CN104614728B - A kind of supersonic imaging device and imaging method - Google Patents
A kind of supersonic imaging device and imaging method Download PDFInfo
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- CN104614728B CN104614728B CN201510080856.9A CN201510080856A CN104614728B CN 104614728 B CN104614728 B CN 104614728B CN 201510080856 A CN201510080856 A CN 201510080856A CN 104614728 B CN104614728 B CN 104614728B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8911—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a single transducer for transmission and reception
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8909—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration
- G01S15/8915—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using a static transducer configuration using a transducer array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/8965—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using acousto-optical or acousto-electronic conversion techniques
- G01S15/8975—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques using acousto-optical or acousto-electronic conversion techniques using acoustical image/electron beam converter tubes
Abstract
The present invention relates to a kind of supersonic imaging device and imaging methods, the present invention is compared with conventional ultrasound imaging device, array element of the invention every time for emitting and receiving can be at least one, it is also drastically reduced so as to enormously simplify the cost of transmitting and receiving circuit and the power consumption of the port number transmitting that brings of reduction and receiving circuit；In addition, due to eliminating transmitting multichannel delays time to control in scanning imagery module, receiving the signal processings such as multichannel Beam synthesis, dynamic filter, the control and signal processing circuit also become extremely simple, the requirement of the FPGA or DSP that perform these controls and signal processing are thus greatly reduced, reduces further the power consumption and cost of circuit.
Description
Technical field
The present invention relates to a kind of only with the transmitting and reception realization low-power consumption, inexpensive ultrasound that can be at least single array element
Imaging device and its imaging method.
Background technology
The hair of different array elements is set when conventional ultrasound image-forming step is scans every time according to the position of the transmitting focus of setting
Focusing delay parameter is penetrated, multichannel emission delay control device generates the transmitted waveform of different delayed time according to these delay parameters,
Since control device output is low-voltage signal, low-voltage signal is using high pressure transmitted waveform is generated after high drive, these are not
After the array element on probe has been encouraged with the high pressure transmitted waveform being delayed, array element generates ultrasonic signal, the ultrasonic signal of different delayed time
The transmitting focal position set in ultrasonic imaging medium focuses on, and obtains the transmitting sound field that energy is concentrated very much.Ultrasonic wave is in medium
(so-called medium can be tissue in medical ultrasound image either concrete or bloom etc. in industrial nondestructive testing)
Interior propagation generates scatter echo or reflection echo when running into scattering or reflectance target.Device utilizes at least 16 near launching beam
A array element receives scattering and reflection echo.Receiving circuit is destroyed in order to avoid being used for the high-voltage signal emitted, before receiving circuit
It needs the transmitting signal isolation of high pressure.Since the echo of reception is very weak, it is necessary to be amplified, filter to the small-signal of reception
Etc. analog-to-digital conversion (ADC) is carried out after analog signal processings, the digital signal of acquisition inputs the high-speed figures such as FPGA or DSP again
Signal processor carries out reception Beam synthesis.Echo is calculated according to the position of received scanline and reaches prolonging for different probe array elements
When, it is superimposed after different delay process to the echo-signal of the array element to realize reception Beam synthesis, it is receiving
Dynamic aperture technology can be used during Beam synthesis, so as to obtain signal-to-noise ratio, the preferable image space of signal after preferable synthesis
Resolution ratio, less near field noise jamming.So-called dynamic aperture technology is exactly to be closed in shallower position using the echo of less array element
Into being synthesized in deep place using more array element echo.Signal after Beam synthesis is examined by dynamic filter, envelope (amplitude)
Host module is uploaded to after the Digital Signal Processing such as survey, log-compressed and does further post processing of image and display digital scan
Display is output to after the processing such as conversion (DSC) to show.
For the spatial resolution that has obtained, it is necessary to which big imaging aperture, that is, need the array number more much bigger than 16 simultaneously
For emitting and receiving, the physical channel number generally used in existing product is at least 64 passages, i.e., can have most 64 simultaneously
A array element is used to emit and receive.So many port number emits and receives simultaneously, and corresponding hardware cost is very high, Er Qiewei
Support so much port number, corresponding control and receive Beam synthesis complexity it is also very high.Nonetheless, due to hair
Different depth dynamic focusing can not be realized by penetrating, therefore (i.e. imaging sets different transmittings burnt every time using multi-focal point mosaic technology
Then point depth is used further to last imaging after multiple imaging signal splicing) although different depths can be improved to a certain extent
The uniformity of the whole audience resolution ratio of degree, but the frame per second of imaging is sacrificed significantly.In addition, the parallel substantial amounts of array element of scanning participates in every time
The power consumption of transmitting and multichannel device causes the power consumption of conventional ultrasound all very big (big can reach hundreds of watts).
