CN109875541A - Pulse measurement method, pulse measurement device and storage medium - Google Patents
Pulse measurement method, pulse measurement device and storage medium Download PDFInfo
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- CN109875541A CN109875541A CN201811626830.XA CN201811626830A CN109875541A CN 109875541 A CN109875541 A CN 109875541A CN 201811626830 A CN201811626830 A CN 201811626830A CN 109875541 A CN109875541 A CN 109875541A
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Abstract
The present invention provides a kind of pulses measure method, pulse measurement device and storage medium.The pulses measure method includes: the pressure-sensing signal measured based on pressure sensor from measured body, determines that measured body remains static or motion state；And in the case where determining that measured body is kept in motion, based on pressure-sensing signal, signal processing is carried out to the pulse sensing signal that photoelectric sensor is measured from measured body, obtains the pulse signal of measured body, wherein, pulse sensing signal and pressure-sensing signal measure simultaneously.Pulses measure method according to the present invention had both made accurately measure pulse signal under motion state.
Description
Technical field
The present invention relates to signal measurement technique, in particular to a kind of pulses measure method, pulse measurement device and storage are situated between
Matter.
Background technique
The sensor of current big measurement heart rate has been put into practical application, but most sensor is substantially all
It is one heart rate value of measurement, does not provide the preview of real-time waveform.A problem is thus had, can exactly lose certain for the moment
The heart rate value at quarter.Only the value of heart rate is also very difficult to study the attribute of an object (subject) simultaneously.Especially transported in measured
When dynamic, the heart rate waveform of heart rate signal or presentation is unstable, and software cannot do effective R wave detection to it, so will cause
The case where inaccurate situation of heart rate and heart rate lag.For example, measured needs to lie in bed when carrying out ECG examination within the hospital
On remain stationary state and could accurately measure the electrocardiogram of measured.
It can also be capable of measuring the pulses measure method, apparatus of pulse signal under motion state therefore, it is necessary to one kind and deposit
Storage media.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of pulses measure method, pulse measurement device and storage medium,
To overcome one or more defects in the prior art.
According to an aspect of the present invention, a kind of pulses measure method is provided.The pulses measure method includes: based on pressure
The pressure-sensing signal that sensor is measured from measured body determines that measured body remains static or motion state；And true
It makes in the case that measured body is kept in motion, is based on pressure-sensing signal, the arteries and veins measured to photoelectric sensor from measured body
Sensing signal of fighting carries out signal processing, obtains the pulse signal of measured body, wherein pulse sensing signal and pressure-sensing signal are
It measures simultaneously.
In some embodiments, when the amplitude of pressure-sensing signal is greater than predetermined threshold, determine that measured body is in movement
State.
In some embodiments, signal is carried out to the pulse sensing signal that photoelectric sensor measures based on pressure-sensing signal
The step of processing may include: the frequency spectrum for calculating pressure-sensing signal, determine the frequency range of the pressure-sensing signal；And make
It is the bandpass filter of frequency range with free transmission range, pulse sensing signal is filtered, obtains pulse signal.
In some embodiments, before the frequency spectrum for calculating pressure-sensing signal, pressure-sensing signal can be carried out equal
Value filtering.
In some embodiments, pressure-sensing signal may include multiple pressures by being evenly arranged in around photoelectric sensor
Multiple pressure-sensing signals that force snesor measures simultaneously.
The frequency spectrum of pressure-sensing signal is calculated, the step of determining the frequency range of pressure-sensing signal may include: to calculate
Multiple respective frequency spectrums of pressure-sensing signal, determine the frequency range of each pressure-sensing signal；And by multiple pressure-sensings
The each frequency range of signal carries out union operation, free transmission range of the frequency range determined as bandpass filter.
In some embodiments, when the voltage of pressure-sensing signal is not more than predetermined threshold, determine that measured body is in quiet
Only state, using pulse sensing signal as the pulse signal of measured body.
In some embodiments, pulses measure method further include: pressure-sensing signal is being based on, to photoelectric sensor from quilt
It surveys before the step of pulse sensing signal that body measures carries out signal processing, obtains the pulse signal of measured body；And/or in determination
When measured body remains static, using pulse sensing signal as the pulse signal of measured body before, to pulse sensing signal into
Row high-pass filtering.
