CN108294738A - A kind of blood oxygen solution in frequency domain measurement method, equipment and storage medium - Google Patents
A kind of blood oxygen solution in frequency domain measurement method, equipment and storage medium Download PDFInfo
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- CN108294738A CN108294738A CN201810181590.0A CN201810181590A CN108294738A CN 108294738 A CN108294738 A CN 108294738A CN 201810181590 A CN201810181590 A CN 201810181590A CN 108294738 A CN108294738 A CN 108294738A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7253—Details of waveform analysis characterised by using transforms
Abstract
The invention discloses a kind of blood oxygen solution in frequency domain measurement method, equipment and storage mediums.The method includes：The oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit；Low-pass filtering and normalized are carried out to the oximetry data, and corresponding spectrogram is obtained using frequency-domain transform technology；The wave crest of the spectrogram is screened to obtain pulse fundamental wave.A kind of blood oxygen solution in frequency domain measurement method, equipment and storage medium provided by the invention in the spectrogram of pulse blood oxygen signal by extracting actual pulse fundamental wave, accurately and steadily measure blood oxygen saturation and pulse frequency, it can differentiate current disturbed condition simultaneously and cope with various special disturbance regimes, blood oxygen saturation and pulse frequency are updated to calculate to extract true pulse and its harmonic wave, accuracy, stability and promptness of the raising Oximetry in strong jamming.
Description
Technical field
The present invention relates to a kind of Oximetry field more particularly to a kind of blood oxygen solution in frequency domain measurement method, equipment and
Storage medium.
Background technology
The measuring technique of noninvasive blood oxygen saturation can totally be divided into time domain and the method for frequency domain.Time domain approach is to utilize arteries and veins
The relationship of the AC portion of feux rouges and infrared light in blood oxygen signal of fighting；And frequency domain method (is compared using various frequency-domain transform technologies
Such as：- DFT, FFT and CZT etc.) the corresponding spectrogram of pulse blood oxygen signal is obtained, in the spectrogram for recycling feux rouges and infrared light
The energy proportion relationship of corresponding actual signal fundamental wave.Time domain approach is easy the influence being interfered, and frequency domain method can be
The information that signal fundamental wave and its harmonic wave are extracted in the signal being interfered is not affected by noise in actual signal fundamental wave extremely harmonic wave
It can be used for correctly calculating blood oxygen saturation and pulse frequency in the case of pollution or superposition.Frequency domain method has bright in terms of weak perfusion
Aobvious advantage.
Existing frequency domain method is effective in the case where interfering smaller and actual signal fundamental wave energy not to be seriously impaired
It is feasible, and it is stronger in interfering energy, in the presence of especially stronger low-frequency disturbance, then show not good enough.Existing frequency
Field technique scheme is not comprehensive enough to the covering of interference type, and especially in the case that strongly disturbing, existing frequency domain method is easy out
Now judge the case where pulse frequency, oxygen saturation measurement are inaccurate and display result updates not in time by accident.
Invention content
In view of this, an embodiment of the present invention provides a kind of blood oxygen solution in frequency domain measurement method, equipment and storage mediums
It solves blood oxygen frequency domain measuring method in the prior art and is susceptible to erroneous judgement pulse frequency, oxygen saturation measurement inaccuracy and display result
The problem of updating not in time.
A kind of blood oxygen solution in frequency domain measurement method, equipment and storage medium provided in an embodiment of the present invention pass through in pulse
The actual pulse fundamental wave of extraction in the spectrogram of blood oxygen signal accurately and steadily measures blood oxygen saturation and pulse frequency, while can
Differentiate current disturbed condition and cope with various special disturbance regimes, is calculated to extract true pulse and its harmonic wave
Update blood oxygen saturation and pulse frequency, accuracy, stability and promptness of the raising Oximetry in strong jamming.
A kind of blood oxygen solution in frequency domain measurement method provided in an embodiment of the present invention, including：
The oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit；
Low-pass filtering and normalized are carried out to the oximetry data, and obtained accordingly using frequency-domain transform technology
Spectrogram；
The wave crest of the spectrogram is screened to obtain pulse fundamental wave.
Preferably, the wave crest to the spectrogram is screened to obtain pulse fundamental wave, is specifically included：
To all wave crests in the spectrogram according to amplitude size carry out ranking obtain wave crest sequence W1, W2, W3,
W4 ..., Wm, the corresponding energy accounting of all wave crests is R1, R2, R3, R4 ..., Rm, wherein m indicates the number of all wave crests
Amount, m is positive integer；
Judge whether the corresponding each energy accounting of all wave crests is less than first threshold；
It removes energy accounting and is less than the corresponding all wave crests of first threshold, obtain remaining Valid peak quantity n, wherein n
Less than or equal to m；
It is screened to obtain pulse fundamental wave in the Valid peak.
Preferably, described to be screened to obtain pulse fundamental wave in the Valid peak, it specifically includes：
Establish screening passage one, selected when meeting all screening conditions of the screening passage one primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage one include：
A1：Primary peak W1, secondary peak W2 and third wave crest W3 are harmonic relationships；
A2：The energy accounting R1 of primary peak W1 is not less than second threshold；
A3：Secondary peak W2 and third wave crest W3 is not 2 times of harmonic relationships.
