CN206526065U - A kind of ultrasonic sclerotin diagnostic system of the back scattering based on Android platform - Google Patents
A kind of ultrasonic sclerotin diagnostic system of the back scattering based on Android platform Download PDFInfo
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- CN206526065U CN206526065U CN201621041537.3U CN201621041537U CN206526065U CN 206526065 U CN206526065 U CN 206526065U CN 201621041537 U CN201621041537 U CN 201621041537U CN 206526065 U CN206526065 U CN 206526065U
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Abstract
The utility model belongs to Medical Instruments technical field, specially a kind of ultrasonic sclerotin diagnostic system of the back scattering based on Android platform.The system is made up of hardware layer, driving layer, android system layer and application layer；Bottom hardware uses the framework of ARM+FPGA+ analog circuits, and android system is run on arm processor, by driving layer to be controlled the hardware of bottom；Application layer is run on android system, and each for realizing the ultrasonic sclerotin diagnosis of back scattering is flowed and functionality；Application layer includes ultrasonic measurement module, parameter setting module, human-computer interaction module, algorithm processing module and database access module.Wherein algorithm processing module calculates the parameters such as the backscattering coefficient for obtaining backscatter signal, apparent integration backscattering coefficient, the skew of back scattering spectral centroid by signal processing algorithm, and these comprehensive parameters are evaluated sclerotin；Realize that multi-task scheduling is handled by Android operation system, so as to ensure the reliability and real-time response performance of system.
Description
Technical field
The utility model belongs to Medical Instruments technical field, and in particular to a kind of sclerotin diagnosis system based on MEASUREMENT OF ULTRASONIC BACKSCATTERING
System.
Background technology
Now widely used sclerotin diagnostic means are mainly based upon X-ray technology, including dual-energy x-ray (DXA) and fixed
Measure the technologies such as CT.However, radioactivity bone density measurement technology has ionising radiation to human body, and instrument and equipment is huge, and price is high
It is high.Ultrasonic method because it is lossless, without ionising radiation, inexpensive and portable etc. advantage, be considered as the great application in terms of sclerotin evaluation
Prospect.
Ultrasonic sclerotin diagnostic method is broadly divided into Ultrasonic logging method and back dispersion method.Ultrasonic logging method development is more early, at present
Clinical practice is obtained.Ultrasonic logging method is general by measuring ultrasound transmission velocity（SOS）And broadband ultrasonic attenuation（BUA）Deng
Bone conditions are evaluated by parameter.But the micro-structural situation of the less reflection bone of Ultrasonic logging method；It is only capable of in human body root bone
Place is measured, it is impossible to which the bone at other positions is measured；And need a hair one to receive two ultrasonic transducers, improve
The cost and complexity of system.
The research of MEASUREMENT OF ULTRASONIC BACKSCATTERING method is significantly developed in recent years.Research shows that the related of MEASUREMENT OF ULTRASONIC BACKSCATTERING method is joined
Amount can reflect that bone amount is lost in situation and bone micro-structure information.Using back dispersion method, it is only necessary to using a transducer, and can
To measure multiple skeletal sites of human body.Therefore, MEASUREMENT OF ULTRASONIC BACKSCATTERING method has huge potentiality in sclerotin diagnostic field.It presently, there are
Sclerotin diagnostic instrments be all based on Ultrasonic logging method, not yet have the sclerotin diagnostic instrments based on MEASUREMENT OF ULTRASONIC BACKSCATTERING method.
The content of the invention
The purpose of this utility model is to design a kind of ultrasonic sclerotin diagnostic system of back scattering based on Android platform, passed through
The program of application layer controls the work of bottom hardware, accurately controls the collection of Ultrasonic Diagnosis flow and signal.
The utility model proposes the ultrasonic sclerotin diagnostic system of back scattering based on Android platform only need to use single ultrasound
The a variety of skeletal sites of human body can be diagnosed by transducer.
