CN205758555U - A kind of detection device of human body respiration - Google Patents
A kind of detection device of human body respiration Download PDFInfo
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- CN205758555U CN205758555U CN201620368224.2U CN201620368224U CN205758555U CN 205758555 U CN205758555 U CN 205758555U CN 201620368224 U CN201620368224 U CN 201620368224U CN 205758555 U CN205758555 U CN 205758555U
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Abstract
The detection device of a kind of human body respiration that this utility model embodiment provides, including ultra-wide band module, main control module, Anneta module and communication module, ultra-wide band module described in described master control module controls sends pulsed radar signal arrival torso model surface and reflects, produce echo-signal, after Anneta module receives described echo-signal, described echo-signal is sent to described main control module process, when the pulse ripple of described echo-signal is not up to level threshold value, judge that human body respiration occurs abnormal, described communication module sends warning information to corresponding family members, to carry out rescue, achieve the effect remotely monitoring human body respiration, solve existence intelligence nurse robot in prior art simultaneously and can not monitor the vital sign of personnel on the scene, the especially problem of human body respiration.
Description
Technical field
This utility model relates to non-contact vital sign monitoring technical field, particularly relates to the detection of a kind of human body respiration
Device.
Background technology
Non-contact vital sign monitoring technology plays an important role in medical treatment, nursing old people.Ultra-wide band
(UWB) pulse radar has good penetrance and higher spatial resolution, and is contactless so that it becomes intelligence
The solution of the monitoring health that home-services robot is indispensable.Traditional continuous-wave radar system speed to target
Degree infomation detection is sensitive, and insensitive to the range information of target.Owing to continuous wave radar is continuously transmitting electromagnetic wave, so
It is launched and reception system is isolated relatively difficult between the two, thus causes its capacity of resisting disturbance and target information extractability very
Difficult it is improved largely.Revealing additionally, continuous wave radar easily produces signal, the transmitting signal of its transmitter and noise thereof are straight
Connect and be leaked to receiver, add the extraction difficulty of target signature information.
But, prior art exists intelligent nurse robot and can not monitor the vital sign of personnel on the scene, especially people
The problem that body is breathed.
Utility model content
This utility model purpose is to provide the detection device of a kind of human body respiration, it is intended to solve to there is intelligence in prior art
The problem that robot can not monitor the vital sign of personnel on the scene, especially human body respiration can be nursed.
This utility model provides the detection device of a kind of human body respiration, and described detection device includes:
Ultra-wide band module；
It is connected with described ultra-wide band module, controls described ultra-wide band module and send pulsed radar signal arrival torso model
Surface carries out reflecting, producing the main control module of echo-signal；
It is connected with described main control module, receives described echo-signal and described echo-signal is sent to described master control
Module carries out the Anneta module processed；
It is connected with described main control module, when the pulse ripple of described echo-signal is not up to level threshold value, it is judged that people
Body is breathed to be occurred extremely, and sends the communication module of warning information.
In said structure, described echo-signal includes the periodic duty information in thoracic cavity.
In said structure, described control system also includes:
It is connected with described main control module and Anneta module simultaneously, the echo-signal that described Anneta module receives is filtered
Ripple, and it is sent to the high-pass filtering module of described main control module.
In said structure, described control system also includes:
It is connected with described main control module, the memory module that described echo-signal is preserved.
In said structure, described control system also includes:
It is connected with described main control module, the power module that described detection device is powered.
In said structure, described main control module includes that a main control chip U1, described main control chip U1 include:
Main control end CTRL, receiving terminal RXD, power end Bat-VCC, storage end MEM and transmission ends FTP；
Described main control end CTRL connects described ultra-wide band module, and described receiving terminal RXD connects described high-pass filtering module, described electricity
Source Bat-VCC connects described power module, and described storage end MEM connects described memory module, and described transmission ends FTP connects described communication
Module.
In said structure, described ultra-wide band module includes a ultra-wide band transceiving chip U2, described ultra-wide band transceiving chip U2
Including:
Control end ctrl；
Described control end ctrl connects main control end CTRL of described main control chip U1.
