CN210720194U - Tunnel inspection image acquisition device and tunnel inspection system - Google Patents
Tunnel inspection image acquisition device and tunnel inspection system Download PDFInfo
- Publication number
- CN210720194U CN210720194U CN201921669806.4U CN201921669806U CN210720194U CN 210720194 U CN210720194 U CN 210720194U CN 201921669806 U CN201921669806 U CN 201921669806U CN 210720194 U CN210720194 U CN 210720194U
- Authority
- CN
- China
- Prior art keywords
- tunnel
- ccd cameras
- computer
- image acquisition
- acquisition device
- 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.)
- Active
Links
Images
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model discloses an image acquisition device and tunnel system of patrolling and examining are patrolled and examined in tunnel, this image acquisition device includes: the CCD cameras and the auxiliary light source are fixed on the fixed support, wherein the fixed positions of the CCD cameras are located on the same circular ring, the center of the circular ring is located at the circle center of the tunnel under the working state, so that the distance between the CCD cameras and the tunnel lining surface is consistent, and the whole shooting angle of the CCD cameras covers the range of the tunnel lining surface. This tunnel system of patrolling and examining, patrol and examine the image acquisition device with the tunnel and pass through the setting on mobile platform that detects a flaw to cooperation computer, display, synchronous encoder, data collection station carry out synchronous shooting, disease discernment, splice in real time and the demonstration in tunnel. The utility model has the technical characteristics of detection range is big, detection speed is fast, the timeliness is high.
Description
Technical Field
The utility model belongs to the technical field of the tunnel is detected a flaw, especially, relate to a tunnel is patrolled and examined image acquisition device and tunnel and is patrolled and examined system.
Background
With the rapid development of the Chinese railway and urban rail transit, the problems of cracking, leakage, cable leakage and the like in the tunnel are inevitable. The problems can seriously affect the running safety of railways and rail traffic, so the tunnel inspection work is particularly important.
At present, the inspection work of domestic tunnels mainly depends on manual work, which causes the problems of low overall efficiency, low accuracy, easy omission, long time consumption and the like of the inspection work of the tunnels at present. Most of the existing automatic intelligent inspection devices are used for large-scale flaw detection vehicles, the structures of the large-scale flaw detection vehicles are complex, the cost is high, the detection range is only 180 degrees at most, particularly, the timeliness of the existing tunnel inspection flaw detection vehicles is not high, tunnel image acquisition is firstly needed, all images of a tunnel are collected, tunnel image processing and flaw point detection are carried out on a background platform, and after a flaw is found, departments such as maintenance and the like are informed to carry out processing, so that the period of tunnel inspection and post processing is very long.
SUMMERY OF THE UTILITY MODEL
The technical purpose of the utility model is to provide an image acquisition device and tunnel system of patrolling and examining are patrolled and examined in tunnel has simple structure, detection range is big, the technical characterstic that the timeliness is high.
In order to solve the above problem, the technical scheme of the utility model is that:
the utility model provides an image acquisition device is patrolled and examined in tunnel, is applied to the image acquisition of tunnel lining face, includes: the CCD camera and the auxiliary light source are fixed on the fixed support; the fixed positions of the CCD cameras are located on the same circular ring, the center of the circular ring is located at the circle center of the tunnel under the working state, so that the distance between the CCD cameras and the tunnel lining surface is consistent, and the whole shooting angle of the CCD cameras covers the range of the tunnel lining surface.
Further preferably, the CCD camera and the auxiliary light source are sequentially fixed to the fixing bracket at intervals.
Further preferably, the photographing angles between the adjacent CCD cameras partially overlap.
Further preferred, the fixed bolster includes chassis, fixed block, a plurality of bracing piece, chassis and fixed block fixed connection, the one end and the fixed block fixed connection of bracing piece, the other end and CCD camera or auxiliary light source fixed connection of bracing piece.
Further preferably, the auxiliary light source is an LED area array light source.