The utility model proposes the ultrasonic sclerotin diagnostic system of back scattering based on Android platform, from whole system,
System is constituted by four layers：Hardware layer, driving layer, android system layer and application layer.Wherein：
Hardware layer is as bottom, using the framework of ARM+FPGA+ analog circuits.Hardware layer includes：Arm processor, LCD show
Show that device, fpga chip, high-voltage pulse radiating circuit, high_voltage isolation are received and analog to digital conversion circuit, ultrasonic transducer.ARM processing
Communicated between device and FPGA by high-speed bus, FPGA controls the work of analog circuit by universal serial bus and I/O port
Make；Android system is run on arm processor, by driving layer to be controlled the hardware of bottom；Application layer is run on
On android system, each for realizing the ultrasonic sclerotin diagnosis of back scattering is flowed and functionality.
In the hardware layer, control command is handed down to fpga chip, fpga chip parsing by arm processor by the bus
After control command, produce corresponding control sequential to control high-voltage pulse radiating circuit to send the pumping signal of ultrasonic transducer；
Fpga chip（13）Produce control sequential to control high_voltage isolation to receive and analog to digital conversion circuit, ultrasonic transducer is received
Signal carries out analog-to-digital conversion, and the signal being converted to is uploaded into arm processor by high-speed bus.
In the hardware layer, using single ultrasonic transducer, the transmitting and reception of ultrasonic signal are realized.Ultrasonic transducer by
To the driving of high-voltage pulse radiating circuit, launch ultrasonic wave.Ultrasonic wave penetrates the ultrasonic coupling agent being applied on bone sample and reached
Bone sample to be measured, and occur back scattering in bone sample.Backscatter signal penetrates ultrasonic coupling agent and returns to ultrasonic transducer, quilt
Ultrasonic transducer is received and converted to electric signal.High_voltage isolation is received and analog to digital conversion circuit can isolate higher than threshold voltage
Signal, so as to avoid reception signal from being disturbed by the high-voltage signal launched.
In the utility model, the main functional modules of application layer include ultrasonic measurement module, parameter setting module, man-machine friendship
Mutual module, algorithm processing module and database access module.Application layer is run on Android operation system layer, is passed through
Android operation system realizes that multi-task scheduling is handled, so as to ensure the reliability and real-time response performance of system.
In the application layer, ultrasonic measurement module calls the driver under Android to control ARM processing in hardware layer
Device, arm processor is communicated with fpga chip by high-speed bus, and remaining circuit module is controlled by fpga chip.From
And the transmitting of bottom ultrasonic signal and the collection of backscatter signal are controlled by application layer software.
In the application layer, parameter setting module calls the driver under Android, and the parameter of setting is passed through into ARM
The high-speed bus of processor is sent to fpga chip, then by fpga chip according to deposit inside the corresponding FPGA of these parameter configurations
The corresponding registers of device or external analog circuitry chips.These parameters include emission signal frequency, emission mode, amplifier and increased
The parameters such as benefit, transmission sequence, transmission interval.
In the application layer, algorithm processing module calculates the back scattering system for obtaining backscatter signal using signal processing algorithm
Number（BSC）, apparent integration backscattering coefficient（AIB）, back scattering spectral centroid skew（SCS）Etc. parameter, and integrate these parameters
Sclerotin is evaluated.
In the application layer, the results such as the waveform collected and algorithm process are output to man-machine interaction by human-computer interaction module
On interface, show on an lcd display, and provide touch-screen input with user-friendly.The exhibition of waveform is provided on interface
The function such as show, scale, marking.
In the application layer, database access module using database maintenance user data there is provided the typing of user profile,
The functions such as storage, retrieval and export.
The utility model is only needed to use single ultrasonic transducer, and a variety of skeletal sites of human body can be measured.Tool
There is integration and miniaturization.Bottom hardware is controlled by upper layer software (applications), had the advantages that flexible and configurable.
Brief description of the drawings
Fig. 1 is the structure chart of the ultrasonic sclerotin diagnostic system of the back scattering of the present utility model based on Android platform.
Fig. 2 is the structure chart of hardware layer in the utility model.
Fig. 3 is the structure chart of application layer in the utility model.