In said structure, described high-pass filtering module includes that a filtering chip U4, described filtering chip U4 include:
Transmitting terminal Send and filtering end Filt；
Described transmitting terminal Send meets the receiving terminal RXD of described main control chip U1, described filtering end Filt and connects described antenna mould
Block.
In said structure, described Anneta module includes that antenna chip U3, described antenna chip U3 include:
Transmitting terminal TXD；
Described transmitting terminal TXD meets the filtering end Filt of described filtering chip U4.
In said structure, described communication module includes that a communication chip U5, described communication chip U5 include:
Transmission end RTP；
Described transmission end RTP connects transmission ends FTP of described main control chip U1.
In sum, the detection device of a kind of human body respiration that this utility model embodiment provides, including ultra-wide band module,
Main control module, Anneta module and communication module, ultra-wide band module described in described master control module controls send pulsed radar signal to
Reach torso model surface to carry out reflecting, producing echo-signal, after Anneta module receives described echo-signal, described echo is believed
Number being sent to described main control module processes, when the pulse ripple of described echo-signal is not up to level threshold value, it is judged that people
Body is breathed to be occurred extremely, and described communication module sends warning information to corresponding family members, in order to carry out rescue, it is achieved that remotely monitor
The effect of human body respiration, solves existence intelligence nurse robot in prior art simultaneously and can not monitor the life entity of personnel on the scene
Levy, the problem of especially human body respiration.
Accompanying drawing explanation
The modular structure schematic diagram of the detection device of a kind of human body respiration that Fig. 1 provides for this utility model one embodiment.
The electrical block diagram of the detection device of a kind of human body respiration that Fig. 2 provides for this utility model one embodiment.
The amplitude of the human body respiration of the detection device of a kind of human body respiration that Fig. 3 provides for this utility model one embodiment is bent
Line schematic diagram.
The operating diagram of the detection device of a kind of human body respiration that Fig. 4 provides for this utility model one embodiment.
The workflow schematic diagram of the detection device of a kind of human body respiration that Fig. 5 provides for this utility model one embodiment.
The passband of the low pass filter of the detection device of a kind of human body respiration that Fig. 6 provides for this utility model one embodiment
Characteristic schematic diagram.
The actual monitoring of respiration curve of the detection device of a kind of human body respiration that Fig. 7 provides for this utility model one embodiment
Figure.
The flow chart of steps of the detection method of a kind of human body respiration that Fig. 8 provides for another embodiment of this utility model.
Detailed description of the invention
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearer, below
In conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that described herein being embodied as
Example, only in order to explain this utility model, is not used to limit this utility model.
The detection device of a kind of human body respiration that this utility model embodiment provides, is mainly used in passing through non-contact detection
Human body respiration, and take rescue measure when human body respiration occurs abnormal.
Fig. 1 shows the modular structure of the detection device of a kind of human body respiration that this utility model one embodiment proposes, for
Facilitate explanation, illustrate only the part relevant to this utility model embodiment.
A kind of detection device of human body respiration, described detection device includes:
Ultra-wide band module 102；
It is connected with described ultra-wide band module 102, controls described ultra-wide band module 102 and send pulsed radar signal to intelligent
Surface, body thoracic cavity carries out reflecting, producing the main control module 101 of echo-signal；
It is connected with described main control module 101, receives described echo-signal and described echo-signal is sent to described master
Control module carries out the Anneta module 103 processed；
It is connected with described main control module 101, when the pulse ripple of described echo-signal is not up to level threshold value, it is judged that
Human body respiration occurs abnormal, and sends the communication module 105 of warning information.
As this utility model one embodiment, the described main control module echo-signal to receiving carries out process and includes judging
Whether the pulse ripple of described echo-signal reaches level threshold value, in this way, then shows that human body respiration occurs abnormal.
As this utility model one embodiment, described echo-signal includes the periodic duty information in thoracic cavity, is i.e. to breathe letter
Breath.
