CN108332084B - Light source device of tunnel detection platform and light source distribution method thereof - Google Patents
Light source device of tunnel detection platform and light source distribution method thereof Download PDFInfo
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- CN108332084B CN108332084B CN201710034800.9A CN201710034800A CN108332084B CN 108332084 B CN108332084 B CN 108332084B CN 201710034800 A CN201710034800 A CN 201710034800A CN 108332084 B CN108332084 B CN 108332084B
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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
- F21S4/00—Lighting devices or systems using a string or strip of light sources
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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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
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- Life Sciences & Earth Sciences (AREA)
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- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention relates to the technical field of tunnel detection equipment, in particular to a tunnel detection platform light source device and a light source distribution method thereof. The light source device of the tunnel detection platform can adjust the circle center of the light source belt together when adjusting the circle center of the industrial area array CCD camera, so that more uniform light belt distribution is achieved.
Description
Technical Field
The invention relates to the technical field of tunnel detection equipment, in particular to a tunnel detection platform light source device and a light source distribution method thereof.
Background
In the subway operation process, the tunnel structure mainly made of concrete materials has the phenomena of cracks, falling, water leakage and the like, which cannot be avoided, and the tunnel structure has a huge threat to the safety of the tunnel in the long-term development of diseases. Therefore, maintenance of the tunnel structure in subway operation is regarded as a necessary means for long-term safe operation of the account-reporting tunnel, and detection of tunnel defects is the basis of tunnel maintenance. The traditional subway tunnel defect is mainly detected manually and is assisted by detection equipment. Especially on the false side of the surface diseases of the subway tunnel, the observation is completely dependent on naked eyes of people, and the observation is the same at home and abroad. Manual inspection, with subjectivity on the one hand; on the other hand, in the case of large workload, people cannot get in the face, and diseases are likely to be missed. In recent years, the structure maintenance of tunnels at home and abroad is increasingly important, and tunnel detection equipment based on different principles is developed successively. Most subway tunnel disease detection sensors in the present stage adopt industrial cameras, which are commonly called as video cameras, and compared with the traditional civil cameras, the industrial cameras in the market are mostly cameras based on CCD or CMOS chips, and have high image stability, high transmission capacity, high anti-interference capacity and the like. Because light in the tunnel is dim, the intensity is insufficient, the effective data acquisition requirement of an industrial camera cannot be met generally, the camera cannot be supplemented with light very well even when the camera is used in a real stage, the photographed photo is different in brightness, various problems are caused in the analysis processing process, and diseases are easy to miss and misinformation, so that the reliability and accuracy of the whole system are affected. In addition, due to the fact that tunnel sections are different, when the fixed light source is adopted and enters tunnels with different section diameters, the center of the light source is offset, bright light spots are generated, and camera data acquisition is affected.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a tunnel detection platform light source device and a light source distribution method thereof, which can better supplement light for a detection device and improve the accuracy of data acquisition.
In order to achieve the purpose of the invention, the technical scheme adopted is as follows:
the light source device of the tunnel detection platform comprises a fan-shaped positioning frame, wherein a plurality of fan-shaped light source boxes are arranged on the fan-shaped positioning frame, the light source boxes are spliced into an arc-shaped light source belt and fixed by the fan-shaped positioning frame, the fan-shaped positioning frame is fixed on a bracket, the bracket is slidably mounted on a locking frame, the light source boxes on the bracket follow-up with a data acquisition device, the data acquisition device comprises a lifting table and a detection device mounted on the lifting table, the bracket is fixedly connected with the lifting table through a linkage rod, and the light source boxes on the bracket and the detection device on the lifting table synchronously move vertically.
The bracket is provided with a supporting plate, and the supporting plate is provided with a light source control box.
The COB light source is arranged in the light source box, the light source box is also provided with the lamp shade, grooves are formed in two sides of the lamp shade of the light source box, the lamp shade is spliced and combined into a light band by the grooves, the lamp shade is made of alloy aluminum materials, and the reflecting surface of the lamp shade is subjected to nano spraying treatment.
The detection device comprises a fan-shaped bracket, a plurality of tray boxes distributed in a fan shape and fusion lasers are arranged on the fan-shaped bracket, the tray boxes are slidably arranged on the fan-shaped bracket, an industrial area array CCD camera, a laser range finder and an inertial navigator are integrally arranged in the tray boxes, the distribution angles of two adjacent tray boxes ensure that the overlapping distance of the visual fields of the industrial area array CCD camera is not less than 20cm arc length, and the fusion lasers are arranged between the two adjacent tray boxes and are used for acquiring positioning marks for photo fusion processing.
The tray box comprises a chassis and an end cover arranged on the chassis, wherein an integrated mounting plate is arranged in the chassis, a connecting lug extends inwards from the upper edge of the chassis, the integrated mounting plate is screwed on the connecting lug, and an anti-seismic fitting is arranged between the integrated mounting plate and the connecting lug.
