CN107728223A - A kind of steel rope core conveying belt joint twitches online test method - Google Patents
A kind of steel rope core conveying belt joint twitches online test method Download PDFInfo
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- CN107728223A CN107728223A CN201710820654.2A CN201710820654A CN107728223A CN 107728223 A CN107728223 A CN 107728223A CN 201710820654 A CN201710820654 A CN 201710820654A CN 107728223 A CN107728223 A CN 107728223A
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- terahertz
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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Abstract
A kind of steel rope core conveying belt joint twitches Terahertz detecting line sensor and its application method, belong to online monitoring technical field of conveyor belts in coal mine enterprises, it is characterized in that using Terahertz can be rapidly to object slight change make analysis and differentiate, and the resolution ratio and the depth of field of the detection image compared with the imaging technique of other wave bands obtained by THz imaging technology are remarkably reinforced, and the features such as not injured to human body, THz imaging technology and CCD camera image detecting technique are combined to the method for completing that on-line checking is twitched to steel rope core conveying belt joint.Such design realizes that the joint of the height real time implementation for steel rope core conveying belt twitches early warning using a small amount of hardware device, the buying of equipment and operation cost can be not only controlled in the range of enterprise's acceptable, meanwhile it also ensure that image analysis system can be controlled to less than 10% the False Rate of steel rope core conveying belt joint twitch state.
Description
Technical field
A kind of steel rope core conveying belt joint of the present invention twitches online test method, belongs to coal mining enterprise's conveyer belt on-line checking
Technical field, strong penetrability is had according to Terahertz and can be rapidly to institute's detection object slight change make analysis and mirror
The features such as other, using THz imaging technology, and combine CCD camera image detecting technique and complete for steel rope core conveying belt joint
The detection of twitch situation.
Background technology
Steel rope core conveying belt is to be widely used in colliery, metallurgical, the larger transport devices of the department such as harbour and electric power, is had
The features such as transport power is big, and transportation range is long.The steel rope core conveying belt of long range has many vulcanized joints, difficult in production application
Strength of joint value when being dispatched from the factory with long-term holding, so conveying band joint is most weak as whole piece steel rope core conveying belt tensile property
Link.From the point of view of steel rope core conveying belt fracture accident in existing coal enterprise, it is most of be all due to joint twitch not by and
Shi Faxian and caused by, therefore, develop and update a kind of new steel rope core conveying belt joint and twitch detecting line sensor, it is right
Broken belt accident is avoided to have important display meaning.Investigated by producing, current most of coal enterprise are right
Steel rope core conveying belt joint, which twitch when checking, all uses visual method, to coating rubber surface shape at conveying band joint
Change：Whether have " foaming " or " scuffing ", no matter micro-judgment its whether twitch, but this method can not be in real time to steel cable
Core conveying belt joint is twitched situation and detected, and needs substantial amounts of manpower, and operating efficiency is low, therefore, develops and updates
A kind of new steel rope core conveying belt joint twitches detecting line sensor, to avoiding the generation of broken belt accident and liberating the productive forces
There is important realistic meaning.
The content of the invention
A kind of steel rope core conveying belt joint of the present invention twitches online test method, and its object is to be the current steel cable of solution
The problem of core conveying belt joint twitches poor real present in detection method, efficiency is low, hardware requirement is high, so as to open a kind of
Sensor is combined completion to steel using Terahertz as sensitive source, using THz imaging technology and CCD camera image detecting technique
The method that wire rope core conveying band joint twitches detection.Because Terahertz can be rapidly to object slight change make analysis and differentiate,
And the resolution ratio and the depth of field of the detection image compared with the imaging technique of other wave bands obtained by THz imaging technology have
It is remarkably reinforced, and human body is not injured.
