CN202045201U - Video steel pipe tracking device - Google Patents
Video steel pipe tracking device Download PDFInfo
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- CN202045201U CN202045201U CN2011200259728U CN201120025972U CN202045201U CN 202045201 U CN202045201 U CN 202045201U CN 2011200259728 U CN2011200259728 U CN 2011200259728U CN 201120025972 U CN201120025972 U CN 201120025972U CN 202045201 U CN202045201 U CN 202045201U
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- steel pipe
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- strip
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Abstract
The utility model discloses a video steel pipe tracking device which comprises a strip-shaped light source, a camera and a computer, wherein the projecting direction of the strip-shaped light source penetrates through the vision of the camera, and a signal output line of the camera is connected with the computer. Strip-shaped light emitted from the strip-shaped light source irradiates steel pipes in the production line, the deformation curve of the strip-shaped light falling on the steel pipes is collected by the camera and is sent to the computer, the computer is utilized for judging the existence of the steel pipes according to the curvature variation of reflected light, the moving direction of the steel pipes is judged according to the timing sequence of front and rear reflected light grates, the quantity of the steel pipes is judged according to the quantity of wave crests formed by reflection of the strip-shaped light, and the positions of the steel pipes are tracked according to the positions and the lasting time of the wave crests in the view filed after the reflection of the strip-shaped light. In the utility model, a structured light detection method is adopted for monitoring the flowing direction of the steel pipes, the reliability is improved, the detection distance is long, the influence on the steel pipes is less, damage is not easy, a near-infrared light source is adopted, and the site lighting variation can not cause influence, the structure is simple, and the installing and wiring are convenient.
Description
Technical field:
The utility model relates to field of metallurgy, relates in particular to the steel pipe's production technology, the particularly supervising device of steel pipe's production process, particularly a kind of video steel pipe tracking means.
Background technology:
At the back segment of ERW pipe production line, steel pipe is admitted to the finishing zone and tests and handle after the continuous pipe of whole coil of strip production is cut.Current standard---the requirement of API (American Petroleum Institute) standard according to ERW steel pipe's production industry, need realize reviewing of creation data to all products that meets standard-required, the data of correspondence and all detection data in the time of just can inquiring about this steel pipe of production by the numbering that finally is printed on the steel pipe body.Owing to the area in whole finishing zone is very big, length can reach hundreds of rice, the flow direction complexity of steel pipe in the zone, and it is numerous to detect the equipment of handling, and is difficult to all data are corresponded on the steel pipe of each root production accurately.In the prior art, adopt sensor to detect and the artificial mode that matches of revising,, add by to judging the flow direction of following the tracks of steel pipe with the logic of the transmission roller channel of the carrying mechanism of solenoid control and Electric Machine Control by the position of various sensor sensing steel pipes.Corresponding a part of steel pipe processed offline requires to adopt artificial the correction, be admitted to such as steel pipe and carried out artificial processing (polishing behind the manual detection stand, short cut etc.), perhaps ensuing processing etc. is carried out in the online zone that the steel pipe of off-line hangs in appointment again by crane.
But; there is following problem in prior art: (1) sensor detection accuracy existing problems; because the environment of pipe production line is abominable; body can have the inside and outside burr that emulsifying liquid and welding cause during by the sensor test point usually; there is a large amount of brown iron oxides on the body surface, and temperature was higher when steel pipe entered the finishing zone simultaneously.The sensor ratio that detects steel pipe is easier to cause error signal.Simultaneously, because the product line caliber gap from small to large of the steel pipe of producing is bigger, the detection position of sensor also is a very big problem, badly is easy to cause some product because the problem of sensor installation site and can't responding to if adjust, and then can't detects.(2) field wiring complexity.Because the area in finishing zone is huge, each regional area is also very big, the size of steel pipe differs, the length gap is also very big, to correctly detect the position of steel pipe so, just a large amount of sensors need arranged, and under existing conditions, because the reliability problems that single-sensor detects, common corresponding method is to adopt the method for redundant sensor, the sensor that so just needs greater number considers that each sensor all needs a series of cables such as power supply, detection signal, and whole wiring will be very complicated.(3) enforcement and maintenance cost height.The cost of design, construction, debugging, maintenance, since the problem of the quantity of a large amount of sensors, the very difficulty that just becomes, and cost can roll up.Therefore the process of whole project also can be delayed for a long time.Simultaneously, the damage of sensor (accidental damage that damages naturally and clashed into by steel pipe) makes that spare part and the personnel attrition safeguarded are all very big.(4) software design difficulty height.The processing of a large amount of input and output points, redundant processing can be that the difficulty of software design increases greatly.(5) be unfavorable for system modular.Because all signaling points of sensor detecting system all are closely related with control system, the software and hardware of whole system can finally merge, and is difficult to carry out modularization.