It is disclosed in CN 102697524 and only emits spherical wave with 1~4 array element and receive array elements and traveling wave with multiple
The multiple wave beams of Shu Hecheng, the imaging method that the reception wave beam that adjacent transmission scans is added again.Although this method greatly reduces hair
Power is penetrated, and the reception wave beam addition scanned by adjacent transmission realizes the dynamic focusing of transmitting.But this method still requires
System has more receiving channel for parallel reception Beam synthesis, and requirement has large number of parallel beam synthesis in fact
When calculate, therefore the hardware complexity of receiving channel and cost be even imaged than conventional ultrasound it is also high, cause system complexity with
Power consumption is still high.
The content of the invention
The shortcoming mentioned in regarding to the issue above, the present invention provide a kind of supersonic imaging device and imaging method, are
Realization above-mentioned purpose, the present invention are realized by following technical scheme.
A kind of supersonic imaging device, including probe mechanism, image scanning mechanism and main unit mechanism, the probe mechanism, into
As sweep mechanism and main unit mechanism are sequentially connected electrically,
The probe mechanism includes probe, and multiple array elements are provided in the probe；
The image scanning mechanism includes high-voltage driving device, analog signal processing device, analog-to-digital conversion device and control/number
According to interface arrangement, wherein,
The high-voltage driving device is used for the emission control parameter signal of receiving host mechanism transmission, the emission control ginseng
Number signal can include transmitted waveform and transmitting pulse repetition period, the high pressure that the transmitted waveform generates after high drive
Signal sends the probe mechanism to,
The analog signal processing device be used for the ultrasonic echo signal that will receive successively into horizontal high voltage emit every
From, amplification, filtering process, and will treated that echo-signal sends analog-to-digital conversion device to, in the analog signal processing device
There are one high pressure transmitting isolation circuit, the effect of the high_voltage isolation circuit is the voltage of the ultrasonic echo signal of input for middle setting
May be tens volts, but output can be controlled below 1 volt, so as to play the role of protecting receipt of subsequent circuit, the mould
Number converters are used for treated echo-signal the is converted into digital signal, and by the digital data transmission to control/
DIU data interface unit,
Control/the DIU data interface unit uploads to for caching the digital signal received by data-interface
Main unit mechanism is additionally operable to receive the control parameter signal that the main unit mechanism is sent to the image scanning mechanism, the control
Parameter signal includes at least emission control parameter signal, and sends the emission control parameter signal to the high drive and fill
It puts；
The main unit mechanism includes control device and digital signal processing device, wherein,
The control device is used to generating parameter needed for image scanning mechanism, and by the parameter by the control/
DIU data interface unit is transmitted to the image scanning mechanism.
The digital signal processing device is electrically connected with the control/DIU data interface unit, including the first process part and
Second processing part, first process part are used to carry out wave beam conjunction to the digital signal of the echo of not homogeneous scanning
Into the second processing part is used to carry out the signal of Beam synthesis output processing generation ultrasonoscopy, and will generation ultrasound
Image, which uploads to, exports display on display.
First process part in the digital signal processing device is mounted in the imaging scanner, wave beam
The output signal of synthesis uploads to the main unit mechanism by control/DIU data interface unit again and carries out the second processing part
Processing.
A kind of ultrasonic imaging method of supersonic imaging device, comprises the following steps：
Step 1, the control parameter of imaging sweep mechanism is pre-set, the emission control parameter signal passes through high drive
High-voltage signal is obtained after device processing, the high-voltage signal is sent to probe mechanism；
Step 2, under the action of the high-voltage signal, probe proceeds by transmitting and receives signal, and surpassing reception
Sound echo signal transmission gives the image scanning mechanism；
Step 3, digital signal is obtained to ultrasonic echo signal progress analog signal processing, analog-to-digital conversion, to institute
It states digital signal and is cached and uploaded main unit mechanism；
Step 4, carry out Beam synthesis to the digital signal of upload to handle to obtain Beam synthesis signal, to the wave beam
Composite signal carries out further Digital Signal Processing and obtains ultrasonoscopy, and is uploaded to display.
