CN110074816A - Fetal Heart Rate determines method, apparatus and terminal device - Google Patents
Fetal Heart Rate determines method, apparatus and terminal device Download PDFInfo
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- CN110074816A CN110074816A CN201910343812.9A CN201910343812A CN110074816A CN 110074816 A CN110074816 A CN 110074816A CN 201910343812 A CN201910343812 A CN 201910343812A CN 110074816 A CN110074816 A CN 110074816A
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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
- A61B5/02411—Detecting, measuring or recording pulse rate or heart rate of foetuses
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
- A61B5/344—Foetal cardiography
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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
- A61B5/7203—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
- A61B5/725—Details of waveform analysis using specific filters therefor, e.g. Kalman or adaptive filters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/02—Measuring pulse or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0866—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/48—Diagnostic techniques
- A61B8/488—Diagnostic techniques involving Doppler signals
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
- A61B8/5223—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for extracting a diagnostic or physiological parameter from medical diagnostic data
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/02—Foetus
Abstract
The application is suitable for fetal heart rate monitoring technical field, provides Fetal Heart Rate and determines method, apparatus and terminal device, comprising: obtains the first Fetal Heart Rate signal data and second fetus heart rate signal data by different sensors respectively；Fetal ECG envelope signal is determined according to the first Fetal Heart Rate signal data, determines fetal ultrasound envelope signal according to the second fetus heart rate signal data；Fetal Heart Rate is determined according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal.It can be improved the accuracy rate of determining Fetal Heart Rate by the above method.
Description
Technical field
The application belongs to fetal heart rate monitoring technical field more particularly to a kind of Fetal Heart Rate determines method, apparatus, terminal device
And computer readable storage medium.
Background technique
Currently, monitoring fetal heart frequency by noninvasive mode, there are two types of technological means, and one is what is generally used in clinic
Ultrasonic sensor is placed in parent abdomen by ultrasonic fetal heart monitoring technology, the technology, by transmitting ultrasonic signal, then is received and
From the ultrasound echo signal of heart of fetus, frequency shift (FS) corresponding with fetus heart beating then is parsed using principle of Doppler
Signal can be obtained by the heart rate value of fetus using this frequency offset signal；Another kind is stomach wall Fetal ECG technology, which will
Fetal ECG sensor is placed in parent abdomen, obtains Fetal ECG signal, is then carried out to the QRS wave in Fetal ECG signal
Filtering, identification, and then obtain the heart rate value of fetus.
Above-mentioned ultrasonic fetal heart monitoring technology and stomach wall Fetal ECG technology have in clinical application respective advantage and
Weakness, ultrasonic fetal heart monitoring technology routine care stability is good, does not influence vulnerable to uterine contraction, but it is to fetus position, parent position
And the requirement of ultrasonic sensor placement location is all higher, and anti-parent or fetal movements ability are weaker, when sensor placement is improper
Or parent leans to one side to be easy to cause sensor that can not be directed at heart of fetus when activity, and then is difficult to get accurate fetal heart frequency letter
Number.Stomach wall Fetal ECG technology is not influenced by parent or fetus position, its acquisition will not be influenced in parent or fetal movements
Fetal heart rate signal, but the myoelectricity interference that it generates uterine contraction is more sensitive, and in the stages of labor middle and later periods, uterine contraction is stronger, the flesh of generation
Electrical interference is also stronger, and Fetal ECG signal can not be accurately obtained at this time by being easy to cause, and then influences the accurate of Fetal Heart Rate detection
Degree.
Therefore need to provide a kind of new technology, to solve the above technical problems.
Summary of the invention
In view of this, the embodiment of the present application, which provides a kind of Fetal Heart Rate, determines that method, apparatus, terminal device and computer can
Storage medium is read, the accuracy rate to solve the problems, such as the determining Fetal Heart Rate of the prior art is too low.
The first aspect of the embodiment of the present application provides a kind of Fetal Heart Rate and determines method, comprising:
The first Fetal Heart Rate signal data and second fetus heart rate signal data are obtained by different sensors respectively；
Fetal ECG envelope signal is determined according to the first Fetal Heart Rate signal data, according to the second fetus heart rate signal
Data determine fetal ultrasound envelope signal；
Fetal Heart Rate is determined according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal.
The second aspect of the embodiment of the present application provides a kind of Fetal Heart Rate determining device characterized by comprising
Fetal Heart Rate signal data collection unit, for respectively by different sensors acquisition the first Fetal Heart Rate signal data and
Second fetus heart rate signal data；
Envelope signal determination unit, for determining Fetal ECG envelope signal according to the first Fetal Heart Rate signal data,
Fetal ultrasound envelope signal is determined according to the second fetus heart rate signal data；
Fetal Heart Rate determination unit, for true according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal
Determine Fetal Heart Rate.
The third aspect of the embodiment of the present application provides a kind of terminal device, including memory, processor and is stored in
In the memory and the computer program that can run on the processor, when the processor executes the computer program
The step of realizing method as described in relation to the first aspect.
The fourth aspect of the embodiment of the present application provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, and the step of method as described in relation to the first aspect is realized when the computer program is executed by processor
Suddenly.
