CN106770647B - Fat content measuring system and method - Google Patents
Fat content measuring system and method Download PDFInfo
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- CN106770647B CN106770647B CN201611011624.9A CN201611011624A CN106770647B CN 106770647 B CN106770647 B CN 106770647B CN 201611011624 A CN201611011624 A CN 201611011624A CN 106770647 B CN106770647 B CN 106770647B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
Abstract
The present invention provides a kind of fat content measuring system and method.The fat content measuring system includes: ultrasonic meter and user terminal.Ultrasonic meter includes control device, ultrasonic probe and processing unit, and user terminal includes synthesis module and computing module.When being measured using the fat content measuring system, by the ultrasonic echo after being synthesized to same measurand using at least two ultrasonic echos that at least two-stage emitting voltage carries out obtaining after ultrasonic wave transmitting, reception and processing respectively, the fat thickness and fat content of measurand are calculated according to the ultrasonic echo after the synthesis.The fat content measuring system and method improve far-field signal signal-to-noise ratio and keep near-field signals unsaturated, to improve measurement accuracy in the case where not increasing circuit, save the cost.
Description
Technical field
The present invention relates to technical field of ultrasonic application, in particular to a kind of fat content measuring system and method.
Background technique
In traditional ultrasonic measurement instrument, decay in order to compensate for ultrasound echo signal caused by the increase with depth,
Generally echo-signal is amplified using time gain compensation (TGC) circuit, the circuit is complex and costly, is not suitable for rouge
Low cost as fat content measuring instrument, in miniaturized ultrasound apparatus.Another mode uses fixed gain, and in back-end digital
Gain compensation is carried out when processing by the way of digital gain, although which has saved time gain compensation (TGC) circuit, drop
Low cost, but corresponding problem can be brought.Ultrasonic energy can decay when transmitting in human body with depth, attenuation coefficient
Generally 0.81dB/cm*MHz, if ultrasound emission frequency is 2.5MHz, the every transmission 1.5cm depth of ultrasonic energy will be declined
Subtract half, i.e. the every 1.5cm of ultrasound echo signal energy can reduce 3dB.It is just necessary in order to obtain the higher signal-to-noise ratio of far-field signal
Increase emitting voltage, but the increase of emitting voltage necessarily leads to the saturation of near-field signals in the case where gain is fixed.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of fat content measuring system and method, to solve above-mentioned ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of fat content measuring system includes: ultrasonic meter and user terminal, and the ultrasonic meter includes control
Device, ultrasonic probe and processing unit, the user terminal include synthesis module and computing module；
The control device for generating emitting voltage and transmitted waveform, and controls the ultrasonic probe in the transmitting
Emit ultrasonic wave under voltage and transmitted waveform, wherein the control device can generate at least two-stage emitting voltage；
The ultrasonic probe receives its institute for emitting ultrasonic wave to measurand under the control of the control device
Emit the ultrasonic echo of ultrasonic wave, and the ultrasonic echo received is sent to the processing unit；
The processing unit, the ultrasonic echo sent for receiving the ultrasonic probe, and the ultrasonic echo is carried out
Processing, the ultrasonic echo that obtains that treated, and treated that ultrasound returns is sent to the synthesis module of the user terminal by described；
The synthesis module will be to same for receiving and storing the processing unit ultrasonic echo that sends that treated
One measurand at least two is surpassed using what at least two-stage emitting voltage carried out obtaining after ultrasonic wave transmitting, reception and processing respectively
Sound echo synthesized after ultrasonic echo, the synthesis includes carrying out depth point to each ultrasonic echo of acquisition
Section be segmented after ultrasonic echo, every grade of emitting voltage respectively corresponds one section of ultrasonic echo, at least two-stage emitting voltage
Corresponding at least two sections of ultrasonic echos constitute the ultrasonic echo after the synthesis；
The computing module, for calculating the fat thickness and fat of measurand according to the ultrasonic echo after the synthesis
Content.
Further, the user terminal further includes memory module, thick for storing the fat that the computing module calculates
The calculated result of degree and fat content.