Preferably, described to be screened to obtain pulse fundamental wave in the Valid peak, further include specifically：
Establish screening passage two, selected when meeting all screening conditions of the screening passage two primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage two include：
B1：Primary peak W1 and secondary peak W2 is harmonic relationships；
B2：The energy accounting R1 of primary peak W1 is not less than third threshold value；
B3：Valid peak quantity n is 2 or 3.
Preferably, described to be screened to obtain pulse fundamental wave in the Valid peak, further include specifically：
Establish screening passage three, selected when meeting all screening conditions of the screening passage three primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage three include：
C1：The energy accounting R1 of primary peak W1 is not less than the 4th threshold value；
C2：Valid peak quantity n is 1 or 2.
Preferably, it is screened by the pulse fundamental wave lock after obtaining pulse fundamental wave in the Valid peak
To locking pulse fundamental wave, is further screened, specifically included according to the locking pulse fundamental wave：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage four, selected when meeting all screening conditions of the screening passage four primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage four include：
D1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as first close wave
Peak wj；
D2：The energy accounting Rj of the first close wave crest wj is not less than the second threshold；
D3：The peak difference of the first close wave crest wj and wave crest Ws is less than the 5th threshold value.
Preferably, described to be screened the pulse fundamental wave to obtain in the Valid peak after pulse fundamental wave and preserved
Later, it is further screened according to the pulse fundamental wave, further includes specifically：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage five, selected when meeting all screening conditions of the screening passage five primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage five include：
E1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as second close wave
Peak wk；
E2：The peak difference of the second close wave crest wk and wave crest Ws is not less than the 5th threshold value；
E3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wk close with second is less than the 5th threshold value.
Preferably, described to be screened the pulse fundamental wave to obtain in the Valid peak after pulse fundamental wave and preserved
Later, it is further screened according to the pulse fundamental wave, further includes specifically：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Screening passage six is established, the 2 of primary peak W1 is selected when meeting all screening conditions of the screening passage six
Times harmonic wave 2W1 is as the pulse fundamental wave；
Wherein, the screening conditions of the screening passage six include：
F1：In the presence of with wave crest similar in the position of the locking pulse fundamental wave, and only there are one, the referred to as close wave of third
Peak wl；
F2：The peak difference of wave crest Ws wave crest wl close with third is not less than the 5th threshold value；
F3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wl close with third is not less than the 5th threshold value.
A kind of blood oxygen solution in frequency domain measurement method provided in an embodiment of the present invention passes through the frequency spectrum in pulse blood oxygen signal
The actual pulse fundamental wave of extraction in figure accurately and steadily measures blood oxygen saturation and pulse frequency, while can differentiate current interference
Situation simultaneously copes with various special disturbance regimes, and update blood oxygen saturation is calculated to extract true pulse and its harmonic wave
And pulse frequency, accuracy, stability and promptness of the raising Oximetry in strong jamming.
In addition, to achieve the above object, the embodiment of the present invention also provides an equipment, the equipment includes memory, place
Reason device and the blood oxygen solution in frequency domain process of measurement that is stored on the memory and can run on the processor, the blood
The step of blood oxygen solution in frequency domain measurement method is realized when oxygen solution in frequency domain process of measurement is executed by the processor.
In addition, to achieve the above object, the present invention also provides a kind of storage medium, blood oxygen is stored on the storage medium
Solution in frequency domain process of measurement realizes the blood oxygen frequency domain when blood oxygen solution in frequency domain process of measurement is executed by processor
The step of anti-jamming measurement methods.
A kind of equipment provided in an embodiment of the present invention and storage medium in the spectrogram of pulse blood oxygen signal by extracting
Actual pulse fundamental wave accurately and steadily measures blood oxygen saturation and pulse frequency, while can differentiate current disturbed condition and answer
To various special disturbance regimes, blood oxygen saturation and pulse frequency are updated to calculate to extract true pulse and its harmonic wave,
Accuracy, stability and promptness of the raising Oximetry in strong jamming.
Description of the drawings
Fig. 1 is a kind of flow chart of one embodiment of blood oxygen solution in frequency domain measurement method of the present invention；
Fig. 2 is a kind of flow chart of another embodiment of blood oxygen solution in frequency domain measurement method of the present invention；
Fig. 3 shows the block diagram of the formula example equipment suitable for being used for realizing embodiment of the present invention.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the present invention is described further, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Refering to fig. 1, Fig. 1 is a kind of flow chart of one embodiment of blood oxygen solution in frequency domain measurement method of the present invention.
In step 101, the oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit.
Specifically, blood oxygen probe full name be blood oxygen saturation pop one's head in (English SpO2Sensor/SpO2Probe), refer to by
Probe fingerstall is fixed on patient's finger tip, using finger as the transparent vessel for containing hemoglobin.
The analogue data that analog to digital conversion circuit measures carries out analog-to-digital conversion and obtains digital signal data.
In step 102, low-pass filtering and normalized are carried out to the oximetry data, and utilize frequency-domain transform technology
Obtain corresponding spectrogram.
Specifically, converting to obtain corresponding spectrogram using common frequency-domain transform technology such as CZT so that frequency range exists
In 0~5Hz, i.e. 0~300bpm of pulse frequency range.
In step 103, the wave crest of the spectrogram is screened to obtain pulse fundamental wave.