Summary of the invention:
The purpose of this utility model is to provide a kind of video steel pipe tracking means, and described this video steel pipe tracking means will solve the technical problem that the steel pipe detection is inaccurate in the pipe production line in the prior art, monitoring circuit is complicated and maintenance cost is high.
This video steel pipe tracking means of the present utility model, constitute by strip source, video camera and computer, it is characterized in that: the projecting direction of described strip source is through the visual field of described video camera, and the output line of described video camera is connected with described computer.
Further, described strip source is a near-infrared light source.
Further, described video camera is a near infrared camera.
Further, described computer is integrated in the described video camera.
Further, described computer is connected in Ethernet or the wireless network.
Further, described strip source and video camera are staggered installs.
Further, described strip source and video camera are arranged on the same support, are provided with between strip source and the video camera at interval.
Further, described strip source and video camera are arranged in the field layer, described computer adopts image work of treatment station and is arranged in the key-course, the data wire of video camera is connected with described image work of treatment station, be provided with a plurality of Programmable Logic Controllers in the described key-course, image work of treatment station is connected with described Programmable Logic Controller by network, key-course is connected with a manufacturing execution system by network, described manufacturing execution system comprises the operation work station, engineering work station and manufacturing execution system server, described operation work station, engineering work station is connected with a switch respectively with the manufacturing execution system server, and the network in the key-course also is connected with described switch.
Further, be provided with sensor in the field layer, described sensor is arranged on steel pipe conveyer belt place.
Operation principle of the present utility model is: the method that the utility model adopts structured light to detect, structured light refer to the strip light sent by visible or invisible strip source.When structured light shone body surface, the structural relation between the grating was by the concavo-convex modulation of body surface.Be embodied in when body surface is smooth relationship consistency between the grid of the light that illuminator and video camera obtain or have projective transformation; When the body surface out-of-flatness, the difference of object height changes the direct distance of grid and the shape of light, changes the 3D information that can obtain body surface by the video camera analysis image.Adopt near-infrared light source can reduce the influence of environment.When steel pipe, structured light deformation occurred by the modulation of the height of steel pipe.Utilize camera acquisition to drop on the inflection curves of the strip light on the steel pipe, video camera sends to computer with picture signal, utilize computer to change and judge that steel pipe exists according to catoptrical curvature, judge the steel pipe travel direction according to the sequential of former and later two reverberation grids, the quantity of the crest that forms according to strip light reflection back is judged the quantity of steel pipe, position and the duration position of following the tracks of steel pipe of the crest that forms according to strip light reflection back in the visual field.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model adopts the structured light detection method that steel pipe is flowed to and monitors, and improves reliability, because the distance that detects is far away, therefore be subjected to the influence of steel pipe itself less, not fragile, owing to adopted near-infrared light source, the illumination variation of production scene can not impact system yet simultaneously; And it is simple in structure, installation wiring is convenient, number of devices is few, one cover camera and strip source system can cover large stretch of zone, the big quantity sensor that has replaced original system, the computer (image work of treatment station) that is used for processing image information simultaneously can be handled the data of a plurality of cameras simultaneously.Independent and the original control system of video recognition system itself can independently split, simultaneously also can be independent fully according to the zone corresponding to each zone, and the demand for different clients has just had better adaptability like this.
Description of drawings:
Fig. 1 is the detection schematic diagram (when steel pipe does not exist) of video steel pipe tracking means of the present utility model.
Fig. 2 is the detection schematic diagram (when steel pipe exists) of video steel pipe tracking means of the present utility model.
Fig. 3 is the schematic diagram of an embodiment of video steel pipe tracking means of the present utility model.
The specific embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, video steel pipe tracking means of the present utility model, constitute by strip source (not shown), video camera 8 and computer, wherein, the projecting direction of described strip source is through the visual field of described video camera 8, and the output line of described video camera 8 is connected with described computer.
The concrete described strip source that utilizes sends strip light, utilize the steel pipe 10 in the described strip light irradiation production line, utilize described video camera 8 to gather the inflection curves that drops on the strip light on the steel pipe 10, video camera 8 sends to described computer with picture signal, utilize computer to change and judge that steel pipe 10 exists according to catoptrical curvature, judge steel pipe 10 travel directions according to the sequential of former and later two reverberation grids, the quantity of the crest that forms according to strip light reflection back is judged the quantity of steel pipe 10, position and the duration position of following the tracks of steel pipe 10 of the crest that forms according to strip light reflection back in the visual field.