Step 1 specifically comprises the following steps：
Step 1.1, image-forming condition set by user is inputted in the control device in main unit mechanism, by calculating or reading
Image-forming condition set by user obtains the control parameter of image scanning mechanism, and control parameter is transmitted waveform control signal, pulse
Repetition period signal, the control parameter signal of the image scanning mechanism pass through control/data in the form of the voltage signal of low pressure
Interface arrangement is sent to the image scanning mechanism,
Step 1.2, the control parameter signal of reception is converted to use by the high-voltage driving device in the image scanning mechanism
In the high-voltage signal of transmitting, and the high-voltage signal is sent to the probe in probe mechanism.
In step 2, ultrasound is generated after the high-voltage signal excitation that at least one array element is received in probe when scanning every time
Ripple is simultaneously transmitted in medium,
The ultrasonic wave, which enters after medium encounters target, generates scattering or the ultrasonic echo reflected, every time during scanning at least
The ultrasonic echo signal is transferred to the image scanning mechanism by one array element for receiving the ultrasonic echo.
Step 3 specifically comprises the following steps：
Step 3.1, analog signal processing device by the ultrasonic echo signal of reception successively into horizontal high voltage emit every
From, amplification, filtering process, and will treated that echo-signal sends analog-to-digital conversion device to,
Step 3.2, the analog-to-digital conversion device is by treated echo-signal the is converted into digital signal, and by the number
Word signal transmission to control/DIU data interface unit,
Step 3.3, the digital signal that the control/DIU data interface unit caching receives, and by data-interface
Pass to the main unit mechanism.
Step 4 specifically comprises the following steps：
Step 4.1, digital signal processing device is true according to the spatial position of transmitting array element, reception array element and received scanline
Fixed delay parameter folds the digital signal for the echo that the not homogeneous that the control/DIU data interface unit uploads scans into line delay
Add, so as to realize the Beam synthesis of transmitting and reception simultaneously, form Beam synthesis signal,
Step 4.2, dynamic filter, envelope detection, log-compressed, display digital scan are carried out to the Beam synthesis signal
Translation process obtains ultrasonoscopy, and the ultrasonoscopy is output on display and is shown.
In step 4.1, wave beam conjunction is calculated previously according to the spatial position of transmitting array element, reception array element and received scanline
Into parameter and be stored in the control device (8), the parameter of the storage is directly searched when Beam synthesis is handled to not
The echo of homogeneous scanning is superimposed synthesis after carrying out different delays.
In step 4.2, the Beam synthesis processing procedure further includes a dynamic aperture processing procedure.
The probe every time scanning for transmitting array element and identical or different for the element position of reception.
Beneficial effects of the present invention are：
1st, the system is compared with conventional ultrasound imaging system, and array element of the scanning for emitting and receiving can be at least every time
One, so as to enormously simplify the transmitting that brings of reduction of the complexity (cost) and port number of transmitting and receiving circuit and connect
The power consumption for receiving circuit also drastically reduces；Further, since transmitting multichannel delays time to control is eliminated in scanning imagery module, is received
The signal processings such as multichannel Beam synthesis, dynamic filter, the control and signal processing circuit also become extremely simple, so as to big
The big requirement for reducing the FPGA or DSP that perform these controls and signal processing reduces further the power consumption and cost of circuit.
2nd, the echo of homogeneous scanning does not upload to host module and carries out offline Beam synthesis and signal processing, i.e., without picture
Traditional imaging systems often scan a line like that be needed to carry out a Beam synthesis in real time, can be realized in new imaging system whole
After the completion of frame scan, offline by the disposable completion Beam synthesis of all received scanlines all batches.Existing CPU, GPU or
ARM+GPU framework calculated performances are fully able to bear corresponding batch Beam synthesis computing, and with intelligent and portable equipment
Popularization, the cost and power consumption of these computing chips are become better and better with all controlling.
Description of the drawings
Fig. 1 is a kind of structure diagram of supersonic imaging device of the present invention；
Fig. 2 is the structure diagram of conventional ultrasound imaging device；
Fig. 3 is a kind of flow chart of ultrasonic imaging method of the present invention；
Fig. 4 is a kind of specific embodiment schematic diagram of supersonic imaging device of the present invention；
Fig. 5 is a kind of specific embodiment image of supersonic imaging device of the present invention.