Specifically, spectrogram there are multiple wave crests, pulse fundamental wave is selected by certain screening conditions, and then utilize
Pulse fundamental wave calculates blood oxygen saturation and pulse frequency value, i.e. pulse frequency is exactly the positional value of W1 wave crests, and blood oxygen saturation can be from red
The effective energy ratios of the corresponding W1 wave crests of light and infrared light acquires.
A kind of blood oxygen solution in frequency domain measurement method provided in an embodiment of the present invention passes through the frequency spectrum in pulse blood oxygen signal
The actual pulse fundamental wave of extraction in figure accurately and steadily measures blood oxygen saturation and pulse frequency, while can differentiate current interference
Situation simultaneously copes with various special disturbance regimes, and update blood oxygen saturation is calculated to extract true pulse and its harmonic wave
And pulse frequency, accuracy, stability and promptness of the raising Oximetry in strong jamming.
Referring to Fig.2, for a kind of flow chart of another embodiment of blood oxygen solution in frequency domain measurement method of the present invention.
Step 201, the oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit.
Specifically, blood oxygen probe full name be blood oxygen saturation pop one's head in (English SpO2Sensor/SpO2Probe), refer to by
Probe fingerstall is fixed on patient's finger tip, using finger as the transparent vessel for containing hemoglobin.
The analogue data that analog to digital conversion circuit measures carries out analog-to-digital conversion and obtains digital signal data.
In step 202, low-pass filtering and normalized are carried out to the oximetry data, and utilize frequency-domain transform technology
Obtain corresponding spectrogram.
Specifically, converting to obtain corresponding spectrogram using common frequency-domain transform technology such as CZT so that frequency range exists
In 0~5Hz, i.e. 0~300bpm of pulse frequency range.
In step 203, to all wave crests in the spectrogram according to amplitude size carry out ranking obtain wave crest sequence W1,
W2, W3, W4 ..., Wm, the corresponding energy accounting of all wave crests is R1, R2, R3, R4 ..., Rm, wherein m indicates all waves
The quantity at peak, m are positive integer.
Specifically, the position in spectrogram that the harmonic relationships of W1, W2 and W3 refer to W1, W2 and W3 wave crest is into multiple
Relationship, the position of W2 are 2 times of the position of W1, and the position of W3 is 3 times of the position of W1, and the amplitude of W1, W2 and W3 are successively
The relationship of reduction；Pulse fundamental wave is the wave crest on the corresponding position of the actual frequency of pulse wave signal in spectrogram.
In step 204, judge whether the corresponding each energy accounting of all wave crests is less than first threshold.
Preferably, first threshold can be 1%-5%, specifically, first threshold can be 5%.
Judge whether the purpose for being less than first threshold essentially consists in removal to the corresponding each energy accounting of all wave crests
The too small wave crest of energy accounting reduces analysis data, saves analysis time and cost.
In step 205, removal energy accounting is less than the corresponding all wave crests of first threshold, obtains remaining significant wave peak number
Measure n, wherein n is less than or equal to m.
Specifically, these energy accountings are less than after the corresponding all wave crests removal of first threshold obtain energy account for it is relatively high
Wave crest carry out subsequent analysis.
In step 206, screened to obtain pulse fundamental wave in the Valid peak.
Specifically, when being screened in Valid peak, multiple screening passages are established, are listed in the embodiment of the present invention
6 screening passages, but screening passage is not limited only to 6.
In step 207, screening passage one is established, is entered step when meeting all screening conditions of the screening passage one
213；
Wherein, the screening conditions of the screening passage one include：
A1：Primary peak W1, secondary peak W2 and third wave crest W3 are harmonic relationships；
A2：The energy accounting R1 of primary peak W1 is not less than second threshold；
A3：Secondary peak W2 and third wave crest W3 is not 2 times of harmonic relationships.
Preferably, the second threshold can be 45%.
Further, it is at double that the harmonic relationships of W1, W2 and W3, which refer to the position in spectrogram of W1, W2 and W3 wave crest,
Number relationships, the position of W2 is 2 times of the position of W1, and the position of W3 is 3 times of the position of W1, and the amplitude of W1, W2 and W3 be according to
The relationship of secondary reduction.
Specifically, when meeting screening passage one, illustrate that positions of the true pulse fundamental wave W1 in spectrogram at this time is small
In 100bpm, blood oxygen saturation and pulse frequency value are calculated and locked according to W1, i.e. pulse frequency is exactly the positional value of W1 wave crests, and blood oxygen is full
It can be acquired from the effective energy ratio of feux rouges and the corresponding W1 wave crests of infrared light with degree.
In step 208, screening passage two is established, is entered step when meeting all screening conditions of the screening passage two
213；
Wherein, the screening conditions of the screening passage two include：
B1：Primary peak W1 and secondary peak W2 is harmonic relationships；
B2：The energy accounting R1 of primary peak W1 is not less than third threshold value；
B3：Valid peak quantity n is 2 or 3.
Preferably, the third threshold value can be 65%.
Further, W1 and W2 harmonic relationships refer to the position in spectrogram of W1 and W2 wave crests be at multiple proportion,
The position of W2 is 2 times of the position of W1, and the amplitude of W1 and W2 is the relationship of reduction successively.