Further, the fat content measuring system further includes server；
The computing module is also used to send the calculated result of user's registration information and the fat thickness and fat content
To the server；
The server, for receiving and storing the user's registration information and fat thickness and rouge that the computing module is sent
The calculated result of fat content carries out data sharing with external equipment.
Further, the control device includes: master controller, emitting voltage controller and countdown circuit, described
Master controller is electrically connected with the emitting voltage controller and the countdown circuit, the emitting voltage controller
It is electrically connected with the countdown circuit；
The master controller, for generate and to the emitting voltage controller send digital signal, and generate and to
The countdown circuit sends transmitted waveform；
The emitting voltage controller, including digital analog converter, amplifier and a grade follower is penetrated, the digital analog converter is used
In the digital signal for receiving the master controller generation and emitting voltage is converted by the digital signal, the amplifier is used for
The emitting voltage is amplified, grade follower of penetrating is used to carry out amplified emitting voltage power amplification, and will
Emitting voltage after power amplification is sent to the countdown circuit；
The countdown circuit, for receiving the transmitted waveform and emitting voltage control that the master controller generates
The emitting voltage that device generates, and generating and sending can be such that the pumping signal of the ultrasonic probe transmitting ultrasonic wave to the ultrasound visits
Head.
Further, the processing unit includes: high-pass filter, amplifying circuit, envelope detection circuit and analog-to-digital conversion
Device；
The high-pass filter, for filtering out the low-frequency interference signal in the ultrasonic echo that the ultrasonic probe receives,
Filtered ultrasonic echo is obtained, and filtered ultrasonic echo is sent to the amplifying circuit；
The amplifying circuit, the filtered ultrasonic echo sent for receiving the high-pass filter, to the filtering
Ultrasonic echo afterwards amplifies, and obtains amplified ultrasonic echo, and amplified ultrasonic echo is sent to the envelope
Detecting circuit；
The envelope detection circuit, the amplified ultrasonic echo sent for receiving the amplifying circuit, puts to described
Ultrasonic echo after big carries out envelope detection processing, obtains ultrasonic echo envelope signal, and by the ultrasonic echo envelope signal
It is sent to the analog-digital converter；
Analog-digital converter, the ultrasonic echo envelope signal sent for receiving the envelope detection circuit, and will be described super
Sound echo envelope signal is converted to ultrasonic echo digital signal.
A kind of fat content measuring system includes: control device, ultrasonic probe, processing unit, synthesis module and calculates mould
Block；
The control device for generating emitting voltage and transmitted waveform, and controls the ultrasonic probe in the transmitting
Emit ultrasonic wave under voltage and transmitted waveform, wherein the control device can generate at least two-stage emitting voltage；
The ultrasonic probe receives its institute for emitting ultrasonic wave to measurand under the control of the control device
Emit the ultrasonic echo of ultrasonic wave, and the ultrasonic echo received is sent to the processing unit；
The processing unit, the ultrasonic echo sent for receiving the ultrasonic probe, and the ultrasonic echo is carried out
Processing, the ultrasonic echo that obtains that treated, and treated that ultrasound returns is sent to the synthesis module by described；
Synthesis module will be to same quilt for receiving and storing the processing unit ultrasonic echo that sends that treated
Object is surveyed to return using at least two ultrasounds that at least two-stage emitting voltage carries out obtaining after ultrasonic wave transmitting, reception and processing respectively
Wave synthesized after ultrasonic echo, the synthesis includes carrying out depth to each ultrasonic echo of acquisition to be segmented
Ultrasonic echo after to segmentation, every grade of emitting voltage respectively correspond one section of ultrasonic echo, and at least two-stage emitting voltage institute is right
At least two sections of ultrasonic echos answered constitute the ultrasonic echo after the synthesis；
Computing module, for being contained according to the fat thickness and fat of the ultrasonic echo calculating measurand after the synthesis
Amount；
Display device, for showing the fat thickness and fat content calculated result of measurand.
Further, the fat content measuring system further includes memory module, and the memory module is described for storing
The fat thickness and fat content calculated result for the measurand that computing module calculates.
Further, the fat content measuring system further includes the communication device communicated with external equipment.