The utility model also provides a tunnel inspection system, which comprises a flaw detection mobile platform used for advancing on the steel rail, a computer, a display, a synchronous encoder, a data acquisition unit and the tunnel inspection image acquisition device, wherein the computer, the display, the synchronous encoder and the data acquisition unit are arranged on the flaw detection mobile platform; the fixed support is arranged on the flaw detection moving platform, and the centers of the circular rings where the CCD cameras are located at the circle center of the tunnel in a working state so as to ensure that the distances between the CCD cameras and the inner lining surface of the tunnel are consistent; the synchronous encoder is respectively electrically connected with the CCD cameras and the auxiliary light sources and used for sending synchronous pulse signals at fixed intervals to trigger the plurality of CCD cameras and the plurality of auxiliary light sources to synchronously work according to the displacement of the flaw detection mobile platform; the data acquisition unit is respectively electrically connected with the plurality of CCD cameras and the synchronous encoder and is used for acquiring tunnel lining images shot by the CCD cameras and numbering the tunnel lining images by combining the synchronous encoder; and the computer is respectively electrically connected with the data acquisition device and the display and is used for carrying out image identification and disease point marking on the tunnel lining image, and meanwhile, splicing and displaying the tunnel lining image after the disease point marking in real time.
Further preferably, the system also comprises a positioning device, wherein the positioning device is electrically connected with a computer, the computer is electrically connected with an auxiliary light source, and the positioning device is used for reading and writing positioning tags in the tunnel, reading positioning information in the positioning tags and feeding the positioning information back to the computer for mileage correction of the flaw detection mobile platform; reading tunnel structure information in the positioning label, and feeding back the tunnel structure information to the computer to adjust the brightness and exposure parameters of the auxiliary light source so as to change the depth of field effect of the image and obtain a clear image; and writing the disease point information fed back by the computer into the positioning label to mark the position of the disease point.
Further preferably, the computer, the display, the synchronous encoder, the data collector, the tunnel inspection image collecting device and the positioning device are detachably arranged on the flaw detection mobile platform respectively.
Compared with the prior art, the utility model have following advantage and positive effect:
1) the utility model is provided with a plurality of CCD cameras, the fixed positions of the CCD cameras are positioned on the same circular ring, the center of the circular ring is positioned at the circle center of the tunnel in the working state, the arrangement can ensure that the distance between the CCD industrial camera lens and the tunnel lining surface is kept consistent, the parameters such as focal length and the like do not need to be adjusted in the shooting process, the collected images are not easy to deform, the actual size of the images shot by each lens is consistent, the difficulty of image processing is greatly reduced, the real-time processing of the images is convenient, the timeliness of the image processing is improved, and simultaneously, because the arrangement mode of the same circular ring is adopted, the detection range can be greatly improved to 360 degrees at most, the range of the tunnel lining surface is conveniently covered, clear photographing of the cross section (such as a circle, a rectangle, a horseshoe and the like) of the whole tunnel at different visual distances can be completed, and the technical effects of easy processing of images and large detection range are achieved;
2) the CCD cameras and the auxiliary light sources are sequentially arranged on the fixed support at intervals, each auxiliary light source can be used for exposing two CCD cameras, the utilization rate of the auxiliary light sources is improved, the cost is reduced, meanwhile, the exposure difference between the shooting of the CCD cameras is reduced under the same shooting requirement, the consistency between images is further improved, and the timeliness of image processing is improved;
3) the utility model discloses the shooting angle part between the adjacent CCD camera overlaps, has not only reduced the possibility that the missed examination region appears, utilizes the part that the image overlaps moreover, can reduce the degree of difficulty of image concatenation, and the real-time processing of the image of being convenient for improves image processing timeliness;
4) the utility model discloses a fixed bolster simple structure lightweight, easily transportation storage, and the cost is reduced adopts LED area array light source simultaneously, can form the light zone of luminance uniformity at the tunnel wall, has reduced the exposure difference between the shooting of CCD camera under the same shooting requirement, has further improved the uniformity between the image, improves image processing ageing efficiency;
5) the utility model discloses a tunnel patrols and examines image acquisition device is through setting up on the mobile platform that detects a flaw to cooperate computer, display, synchronous encoder, data collection station, carry out the synchronous shooting in tunnel, disease discernment, splice in real time and show, wherein, because the image manageability that tunnel patrols and examines image acquisition device collection, the recognition speed and the concatenation speed of tunnel patrol and examine system have been improved, thereby can realize on-the-spot real-time display, the user can carry out the on-the-spot processing of patrolling and examining or inform relevant departments in time to handle through the content that shows in real time, tunnel patrol and examine ageing has been greatly improved, high efficiency has been reached, the check-out time is short, high accuracy, be difficult for the technological effect who takes place the;
6) the utility model discloses a tunnel inspection system reads or writes into the location label through positioner, can carry out the mark of disease point, the mileage of the mobile platform that detects a flaw is rectified, has made things convenient for the reinspection of later stage, and mileage correction has also improved the accuracy that the disease point was fixed a position simultaneously, has reached the technological effect of patrolling and examining the level standard;
7) the utility model discloses a tunnel system of patrolling and examining adopts detachable modular design, is convenient for can save alone, transport, has improved the convenience of system.