Reference sign：
1st, probe mechanism；2nd, image scanning mechanism；3rd, main unit mechanism；4th, pop one's head in；5th, analog signal processing device；6th, modulus
Converter；7th, control/DIU data interface unit；8th, control device；9th, digital signal processing device；10th, high-voltage driving device.
Specific embodiment
1-5 and embodiment below in conjunction with the accompanying drawings, the specific embodiment carried out to the present invention are described in further detail.
The ultrasonic imaging method is described in detail so that the transmitting of single array element, single array element receive as an example.Fig. 4 gives one and includes
The schematic diagram of the scanning probe of 15 array element, due to being that single array element is used to emit, the wave beam of transmitting is very wide, each array element
The beam angle of transmitting is as shown in the scope between two lines in figure.Scanning range is assumed to be 0~No. 14 array element, then starts scanning
Afterwards, No. 0 array element be energized transmitting ultrasonic wave enter medium, generate echo, echo after encountering scattering and reflectance target in media as well
It is received by No. 0 array element, the scanning of No. 0 array element is completed after the most deep echo of imageable target is also received, system is switched to No. 1
Array element repeats the scanning process of the transmitting and reception, is completed after the completion of the transmitting, reception scanning process until No. 14 array element
The complete image scanning of one frame.Come back to the image scanning that No. 0 array element starts a new frame.The order of the scanning can be from
No. 0 is sequentially advanced array element scanning one by one；It can also replace with from No. 14 array elements and start a frame scan, fall back array element one by one successively and sweep
It retouches；The out of order scanning of array element is can also be, as long as ensureing that each array element is at least scanned once within the scan period of a frame.
It, can be according to the position and side of the received scanline of setting after the echo of the scanning of each array element of a frame is obtained
To progress Beam synthesis.The density of received scanline can arbitrarily be set, the frame per second without influencing imaging, because one frame of scanning
Time be it is fixed, unlike in conventional imaging method scan frame per second also linearly dropped with the increase imaging frame rate of scanning density
It is low.Certainly receive that line density is too low can cause space lack sampling and sacrifice picture quality, and it is excessively high to receive line density, can increase
Computation complexity, according to practical experience, 1/2 of reception line interval equal to array element spacing or angle can obtain preferable image
Quality.Still exemplified by the scanning range in Yi Shang figure, it is assumed that a certain item receives line and is set in the center of No. 7 array element as starting point, hangs down
Directly in the straight line of detecting head surface.Receive line on citing give 5 target points, respectively with triangle, circle, rectangle,
Diamond shape and pentagon signal, are respectively labeled as a, b, c, d, e point.As seen from the figure, the beam area that a points emit in No. 7 array elements
Interior, in the beam area that b points emit in 6,7, No. 8 array elements, c points are in the beam area of 5,6,7,8,9 good array element transmittings, d points
In the beam area of 4,5,6,7,8,9, No. 10 array element transmittings, e points emit in 3,4,5,6,7,8,9,10, No. 11 array elements
In beam area.Therefore, when Beam synthesis using dynamic aperture technology launching beam scope is only selected in corresponding point
The array element of covering participates in Beam synthesis.For this new equipment if very deep position, the transmitting of all array elements can in theory
Covering can also use the transmitting of all array elements, receive echo participation Beam synthesis.But the array number participated in is more suitable
More in the port number of Beam synthesis, calculation amount also can be linearly increasing, therefore needs root to reduce computation complexity port number
The port number generally received according to the probe of the suitable numerical value of situation selection of probe, such as 128 array elements is set to 64, i.e. a wave beam
The echo of 64 array element around is at most used in synthesis.