A kind of fat content measurement method, which comprises
Ultrasonic wave is emitted to measurand respectively using at least two-stage emitting voltage；
The ultrasonic echo of the ultrasonic wave is received respectively；
The ultrasonic echo is handled respectively, the ultrasonic echo that obtains that treated；
It is obtained after carrying out respectively ultrasonic wave transmitting, reception and processing using at least two-stage emitting voltage to same measurand
At least two ultrasonic echos synthesize after ultrasonic echo, described synthesize includes each ultrasound to acquisition
Echo carries out the ultrasonic echo after depth is segmented, and every grade of emitting voltage respectively corresponds one section of ultrasonic echo, it is described extremely
At least two sections of ultrasonic echos corresponding to few two-stage emitting voltage constitute the ultrasonic echo after the synthesis；
The fat thickness and fat content of measurand are calculated according to the ultrasonic echo after synthesis.
Further, the ultrasonic echo according to after synthesis calculates the fat thickness of measurand and fat content walks
Suddenly, comprising:
First derivative is asked to obtain the sampling time of each interface the ultrasound echo signal for being more than threshold value；
The fat thickness of the measurand is calculated according to the sampling time；
The fat content of measurand is obtained according to the fat thickness.
Fat content measuring system and method provided by the invention are improved in the case where not increasing circuit, save the cost
Far-field signal signal-to-noise ratio and keep near-field signals unsaturated, to improve measurement accuracy.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of fat content measuring system provided in an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of control device provided in an embodiment of the present invention.
Fig. 3 is the structural schematic diagram of processing unit provided in an embodiment of the present invention.
Fig. 4 is another structural schematic diagram of user terminal provided in an embodiment of the present invention.
Fig. 5 is another structural schematic diagram of fat content measuring system provided in an embodiment of the present invention.
Fig. 6 is the schematic diagram that ultrasonic meter provided in an embodiment of the present invention measures.
Fig. 7-a is provided in an embodiment of the present invention to obtain showing for treated ultrasonic echo using first order emitting voltage
It is intended to.
Fig. 7-b is provided in an embodiment of the present invention to obtain showing for treated ultrasonic echo using second level emitting voltage
It is intended to.
Fig. 7-c is provided in an embodiment of the present invention to obtain showing for treated ultrasonic echo using third level emitting voltage
It is intended to.
Fig. 7-d is the schematic diagram of the ultrasonic echo after synthesis module provided in an embodiment of the present invention synthesis.
Fig. 8 is the schematic diagram that the ultrasonic echo provided in an embodiment of the present invention to after synthesis does threshold process.
Fig. 9 is the signal that the signal segment provided in an embodiment of the present invention in ultrasonic echo more than threshold value seeks first derivative
Figure.
Another structural schematic diagram of Figure 10 fat content measuring system provided in an embodiment of the present invention.
Another structural schematic diagram of Figure 11 fat content measuring system provided in an embodiment of the present invention.
Figure 12 is the flow chart of fat content measurement method provided in an embodiment of the present invention.
Figure 13 is the flow chart of step S105 in fat content measurement method provided in an embodiment of the present invention.
Icon: 1- fat content measuring system；10- ultrasonic meter；11- control device；12- ultrasonic probe；13- processing
Device；50- user terminal；51- synthesis module；52- computing module；111- master controller；112- emitting voltage controller；113-
Countdown circuit；1121- digital analog converter；1122- amplifier；1123- penetrates a grade follower；131- high-pass filter；132-
Amplifying circuit；133- envelope detection circuit；134- analog-digital converter；53- memory module；90- server；54- display device；
55- communication device；3- skin；5- fat deposit；7- fascia superficialis layer；9- deep fascia layer.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In description of the invention
In, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and should not be understood as only or imply opposite
Importance.
Referring to Fig. 1, the present invention provides a kind of fat content measuring systems 1, comprising: ultrasonic meter 10 and user are whole
End 50.Wherein, ultrasonic meter 10 includes control device 11, ultrasonic probe 12 and processing unit 13, and user terminal 50 includes closing
At module 51 and computing module 52.