Drawings
Fig. 1 is a three-dimensional structure diagram of the tunnel inspection image acquisition device of the utility model;
fig. 2 is a plan structure view of the tunnel inspection image acquisition device of the present invention;
fig. 3 is a schematic view of the overall structure of a tunnel inspection system of the present invention;
fig. 4 is a schematic view of an installation position of the tunnel inspection system of the present invention;
fig. 5 is a block diagram of a tunnel inspection system according to the present invention;
fig. 6 is a flow chart of the synchronous triggering of the tunnel inspection system of the present invention;
fig. 7 is the utility model discloses a disease identification flow chart of system is patrolled and examined in tunnel.
Description of reference numerals:
1-tunnel inspection image acquisition device; 11-a CCD camera; 12-an auxiliary light source; 13-fixing the bracket; 131-a support bar; 132-fixed block; 133-a chassis; 2-flaw detection moving platform; 31-a computer; 32-a display; 33-a synchronous encoder; 34-a data collector; 35-positioning means.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
The following description will be made in detail with reference to the accompanying drawings and specific embodiments for the tunnel inspection image collecting device 1 and the tunnel inspection system provided by the present invention.
Example 1
Referring to fig. 1, the application provides an image acquisition device is patrolled and examined in tunnel is applied to the image acquisition of tunnel lining face, includes: the device comprises a plurality of CCD cameras 11, a plurality of auxiliary light sources 12 for shooting and exposing the CCD cameras 11 and a fixed support 13, wherein the CCD cameras 11 and the auxiliary light sources 12 are fixed on the fixed support 13; wherein, the fixed position of a plurality of CCD cameras 11 is located same ring, and under operating condition, the center of ring is located the centre of a circle position in tunnel to guarantee that a plurality of CCD cameras 11 are unanimous with the distance of tunnel lining face, and the whole scope of shooting angle cover tunnel lining face of a plurality of CCD cameras 11.
The present embodiment will now be described in detail:
the tunnel inspection image acquisition device of the embodiment can be installed on any platform and is connected and installed through the fixing support 13 so as to acquire images for tunnel inspection.
Referring to fig. 1 and 2, in the present embodiment, 6 CCD cameras 11 and 7 auxiliary light sources 12 are adopted, the auxiliary light sources 12 are stroboscopic area array light sources, and are distributed on the same circular ring through a fixing support 13, and the layout has the advantages that the auxiliary light sources 12 and the CCD cameras 11 are closely arranged on the same support, and the overall structure is simple. Each auxiliary light source 12 and the CCD camera 11 of this embodiment are separated by 22.5 ° and 6 CCD camera 11 channels, each CCD camera 11 has an annular shooting angle of 48 ° so as to completely cover a 270 ° tunnel (with a partially overlapped area), the auxiliary light sources 12 are LED area array light sources, and are arranged at an interval of 45 °, so that light bands with uniform brightness can be formed on the wall surface of the tunnel. The angle setting, the quantity setting and the equipment selection are only specific technical schemes, similarly, the design can be adjusted according to the structure of the tunnel and the annular shooting angle of the camera, 360-degree shooting coverage can be realized to the maximum extent, further optimization is realized, the existence and the cost of the steel rail are considered, and the whole shooting angle of 270-degree is optimally selected, so that clear shooting of all-line tunnel sections (such as circles, rectangles, horseshoe shapes and the like) at different visual distances can be completed.