Existing beneficial effect is the embodiment of the present application compared with prior art:
Since Fetal Heart Rate is determining according to Fetal ECG envelope signal and the fetal ultrasound envelope signal, rather than only
It is determined according to the single envelope signal of single-sensor acquisition, therefore acquires Fetal Heart Rate signal data energy by different sensors
The anti-interference ability of fetal heart rate monitoring equipment is enough improved, and then improves the accuracy rate of Fetal Heart Rate.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the flow chart that a kind of Fetal Heart Rate provided by the embodiments of the present application determines method；
Fig. 2 is the integrated signal of the first stomach wall Fetal ECG sensor and ultrasonic sensor provided by the embodiments of the present application
Figure；
Fig. 3 is the integrated signal of second of stomach wall Fetal ECG sensor and ultrasonic sensor provided by the embodiments of the present application
Figure；
Fig. 4 is the integrated signal of the third stomach wall Fetal ECG sensor and ultrasonic sensor provided by the embodiments of the present application
Figure；
Fig. 5 is a kind of structural schematic diagram of Fetal Heart Rate determining device provided by the embodiments of the present application；
Fig. 6 is the schematic diagram of terminal device provided by the embodiments of the present application.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, so as to provide a thorough understanding of the present application embodiment.However, it will be clear to one skilled in the art that there is no these specific
The application also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, so as not to obscure the description of the present application with unnecessary details.
In order to illustrate technical solution described herein, the following is a description of specific embodiments.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " instruction is described special
Sign, entirety, step, operation, the presence of element and/or component, but be not precluded one or more of the other feature, entirety, step,
Operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this present specification merely for the sake of description specific embodiment
And be not intended to limit the application.As present specification and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in present specification and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In the specific implementation, terminal device described in the embodiment of the present application is including but not limited to such as with the sensitive table of touch
Mobile phone, laptop computer or the tablet computer in face (for example, touch-screen display and/or touch tablet) etc it is other
Portable device.It is to be further understood that in certain embodiments, above equipment is not portable communication device, but is had
The desktop computer of touch sensitive surface (for example, touch-screen display and/or touch tablet).
In following discussion, the terminal device including display and touch sensitive surface is described.However, should manage
Solution, terminal device may include that one or more of the other physical User of such as physical keyboard, mouse and/or control-rod connects
Jaws equipment.
Terminal device supports various application programs, such as one of the following or multiple: drawing application program, demonstration application
Program, word-processing application, website creation application program, disk imprinting application program, spreadsheet applications, game are answered
With program, telephony application, videoconference application, email application, instant messaging applications, forging
Refining supports application program, photo management application program, digital camera application program, digital camera application program, web-browsing to answer
With program, digital music player application and/or video frequency player application program.
At least one of such as touch sensitive surface can be used in the various application programs that can be executed on the terminal device
Public physical user-interface device.It can be adjusted among applications and/or in corresponding application programs and/or change touch is quick
Feel the corresponding information shown in the one or more functions and terminal on surface.In this way, terminal public physical structure (for example,
Touch sensitive surface) it can support the various application programs with user interface intuitive and transparent for a user.
In addition, term " first ", " second " etc. are only used for distinguishing description, and should not be understood as in the description of the present application
Indication or suggestion relative importance.
Embodiment one:
Fig. 1 shows the flow chart that a kind of Fetal Heart Rate provided by the embodiments of the present application determines method, and details are as follows:
Step S11 obtains the first Fetal Heart Rate signal data and second fetus heart rate signal data by different sensors respectively；
Here the first Fetal Heart Rate signal data and second fetus heart rate signal data refers to independently to be adopted by different sensors
Collect obtained signal data.For example, after stomach wall Fetal ECG sensor acquires data, it will be from the stomach wall Fetal ECG sensor
The data of acquisition are as the first Fetal Heart Rate signal data；After ultrasonic sensor acquires data, it will be obtained from the ultrasonic sensor
Data as second fetus heart rate signal data.It should be pointed out that the first Fetal Heart Rate signal data and the second fetal rhythm here
Rate signal data is within the same period to the data of same fetus acquisition.
Step S12 determines Fetal ECG envelope signal according to the first Fetal Heart Rate signal data, according to the second fetus
Heart rate signal data determine fetal ultrasound envelope signal；
When different sensors (such as stomach wall Fetal ECG sensor and ultrasonic sensor) independently acquire Fetal Heart Rate signal
After data, Fetal Heart Rate calculation procedure will independently calculate envelope signal according to the collected signal data of each sensor.Specifically,
(1) to the first Fetal Heart Rate signal data of stomach wall Fetal ECG sensor acquisition: by the first Fetal Heart Rate signal, (i.e. Fetal ECG is believed
Number) eliminate baseline drift interference by a sef-adapting filter and eliminate Hz noise and parent electrocardio interference, it is done
Then Fetal ECG signal is successively passed through difference filter by net Fetal ECG signal, low-pass filter obtains Fetal ECG
Envelope signal.(2) to the second fetus heart rate signal data of ultrasonic sensor acquisition: utilizing principle of Doppler, real time parsing
The frequency offseting value of echo-signal (i.e. second fetus heart rate signal data) obtains frequency offset signal, and frequency offset signal is passed through a low pass
Filter obtains fetal ultrasound envelope signal.
Step S13 determines Fetal Heart Rate according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal.