The present invention also provides a kind of pulse measurement devices, comprising: processor；And memory, it is stored thereon with calculating
Machine instruction, when processor executes the computer instruction stored on memory, pulse measurement device is as described above for completing
Pulses measure method.
The present invention also provides a kind of storage mediums, are stored thereon with computer program code, realization when executing the code
Pulses measure method as described above.
Pulses measure method, pulse measurement device and storage medium according to the present invention, are kept in motion in measured body
When, at the pulse sensing signal that is measured by the pressure-sensing signal measured based on pressure sensor to photoelectric sensor
Reason, can be preferably except filter motion artifacts, to prepare to measure pulse signal.
It will be apparent to a skilled person that can be not limited to the objects and advantages that the present invention realizes above specific
It is described, and the above and other purpose that the present invention can be realized will be more clearly understood according to following detailed description.
And it is to be understood that aforementioned description substantially and subsequent detailed description are exemplary illustration and explanation, not
The limitation to the claimed content of the present invention should be used as.
Detailed description of the invention
With reference to the attached drawing of accompanying, the more purposes of the present invention, function and advantage are by the as follows of embodiment through the invention
Description is illustrated, in which:
Fig. 1 shows the flow chart of pulses measure method according to an exemplary embodiment of the present invention.
Fig. 2 shows the figures that pressure sensor according to an exemplary embodiment of the present invention and photoelectric sensor are laid out.
Fig. 3 shows the flow chart of the pulses measure method of another exemplary embodiment according to the present invention.
Fig. 4 shows the figure for the pulse signal that pulses measure method according to an exemplary embodiment of the present invention obtains.
Fig. 5 shows the block diagram of pulse measurement device according to an exemplary embodiment of the present invention.
Specific embodiment
By reference to exemplary embodiment, the purpose of the present invention and function and the side for realizing these purposes and function
Method will be illustrated.However, the present invention is not limited to exemplary embodiment as disclosed below；Can by different form come
It is realized.The essence of specification is only to aid in those skilled in the relevant arts' Integrated Understanding detail of the invention.
Hereinafter, the embodiment of the present invention will be described with reference to the drawings.In the accompanying drawings, identical appended drawing reference represents identical
Or similar component or same or like step.
It is below with reference to accompanying drawings and right in conjunction with specific embodiments in order to be clearer and more clear technical solution of the present invention
Methods and apparatus of the present invention is described in detail.
Fig. 1 shows the flow chart of pulses measure method according to an exemplary embodiment of the present invention.
As shown in Figure 1, based on the pressure-sensing signal that pressure sensor is measured from measured body, determining institute in step ST102
Measured body is stated to remain static or motion state.Herein, motion state and stationary state do not imply that measured body entirety
State, and refer to when measuring pressure-sensing signal from measured body, the state that pressure sensor is experienced.For example, when one
A measured be seated the pulse for measuring its wrist portion when, in measurement process, measured's finger slight bending drive wrist portion skin
Skin slightly trembles.Although slight trembling has occurred in the skin at tested position at this point, measured does not move integrally, therefore,
Belong to motion state.
Since pressure sensor is very sensitive for the pressure change acted in its sensing face, even if slight
Movement, pressure sensor can also sense.In some examples of the invention, when at least one in pressure sensor is sensed
Pressure-sensing signal amplitude be greater than predetermined threshold when, can determine that measured body is kept in motion；And it is not more than predetermined threshold
When value, it can determine that measured body remains static.For example, predetermined threshold can be the 30% of the full scale of pressure sensor.
A, in the case where determining that the measured body is kept in motion, it is based on pressure-sensing signal, to photoelectric sensing
The pulse sensing signal that device is measured from measured body carries out signal processing, obtains the pulse signal of measured body, wherein pulse sensing letter
Number and pressure-sensing signal measure simultaneously.
Specifically, by calculating the frequency spectrum of pressure-sensing signal, determining its frequency range f0-f1 in step ST104.
For example, the frequency spectrum of pressure-sensing signal can be calculated by Fourier transformation or Fast Fourier Transform (FFT).Then in step
In ST106, the bandpass filter for the use of free transmission range being frequency range f0-f1 is filtered pulse sensing signal, obtains arteries and veins
It fights signal.