By taking b, e point above-mentioned as an example, Oi is denoted as the center of each array element, and Si (t) is the echo of each array element
Signal, then the signal of b, e spot beam synthesis is S (tb), S (te)：
,i=6~8
,i=3~11
Wherein, D (Oi, e) is expressed as the distance of Oi to e, and C is the spread speed of sound wave in media as well, and SUM { } represents more
Signal averaging after a communication channel delay (further includes different port number signals to add up the normalization of amplitude, the amplitude in real system
Compensation technique term techniques well known, is no longer developed in details introduction).From formula, the sound wave emitted from Oi passes through D
E target points are reached after (Oi, e) distance, the echo of e target point reflections returns to i-th of array element using D (Oi, e), by the array element
It receives, therefore the delay of e echoes is 2*D (Oi, e)/C.Beam synthesis delay calculating method in conventional imaging techniques is then right
For all reception array element, the wave beam of transmitting is all assumed that be sent from No. 7 array elements, i.e., for b, e point Beam synthesis letter
Number it is：
,i=6~8
,i=3~11
The comparison of two groups of formulas it can be found that conventional imaging techniques are transmitting constant time lags focuses on, and receive can realize with
Depth dynamic focusing, and new method then realizes transmitting using the echo-signal of each array element of caching and reception is synchronous with depth
Spend dynamic focusing.So as to ensure that uniform spatial resolution, Er Qiesui are all obtained in the range of near field to far field entire depth
The increase of depth, the array number of the transmitting and reception that participate in synthesis all increases, and so as to improve signal-to-noise ratio, is also to ensure that
Image obtains preferable penetration power.The delay of Beam synthesis in above formula be to each depth of each array element it is definite in advance,
And the velocity of sound in medium is typically also fixed (velocity of sound approximation in such as human body soft tissue is fixed as 1540m/s), therefore
Delay of each passage to each depth can be calculated during realization in advance, a look-up table is created, when real time execution
Beam synthesis can quickly be realized by directly searching delay look-up table.Less preferred embodiment also may be used on the premise of requirement of real time is not high
With when Beam synthesis in real time according to each array element and treat focus point apart from computation delay value.Each array element is to waiting to focus on
The distance of point is calculated then according to the distance of array element to wave beam initial position and the depth for treating focus point using trigonometric function,
For example the calculation formula of D (O3, e) is in upper illustrated example：
D (O3, e)=sqrt (16*P*P+De*De)
Wherein P is array element spacing, and D (O3, e) is expressed as the distance of O3 to e, and sqrt represents the arithmetic operation for seeking extraction of square root.
Transmitting and reception are to share an array element in above-described embodiment, can also emit and receive without same array element,
Such as in upper figure when No. 7 array element transmittings, be close to No. 8 array elements are selected for receiving.By taking e target points as an example, then accordingly
Beam synthesis signal be expressed as：
,i=4~12
Wherein, D (Oi-1, e) is that the sound wave of i-1 array elements transmitting reaches the distance of e target points, and D (Oi, e) is e targets
The echo of point reaches the distance of i array elements.
Multiple receiving channel superpositions, since the noise of each passage is often random, and signal is relevant, therefore folded
The signal-to-noise ratio of signal can be improved after adding.Similarly, in described device, the array number that suitably can increase while receive, such as
The configuration of receiving circuit chip routine is exactly the parallel reception that a chips support 8 passages in the prior art, in the system
In can by one reception chip 8 receiving channels it is corresponding 8 reception array element echo-signal simultaneously participate in wave beam close
Into the Beam synthesis delay Equation of this 8 passages is as shown in formula above.
The wave beam of single array element transmitting is very wide, but may emitted energy is too low can not penetrate some very deep positions, therefore,
The power of transmitting can be improved by suitably increasing the array number of transmitted in parallel.Since the aperture of transmitting simultaneously is bigger, transmitted wave
Beam will be narrower, therefore should not set too greatly, such as the array number of transmitting is defined to be no more than 8 simultaneously.
As shown in figure 5, the embodiment of a single channel transmitting, single channel reception is given as a result, the Beam synthesis of maximum
Port number is configured to 64, imaging frequency 10MHz.From fig. 4, it can be seen that the target spot vertical and horizontal resolution ratio in module is all very
It is good, and the target spot of 4cm depth is also clear and legible, it is seen that the validity of this method.