In the embodiment of the present application, the first Fetal Heart Rate signal data is obtained by different sensors respectively and the second Fetal Heart Rate is believed
Number determines Fetal ECG envelope signal according to the first Fetal Heart Rate signal data, according to the second fetus heart rate signal
Data determine fetal ultrasound envelope signal, are determined according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal
Fetal Heart Rate.Since Fetal Heart Rate is determining according to Fetal ECG envelope signal and the fetal ultrasound envelope signal, rather than only
It is determined according to the single envelope signal of single-sensor acquisition, therefore acquires Fetal Heart Rate signal data energy by different sensors
The anti-interference ability of fetal heart rate monitoring equipment is enough improved, and then improves the accuracy rate of Fetal Heart Rate.
In some embodiments, after the step S13, comprising: export determining Fetal Heart Rate.Specifically, it will determine
Fetal Heart Rate shown with curve form, alternatively, the Fetal Heart Rate of the determination is printed, alternatively, exporting determining Fetal Heart Rate to finger
Determine terminal storage.Optionally, before the determining Fetal Heart Rate of output, determining Fetal Heart Rate is cached, after preset time arrival,
The Fetal Heart Rate of caching is exported again.
In some embodiments, as shown in Fig. 2, stomach wall Fetal ECG sensor has at least two electrode, described at least 2
A electrode is embedded between the ultrasonic chip of ultrasonic sensor, at this point, the step S11 includes:
A1, the first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor；
A2, second fetus heart rate signal data are obtained by ultrasonic sensor, the second fetus heart rate signal data are corresponding
Fetus fetus corresponding with the first Fetal Heart Rate signal data is identical, the acquisition time of the second fetus heart rate signal data with
The acquisition time of the first Fetal Heart Rate signal data is identical, and the stomach wall Fetal ECG sensor has at least two electrode, institute
At least two electrode is stated to be embedded between the ultrasonic chip of the ultrasonic sensor.
Further, in order to reduce between the electrode of stomach wall Fetal ECG sensor and the ultrasonic chip of ultrasonic sensor
Interference, the then electrode that insertion is arranged be not Chong Die with ultrasonic chip.
In the present embodiment, by stomach wall Fetal ECG sensor integration into ultrasonic sensor, stomach wall Fetal ECG sensor
Have 2 or 2 or more electrodes, these electrodes are embedded into ultrasonic sensor between ultrasonic chip (certainly, if electrode compared with
It is more, then electrode is embedded into ultrasonic sensor between each ultrasound chip, otherwise, electrode is embedded into the middle part of ultrasonic sensor
Divide between ultrasonic chip), and it is not Chong Die with ultrasonic chip.Since the electrode of insertion is not Chong Die with ultrasonic chip, stomach wall tire
Youngster's EGC sensor and ultrasonic sensor still are able to independently acquire Fetal Heart Rate signal data.Further, since by stomach wall tire
The electrode of youngster's EGC sensor is embedded between the ultrasonic chip of ultrasonic sensor, thus it is guaranteed that holding in a sonde configuration
Two kinds of sensors of having received are reduced costs, and be also more convenient using upper to save wire rod use.
In some embodiments, as shown in figure 3, stomach wall Fetal ECG sensor is individually integrated into ultrasonic sensor and palace
In contracting sensor, at this point, the step S11 includes:
B1, the first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor, wherein in advance by the stomach wall fetus heart
The partial electrode that electric transducer includes is embedded between the ultrasonic chip of ultrasonic sensor, and, by the stomach wall Fetal ECG
The other parts electrode that sensor includes is embedded into the stress meter of uterine contraction sensor；
B2, second fetus heart rate signal data, the second fetus heart rate signal data pair are obtained by the ultrasonic sensor
The fetus answered fetus corresponding with the first Fetal Heart Rate signal data is identical, when the acquisition of the second fetus heart rate signal data
Between it is identical as the acquisition time of the first Fetal Heart Rate signal data.
Further, interference is generated between electrode and ultrasonic chip in order to reduce, and, it avoids between electrode and stress meter
Interference is generated, then the electrode that insertion is arranged is not Chong Die with ultrasonic chip, and the electrode of insertion is not Chong Die with stress meter.
In the present embodiment, stomach wall Fetal ECG sensor is individually integrated into ultrasonic sensor and uterine contraction sensor, abdomen
Wall Fetal ECG sensor has 2 or 2 or more electrodes, and a part of these electrodes can be embedded into ultrasonic sensor
It is not Chong Die with ultrasonic chip between each ultrasound chip；Another part is embedded into uterine contraction sensor, not Chong Die with stress meter.
Electrode due to stomach wall Fetal ECG sensor is being embedded in ultrasonic sensor and not with ultrasonic chip when uterine contraction sensor and not
Chong Die with stress meter, therefore, stomach wall Fetal ECG sensor remains to work independently, that is, passes through stomach wall Fetal ECG sensor and surpass
Sonic transducer independently acquires Fetal Heart Rate signal data.Further, since ultrasonic sensor and uterine contraction sensor are to place respectively
In the different location of parent abdomen, therefore, the first Fetal Heart Rate signal data is obtained by two station acquisitions with alternate position spike
It arrives, the voltage difference between Different electrodes so as to increase stomach wall Fetal ECG sensor, and then increases stomach wall Fetal ECG
The collected Fetal ECG signal amplitude of sensor, while without independent stomach wall Fetal ECG sensor is operated, it improves
The convenience of operation.
