CN103424808B - Optical fiber propelling control method of optical fiber fusion splicer and optical fiber fusion splicer - Google Patents
Optical fiber propelling control method of optical fiber fusion splicer and optical fiber fusion splicer Download PDFInfo
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- CN103424808B CN103424808B CN201310379722.8A CN201310379722A CN103424808B CN 103424808 B CN103424808 B CN 103424808B CN 201310379722 A CN201310379722 A CN 201310379722A CN 103424808 B CN103424808 B CN 103424808B
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 135
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- 230000004927 fusion Effects 0.000 title abstract 5
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- 238000003466 welding Methods 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
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- 238000010586 diagram Methods 0.000 description 3
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- 238000003384 imaging method Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The invention discloses an optical fiber propelling control method of an optical fiber fusion splicer. The method comprises the step of measuring light intensity containing an optical fiber splicing position area; the step of propelling a first optical fiber into the optical fiber splicing position area, recording the change of the light intensity of the optical fiber splicing position area, and stopping propelling the first optical fiber when a light intensity changing value reaches a preset first threshold value; the step of propelling a second optical fiber into the optical fiber splicing position area, recording the change of the light intensity of the optical fiber splicing position area, and stopping propelling the second optical fiber when a light intensity changing value reaches a preset second threshold value; the step of propelling the first optical fiber and the second optical fiber to move for preset distance to enable the first optical fiber and the second optical fiber to reach the splicing position. The method and the optical fiber fusion splicer designed based on the method, the cost for manufacturing the optical fiber fusion splicer can be greatly reduced.
Description
Technical field
Control method and instrument thereof that optical fiber advances position when the present invention relates to a kind of connecting fiber end, particularly when controlling fiber position to the improvement and the optical fiber splicer of method after using this improvement that identify this fiber position method.
Background technology
The currently used major way of optical fiber splicer is automatic identification, and auto-alignment can adopt eye recognition, manual alignment where necessary.We know, the diameter of optical fiber only has 125 microns, the fibre core aimed at is needed to only have several microns, therefore, take the auto-alignment based on image recognition technology, high requirement is had to the picture quality that camera extracts, we know, optical fiber image has been exaggerated more than 200 ~ 300 times, this is also with regard to meaning person, a little optical fiber placement error will cause the focal length of image to be forbidden, and then the picture quality causing camera to extract is not good, the identification of effect diagram picture, in order to prevent the generation of this problem, the optical fiber splicer of automatic identification just must take following way to solve problem:
1, improve the precision of fiber clamp, the possibility allowing optical fiber place generation deviation reduces.
2, use the camera lens of energy auto-focusing, increase corresponding control circuit and precision electric motor, take so-called 6 motor strategies, be exactly outside necessary propelling and regulating, increase by two focusing motors.
3, improve the arithmetic capability of image recognition software, sophisticated image recognizer, this just means that this must improve storage and the arithmetic capability of mainboard.
Three above-mentioned ways, take poor effect separately, must comprehensively implement, the reliability of guarantee image recognition, and then the success ratio improving welding, but, which improves the manufacturing cost of optical fiber splicer.
Similar technical scheme is disclosed in Chinese invention patent application CN1497277A, in this application, the quality of fused fiber splice is improved by the precision improving fixture, aiming in the process of optical fiber at it is catch imaging fiber by CCD, then, after carrying out image processing and analyzing, optical fiber align state is judged.
Clearly, in existing optical fiber splicer, in order to automatically identify and control optical fiber transfer position, need that the optical fiber image captured CCD constantly identifies, computing and judgement optical fiber present position, and feed back to drive system further and carry out delivery optical fiber.And if optical fiber trickle focal position of departing from imaging system in course of conveying, then can cause CCD image blur, in order to ensure in this case, control system then needs to improve hardware specification, thus ensure can automatically to identify in overall process, computing and judgement optical fiber present position.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency existing in prior art, there is provided one can complete optical fiber automatically to advance, manual alignment, reach method and the product of the manual alignment function with recognition capability optical fiber splicer, make the production cost of this product be significantly less than the optical fiber splicer adopting image recognition technology simultaneously.
In order to realize foregoing invention object, the invention provides following technical scheme:
An optical fiber Solid rocket engine method for optical fiber splicer, comprises the following steps:
A. the light intensity that includes the fused fiber splice band of position is measured;
B. promote first optical fiber and enter this region, and record the light intensity change in this region, when light intensity changing value reaches predetermined first threshold, stop promotion first optical fiber;
C. promote second optical fiber and enter this region, and record the light intensity change in this region, when light intensity changing value reaches predetermined Second Threshold, stop promotion second optical fiber;
D. promotion first optical fiber and second optical fiber move predeterminable range, make promotion first optical fiber and second optical fiber reach posetionof weld.
The preferred embodiments of the invention are as follows:
Preferably, the image capture equipment in optical fiber splicer is adopted to capture and record the intensity signal of above-mentioned zone.
Preferably, the described intensity signal of acquisition and record above-mentioned zone comprises and transfers gray-scale value to all pixels in this region, records the gray-scale value in this region.
Preferably, in D step, synchronously promotion first optical fiber and second optical fiber move predeterminable range.
The present invention also provides corresponding optical fiber splicer, described optical fiber splicer comprises structure of fiber_optic, optical fiber transport portion, image acquisition part and control section, image acquisition part obtains the information of welding area and is sent to control section, control section controls structure of fiber_optic and the motion of optical fiber transport portion, it is characterized in that: described image acquisition part can obtain the intensity signal of welding area and be sent to control section, described control section has the module calculating intensity signal and compare, control section controls the motion of optical fiber transport portion according to the variable quantity obtaining intensity signal, described control section comprises following three state: A, control first optical fiber and enter welding area, read intensity signal variable quantity, when intensity signal variable quantity reaches predetermined first threshold, stop propelling first optical fiber, B, control second optical fiber enter welding area, read intensity signal variable quantity, until intensity signal variable quantity reaches predetermined Second Threshold, stop propelling second optical fiber, C, after A and B completes, first optical fiber and second optical fiber is advanced to move predeterminable range.
Preferably, described optical fiber splicer also comprises Non-follow control inputting interface and display screen, after control section completes step C, by Non-follow control inputting interface input control signal to control section, control structure of fiber_optic and/or the motion of optical fiber transport portion, and show on a display screen after obtaining image information by image acquisition part.
compared with prior art, beneficial effect of the present invention: compare with the automatic Push Technology based on image recognition, the present invention can complete identical object, simultaneously owing to only needing the variable quantity calculating light intensity, its hardware cost is far below the hardware cost of image recognition technology, and comparing with image recognition technology with the accuracy requirement of fiber orientation groove light path, low several order of magnitude.This is because image recognition technology, that binaryzation is carried out to all pixels in screen, namely become gray-scale value, right later analysis those are heads of optical fiber, those are fibre cores of optical fiber, those are edges of optical fiber, therefore, image blurring, soiled, background is not good etc. all can cause judging unsuccessfully, so, in order to avoid judging failure, must equipment make very superior, arithmetic capability very powerful, also requires that optical fiber is very clean simultaneously, thus allows the manufacture of optical fiber splicer and maintenance cost very high.And the present invention just utilizes the brightness of screen to change, judge whether optical fiber enters screen, by setting suitable threshold value, optical fiber is entered respectively, stop when just having entered screen at every turn, then according to this predeterminated position, extrapolate the position of two optical fiber, just can realize automatically advancing accurately, arrive the effect identical with image recognition technology.In the present invention, light path and fiber orientation groove and optical fiber itself little on the basic impact in this location, special needs to be pointed out is, many CMOS or CCD chip have this bright point other ability simultaneously, and have setting threshold value, the ability of degree of regulation, therefore, does not need to pay especially, such as, only the BF3003 chip of more than 30 yuan of a slice just can realize this function.And based on the optical fiber splicer of this method design, significantly manufacturing cost can be reduced.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the inventive method embodiment.
Fig. 2, Fig. 3 and Fig. 4 are the schematic diagram of figure fiber position in embodiment of the present invention optical fiber course of conveying.
Fig. 5 is the outside drawing of embodiment of the present invention optical fiber splicer.
Embodiment
Below in conjunction with test example and embodiment, the present invention is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the present invention is only limitted to following embodiment, all technology realized based on content of the present invention all belong to scope of the present invention.
Embodiment 1
A kind of optical fiber splicer, as shown in Figure 5, comprise housing 3, structure of fiber_optic 2, display screen 1, has control knob below display screen.Wherein structure of fiber_optic 2 finely tunes the position of optical fiber for fixed fiber, has optical fiber transport portion for two optical fiber are delivered to welding area in housing, also has CMOS or CCD and imaging system for capture fibre optics image in housing.This part and existing fiber heat sealing machine similar.
The present embodiment is relative to the improvement part of existing fiber heat sealing machine, the function utilizing CMOS or CCD can read light intensity judges the light intensity change of a certain identified region (this region comprises welding area or is exactly welding area), whether the further mode identification optical fiber of the light and shade change judging this identified region that utilizes enters identified region, and then judges fiber position.
Such as, when putting optical fiber well, after cover lid, at this moment, by designing requirement, optical fiber, beyond the visual field in welding (or identification) region, can be ensured by the cooperation of fixture and cutting knife, such as, clip the outer unnecessary part of fixture with cutting knife.At this moment, do not have optical fiber in identified region, the brightness of identification is a basic definite value, then, as shown in Figure 2, first promote an optical fiber, when optical fiber just enters identified region, CMOS or CCD has found brightness change, at this moment, we can judge that this optical fiber enters identified region, after light intensity change or brightness change reach certain threshold value, we stop this optical fiber, and we obtain identified region brightness by this.Then as shown in Figure 3, promote the optical fiber of opposite side, when it enters identified region, CMOS or CCD detects that brightness changes, just know that optical fiber enters identified region, after light intensity change or brightness change reach certain threshold value, at this moment because two optical fiber are all at identified region edge, they are in identified region and can be preset at a distance of a suitable distance, as shown in Figure 4.So push away optical fiber motor and by predeterminable range, both can be shifted onto a suitable distance, then, user's manual alignment two optical fiber, then discharge welding optic fibre.Light path and fiber orientation groove and optical fiber itself little on the basic impact in this location, special needs to be pointed out is simultaneously, many CMOS or CCD chip, there is this bright point other ability, and have setting threshold value, the ability of degree of regulation, therefore, do not need to pay especially, such as, only the BF3003 chip of more than 30 yuan of a slice just can realize this function.And based on the optical fiber splicer of this method design, significantly manufacturing cost can be reduced.