As this utility model one embodiment, described detection device also includes:
It is connected with described main control module 101 and Anneta module 103, the echo letter that described Anneta module 103 is received simultaneously
Number it is filtered, and is sent to the high-pass filtering module 104 of described main control module 101.
As this utility model one embodiment, described detection device also includes:
It is connected with described main control module 101, the memory module 106 that described echo-signal is preserved.
As this utility model one embodiment, described detection device also includes:
It is connected with described main control module 101, the power module 107 that described detection device is powered.
As this utility model one embodiment, ultra-wide spectrum radar has the feature of big bandwidth, extracts in vital sign information
Aspect has the advantage of its uniqueness.Strong anti-interference performance.Ultra wideband radar system has bigger processing gain, when launching by micro-
Weak wireless pulse signals disperse is in broad frequency band, and output ratio is relatively low, between this external signal and interference noise
Dependency ratio is relatively low, and the dutycycle of interference is the lowest, and ultra-wide spectrum radar signal has high range resolution.Due to ultra broadband thunder
Reach the employing burst pulse docking collection of letters number to select, and its opposite band is roomy, can be with many scattering points of resolution target, by this
The echo-signal accumulation of a little scattering points, improves signal to noise ratio so that it is resolving power can reach centimetres.There is good mesh simultaneously
Mark identification ability.Owing to the time of radar transmitted pulse is short, the response of target zones of different can be made to separate, make the characteristic of target
Prominent, thus be conducive to extracting clarification of objective information.
When pulsed radar signal detects human body, the surface, thoracic cavity that the electromagnetic pulse of radar emission can be detected personnel is anti-
Penetrate and produce echo.The periodic undulations athletic meeting on the surface, thoracic cavity that human body respiration motion causes makes pulse at human body and radar
Between periodically to change time delay of travel back.The reflection echo on torso model surface forms one in slow time domain
Periodic signal.We detect this periodic signal in echo data, and in experiment, the breath signal of extraction is as noise reference signal,
With carry breathing simultaneously, the signal of palmic rate composition carries out self-adaptive processing, thus realizes the elimination of respiratory noise, detect
Heartbeat waveform.The old heart rate situation when sleep can be monitored in robot application, prevent that cardiopalmus or the heart from occurring old age
The situations such as dirty all standing, notify family members the most in time.
As this utility model one embodiment, this utility model one embodiment provides the detection device of a kind of human body respiration,
Ultra-wide band module and sky is had on described detection device (aspects such as robot, smart mobile phone, computer, intelligent appliance can be expanded to)
Wire module, can detect vital signs, including human body respiration by launching and receiving ultra-wide band (UWB) pulsed radar signal.
Fig. 2 shows the circuit structure of the detection device of a kind of human body respiration that this utility model one embodiment proposes, for
Facilitate explanation, illustrate only the part relevant to this utility model embodiment.
As this utility model one embodiment, described main control module 101 includes a main control chip U1, described main control chip U1
Including:
Main control end CTRL, receiving terminal RXD, power end Bat-VCC, storage end MEM and transmission ends FTP；
Described main control end CTRL connects described ultra-wide band module 102, and described receiving terminal RXD connects described high-pass filtering module 104,
Described power end Bat-VCC connects described power module 107, and described storage end MEM connects described memory module 106, described transmission ends
FTP connects described communication module 105.In the present embodiment, main control chip U1 have employed the microprocessor that model is ATSAM4E16E
Chip, certainly, the model of microprocessor chip does not limits, as long as can reach and the function described in the present embodiment main control chip U1
Effect also may be used.
As this utility model one embodiment, described ultra-wide band module 102 includes a ultra-wide band transceiving chip U2, described super
Bandwidth transceiving chip U2 includes:
Control end ctrl；
Described control end ctrl connects main control end CTRL of described main control chip U1.In the present embodiment, ultra-wide band transmitting-receiving core
Sheet U2 have employed the ultra-wide band transceiving chip that model is CC2400, and certainly, the model of ultra-wide band transceiving chip does not limits, as long as
Can reach also may be used with the function described in the present embodiment ultra-wide band transceiving chip U2.