In some embodiments, (the electrode for for ease of description, including by stomach wall Fetal ECG sensor as shown in Figure 4
Referred to as Fetal ECG electrode), the ultrasonic chip of ultrasonic sensor is integrated into stomach wall Fetal ECG sensor, at this point, institute
Stating step S11 includes:
C1, the first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor；Wherein, stomach wall Fetal ECG senses
The number for the electrode that device includes is greater than or equal to 2.
C2, second fetus heart rate signal data are obtained by ultrasonic sensor, the second fetus heart rate signal data are corresponding
Fetus fetus corresponding with the first Fetal Heart Rate signal data is identical, the acquisition time of the second fetus heart rate signal data with
The acquisition time of the first Fetal Heart Rate signal data is identical, wherein in advance integrates the ultrasonic chip of the ultrasonic sensor
Into the electrode of the stomach wall Fetal ECG sensor.
Further, the ultrasonic chip and the electric signal sensor of the electrode be not be overlapped.
In the present embodiment, since the ultrasonic chip by ultrasonic sensor is integrated into the electrode of stomach wall Fetal ECG sensor
In, therefore, each electrode of stomach wall Fetal ECG sensor can both be enabled to cover each best fetus of parent abdomen
Ecg signal acquiring position ensure that the accuracy of Fetal ECG signal (i.e. the first Fetal Heart Rate signal data) acquisition；Simultaneously
It can guarantee heart of fetus ultrasonic signal (i.e. second fetus heart rate signal in these station acquisitions to heart of fetus beating ultrasonic echo
Data) acquisition accuracy.
In some embodiments, the first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor respectively, passed through
Ultrasonic sensor obtains second fetus heart rate signal data.Since stomach wall Fetal ECG sensor and ultrasonic sensor are independent biographies
Therefore ultrasonic sensor and stomach wall Fetal ECG sensor independently can be flexibly placed on the different positions of parent abdomen by sensor
Set, to both guarantee concurrently and independently to acquire Fetal Heart Rate signal data, flexibility is more preferable, and make ultrasonic sensor and
Stomach wall Fetal ECG sensor is all placed on the optimum position respectively required, when parent position or fetus position difference, two
Person can independently carry out riding position adjustment, to obtain optimum signal, guarantee the first Fetal Heart Rate signal data and the second Fetal Heart Rate
The accuracy of signal data acquisition.
In some embodiments, Fetal ECG envelope signal and fetal ultrasound envelope signal are analyzed respectively, is selected
The high-quality envelope signal data of envelope signal calculate Fetal Heart Rate, and specifically, the step S13 includes:
D1, auto-correlation computation is carried out to the Fetal ECG envelope signal, obtains the first auto-correlation computation result；
D2, auto-correlation computation is carried out to the fetal ultrasound envelope signal, obtains the second auto-correlation computation result；
The wave crest of D3, the wave crest for choosing the first auto-correlation computation result respectively and the second auto-correlation computation result, judge phase
It whether there is multiple proportion between adjacent wave peak, the Fetal ECG envelope signal and the fetal ultrasound determined according to judging result
The signal quality quality of envelope signal；Specifically, choose the first auto-correlation computation result wave crest, judge be between adjacent peaks
No there are multiple proportions, for example, whether there is identical multiple proportion, alternatively, whether there is different multiple proportions etc..Together
Reason chooses the wave crest of the second auto-correlation computation result, judges between adjacent peaks with the presence or absence of multiple proportion.If judging to exist
Multiple proportion then determines that the signal quality of the corresponding envelope signal of auto-correlation computation result is good, otherwise, it is determined that the auto-correlation is transported
The signal quality for calculating the corresponding envelope signal of result is bad.For example, if judge the first auto-correlation computation result adjacent peaks it
Between there are multiple proportions, then determine that the signal quality of the corresponding Fetal ECG envelope signal of the first auto-correlation computation result is good.
D4, the first wave crest of the good auto-correlation computation result of signal quality is determined as Fetal Heart Rate.
It should be noted that if judging the adjacent peaks and the second auto-correlation computation knot of the first auto-correlation computation result
All there is multiple proportion in the adjacent peaks of fruit, then the first wave crest of the first auto-correlation computation result is determined as Fetal Heart Rate, alternatively,
The first wave crest of second auto-correlation computation result is determined as Fetal Heart Rate.Alternatively, in some embodiments, further judging first
Whether the multiple proportion of the adjacent peaks of auto-correlation computation result is specified multiple relationship, and, judge the second auto-correlation computation
Whether the multiple proportion of adjacent peaks as a result is specified multiple relationship, if the adjacent peaks of only the first auto-correlation computation result
Meet condition, then the first wave crest of the first auto-correlation computation result is determined as Fetal Heart Rate, otherwise, by the second auto-correlation computation knot
The first wave crest of fruit is determined as Fetal Heart Rate.
Above-described embodiment is by judging that adjacent peaks whether there is the signal quality that multiple proportion judges envelope signal
Quality, optionally, by directly analyzing the amplitude of envelope signal, by the amplitude corresponding envelope of amplitude within a preset range
Signal determining is high-quality envelope signal.
