CN207802161U - Illumination light filling unit and light compensating apparatus for Tunnel testing image capture apparatus - Google Patents
Illumination light filling unit and light compensating apparatus for Tunnel testing image capture apparatus Download PDFInfo
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- CN207802161U CN207802161U CN201820037107.7U CN201820037107U CN207802161U CN 207802161 U CN207802161 U CN 207802161U CN 201820037107 U CN201820037107 U CN 201820037107U CN 207802161 U CN207802161 U CN 207802161U
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Abstract
The utility model proposes a kind of illumination light filling units and light compensating apparatus for Tunnel testing image capture apparatus, wherein light filling unit includes first light source group, second light source group and image capture apparatus, and first light source group is separately positioned on the both sides of image capture apparatus with second light source group；It is mounted on lampshade in first light source group and second light source group.This is used for the illumination light compensating apparatus of Tunnel testing image capture apparatus；Light compensating apparatus includes the illumination light filling unit that several are used for Tunnel testing image capture apparatus；Several described illumination light filling units for Tunnel testing image capture apparatus are evenly distributed on holder, and holder is parallel with tunnel section；Holder includes fore-stock, middle holder and after-poppet, and fore-stock, middle holder and after-poppet are sequentially being arranged in order each parallel to tunnel section and before, during and after；First light source group is mounted on the fore-stock, and second light source group is mounted on after-poppet, and image capture apparatus is mounted on middle holder.
Description
Technical field
The present invention relates to one kind being used for Tunnel testing technical field, more particularly to a kind of for Tunnel testing image capture dress
The illumination light filling unit and light compensating apparatus set.
Background technology
In recent years, with the fast development of urban construction, the continuous expansion of city size, city underground traffic is peculiar with its
Advantage be rapidly developed, subway tunnel to operation security require it is high, in subway tunnel operation management and maintenance processes,
The fault of construction such as crackle, percolating water etc. for finding and handling tunnel in time is often detected, currently, the structure detection of subway tunnel
Rely primarily on artificial detection means, artificial detection speed is slow, efficiency is low, more and more inadaptable modern subway tunnel detection window when
Between short feature therefore cause the attention of various countries to the research of subway tunnel structure defect fast automatic detecting technology.
When for carrying out fault of construction detection in subway tunnel, using based on camera-shooting scannings such as camera, lasers
Measuring technique, and high-definition image is obtained, by the model calculation to image coordinate to space coordinate, to accurately determine tunnel
The defects of leakage, cracking.And at present the photographic devices such as existing video camera or digital camera when shooting, can utilize light compensating lamp into
Row luminance compensation.The light compensating lamp can be always on when photographic device is photographed, to increase the brightness of environment.But it mends
The luminous intensity that light lamp is exported is fixed, i.e., no matter brighter or than under dark ambient brightness, light filling intensity is all
It is identical, gradation degree and contrast can be caused bad in this way, user's expected effect cannot be reached, seriously affected
The quality of image absorbed.Especially in this dark surrounds in tunnel, and it is even more important for the light filling of image capture apparatus.
Therefore, it is necessary to develop a kind of illumination light filling unit and light compensating apparatus for Tunnel testing image capture apparatus.
Invention content
The present invention proposes one kind and illuminating light filling unit for Tunnel testing image capture apparatus, can effectively solve at present
Illumination when under tunnel environment to image capture and overexposure problem.
In order to solve the above-mentioned technical problem, the technical proposal of the invention is realized in this way：This is used for Tunnel testing image
The illumination light filling unit of acquisition equipment, including first light source group, second light source group and image capture apparatus, the first light source group
The both sides of described image acquisition equipment are separately positioned on second light source group；In the first light source group and the second light source group
It is mounted on lampshade.
Shooting image using above-mentioned technical proposal, in tunnel needs camera to have very high sensitivity, so needing using big
The high-sensitivity camera of pixel；In the horizontal direction, first light source group is arranged with second light source group in described image acquisition equipment
Both sides, by install upper lamp shade, can make first light source group light source and second light source group light source transmitting light projection
To after tunnel wall, the light being reflected back enters camera, and what is formed on camera sensitive chip is the photo of brightness uniformity, no part
Overexposure；It solves under dark condition, camera shoots exposure problems when photo.
Further improvement lies in that the first light source group is symmetricly set on described image acquisition equipment with second light source group
Both sides；The first light source group and the second light source group include at least one light source.By first light source group and second light source
The both sides that group is symmetricly set on image capture apparatus can be such that the overlapping region of light more overlaps, and will not waste light source, Ke Yijie
Save the energy.