B, when determining that measured body remains static, in step ST108, using pulse sensing signal as measured body
Pulse signal.
Pulse sensing signal and pressure-sensing signal measure simultaneously.
In some examples of the invention, multiple pressure sensors can be set.Fig. 2 shows examples according to the present invention
The property pressure sensor of embodiment and the layout of photoelectric sensor.
Such as Fig. 2, photoelectric sensor 220 and pressure sensor 211,212,213 and 214 are provided on substrate 201.Light
Electric transducer 220 is located at the center of the first surface in face of measured body of substrate 201, and pressure sensor 211-214 is located at base
On the first surface of plate 201 and it is evenly distributed on 220 surrounding of photoelectric sensor.In some instances, substrate 201 can be flexibility
Material, in order to be bonded the shape of measured body.
Although being exemplarily illustrated in Fig. 2, pressure sensor is four, is also possible to other quantity, preferably
To be evenly distributed on around photoelectric sensor.
Multiple pressure sensor 211-214 can be foil gauge type pressure sensor.It can be set and be used on substrate 201
Support the pedestal (not shown) of pressure sensor.Photoelectric sensor can be reflective photoelectric sensor, and can be by being arranged
Pedestal (not shown) support on substrate 201.Reflective photoelectric sensor 220 includes for the transmitting to measured body transmitting light
Device 222 and the receiver 224 for receiving the light being reflected back from measured body.Preferably, the light that transmitter 222 emits to measured body can be with
It is the infrared light for having more preferable penetrability, in addition, the light filtering of the wavelength has better anti-interference and penetrability.Receiver
224 can use high-precision infrared remote receiver, can be very good the interference for filtering out daylight.
The acquisition principle of photoelectric sensor 220 is as follows: a human heart blood of every pump, blood flow can be transmitted to each of body
A position, it is big that the position that blood flow flows through at this time will appear blood flow, blood vessel dilatation, the high situation of haemoconcentration, at this time with infrared
Light go irradiation vascular site, its reflected light with regard to smaller, the optical signal that receiver 224 receives just than darker, so
The amplitude of the pulse sensing signal of the analog voltage of output is with regard to smaller；When human heart is shunk, the blood meeting of human body
Heart is flowed back into, the haemoconcentration at the tested position of blood flow warp at this time is lower, and removes irradiation vascular site with infrared light at this time, instead
The light come is emitted back towards with regard to bigger, the optical signal that receiver 224 receives is just brighter, so the pulse sense of the analog voltage of output
The amplitude of signal is surveyed with regard to bigger.
In some examples of the invention, pressure sensor 211-214 and photoelectric sensor 220 can be by substrate courts
After position stickup medical dual-side glue in measured body one side in addition to pressure sensor 211-214 and photoelectric sensor 220 securely
Ground affixes on skin, guarantees the stability worn.
Fig. 3 shows the flow chart of the pulses measure method of another exemplary embodiment according to the present invention.Method shown in Fig. 3
Middle step ST302, ST310, ST314 are identical as ST102, ST106 and ST108 in Fig. 1, and details are not described herein.
After determining that measured body is kept in motion, in step ST304, pressure-sensing signal is filtered, example
Such as use mean filter.Then in step ST306, the frequency spectrum of pressure-sensing signal is calculated, determines the frequency of pressure-sensing signal
Range f0-f1, the passband frequency range as bandpass filter in step ST310.
In the example for being provided with multiple pressure sensors as shown in Figure 2, each pressure can be calculated separately in step ST306
Sensor respective frequency spectrum of pressure-sensing signal measured by the same time determines the frequency model of each pressure-sensing signal
It encloses.Then, using each frequency range of multiple pressure-sensing signals carry out frequency range f0-f1 that union operation obtains as
The free transmission range of bandpass filter in step ST310.For example, determining pressure-sensing signal measured by pressure sensor 211
Frequency range be 1~10Hz；The frequency range of digital pressure sensing signal measured by pressure sensor 212 is 1~8Hz；
The frequency range of digital pressure sensing signal measured by pressure sensor 213 is 1~15Hz；Measured by pressure sensor 214
The frequency range of digital pressure sensing signal be 1~20Hz；The frequency range f0-f1 so obtained after union operation is exactly 1
~20Hz.