In some embodiments, Fetal Heart Rate is calculated according to fetal ultrasound envelope signal and Fetal ECG envelope signal respectively,
Then the trend of 2 Fetal Heart Rates of analytical calculation selects the good Fetal Heart Rate of trend as final Fetal Heart Rate, at this point, described
Step S13 includes:
E1, the first Fetal Heart Rate is calculated according to the Fetal ECG envelope signal, according to the fetal ultrasound envelope signal meter
Calculate the second Fetal Heart Rate；Specifically, auto-correlation computation is carried out to the Fetal ECG envelope signal, determines the first Fetal Heart Rate, for example,
The first Fetal Heart Rate is determined according to the first wave crest of auto-correlation computation result.Similarly, auto-correlation is carried out to fetal ultrasound envelope signal
Operation determines the second Fetal Heart Rate.
E2, the difference for calculating first Fetal Heart Rate and second Fetal Heart Rate；
If the difference of E3, first Fetal Heart Rate and second Fetal Heart Rate are less than or equal to preset difference value threshold value, select
First Fetal Heart Rate and/or second Fetal Heart Rate determine Fetal Heart Rate；If first Fetal Heart Rate and second Fetal Heart Rate
Difference be less than or equal to preset difference value threshold value, then determine the first Fetal Heart Rate and the second Fetal Heart Rate be all accurately, then select first
Fetal Heart Rate or the second Fetal Heart Rate are as Fetal Heart Rate, alternatively, the average value of the first Fetal Heart Rate and the second Fetal Heart Rate is calculated, by the first tire
The average value of heart rate and the second Fetal Heart Rate is as Fetal Heart Rate.
If the difference of E4, first Fetal Heart Rate and second Fetal Heart Rate are greater than preset difference value threshold value, preset time is counted
The average value of interior fixed Fetal Heart Rate respectively makees the average value and first Fetal Heart Rate and second Fetal Heart Rate
Difference selects the lesser Fetal Heart Rate of absolute difference as Fetal Heart Rate.Specifically, if the difference of the first Fetal Heart Rate and the second Fetal Heart Rate is big
In preset difference value threshold value, then from the Fetal Heart Rate calculated in preset time is selected in the fixed Fetal Heart Rate prestored, it is pre- to calculate this
If the average value of multiple Fetal Heart Rates in the time, then by the average value of multiple Fetal Heart Rates in the first Fetal Heart Rate and the preset time
It is poor to make, and, the average value work of multiple Fetal Heart Rates in the second Fetal Heart Rate and the preset time is poor, then from 2 obtained differences
In value, select the lesser corresponding Fetal Heart Rate of absolute difference as Fetal Heart Rate.For example, it is assumed that when the first Fetal Heart Rate is default with this
After the average value of interior multiple Fetal Heart Rates makees difference, obtained absolute difference is less than in the second Fetal Heart Rate and the preset time
The average value of multiple Fetal Heart Rates makees the absolute difference obtained after difference, then selects the first Fetal Heart Rate as Fetal Heart Rate.
Embodiment two:
Corresponding with above-described embodiment one, Fig. 5 shows a kind of knot of Fetal Heart Rate determining device provided by the embodiments of the present application
Structure schematic diagram, for ease of description, only the parts related to this embodiment are shown:
The Fetal Heart Rate determining device 5 includes: Fetal Heart Rate signal data collection unit 51, envelope signal determination unit 52, tire
Heart rate determination unit 53.Wherein:
Fetal Heart Rate signal data collection unit 51, for obtaining the first Fetal Heart Rate signal data by different sensors respectively
And second fetus heart rate signal data；
Here the first Fetal Heart Rate signal data and second fetus heart rate signal data refers to independently to be adopted by different sensors
Collect obtained signal data.For example, using the data of stomach wall Fetal ECG sensor acquisition as the first Fetal Heart Rate signal data, it will
The data of ultrasonic sensor acquisition are as second fetus heart rate signal data.
Envelope signal determination unit 52, for determining that Fetal ECG envelope is believed according to the first Fetal Heart Rate signal data
Number, fetal ultrasound envelope signal is determined according to the second fetus heart rate signal data；
Specifically, the first Fetal Heart Rate signal data that (1) acquires stomach wall Fetal ECG sensor: the first Fetal Heart Rate is believed
Number (i.e. Fetal ECG signal) eliminates baseline drift interference by a sef-adapting filter and eliminates Hz noise and parent
Electrocardio interference, obtains clean Fetal ECG signal, Fetal ECG signal is successively then passed through difference filter, low-pass filtering
Device obtains Fetal ECG envelope signal.(2) to the second fetus heart rate signal data of ultrasonic sensor acquisition: utilizing ultrasonic Doppler
The frequency offseting value of principle, real time parsing echo-signal (i.e. second fetus heart rate signal data) obtains frequency offset signal, and frequency deviation is believed
Number fetal ultrasound envelope signal is obtained by a low-pass filter.
Fetal Heart Rate determination unit 53, for according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal
Determine Fetal Heart Rate.
In the present embodiment, since Fetal Heart Rate is true according to Fetal ECG envelope signal and the fetal ultrasound envelope signal
It is fixed, rather than determined only according to the single envelope signal of single-sensor acquisition, therefore acquire fetal rhythm by different sensors
Rate signal data can be improved the anti-interference ability of fetal heart rate monitoring equipment, and then improve the accuracy rate of Fetal Heart Rate.