The operation principle of supersonic imaging device in the present invention：
A kind of supersonic imaging device, including probe mechanism 1, image scanning mechanism 2 and main unit mechanism 3, the probe mechanism
1st, image scanning mechanism 2 and main unit mechanism 3 are sequentially connected electrically,
The probe mechanism 1 includes probe, and multiple array elements are provided in the probe；
The image scanning mechanism 2 includes high-voltage driving device 10, analog signal processing device 5, analog-to-digital conversion device 6 and control
System/DIU data interface unit 7, wherein,
The high-voltage driving device 10 is used for the emission control parameter signal that receiving host mechanism 3 transmits, the transmitting control
Signal processed can include transmitted waveform and transmitting pulse repetition period, what the transmitted waveform signal generated after high drive
High-voltage signal sends the probe mechanism 1 to,
The analog signal processing device 5 be used for the ultrasonic echo signal that will receive successively into horizontal high voltage emit every
From, amplification, filtering process, and will treated that echo-signal sends analog-to-digital conversion device 6 to,
The analog-to-digital conversion device 6 is used for treated echo-signal the is converted into digital signal, and by the number
Signal transmission to control/DIU data interface unit 7,
Control/the DIU data interface unit 7 uploads to for caching the digital signal received by data-interface
Main unit mechanism 3 is additionally operable to receive the control parameter signal that the main unit mechanism 3 is sent to the image scanning mechanism 2, described
Control parameter signal includes transmitted waveform control signal, pulse repetition period signal, and by the control parameter signal (low-voltage
Signal, general voltage are less than 5V) send the high-voltage driving device 10, after high-voltage driving device is handled, ordinary circumstance to
Lower voltage increases to more than 50V；
The main unit mechanism 3 includes control device 8 and digital signal processing device 9, wherein,
The control device 8 is used to generating the control parameter of image scanning mechanism, and by the parameter by the control/
DIU data interface unit 7 is transmitted to the image scanning mechanism 2.
The digital signal processing device 9 is electrically connected with the control/DIU data interface unit 7, including the first process part
With second processing part, first process part is used to carry out wave beam conjunction to the digital signal of the echo of not homogeneous scanning
Into the second processing part is used to carry out the signal of Beam synthesis output processing generation ultrasonoscopy, and will generation ultrasound
Image, which uploads to, exports display on display.
First process part in the digital signal processing device is mounted in the imaging scanner 2, ripple
The output signal of Shu Hecheng uploads to the main unit mechanism 3 by control/DIU data interface unit 7 again and carries out the second processing
Partial processing.
The signal of ADC acquisitions can not also directly upload host after caching and carry out the processing such as Beam synthesis, the solution of suboptimum
Certainly scheme can also increase the computational submodules such as DSP/FPGA/CPU/GPU in image scanning module, by Beam synthesis (or
Person's signal processings such as including dynamic filter) after the completion of the computational submodule host module is uploaded again, so as to mitigate the meter of host
Burden is calculated, but can additionally increase cost and power consumption.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of supersonic imaging device, which is characterized in that including probe mechanism (1), image scanning mechanism (2) and main unit mechanism
(3), the probe mechanism (1), image scanning mechanism (2) and main unit mechanism (3) are sequentially connected electrically,
The probe mechanism (1) includes probe, and multiple array elements are provided in the probe, scans what is emitted and receive every time
Array element is at least one, often completes once the scanning of all array elements in the probe, obtains the ultrasound of all array elements described in a frame
Ripple echo-signal；
The image scanning mechanism (2) includes high-voltage driving device (10), analog signal processing device (5), analog-to-digital conversion device (6)
With control/DIU data interface unit (7), wherein,
The high-voltage driving device (10) is used for the emission control parameter signal of receiving host mechanism (3) transmission, the transmitting control
Parameter signal processed includes transmitted waveform and transmitting pulse repetition period, the high pressure that the transmitted waveform generates after high drive
Signal sends the probe mechanism (1) to,
The analog signal processing device (5) be used for the ultrasonic echo signal that will receive successively into horizontal high voltage emit every
From, amplification, filtering process, and will treated that echo-signal sends analog-to-digital conversion device (6) to,
The analog-to-digital conversion device (6) is used for treated echo-signal the is converted into digital signal, and the number is believed
Number control/DIU data interface unit (7) is transferred to,
Control/the DIU data interface unit (7) uploads to master for caching the digital signal received by data-interface
Machine mechanism (3) is additionally operable to receive the emission control parameter letter that the main unit mechanism (3) is sent to the image scanning mechanism (2)
Number, and send the emission control parameter signal to the high-voltage driving device (10)；
The main unit mechanism (3) includes control device (8) and digital signal processing device (9), wherein,
The control device (8) is used to generate the control parameter of image scanning mechanism, and the parameter is passed through the control/number
The image scanning mechanism (2) is transmitted to according to interface arrangement (7)；
The digital signal processing device (9) is electrically connected with the control/DIU data interface unit (7), including the first process part
With second processing part, first process part is used to carry out wave beam conjunction to the digital signal of the echo of not homogeneous scanning
Into the second processing part is used to carry out the signal of Beam synthesis output processing generation ultrasonoscopy, and will generation ultrasound
Image, which uploads to, exports display on display,
Wherein, digital signal processing device (9) is determined according to the spatial position of transmitting array element, reception array element and received scanline
Delay parameter folds the digital signal for the echo that the not homogeneous that the control/DIU data interface unit (7) uploads scans into line delay
Add, so as to realize the Beam synthesis of transmitting and reception simultaneously, form Beam synthesis signal,
Also, the digital signal processing device (9) carries out dynamic filter, envelope detection, logarithm to the Beam synthesis signal
Compression, display digital scan translation process obtain ultrasonoscopy, and the ultrasonoscopy is output on display and is shown
Show,
To not homogeneous scanning echo digital signal into line delay be superimposed when, by directly search be delayed look-up tables'implementation it is quick
Beam synthesis.