As this utility model one embodiment, described high-pass filtering module 104 includes a filtering chip U4, described filtering core
Sheet U4 includes:
Transmitting terminal Send and filtering end Filt；
Described transmitting terminal Send meets the receiving terminal RXD of described main control chip U1, described filtering end Filt and connects described antenna mould
Block.In the present embodiment, filtering chip U4 have employed the filtering chip that model is HF3800, and certainly, the model of filtering chip is not
Limit, as long as can reach also may be used with the function described in the present embodiment filtering chip U4.
As this utility model one embodiment, described Anneta module 103 includes antenna chip U3, described antenna chip U3
Including:
Transmitting terminal TXD；
Described transmitting terminal TXD meets the filtering end Filt of described filtering chip U4.In the present embodiment, antenna chip U3 uses
Model is the antenna chip of PT2272, and certainly, the model of antenna chip does not limits, as long as can reach and the present embodiment antenna
Function described in chip U3 also may be used.
As this utility model one embodiment, described communication module 105 includes a communication chip U5, described communication chip U5
Including:
Transmission end RTP；
Described transmission end RTP connects transmission ends FTP of described main control chip U1.In the present embodiment, communication chip U5 uses
Model is the communication chip of TMS320C6203, and certainly, the model of communication chip does not limits, as long as can reach and this enforcement
Function described in example communication chip U5 also may be used.
As this utility model one embodiment, described memory module 106 includes a storage chip U6, described storage chip U6
Including:
Store end mem；
Described storage end mem meets the storage end MEM of described main control chip U1.In the present embodiment, storage chip U6 uses
Model is the storage chip of PC5300, and certainly, the model of storage chip does not limits, as long as can reach and the present embodiment storage
Function described in chip U6 also may be used.
As this utility model one embodiment, described power module 107 includes:
Alternating current power supply VCC；
Described alternating current power supply VCC meets the power end Bat-vcc of described main control chip U1.
Fig. 3 shows shaking of the human body respiration of the detection device of a kind of human body respiration that this utility model one embodiment provides
Width curve synoptic diagram, for convenience of explanation, illustrate only the part relevant to this utility model embodiment.
Microprocessor module includes power supply indicator, JTAG simulation architecture, RS232 communication interface and resetting structure.Micro-place
Reason device module uses the chip of the ARM-Smart structure of altera corp, and model is ATSAM4E16E, and this module has computing speed
Degree height, the advantage that real-time controlling is strong.Chip has 128KB on-chip SRAM, the internal Flash of 16KB ROM, 1024KB, 1 tunnel
USB 2.0FS Device, 4 16, tunnel PWM, 2 road UART (1 road and SPI sheet select multiplexing), 2 road USART, 2 road TWI (1 road and
JTAG multiplexing), 1 road SD/SDIO/MMC, 1 road SPI, 1 road NAND controller, 1 road EMAC controller, support 16 AFEC, 1 tunnel 2
Channel 12-Bit DAC, the highest can run under the frequency of 120M, and can realize quickly processing data, supports multiple communication
Agreement.
In the environment of low signal-to-noise ratio, can there are some static clutters in UWB ultra-wide band system when sending with reception signal,
White noise and other harmonic interference signals, so for the measurement work completing necessity, needing to solve clutter reduction interference
The superposition of signal, makes ultra-wide band receive system and is capable of the normal echo-signal of reception of relatively low interference, improve echo data
Signal to noise ratio.Having FIR low-pass filtering algorithm in existing algorithm, MS algorithm and LTS algorithm etc., these several algorithms have deficiency
Place, MS algorithm can filter static state noise signal, but additive white noise and harmonic wave interference etc. are not just had
Corresponding effect, although and LTS algorithm can static noise and linear waveform interference the most always, but other are disturbed nothing
Can be power, and its operand is relatively big, is restricted by processor operational performance, FIR low-pass filtering algorithm can be fallen into a trap at filtering
Calculation amount is relatively big, has needed FFT computing in the microcontroller, and has needed to add window filtering, but benefit is signal distortion
Little, the extraction of more effective information can be completed.