In some embodiments, the Fetal Heart Rate determining device 5 further include:
Fetal Heart Rate output unit, for exporting determining Fetal Heart Rate.Specifically, determining Fetal Heart Rate is shown with curve form
Show, alternatively, printing the Fetal Heart Rate of the determination, is stored alternatively, exporting determining Fetal Heart Rate to designated terminal.Optionally, exist
Before exporting determining Fetal Heart Rate, determining Fetal Heart Rate is cached, reaches and then export the Fetal Heart Rate of caching in preset time.
In some embodiments, as shown in Fig. 2, stomach wall Fetal ECG sensor has at least two electrode, described at least 2
A electrode is embedded between the ultrasonic chip of ultrasonic sensor, at this point, Fetal Heart Rate signal data collection unit 51 is specifically used for:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor；And it is obtained by ultrasonic sensor
Second fetus heart rate signal data, the corresponding fetus of second fetus heart rate signal data and the first Fetal Heart Rate signal data pair
The fetus answered is identical, when the acquisition of the acquisition time of the second fetus heart rate signal data and the first Fetal Heart Rate signal data
Between it is identical, the stomach wall Fetal ECG sensor has at least two electrode, and at least two electrode is embedded into the ultrasound and passes
Between the ultrasonic chip of sensor.
Further, the electrode of insertion is not Chong Die with ultrasonic chip.
In some embodiments, as shown in figure 3, stomach wall Fetal ECG sensor is individually integrated into ultrasonic sensor and palace
In contracting sensor, at this point, Fetal Heart Rate signal data collection unit 51 is specifically used for:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor, and, pass through the ultrasonic sensor
Obtain second fetus heart rate signal data, wherein the partial electrode that stomach wall Fetal ECG sensor includes is embedded into ultrasound in advance
Between the ultrasonic chip of sensor, and, the other parts electrode that the stomach wall Fetal ECG sensor includes is embedded into palace
The stress meter of contracting sensor；The corresponding fetus of the second fetus heart rate signal data is corresponding with the first Fetal Heart Rate signal data
Fetus it is identical, the acquisition time of the acquisition time of the second fetus heart rate signal data and the first Fetal Heart Rate signal data
It is identical.
Further, the electrode of insertion is not Chong Die with ultrasonic chip, and be embedded in electrode not with and it is not Chong Die with stress meter.
In some embodiments, as shown in figure 4, the ultrasonic chip of ultrasonic sensor is integrated into stomach wall Fetal ECG sensing
In device, at this point, Fetal Heart Rate signal data collection unit 51 is specifically used for:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor, and, it is obtained by ultrasonic sensor
Second fetus heart rate signal data；Wherein, the number for the electrode that stomach wall Fetal ECG sensor includes is greater than or equal to 2；Described
The corresponding fetus of two Fetal Heart Rate signal datas fetus corresponding with the first Fetal Heart Rate signal data is identical, second fetal rhythm
The acquisition time of rate signal data is identical as the acquisition time of the first Fetal Heart Rate signal data, wherein in advance will be described super
The ultrasonic chip of sonic transducer is integrated into the electrode of the stomach wall Fetal ECG sensor.
Further, the ultrasonic chip and the electric signal sensor of the electrode be not be overlapped.
In some embodiments, Fetal Heart Rate signal data collection unit 51 is specifically used for:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor respectively, obtains the by ultrasonic sensor
Two Fetal Heart Rate signal datas.
In some embodiments, Fetal ECG envelope signal and fetal ultrasound envelope signal are analyzed respectively, is selected
The high-quality envelope signal data of envelope signal calculate Fetal Heart Rate, and the Fetal Heart Rate determination unit 53 includes:
First auto-correlation computation result determining module, for carrying out auto-correlation computation to the Fetal ECG envelope signal,
Obtain the first auto-correlation computation result；
Second auto-correlation computation result determining module, for carrying out auto-correlation computation to the fetal ultrasound envelope signal,
Obtain the second auto-correlation computation result；
Signal quality judgment module, for choosing the wave crest and the second auto-correlation computation of the first auto-correlation computation result respectively
As a result wave crest judges to determine the Fetal ECG envelope according to judging result with the presence or absence of multiple proportion between adjacent peaks
The signal quality of signal and fetal ultrasound envelope signal quality；
First Fetal Heart Rate determining module, for the first wave crest of the good auto-correlation computation result of signal quality to be determined as tire
Heart rate.
It should be noted that if judging the adjacent peaks and the second auto-correlation computation knot of the first auto-correlation computation result
All there is multiple proportion in the adjacent peaks of fruit, then the first wave crest of the first auto-correlation computation result is determined as Fetal Heart Rate, alternatively,
The first wave crest of second auto-correlation computation result is determined as Fetal Heart Rate.Alternatively, in some embodiments, further judging first
Whether the multiple proportion of the adjacent peaks of auto-correlation computation result is specified multiple relationship, and, judge the second auto-correlation computation
Whether the multiple proportion of adjacent peaks as a result is specified multiple relationship, if the adjacent peaks of only the first auto-correlation computation result
Meet condition, then the first wave crest of the first auto-correlation computation result is determined as Fetal Heart Rate, otherwise, by the second auto-correlation computation knot
The first wave crest of fruit is determined as Fetal Heart Rate.