2. a kind of supersonic imaging device according to claim 1, which is characterized in that in the digital signal processing device
First process part is mounted in the image scanning mechanism (2), and the output signal of Beam synthesis is connect by control/data
Mouth device (7) uploads to the processing that the main unit mechanism (3) carries out the second processing part.
3. the ultrasonic imaging method of a kind of supersonic imaging device according to claim 1, which is characterized in that including following step
Suddenly：
Step 1, the control parameter of imaging sweep mechanism (2) is pre-set, the control parameter signal of transmitting is filled by high drive
High-voltage signal is obtained after putting (10) processing, the high-voltage signal is sent to probe mechanism (1)；
Step 2, under the action of the high-voltage signal, probe proceeds by transmitting and receives signal, and by the ultrasonic wave of reception
Echo-signal is transferred to the image scanning mechanism (2)；
Step 3, digital signal is obtained to ultrasonic echo signal progress analog signal processing, analog-to-digital conversion, to the number
Word signal is cached and is uploaded main unit mechanism (3)；
Step 4, the digital signal of the echo scanned to the not homogeneous of upload carries out Beam synthesis and handles to obtain Beam synthesis
Signal carries out further Digital Signal Processing to the Beam synthesis signal and obtains ultrasonoscopy, and is uploaded to display,
Wherein, step 4 specifically comprises the following steps：
Step 4.1, digital signal processing device (9) is true according to the spatial position of transmitting array element, reception array element and received scanline
Fixed delay parameter prolongs the digital signal for the echo that the not homogeneous that the control/DIU data interface unit (7) uploads scans
When be superimposed, so as to realize the Beam synthesis of transmitting and reception simultaneously, form Beam synthesis signal,
Step 4.2, dynamic filter, envelope detection, log-compressed, display digital scan conversion are carried out to the Beam synthesis signal
Processing procedure obtains ultrasonoscopy, and the ultrasonoscopy is output on display and is shown.
4. a kind of ultrasonic imaging method according to claim 3, which is characterized in that step 1 specifically comprises the following steps：
Step 1.1, the control device in main unit mechanism (3) sets the image scanning mechanism according to image-forming condition set by user
(2) control parameter, the control parameter signal of the image scanning mechanism (2) are sent to by control/DIU data interface unit (7)
The image scanning mechanism (2),
Step 1.2, the high-voltage driving device in the image scanning mechanism (2), which is converted to the control parameter signal of reception, is used for
The high-voltage signal of transmitting, and the high-voltage signal is sent to the probe in probe mechanism (1).
5. a kind of ultrasonic imaging method according to claim 3, which is characterized in that in step 2, pop one's head in every time during scanning
Interior at least one array element generates ultrasonic wave and is transmitted in medium after being encouraged by high-voltage signal, the ultrasonic wave, which enters medium, to be encountered
The ultrasonic echo of scattering or reflection is generated after target, at least one array element is returned for receiving the ultrasonic wave during scanning every time
Ripple, and the ultrasonic echo signal is transferred to the image scanning mechanism (2).
6. a kind of ultrasonic imaging method according to claim 3, which is characterized in that step 3 specifically comprises the following steps：
Step 3.1, analog signal processing device (5) by the ultrasonic echo signal of reception successively into horizontal high voltage emit every
From, amplification, filtering process, and will treated that echo-signal sends analog-to-digital conversion device (6) to,
Step 3.2, the analog-to-digital conversion device (6) is by treated echo-signal the is converted into digital signal, and by the number
Word signal transmission gives control/DIU data interface unit (7),
Step 3.3, the digital signal that control/DIU data interface unit (7) caching receives, and uploaded by data-interface
To the main unit mechanism (3).
