CN106441710B - The portable ultraphonic leak detector for having visualization guiding function - Google Patents
The portable ultraphonic leak detector for having visualization guiding function Download PDFInfo
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- CN106441710B CN106441710B CN201510498255.XA CN201510498255A CN106441710B CN 106441710 B CN106441710 B CN 106441710B CN 201510498255 A CN201510498255 A CN 201510498255A CN 106441710 B CN106441710 B CN 106441710B
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Abstract
The invention discloses a kind of supersonic leak detectors for having visualization guiding function, specifically include that ultrasound transducer probe array structure, power module, filtering and amplifying circuit module, DSP processing module, ARM processing module etc., shell detection front end is removably disposed linear transducer array structure, touch display screen is arranged in order to which the personnel of hunting leak observe in rear end, linear transducer array structure is the array structure that No. 8 ultrasonic sensors and high-definition camera head unit collectively constitute 3 × 3, the equal real-time display of outdoor scene and testing result detected is in liquid crystal touch display screen, leak detection personnel hunt leak in the visualization guidance of liquid crystal touch display screen.The present invention can be in the round range of R=0.5m around sensor probe, realize real time leak detection and orientation, under correct detecting step and guide for method, the accurate judgement to the above leak hole of diameter 0.5mm can be realized to comprehensive scanning and detection is carried out in spacecraft module.
Description
Technical field
The invention belongs to spacecrafts to seal leak hunting technology field, draw specifically, having visualization the present invention relates to one kind
Lead the portable contactless ultrasonic leak detection device of function.
Background technique
In recent years, with the development of acoustic detection technology, ultrasonic leak detection is in industrial spill detection field using increasingly
Extensively.Compared to other leak hunting methods, ultrasonic leak detection has the characteristics that quick, convenient.And with the enlargement of mankind's spacecraft,
Long life, on-orbit leak detection become the guarantee of spacecraft reliability and safety in orbit, it is contemplated that spacefarer is in-orbit to be used
Convenience and timeliness demand, the in-orbit leak detector used need preferable man-machine interface and operability.
Currently, external had manufacturer to produce supersonic leak detector, the LEAKSHOOTER system of French Synergys company production
Column supersonic leak detector has visualization function, but the visualization function only carries out captured in real-time, can not guide the position of instruction leak hole
It sets or direction, testing staff is still along fixation locus inspection.And the country has also started portable ultraphonic leak detector in recent years
It develops, but does not have visualization function.Therefore, the portable ultraphonic leak detection that new generation has visualization guiding function is needed
Instrument, to meet the demand of the leak detection in the fields such as space flight, especially in terms of the leak source positioning of large sealing structure, very advantageous.
Summary of the invention
The present invention provides a kind of portable ultraphonic with vision guide function with high-definition camera and colorful display screen
Leak detector, the leak detection suitable for sealing structures such as spacecraft, vacuum environment simulation facility or other pressure vessel and equipments.The present invention
It is designed using the upstream detection of vacuum equipment as standard, but is applied equally to press device leakage in actual use
Detected downstream.
The supersonic leak detector for having visualization guiding function of the invention specifically includes that the ultrasound with high-definition camera passes
Sensor linear transducer array structure, the power module with rechargeable battery set, filtering and amplifying circuit module, DSP processing module, at ARM
Module, liquid crystal touch display screen and casing are managed, power module provides power supply for each module, and casing is hand-held gun-shaped structure, interior
Power module, filtering and amplifying circuit module, DSP processing module and ARM processing module is arranged in portion, and the detection front end of gun-shaped structure can
Ultrasound transducer probe array structure is releasably set, and the rear end setting liquid crystal touch display screen of gun-shaped structure is in order to the people that hunts leak
Member is observed, wherein ultrasound transducer probe array structure is that No. 8 ultrasonic sensors and high-definition camera head unit collectively constitute
3 × 3 array structure leaks the ultrasonic signal of generation by turning after No. 8 ultrasonic sensors reception by amplification filter circuit module
Digital signal is turned to, sampling calculation processing is carried out by DSP processing module and analysis, result later is transmitted to by serial ports
In ARM processing module, and the picture that high-definition camera takes then is transferred directly to ARM processing module, outdoor scene and testing result
In liquid crystal touch display screen, leak detection personnel's equal real-time display hunt leak in the visualization guidance of liquid crystal touch display screen.
Wherein, liquid crystal touch display screen is 5.6 cun of colorful display screens.
Wherein, colorful display screen has man machine operation interface, and interface has the function of shooting, storage, deletes.
Wherein, the poly- sound cover of anti-noise is arranged in casing outer surface.