The tray box is arranged between the two fan-shaped brackets, the two ends of the tray box are provided with the sliding blocks, the inner side surfaces of the two fan-shaped brackets are respectively provided with a guide rail matched with the sliding blocks, and the guide rails are also provided with guide rail clamps for positioning the tray box.
A plurality of connecting plate pieces are further arranged between the two fan-shaped brackets, two ends of each connecting plate piece are respectively screwed on the inner side faces of the two fan-shaped brackets, one connecting plate piece is arranged between every two adjacent tray boxes, and the fusion laser is installed on each connecting plate piece.
The light source devices are two groups and are symmetrically distributed on two sides of the data acquisition device.
The invention also provides a light source distribution method of the tunnel detection platform light source device, which is used for the tunnel detection platform light source device and comprises the following steps: a. providing 32 sets of light source boxes with COB light sources inside, splicing 16 sets of light source boxes into an arc-shaped light source belt through a lampshade groove, fixing the arc-shaped light source belt by using a fan-shaped locating frame, a bracket and a locking frame, and symmetrically distributing the two sets of light source boxes on two sides of a data acquisition device; b. the circle center of the arc-shaped light source belt formed by each group of light source boxes and the circle center of the tunnel are arranged on the same axis, and the distance between the arc-shaped light source belt and the inner wall of the tunnel is 2 meters; c. and enabling the outer sides of points where the edges of the field angle of the industrial area array CCD camera in each tray box and the arc-shaped light source belt intersect to correspond to one set of light source box respectively.
The tunnel detection platform light source device and the light source distribution method thereof have the beneficial effects that: the light source device of the tunnel detection platform can adjust the circle center of the industrial area array CCD camera and the linkage rod can also adjust the circle center of the light source belt at the same time, so that more uniform light belt distribution is achieved.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic structural view of a light source device of the present embodiment;
fig. 2 is a schematic structural view of a fan-shaped positioning frame of the present embodiment;
fig. 3 is a schematic structural view of a lampshade of the embodiment;
fig. 4 is a schematic view of the mounting structure of the light source device of the present embodiment;
fig. 5 is a schematic structural view of the detecting device of the present embodiment;
fig. 6 is a schematic diagram of a light source distribution structure of the present embodiment.
Wherein: fan-shaped locating rack 1, light source box 2, bracket 3, locking frame 4, gangbar 5, lamp shade 6, tray box 7, elevating platform 8, fan-shaped bracket 9, connection plate 10.
Detailed Description
In the description of the present invention, it should be understood that the terms "radial," "axial," "upper," "lower," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in fig. 1-5, the light source device of the tunnel detection platform of the embodiment comprises a fan-shaped positioning frame 1, a plurality of fan-shaped distributed light source boxes 2 are arranged on the fan-shaped positioning frame 1, the plurality of light source boxes 2 are spliced into an arc-shaped light source belt and are fixed by the fan-shaped positioning frame 1, the fan-shaped positioning frame 1 is used for mounting and positioning the light source boxes 2, the uniformity of light belt distribution is ensured, preferably, the fan-shaped positioning frame 1 is made of alloy aluminum materials, the weight of the whole device is reduced on the premise of meeting high rigidity, and the fan-shaped positioning frame 1 is formed by splicing and mounting sheet metal parts, so that the structure is simple and the mounting is firm and stable. The fan-shaped locating frame 1 is fixed on the bracket 3, the bracket 3 is used as a main body supporting fixing frame of the light source device, the integral rigidity and strength are guaranteed, the bracket 3 is connected by punching and installing standard sectional materials, and the design and manufacturing cost is reduced. The bracket 3 is slidably arranged on the locking frame 4, the locking frame 4 locks the bracket 3 after the circle center of the arc-shaped light source belt is adjusted, and the locking frame 4 is processed by adopting high-strength high-rigidity standard profiles.
The light source box 2 on the bracket 3 can follow up with the data acquisition device in the unlocking state, and concretely, the data acquisition device comprises a lifting table 8 and a detection device arranged on the lifting table 8, the bracket 3 is fixedly connected with the lifting table 8 through a linkage rod 5, and the light source box 2 on the bracket 3 and the detection device on the lifting table 8 synchronously move vertically, so that the circle center of an arc light source belt is regulated together when the circle center of the detection device is regulated, and more uniform light band distribution is achieved.
The bracket 3 of this embodiment is equipped with the layer board on, be equipped with the light source control box on the layer board, the light source control box is used for controlling the light source in the light source box 2, be equipped with the COB light source in the light source box 2, still be equipped with lamp shade 6 on the light source box 2, lamp shade 6 both sides of light source box 2 have the recess, lamp shade 6 is with the help of the concatenation of recess combination light tape, lamp shade 6 adopts the alloy aluminium material to make, have characteristics such as light in weight, intensity is high, the lamp shade 6 reflection of light face adopts nanometer spraying to handle, nanometer coating reflectivity can be more than 96%, diffuse reflectance is high to about 94%, the light utilization ratio has been improved greatly.