In the bandpass filter for the use of free transmission range being frequency range f0-f1, pulse sensing signal is filtered, is obtained
Before pulse signal, in step ST308, high-pass filtering can be carried out to pulse sensing signal.For example, high-pass filter is cut
Only frequency can be between 0.1Hz to 0.25Hz, it is preferable that between 0.15Hz to 0.2Hz.
Determining that measured body remains static, before using pulse sensing signal as the pulse signal of measured body,
In step ST312, high-pass filtering can be carried out to pulse sensing signal.For example, the cutoff frequency of high-pass filter can be
Between 0.1Hz to 0.25Hz, it is preferable that between 0.15Hz to 0.2Hz.
Although being shown in Fig. 3, step ST304 after step ST302, step ST304 can step ST302 it
Before or execution in parallel.Similarly, step ST312 can be before step ST302 or execution in parallel.Although
It is shown in FIG. 3, step ST308 is after step ST306, but step ST308 can appointing before step ST310 execution
The meaning moment executes, for example, parallel with step ST306.
Fig. 4 shows the figure for the pulse signal that pulses measure method according to an exemplary embodiment of the present invention obtains.
As shown in figure 3, the pulse sensing signal waveform on top is in the case where measured body movement, by reflecting light fax
Pulse sensing signal measured by sensor.The pulse signal of lower part is to be based on feeling of stress in the case where determining measured body movement
Survey signal, after handling pulse sensing signal, obtained pulse signal.It can thus be seen that by based on more
The pressure-sensing signal that a pressure sensor measures can after handling the pulse sensing signal that photoelectric sensor measures
Substantially to filter out the motion artifacts in pulse signal, available good pulse signal.
Pulses measure method according to the present invention can determine that measured body is to be kept in motion based on pressure-sensing signal
Or stationary state, in the case where remaining static, due to there is no motion artifacts in the signal of photoelectric sensor sensing, because
This, directlys adopt pulse sensing signal that photoelectric sensor measures as pulse signal, to realize quickly processing；And it is being in
In the case where motion state, since there are motion artifacts in the signal of photoelectric sensor sensing, surveyed based on multiple pressure sensors
The pressure-sensing signal obtained, handles the pulse sensing signal that photoelectric sensor measures, and pulse signal is obtained, thus anti-fortune
Dynamic interference.The quick place of signal also may be implemented while anti motion interference in pulses measure method according to the present invention as a result,
Reason.
Pulses measure method according to the present invention, by the pressure-sensing signal that is measured based on pressure sensor to photoelectric transfer
The pulse sensing signal that sensor measures is handled, can be preferably except filter motion artifacts.
Fig. 5 shows the pulses measure according to an exemplary embodiment of the present invention that can be used for realizing above-mentioned pulses measure method
The structural schematic diagram of device.
Referring to Fig. 5, pulse measurement device includes memory 502, processor 504 and detecting part 506.
Detecting part includes pressure sensor for inductively measuring pressure-sensing signal and for inductively measuring photoelectricity sensing
The photoelectric sensor of signal.
It is stored with computer instruction on memory 502, is referred to when processor 504 executes the computer stored on memory 502
When enabling, pulse measurement device completes above-mentioned pulses measure method.
Memory 502 may include various types of storage units, such as Installed System Memory, read-only memory (ROM), and forever
Long storage device.Wherein, ROM can store the static data of other modules needs of processor 502 or computer or refer to
It enables and signal that sensor measures.Permanent storage can be read-write storage device.Permanent storage can be
The non-volatile memory device of the instruction and data of storage will not be lost after computer circuit breaking.In some embodiments
In, permanent storage device is used as permanent storage using mass storage device (such as magnetically or optically disk, flash memory).Other one
In a little embodiments, permanent storage device can be removable storage equipment (such as floppy disk, CD-ROM drive).Installed System Memory can be with
It is read-write storage equipment or the read-write storage equipment of volatibility, such as dynamic random access memory.Installed System Memory can be deposited
Store up the instruction and data that some or all processors need at runtime.In addition, memory 502 may include any computer
The combination of readable storage medium, including (DRAM, SRAM, SDRAM, flash memory may be programmed only various types of semiconductor memory chips
Read memory), disk and/or CD can also use.In some embodiments, memory 502 may include it is readable and/or
The removable storage equipment write, such as laser disc (CD), read-only digital versatile disc (such as DVD-ROM, DVD-dual layer-
ROM), read-only Blu-ray Disc, super disc density, flash card (such as SD card, min SD card, Micro-SD card etc.), magnetism are soft
Disk etc..Computer readable storage medium does not include carrier wave and the momentary electron signal by wirelessly or non-wirelessly transmitting.