This embodiment sets up a plurality of CCD cameras 11, and the fixed position of a plurality of CCD cameras 11 is located same ring, under the operating condition, the center of ring is located the centre of a circle position in tunnel, it can guarantee that the distance of CCD industry camera lens and tunnel inside lining face keeps unanimous so to arrange, need not to adjust parameters such as focus in the shooting process, it is difficult for taking place the deformation to gather the image, the image actual size that every camera lens was shot is unanimous, the degree of difficulty of image processing has greatly reduced, be convenient for the real-time processing of image, improve image processing timeliness, and simultaneously, owing to adopt the mode of setting of same ring, can improve detection range greatly, can reach 360 at most, be convenient for cover the scope of tunnel inside lining face, can accomplish the clear of the different stadia looks of full-line tunnel section and shoot, reached image tractability.
Specifically, referring to fig. 1, the fixing bracket 13 of the present embodiment includes a bottom frame 133, a fixing block 132, and a plurality of support rods 131, wherein the bottom frame 133 is fixedly connected to the fixing block 132, one end of each support rod 131 is fixedly connected to the fixing block 132, and the other end of each support rod 131 is fixedly connected to the CCD camera 11 or the auxiliary light source 12. Similarly, the fixed bracket 13 may be a circular ring-shaped supporting plate, and the CCD camera 11 and the auxiliary light source 12 are mounted on the supporting plate, and the auxiliary bracket is integrally fixed and supported. The fixed bolster 13 of this embodiment simple structure lightweight, easily transportation storage, the cost is reduced moreover, adopts LED area array light source simultaneously, can form the even light zone of luminance at the tunnel wall, has reduced the exposure difference between 11 shootings of CCD camera under the same shooting requirement, has further improved the uniformity between the image, improves image processing ageing efficiency.
Preferably, referring to fig. 2, the CCD camera 11 and the auxiliary light source 12 are sequentially fixed to the fixing bracket 13 at intervals. This embodiment so sets up, each auxiliary light source 12 can supply the exposure of two CCD cameras 11, the utilization ratio of auxiliary light source 12 has been improved, the cost is reduced, under the same shooting requirement, the exposure difference between the shooting of CCD camera 11 has been reduced, the uniformity between the image has been improved, thereby improve image processing timeliness, adopt LED area array light source can form the even light band of luminance at the tunnel wall simultaneously, also for the exposure difference between the shooting of CCD camera 11 has been reduced, further improve the uniformity between the image, thereby improve image processing timeliness.
Preferably, the shooting angles between the adjacent CCD cameras 11 of the present embodiment partially overlap. The utility model discloses shooting angle part between the adjacent CCD camera 11 overlaps, has not only reduced the possibility that appears lou examining the region, utilizes the part that the image overlaps moreover, can reduce the degree of difficulty of image concatenation, and the real-time processing of the image of being convenient for improves image processing ageing.
Example 2
Referring to fig. 3, the present application provides a tunnel inspection system based on embodiment 1, including a flaw detection mobile platform 2 for traveling on a steel rail, further including a computer 31, a display 32, a synchronous encoder 33, a data collector 34, and the tunnel inspection image acquisition apparatus 1 as in embodiment 1, which are disposed on the flaw detection mobile platform 2;
the fixed support 13 is arranged on the flaw detection moving platform 2, and the center of a circular ring where the plurality of CCD cameras 11 are located is located at the circle center of the tunnel in a working state, so that the distances between the plurality of CCD cameras 11 and the inner lining surface of the tunnel are consistent; the synchronous encoder 33 is respectively electrically connected with the CCD camera 11 and the auxiliary light source 12, and is used for sending synchronous pulse signals at regular intervals to trigger the plurality of CCD cameras 11 and the plurality of auxiliary light sources 12 to synchronously work according to the displacement of the flaw detection mobile platform 2; the data acquisition unit 34 is respectively electrically connected with the plurality of CCD cameras 11 and the synchronous encoder 33, and is used for acquiring tunnel lining images shot by the CCD cameras 11 and numbering the tunnel lining images by combining the synchronous encoder 33; the computer 31 is electrically connected to the data acquisition unit 34 and the display 32, respectively, and is configured to perform image recognition and disease point labeling on the tunnel lining image, and simultaneously splice and display the tunnel lining image after the disease point labeling in real time.