Specifically, meeting screening passage two, illustrate that positions of the true pulse fundamental wave W1 in spectrogram at this time exists
Between 100~150bpm, blood oxygen saturation and pulse frequency value are calculated and locked according to W1, i.e. pulse frequency is exactly the positional value of W1 wave crests,
And blood oxygen saturation can be acquired from the effective energy ratio of feux rouges and the corresponding W1 wave crests of infrared light.
In step 209, screening passage three is established, is entered step when meeting all screening conditions of the screening passage three
213；
Wherein, the screening conditions of the screening passage three include：
C1：The energy accounting R1 of primary peak W1 is not less than the 4th threshold value；
C2：Valid peak quantity n is 1 or 2.
Preferably, the 4th threshold value can be 85%.
Specifically, meeting screening passage three, illustrate that positions of the true pulse fundamental wave W1 in spectrogram at this time is big
In 150bpm, blood oxygen saturation and pulse frequency value are calculated and locked according to W1, i.e. pulse frequency is exactly the positional value of W1 wave crests, and blood oxygen is full
It can be acquired from the effective energy ratio of feux rouges and the corresponding W1 wave crests of infrared light with degree.
It is screened to be locked the pulse fundamental wave after obtaining pulse fundamental wave in the Valid peak
Pulse fundamental wave is further screened according to the locking pulse fundamental wave, is specifically included：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
In step 210, screening passage four is established, first is selected when meeting all screening conditions of the screening passage four
Wave crest W1 is as the pulse fundamental wave；
Wherein, the screening conditions of the screening passage four include：
D1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as first close wave
Peak wj；
D2：The energy accounting Rj of the first close wave crest wj is not less than the second threshold；
D3：The peak difference of the first close wave crest wj and wave crest Ws is less than the 5th threshold value
Preferably, the 5th threshold value can be 1%.
Specifically, meeting screening passage four, illustrate there is interference wave crest in this spectrogram, this interference wave crest is first
Then close wave crest wj calculates according to W1 and locks blood oxygen saturation and pulse frequency value, i.e. pulse frequency is exactly the positional value of W1 wave crests, and
Blood oxygen saturation can be acquired from the effective energy ratio of feux rouges and the corresponding W1 wave crests of infrared light.
In step 211, the locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage five, selected when meeting all screening conditions of the screening passage five primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage five include：
E1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as second close wave
Peak wk；
E2：The peak difference of the second close wave crest wk and wave crest Ws is not less than the 5th threshold value；
Wherein, peak difference is blood oxygen value difference.
E3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wk close with second is less than the 5th threshold value.
Specifically, meeting screening passage five, illustrate there is interference wave crest, i.e., the second close wave crest in this spectrogram
Wk, and the blood oxygen of two times of harmonic waves of the second close wave crest wk is also undesirable, so primary peak W1 may be selected at this time, so
Blood oxygen saturation and pulse frequency value are calculated and locked according to W1 afterwards, i.e., pulse frequency is exactly the positional value of W1 wave crests, and blood oxygen saturation can
It is acquired from the effective energy ratio of feux rouges and the corresponding W1 wave crests of infrared light.
In step 212, the locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Screening passage six is established, the 2 of primary peak W1 is selected when meeting all screening conditions of the screening passage six
Times harmonic wave 2W1 is as the pulse fundamental wave；
Wherein, the screening conditions of the screening passage six include：
F1：In the presence of with wave crest similar in the position of the locking pulse fundamental wave, and only there are one, the referred to as close wave of third
Peak wl；
F2：The peak difference of wave crest Ws wave crest wl close with third is not less than the 5th threshold value；
F3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wl close with third is not less than the 5th threshold value.
Specifically, meeting screening passage six, illustrate there is interference wave crest, the i.e. close wave crest of third in this spectrogram
Wl, and possible pulse fundamental wave is had found according to the locking information of front, but the blood oxygen of the fundamental wave is undesirable, so
It needs further to calculate and lock blood oxygen saturation and pulse frequency value using two times of harmonic waves of the fundamental wave, then be calculated according to 2W1
And locking blood oxygen saturation and pulse frequency value, i.e., pulse frequency is exactly the positional value of 2W1 wave crests, and blood oxygen saturation can be from feux rouges and infrared
The effective energy ratios of the corresponding 2W1 wave crests of light acquires.
In step 213, select primary peak W1 as the pulse fundamental wave.
Specifically, blood oxygen saturation and pulse frequency value are calculated and locked according to W1, i.e., pulse frequency is exactly the positional value of W1 wave crests, and
Blood oxygen saturation can be acquired from the effective energy ratio of feux rouges and the corresponding W1 wave crests of infrared light.
In step 214, select 2 times of harmonic wave 2W1 of primary peak W1 as the pulse fundamental wave.
Specifically, blood oxygen saturation and pulse frequency value are calculated and locked according to 2W1, i.e., pulse frequency is exactly the positional value of 2W1 wave crests,
And blood oxygen saturation can be acquired from the effective energy ratio of feux rouges and the corresponding 2W1 wave crests of infrared light.
A kind of blood oxygen solution in frequency domain measurement method provided in an embodiment of the present invention passes through the frequency spectrum in pulse blood oxygen signal
The actual pulse fundamental wave of extraction in figure accurately and steadily measures blood oxygen saturation and pulse frequency, while can differentiate current interference
Situation simultaneously copes with various special disturbance regimes, and update blood oxygen saturation is calculated to extract true pulse and its harmonic wave
And pulse frequency, accuracy, stability and promptness of the raising Oximetry in strong jamming.