The detection device of the embodiment comprises a fan-shaped bracket 9, a plurality of fan-shaped distributed tray boxes 7 and fusion lasers are arranged on the fan-shaped bracket 9, the tray boxes 7 are slidably mounted on the fan-shaped bracket 9, an industrial area array CCD camera, a laser range finder and an inertial navigator are integrally mounted in the tray boxes 7, the industrial area array CCD camera is used for collecting tunnel surface disease image data, the laser range finder is used for measuring the distance between the industrial area array CCD camera and the tunnel surface, the inertial navigator is used for monitoring vibration data of the tray boxes 7 in the moving process, the fusion lasers acquire positioning marks of photo fusion processing positions, the distribution angles of two adjacent tray boxes 7 ensure that the field of view coincidence distance of the industrial area array CCD camera is not less than 20cm arc length, the fusion lasers are mounted between the two adjacent tray boxes 7, and the fusion lasers are used for acquiring positioning marks of photo fusion processing.
Wherein, tray box 7 includes the chassis and installs the end cover on the chassis, is equipped with integrated mounting panel in the chassis, and the inward engaging lug that extends of upper edge of chassis, integrated mounting panel spiro union is connected on the engaging lug, is equipped with antidetonation accessory between integrated mounting panel and the engaging lug. The tray box 7 is installed between two fan-shaped brackets 9, and the both ends of tray box 7 are equipped with the slider, all are equipped with on the medial surface of two fan-shaped brackets 9 with slider complex guide rail, still are equipped with the guide rail binding clip that fixes a position tray box 7 on the guide rail, can lock the position of tray box 7 through the guide rail binding clip.
A plurality of connecting plate pieces 10 are further arranged between the two fan-shaped brackets 9, two ends of each connecting plate piece 10 are respectively screwed on the inner side surfaces of the two fan-shaped brackets 9, one connecting plate piece 10 is arranged between every two adjacent tray boxes 7, and a fusion laser is arranged on each connecting plate piece 10.
The light source devices in this embodiment are two groups and symmetrically distributed on two sides of the data acquisition device.
The light source band formed by the COB light source in this embodiment is a circular light spot with a radius of about 1 meter, and the brightest spot center is the brightest, and the farther from the spot center, the lower the brightness and the nonlinear distribution can be obtained at an object distance of 2 meters. The field of view of a single industrial area array CCD camera is rectangular with the tunnel cross section direction of 2.1 meters and the tunnel direction of 1.6 meters. By combining the COB integrated light source characteristics of the embodiment, the light spot centers of all the light sources are required to be beaten on four corners of the view field, and the uniformity of light filling is realized by overlapping the light sources far away from the light spot centers. In order to better ensure the data acquisition precision of the industrial area array CCD camera, the embodiment also provides a light source distribution method of a light source device of a tunnel detection platform, which is shown in fig. 6, and comprises the following steps: a. providing 32 sets of light source boxes 2 with COB light sources inside, splicing 16 sets of light source boxes 2 into an arc-shaped light source belt through grooves of a lampshade 6, fixing the arc-shaped light source belt by using a fan-shaped positioning frame 1, a bracket 3 and a locking frame 4, and symmetrically distributing the two sets of light source boxes 2 on two sides of a data acquisition device; b. the circle center of the arc-shaped light source belt formed by each group of light source boxes 2 and the circle center of the tunnel are arranged on the same axis, and the distance between the arc-shaped light source belt and the inner wall of the tunnel is 2 meters; c. the outside of the point where the edge of the field angle of the industrial area array CCD camera in each tray box 7 is intersected with the arc-shaped light source belt corresponds to one set of light source boxes 2.
Through the mode, the circle centers of the industrial area array CCD camera, the light source belt circle centers and the circle centers of the tunnels are on the same straight line, and the light spot centers of the light sources can be beaten on four corners of the field of view of the industrial area array CCD camera, so that light is better supplemented, and the linkage rod 5 can adjust the light source belt circle centers together while adjusting the circle centers of the industrial area array CCD camera, so that more uniform light belt distribution is achieved.