Wherein, ARM processing module electrical connection setting storage element, storage cell are SD storage card.
Wherein, sensor signal passes through level Four filtering and amplifying circuit by switching switch input signal processing circuit first
Amplify signal.
Further, level Four filtering and amplifying circuit is all made of AD620, and amplification factor reaches 6800 times or more, then will put
Signal after big is input in DSP digital processing circuit.
Further, dsp chip uses TMS320F28335, carries out Chebyshev's digital filtering and fast Fourier variation
Time-domain signal is converted frequency-region signal by FFT, and then analysis result is input on ARM display screen, passes through the operation on screen
Signal is shown.
Wherein, region is divided into 9 sub-regions, the detection zone of each display area and array ultrasonic probe on display screen
It corresponds, the leakage situation in each region of real-time display.
Wherein, colorful display screen has visualization guiding function, when the ultrasonic wave number detected reaches leak threshold, display
Screen is intermediate to will appear corresponding arrow, and instruction receives the sensor orientation of maximum ultrasonic signal, guides the above-mentioned direction of leak detection personnel
Find leak source.
Wherein, No. 8 ultrasonic sensors are mutually indepedent, and result passes through serial ports by contrast will be conveyed to ARM display module.
The present invention has the advantages that
1, the present invention can carry out the real-time display of outdoor scene to leak hole and near zone, and region is divided into 9 on a display screen
The detection zone of sub-regions, each display area and array ultrasonic probe corresponds, the leakage feelings in each region of real-time display
Condition.
3, the present invention has visualization guiding function, when the ultrasonic wave number detected reaches leak threshold, among display screen
It will appear corresponding arrow, instruction receives the sensor orientation of maximum ultrasonic signal, and guidance operator finds in the direction to this
Leak source.
4, visualization model of the invention is detachable apparatus, is replaced again after visualization model is dismantled without camera
And the ordinary ultrasonic probe of switching switch, supersonic leak detector can work according to no visualization model.
5, the present invention can be in R=0.5m circle range, realization real time leak detects and orientation, just around sensor probe
Under true detecting step and guide for method, can to comprehensive scanning and detection is carried out in spacecraft module, realize to diameter 0.5mm with
The accurate judgement of upper leak hole.
6, visualization model of the present invention is shown and is operated using touch screen, can directly be taken pictures in screen, store, check,
The operation such as deletion, parameter editor.
Detailed description of the invention
Fig. 1 is the structural block diagram of the supersonic leak detector with visualization guiding function of the invention.
Fig. 2 is the supersonic leak detector signal stream block diagram with visualization guiding function of the invention.
Fig. 3 is the ultrasound transducer probe array structure of the supersonic leak detector with visualization guiding function of the invention
Figure.
Fig. 4 is the human-computer interaction interface of touch display screen in the supersonic leak detector with visualization guiding function of the invention
Key schematic diagram.
Fig. 5 is the touch display screen shooting boundary leakage letter of the supersonic leak detector with visualization guiding function of the invention
Number instruction figure.
Specific embodiment
The supersonic leak detector with visualization guiding function of the invention is further described with reference to the accompanying drawing, it should
Explanation is only exemplary, it is no intended to be limited the scope of the invention.
The structural block diagram of the supersonic leak detector with visualization guiding function of the invention is as shown in Figure 1, it mainly includes
Array switching probe module, amplification circuit module, power module, DSP module and ARM display module, responsible pair of power module
Sensor, DSP and embedded module power supply.Wherein the power supply of sensor and DSP can only have power module offer, alternatively
Ground, the power supply of ARM can also then be powered by external 5V DC power supply.No. 8 sensors and high-definition camera collectively constitute 3 × 3 battle array
Column switches ultrasonic probe, realizes the detection to ultrasonic wave and the display to detection outdoor scene real-time photography and guidance result.This
The supersonic leak detector master with visualization guiding function of invention to be processed is ultrasonic signal, and signal stream is as shown in Fig. 2, let out
It leaks and is converted into digital signal by AD after the ultrasonic signal generated is received by the 8 roads probe of arrayed ultrasonic sensor, pass through
The sampling calculation processing of DSP and the result after analysis are transmitted on ARM by serial ports, and the picture that high-definition camera takes
Then it is transferred directly on ARM, in display screen, man machine operation interface is ARM display screen for outdoor scene and the equal real-time display of testing result,
It the functions such as can be shot, be stored, being deleted on interface.
In a specific embodiment, the array ultrasonic of the supersonic leak detector with visualization guiding function of the invention
As shown in figure 3, having 8 piezoelectric-type ultrasonic sensors, camera is placed in 8 sensors the structure chart of sensor probe
Between, the route and sensor line of camera are mutually indepedent.8 ultrasonic sensors are touched by 8 tunnels switching switch by DSP timing
Hair, switch speed are better than 200ms, realize that sensor signal single channel timesharing after switch control is passed to high-precision AD and then by DSP
Subsequent processing is carried out, realizes that 8 tunnels are mutually indepedent, result passes through serial ports by contrast will be conveyed to ARM display module, every to tie all the way
Fruit corresponds to a region on screen and video signal transmission that camera receives gives ARM display module.
In another specific embodiment, sensor signal is logical first by switching switch input signal processing circuit
Crossing level Four filtering and amplifying circuit amplifies signal, and level Four amplification chip is all made of AD620, and amplification factor reaches 6800 times or more,
Then the signal after amplification is input in DSP digital processing circuit, dsp chip uses TMS320F28335, carries out cutting ratio
It avenges husband's digital filtering and fast Fourier changes FFT, convert frequency-region signal for time-domain signal, be then input to analysis result
On ARM display screen, signal is shown by the operation on screen.
High-definition camera connects ARM embeded processor by signal wire, shoots in 5.6 cun of display screen display cameras
Picture.Shooting display picture is as shown in figure 4, display screen is touch screen control.Start picture is homepage, and homepage shows Shenzhou word
Sample, lower section are arranged three shooting, picture, setting touch screen keys, are respectively directed to camera shooting picture, shoot image, Yi Jixiang
Close three interfaces of parameter setting.It touching " shooting " key and enters camera shooting picture later, shooting picture frame number is 24 frames/s,
At shooting interface, also there are three touch buttons, are to return respectively, shooting, and check picture, return to key and are directed toward homepage, shooting
It is the screen printed image for shooting camera and storage, and clicks and check that picture then enters picture interface, image will have been shot
According to the matrix arrangement of 3*4, it may be selected to check corresponding picture and carry out delete operation.After clicking delete button, interface bullet
Deletion dialog box whether is confirmed out, could execute delete operation after verification.
Under screening-mode, as shown in figure 5, screen can be changed with the signal for the ultrasonic probe that DSP is received.It will
Screen is divided into 3 × 39 regions, and in addition to central area, other regions are corresponding with 8 sensors shown in Fig. 3.Eight
Sensor number distinguishes 0-7, and received numerical value is respectively S0 to S7, is switched by switching and realizes single channel timesharing detection,
The signal received every time is corresponded with sensor number and corresponding display screen area, through DSP number after AD is acquired
According to being handled in processing mould, obtains corresponding alarm lamp green light, amber light and blinking red lamp or the result being always on is transmitted on ARM,
ARM shows the arrow of corresponding color in center Screen, as shown in figure 4, the color of arrow and flashing mode and DSP processing result phase
Together, level of signal is divided into: amber light flashing, amber light is always on, blinking red lamp, red light are always on four grades.In the same of screen brush screen
Eight numerical value of Shi Jinhang S0 to S7 compare operation, the received maximum value direction of the direction orientation sensor of arrow, and corresponding side
Block is marked with corresponding color.When level of signal is common, maximum value direction is shown as green, when level of signal is amber light flashing or Huang
When lamp is always on, corresponding frame is yellow, if level of signal is that blinking red lamp or red light are always on, corresponding frame is red, arrow
Also corresponding color and flicker frequency are corresponded to.
Although the detailed description and description of the specific embodiments of the present invention are given above, it should be noted that
We can carry out various equivalent changes and modification to above embodiment according to the concept of the present invention, and generated function is made
It, should all be within protection scope of the present invention when with the spirit still covered without departing from specification and attached drawing.
Claims (8)
1. having the supersonic leak detector of visualization guiding function, the ultrasound transducer probe battle array with high-definition camera is specifically included that
Array structure, the power module with rechargeable battery set, filtering and amplifying circuit module, DSP processing module, ARM processing module, liquid crystal
Touch display screen and casing, power module provide power supply for each module, and casing is hand-held gun-shaped structure, inside setting power supply mould
Block, filtering and amplifying circuit module, DSP processing module and ARM processing module, the detection front end of gun-shaped structure are removably disposed super
The rear end setting liquid crystal touch display screen of sonic transducer linear transducer array structure, gun-shaped structure is observed in order to the personnel of hunting leak,
Wherein, ultrasound transducer probe array structure is the array that No. 8 ultrasonic sensors and high-definition camera head unit collectively constitute 3 × 3
Structure leaks the ultrasonic signal of generation by being converted into digital letter by amplifying filter circuit module after No. 8 ultrasonic sensors reception
Number, sampling calculation processing is carried out by DSP processing module and analysis, result later are transmitted to ARM processing module by serial ports
On, and the picture that high-definition camera takes then is transferred directly to ARM processing module, outdoor scene and the equal real-time display of testing result exist
In liquid crystal touch display screen, leak detection personnel hunt leak in the visualization guidance of liquid crystal touch display screen, and sensor signal passes through
Switching switch input signal processing circuit, amplifies signal by level Four filtering and amplifying circuit first, level Four filtering and amplifying circuit
It is all made of AD620, amplification factor reaches 6800 times or more, and the signal after amplification is then input to DSP digital processing circuit
In, DSP digital processing circuit carries out Chebyshev's digital filtering and fast Fourier changes FFT, converts frequency for time-domain signal
Then analysis result is input to ARM processing module, is shown signal by the operation on screen, wherein liquid by domain signal
Brilliant touch display screen has visualization guiding function, and when the ultrasonic wave number detected reaches leak threshold, display screen centre can go out
Now corresponding arrow, instruction receive the sensor orientation of maximum ultrasonic signal, guide the above-mentioned direction finding leak source of leak detection personnel.
2. having the supersonic leak detector of visualization guiding function as described in claim 1, wherein liquid crystal touch display screen is
5.6 cun of colorful display screens.
3. having the supersonic leak detector of visualization guiding function as claimed in claim 2, wherein liquid crystal touch display screen has
Man machine operation interface, interface have the function of shooting, storage, delete.
4. having the supersonic leak detector of visualization guiding function as described in claim 1, wherein anti-noise is arranged in casing outer surface
Poly- sound cover.
5. having the supersonic leak detector of visualization guiding function as described in claim 1, wherein the electrical connection of ARM processing module
Storage element is set, and storage unit is SD storage card.
6. having the supersonic leak detector of visualization guiding function as described in claim 1, wherein DSP digital processing circuit
Dsp chip uses TMS320F28335.
7. the supersonic leak detector as claimed in any one of claims 1 to 6 for having visualization guiding function, wherein LCD touch is aobvious
Region is divided into 9 sub-regions in display screen, the detection zone one-to-one correspondence of each display area and array ultrasonic probe is aobvious in real time
Show the leakage situation in each region.
8. the supersonic leak detector as claimed in any one of claims 1 to 6 for having visualization guiding function, wherein 8 tunnel ultrasounds pass
Sensor is mutually indepedent, and result passes through serial ports by contrast will be conveyed to ARM processing module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510498255.XA CN106441710B (en) | 2015-08-13 | 2015-08-13 | The portable ultraphonic leak detector for having visualization guiding function |
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| CN201510498255.XA CN106441710B (en) | 2015-08-13 | 2015-08-13 | The portable ultraphonic leak detector for having visualization guiding function |
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| CN106441710A CN106441710A (en) | 2017-02-22 |
| CN106441710B true CN106441710B (en) | 2019-05-14 |
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| CN107966310B (en) * | 2017-11-21 | 2019-11-08 | 北京卫星环境工程研究所 | Space capsule body pressure maintains system automatically |
Citations (4)
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|---|---|---|---|---|
| WO2002066950A1 (en) * | 2001-02-20 | 2002-08-29 | Tlv Co., Ltd. | Portable leak detector |
| CN201974410U (en) * | 2011-02-28 | 2011-09-14 | 窦艺成 | Ultrasonic-wave and digital-camera combined-type flaw detector |
| CN102901772A (en) * | 2012-06-12 | 2013-01-30 | 过宾 | Robot for intelligent tracking ultrasonic detection of welding line, and software analysis system therefor |
| FR2981151B1 (en) * | 2011-10-11 | 2013-10-25 | Synergys Technologies | PORTABLE DEVICE FOR DETECTING LEAKS |
-
2015
- 2015-08-13 CN CN201510498255.XA patent/CN106441710B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002066950A1 (en) * | 2001-02-20 | 2002-08-29 | Tlv Co., Ltd. | Portable leak detector |
| CN201974410U (en) * | 2011-02-28 | 2011-09-14 | 窦艺成 | Ultrasonic-wave and digital-camera combined-type flaw detector |
| FR2981151B1 (en) * | 2011-10-11 | 2013-10-25 | Synergys Technologies | PORTABLE DEVICE FOR DETECTING LEAKS |
| CN102901772A (en) * | 2012-06-12 | 2013-01-30 | 过宾 | Robot for intelligent tracking ultrasonic detection of welding line, and software analysis system therefor |
Non-Patent Citations (1)
| Title |
|---|
| 便携式舱内超声检漏仪的研制;闫荣鑫;《中国空间科学技术》;20150630;58-65 |
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