The block diagram of the formula example equipment suitable for being used for realizing embodiment of the present invention is shown refering to Fig. 3, Fig. 3.
The equipment includes：Processor (processor) 31, memory (memory) 32, communication interface
(Communications Interface) 33 and bus 34；Wherein：
The processor 31, memory 32, communication interface 33 complete mutual communication by the bus 34；
The communication interface 33 is used for the information transmission between other equipment.
The processor 31 is used to call the computer program in the memory 32, to execute above method embodiment institute
The blood oxygen solution in frequency domain measurement method of offer, specifically includes：
The oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit；
Low-pass filtering and normalized are carried out to the oximetry data, and obtained accordingly using frequency-domain transform technology
Spectrogram；
The wave crest of the spectrogram is screened to obtain pulse fundamental wave.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
The wave crest to the spectrogram that method embodiment is provided is screened the method for obtaining pulse fundamental wave, is specifically included：
To all wave crests in the spectrogram according to amplitude size carry out ranking obtain wave crest sequence W1, W2, W3,
W4 ..., Wm, the corresponding energy accounting of all wave crests is R1, R2, R3, R4 ..., Rm, wherein m indicates the number of all wave crests
Amount, m is positive integer；
Judge whether the corresponding each energy accounting of all wave crests is less than first threshold；
It removes energy accounting and is less than the corresponding all wave crests of first threshold, obtain remaining Valid peak quantity n, wherein n
Less than or equal to m；
It is screened to obtain pulse fundamental wave in the Valid peak.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
The method for being screened to obtain pulse fundamental wave in the Valid peak that method embodiment is provided, specifically includes：
Establish screening passage one, selected when meeting all screening conditions of the screening passage one primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage one include：
A1：Primary peak W1, secondary peak W2 and third wave crest W3 are harmonic relationships；
A2：The energy accounting R1 of primary peak W1 is not less than second threshold；
A3：Secondary peak W2 and third wave crest W3 is not 2 times of harmonic relationships.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
The wave crest to the spectrogram that method embodiment is provided is screened the method for obtaining pulse fundamental wave, further includes specifically：
Establish screening passage two, selected when meeting all screening conditions of the screening passage two primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage two include：
B1：Primary peak W1 and secondary peak W2 is harmonic relationships；
B2：The energy accounting R1 of primary peak W1 is not less than third threshold value；
B3：Valid peak quantity n is 2 or 3.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
The wave crest to the spectrogram that method embodiment is provided is screened the method for obtaining pulse fundamental wave, further includes specifically：
Establish screening passage three, selected when meeting all screening conditions of the screening passage three primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage three include：
C1：The energy accounting R1 of primary peak W1 is not less than the 4th threshold value；
C2：Valid peak quantity n is 1 or 2.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
The pulse fundamental wave is locked after what method embodiment was provided screened to obtain in the Valid peak pulse fundamental wave
Locking pulse fundamental wave is obtained, is further screened, is specifically included according to the locking pulse fundamental wave：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage four, selected when meeting all screening conditions of the screening passage four primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage four include：
D1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as first close wave
Peak wj；
D2：The energy accounting Rj of the first close wave crest wj is not less than the second threshold；
D3：The peak difference of the first close wave crest wj and wave crest Ws is less than the 5th threshold value.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
What method embodiment was provided described screened the pulse fundamental wave to obtain after pulse fundamental wave and is protected in the Valid peak
After depositing, is further screened according to the pulse fundamental wave, further include specifically：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage five, selected when meeting all screening conditions of the screening passage five primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage five include：
E1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as second close wave
Peak wk；
E2：The peak difference of the second close wave crest wk and wave crest Ws is not less than the 5th threshold value；
E3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wk close with second is less than the 5th threshold value.
Further, the processor 31 is used to call the computer program in the memory 32, to execute above-mentioned side
What method embodiment was provided described screened the pulse fundamental wave to obtain after pulse fundamental wave and is protected in the Valid peak
After depositing, is further screened according to the pulse fundamental wave, further include specifically：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Screening passage six is established, the 2 of primary peak W1 is selected when meeting all screening conditions of the screening passage six
Times harmonic wave 2W1 is as the pulse fundamental wave；
Wherein, the screening conditions of the screening passage six include：
F1：In the presence of with wave crest similar in the position of the locking pulse fundamental wave, and only there are one, the referred to as close wave of third
Peak wl；
F2：The peak difference of wave crest Ws wave crest wl close with third is not less than the 5th threshold value；
F3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wl close with third is not less than the 5th threshold value.
A kind of equipment provided in an embodiment of the present invention in the spectrogram of pulse blood oxygen signal by extracting actual pulse
Fundamental wave, it is accurate and steadily measure blood oxygen saturation and pulse frequency, while can differentiate current disturbed condition and cope with it is various special
Disturbance regime, calculate update blood oxygen saturation and pulse frequency to extract true pulse and its harmonic wave, improve blood oxygen and survey
Measure the accuracy, stability and promptness in strong jamming.