Control device 11 for generating emitting voltage and transmitted waveform, and controls ultrasonic probe 12 in the emitting voltage
With emit ultrasonic wave under transmitted waveform.Wherein, control device 11 can generate at least two-stage emitting voltage.Optionally, in this implementation
In example, it is 1V, 2V and 4V respectively that control device 11, which can generate 3 grades of emitting voltages,.It should be understood that the fat thickness of measurand is not
Together, the size of used voltage sum of series voltage value may be different, thus the voltage sum of series electricity that control device 11 generates
Pressure value should be set according to the actual situation, be not limited thereto.
Referring to Fig. 2, optionally, in the present embodiment, control device 11 includes: master controller 111, emitting voltage control
Device 112 and countdown circuit 113.Master controller 111 and emitting voltage controller 112 and countdown circuit 113 are electric respectively
Property connection, emitting voltage controller 112 and countdown circuit 113 are electrically connected.Master controller 111, for generating and to hair
Radio pressure controller 112 sends digital signal, and generates and send transmitted waveform to countdown circuit 113.Optionally, main
Controller 111 can use FPGA, DSP, single-chip microcontroller, the processors such as ARM.Emitting voltage controller 112, including digital analog converter
1121, amplifier 1122 and grade follower 1123 is penetrated.Wherein, digital analog converter 1121 is used to receive the generation of master controller 111
Digital signal simultaneously converts emitting voltage for the digital signal, and amplifier 1122 is used to amplify the emitting voltage,
Grade follower 1123 is penetrated for carrying out power amplification to amplified emitting voltage, and the emitting voltage after power amplification is sent
To countdown circuit 113.Countdown circuit 113, for receiving transmitted waveform and the emitting voltage of the generation of master controller 111
The emitting voltage that controller 112 generates, and the pumping signal that ultrasonic probe 12 can be made to emit ultrasonic wave is generated and sent to described
Ultrasonic probe 12.
Ultrasonic probe 12 receives its institute for emitting ultrasonic wave to measurand under the control of the control device 11
Emit the ultrasonic echo of ultrasonic wave, and the ultrasonic echo received is sent to the processing unit 13.
Processing unit 13, the ultrasonic echo sent for receiving the ultrasonic probe 12, and the ultrasonic echo is carried out
Processing, the ultrasonic echo that obtains that treated, and treated that ultrasound returns is sent to the synthesis mould of the user terminal 50 by described
Block 51.
Referring to Fig. 3, optionally, in the present embodiment, processing unit 13 includes: high-pass filter 131, amplifying circuit
132, envelope detection circuit 133 and analog-digital converter 134.High-pass filter 131 is received for filtering out the ultrasonic probe 12
Ultrasonic echo in low-frequency interference signal, obtain filtered ultrasonic echo, and filtered ultrasonic echo is sent to institute
State amplifying circuit 132.The amplifying circuit 132 is returned for receiving the filtered ultrasound that the high-pass filter 131 is sent
Wave amplifies the filtered ultrasonic echo, obtains amplified ultrasonic echo, and amplified ultrasonic echo is sent out
It send to the envelope detection circuit 133.The envelope detection circuit 133, the amplification sent for receiving the amplifying circuit 132
Ultrasonic echo afterwards carries out envelope detection processing to the amplified ultrasonic echo, obtains ultrasonic echo envelope signal, and will
The ultrasonic echo envelope signal is sent to the analog-digital converter 134.Analog-digital converter 134, for receiving the envelope inspection
The ultrasonic echo envelope signal that wave circuit 133 is sent, and the ultrasonic echo envelope signal is converted into ultrasonic echo number letter
Number.
Processing unit 13 and user terminal 50 be built-in with the data-interface communicated with external equipment, bluetooth module,
WiFi module etc..User terminal 50 can be the electronic equipments such as smart phone, tablet computer and computer.
Synthesis module 51 will be to same for receiving and storing the processing unit 13 ultrasonic echo that sends that treated
One measurand at least two is surpassed using what at least two-stage emitting voltage carried out obtaining after ultrasonic wave transmitting, reception and processing respectively
Sound echo synthesized after ultrasonic echo, the synthesis includes carrying out depth point to each ultrasonic echo of acquisition
Section be segmented after ultrasonic echo, every grade of emitting voltage respectively corresponds one section of ultrasonic echo, at least two-stage emitting voltage
Corresponding at least two sections of ultrasonic echos constitute the ultrasonic echo after the synthesis.