The present embodiment will now be described in detail:
referring to fig. 4 and 5, the flaw detection mobile platform 2 of the embodiment is a double-track flaw detection vehicle which can move on a steel rail, wherein the tunnel inspection image acquisition device 1 is fixedly installed at the tail of the vehicle body and protrudes out of the vehicle body, the center of a ring where the plurality of CCD cameras 11 are located is located at the center of a circle of the tunnel, and the arrangement mode can ensure that the distance between the lens of the CCD industrial camera and the lining surface of the tunnel is kept consistent. The front part of the double-track flaw detection vehicle is provided with a computer 31 and a display 32 so as to be used for controlling the whole double-track flaw detection vehicle and the tunnel inspection system, a user can adjust relevant parameters of the tunnel inspection system on site in real time and can check pictures shot by the tunnel inspection system on site in real time so as to confirm whether a defect point exists in the tunnel on site, and if so, relevant departments can be informed to carry out operations such as maintenance in time.
The synchronous encoder 33 of this embodiment may be installed on a moving bearing of the inspection moving platform 2, and generates a pulse signal having a direction and a displacement amount according to the rotation of the bearing, so as to perform synchronous triggering of the CCD camera 11 and the light source, and a mode of synchronously triggering one-time shooting at a fixed distance during driving may be adopted, specifically, referring to fig. 6, an a +, B +, a-, B-signal is generated according to the movement of the vehicle body, and the generated signal is transmitted to the signal processor, the signal processor integrates and processes the pulse signal generated by the synchronous encoder 33, determines the traveling direction and the pulse number of the dual-rail inspection vehicle currently carrying the intelligent tunnel inspection system, determines a corresponding encoding value and uploads the corresponding encoding value to the computer 31 for image storage, and triggers the CCD area-array camera and the light source controller to synchronously work through suitable multi-frequency-division transmission, the CCD area-array camera and the light source controller receive the corresponding pulse signal, the CCD area-array camera is triggered to work and is used for collecting tunnel lining image data, the light source controller controls the switching frequency of the light source to synchronize the shooting frequency of the CCD area-array camera after receiving the pulse signal, and the fact that the interior of the tunnel is bright enough when the CCD area-array camera shoots is guaranteed.
The data collector 34 of this embodiment may be a switch, and the switch may be a multi-way switch, which may realize data summarization and simplify the communication connection line from the camera to the computer 31. After receiving the tunnel lining image transmitted by the data collector 34, the computer 31 recognizes the defect point image, wherein the images inside the tunnel are collected on site in a large number in the early stage, and the regional gray level difference formed by the normal images and the problem image content of the pedestrian platform, the electric cable pipeline, the tunnel segment joint, the fire fighting channel indicator lamp, the electric appliance box, the fire fighting emergency telephone, the train platform, the fire fighting pipeline, the stairs and the like is analyzed and counted in a large number, so that the basic technical preparation is made for various intelligent recognition of tunnel routing inspection.
Referring to fig. 7, the specific process of identifying the disease point image is as follows: the first step is as follows: the system continuously acquires 270-degree tunnel lining images of the whole tunnel through the cooperation of a stroboscopic area array LED light source and an area array CCD industrial camera, stores the images and cuts images in an image repetition area; the second step is that: the method has the advantages that the impurities distributed randomly on the tunnel segment, the platform and the like are filtered through image filtering, so that the surfaces of the tunnel segment, the platform and the like are smoother, and the efficiency of tunnel intelligent algorithm is improved; the third step: the image enhancement is to integrally inhibit the pixel gray value of the shot surface images of a common tunnel segment, a platform and the like, integrally enhance special points like cracks, leakage water and the like, and facilitate the rapid screening of suspected disease points by a tunnel disease identification algorithm; the fourth step: and (4) performing abnormity alarm through comparing the suspected damage point with the theoretical model, and generating a problem point report if the similarity accords with the theoretical model.
Referring to fig. 3, preferably, the mobile flaw detection system further comprises a positioning device 35, the positioning device 35 is electrically connected with the computer 31, the computer 31 is electrically connected with the auxiliary light source 12, and the positioning device 35 is used for reading and writing positioning tags in the tunnel, wherein the positioning information in the positioning tags is read and fed back to the computer 31 for mileage correction of the mobile flaw detection platform 2; reading tunnel structure information in the positioning tag, and feeding back to the computer 31 to adjust the brightness and exposure parameters of the auxiliary light source 12 so as to change the depth of field effect of the image and obtain a clear image; and writing the disease point information fed back by the computer 31 into the positioning label to mark the position of the disease point.
Specifically, the positioning device 35 is provided with a vehicle-mounted reader, the tag information is read in time through a positioning system, and the tag information is transmitted to the computer 31 in communication modes such as ethernet, bluetooth, Zigbee, WLAN or RS232 and RS485, and a ledger is generated in the background. If the vehicle runs through the tunnel structure size change section, the inspection system can be informed in advance through the label, and the inspection system reaches the position to automatically change the brightness and the exposure parameters of the light source, so that the depth of field effect of the image is changed, and a clear image is shot. Preferably, the vehicle-mounted reader is based on RFID technology. The tunnel inspection system of this embodiment reads or writes in the location label through positioner 35, can carry out the mark of disease point, the mileage of the mobile platform 2 that detects a flaw is rectified, has made things convenient for the reinspection in later stage, and mileage correction has also improved the accuracy of disease point location simultaneously, has reached the technological effect of patrolling and examining the standard deviation.
Preferably, the computer 31, the display 32, the synchronous encoder 33, the data collector 34, the tunnel inspection image collecting device 1 and the positioning device 35 are detachably arranged on the flaw detection mobile platform 2 respectively. The tunnel inspection system of the embodiment adopts a detachable modular design, so that the tunnel inspection system can be stored and transported independently, and the convenience of the system is improved.
The working process of this embodiment will now be explained:
the whole working flow of the tunnel inspection system is as follows:
s1: the vehicle enters a tunnel area and starts to detect when running;
s2: the synchronous encoder 33 automatically triggers a synchronous pulse periodic signal along with the advance of the double-track flaw detection vehicle, and simultaneously sends the signal to the CCD industrial camera and the light source controller to enable the CCD industrial camera and the light source controller to synchronously work, and finishes one-time image acquisition after the double-track flaw detection vehicle travels a fixed distance;
s3: in the running process of the double-track flaw detection vehicle, marking is carried out for the whole kilometer through the RFID positioning system, the computer 31 is informed in advance through the RFID label at the position where the tunnel size changes, and the tunnel inspection system reaches the position to automatically change the brightness and the exposure parameters of the light source, so that the depth-of-field effect of the image is changed, and a clear image is shot
S4: the data acquisition unit 34 acquires images in real time, and combines the synchronous encoder 33 to number corresponding images and then performs the following processing operations in various communication modes: the communication modes such as ethernet, bluetooth, Zigbee, WLAN or RS232, RS485, etc. are uploaded to the computer 31;
s5: the intelligent recognition system in the computer 31 realizes the water leakage recognition through the local image gray scale difference characteristics, and realizes the automatic recognition functions of pipeline falling and the like through the linear gray scale difference characteristics. For the identified disease points, corresponding information is written in the positioning labels through the RFID positioning device 35, so that later-stage review is facilitated;
s6: the computer 31 calls the tunnel images identified and marked with the disease points, and splices the images acquired by the 6 CCD cameras 11 at the same moment through an algorithm so as to more intuitively display the complete tunnel lining images.
The tunnel inspection image acquisition device 1 of the embodiment is arranged on the flaw detection mobile platform 2, and is matched with the computer 31, the display 32, the synchronous encoder 33 and the data acquisition device 34 to perform synchronous shooting of the tunnel, disease identification and real-time splicing and display, wherein the tunnel inspection image acquisition device 1 based on the embodiment 1 is easy to process images, the identification speed and the splicing speed of the tunnel inspection system are improved, so that on-site real-time display can be realized, a user can perform on-site inspection processing through the real-time display content or timely inform relevant departments to process the on-site processing content, the tunnel inspection timeliness is greatly improved, and the technical effects of high efficiency, short detection time, high accuracy and difficulty in missed inspection are achieved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (8)
1. The utility model provides an image acquisition device is patrolled and examined in tunnel, is applied to the image acquisition of tunnel lining face, a serial communication port, includes: the device comprises a plurality of CCD cameras, a plurality of auxiliary light sources for shooting and exposing the CCD cameras and a fixed support, wherein the CCD cameras and the auxiliary light sources are fixed on the fixed support; wherein the content of the first and second substances,
the fixed positions of the CCD cameras are located on the same circular ring, the center of the circular ring is located at the circle center of the tunnel in a working state, so that the distances between the CCD cameras and the tunnel lining surface are consistent, and the whole shooting angles of the CCD cameras cover the range of the tunnel lining surface.