In addition, the embodiment of the present invention also proposes a kind of storage medium, it is anti-dry that blood oxygen frequency domain is stored on the storage medium
Process of measurement is disturbed, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
The oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit；
Low-pass filtering and normalized are carried out to the oximetry data, and obtained accordingly using frequency-domain transform technology
Spectrogram；
The wave crest of the spectrogram is screened to obtain pulse fundamental wave.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
To all wave crests in the spectrogram according to amplitude size carry out ranking obtain wave crest sequence W1, W2, W3,
W4 ..., Wm, the corresponding energy accounting of all wave crests is R1, R2, R3, R4 ..., Rm, wherein m indicates the number of all wave crests
Amount, m is positive integer；
Judge whether the corresponding each energy accounting of all wave crests is less than first threshold；
It removes energy accounting and is less than the corresponding all wave crests of first threshold, obtain remaining Valid peak quantity n, wherein n
Less than or equal to m；
It is screened to obtain pulse fundamental wave in the Valid peak.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
Establish screening passage one, selected when meeting all screening conditions of the screening passage one primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage one include：
A1：Primary peak W1, secondary peak W2 and third wave crest W3 are harmonic relationships；
A2：The energy accounting R1 of primary peak W1 is not less than second threshold；
A3：Secondary peak W2 and third wave crest W3 is not 2 times of harmonic relationships.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
Establish screening passage two, selected when meeting all screening conditions of the screening passage two primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage two include：
B1：Primary peak W1 and secondary peak W2 is harmonic relationships；
B2：The energy accounting R1 of primary peak W1 is not less than third threshold value；
B3：Valid peak quantity n is 2 or 3.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
Establish screening passage three, selected when meeting all screening conditions of the screening passage three primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage three include：
C1：The energy accounting R1 of primary peak W1 is not less than the 4th threshold value；
C2：Valid peak quantity n is 1 or 2.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage four, selected when meeting all screening conditions of the screening passage four primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage four include：
D1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as first close wave
Peak wj；
D2：The energy accounting Rj of the first close wave crest wj is not less than the second threshold；
D3：The peak difference of the first close wave crest wj and wave crest Ws is less than the 5th threshold value.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage five, selected when meeting all screening conditions of the screening passage five primary peak W1 as
The pulse fundamental wave；
Wherein, the screening conditions of the screening passage five include：
E1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as second close wave
Peak wk；
E2：The peak difference of the second close wave crest wk and wave crest Ws is not less than the 5th threshold value；
E3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wk close with second is less than the 5th threshold value.
Further, following operation is realized when the blood oxygen solution in frequency domain process of measurement is executed by processor：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Screening passage six is established, the 2 of primary peak W1 is selected when meeting all screening conditions of the screening passage six
Times harmonic wave 2W1 is as the pulse fundamental wave；
Wherein, the screening conditions of the screening passage six include：
F1：In the presence of with wave crest similar in the position of the locking pulse fundamental wave, and only there are one, the referred to as close wave of third
Peak wl；
F2：The peak difference of wave crest Ws wave crest wl close with third is not less than the 5th threshold value；
F3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wl close with third is not less than the 5th threshold value.
A kind of storage medium provided in an embodiment of the present invention is actual by being extracted in the spectrogram of pulse blood oxygen signal
Pulse fundamental wave accurately and steadily measures blood oxygen saturation and pulse frequency, while can differentiate current disturbed condition and cope with various
Special disturbance regime updates blood oxygen saturation and pulse frequency to calculate to extract true pulse and its harmonic wave, improves blood
Accuracy, stability and promptness of the oxygenation measurement in strong jamming.
With the development of science and technology, the route of transmission of computer program is no longer limited by tangible medium, it can also be directly from net
Network is downloaded, or is obtained using other modes.Therefore, the computer-readable medium in the present embodiment may include not only tangible
Medium can also include invisible medium.
The arbitrary combination of one or more computer-readable media may be used in the computer storage media of the present embodiment.
Computer-readable medium can be computer-readable signal media or computer readable storage medium.Computer-readable storage medium
Matter for example may be-but not limited to-system, device or the device of electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor, or
The arbitrary above combination of person.The more specific example (non exhaustive list) of computer readable storage medium includes：There are one tools
Or the electrical connections of multiple conducting wires, portable computer diskette, hard disk, random access memory (RAM), read-only memory (ROM),
Erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), light
Memory device, magnetic memory device or above-mentioned any appropriate combination.In this document, computer readable storage medium can
With to be any include or the tangible medium of storage program, the program can be commanded execution system, device or device use or
Person is in connection.
Computer-readable signal media may include in a base band or as the data-signal that a carrier wave part is propagated,
Wherein carry computer-readable program code.Diversified forms may be used in the data-signal of this propagation, including --- but
It is not limited to --- electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be
Any computer-readable medium other than computer readable storage medium, which can send, propagate or
Transmission for by instruction execution system, device either device use or program in connection.
The program code for including on computer-readable medium can transmit with any suitable medium, including --- but it is unlimited
In --- wireless, electric wire, optical cable, RF etc. or above-mentioned any appropriate combination.
It can be write with one or more programming languages or combinations thereof for executing the computer that operates of the present invention
Program code, described program design language include object oriented program language-such as Java, Smalltalk, C++,
Further include conventional procedural programming language-such as " C " language or similar programming language.Program code can be with
It fully executes, partly execute on the user computer on the user computer, being executed as an independent software package, portion
Divide and partly executes or executed on a remote computer or server completely on the remote computer on the user computer.