Due to existing pulse radar breath signal detection threshold judgement algorithm often centralized detecting signal in once
Harmonic wave, and have ignored the effect during detection of other order harmonic, this causes existing decision algorithm underusing to be exhaled
Inhale the energy of signal, cause loss of data, do not accomplish optimal detection.Therefore, it is specifically designed to the week that detection comprises multiple harmonic wave
The detection algorithm of phase signal is particularly suited for detecting breath signal.And on the basis of filtering algorithm, improve it and move
State response characteristic, completes quickly to filter, and can know that human body effectively breathes response signal.
By human body respiration signal modeling being known the rule of human body respiration signal.Can be more by the even number power of cosine function
The respiratory movement of human body is described accurately.Based on the studies above achievement, the even number power of cosine function is used to simulate by breathing
Surface, the thoracic cavity radial motion that motion causes.When a people faces robot, be such as detected the surface, thoracic cavity of personnel with
Radial distance between radar is affected being moved by human body respiration.If expressing, with L (t), the change that torso model rises and falls,
According to up-to-date achievement in research expression formula it is
L (t)=D-B (cos (π * f*t))n
Wherein D represents the space length of intelligent robot ultra-wide band sensor and human body, and B represents thoracic cavity or the breast of human body
The fluctuating size of the medicated clothing of chamber money, typically at the amplitude of 10mm to 20mm, wherein f is the frequency of human body respiration, and n is cosine function
Even power, this expression formula is closest to the amplitude curve of human body respiration.
Fig. 4 shows the operating diagram of the detection device of a kind of human body respiration that this utility model one embodiment provides,
For convenience of explanation, illustrate only the part relevant to this utility model embodiment.
In real work, after the controller of ARM kernel powers on, wake up ultra-wide band sensor core up by RESET interface
Sheet, and the work of X2 ultra-wide band sensor is started by SPI interface, X2 has been internally integrated an emitter, a receptor
With relevant control circuit, system is configured with the Serial Peripheral Interface (SPI) of 4 lines, an integrated low noise amplification in RX path RX
Device and the ADC analog-digital converter of 256.
Fig. 5 shows the workflow signal of the detection device of a kind of human body respiration that this utility model one embodiment proposes
Figure, for convenience of explanation, illustrate only the part relevant to this utility model embodiment.
When a system is powered up, supply voltage is+3.3V, and ATSAM4E16E chip proceeds by self-check program, and externally
If resetting accordingly and initialization operation, ATSAM4E16E chip sends life by four line full duplex SPI communication interfaces
Making to ultra-wide band sensor, ultra-wide band sensor sends ultra-wide band signal, when ultra-wide band signal touching human body, same send
Time, proceed by clock count, after ultra-wide band signal is propagated in air dielectric, feed back to ultra-wide band signal receiving antenna,
Then its distance is calculated by equation below:
D=C*t/2
Wherein d represents the distance of ultra-wide band antenna and human body, and owing to ultra-wide band signal is light velocity propagation, C represents the light velocity, logical
Cross this formula and can calculate the distance of reality.When the data of this signal are through FIR low-pass filtering treatment, and adding cut off band width is
After the wave filter of 1Hz, owing to the frequency of human body respiration is probably between 0.1Hz～0.6Hz, it is possible to obtain corresponding human body breast
Linear range between amplitude and ultra-wide band signal and the human body in chamber.And unnecessary noise jamming can be filtered, if also
Not monitoring faint Dynamic Signal, robot can carry out end rotation operation, can be poor by the frame in vision algorithm
Method or optical flow method, verify whether dynamic human body.If finding detected personnel's respiratory arrest in test process
Or adnormal respiration occurs, household can be notified by the 3G communication module of robot, or carry out medical personnel and succour phone
Operation.
Fig. 6 shows the low pass filter of the detection device of a kind of human body respiration that this utility model one embodiment proposes
Pass-band performance schematic diagram, for convenience of explanation, illustrate only the part relevant to this utility model embodiment.