It should be understood that the above-described specific embodiments are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications which extend from the spirit of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides a tunnel detection platform light source device which characterized in that: the light source device comprises a fan-shaped positioning frame (1), wherein a plurality of fan-shaped light source boxes (2) are arranged on the fan-shaped positioning frame (1), the light source boxes (2) are spliced into an arc-shaped light source belt and are fixed by the fan-shaped positioning frame (1), the fan-shaped positioning frame (1) is fixed on a bracket (3), the bracket (3) is slidably mounted on a locking frame (4), the light source boxes (2) on the bracket (3) follow up with a data acquisition device, the data acquisition device comprises a lifting table (8) and a detection device mounted on the lifting table (8), the bracket (3) is fixedly connected with the lifting table (8) through a linkage rod (5), and the light source boxes (2) on the bracket (3) and the detection device on the lifting table (8) synchronously move vertically;
the COB light source is arranged in the light source box (2), the light source box (2) is also provided with a lampshade (6), grooves are formed in two sides of the lampshade (6) of the light source box (2), and the lampshade (6) is spliced and combined into a light band by the aid of the grooves;
the detection device comprises a fan-shaped bracket (9), a plurality of fan-shaped distributed tray boxes (7) and fusion lasers are arranged on the fan-shaped bracket (9), the tray boxes (7) are slidably mounted on the fan-shaped bracket (9), an industrial area array CCD camera, a laser range finder and an inertial navigator are integrally mounted in the tray boxes (7), the distribution angles of two adjacent tray boxes (7) ensure that the overlapping distance of the visual fields of the industrial area array CCD camera is not less than 20cm arc length, and the fusion lasers are mounted between the two adjacent tray boxes (7) and are used for obtaining positioning marks for photo fusion processing;
the light source devices are two groups and symmetrically distributed on two sides of the data acquisition device, the lampshade (6) is made of alloy aluminum materials, and the reflecting surface of the lampshade (6) is subjected to nanometer spraying treatment.
2. The tunnel inspection platform light source device according to claim 1, wherein: the bracket (3) is provided with a supporting plate, and the supporting plate is provided with a light source control box.
3. The tunnel inspection platform light source device according to claim 1, wherein: the tray box (7) comprises a chassis and an end cover arranged on the chassis, an integrated mounting plate is arranged in the chassis, a connecting lug extends inwards from the upper edge of the chassis, the integrated mounting plate is screwed onto the connecting lug, and an anti-seismic fitting is arranged between the integrated mounting plate and the connecting lug.
4. A tunnel inspection platform light source device according to claim 3, wherein: the tray box (7) is installed between the two fan-shaped brackets (9), sliding blocks are arranged at two ends of the tray box (7), guide rails matched with the sliding blocks are arranged on the inner side surfaces of the two fan-shaped brackets (9), and guide rail clamps for positioning the tray box (7) are further arranged on the guide rails.
5. The tunnel inspection platform light source device according to claim 4, wherein: a plurality of connecting plate pieces (10) are further arranged between the two fan-shaped brackets (9), two ends of each connecting plate piece (10) are respectively screwed on the inner side surfaces of the two fan-shaped brackets (9), one connecting plate piece (10) is arranged between every two adjacent tray boxes (7), and the fusion laser is installed on each connecting plate piece (10).
6. A light source distribution method of a tunnel inspection platform light source device, which is used for the tunnel inspection platform light source device according to claim 1, and is characterized in that: the method comprises the following steps: a. providing 32 sets of light source boxes (2) with COB light sources inside, splicing 16 sets of light source boxes (2) into an arc-shaped light source belt through grooves of a lampshade (6), fixing the arc-shaped light source belt by using a fan-shaped locating frame (1), a bracket (3) and a locking frame (4), and symmetrically distributing the two sets of light source boxes (2) on two sides of a data acquisition device; b. the circle center of the arc-shaped light source belt formed by each group of light source boxes (2) and the circle center of the tunnel are arranged on the same axis, and the distance between the arc-shaped light source belt and the inner wall of the tunnel is 2 meters; c. and enabling the outer sides of points where the edges of the field angle of the industrial area array CCD camera in each tray box (7) and the arc-shaped light source belts intersect to correspond to a set of light source boxes (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034800.9A CN108332084B (en) | 2017-01-17 | 2017-01-17 | Light source device of tunnel detection platform and light source distribution method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710034800.9A CN108332084B (en) | 2017-01-17 | 2017-01-17 | Light source device of tunnel detection platform and light source distribution method thereof |
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| CN108332084A CN108332084A (en) | 2018-07-27 |
| CN108332084B true CN108332084B (en) | 2023-10-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318490A (en) * | 2017-01-17 | 2018-07-24 | 南京熊猫信息产业有限公司 | A kind of tunnel defect detection device |
| CN109186546A (en) * | 2018-09-10 | 2019-01-11 | 汪俊 | Tunnel defect feature detection system and method |
| CN109540910A (en) * | 2018-12-27 | 2019-03-29 | 沈阳工业大学 | A kind of tunnel defect image collecting device with automatic shooting function |
| CN116592246B (en) * | 2023-07-17 | 2023-09-26 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Portable tunnel lining gridding precision inspection equipment |
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