Be related in the situation of remote computer, remote computer can pass through the network of any kind --- including LAN (LAN) or
Wide area network (WAN)-be connected to subscriber computer, or, it may be connected to outer computer (such as carried using Internet service
It is connected by internet for quotient).
In several embodiments provided by the present invention, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of division of logic function, formula that in actual implementation, there may be another division manner.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, the functional unit in of the invention embodiment can be integrated in a processing unit, can also be
Unit physically exists alone, can also be during two or more units are integrated in one unit.Above-mentioned integrated unit both may be used
It realizes, can also be realized in the form of hardware adds SFU software functional unit in the form of using hardware.
The above-mentioned integrated unit being realized in the form of SFU software functional unit can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are used so that a computer
Medicine selling machine (can be personal computer, server or network medicine selling machine etc.) or processor (processor) execute the present invention
The part steps of a embodiment the method.And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (Read-
Only Memory, ROM), random access memory (Random Access Memory, RAM), the kinds such as magnetic disc or CD can
To store the medium of program code.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (10)
1. a kind of blood oxygen solution in frequency domain measurement method, which is characterized in that including：
The oximetry data of human pulse is acquired using blood oxygen probe and analog to digital conversion circuit；
Low-pass filtering and normalized are carried out to the oximetry data, and corresponding frequency spectrum is obtained using frequency-domain transform technology
Figure；
The wave crest of the spectrogram is screened to obtain pulse fundamental wave.
2. a kind of blood oxygen solution in frequency domain measurement method according to claim 1, which is characterized in that described to the frequency spectrum
The wave crest of figure is screened to obtain pulse fundamental wave, is specifically included：
To all wave crests in the spectrogram according to amplitude size carry out ranking obtain wave crest sequence W1, W2, W3, W4 ...,
Wm, the corresponding energy accounting of all wave crests is R1, R2, R3, R4 ..., Rm, wherein m indicates that the quantity of all wave crests, m are
Positive integer；
Judge whether the corresponding each energy accounting of all wave crests is less than first threshold；
It removes energy accounting and is less than the corresponding all wave crests of first threshold, obtain remaining Valid peak quantity n, wherein n is less than
Equal to m；
It is screened to obtain pulse fundamental wave in the Valid peak.
3. a kind of blood oxygen solution in frequency domain measurement method according to claim 2, which is characterized in that described described effective
It is screened to obtain pulse fundamental wave in wave crest, be specifically included：
Screening passage one is established, selects primary peak W1 as described in when meeting all screening conditions of the screening passage one
Pulse fundamental wave；
Wherein, the screening conditions of the screening passage one include：
A1：Primary peak W1, secondary peak W2 and third wave crest W3 are harmonic relationships；
A2：The energy accounting R1 of primary peak W1 is not less than second threshold；
A3：Secondary peak W2 and third wave crest W3 is not 2 times of harmonic relationships.
4. a kind of blood oxygen solution in frequency domain measurement method according to claim 2, which is characterized in that described described effective
It is screened to obtain pulse fundamental wave in wave crest, further includes specifically：
Screening passage two is established, selects primary peak W1 as described in when meeting all screening conditions of the screening passage two
Pulse fundamental wave；
Wherein, the screening conditions of the screening passage two include：
B1：Primary peak W1 and secondary peak W2 is harmonic relationships；
B2：The energy accounting R1 of primary peak W1 is not less than third threshold value；
B3：Valid peak quantity n is 2 or 3.
5. a kind of blood oxygen solution in frequency domain measurement method according to claim 2, which is characterized in that described described effective
It is screened to obtain pulse fundamental wave in wave crest, further includes specifically：
Screening passage three is established, selects primary peak W1 as described in when meeting all screening conditions of the screening passage three
Pulse fundamental wave；
Wherein, the screening conditions of the screening passage three include：
C1：The energy accounting R1 of primary peak W1 is not less than the 4th threshold value；
C2：Valid peak quantity n is 1 or 2.
6. according to a kind of blood oxygen solution in frequency domain measurement method of claim 3-5 any one of them, which is characterized in that described
It is screened to be locked the pulse fundamental wave to obtain locking pulse fundamental wave after obtaining pulse fundamental wave in Valid peak, according to institute
It states locking pulse fundamental wave further to be screened, specifically include：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Screening passage four is established, selects primary peak W1 as described in when meeting all screening conditions of the screening passage four
Pulse fundamental wave；
Wherein, the screening conditions of the screening passage four include：
D1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as first close wave crest
wj；
D2：The energy accounting Rj of the first close wave crest wj is not less than the second threshold；
D3：The peak difference of the first close wave crest wj and wave crest Ws is less than the 5th threshold value.
7. a kind of blood oxygen solution in frequency domain measurement method according to claim 6, which is characterized in that described described effective
It is screened to obtain in wave crest after pulse fundamental wave by the pulse fundamental wave and after preserving, according to the pulse fundamental wave into advancing one
Step is screened, and further includes specifically：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Screening passage five is established, selects primary peak W1 as described in when meeting all screening conditions of the screening passage five
Pulse fundamental wave；
Wherein, the screening conditions of the screening passage five include：
E1：In the presence of with it is described locking pulse fundamental wave position similar in wave crest, and only there are one, the referred to as second close wave crest
wk；
E2：The peak difference of the second close wave crest wk and wave crest Ws is not less than the 5th threshold value；
E3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wk close with second is less than the 5th threshold value.
8. a kind of blood oxygen solution in frequency domain measurement method according to claim 7, which is characterized in that described described effective
It is screened to obtain in wave crest after pulse fundamental wave by the pulse fundamental wave and after preserving, according to the pulse fundamental wave into advancing one
Step is screened, and further includes specifically：
The locking pulse fundamental wave is obtained, position and the wave crest Ws of the pulse frequency fundamental wave are locked；
Establish screening passage six, selected when meeting all screening conditions of the screening passage six 2 times of primary peak W1 it is humorous
Wave 2W1 is as the pulse fundamental wave；
Wherein, the screening conditions of the screening passage six include：
F1：In the presence of with wave crest similar in the position of the locking pulse fundamental wave, and only there are one, the referred to as close wave crest of third
wl；
F2：The peak difference of wave crest Ws wave crest wl close with third is not less than the 5th threshold value；
F3：The peak difference of 2 times of harmonic waves of wave crest Ws wave crest wl close with third is not less than the 5th threshold value.
9. a kind of equipment, which is characterized in that the equipment includes：It memory, processor and is stored on the memory and can
The blood oxygen solution in frequency domain process of measurement run on the processor, the blood oxygen solution in frequency domain process of measurement is by the place
It manages when device executes and realizes such as the step of blood oxygen solution in frequency domain measurement method described in any item of the claim 1 to 8.
10. a kind of storage medium, which is characterized in that be stored with blood oxygen solution in frequency domain process of measurement, institute on the storage medium
It states and is realized when blood oxygen solution in frequency domain process of measurement is executed by processor such as blood oxygen described in any item of the claim 1 to 8 frequency
The step of domain anti-jamming measurement methods.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755089A (en) * | 2019-10-17 | 2020-02-07 | 浙江荷清柔性电子技术有限公司 | Blood oxygen detection method, blood oxygen detection device and terminal equipment |
| CN110840430A (en) * | 2018-08-21 | 2020-02-28 | 北京万生人和科技有限公司 | Intra-abdominal pressure data screening method, computer-readable storage medium, and intra-abdominal pressure data screening device |
| CN111588385A (en) * | 2020-05-29 | 2020-08-28 | 安徽华米智能科技有限公司 | Method and device for measuring blood oxygen saturation, storage medium and electronic equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040039273A1 (en) * | 2002-02-22 | 2004-02-26 | Terry Alvin Mark | Cepstral domain pulse oximetry |
| CN101103921A (en) * | 2007-08-14 | 2008-01-16 | 北京麦邦光电仪器有限公司 | Method and device for measuring blood oxygen saturation |
| CN101933810A (en) * | 2010-09-03 | 2011-01-05 | 深圳市纽泰克电子有限公司 | Method and system for detecting blood oxygen saturation |
| CN104602596A (en) * | 2012-09-13 | 2015-05-06 | 欧姆龙健康医疗事业株式会社 | Pulse measurement device, pulse measurement method, and pulse measurement program |
| CN105796115A (en) * | 2016-04-20 | 2016-07-27 | 广州视源电子科技股份有限公司 | Blood oxygen measurement method and system |
| CN107510462A (en) * | 2017-09-06 | 2017-12-26 | 广州视源电子科技股份有限公司 | Blood oxygen measuring method and device |
-
2018
- 2018-03-06 CN CN201810181590.0A patent/CN108294738A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040039273A1 (en) * | 2002-02-22 | 2004-02-26 | Terry Alvin Mark | Cepstral domain pulse oximetry |
| CN101103921A (en) * | 2007-08-14 | 2008-01-16 | 北京麦邦光电仪器有限公司 | Method and device for measuring blood oxygen saturation |
| CN101933810A (en) * | 2010-09-03 | 2011-01-05 | 深圳市纽泰克电子有限公司 | Method and system for detecting blood oxygen saturation |
| CN104602596A (en) * | 2012-09-13 | 2015-05-06 | 欧姆龙健康医疗事业株式会社 | Pulse measurement device, pulse measurement method, and pulse measurement program |
| CN105796115A (en) * | 2016-04-20 | 2016-07-27 | 广州视源电子科技股份有限公司 | Blood oxygen measurement method and system |
| CN107510462A (en) * | 2017-09-06 | 2017-12-26 | 广州视源电子科技股份有限公司 | Blood oxygen measuring method and device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840430A (en) * | 2018-08-21 | 2020-02-28 | 北京万生人和科技有限公司 | Intra-abdominal pressure data screening method, computer-readable storage medium, and intra-abdominal pressure data screening device |
| CN110840430B (en) * | 2018-08-21 | 2022-09-13 | 北京万生人和科技有限公司 | Intra-abdominal pressure data screening method, computer-readable storage medium, and intra-abdominal pressure data screening device |
| CN110755089A (en) * | 2019-10-17 | 2020-02-07 | 浙江荷清柔性电子技术有限公司 | Blood oxygen detection method, blood oxygen detection device and terminal equipment |
| CN111588385A (en) * | 2020-05-29 | 2020-08-28 | 安徽华米智能科技有限公司 | Method and device for measuring blood oxygen saturation, storage medium and electronic equipment |
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