Processor 504 can be the processor of a multicore, also may include multiple processors.In some embodiments,
Processor 504 may include a general primary processor and one or more special coprocessors, such as graphics process
Device (GPU), digital signal processor (DSP) etc..In some embodiments, the circuit reality of customization can be used in processor 504
It is existing, such as application-specific IC (ASIC, Application Specific Integrated Circuit) or scene
Programmable gate array (FPGA, Field Programmable Gate Arrays).
Pulse measurement device according to the present invention, by the pressure-sensing signal that is measured based on pressure sensor to pulse sense
Signal is surveyed to be handled, it can be preferably except filter motion artifacts.
Pulses measure method and apparatus according to the present invention above are described in detail by reference to attached drawing.
As a kind of implementation, the function of pulse measurement device is it is also contemplated that pass through such as special chip in the present invention
Hardware realize.
Present disclosure also relates to storage mediums, can store computer program code thereon, when program code is performed
The various embodiments referring to figs. 1 to pulses measure method described in Fig. 4 can be implemented, which can be tangible storage
Medium, CD, USB flash disk, floppy disk, hard disk etc..
Those of ordinary skill in the art may be aware that being described in conjunction with embodiment disclosed herein each exemplary
Unit and method and step, can be realized with the combination of hardware, software or the two.These functions are actually with hardware or soft
Part mode executes, specific application and design constraint depending on technical solution.Professional technician can be to each spy
Fixed application uses different methods to achieve the described function, but this realizes it is not considered that exceeding model of the invention
It encloses.
The method that describes in conjunction with embodiment disclosed herein can (computer etc. be patrolled with hardware the step of algorithm
Volume device) software that executes realizes.The software when executed, can make the hardware (logic devices such as computer) real
Existing above-mentioned method or its composition step, or the hardware (logic devices such as computer) is made to serve as invention described above
Device feature.
Software can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electric erasable
Any other form of depositing well known in programming ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In storage media.
Embodiments described above is all exemplary, and is not limitation of the present invention, those skilled in the art are according to this
The spirit of invention, it is contemplated that various variants and modifications, these variants and modifications are also within the scope of the invention.
Claims (9)
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| CN201811626830.XA CN109875541A (en) | 2018-12-28 | 2018-12-28 | Pulse measurement method, pulse measurement device and storage medium |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195277A (en) * | 1996-04-17 | 1998-10-07 | 精工爱普生株式会社 | Arrhythmia Detection Devices |
| CN1550206A (en) * | 2003-03-19 | 2004-12-01 | ������������ʽ���� | Pulsometer and its control method, wristwatch type information device and blood vessel analog sensor |
| CN104203089A (en) * | 2012-03-30 | 2014-12-10 | 精工爱普生株式会社 | Pulse detection device, electronic apparatus, and program |
| CN105997043A (en) * | 2016-06-24 | 2016-10-12 | 中国科学院电子学研究所 | Pulse frequency extraction method based on wrist type wearable device |
-
2018
- 2018-12-28 CN CN201811626830.XA patent/CN109875541A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195277A (en) * | 1996-04-17 | 1998-10-07 | 精工爱普生株式会社 | Arrhythmia Detection Devices |
| CN1550206A (en) * | 2003-03-19 | 2004-12-01 | ������������ʽ���� | Pulsometer and its control method, wristwatch type information device and blood vessel analog sensor |
| CN104203089A (en) * | 2012-03-30 | 2014-12-10 | 精工爱普生株式会社 | Pulse detection device, electronic apparatus, and program |
| CN105997043A (en) * | 2016-06-24 | 2016-10-12 | 中国科学院电子学研究所 | Pulse frequency extraction method based on wrist type wearable device |
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