A kind of steel rope core conveying belt joint of the present invention twitches online test method, and specific detecting step is：
1）Device is by THz source 1, CCD camera 2, steel rope core conveying belt 3, signal transmission system 4, image used by this method
Analysis system 5, anti-explosion safety system 6 and alarm and conveyer belt control system 7 form；The THz source 1 and CCD camera 2, point
Not Wei Yu conveyer belt to be measured both sides and on the same line, CCD camera 2 is located on the downside of conveyer belt to be measured, and THz source 1 is located at
On the upside of conveyer belt to be measured, CCD camera be located inside anti-explosion safety system 6, and anti-explosion safety system 6 is located at conveyer belt lower section, and too
Hertz source 1 is located at same straight line, and described signal transmission system 4 is connected with anti-explosion safety system 6, described graphical analysis system
System 5 is connected with signal transmission system 4, and described alarm is connected with conveyer belt control system 7 with image analysis system 5；It is right
Described steel rope core conveying belt 3, the outside in the region of steel rope core joint to be measured do not apply any metallic paint, and remaining part applies
Spray and reflect Terahertz extremely strong metallic film；The model that described CCD camera 2 uses is MindVision MV-
GE1000M-T;Signal transmission system 4 is to be connected by the USB interface that CCD camera 2 carries with image analysis system 5；Image
Analysis system 5 includes computer hardware and program software；The model that anti-explosion safety system 6 uses is KH-3000；Alarm and conveying
The model used with control system 7 is the S7-300 of Siemens；
2）The Terahertz ray that described Terahertz light source 1 is launched is covered in the middle section of steel rope core conveying belt 3, the area surface
Product is more than or equal to the area of joint, and when joint is in the region, Terahertz passes through the joint of steel rope core conveying belt 3, defeated
The rubber layer for sending the outside of band is transparent to terahertz electromagnetic radiation, and the steel rope core inside conveyer belt has to Terahertz ray
Strong reflection characteristic, this cause by the joint for the steel rope core conveying belt 3 that Terahertz ray covers be not steel rope core part it is saturating
CCD camera 2 is emitted back towards, the Terahertz ray that CCD camera 2 captures sufficient intensity produces clearly Terahertz image, if now steel
Wire rope core conveying band joint is twitched, and the Terahertz ray increase being transmitted in the region of Terahertz ray covering, is reflected
Terahertz ray reduce, the Terahertz ray transmitted through conveyer belt can be received by CCD camera 2, and be reflected by steel rope core
Terahertz ray can not be received by CCD camera, the part of steel rope core shows as black in the image after CCD camera is imaged
Shade, so the Terahertz intensity that CCD camera 2 is received can also accordingly increase.Image caused by CCD camera 2 passes through
Signal transmission system 4 is transferred to image analysis system 5, and the Terahertz for judging that CCD camera 2 is shot is analyzed by image analysis system 5
Whether the joint of steel rope core conveying belt 3 in image is twitched, once image analysis system 5 judges that feature occurs, will be incited somebody to action
Danger signal passes to alarm and conveyer belt control system 7, then sends police to related personnel by alarm and conveyer belt control system 7
Report, and control conveyer to enter deceleration or stopped status, realize that steel rope core conveying belt joint twitches detection and early warning.
A kind of steel rope core conveying belt joint of the present invention twitches online test method, the advantage is that：1. use THz source 1
Complete the generation of Terahertz and transmitting, CCD camera 2 complete the reception of Terahertz, what the THz source 1 that this method uses was sent
Terahertz ray can cover the area in steel rope core conveying belt joint region to be detected, and Terahertz transmission of radiation crosses steel rope core
Conveyer belt 3 is received by CCD camera 2, and Terahertz ray is imaged in CCD camera 2 by the steel rope core metallic reflection in conveyer belt
It is ghost form to cash afterwards, and so as to draw out the condition diagram of steel rope core conveying belt joint twitch, such design can utilize one
The hardware devices such as individual common CCD camera 2, THz source 1 realize that the real-time monitoring for the twitch of steel rope core conveying belt joint is pre-
It is alert.
2. using THz imaging technology and the completion of CCD camera image detecting technique is combined for steel rope core conveying belt joint
The detection of twitch situation.Make there can be preferable imaging capability in this way, compared with the imaging technique of other wave bands, gained
To detection image resolution ratio and the depth of field have obvious enhancing；Terahertz light spectral technology signal to noise ratio is high, can be rapidly to thing
The slight change of body is made analysis and differentiated；THz imaging technology carries out functional imaging to material group, can obtain thing
Index distribution inside matter, and human body is not injured；Absorption of many nonmetallic non-polar materials to Terahertz ray
Smaller, it is transparent to terahertz electromagnetic radiation；The penetrability of Terahertz ray and the strong reflection characteristic to metal, and too
The high-frequency characteristic of hertz make it that the resolution ratio of imaging is higher.
Brief description of the drawings
Fig. 1 twitches online test method schematic front view for a kind of steel rope core conveying belt joint of the present invention.
Fig. 2 twitches the online test method right side for a kind of steel rope core conveying belt joint of the present invention and regards schematic diagram.
Fig. 3 twitches online test method structured flowchart for a kind of steel rope core conveying belt joint of the present invention.
1st, THz source
2nd, CCD camera
3rd, steel rope core conveying belt
4th, signal transmission system
5th, image analysis system
6th, anti-explosion safety system
7th, alarm and conveyer belt control system.
Embodiment
Make as detailed below below in conjunction with implementation of the accompanying drawing to the present invention：
Embodiment 1
A kind of sensor using Terahertz as sensitive source, using Terahertz can rapidly to object slight change make analysis and differentiate,
THz imaging technology Billy is remarkably reinforced with the resolution ratio and the depth of field of the detection image obtained by other technologies and not had to human body
There is the characteristics of injury, THz imaging technology and CCD camera image detecting technique are combined into completion connects to steel rope core conveying belt
The method that head twitches detection, specific detecting step are：
1）Device is by THz source 1, CCD camera 2, steel rope core conveying belt 3, signal transmission system 4, image used by this method
Analysis system 5, anti-explosion safety system 6 and alarm and conveyer belt control system 7 form；The THz source 1 and CCD camera 2, point
Not Wei Yu conveyer belt to be measured both sides and on the same line, CCD camera 2 is located on the downside of conveyer belt to be measured, and THz source 1 is located at
On the upside of conveyer belt to be measured, CCD camera 2 be located inside anti-explosion safety system 6, and anti-explosion safety system 6 is located at conveyer belt lower section, and too
Hertz source 1 is located at same straight line, and described signal transmission system 4 is connected with anti-explosion safety system 6, described graphical analysis system
System 5 is connected with signal transmission system 4, and described alarm is connected with conveyer belt control system 7 with image analysis system 5；It is right
Described steel rope core conveying belt 3, the outside in the region of steel rope core joint to be measured do not apply any metallic paint, and remaining part applies
Spray and reflect Terahertz extremely strong metallic film, the model that described CCD camera 2 uses is MindVision MV-
GE1000M-T;Signal transmission system 4 is to be connected by the USB interface that CCD camera 2 carries with image analysis system 5；Image
Analysis system 5 includes computer hardware and program software；The model that anti-explosion safety system 6 uses is KH-3000；Alarm and conveying
The model used with control system 7 is the S7-300 of Siemens；
2）The Terahertz ray that described Terahertz light source 1 is launched is covered in the middle section of steel rope core conveying belt 3, the area surface
Product is more than or equal to the area of joint, and when joint is in the region, Terahertz passes through the joint of steel rope core conveying belt 3, defeated
The rubber layer for sending the outside of band is transparent to terahertz electromagnetic radiation, and the steel rope core inside conveyer belt has to Terahertz ray
Strong reflection characteristic, this cause by the joint for the steel rope core conveying belt 3 that Terahertz ray covers be not steel rope core part it is saturating
CCD camera 2 is emitted back towards, the Terahertz ray that CCD camera 2 captures sufficient intensity produces clearly Terahertz image, if now steel
The joint of wire rope core conveyer belt 3 is twitched, and the Terahertz ray increase being transmitted in the region of Terahertz ray covering, is reflected
Terahertz ray reduce, the Terahertz ray transmitted through conveyer belt can be received by CCD camera 2, and be reflected by steel rope core
Terahertz ray can not be received by CCD camera 2, through CCD camera 2 imaging after image in steel rope core part show as it is black
The shade of color, so the Terahertz intensity that CCD camera 2 is received can also accordingly increase, image caused by CCD camera 2 leads to
Cross signal transmission system 4 and be transferred to image analysis system 5, the terahertz for judging that CCD camera 2 is shot is analyzed by image analysis system 5
Hereby whether the steel rope core conveying belt joint in image is twitched, once image analysis system 5 judges that feature occurs, will be incited somebody to action
Danger signal passes to alarm and conveyer belt control system 7, then sends police to related personnel by alarm and conveyer belt control system 7
Report, and control conveyer to enter deceleration or stopped status, realize that steel rope core conveying belt joint twitches detection and early warning.
The course of work that above-mentioned steel rope core conveying belt joint twitches Terahertz online test method is：
1）The Terahertz ray that described Terahertz light source 1 is launched is covered in the middle section of steel rope core conveying belt 3, the area surface
Product does not scheme spray due to the joint of steel rope core conveying belt 3 and reflects Terahertz extremely strong metal more than or equal to the area of joint
Film, remainder scribble the metallic film, so when Terahertz passes through 3 joint of steel rope core conveying belt, Terahertz not by
It is fully reflective fall, on-line detecting system start working, due to steel rope core conveying belt 3 outside rubber layer to Terahertz electromagnetism spoke
It is transparent to penetrate, and the steel rope core inside conveyer belt has strong reflection characteristic to Terahertz ray, and this to be covered by Terahertz ray
The joint of the steel rope core conveying belt 3 of lid is not that the part of steel rope core is transmitted back CCD camera 2, and CCD camera 2 captures enough
The Terahertz ray of intensity produces clearly Terahertz image, if now steel rope core conveying belt joint is twitched, Terahertz
The Terahertz ray increase being transmitted in the region of ray covering, the Terahertz ray reflected is reduced, transmitted through conveyer belt
Terahertz ray can be received by CCD camera 2, and can not be received by the Terahertz ray that steel rope core reflects by CCD camera 2
Arrive, the part of steel rope core shows as the shade of black in the image after the imaging of CCD camera 2, so CCD camera 2 is received
Terahertz intensity also can correspondingly increase.
2）Described anti-explosion safety system 6 is fixed on immediately below region to be measured at 35cm, and anti-explosion safety system 6 is in region to be measured
It is open setting in vertical direction, it is ensured that the light path of Terahertz ray will not be blocked, and described THz source 1 is positioned to be measured defeated
The surface of band is sent, described CCD camera 2 is placed on inside anti-explosion safety system 6 and with THz source 1 on the same line,
When conveying band joint is in the region of Terahertz ray covering, on-line detecting system is brought into operation, and THz source 1 is sent
Terahertz ray can easily penetrate the rubber part of conveyer belt, so as to be received by CCD camera 2, and the steel in conveyer belt
Wire rope core part is reflected Terahertz ray so as to be received by CCD camera 2, then now the can of CCD camera 2 photographs steel cable
The joint image of core conveyer belt 3, once the joint of steel rope core conveying belt 3 is twitched, then by steel in the region of Terahertz covering
The area of wire rope core has reduced the area that i.e. Terahertz is reflected and reduced, and the area of rubber part, which increases, penetrates conveyer belt too
Hertzian rays increases, and now the image taken by CCD camera 2 will be shown as the black shade under highlighted background, this black
Shade is exactly that obvious feature, this method are in this, as steel under Terahertz irradiation after the steel rope core in conveyer belt is twitched
The distinguishing rule that wire rope core conveying band joint is twitched.
3）The data signal that CCD camera 2 captures is passed to image analysis system 5 by described signal transmission system 4, profit
With image analysis system 5, the distinguished number of itself judges whether steel rope core conveying belt joint is twitched, and is taken out in discovery joint
In the case of dynamic, the system can also be assessed twitch situation, once find that steel rope core conveying belt joint is twitched situation and surpassed
The threshold value of setting is crossed, image analysis system 5 is informed about alarm and takes corresponding action with adhesive tape control system 7, by right
Related personnel sends alarm, takes conveyer belt the measure such as deceleration or shutdown to complete the early warning for coal mine conveying belt.
Embodiment 2
2）Described anti-explosion safety system 6 is fixed on immediately below region to be measured at 30cm, and anti-explosion safety system 6 is vertical in region to be measured
It is open setting on direction, it is ensured that the light path of Terahertz ray will not be blocked, other same embodiments 1.
Embodiment 3
2）Described anti-explosion safety system 6 is fixed on immediately below region to be measured at 40cm, and anti-explosion safety system 6 is vertical in region to be measured
It is open setting on direction, it is ensured that the light path of Terahertz ray will not be blocked, other same embodiments 1.
Claims (1)
1. a kind of steel rope core conveying belt joint twitches online test method, it is characterised in that is a kind of sensor using Terahertz to be quick
Sense source, using Terahertz object slight change can be made rapidly analysis and differentiate, THz imaging technology Billy is with other skills
The characteristics of resolution ratio and the depth of field of detection image obtained by art are remarkably reinforced and not injured to human body, by terahertz imaging skill
Art and CCD camera image detecting technique are combined the method for completing that detection is twitched to steel rope core conveying belt joint, specific detection
Step is：
1）Device is by THz source used by this method（1）, CCD camera（2）, steel rope core conveying belt（3）, signal transmission system
（4）, image analysis system（5）, anti-explosion safety system（6）With alarm and conveyer belt control system（7）Composition；The THz source
（1）And CCD camera（2）, respectively positioned at the both sides of conveyer belt to be measured and on the same line, CCD camera（2）Positioned at conveying to be measured
Band downside, THz source（1）On the upside of conveyer belt to be measured, CCD camera（2）Positioned at anti-explosion safety system（6）Inside, explosion-proof peace
Total system（6）Below conveyer belt, with THz source（1）Positioned at same straight line, described signal transmission system（4）With it is explosion-proof
Security system（6）It is connected, described image analysis system（5）With signal transmission system（4）Be connected, described alarm with it is defeated
Send band control system（7）With image analysis system（5）It is connected；To described steel rope core conveying belt（3）, steel rope core to be measured connects
The outside in the region at head does not apply any metallic paint, and remaining part spray coating reflects Terahertz extremely strong metallic film, described
CCD camera（2）The model of use is MindVision MV-GE1000M-T；Signal transmission system（4）It is to pass through CCD camera
（2）The USB interface carried, with image analysis system（5）It is connected；Image analysis system (5) includes computer hardware and program
Software；The model that anti-explosion safety system (6) uses is KH-3000；The model that alarm uses with conveyer belt control system (7) is west
The S7-300 of door；
2）The Terahertz ray of described Terahertz light source (1) transmitting is covered in the middle section of steel rope core conveying belt (3), the area
Domain area is more than or equal to the area of joint, and when joint is in the region, Terahertz passes through steel rope core conveying belt (3) joint
Place, the rubber layer of the outside of conveyer belt is transparent to terahertz electromagnetic radiation, and the steel rope core inside conveyer belt is penetrated to Terahertz
Line has strong reflection characteristic, and this make it that the joint of the steel rope core conveying belt (3) covered by Terahertz ray is not steel rope core
Part is transmitted back CCD camera (2), CCD camera（2）The Terahertz ray for capturing sufficient intensity produces clearly Terahertz figure
Picture, if now steel rope core conveying belt joint is twitched, the Terahertz ray that is transmitted in the region of Terahertz ray covering
Increase, the Terahertz ray reflected are reduced, and the Terahertz ray transmitted through conveyer belt can be by CCD camera（2）Receive, and
Can not be by CCD camera by the Terahertz ray that steel rope core reflects（2）Receive, through CCD camera（2）Steel cable in image after imaging
The part of core shows as the shade of black, so CCD camera（2）The Terahertz intensity received can also accordingly increase；CCD
Camera（2）Caused image passes through signal transmission system（4）It is transferred to image analysis system（5）, by image analysis system（5）Point
Analysis judges CCD camera（2）Whether the steel rope core conveying belt joint in the Terahertz image of shooting is twitched, once image point
Analysis system（5）Judge that feature occurs, danger signal will be passed to alarm and conveyer belt control system（7）, then by alarm with
Conveyer belt control system（7）Alarm is sent to related personnel, and controls conveyer to enter deceleration or stopped status, realizes steel
Wire rope core conveying band joint twitches detection and early warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820654.2A CN107728223A (en) | 2017-09-13 | 2017-09-13 | A kind of steel rope core conveying belt joint twitches online test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710820654.2A CN107728223A (en) | 2017-09-13 | 2017-09-13 | A kind of steel rope core conveying belt joint twitches online test method |
Publications (1)
| Publication Number | Publication Date |
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| CN107728223A true CN107728223A (en) | 2018-02-23 |
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ID=61206111
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| CN201710820654.2A Pending CN107728223A (en) | 2017-09-13 | 2017-09-13 | A kind of steel rope core conveying belt joint twitches online test method |
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| CN109142268A (en) * | 2018-08-30 | 2019-01-04 | 山东康迪泰克工程橡胶有限公司 | Steel cable core conveying belt Terahertz real-time online detection system and method |
| CN110954535A (en) * | 2018-09-26 | 2020-04-03 | 深圳市瑞锋仪器有限公司 | Hair product flexibility and sag tester |
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| CN110954535A (en) * | 2018-09-26 | 2020-04-03 | 深圳市瑞锋仪器有限公司 | Hair product flexibility and sag tester |
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