Computing module 52, for being contained according to the fat thickness and fat of the ultrasonic echo calculating measurand after the synthesis
Amount.
Referring to Fig. 4, optionally, in the present embodiment, the user terminal 50 further includes memory module 53, for storing
The calculated result of fat thickness and fat content that the computing module 52 calculates.
Referring to Fig. 5, optionally, in the present embodiment, the fat content measuring system 1 further includes server 90.Institute
Computing module 52 is stated, is also used to send the calculated result of user's registration information and the fat thickness and fat content to the clothes
Business device 90.The server 90, the user's registration information and fat thickness sent for receiving and storing the computing module 52
And the calculated result of fat content, data sharing is carried out with external equipment.
Referring to Fig. 6, in the fat thickness using fat content measuring system 1 provided by the invention measurement human body a part
When with fat content, optionally, control device 11 can generate 3 grades of emitting voltages, and each position measurement is three times.It measures for the first time,
By the ultrasonic probe 12 of ultrasonic meter 10 close to skin 3, exists between ultrasonic probe 12 and skin 3 contain under normal circumstances
Couplant.Ultrasonic probe 12 generates ultrasonic wave under the control for the first order emitting voltage that control device 11 generates, and ultrasonic wave is worn
Ultrasonic echo is reflected to form by ultrasonic probe when crossing the interface of skin 3, fat deposit 5, fascia superficialis layer 7 and deep fascia layer 9
12 are received, and the ultrasonic echo received is sent to processing unit 13 through filtering, amplification, envelope detection and mould by ultrasonic probe 12
After the processing such as number conversion, by it is described treated ultrasonic echo is sent to the user terminal 50 synthesis module 51.Second of measurement
The step of the step of measuring with third time measures with first time is identical, unlike, ultrasonic probe is in control device respectively
Ultrasonic wave is generated under the control of 11 second level emitting voltages and third level emitting voltage generated.
After measuring three times, synthesis module 51 receives three treated ultrasonic echo, such as Fig. 7-a, Fig. 7-b and figure
7-c.A indicates that the first segment of the ultrasonic echo after the segmentation obtained using first order emitting voltage, B indicate to emit using the second level
The second segment of ultrasonic echo after the segmentation that voltage obtains, C indicate the ultrasound after the segmentation obtained using third level emitting voltage
The third section of echo.Fig. 7-d is the schematic diagram of the ultrasonic echo after synthesis.Ultrasonic echo as shown in Fig. 7-d, after the synthesis
First segment be the ultrasonic echo after the segmentation obtained using first order emitting voltage first segment, second segment is using the second level
The second segment of ultrasonic echo after the segmentation that emitting voltage obtains, after third section is the segmentation obtained using third level emitting voltage
Ultrasonic echo third section.
Ultrasonic echo after synthesis is sent to computing module 52, is contained with calculating fat thickness and the fat of measurand
Amount.
Threshold process is done to the ultrasonic echo after synthesis first, i.e., 1 is taken as higher than the signal of threshold value, lower than the signal of threshold value
It is taken as 0, as shown in Figure 8.
The selection of threshold value is depending on fat thickness and existing experience.Then to the signal segment in ultrasonic echo being more than threshold value
First derivative is sought, if the first derivative of certain signaling point is greater than a positive threshold value, and the first derivative of latter signal point is less than one
A negative threshold value, then the signaling point is noted as an interface signaling point T (n), as shown in Figure 9.
Secondly, calculating the thickness of each layering, calculation formula are as follows: H (n)=T (n) × V/2
Wherein, V is the speed that ultrasonic wave is propagated in human body, and since invention mainly calculates fat thickness, which is answered
This is spread speed of the ultrasonic wave in fat deposit 5, so the value of V is 1450m/s.T (n) is to receive each interface to generate
Ultrasonic echo time and the time of the ultrasonic echo for the interface generation for receiving skin 3 and fat deposit 5 difference.H (n) is
Skin 3 arrives the thickness of each interface.Generally, when calculating 5 thickness of fat deposit, 3 layers of skin of thickness can be ignored, so rouge
The time for the ultrasonic echo that the thickness of fat layer 5 can be generated directly with the interface for receiving fat deposit 5 and deep fascia layer 9 carries out
It calculates.