Embedding digital filter at ARM and be generally divided into two kinds of forms, one is to have limit for length's unit impact response wave filter
(FIR), another kind is endless unit impact response wave filter (IIR), endless unit impact response digital filter excellent
Point is available with the result of analog filter, and being designed with substantial amounts of icon and can check of analog filter, convenient letter
Single, but it has obvious shortcoming to be exactly the non-linear of phase place, if making the output of phase linearity, also needs to add numerous and diverse phase place
Correction program, and the code continuous iteration of needs, more complicated, and also arithmetic speed is slow.
FIR filter would not have the existence of the problems referred to above, has limit for length's unit impact response wave filter can accomplish strictly
Linear phase, there is arbitrary amplitude characteristic simultaneously, and owing to the unit impact response of FIR filter is time-limited,
During the output of wave filter stable, and trap signal can be realized with fast Fourier transform (FFT) algorithm, thus significantly
Improve operational efficiency.So being filtered processing through FIR filter when DSP output signal.
Unit impact response h (n) of FIR filter is time-limited (0≤n≤N-1), and its transform is
This is z-1The multinomial on (N-1) rank, in limited z-plane (0 ＜ | z | ＜ ∞), have (N-1) individual zero point, put down at z
(N-1) rank limit is had at the initial point z=0 of face.
Frequency response H (the e of h (n)jw) it is
When h (n) is real sequence, can be by H (ejw)=± | H (ejw)|ejθ(w)=H (w) ejθ(w), wherein | H (ejw) | it is true
Positive amplitude response, has two classes condition for linear phase accurately, and it meets respectively
θ (w)=-τ w
θ (w)=β-τ w
Wherein τ, β are constants, represent that phase place is by zero w-0 or by the skew lines of θ (0)-β, the two
Group delay be all constantLinear phase is kept must to be fulfilled for
H (n)=h (N-1-n), 0≤n≤N-1
This formula is the sufficient and necessary condition that FIR filter has linear phase, and it requires the h (n) of unit impact response
Sequence is with n=(N-1)/2 for even symmetry center, and now time delays τ is equal to generally τ=(N-1)/2 of a length of N-1 of h (n)
The individual sampling period.When N is odd number, time delay is integer；When N is even number, time delay is that integer adds half sampling period.No matter N is odd number
Or even number, now h (n) should meet n=(N-1)/2 axle is even symmetry.Therefore filter coefficient h (n) of input waveform
It it is all even number.In actual applications, general employing window function metht carrys out design window function.Design a FIR filter responseApproach Hd(ejw), can derive with inverse transformation
Due to Hd(ejw) it is rectangular frequency characteristic, hdN () must be the sequence of endless, but the h (n) of FIR filter
It is time-limited, thus general it is most useful that intercept h with window function sequence w (n) of a finite lengthd(n), i.e.
H (n)=w (n) hd(n).
Wherein w (n) is finite length sequence, as n>and N-1 and n<when 0, w (n)=0.
In Practical Project, typically choose window function can run into two problems, one be the frequency spectrum main lobe of window function as far as possible
Narrow, another is just to try to reduce the amplitude of maximum secondary lobe.But both tend not to meet requirement, the more commonly used window simultaneously
Function is: rectangular window, and Bart arranges special window (Bartelett), Hanning window (Hanning), hamming window (Hamming), Blacknam
(Blackman) window, Kai Ze (Kaiser) window.During selecting wave filter, the characteristic of wave filter usually adds main lobe
Width exchange the restriction to sidelobe magnitudes for.Different window functions is selected to be provided to obtain more stable passband amplitude characteristic
With relatively low stopband interference.This utility model has selected Hanning window, and peaceful (Hanning) window (also known as the raised cosine window) window function of the Chinese is
Through Fourier transformation it is
As N ＞ ＞ 1, N-1 ≈ N, the amplitude function of window spectrum is
This three parts sum makes side-lobe energy offset so that it is more concentrate on main lobe.But also sacrifice the width of main lobe simultaneously.
Fig. 6 (a) and Fig. 6 (b) is the pass-band performance of low pass filter.