Further improvement lies in that the first light source group, the second light source group and the setting of described image acquisition equipment exist
In same horizontal line.When first light source group and second light source group include a light source, then first light source group and second light source
Group is arranged in the same horizontal line with image capture apparatus.
Further improvement lies in that the lampshade is reflector, the lampshade includes upper opening and under shed, the upper opening
It is rectangular under shed；The upper opening is connected between under shed by arc panel.
Further improvement lies in that the reflector is aluminum reflector, the inner surface of lampshade is aluminizer, and surface is by sun
Pole is aoxidized with after matte management, and reflectivity reaches 85% or more, wherein 70% mirror-reflection, 30% diffusing reflection, reflection diffusion full-shape are
50°。
Further improvement lies in that the first light source group and the second light source group are to described image acquisition equipment direction
It tilts 10 ~ 50 ° and tilts 10 ~ 50 ° in terms of image capture apparatus with second light source fine horse by the way that first light source group is arranged, Ke Yigeng
The light that good realization light projection is returned to tunnel wall back reflection enters image capture apparatus, on image capture apparatus sensitive chip
What is formed is the photo of brightness uniformity, no local excessive exposure；It solves under dark condition, when image capture apparatus shoots photo
Exposure problems.
The present invention problem also to be solved is to provide a kind of illumination light filling for Tunnel testing image capture apparatus
Device.
In order to solve the above-mentioned technical problem, the technical scheme is that：This is for Tunnel testing image capture apparatus
Light compensating apparatus is illuminated, which includes that several are used for Tunnel testing figure
As the illumination light filling unit of acquisition equipment；Several described illumination light filling units for Tunnel testing image capture apparatus are uniform
It is distributed on holder, the holder is parallel with tunnel section；The holder includes fore-stock, middle holder and after-poppet, before described
Holder, middle holder and after-poppet are sequentially being arranged in order each parallel to tunnel section and before, during and after；The first light source
Group is mounted on the fore-stock, and the second light source group is mounted on the after-poppet, and described image acquisition equipment is mounted on
On the middle holder.Using above-mentioned technical proposal, several first light source groups are with second light source group according to certain angle of inclination
Arrangement, the value for the determination that angle of inclination is calculated according to object distance, visual field, while rationally designing lampshade shape so that light beam is thrown
After being mapped to tunnel wall, the overlapping region of formation is just slightly larger than the field range of video camera；The part that illumination intersects is exactly most bright
Part, then be the region of mutually confidential shooting, to realize no overexposure phenomenon of taking a picture.
Further improvement lies in that described image acquisition equipment is in be detachably connected with the middle holder, the first light source
Group is in be detachably connected with the after-poppet with the fore-stock and the second light source group.Such setting is both so that image
The angle and first light source group and the angle of second light source group of acquisition equipment can be adjusted, while convenient for the repair of spare and accessory parts
With replacement.
Further improvement lies in that the quantity of the illumination light filling unit for Tunnel testing image capture apparatus is 5 ~ 20
A, correspondingly, the quantity of described image acquisition equipment is 5 ~ 20.
Further improvement lies in that described image acquisition equipment is camera.
Compared with prior art, of the invention to have the advantages that：Several first light source groups and second light source group
It is arranged according to certain angle of inclination, the value for the determination that angle of inclination is calculated according to object distance, visual field, while rationally designing lamp
Hood shape so that after light beam projects tunnel wall, the overlapping region of formation is just slightly larger than the field range of video camera；Illumination is handed over
The part of fork is exactly most bright part, while brightness uniformity, then is the region of mutually confidential shooting, to realize no mistake of taking a picture
Degree exposure phenomenon.
Description of the drawings
Fig. 1 is the structure under the illumination light filling unit 1.6m visual fields for Tunnel testing image capture apparatus of the present invention
Figure；
The structure chart of the lampshade of the illumination light filling unit for Tunnel testing image capture apparatus of the positions Fig. 2 present invention；
Fig. 3 is the structure chart of the illumination light compensating apparatus for Tunnel testing image capture apparatus of the present invention；
Fig. 4 is the visual field structure of the camera of the illumination light compensating apparatus for Tunnel testing image capture apparatus of the present invention
Figure；
Fig. 5 is the visual field knot of the light filling unit of the illumination light compensating apparatus for Tunnel testing image capture apparatus of the present invention
Composition；
Wherein：1- first light source groups；2- second light source groups；3- image capture apparatus；4- lampshades；It is open on 401-；402-
Under shed；403- arc panels；5- holders；501- fore-stocks；Holder in 502-；503- after-poppets；504- mounting rods.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present invention figure, technical solution in the embodiment of the present invention carries out clear
Chu, complete description.