Fig. 4 is the use flow chart of the ultrasonic sclerotin diagnostic system of the back scattering of the present utility model based on Android platform.
Label in figure：1. hardware layer, 2. driving layers, 3.Android system layers, 4. application layers；11.ARM processors,
12.LCD displays, 13.FPGA chips, 14. high-voltage pulse radiating circuits, 15. high_voltage isolations are received and analog to digital conversion circuit,
16. ultrasonic transducer, 17. ultrasonic coupling agents, 18. bone samples；41. ultrasonic measurement module, 42. parameter setting modules, 43. algorithms
Processing module, 44. human-computer interaction modules, 45. database access modules.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, the ultrasonic sclerotin diagnostic system of the back scattering based on Android platform of the present utility model includes：Hardware layer
1st, driving layer, android system layer 3, application layer 4.
Hardware layer 1 is located at the bottom, and its module frame chart is as shown in Figure 2.Including arm processor 11, LCD display 12,
Fpga chip 13, high-voltage pulse radiating circuit 14, high_voltage isolation are received and analog to digital conversion circuit 15, ultrasonic transducer 16.At this
Communicated in embodiment between arm processor 11 and fpga chip 13 by spi bus, it would however also be possible to employ other high speeds are simultaneously
Row bus or universal serial bus.Arm processor 11 connects 10 inches of LCD display 12 by video bus.Fpga chip 13 leads to
Cross I/O port to control the transmitted waveform of high-voltage pulse radiating circuit 14, and configure by spi bus the parameter of the module.FPGA
Chip 13 controls high_voltage isolation to receive the parameters such as gain amplifier, filtering bandwidth with analog to digital conversion circuit 15 by I/O port, and
The backscatter signal that sampling is obtained is read from analog-digital converter by LVDS high-speed serial bus.In the present embodiment, ARM processing
Device 11 uses the Spartan family chips of Xinlinx companies using the chip with ARM11 kernels, fpga chip.
Android system layer 3 is run on arm processor 11, by driving 2 pairs of hardware layer 1 of layer to be controlled.Run on
Application layer 4 on android system layer 3, each for realizing the ultrasonic sclerotin diagnosis of back scattering is flowed and functionality.The present embodiment
In, using Android4.4.2 version.Be related to the driver of bottom hardware mainly include SPI drivers, GPIO mouthfuls
The driver of driver and LCD display.
The main functional modules of application layer 4 include ultrasonic measurement module 41, parameter setting module 42, algorithm processing module
43rd, human-computer interaction module 44 and database access module 45.
Ultrasonic measurement module 41 is the process control module of back scattering sclerotin diagnosis.It calls lower floor's driver to control
The SPI interface of arm processor 11, GPIO mouthfuls and LCD display interfaces, so that the accurately transmitting of control ultrasonic signal and back scattering letter
Number collection.
Parameter setting module 42 controls the SPI interface of arm processor to be configured toward fpga chip 13 by lower floor's driver
Parameter, these parameters include ultrasound emission frequency, transmission interval, coded format, recurrence interval, reception amplifier gain, filtering
Device bandwidth, sample rate etc..Fpga chip 13 can configure its internal corresponding registers and external analog electricity after receiving parameter
The corresponding registers of road chips.
43 pairs of algorithm processing module obtained backscatter signal of sampling is handled, and is filtered first, the signal such as denoising
Pretreatment, then intercepts area-of-interest, judges to whether there is effective backscatter signal in the area-of-interest, finally to sense
Backscatter signal in interest region carries out time frequency analysis and calculates the backscatter parameters of correlation.These backscatter parameters include：
Backscattering coefficient（BSC）, apparent integration backscattering coefficient（AIB）, back scattering spectral centroid skew（SCS）Etc..Algorithm process
Module 43 can integrate these calculating parameters and provide sclerotin evaluation result.
Human-computer interaction module 44 provides the user touch-screen input, and provides interactive interface, is shown in LCD display 12
On.Diagnostic result is shown on interactive interface, and the functions such as display, scaling, the mark of waveform are provided.