Fig. 7 shows the actual monitoring of respiration of the detection device of a kind of human body respiration that this utility model one embodiment proposes
Curve, for convenience of explanation, illustrate only the part relevant to this utility model embodiment.
Being 51 by arranging the exponent number of low pass filter, cut-off frequecy of passband is 10Hz, selects Hanning window, it is possible to filter
Some high-frequency signals, can relatively be effectively obtained the monitoring of respiration signal of human body.The signal of final sampling there will be before filtering
More clutter, the signal such as interference signal and linear trend that aliasing occur can be carried out effectively filtering, and uses
Fast Fourier transform is appreciated that the thoracic cavity of human body, at about 0.32Hz, can effectively be gone out by its respiratory frequency by the program
Existing slight amplitude is monitored, it is possible to obtain preferable respiration monitoring control curve.
Fig. 8 shows the steps flow chart of the detection method of a kind of human body respiration that another embodiment of this utility model proposes,
For convenience of explanation, illustrate only the part relevant to this utility model embodiment.
The detection method of a kind of human body respiration based on above-mentioned detection device, described detection method includes:
S11, ultra-wide band module sends pulsed radar signal；
S12, ultra-wide band module described in master control module controls sends pulsed radar signal and arrives torso model surface and carry out instead
Penetrate, produce echo-signal；
S13, Anneta module receives described echo-signal and described echo-signal is sent at described main control module
Reason；
S14, communication module is for when the pulse ripple of described echo-signal is not up to level threshold value, it is judged that human body respiration
Occur abnormal, and send warning information.
As another embodiment of this utility model, the described main control module echo-signal to receiving carries out process and includes sentencing
Whether the pulse ripple of disconnected described echo-signal reaches level threshold value, in this way, then shows that human body respiration occurs abnormal.
As another embodiment of this utility model, described echo-signal includes the periodic duty information in thoracic cavity, is i.e. to breathe
Information.
The operation principle of the detection device of the human body respiration that this utility model embodiment provides is:
First, power module is started so that alternating current power supply VCC is that described detection device is powered, secondly, master control module controls
Ultra-wide band module sends pulsed radar signal arrival torso model surface and carries out reflecting, producing echo-signal, then Anneta module
After receiving described echo-signal, through high-pass filtering module, described echo-signal is filtered, then by filtered time
Ripple signal is sent to described main control module and carries out processing and judging the pulse ripple of echo-signal, when the arteries and veins of described echo-signal
During punching fluctuation not up to level threshold value, it is judged that human body respiration occurs abnormal, communication module sends warning information to corresponding family members, with
Just rescue is carried out, it is achieved that remotely monitor the effect of old people, and take measures when adnormal respiration occurs in old people at once
In order to avoid resulting in greater loss.
In sum, the detection device of a kind of human body respiration that this utility model embodiment provides, including ultra-wide band module,
Main control module, Anneta module and communication module, ultra-wide band module described in described master control module controls send pulsed radar signal to
Reach torso model surface to carry out reflecting, producing echo-signal, after Anneta module receives described echo-signal, described echo is believed
Number being sent to described main control module processes, when the pulse ripple of described echo-signal is not up to level threshold value, it is judged that people
Body is breathed to be occurred extremely, and described communication module sends warning information to corresponding family members, in order to carry out rescue, it is achieved that remotely monitor
The effect of human body respiration, solves existence intelligence nurse robot in prior art simultaneously and can not monitor the life entity of personnel on the scene
Levy, the problem of especially human body respiration.This utility model embodiment realizes simple, it is not necessary to increase extra hardware, can be effective
Reduce cost, there is stronger usability and practicality.
Embodiment described above only in order to the technical solution of the utility model to be described, is not intended to limit；Although with reference to front
State embodiment this utility model has been described in detail, it will be understood by those within the art that: it is the most permissible
Technical scheme described in foregoing embodiments is modified, or wherein portion of techniques feature is carried out equivalent；And
These amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model embodiment each embodiment technical scheme
Spirit and scope.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (10)
1. the detection device of a human body respiration, it is characterised in that described detection device includes:
Ultra-wide band module；
It is connected with described ultra-wide band module, controls described ultra-wide band module and send pulsed radar signal arrival torso model surface
Carry out reflecting, producing the main control module of echo-signal；
It is connected with described main control module, receives described echo-signal and described echo-signal is sent to described main control module
Carry out the Anneta module processed；
It is connected with described main control module, when the pulse ripple of described echo-signal is not up to level threshold value, it is judged that human body is exhaled
Sucking-off is now abnormal, and sends the communication module of warning information.