7. a kind of ultrasonic imaging method according to claim 3, which is characterized in that in step 4.1, previously according to transmitting battle array
The spatial position of member, reception array element and received scanline calculates the parameter of Beam synthesis and is stored in the control device (8)
In, the parameter that the storage is directly searched when Beam synthesis is handled folds the echo that not homogeneous scans after different delays
Adduction into.
8. a kind of ultrasonic imaging method according to claim 3, which is characterized in that in step 4.2, the Beam synthesis
Processing procedure further includes a dynamic aperture processing procedure.
9. a kind of ultrasonic imaging method according to claim 3, which is characterized in that the probe scans to emit every time
Array element and identical or different for the element position of reception.
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| CN107028620A (en) * | 2016-02-04 | 2017-08-11 | 乐普（北京）医疗器械股份有限公司 | Ultrasonic echo imaging device and its imaging method for mobile terminal |
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| CN106821418B (en) * | 2016-12-30 | 2019-10-15 | 飞依诺科技(苏州)有限公司 | A kind of method and device reducing beam synthesizer power consumption |
| CN109142904B (en) * | 2017-06-28 | 2021-09-07 | 许继集团有限公司 | Image recognition-based fault monitoring method and device for direct-current transmission converter valve |
| CN107374670A (en) * | 2017-07-20 | 2017-11-24 | 朗昇科技（苏州）有限公司 | A kind of synthetic aperture supersonic imaging device and method |
| CN110840483B (en) * | 2019-11-15 | 2022-03-18 | 徐州市凯信电子设备有限公司 | Real-time logarithmic compression method and system for digital ultrasonic diagnostic apparatus |
| CN111544038B (en) * | 2020-05-12 | 2024-02-02 | 上海深至信息科技有限公司 | Cloud platform ultrasonic imaging system |
| CN111694004B (en) * | 2020-06-10 | 2023-08-29 | 京东方科技集团股份有限公司 | Method and device for beam synthesis |
| CN112315500A (en) * | 2020-11-20 | 2021-02-05 | 深圳开立生物医疗科技股份有限公司 | Ultrasonic image generation method and device, ultrasonic diagnosis equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242978A (en) * | 1997-04-03 | 2000-02-02 | 索诺塞特公司 | Supersonic array transducer receiver for handheld supersonic diagnosis instrument |
| CN1364065A (en) * | 2000-03-08 | 2002-08-14 | Ge医疗系统环球技术有限公司 | Method of ultrasonic imaging and ultrasonic diagnostic apparatus |
| CN2724016Y (en) * | 2004-09-01 | 2005-09-07 | 崔志国 | Novel supersonic detector |
| CN101199430A (en) * | 2006-12-15 | 2008-06-18 | 深圳迈瑞生物医疗电子股份有限公司 | Spatial compound imaging method and equipment and ultrasonic imaging system thereof |
| CN104287780A (en) * | 2013-07-19 | 2015-01-21 | 三星电子株式会社 | Ultrasonic imaging apparatus and control method thereof |
-
2015
- 2015-02-13 CN CN201510080856.9A patent/CN104614728B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242978A (en) * | 1997-04-03 | 2000-02-02 | 索诺塞特公司 | Supersonic array transducer receiver for handheld supersonic diagnosis instrument |
| CN1364065A (en) * | 2000-03-08 | 2002-08-14 | Ge医疗系统环球技术有限公司 | Method of ultrasonic imaging and ultrasonic diagnostic apparatus |
| CN2724016Y (en) * | 2004-09-01 | 2005-09-07 | 崔志国 | Novel supersonic detector |
| CN101199430A (en) * | 2006-12-15 | 2008-06-18 | 深圳迈瑞生物医疗电子股份有限公司 | Spatial compound imaging method and equipment and ultrasonic imaging system thereof |
| CN104287780A (en) * | 2013-07-19 | 2015-01-21 | 三星电子株式会社 | Ultrasonic imaging apparatus and control method thereof |
Non-Patent Citations (1)
| Title |
|---|
| "超声相控阵检测关键技术的研究";程继隆;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20110615;第38-39页 * |
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