In the present embodiment, database access module 45 safeguards user data using MYSQL database, and there is provided user profile
The functions such as typing, storage, retrieval and export.
The use flow of the ultrasonic sclerotin diagnostic system of back scattering based on Android platform of the present utility model is as shown in Figure 4.
First, user is by the information of touch-screen typing patient, or found by name searching and have archive in database
Patient information.Then the relevant parameter of ultrasound detection, including emission signal frequency, reception amplifier gain are configured on interface
Etc. parameter.Then at the position to be measured of patient body（Such as root bone）Appropriate ultrasonic coupling agent 17 is spread, by ultrasonic transducer
16 are close to detected part.Start detection, ultrasonic transducer 16 sends pulsed ultrasonic wave and receives back scattered super by bone
Acoustical signal.Fpga chip 13 can start the collection for receiving signal immediately after ultrasound emission, and by the backscatter signal collected
It is sent to arm processor 11.The algorithm processing module 43 of application layer 4 can carry out algorithm process to backscatter signal.What is obtained examines
Disconnected result can be shown by human-computer interaction module 44.Finally diagnostic result is stored in database.
In the present embodiment, the ultrasonic signal frequencies of transmitting excitation can be matched somebody with somebody according to the centre frequency of ultrasonic transducer 16
Put.The ultrasonic conducting couplant that ultrasonic coupling agent 17 is generally used using medical ultrasonic.
Claims (3)
1. the ultrasonic sclerotin diagnostic system of the back scattering based on Android platform, it is characterised in that constituted by four layers：Hardware layer, driving
Layer, android system layer and application layer；Wherein, hardware layer is as bottom, using ARM, FPGA and the framework of analog circuit, bag
Include：Arm processor, LCD display, fpga chip, high-voltage pulse radiating circuit, high_voltage isolation reception and analog to digital conversion circuit,
Ultrasonic transducer；Communicated between arm processor and fpga chip by high-speed bus, fpga chip by universal serial bus with
And I/O port controls the work of analog circuit；Android system is run on arm processor, by driving layer to bottom
Hardware is controlled；Application layer is run on android system, realizes each flow and work(of the ultrasonic sclerotin diagnosis of back scattering
Energy.
2. the ultrasonic sclerotin diagnostic system of the back scattering based on Android platform according to claim 1, it is characterised in that described
In hardware layer, control command is handed down to after fpga chip, fpga chip parsing control command by arm processor by the bus,
Corresponding control sequential is produced to control high-voltage pulse radiating circuit to send the pumping signal of ultrasonic transducer；Fpga chip is produced
Control sequential controls high_voltage isolation to receive and analog to digital conversion circuit, and the signal that is received to ultrasonic transducer carries out modulus and turn
Change, and the signal being converted to is uploaded to arm processor by high-speed bus.
3. the ultrasonic sclerotin diagnostic system of the back scattering based on Android platform according to claim 2, it is characterised in that described
In hardware layer, ultrasonic transducer is driven by high-voltage pulse radiating circuit, launches ultrasonic wave；Ultrasonic wave, which is penetrated, is applied to bone sample
Ultrasonic coupling agent in sheet reaches bone sample to be measured, and occurs back scattering in bone sample；Backscatter signal penetrates ultrasonic coupling
Mixture returns to ultrasonic transducer, and electric signal is received and converted to by ultrasonic transducer；High_voltage isolation is received and analog to digital conversion circuit
Isolation is higher than the signal of threshold voltage, so as to avoid reception signal from being disturbed by the high-voltage signal launched.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264616A (en) * | 2016-09-07 | 2017-01-04 | 复旦大学 | A kind of ultrasonic sclerotin diagnostic system of back scattering based on Android platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106264616A (en) * | 2016-09-07 | 2017-01-04 | 复旦大学 | A kind of ultrasonic sclerotin diagnostic system of back scattering based on Android platform |
| CN106264616B (en) * | 2016-09-07 | 2023-09-01 | 复旦大学 | Back scattering ultrasonic bone diagnosis system based on android platform |
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