Embodiment 1：As Figure 1-Figure 5, the illumination light filling unit for being used for Tunnel testing image capture apparatus, including the
One light source group 1, second light source group 2 and image capture apparatus 3, the first light source group 1 are separately positioned on institute with second light source group 2
State the both sides of image capture apparatus 3；It is mounted on lampshade 4 in the first light source group 1 and the second light source group 2；Described
One light source group 1 is symmetricly set on the both sides of described image acquisition equipment 3 with second light source group 2；It is the first light source group 1, described
Second light source group 2 and the setting of described image acquisition equipment 3 are in the same horizontal line；The first light source group 1 and second light
Source group 2 includes at least one light source；The light source is all made of LED light, and the lampshade 4 is reflector, and the lampshade 4 includes upper
Opening 401 and under shed 402, the upper opening 401 and under shed 402 are rectangular；The upper opening 401 and under shed 402
Between be connected by arc panel 403；The light source is fixed in opening 401, is passed light through under shed 402 and is projected outward；
The first light source group 1 and the second light source group 2 tilt 10 ~ 50 °, wherein image to 3 direction of described image acquisition equipment
Acquisition equipment uses camera, and shooting image in tunnel needs camera to have very high sensitivity, so needing the height using big pixel
Sensitivity camera；Lampshade 4 is aluminum reflector, and the inner surface of lampshade is aluminizer, and anodic oxidation and matte management are passed through in surface
Afterwards, reflectivity reaches 85% or more, wherein 70% mirror-reflection, 30% diffusing reflection, reflection diffusion full-shape is 50 °, the under shed of lampshade
402 sizes are 96*90mm, and upper opening the distance between 401 and under shed 402 are 96mm；In the horizontal direction, first light source group
1 is symmetricly set on the both sides of described image acquisition equipment 3 with second light source group 2, by installing upper lamp shade 4, can make the first light
After the light source of source group 1 and the light of the light source transmitting of second light source group 2 project tunnel wall, the light being reflected back enters camera,
What is formed on camera sensitive chip is the photo of brightness uniformity, no local excessive exposure；It solves under dark condition, camera is clapped
Take the photograph exposure problems when photo.
Embodiment 2：The illumination light compensating apparatus for being used for Tunnel testing image capture apparatus includes 7 and is used for Tunnel testing figure
As the illumination light filling unit of acquisition equipment；Several described illumination light filling units for Tunnel testing image capture apparatus are uniform
It is distributed on holder 5, the holder 5 is parallel with tunnel section；Several mounting rods 504, the installation are provided on the holder 5
The direction that bar 504 is arranged includes fore-stock 501, middle holder 502 and after-poppet 503 perpendicular to the section in tunnel, the holder 5,
The fore-stock 501, middle holder 502 and after-poppet 503 are sequentially being arranged successively each parallel to tunnel section and before, during and after
Row；The first light source group 1 is mounted on the fore-stock 501, and the second light source group 2 is mounted on the after-poppet 503,
Described image acquisition equipment 3 is mounted on the middle holder 502；Described image acquisition equipment 3 passes through peace with the middle holder 502
Dress bar 504 and bolt are in be detachably connected, the first light source group 1 and the fore-stock 501 and the second light source group 2 and institute
It is in be detachably connected by mounting rod 504 and bolt to state after-poppet 503；The photograph for Tunnel testing image capture apparatus
The quantity of visible subsidy light unit is 7, and correspondingly, the quantity of described image acquisition equipment is 7；Described image acquisition equipment 3 is
Camera；In camera both sides, 32 light sources are set in total；The light source is all made of LED light, and LED light is stroboscopic lamp, and flash time is
80us, 20Hz；Image capture apparatus is 2.2m with a distance from tunnel wall, several first light source groups 1 and second light source group 2 according to
Certain angle of inclination arrangement, the value for the determination that angle of inclination is calculated according to object distance, visual field, while rationally designing lamp cover shaped
Shape so that after light beam projects tunnel wall, the overlapping region of formation is just slightly larger than the field range of video camera；What illumination intersected
Part is exactly most bright part, then is the region of mutually confidential shooting；In shooting process, over-exposed band is because reflection, bright
Low area is spent because of diffusion；Therefore in the illumination light filling unit designed for Tunnel testing image capture apparatus, increase lamp with
Camera distance and inclination angle make all diffused lights into camera, and reflective tape is photosensitive in camera to realize outside field range
What is formed on chip is the photo of brightness uniformity, realizes and is exposed without local excessive.