2. The tunnel inspection image acquisition device according to claim 1, wherein the CCD camera and the auxiliary light source are sequentially fixed on the fixed support at intervals.
3. The tunnel inspection image acquisition device according to claim 1, wherein the shooting angles between adjacent CCD cameras partially overlap.
4. The image acquisition device is patrolled and examined in tunnel according to any one of claims 1-3, characterized in that, the fixed bolster includes chassis, fixed block, a plurality of bracing piece, the chassis with fixed block fixed connection, the one end of bracing piece with fixed block fixed connection, the other end of bracing piece with CCD camera or auxiliary light source fixed connection.
5. The tunnel inspection image acquisition device according to any one of claims 1 to 3, wherein the auxiliary light source is an LED area array light source.
6. A tunnel inspection system comprises a flaw detection mobile platform for travelling on a steel rail, and is characterized by further comprising a computer, a display, a synchronous encoder, a data collector and the tunnel inspection image collecting device according to any one of claims 1 to 5, wherein the computer, the display, the synchronous encoder and the data collector are arranged on the flaw detection mobile platform; wherein the content of the first and second substances,
the fixed support is arranged on the flaw detection moving platform, and the centers of the circular rings where the CCD cameras are located at the circle center of the tunnel in a working state, so that the distances between the CCD cameras and the inner lining surface of the tunnel are consistent;
the synchronous encoder is respectively electrically connected with the CCD cameras and the auxiliary light sources and used for sending synchronous pulse signals at fixed intervals to trigger the CCD cameras and the auxiliary light sources to work synchronously according to the displacement of the flaw detection mobile platform;
the data acquisition unit is respectively electrically connected with the plurality of CCD cameras and the synchronous encoder and is used for acquiring tunnel lining images shot by the CCD cameras and numbering the tunnel lining images by combining the synchronous encoder;
and the computer is respectively electrically connected with the data acquisition device and the display and is used for carrying out image identification and disease point marking on the tunnel lining image, and meanwhile, splicing and displaying the tunnel lining image after the disease point marking in real time.
7. The tunnel inspection system according to claim 6, further comprising a positioning device electrically connected to the computer, the computer being electrically connected to the auxiliary light source, the positioning device being configured to position reading and writing of tags within the tunnel, wherein,
reading positioning information in the positioning label and feeding back the positioning information to the computer to perform mileage correction on the flaw detection mobile platform;
reading tunnel structure information in the positioning label, and feeding back the tunnel structure information to the computer to adjust the brightness and exposure parameters of the auxiliary light source so as to change the depth of field effect of the image and obtain a clear image;
and writing the disease point information fed back by the computer into the positioning label to mark the position of the disease point.
8. The tunnel inspection system according to claim 7, wherein the computer, the display, the synchronous encoder, the data collector, the tunnel inspection image acquisition device and the positioning device are detachably arranged on the inspection mobile platform respectively.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921669806.4U CN210720194U (en) | 2019-10-08 | 2019-10-08 | Tunnel inspection image acquisition device and tunnel inspection system |
| PCT/CN2020/117088 WO2021068746A1 (en) | 2019-10-08 | 2020-09-23 | Image acquisition device for tunnel inspection, tunnel inspection system, and tunnel inspection method |
| EP20873699.1A EP4043693A4 (en) | 2019-10-08 | 2020-09-23 | Image acquisition device for tunnel inspection, tunnel inspection system, and tunnel inspection method |
| US17/767,437 US20240070831A1 (en) | 2019-10-08 | 2020-09-23 | Tunnel-inspection image acquisition device, tunnel-inspection system, and tunnel-inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921669806.4U CN210720194U (en) | 2019-10-08 | 2019-10-08 | Tunnel inspection image acquisition device and tunnel inspection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210720194U true CN210720194U (en) | 2020-06-09 |
Family
ID=70926440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921669806.4U Active CN210720194U (en) | 2019-10-08 | 2019-10-08 | Tunnel inspection image acquisition device and tunnel inspection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210720194U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487816A (en) * | 2019-10-08 | 2019-11-22 | 上海市东方海事工程技术有限公司 | A kind of tunnel inspection image collecting device and tunnel cruising inspection system |
| CN111787209A (en) * | 2020-07-20 | 2020-10-16 | 北京交通大学 | Tunnel image acquisition device, image acquisition system and image acquisition method |
| WO2021068746A1 (en) * | 2019-10-08 | 2021-04-15 | 上海市东方海事工程技术有限公司 | Image acquisition device for tunnel inspection, tunnel inspection system, and tunnel inspection method |
| CN113504691A (en) * | 2021-06-04 | 2021-10-15 | 浙江大华技术股份有限公司 | Full-angle cloud platform light filling mechanism and full-angle cloud platform camera device |
-
2019
- 2019-10-08 CN CN201921669806.4U patent/CN210720194U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110487816A (en) * | 2019-10-08 | 2019-11-22 | 上海市东方海事工程技术有限公司 | A kind of tunnel inspection image collecting device and tunnel cruising inspection system |
| WO2021068746A1 (en) * | 2019-10-08 | 2021-04-15 | 上海市东方海事工程技术有限公司 | Image acquisition device for tunnel inspection, tunnel inspection system, and tunnel inspection method |
| CN111787209A (en) * | 2020-07-20 | 2020-10-16 | 北京交通大学 | Tunnel image acquisition device, image acquisition system and image acquisition method |
| CN113504691A (en) * | 2021-06-04 | 2021-10-15 | 浙江大华技术股份有限公司 | Full-angle cloud platform light filling mechanism and full-angle cloud platform camera device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021068746A1 (en) | Image acquisition device for tunnel inspection, tunnel inspection system, and tunnel inspection method | |
| CN210720194U (en) | Tunnel inspection image acquisition device and tunnel inspection system | |
| CN110487816A (en) | A kind of tunnel inspection image collecting device and tunnel cruising inspection system | |
| KR101111569B1 (en) | Monitering System of Railroad Facilities using Railway Vehicle | |
| CN110593957B (en) | Tunnel inspection method | |
| CN202098297U (en) | Automatic inspecting device of key overhead contact network components | |
| CN105423940A (en) | Subway tunnel structure cross section deformation rapid detection device | |
| WO2012057592A2 (en) | System and method for monitoring railroad facilities using a railway vehicle | |
| CN206983987U (en) | Rail track equipment appearance cruising inspection system | |
| CN204674616U (en) | A kind of dynamic detector for train wheel pair size | |
| CN104655047A (en) | Rapid and comprehensive tunnel measurement system | |
| CN111413353A (en) | Tunnel lining disease comprehensive detection vehicle | |
| CN109305179A (en) | Rail track equipment appearance cruising inspection system | |
| CN201846437U (en) | High-definition video monitoring system for truck loading state | |
| CN110245734A (en) | Tunnel structure disease recognition System and method for based on rail mounted crusing robot | |
| CN201926645U (en) | Magnetic flaw auto-imaging detecting system for train axles | |
| CN109242035B (en) | Vehicle bottom fault detection device and method | |
| CN203165044U (en) | Vehicle-mounted intelligent track inspection system | |
| CN114113118B (en) | Rapid detection device and detection method for subway tunnel lining crack leakage water disease | |
| CN214028599U (en) | Suspension type tunnel inspection robot and system | |
| CN103434268B (en) | Detecting system for printing equipment | |
| CN111398309A (en) | Apparent detection system of tunnel lining disease comprehensive detection vehicle | |
| CN108709497B (en) | Contact net geometric parameters detection device | |
| CN101424529A (en) | Train scanning system | |
| CN111398950A (en) | Radar detection evasion system of tunnel defect comprehensive detection vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |