CN104633501A - Lighting source and operating method thereof of tire mold character recognition system - Google Patents
Lighting source and operating method thereof of tire mold character recognition system Download PDFInfo
- Publication number
- CN104633501A CN104633501A CN201510070755.3A CN201510070755A CN104633501A CN 104633501 A CN104633501 A CN 104633501A CN 201510070755 A CN201510070755 A CN 201510070755A CN 104633501 A CN104633501 A CN 104633501A
- Authority
- CN
- China
- Prior art keywords
- lighting source
- identification system
- character identification
- mould character
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000011017 operating method Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000012858 resilient material Substances 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract description 21
- 230000000007 visual effect Effects 0.000 abstract description 3
- 239000013013 elastic material Substances 0.000 abstract 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
- F21V21/108—Arms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
Abstract
The invention discloses a lighting source of a tire mold character recognition system and belongs to the field of visual lighting sources. The lighting source comprises a main support, a round hole is designed in the center of the main support, the round hole serves as a through hole of a camera, auxiliary supports are connected with two sides of the main support, shells are arranged at two tail ends of the auxiliary supports, the main support, the auxiliary supports and the shells form a whole support, an elastic material adheres to and covers the surface of the whole support, light emitting diode (LED) modules are fixed at bottom ends of the shells, the shells are connected with door hinges, and screws are arranged between the door hinges in a connecting mode. Meanwhile, the invention discloses an operating method of the lighting source of the tire mold character recognition system. By means of the lighting source of the tire mold character recognition system, the technical problems of low light quantity utilization rate and insufficient lighting uniformity when existing bowl-shaped light sources are used for illumination of the tire mold character recognition system can be solved.
Description
Technical field
The present invention relates to visual illumination light source, particularly relate to lighting source and the method for operating thereof of wheel mould character identification system.
Background technology
Machine vision is automatically obtained by optics, non-contacting camera and the imaging of an interpretation process real-world object, so that obtains information needed or the process for control machine and detection.In nearly 30 years, obtain swift and violent development, its application is throughout industry, agricultural and military etc.By computer technology to the intersection of Dynamic Non-Destruction Measurement and infiltration, machine vision one of having become in Dynamic Non-Destruction Measurement has much the branch of vitality, and opens the brand-new application of Dynamic Non-Destruction Measurement.The product quality that machine vision is usually used in large batch of production process detects, especially dangerous at testing environment and the implacable occasion of human eye vision.
Wheel mould is the mould manufacturing tire, and the word on wheel mould is all minute surface word, and because people is to the thinking set of word, the detection of minute surface word to the eyes by people causes sizable difficulty.Error rate is higher, and the efficiency detected is lower.In addition, once occur undetected, great economic loss can be caused.
Lighting source on the market for reflective severity is generally bowl-type, and the field of illumination of bowl-type diffuse reflection light source is circular, and the region of taking turns the word on mould is the annular across whole visual field, the loss of many light quantities can be caused like this, reduce the utilization rate of light quantity, and the brightness at often edge is lower, the uniformity is not enough.
Summary of the invention
The object of the invention is to overcome above-mentioned existing technical deficiency, proposes that a kind of profile radian is variable, light quantity utilization rate is higher, the diffuse reflection light source of the wheel mould character identification system of Uniform Illumination.
To achieve these goals, the invention provides following technical scheme:
The lighting source of wheel mould character identification system, comprise main support, wherein the center of main support is circular hole, and this circular hole is the through hole of video camera, and be connected with time support in the both sides of main support, two ends of this support are provided with shell; Main support, secondary support and shell form integral support, and be bonded with resilient materials in this integral support surface coverage, such as rubber, be fixed with LED module in the bottom of shell, this shell is connected with hinge, is connected with screw rod between hinge.
One as the technical program is improved, and the outer surface of described resilient materials scribbles silver color and sprays paint, and inner surface scribbles white diffuse reflecting layer, thus is conducive to the utilization ratio and the irradiation uniformity that improve light quantity.
Another kind as the technical program improves, and this inner surface of outer cover scribbles diffuse reflector.
As another improvement of the technical program, LED module comprises LED array, and this LED array becomes certain angle of inclination with shell, is preferably 15-45 degree angle, thus makes the Illumination Distribution of light source inner top surface more even.
As the further improvement of the technical program, described LED module bottom surface has louvre, to reduce the loss of LED, extends the service life of LED.
Further, rivet interlacement is passed through between described main support and secondary support, shell.
Further, described hinge is connected by nut and pad with screw rod, by rotating nut, to adjust the angle of two shells.
Meanwhile, the invention discloses the method for operating of the lighting source of wheel mould character identification system, comprise the following steps:
S1, the lighting source of first the present invention being taken turns mould character identification system are fixed on the camera head of wheel mould character identification system by connector parts, make the present invention take turns the lighting source of mould character identification system and video camera synchronous axial system and ensure that the axle center of video camera is concentric with the circular hole at center of the present invention;
S2, radian according to wheel mould, by rotating the nut of screw rod on light source, change the radian that the present invention takes turns the lighting source of mould character identification system, makes it and take turns mould radian and match;
S3, the lighting source of by mechanical mechanism the present invention being taken turns mould character identification system adjust to need detection range illuminator level;
S4, switch on power, the present invention takes turns the lighting source of mould character identification system, and video camera starts to gather image, and detection system is started working.
In a word, the present invention compared with prior art, has following beneficial effect:
Lighting source of the present invention is the lighting source of wheel mould character identification system, because wheel mould surface reflection is severe, so this lighting source belongs to diffuse reflection light source, eliminates the impact that the speck that formed because of mirror-reflection causes picture quality.Because light source profile and wheel mould character area are all annulars, make its light quantity utilization rate higher, irradiation uniformity is better.In addition, because the diameter of taking turns mould varies, can rotating nut be passed through, change the angle of two shells, because the effect of resilient materials, time support is rotated, cause the radian of whole light source profile to change, make it want to coordinate with the diameter of wheel mould, make the practicality of this lighting source stronger, thus solving existing bowl-type diffuse reflection light source, light quantity utilization rate is low, the technical matters of irradiation uniformity deficiency.
Accompanying drawing explanation
Fig. 1 is the lighting source internal structure schematic diagram that the present invention takes turns mould character identification system;
Fig. 2 is the external structure schematic diagram of the lighting source of mould character identification system of the present invention;
Fig. 3 is the Illumination Distribution figure of light source inner top surface;
Fig. 4 is the distribution curve of illumination of straight line x=30.
Detailed description of the invention
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent.
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with the Figure of description in the present invention, be clearly and completely described the technical scheme in invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1-2, for the lighting light source structure schematic diagram of the wheel mould character identification system of present pre-ferred embodiments, comprise main support 2, wherein the center of main support 2 is circular hole, this circular hole is the through hole of video camera, be connected with time support 3 in the both sides of main support 2, two ends of this support 3 are provided with shell 6; Main support 2, secondary support 3 and shell 6 are connected to form integral support by rivet 4, and cover at this integral support inner surface and be bonded with resilient materials 1, wherein, the outer surface of resilient materials 1 scribbles silver color and sprays paint, and inner surface scribbles white diffuse reflecting layer.
Wherein, the inner surface of shell 6 scribbles diffuse reflector, is fixed with LED module in the bottom of shell 6, this LED module comprises LED array 10, LED array 10 inclination angle certain for 6 one-tenth, shell, is preferably 30 degree, this shell 6 is connected with hinge 8, is connected with screw rod 5 between hinge 8 and hinge 8.
Wherein, hinge 8 is connected by nut 7 and pad 9 with screw rod 5; Hinge 5 both sides have nut 7 to be connected with screw rod 5.
Lighting source of the present invention is a diffuse reflection light source, and this light source is for die surface smoother, reflective more severe situation.Because die surface smoother, a part of light generation mirror-reflection, so die surface can present the fuzzy inverted image of light source, obtain Uniform Illumination effect and avoid the impact of speck, just requiring the uniform-illumination that light source inner top surface receives.As long as irradiate the uniform-illumination of inner top surface, after light generation diffuse reflection, be uniform in the distribution in space, i.e. brightness uniformity.So the fuzzy inverted image of light source that die surface presents also is brightness uniformity.So just realize the Uniform Illumination in the region that need detect and avoid the appearance of speck.The light of light source inner top surface is mainly from two parts, and a part is the direct irradiation of LED array 10, and another part is the reflection through light source medial surface.The latter is that edge illumination is higher at the illumination calibration of inner top surface.So will, by changing the inclination angle of LED array, allow its light lean on toward center, thus inner top surface uniform-illumination after realizing the superposition of two parts light.As shown in Figure 3, for the Illumination Distribution figure of light source inner top surface, Fig. 4 are the distribution curve of illumination of straight line x=30, in curve, minimal illumination is 7520lux, maximal illumination is 8500lux, and inner top surface minimal illumination is 7300lux, and the uniformity reaches 86%(minimal illumination divided by maximal illumination).
Embodiment two
The present embodiment is the method for operating that the present invention takes turns the lighting source of mould character identification system, specifically comprises the following steps:
S1, the lighting source of first the present invention being taken turns mould character identification system are fixed on the camera head of wheel mould character identification system by connector parts, make the present invention take turns the lighting source of mould character identification system and video camera synchronous axial system and ensure that the axle center of video camera is concentric with the circular hole at center of the present invention;
S2, radian according to wheel mould, by rotating the nut of screw rod on light source, change the radian that the present invention takes turns the lighting source of mould character identification system, makes it and take turns mould radian and match;
S3, the lighting source of by mechanical mechanism the present invention being taken turns mould character identification system adjust to need detection range illuminator level;
S4, switch on power, the present invention takes turns the lighting source of mould character identification system, and video camera starts to gather image, and detection system is started working.
Claims (9)
1. take turns the lighting source of mould character identification system, it is characterized in that, comprise main support, wherein the center of main support is circular hole, and be connected with time support in the both sides of main support, two ends of this support are provided with shell; Main support, secondary support and shell form integral support, and be bonded with resilient materials in this integral support surface coverage, be fixed with LED module in the bottom of shell, this shell is connected with hinge, is connected with screw rod between hinge.
2. the lighting source of wheel mould character identification system as claimed in claim 1, it is characterized in that, the outer surface of described resilient materials scribbles silver color and sprays paint, and inner surface scribbles diffuse reflector.
3. the lighting source of wheel mould character identification system as claimed in claim 1, it is characterized in that, described inner surface of outer cover scribbles diffuse reflector.
4. the lighting source of wheel mould character identification system as claimed in claim 1, it is characterized in that, described LED module comprises LED array, and this LED array becomes certain angle of inclination with shell.
5. the lighting source of the wheel mould character identification system as described in claim 1 or 4, is characterized in that, described LED module bottom surface has louvre.
6. the lighting source of wheel mould character identification system as claimed in claim 1, is characterized in that, passes through rivet interlacement between described main support and secondary support, shell.
7. the lighting source of wheel mould character identification system as claimed in claim 1, it is characterized in that, described hinge is connected by nut and pad with screw rod.
8. the lighting source of wheel mould character identification system as claimed in claim 4, it is characterized in that, described LED array becomes 15-45 degree angle with shell.
9. take turns the method for operating of the lighting source of mould character identification system, it is characterized in that, comprise the following steps:
S1, the lighting source of first the present invention being taken turns mould character identification system are fixed on the camera head of wheel mould character identification system by connector parts, make the present invention take turns the lighting source of mould character identification system and video camera synchronous axial system and ensure that the axle center of video camera is concentric with the circular hole at center of the present invention;
S2, radian according to wheel mould, by rotating the nut of screw rod on light source, change the radian that the present invention takes turns the lighting source of mould character identification system, makes it and take turns mould radian and match;
S3, the lighting source of by mechanical mechanism the present invention being taken turns mould character identification system adjust to need detection range illuminator level;
S4, switch on power, the present invention takes turns the lighting source of mould character identification system, and video camera starts to gather image, and detection system is started working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070755.3A CN104633501B (en) | 2015-02-11 | 2015-02-11 | The lighting source of wheel mould character identification system and operational approach thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070755.3A CN104633501B (en) | 2015-02-11 | 2015-02-11 | The lighting source of wheel mould character identification system and operational approach thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633501A true CN104633501A (en) | 2015-05-20 |
| CN104633501B CN104633501B (en) | 2016-12-07 |
Family
ID=53212561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510070755.3A Expired - Fee Related CN104633501B (en) | 2015-02-11 | 2015-02-11 | The lighting source of wheel mould character identification system and operational approach thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104633501B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781798A (en) * | 1971-12-20 | 1973-12-25 | Goodyear Tire & Rubber | Mechanical reading of tire identification symbols |
| US3930141A (en) * | 1973-10-09 | 1975-12-30 | Yokohama Rubber Co Ltd | Automatic tire classifying apparatus |
| DE10017621A1 (en) * | 2000-03-31 | 2001-10-04 | Reinhart Monz | Identification and positioning of tires of differing dimensions, cross sections, treads and carcasses, exploits inherent optically-detectable features including readable markings |
| JP2010062305A (en) * | 2008-09-03 | 2010-03-18 | Hitachi Displays Ltd | Lighting system, and liquid crystal display device |
| CN102184386A (en) * | 2011-04-22 | 2011-09-14 | 马鞍山马钢华阳设备诊断工程有限公司 | Online wheel identification character recognition method and online wheel identification character detection system |
| CN103234530A (en) * | 2013-04-17 | 2013-08-07 | 江苏晓山信息产业股份有限公司 | City vehicle tire cleanliness detection method and device based on video signals |
| CN103477354A (en) * | 2011-04-12 | 2013-12-25 | 米其林集团总公司 | Method of managing data between an RFID marker carried by a tyre and a sensor carried by a rim |
| CN103925562A (en) * | 2014-03-19 | 2014-07-16 | 瑞仪光电股份有限公司 | frame structure and backlight module |
| CN204403872U (en) * | 2015-02-11 | 2015-06-17 | 广东工业大学 | The lighting source of wheel mould character identification system |
-
2015
- 2015-02-11 CN CN201510070755.3A patent/CN104633501B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3781798A (en) * | 1971-12-20 | 1973-12-25 | Goodyear Tire & Rubber | Mechanical reading of tire identification symbols |
| US3930141A (en) * | 1973-10-09 | 1975-12-30 | Yokohama Rubber Co Ltd | Automatic tire classifying apparatus |
| DE10017621A1 (en) * | 2000-03-31 | 2001-10-04 | Reinhart Monz | Identification and positioning of tires of differing dimensions, cross sections, treads and carcasses, exploits inherent optically-detectable features including readable markings |
| JP2010062305A (en) * | 2008-09-03 | 2010-03-18 | Hitachi Displays Ltd | Lighting system, and liquid crystal display device |
| CN103477354A (en) * | 2011-04-12 | 2013-12-25 | 米其林集团总公司 | Method of managing data between an RFID marker carried by a tyre and a sensor carried by a rim |
| CN102184386A (en) * | 2011-04-22 | 2011-09-14 | 马鞍山马钢华阳设备诊断工程有限公司 | Online wheel identification character recognition method and online wheel identification character detection system |
| CN103234530A (en) * | 2013-04-17 | 2013-08-07 | 江苏晓山信息产业股份有限公司 | City vehicle tire cleanliness detection method and device based on video signals |
| CN103925562A (en) * | 2014-03-19 | 2014-07-16 | 瑞仪光电股份有限公司 | frame structure and backlight module |
| CN204403872U (en) * | 2015-02-11 | 2015-06-17 | 广东工业大学 | The lighting source of wheel mould character identification system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104633501B (en) | 2016-12-07 |
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