In addition, needing camera to have very high sensitivity the image capture apparatus for shooting image in tunnel, so needing
Using the high-sensitivity camera of big pixel；Precision prescribed reaches 0.5mm when photographic subjects, can be subtracted using the camera of big resolution ratio
The sum of few camera, enormously simplifies the difficulty that equipment mounting frame is set.Thus the camera selected is CL2000, and resolution ratio can reach
To 5120*3840, Pixel size 7um；After camera determines, mirror is selected according to shooting distance, visual field size and required precision
Head；The distance of camera to wall is 2.2m；7 cameras need the ranging from 12m shot, the field range of an average camera to want
More than 2m；The chip size 35.84mm*26.88mm of camera；Relationship between viewing field of camera, distance and focal length as shown in figure 5,
Lens focus, visual field size and camera lens are as follows to object distance calculation formula：
f=wL/W； f=hL/H
Wherein：F --- lens focus；W --- picture traverse refers to imaging width of the subject on CCD；W --- quilt
Take the photograph object width；Distance of L --- the subject to camera lens；H --- picture altitude, refer on subject to CCD at image height
Degree；H --- subject height；When L is constant, and H or W increase, f becomes smaller, and when H or W are constant, and L increases, f increases.
Ensureing precision（Details is differentiated to 0.5mm）On the basis of, focal length is calculated, camera lens is selected.
If selecting 35mm camera lenses according to calculating, it is contemplated that need certain fusion band, at least need 7 cameras that could expire
Foot requires.If selecting 28mm camera lenses, can reach single camera visual field size is 2.5 meters, it is only necessary to which 6 cameras can be completed
Shooting.
Quantity about LED light source：In order to take clearly image in dim environment, need sufficiently strong
Illumination light, therefore select 32 illuminations be respectively symmetrically erected at camera both sides, illuminate the part of intersection（Most bright region）
It is exactly the region of mutually confidential shooting；If 16 illuminations per side are evenly distributed, every 13 degree of a set of illuminations of arrangement, the hair of illumination
Scattered angle is about 50 degree, so the illumination for being intended to shooting area is all superimposed out, disclosure satisfy that the requirement to illumination intensity.Each regard
Single field areas is formed by stacking by three-beam, and two rows of lights project the same area by certain inclination angle, and a total of 6 beam is folded
Add；In vertical direction, 54 ° of viewing field of camera angle, lampshade visual angle is designed as being slightly larger than 54 °；In horizontal direction, 42 ° of viewing field of camera angle,
Lampshade visual angle is designed as being slightly larger than 42 °.Since the decaying of light is linear, formula is I '=Ie^ (- μ d), and wherein I is luminous intensity,
μ is the linear attenuation coefficient of light in the medium, and d is light path, and e is the natural logrithm truth of a matter.ε is photon energy, and I ε are exactly light beam
Energy；Attenuation coefficient is about 10-6/km, 20 ~ 30cm of the depth of field to light in air, therefore optical attenuation is negligible；Wherein LED light
COB light source light-emitting surface size be 60*60mm, the maximum power of output is 1000W, and bright maximum intensity can reach light-emitting surface and be
23000lm must trigger pattern in TTL when work, cannot be always on work, therefore be set as dodging frequency lamp since power is excessive, when
When setting flash time is 80us, when flash frequency is 20Hz, COB light source actual power is less than 2W.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to restrict the invention, all essences in the present invention
With within principle, any modification, equivalent substitution, improvement and etc. done should all be included in the protection scope of the present invention god.
Claims (10)
1. a kind of illumination light filling unit for Tunnel testing image capture apparatus, which is characterized in that including first light source group,
Two light source groups and image capture apparatus, the first light source group are separately positioned on described image acquisition equipment with second light source group
Both sides；It is mounted on lampshade in the first light source group and the second light source group.
2. the illumination light filling unit according to claim 1 for Tunnel testing image capture apparatus, which is characterized in that institute
It states first light source group and is symmetricly set on the both sides of described image acquisition equipment with second light source group；The first light source group and described
Second light source group includes at least one light source.
3. the illumination light filling unit according to claim 2 for Tunnel testing image capture apparatus, which is characterized in that institute
State first light source group, the second light source group and the setting of described image acquisition equipment in the same horizontal line.