Finally, calculating fat content according to fat thickness.User terminal 50 instructs operator to complete left in operation interface
Right rear waist, 5 Thickness sensitivity of fat deposit at the positions such as interior survey of left and right thigh, and gender, weight and waist size are inputted as required,
It estimates Determination of Total Body Fat (percentage) accordingly, specifically estimates formula are as follows:
Women: BF%=(0.183 × BW+0.251 × UVW+0.126 × UMB+0.169 × THI-20.7)/BW ×
100%
Male: BF%=(- 0.237 × BW+0.482 × UVW+0.195 × UMB+0.209 × THI-18.9)/BW ×
100%
Wherein, BW is weight (unit, kg), and UVW is waistline (unit, mm), and UMB is that the left and right rear waist fat of measurement is thick
The average value (unit, mm) of degree, THI are the average value (unit, mm) of the left and right femoribus internus fat thickness of measurement.
User terminal 50 is recorded by Determination of Total Body Fat of the storage module to the measurement.When completion repeatedly measurement
Afterwards, user terminal 50 can also draw the change curve and trend of Determination of Total Body Fat.User terminal 50 can also pass through service
Device 90 and sport and body-building logging software, such as Keep, apple etc. carry out data sharing, carry out to the effect of the movements such as body-building, weight-reducing
Objective record.User terminal 50 can also by each position fat thickness, Determination of Total Body Fat and shared workout data into
Row analysis, and advise.
Figure 10 please be participate in, the present invention also provides a kind of fat content measuring systems 1, measure with fat content shown in FIG. 1
System 1 is roughly the same, the difference is that, in fat content measuring system 1 shown in Fig. 10, synthesis module 51 and computing module
52 are integrated in one with control device 11, ultrasonic probe 12 and processing unit 13, and increase display device 54, for showing quilt
Survey the fat thickness and fat content calculated result of object.
Figure 11 is please referred to, optionally, in the present embodiment, the fat content measuring system 1 can also include for depositing
Store up the fat thickness of measurand and the memory module 53 of fat content calculated result that the computing module 52 calculates and with
The communication device 55 of external equipment communication.
Figure 12 is please referred to, the embodiment of the present invention also provides a kind of fat content measurement method, which comprises step
S101, step S102, step S103, step S104 and step S105.
Step S101 emits ultrasonic wave to measurand respectively using at least two-stage emitting voltage；
Step S102 receives the ultrasonic echo of the ultrasonic wave respectively；
Step S103 is respectively handled the ultrasonic echo, the ultrasonic echo that obtains that treated；
Step S104 will carry out respectively ultrasonic wave transmitting using at least two-stage emitting voltage to same measurand, receive
And the ultrasonic echo after processing after at least two ultrasonic echos that obtain are synthesized, the synthesis includes to acquisition
Each ultrasonic echo carry out the ultrasonic echo after depth be segmented, every grade of emitting voltage respectively corresponds one section of ultrasound time
Wave, at least two sections of ultrasonic echos corresponding at least two-stage emitting voltage constitute the ultrasonic echo after the synthesis；
Step S105 calculates the fat thickness and fat content of measurand according to the ultrasonic echo after synthesis.
Please refer to Figure 13, optionally, in the present embodiment, step S105 include: sub-step S1051, sub-step S1052 and
Sub-step S1053.
Sub-step S1051 asks first derivative to obtain the sampling time of each interface the ultrasound echo signal for being more than threshold value；
The fat thickness of the measurand is calculated according to the sampling time by sub-step S1052；
Sub-step S1053 obtains the fat content of measurand according to the fat thickness.
Fat content measuring system 1 and method provided by the invention are mentioned in the case where not increasing circuit, save the cost
High far-field signal signal-to-noise ratio and keep near-field signals unsaturated, to improve measurement accuracy.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " setting ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected.It can
To be mechanical connection, it is also possible to be electrically connected.It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements.For the ordinary skill in the art, it can understand that above-mentioned term exists with concrete condition
Concrete meaning in the present invention.
In the description of the present invention, it is also necessary to explanation, the orientation of the instructions such as term " on ", "lower", "inner", "outside" or
Positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fat content measuring system, including ultrasonic meter, which is characterized in that further include: user terminal, the ultrasound
Measuring instrument includes control device, ultrasonic probe and processing unit, and the user terminal includes synthesis module and computing module；
The control device for generating emitting voltage and transmitted waveform, and controls the ultrasonic probe in the emitting voltage
With emit ultrasonic wave under transmitted waveform, wherein the control device can generate at least two-stage emitting voltage；
The ultrasonic probe receives it and is emitted for emitting ultrasonic wave to measurand under the control of the control device
The ultrasonic echo of ultrasonic wave, and the ultrasonic echo received is sent to the processing unit；
The processing unit, the ultrasonic echo sent for receiving the ultrasonic probe, and the ultrasonic echo is handled,
The ultrasonic echo that obtains that treated, and treated that ultrasound returns is sent to the synthesis module of the user terminal by described；
The synthesis module will be to same quilt for receiving and storing the processing unit ultrasonic echo that sends that treated
Object is surveyed to return using at least two ultrasounds that at least two-stage emitting voltage carries out obtaining after ultrasonic wave transmitting, reception and processing respectively
Wave synthesized after ultrasonic echo, the synthesis includes carrying out depth to each ultrasonic echo of acquisition to be segmented
Ultrasonic echo after to segmentation, every grade of emitting voltage respectively correspond one section of ultrasonic echo, and at least two-stage emitting voltage institute is right
At least two sections of ultrasonic echos answered constitute the ultrasonic echo after the synthesis；The computing module, after according to the synthesis
Ultrasonic echo calculate measurand fat thickness and fat content.
2. fat content measuring system according to claim 1, which is characterized in that the user terminal further includes storage mould
Block, for storing the calculated result of the fat thickness that the computing module calculates and fat content.
3. fat content measuring system according to claim 1, which is characterized in that the fat content measuring system is also wrapped
Include server；
The computing module is also used to send the calculated result of user's registration information and the fat thickness and fat content to institute
State server；
The server contains for receiving and storing user's registration information and fat thickness that the computing module is sent and fat
The calculated result of amount carries out data sharing with external equipment.
4. fat content measuring system according to claim 1, which is characterized in that the control device includes: main control
Device, emitting voltage controller and countdown circuit, the master controller and the emitting voltage controller and the transmitting are controlled
Circuit processed is electrically connected, and the emitting voltage controller and the countdown circuit are electrically connected；
The master controller, for generating and sending digital signal, and generation and Xiang Suoshu to the emitting voltage controller
Countdown circuit sends transmitted waveform；
The emitting voltage controller, including digital analog converter, amplifier and a grade follower is penetrated, the digital analog converter is for connecing
It receives the digital signal that the master controller generates and converts emitting voltage for the digital signal, the amplifier is used for institute
It states emitting voltage to amplify, grade follower of penetrating is for carrying out power amplification to amplified emitting voltage, and by power
Amplified emitting voltage is sent to the countdown circuit；
The countdown circuit, for receiving the transmitted waveform and emitting voltage controller production that the master controller generates
Raw emitting voltage, and generating and sending can make the pumping signal of the ultrasonic probe transmitting ultrasonic wave to the ultrasonic probe.
5. fat content measuring system according to claim 1, which is characterized in that the processing unit includes: high pass filter
Wave device, amplifying circuit, envelope detection circuit and analog-digital converter；The high-pass filter connects for filtering out the ultrasonic probe
The low-frequency interference signal in ultrasonic echo received obtains filtered ultrasonic echo, and filtered ultrasonic echo is sent
To the amplifying circuit；
The amplifying circuit, the filtered ultrasonic echo sent for receiving the high-pass filter, to described filtered
Ultrasonic echo amplifies, and obtains amplified ultrasonic echo, and amplified ultrasonic echo is sent to the envelope detection
Circuit；
The envelope detection circuit, the amplified ultrasonic echo sent for receiving the amplifying circuit, after the amplification
Ultrasonic echo carry out envelope detection processing, obtain ultrasonic echo envelope signal, and the ultrasonic echo envelope signal is sent
To the analog-digital converter；
Analog-digital converter, the ultrasonic echo envelope signal sent for receiving the envelope detection circuit, and the ultrasound is returned
Wave envelope signal is converted to ultrasonic echo digital signal.