2. the detection device of human body respiration as claimed in claim 1, it is characterised in that described echo-signal includes the week in thoracic cavity
Phase operation information.
3. the detection device of human body respiration as claimed in claim 2, it is characterised in that described detection device also includes:
It is connected with described main control module and Anneta module simultaneously, the echo-signal that described Anneta module receives is filtered, and
It is sent to the high-pass filtering module of described main control module.
4. the detection device of human body respiration as claimed in claim 3, it is characterised in that described detection device also includes:
It is connected with described main control module, the memory module that described echo-signal is preserved.
5. the detection device of human body respiration as claimed in claim 4, it is characterised in that described detection device also includes:
It is connected with described main control module, the power module that described detection device is powered.
6. the detection device of human body respiration as claimed in claim 5, it is characterised in that described main control module includes a master control core
Sheet U1, described main control chip U1 include:
Main control end CTRL, receiving terminal RXD, power end Bat-VCC, storage end MEM and transmission ends FTP；
Described main control end CTRL connects described ultra-wide band module, and described receiving terminal RXD connects described high-pass filtering module, described power end
Bat-VCC connects described power module, and described storage end MEM connects described memory module, and described transmission ends FTP connects described communication mould
Block.
7. the detection device of human body respiration as claimed in claim 6, it is characterised in that described ultra-wide band module includes surpassing band
Wide transceiving chip U2, described ultra-wide band transceiving chip U2 include:
Control end ctrl；
Described control end ctrl connects main control end CTRL of described main control chip U1.
8. the detection device of human body respiration as claimed in claim 7, it is characterised in that described high-pass filtering module includes a filter
Ripple chip U4, described filtering chip U4 include:
Transmitting terminal Send and filtering end Filt；
Described transmitting terminal Send meets the receiving terminal RXD of described main control chip U1, described filtering end Filt and connects described Anneta module.
9. the detection device of human body respiration as claimed in claim 8, it is characterised in that described Anneta module includes an antenna core
Sheet U3, described antenna chip U3 includes:
Transmitting terminal TXD；
Described transmitting terminal TXD meets the filtering end Filt of described filtering chip U4.
10. the detection device of human body respiration as claimed in claim 9, it is characterised in that described communication module includes a communication
Chip U5, described communication chip U5 include:
Transmission end RTP；
Described transmission end RTP connects transmission ends FTP of described main control chip U1.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105997083A (en) * | 2016-04-27 | 2016-10-12 | 深圳市前海万象智慧科技有限公司 | Detection device for human body breathing and detection method for same |
| CN109091146A (en) * | 2018-06-08 | 2018-12-28 | 四川斐讯信息技术有限公司 | A kind of method and system based on the monitoring baby's breathing of mother and baby's lamp |
| CN109276788A (en) * | 2018-08-24 | 2019-01-29 | 广州康智件科技有限公司 | A kind of respiratory rate acquisition method and its device for oxygen uptake monitoring |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105997083A (en) * | 2016-04-27 | 2016-10-12 | 深圳市前海万象智慧科技有限公司 | Detection device for human body breathing and detection method for same |
| CN109091146A (en) * | 2018-06-08 | 2018-12-28 | 四川斐讯信息技术有限公司 | A kind of method and system based on the monitoring baby's breathing of mother and baby's lamp |
| CN109276788A (en) * | 2018-08-24 | 2019-01-29 | 广州康智件科技有限公司 | A kind of respiratory rate acquisition method and its device for oxygen uptake monitoring |
| CN110038274A (en) * | 2019-05-21 | 2019-07-23 | 福建工程学院 | A kind of wired home nobody instruct body building method |
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