4. the illumination light filling unit according to claim 1 for Tunnel testing image capture apparatus, which is characterized in that institute
It is reflector to state lampshade, and the lampshade includes upper opening and under shed, and the upper opening and under shed are rectangular；It is opened on described
Mouth is connected between under shed by arc panel.
5. the illumination light filling unit according to claim 4 for Tunnel testing image capture apparatus, which is characterized in that institute
It is aluminum reflector to state reflector, and the inner surface of lampshade is aluminizer, and anodic oxidation and matte management are passed through in surface.
6. the illumination light filling unit according to claim 1 for Tunnel testing image capture apparatus, which is characterized in that institute
It states first light source group and the second light source group and tilts 10~50 ° to described image acquisition equipment direction.
7. a kind of illumination light compensating apparatus for Tunnel testing image capture apparatus, which is characterized in that described to be used for Tunnel testing
The illumination light compensating apparatus of image capture apparatus includes several, and such as claim 1-6, any one is filled for Tunnel testing image capture
The illumination light filling unit set；Several described illumination light filling units are evenly distributed on holder, and the holder is flat with tunnel section
Row.
8. illumination light compensating apparatus according to claim 7, which is characterized in that the holder include fore-stock, middle holder and
After-poppet, the fore-stock, middle holder and after-poppet are sequentially being arranged in order each parallel to tunnel section and before, during and after；
The first light source group is mounted on the fore-stock, and the second light source group is mounted on the after-poppet, and described image is caught
Device is obtained on the middle holder.
9. the illumination light compensating apparatus according to claim 8 for Tunnel testing image capture apparatus, which is characterized in that institute
It is in be detachably connected that image capture apparatus, which is stated, with the middle holder, the first light source group and the fore-stock and second light
Source group is in be detachably connected with the after-poppet.
10. the illumination light compensating apparatus for Tunnel testing image capture apparatus according to claim 7 or 9, feature exist
In the quantity of the illumination light filling unit for Tunnel testing image capture apparatus is 5~20, correspondingly, described image
The quantity of acquisition equipment is 5~20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820037107.7U CN207802161U (en) | 2018-01-10 | 2018-01-10 | Illumination light filling unit and light compensating apparatus for Tunnel testing image capture apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820037107.7U CN207802161U (en) | 2018-01-10 | 2018-01-10 | Illumination light filling unit and light compensating apparatus for Tunnel testing image capture apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN207802161U true CN207802161U (en) | 2018-08-31 |
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ID=63278560
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820037107.7U Active CN207802161U (en) | 2018-01-10 | 2018-01-10 | Illumination light filling unit and light compensating apparatus for Tunnel testing image capture apparatus |
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|---|---|
| CN (1) | CN207802161U (en) |
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2018
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Effective date of registration: 20200630 Address after: No.5014-112, 5 / F, No.36, Haidian Street, Haidian District, Beijing 100080 Patentee after: Kuanyan (Beijing) Technology Development Co.,Ltd. Address before: 210012 Room 203, Huaxi Securities Building, 9 Yuhua East Road, Yuhuatai District, Nanjing, Jiangsu. Patentee before: NANJING HUOYANHOU INFORMATION TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220324 Address after: 055350 west of Fuyang street and south of Baoxin logistics in Longyao County Economic Development Zone (North District), Xingtai City, Hebei Province Patentee after: Kuanyan (Hebei) Intelligent Equipment Co.,Ltd. Address before: No. 5014-112, floor 5, No. 36, Haidian Street, Haidian District, Beijing 100080 Patentee before: Kuanyan (Beijing) Technology Development Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Illumination fill light unit and fill light device for tunnel detection image capture device Effective date of registration: 20220805 Granted publication date: 20180831 Pledgee: Hebei Xingtai Rural Commercial Bank Co., Ltd. Longyao Sub-branch Pledgor: Kuanyan (Hebei) Intelligent Equipment Co.,Ltd. Registration number: Y2022320000438 |
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Date of cancellation: 20230829 Granted publication date: 20180831 Pledgee: Hebei Xingtai Rural Commercial Bank Co.,Ltd. Longyao Sub branch Pledgor: Kuanyan (Hebei) Intelligent Equipment Co.,Ltd. Registration number: Y2022320000438 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of utility model: Lighting fill unit and fill device for tunnel detection image capture device Effective date of registration: 20230901 Granted publication date: 20180831 Pledgee: Hebei Xingtai Rural Commercial Bank Co.,Ltd. Longyao Sub branch Pledgor: Kuanyan (Hebei) Intelligent Equipment Co.,Ltd. Registration number: Y2023320000444 |