In some embodiments, the Fetal Heart Rate determination unit 53 is specifically used for: by directly to the amplitude of envelope signal
It is analyzed, by amplitude, the corresponding envelope signal of amplitude is determined as high-quality envelope signal within a preset range, by signal matter
The first wave crest of measured auto-correlation computation result is determined as Fetal Heart Rate.
In some embodiments, Fetal Heart Rate is calculated according to fetal ultrasound envelope signal and Fetal ECG envelope signal respectively,
Then the trend of 2 Fetal Heart Rates of analytical calculation selects the good Fetal Heart Rate of trend as final Fetal Heart Rate, at this point, described
Fetal Heart Rate determination unit 53 is specifically used for:
The first Fetal Heart Rate is calculated according to the Fetal ECG envelope signal, calculates the according to the fetal ultrasound envelope signal
Two Fetal Heart Rates calculate the difference of first Fetal Heart Rate and second Fetal Heart Rate, if first Fetal Heart Rate and the second fetus
The difference of heart rate is less than or equal to preset difference value threshold value, then first Fetal Heart Rate and/or second Fetal Heart Rate is selected to determine tire
Heart rate counts in preset time really if the difference of first Fetal Heart Rate and second Fetal Heart Rate is greater than preset difference value threshold value
The average value and first Fetal Heart Rate and second Fetal Heart Rate are made poor, selection respectively by the average value of fixed Fetal Heart Rate
The lesser Fetal Heart Rate of absolute difference is as Fetal Heart Rate.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present application constitutes any limit
It is fixed.
Embodiment three:
Fig. 6 is the schematic diagram for the terminal device that one embodiment of the application provides.As shown in fig. 6, the terminal of the embodiment is set
Standby 6 include: processor 60, memory 61 and are stored in the meter that can be run in the memory 61 and on the processor 60
Calculation machine program 62.The processor 60 realizes the step in above-mentioned each embodiment of the method when executing the computer program 62,
Such as step S11 to S13 shown in FIG. 1.Alternatively, the processor 60 realizes above-mentioned each dress when executing the computer program 62
Set the function of each module/unit in embodiment, such as the function of module 51 to 53 shown in Fig. 5.
Illustratively, the computer program 62 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 61, and are executed by the processor 60, to complete the application.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 62 in the terminal device 6 is described.For example, the computer program 62 can be divided
It is cut into Fetal Heart Rate signal data collection unit, envelope signal determination unit, Fetal Heart Rate determination unit, each unit concrete function is such as
Under:
Fetal Heart Rate signal data collection unit, for respectively by different sensors acquisition the first Fetal Heart Rate signal data and
Second fetus heart rate signal data；
Envelope signal determination unit, for determining Fetal ECG envelope signal according to the first Fetal Heart Rate signal data,
Fetal ultrasound envelope signal is determined according to the second fetus heart rate signal data；
Fetal Heart Rate determination unit, for true according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal
Determine Fetal Heart Rate.
The terminal device 6 can be the calculating such as desktop PC, notebook, palm PC and cloud server and set
It is standby.The terminal device may include, but be not limited only to, processor 60, memory 61.It will be understood by those skilled in the art that Fig. 6
The only example of terminal device 6 does not constitute the restriction to terminal device 6, may include than illustrating more or fewer portions
Part perhaps combines certain components or different components, such as the terminal device can also include input-output equipment, net
Network access device, bus etc..
Alleged processor 60 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 61 can be the internal storage unit of the terminal device 6, such as the hard disk or interior of terminal device 6
It deposits.The memory 61 is also possible to the External memory equipment of the terminal device 6, such as be equipped on the terminal device 6
Plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card dodge
Deposit card (Flash Card) etc..Further, the memory 61 can also both include the storage inside list of the terminal device 6
Member also includes External memory equipment.The memory 61 is for storing needed for the computer program and the terminal device
Other programs and data.The memory 61 can be also used for temporarily storing the data that has exported or will export.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module are completed, i.e., the internal structure of described device is divided into different functional unit or module, more than completing
The all or part of function of description.Each functional unit in embodiment, module can integrate in one processing unit, can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above system
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
In embodiment provided herein, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of logical function partition, there may be another division manner in actual implementation, such as
Multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be through some interfaces, device
Or the INDIRECT COUPLING or communication connection of unit, it can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the application realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
It may include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic that can carry the computer program code
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as does not include electric carrier signal and electricity according to legislation and patent practice, computer-readable medium in certain jurisdictions
Believe signal.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (10)
1. a kind of Fetal Heart Rate determines method characterized by comprising
The first Fetal Heart Rate signal data and second fetus heart rate signal data are obtained by different sensors respectively；
Fetal ECG envelope signal is determined according to the first Fetal Heart Rate signal data, according to the second fetus heart rate signal data
Determine fetal ultrasound envelope signal；
Fetal Heart Rate is determined according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal.
2. Fetal Heart Rate as described in claim 1 determines method, which is characterized in that described to obtain the first tire by different sensors
Heart rate signal data and second fetus heart rate signal data include:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor；
Second fetus heart rate signal data, the corresponding fetus of the second fetus heart rate signal data and institute are obtained by ultrasonic sensor
It is identical to state the corresponding fetus of the first Fetal Heart Rate signal data, the acquisition time of the second fetus heart rate signal data and described first
The acquisition time of Fetal Heart Rate signal data is identical, and the stomach wall Fetal ECG sensor has at least two electrode, and described at least 2
A electrode is embedded between the ultrasonic chip of the ultrasonic sensor.
3. Fetal Heart Rate as described in claim 1 determines method, which is characterized in that described to obtain the by different sensors respectively
One Fetal Heart Rate signal data and second fetus heart rate signal data, comprising:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor, wherein in advance senses stomach wall Fetal ECG
The partial electrode that device includes is embedded between the ultrasonic chip of ultrasonic sensor, and, by the stomach wall Fetal ECG sensor
Including other parts electrode be embedded into the stress meter of uterine contraction sensor；
Second fetus heart rate signal data, the corresponding fetus of the second fetus heart rate signal data are obtained by the ultrasonic sensor
Fetus corresponding with the first Fetal Heart Rate signal data is identical, the acquisition time of the second fetus heart rate signal data with it is described
The acquisition time of first Fetal Heart Rate signal data is identical.
4. Fetal Heart Rate as described in claim 1 determines method, which is characterized in that described to obtain the by different sensors respectively
One Fetal Heart Rate signal data and second fetus heart rate signal data, comprising:
The first Fetal Heart Rate signal data is obtained by stomach wall Fetal ECG sensor；
Second fetus heart rate signal data, the corresponding fetus of the second fetus heart rate signal data and institute are obtained by ultrasonic sensor
It is identical to state the corresponding fetus of the first Fetal Heart Rate signal data, the acquisition time of the second fetus heart rate signal data and described first
The acquisition time of Fetal Heart Rate signal data is identical, wherein the ultrasonic chip of the ultrasonic sensor is integrated into the abdomen in advance
In the electrode of wall Fetal ECG sensor.
5. as the described in any item Fetal Heart Rates of Claims 1-4 determine method, which is characterized in that described according to the fetus heart
Electric envelope signal and the fetal ultrasound envelope signal determine that Fetal Heart Rate includes:
Auto-correlation computation is carried out to the Fetal ECG envelope signal, obtains the first auto-correlation computation result；
Auto-correlation computation is carried out to the fetal ultrasound envelope signal, obtains the second auto-correlation computation result；
Choose the wave crest of the first auto-correlation computation result and the wave crest of the second auto-correlation computation result respectively, judge adjacent peaks it
Between whether there is multiple proportion, the Fetal ECG envelope signal and the fetal ultrasound envelope signal are determined according to judging result
Signal quality quality；
The first wave crest of the good auto-correlation computation result of signal quality is determined as Fetal Heart Rate.
6. as the described in any item Fetal Heart Rates of Claims 1-4 determine method, which is characterized in that described according to the fetus heart
Electric envelope signal and the fetal ultrasound envelope signal determine that Fetal Heart Rate includes:
The first Fetal Heart Rate is calculated according to the Fetal ECG envelope signal, second fetus is calculated according to the fetal ultrasound envelope signal
Heart rate；
Calculate the difference of first Fetal Heart Rate and second Fetal Heart Rate；
If the difference of first Fetal Heart Rate and second Fetal Heart Rate is less than or equal to preset difference value threshold value, described first is selected
Fetal Heart Rate and/or second Fetal Heart Rate determine Fetal Heart Rate；
If the difference of first Fetal Heart Rate and second Fetal Heart Rate is greater than preset difference value threshold value, counts and had determined that in preset time
Fetal Heart Rate average value, it is poor respectively to make the average value and first Fetal Heart Rate and second Fetal Heart Rate, and selection is poor
It is worth the lesser Fetal Heart Rate of absolute value as Fetal Heart Rate.
7. a kind of Fetal Heart Rate determining device characterized by comprising
Fetal Heart Rate signal data collection unit, for obtaining the first Fetal Heart Rate signal data and second by different sensors respectively
Fetal Heart Rate signal data；
Envelope signal determination unit, for determining Fetal ECG envelope signal according to the first Fetal Heart Rate signal data, according to
The second fetus heart rate signal data determine fetal ultrasound envelope signal；
Fetal Heart Rate determination unit, for determining tire according to the Fetal ECG envelope signal and the fetal ultrasound envelope signal
Heart rate.
8. Fetal Heart Rate determining device as claimed in claim 7, which is characterized in that the Fetal Heart Rate determination unit includes:
First auto-correlation computation result determining module is obtained for carrying out auto-correlation computation to the Fetal ECG envelope signal
First auto-correlation computation result；
Second auto-correlation computation result determining module is obtained for carrying out auto-correlation computation to the fetal ultrasound envelope signal
Second auto-correlation computation result；
Signal quality judgment module, for choosing the wave crest and the second auto-correlation computation result of the first auto-correlation computation result respectively
Wave crest, judge to determine the Fetal ECG envelope signal according to judging result with the presence or absence of multiple proportion between adjacent peaks
With the signal quality quality of the fetal ultrasound envelope signal；
First Fetal Heart Rate determining module, for the first wave crest of the good auto-correlation computation result of signal quality to be determined as fetal rhythm
Rate.
9. a kind of terminal device, including memory, processor and storage are in the memory and can be on the processor
The computer program of operation, which is characterized in that the processor realizes such as claim 1 to 6 when executing the computer program
The step of any one the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In when the computer program is executed by processor the step of any one of such as claim 1 to 6 of realization the method.
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