Claims (6)
1. an optical fiber Solid rocket engine method for optical fiber splicer, comprises the following steps:
A. the light intensity that includes the fused fiber splice band of position is measured;
B. promote first optical fiber and enter this region, and record the light intensity change in this region, when light intensity changing value reaches predetermined first threshold, stop promotion first optical fiber;
C. promote second optical fiber and enter this region, and record the light intensity change in this region, when light intensity changing value reaches predetermined Second Threshold, stop promotion second optical fiber;
D. promotion first optical fiber and second optical fiber move predeterminable range, make promotion first optical fiber and second optical fiber reach posetionof weld.
2. want the optical fiber Solid rocket engine method of the optical fiber splicer described in 1 according to right, it is characterized in that: adopt the image capture equipment in optical fiber splicer capture and record the intensity signal of above-mentioned zone.
3. want the optical fiber Solid rocket engine method of the optical fiber splicer described in 1 or 2 according to right, it is characterized in that: the described intensity signal of acquisition and record above-mentioned zone comprises the calculating of all grey scale pixel values to this region, records the gray-scale value in this region.
4. want the optical fiber Solid rocket engine method of the optical fiber splicer described in 3 according to right, it is characterized in that: in D step, synchronously promotion first optical fiber and second optical fiber move predeterminable range.
5. an optical fiber splicer, described optical fiber splicer comprises structure of fiber_optic, optical fiber transport portion, image acquisition part and control section, image acquisition part obtains the information of welding area and is sent to control section, control section controls structure of fiber_optic and the motion of optical fiber transport portion, it is characterized in that: described image acquisition part can obtain the intensity signal of welding area and be sent to control section, described control section has the module calculating intensity signal and compare, control section controls the motion of optical fiber transport portion according to the variable quantity obtaining intensity signal, described control section comprises following three state: A, control first optical fiber and enter welding area, read intensity signal variable quantity, when intensity signal variable quantity reaches predetermined first threshold, stop propelling first optical fiber, B, control second optical fiber enter welding area, read intensity signal variable quantity, until intensity signal variable quantity reaches predetermined Second Threshold, stop propelling second optical fiber, C, after A and B completes, first optical fiber and second optical fiber is advanced to move predeterminable range.
6. want the optical fiber splicer described in 5 according to right, it is characterized in that: described optical fiber splicer also comprises Non-follow control inputting interface and display screen, after control section completes step C, by Non-follow control inputting interface input control signal to control section, control structure of fiber_optic and/or the motion of optical fiber transport portion, and show on a display screen after obtaining optical fiber image information by image acquisition part.
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| CN201310379722.8A CN103424808B (en) | 2013-08-28 | 2013-08-28 | Optical fiber propelling control method of optical fiber fusion splicer and optical fiber fusion splicer |
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| CN105974516A (en) * | 2016-04-20 | 2016-09-28 | 安徽理工大学 | Full-automatic handheld ribbon fiber cutting and end processing all-in-one machine and using method thereof |
| CN107632344B (en) * | 2017-11-02 | 2020-03-06 | 一诺仪器（中国）有限公司 | Optical fiber end face propulsion control method and system of optical fiber fusion splicer |
| CN112719585B (en) * | 2020-12-16 | 2022-06-17 | 深圳市讯泉科技有限公司 | Fusion splicing control method, device, equipment and computer readable storage medium |
| EP4343396A1 (en) * | 2021-05-21 | 2024-03-27 | Sumitomo Electric Industries, Ltd. | Fusion splicing machine |
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| JP3495504B2 (en) * | 1996-05-17 | 2004-02-09 | 古河電気工業株式会社 | Optical fiber fusion splicer |
| JP3520273B2 (en) * | 2001-06-27 | 2004-04-19 | 株式会社フジクラ | Optical fiber fusion splicer and discharge beam determination method in the splicer |
| CN101251624A (en) * | 2008-03-22 | 2008-08-27 | 燕山大学 | Photon crystal optical fiber fusion splicing three-dimensional alignment apparatus and method |
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Effective date of registration: 20171116 Address after: 610000, B-6, Qingyang Industrial Park, dragon industrial port, Qingyang District, Sichuan, Chengdu Patentee after: SIGNAL FIRE TECHNOLOGY Co.,Ltd. Address before: 610000 Sichuan province Chengdu city Qingyang District street small pavilion 0422 sandalwood garden project Patentee before: Luo Chunhui |