectric signal that piezoelectricity Acquisition Circuit 1 collects belongs to vibration signal, the Signal separator electricity in miniature process circuit 4
The vibration signal collected is separated as pulse signal, breath signal and three kinds of sign of body movement signal by road, it is also possible to only carry
Take any one or two kinds therein, after the data of acquisition time length 1, from pulse signal, extract heart rate characteristic parameter,
From breath signal, extract respiratory characteristic parameter, from body movement signal, extract body move characteristic parameter.Three kinds of signs extract spy
Levying time span used by parameter can be identical, it is also possible to different, and wherein part is extracted by the data of time span 1, part
Extracted by the data of time span 2.Heart rate characteristic parameter includes that heart rate, respiratory characteristic parameter include that breathing rate, body move feature
Parameter includes that body moves number of times.If heart rate characteristic parameter includes heart rate, after the multiple time span of repeated acquisition 1, can draw
Go out heart rate trend curve.If respiratory characteristic parameter includes breathing rate, after the multiple time span of repeated acquisition 1, can draw
Go out breathing rate trend curve.If body moves characteristic parameter includes that body moves number of times, after the multiple time span of repeated acquisition 1, permissible
Draw out body and move frequency trend curve.From the angle of time-triggered protocol, three sign trend curves can extract further and exhale
Suction mode, heart and body dynamic model formula, the definition of pattern includes the baseline value of trend curve, the speed of pace of change, trend
Change direction (monotonic decreasing, monotone increasing, become rising or becoming declining from rising from decline), in a period of time length 3
The upper difference of variance in meansigma methods, a period of time length 3, adjacent values (or spaced points quantity is indefinite) more than threshold value 1 ratio,
The upper difference of adjacent values (or spaced points quantity is indefinite) is more than the ratio of certain proportion threshold value 1 of meansigma methods, adjacent values difference
The index such as root-mean-square.From the angle of frequency processing, the trend curve energy in special frequency channel can be extracted, generally can be divided into
The energy of few 2 different frequency ranges.If common heart rate frequency range is divided into extremely low frequency composition (0.003～0.04hz, VLF), low
Frequently composition (0.04～0.15hz, LF), radio-frequency component (0.15～0.4Hz, HF).Frequency energy index includes the energy of different frequency range
Amount, gross energy TP and LF/ (TP-VLF), LF/ (LF+HF), HP/ (TP-VLF), HF/ (LF+HF) these ratio values.
In addition to trend curve, characteristic parameter can also from sign extracting directly, such as limit amplitude and
Maximum is to the area (being surrounded with datum line) between minimum.
Preferably, described device also includes external storage circuit 6, the storage signal input part of described external storage circuit 6
It is connected with the storage signal output part of miniature process circuit 4.
External storage circuit 6 result data postrun to system stores, in order to subsequent analysis is called.
Preferably, described device also includes communicating circuit 5, and the communication signal input/output terminal of described communicating circuit is with miniature
The communication signal I/O processing circuit 4 connects, and described communicating circuit 5 uses RS232 interface circuit, WIFI circuit or indigo plant
Tooth circuit realiration.
Wherein communicating circuit 5 has three kinds of modes to realize, and the first is to use RS232 interface circuit to be connected realization with computer to lead to
News, update for software debugging and program, and supporting computer end display interface uses；The second is to use WIFI circuit realiration, uses
In the downstream interlocking equipment communication with system, send adjustment and instruct to interlocking equipment, then performed by interlocking equipment；The third is to adopt
Communication is carried out with Bluetooth circuit and the Portable intelligent terminal such as mobile phone, flat board.
Preferably, described device also includes watchdog circuit 7, the monitoring signal input output end of described watchdog circuit 7
It is connected with the monitoring signal I/O of miniature process circuit 4.
In the present embodiment, watchdog circuit 7 has two functions, and first is the ruuning situation monitoring program in real time, in program
During sideslip, program is reset；Second is voltage monitoring function, if there is the situation that power voltage supply is unstable, and also can be by program
Reset.
Preferably, described device also includes the mutual circuit of user 8 and Nixie tube drive circuit, the mutual circuit of described user 8
Push button signalling including key circuit and display circuit, the push button signalling outfan of described key circuit and miniature process circuit 4
Input connects, and the display signal input part of display circuit is connected with the display signal output part of miniature process circuit 4, charactron
The driving signal input of drive circuit is connected with the driving signal output part of miniature process circuit 4, Nixie tube drive circuit
Signal output part is driven to be connected with the driving signal input of display circuit.
User needs pattern and the Time of Day of display by key circuit input, and this Time of Day can be that display is worked as
The front real-time time date, it is also possible to realize timing function, and information signal collected within certain a period of time, and show mould
Formula includes heart rate characteristic parameter display circuit, respiratory characteristic display pattern and body and moves feature display pattern, simultaneously can be right
The baseline value of trend curve, the speed of pace of change, Long-term change trend direction (monotonic decreasing, monotone increasing, from decline becomes
Rise, become declining from rising), the meansigma methods (ANN) in a period of time length 3, the variance in a period of time length 3, consecutive number
The upper difference of value (or spaced points quantity is indefinite) is big more than the ratio of threshold value 1, the upper difference of adjacent values (or spaced points quantity is indefinite)
In the ratio of certain proportion threshold value 1, these indexs root mean square of adjacent values difference of ANN, and heart rate frequency range is divided into pole
Low-frequency component (0.003～0.04hz, VLF), low-frequency component (0.04～0.15hz, LF), radio-frequency component (0.15～0.4Hz,
HF).Frequency energy index includes the energy of different frequency range, gross energy TP and LF/ (TP-VLF), LF/ (LF+HF), HP/ (TP-
VLF), HF/ (LF+HF) these ratio values show.User can be allowed to have a clear understanding of the sleep quality situation in sleep procedure.
Preferably, described display circuit uses 8 segment numeral pipes to realize.
The present embodiment is not directly controlled by miniature process circuit logarithmic code pipe, but switching Nixie tube drive circuit
Carry out charactron driving, thus improve the stability of device.
Preferably, described device also includes the electric power management circuit 9 for being powered to the internal each circuit of device, described
Electric power management circuit 9 includes two low pressure difference linear voltage regulators, for powering to amplifier for supercharging.
Electric power management circuit can be by the way of externally fed be taked by mains adapter, it is also possible to use internal cell
Power supply, mode is flexible, is individually powered gain amplifier by two low pressure difference linear voltage regulators, improves stablizing of device
Property.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width
Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " suitable
Hour hands ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings
Or position relationship, be for only for ease of describe this utility model and simplify describe rather than instruction or hint indication device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
It is mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements, unless otherwise clear and definite restriction.Common skill for this area
For art personnel, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
In above-described embodiment can be changed, revise, replace and modification.
Claims (11)
1. the device gathering sleep procedure centric(al) impact signal, it is characterised in that it includes piezoelectricity Acquisition Circuit (1) and letter
Number process circuit (2), described piezoelectricity Acquisition Circuit (1) is used for gathering piezoelectric signal, and the piezoelectric signal of piezoelectricity Acquisition Circuit (1) is defeated
Going out end to be connected with the piezoelectric signal input of signal processing circuit (2), described signal processing circuit (2) is for the filter of piezoelectric signal
Ripple and Signal separator.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 1, it is characterised in that piezoelectricity is adopted
Connect between collector (1) and signal processing circuit (2) and have Transient Suppression Diode.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 1, it is characterised in that at signal
Reason circuit (2) includes analog input circuit (3) and miniature process circuit (4), and the piezoelectric signal of described analog input circuit (3) is defeated
Entering end to be connected with the piezoelectric signal outfan of piezoelectricity Acquisition Circuit (1), the piezoelectric signal outfan of analog input circuit (4) is with micro-
Type processes the piezoelectric signal input of circuit (4) and connects.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 3, it is characterised in that described mould
Intending input circuit (3) and include charge amplifier, first-level filtering wave circuit, secondary filter circuit and gain amplifier, described electric charge is put
The big piezoelectric signal input of device is connected with the piezoelectric signal outfan of piezoelectricity Acquisition Circuit (1), the piezoelectricity letter of charge amplifier
Number outfan is connected with the piezoelectric signal input of first-level filtering wave circuit, the piezoelectric signal outfan of first-level filtering wave circuit and two grades
The piezoelectric signal input of filter circuit connects, the piezoelectricity letter of the piezoelectric signal outfan of secondary filter circuit and gain amplifier
Number input connects, and the piezoelectric signal outfan of gain amplifier is connected with the piezoelectric signal input of miniature process circuit (4).
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 4, it is characterised in that described one
Level filter circuit includes resistance R21, electric capacity C35 and amplifier U8B,
The normal phase input end of described amplifier U8B connects charge amplifier,
One end after resistance R21 and electric capacity C35 parallel connection is connected with the inverting input of amplifier U8B,
The other end after resistance R21 and electric capacity C35 parallel connection is connected with outfan and the secondary filter circuit of amplifier U8B simultaneously.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 5, it is characterised in that described two
Level filter circuit includes resistance R34, resistance R35, electric capacity C36, electric capacity C38, electric capacity C39 and amplifier U8A,
One end of described resistance R34 is connected with the outfan of amplifier U8B,
The other end of resistance R34 is connected with one end of one end, one end of electric capacity C36 and the electric capacity C38 of resistance R35 simultaneously,
The other end of resistance R35 is connected with one end of electric capacity C39 and the normal phase input end of amplifier U8A simultaneously,
The other end ground connection of electric capacity C39,
The outfan of amplifier U8A simultaneously with the inverting input of amplifier U8A, one end of electric capacity C36, one end of electric capacity C38
Connect with gain amplifier.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 4, it is characterised in that described micro-
Type processes circuit (4) and includes analog to digital conversion circuit, static random access memory circuit, clock circuit and demultiplexing circuit, institute
The piezoelectric signal outfan of the piezoelectric signal input and gain amplifier of stating analog to digital conversion circuit is connected, analog to digital conversion circuit
Piezoelectric signal outfan is connected with the piezoelectric signal input of static random access memory circuit, static random access memory circuit
Piezoelectric signal outfan be connected with the piezoelectric signal input of clock circuit, the piezoelectric signal outfan of clock circuit and signal
The piezoelectric signal input of split circuit connects.
8., according to a kind of device gathering sleep procedure centric(al) impact signal described in any one of claim 1-7, its feature exists
In, described device also includes external storage circuit (6), the storage signal input part of described external storage circuit (6) and miniature place
The storage signal output part of reason circuit (4) connects.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 8, it is characterised in that described dress
Put and also include communicating circuit (5), the communication letter of the communication signal input/output terminal of described communicating circuit and miniature process circuit (4)
Number I/O connects, and described communicating circuit (5) uses RS232 interface circuit, WIFI circuit or Bluetooth circuit to realize.
A kind of device gathering sleep procedure centric(al) impact signal the most according to claim 9, it is characterised in that described
Device also includes watchdog circuit (7), the monitoring signal input output end of described watchdog circuit (7) and miniature process circuit
(4) monitoring signal I/O connects.
11. a kind of devices gathering sleep procedure centric(al) impact signal according to claim 10, it is characterised in that described
Device also includes that the mutual circuit of user (8) and Nixie tube drive circuit, the mutual circuit of described user (8) include key circuit and show
Showing circuit, the push button signalling outfan of described key circuit is connected with the push button signalling input of miniature process circuit (4), display
The display signal input part of circuit is connected with the display signal output part of miniature process circuit (4), driving of Nixie tube drive circuit
Dynamic signal input part is connected with the driving signal output part of miniature process circuit (4), and the driving signal of Nixie tube drive circuit is defeated
Go out end to be connected with the driving signal input of display circuit.
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| CN201620611057.XU CN205795657U (en) | 2016-06-17 | 2016-06-17 | A kind of device gathering sleep procedure centric(al) impact signal |
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| CN201620611057.XU CN205795657U (en) | 2016-06-17 | 2016-06-17 | A kind of device gathering sleep procedure centric(al) impact signal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092810A (en) * | 2017-06-28 | 2017-08-25 | 深圳市苏仁智能科技有限公司 | Human body physical sign data collection station and data processing equipment based on piezoelectric sensing band |
| CN108304822A (en) * | 2018-02-23 | 2018-07-20 | 余海波 | Signal processing apparatus and method |
| CN111160090A (en) * | 2019-11-22 | 2020-05-15 | 新绎健康科技有限公司 | BCG signal noise reduction method and system |
| CN111938621A (en) * | 2020-06-29 | 2020-11-17 | 杨铭轲 | Heart rate detection method and device, computer equipment and readable storage medium |
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2016
- 2016-06-17 CN CN201620611057.XU patent/CN205795657U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107092810A (en) * | 2017-06-28 | 2017-08-25 | 深圳市苏仁智能科技有限公司 | Human body physical sign data collection station and data processing equipment based on piezoelectric sensing band |
| CN108304822A (en) * | 2018-02-23 | 2018-07-20 | 余海波 | Signal processing apparatus and method |
| CN111160090A (en) * | 2019-11-22 | 2020-05-15 | 新绎健康科技有限公司 | BCG signal noise reduction method and system |
| CN111160090B (en) * | 2019-11-22 | 2023-09-29 | 新绎健康科技有限公司 | BCG signal noise reduction method and system |
| CN111938621A (en) * | 2020-06-29 | 2020-11-17 | 杨铭轲 | Heart rate detection method and device, computer equipment and readable storage medium |
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