6. a kind of fat content measuring system, including control device, ultrasonic probe, processing unit, which is characterized in that further include:
Synthesis module and computing module；
The control device for generating emitting voltage and transmitted waveform, and controls the ultrasonic probe in the emitting voltage
With emit ultrasonic wave under transmitted waveform, wherein the control device can generate at least two-stage emitting voltage；
The ultrasonic probe receives it and is emitted for emitting ultrasonic wave to measurand under the control of the control device
The ultrasonic echo of ultrasonic wave, and the ultrasonic echo received is sent to the processing unit；
The processing unit, the ultrasonic echo sent for receiving the ultrasonic probe, and the ultrasonic echo is handled,
The ultrasonic echo that obtains that treated, and treated that ultrasound returns is sent to the synthesis module by described；
Synthesis module will be to same tested pair for receiving and storing the processing unit ultrasonic echo that sends that treated
As using at least two-stage emitting voltage carry out respectively at least two ultrasonic echos obtained after ultrasonic wave transmitting, reception and processing into
Row synthesize after ultrasonic echo, described synthesize includes being segmented to each ultrasonic echo of acquisition progress depth point
Ultrasonic echo after section, every grade of emitting voltage respectively correspond one section of ultrasonic echo, corresponding at least two-stage emitting voltage
At least two sections of ultrasonic echos constitute the ultrasonic echo after the synthesis；
Computing module, for calculating the fat thickness and fat content of measurand according to the ultrasonic echo after the synthesis；
Display device, for showing the fat thickness and fat content calculated result of measurand.
7. fat content measuring system according to claim 6, which is characterized in that the fat content measuring system is also wrapped
Memory module is included, the memory module is used to store the fat thickness and fat content for the measurand that the computing module calculates
Calculated result.
8. fat content measuring system according to claim 7, which is characterized in that the fat content measuring system is also wrapped
Include the communication device communicated with external equipment.
9. a kind of fat content measurement method, which is characterized in that the described method includes:
Ultrasonic wave is emitted to measurand respectively using at least two-stage emitting voltage；
The ultrasonic echo of the ultrasonic wave is received respectively；
The ultrasonic echo is handled respectively, the ultrasonic echo that obtains that treated；
By carry out obtaining after ultrasonic wave transmitting, reception and processing respectively using at least two-stage emitting voltage to same measurand
At least two ultrasonic echos synthesized after ultrasonic echo, the synthesis includes each ultrasonic echo to acquisition
The ultrasonic echo after depth is segmented is carried out, every grade of emitting voltage respectively corresponds one section of ultrasonic echo, and described at least two
At least two sections of ultrasonic echos corresponding to grade emitting voltage constitute the ultrasonic echo after the synthesis；
The fat thickness and fat content of measurand are calculated according to the ultrasonic echo after synthesis.
10. fat content measurement method according to claim 9, which is characterized in that the ultrasound according to after synthesis is returned
The fat thickness and fat content step of wave calculating measurand, comprising:
First derivative is asked to obtain the sampling time of each interface the ultrasound echo signal for being more than threshold value；
The fat thickness of the measurand is calculated according to the sampling time；
The fat content of measurand is obtained according to the fat thickness.
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| CN109009224A (en) * | 2018-07-06 | 2018-12-18 | 北京工业大学 | Subcutaneous fat thickness measuring instrument based on ultrasound |
| US11779312B2 (en) * | 2019-06-28 | 2023-10-10 | Siemens Medical Solutions Usa, Inc. | Ultrasound medical imaging with optimized speed of sound based on fat fraction |
| CN110313938B (en) * | 2019-08-01 | 2021-03-23 | 无锡海斯凯尔医学技术有限公司 | Subcutaneous tissue thickness measuring method, device, equipment and storage medium |
| CN113865528A (en) * | 2021-09-24 | 2021-12-31 | 天津理工大学 | Portable pork backfat measuring instrument and system |
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