Concrete, when having steel pipe 10 in the visual field of video camera 8, the structured light at A, B two places deformation occurred by the modulation of the height of steel pipe.This inflection curves of COMPUTER DETECTION, thus the existence of perception steel pipe 10 is whether.When video camera 8 and strip source fixedly the time, change by judging catoptrical curvature, judge whether steel pipe 10 exists, can judge the steel pipe travel direction by the sequential of inspection A place's grid and B place grid.
Further, described strip source is a near-infrared light source.
Further, described video camera 8 is near infrared cameras.
Further, described computer is integrated in the described video camera 8.
Further, described computer is connected in Ethernet or the wireless network.
Further, described strip source and video camera 8 staggered installations.
As shown in Figure 3, in an embodiment of the present utility model, described strip source and video camera 8 are arranged in the field layer, described computer adopts image work of treatment station 6 and is arranged in the key-course, the data wire of video camera 8 is connected with described image work of treatment station 6, be provided with a plurality of Programmable Logic Controllers 5 in the described key-course, image work of treatment station 6 is connected with described Programmable Logic Controller 5 by network, key-course is connected with a manufacturing execution system by network, described manufacturing execution system comprises the operation workstation1, engineering work station 2 and manufacturing execution system server 3, described operation workstation1, engineering work station 2 is connected with a switch 4 respectively with manufacturing execution system server 3, and the network in the key-course also is connected with described switch 4.
Further, be provided with sensor 9 in the field layer, described sensor 9 is arranged on steel pipe conveyer belt place.
Further, Programmable Logic Controller 5 is connected with contact panel 7.
Claims (9)
1. a video steel pipe tracking means is made of strip source, video camera and computer, it is characterized in that: the projecting direction of described strip source is through the visual field of described video camera, and the output line of described video camera is connected with described computer.
2. video steel pipe tracking means as claimed in claim 1, it is characterized in that: described strip source is a near-infrared light source.
3. video steel pipe tracking means as claimed in claim 2, it is characterized in that: described video camera is a near infrared camera.
4. video steel pipe tracking means as claimed in claim 1, it is characterized in that: described computer is integrated in the described video camera.
5. video steel pipe tracking means as claimed in claim 1 is characterized in that: described computer connects and is connected with an Ethernet or a wireless network.
6. video steel pipe tracking means as claimed in claim 1 is characterized in that: described strip source and video camera are staggered to be installed.
7. video steel pipe tracking means as claimed in claim 1 is characterized in that: described strip source and video camera are arranged on the same support, are provided with between strip source and the video camera at interval.
8. video steel pipe tracking means as claimed in claim 1, it is characterized in that: described strip source and video camera are arranged in the field layer, described computer adopts image work of treatment station and is arranged in the key-course, the data wire of video camera is connected with described image work of treatment station, be provided with a plurality of Programmable Logic Controllers in the described key-course, image work of treatment station is connected with described Programmable Logic Controller by network, key-course is connected with a manufacturing execution system by network, described manufacturing execution system comprises the operation work station, engineering work station and manufacturing execution system server, described operation work station, engineering work station is connected with a switch respectively with the manufacturing execution system server, and the network in the key-course also is connected with described switch.
9. video steel pipe tracking means as claimed in claim 8 is characterized in that: be provided with sensor in the field layer, described sensor is arranged on steel pipe conveyer belt place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200259728U CN202045201U (en) | 2011-01-26 | 2011-01-26 | Video steel pipe tracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200259728U CN202045201U (en) | 2011-01-26 | 2011-01-26 | Video steel pipe tracking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045201U true CN202045201U (en) | 2011-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200259728U Expired - Lifetime CN202045201U (en) | 2011-01-26 | 2011-01-26 | Video steel pipe tracking device |
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| Country | Link |
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| CN (1) | CN202045201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107562011A (en) * | 2017-10-18 | 2018-01-09 | 芜湖新兴铸管有限责任公司 | A kind of cast tube production line security protection control system and its control method |
-
2011
- 2011-01-26 CN CN2011200259728U patent/CN202045201U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107562011A (en) * | 2017-10-18 | 2018-01-09 | 芜湖新兴铸管有限责任公司 | A kind of cast tube production line security protection control system and its control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 335 3rd floor, Guangshun Road, Changning District, Shanghai Patentee after: Shanghai ruibode intelligent system Limited by Share Ltd Address before: 335 3rd floor, Guangshun Road, Changning District, Shanghai Patentee before: Shanghai Ruibode Intelligent System Sci. & Tech. Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |