CN211060848U - Visual detection device based on distributed optical fiber monitoring - Google Patents
Visual detection device based on distributed optical fiber monitoring Download PDFInfo
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- CN211060848U CN211060848U CN201922167698.7U CN201922167698U CN211060848U CN 211060848 U CN211060848 U CN 211060848U CN 201922167698 U CN201922167698 U CN 201922167698U CN 211060848 U CN211060848 U CN 211060848U
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- optical fiber
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- distributed optical
- detection device
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Abstract
The utility model discloses a visual detection device based on distributed optical fiber monitoring, visual detection device based on distributed optical fiber monitoring includes total accuse unit, the support body, set up in the fixture device of support body, visual detection device based on distributed optical fiber monitoring still sets up in the longitudinal rail of support body including the length direction who detects the dolly and follow the support body, it includes movably automobile body that sets up on longitudinal rail to detect the dolly, transverse guide and image acquisition equipment assembly on the automobile body set up, image acquisition equipment assembly is including installing the sideslip base on transverse guide and setting up the ring rail on the sideslip base and set up the rotatory steering wheel on ring rail and install the camera on rotatory steering wheel. This visual detection device based on distributed optical fiber monitoring aims at solving among the prior art bridge surface and has the inconvenient and ageing, authenticity, the poor technical problem of accuracy that detect of optic fibre installation when detecting.
Description
Technical Field
The utility model relates to a large-scale foundation engineering detects technical field, especially relates to a visual detection device based on distributed optical fiber monitoring.
Background
At present, the BOTDR-based distributed optical fiber strain sensing technology is widely applied to detection of large-scale foundation engineering such as bridges, tunnels, mine side slopes and the like, and in order to enable an optical fiber to accurately reflect the strain state of a detected object, the optical fiber and the detected object need to be deformed synchronously. However, when the optical fiber is laid, the defects of inconvenient installation of the test optical fiber, large installation difficulty, poor operability and the like exist, and the test optical fiber is generally fixed by using an adhesive, so that the installation position of the test optical fiber can not be moved and modified once being fixed, the overall detection is limited to a certain extent, most importantly, the BOTDR distributed strain detection system determines the general position of a crack through spectrum drift on a spectrogram uploaded in real time, a real-time picture of a detection object can not be uploaded in real time, and manual actual reconnaissance analysis is required to be carried out on site according to data, so that the detection can not have timeliness and authenticity, and engineering technicians can not obtain very accurate diagnosis results.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Based on this, the utility model provides a visual detection device based on distributed optical fiber monitoring, this visual detection device based on distributed optical fiber monitoring has the ageing, authenticity, the poor technical problem of accuracy of the inconvenient and detection of optic fibre installation when aiming at solving among the prior art bridge surface detection.
(II) technical scheme
In order to solve the technical problem, the utility model provides a visual detection device based on distributed optical fiber monitoring, wherein, visual detection device based on distributed optical fiber monitoring includes total accuse unit, is used for fixing to the support body that is detected the body surface, set up in being used for of support body with optic fibre fixed extremely the fixture device detected the body surface, visual detection device based on distributed optical fiber monitoring still includes detection dolly and edge the length direction of support body set up in the longitudinal rail of support body, it includes movably setting up to detect the dolly automobile body, setting on the longitudinal rail are in transverse guide and image acquisition equipment assembly on the automobile body, transverse guide's direction with the direction of longitudinal rail is perpendicular, image acquisition equipment assembly is including movably installing transverse guide base and setting on the transverse guide are in annular guide on the transverse guide base and rotationally set up annular guide on the transverse guide base The clamp device, the vehicle body and the transverse moving base are respectively provided with a driving unit and a rotary steering engine, wherein the driving unit and the rotary steering engine are respectively in signal connection with the master control unit.
Preferably, fixture device including can follow the width concertina movement ground of support body set up in the first telescopic link and the second telescopic link of support body, first telescopic link is faced the tip of second telescopic link is provided with first locating piece, first telescopic link is faced the tip of second telescopic link is provided with the second locating piece, fixture device is still including wearing to locate lift depression bar on the second locating piece, lift depression bar can be followed the direction of height elevating movement of support body, first telescopic link and second telescopic link transmission respectively are connected to sharp drive arrangement, in order to drive first locating piece and second locating piece are closed, sharp drive arrangement with total accuse unit signal connection.
Preferably, the first positioning block and the second positioning block form a hemisphere shape when closed, a plane of the hemisphere shape is used for facing the surface of the detected object, and the size of the second positioning block is larger than that of the first positioning block.
Preferably, a wheel steering engine controller and wheels are connected to the vehicle body, the wheels are arranged on the longitudinal guide rails, the wheels are provided with wheel steering engines in signal connection with the wheel steering engine controller, and the wheel steering engine controller is in signal connection with the master control unit.
Preferably, the number of the fixture devices is multiple, and the fixture devices are sequentially arranged at intervals along the length direction of the rack body.
Preferably, the rack body is of a square tube structure with an open lower part.
Preferably, the square tube structure is a transparent structure.
Preferably, the visual detection device based on distributed optical fiber monitoring is a visual bridge crack detection device based on distributed optical fiber monitoring.
(III) advantageous effects
The utility model discloses compare with prior art, the beneficial effects of the utility model include:
because the visual detection device based on distributed optical fiber monitoring provided by the utility model is provided with the clamp device used for fixing the optical fiber to the surface of the detected body, and the respective driving units and the rotary steering engine of the clamp device, the vehicle body and the traversing base are respectively connected with the master control unit through signals, on one hand, the optical fiber can be fixed to the surface of the detected body (such as a bridge) through the clamp device without being fixed by a binder, so the installation position of the optical fiber can be conveniently moved and modified once being fixed, the optical fiber can be better attached to the surface of the detected bridge through the clamp device after the binder is abandoned, the test optical fiber and the detected bridge are synchronously deformed, the test precision is further improved, on the other hand, the detection trolley can conveniently and quickly reach the designated position through the detection trolley, the traversing base and the rotary steering engine, the transverse moving base transversely moves to enable the camera to transversely move along with the transverse moving base, the rotary steering engine can rotate the camera by 360 degrees, live pictures of the detected bridge are uploaded in real time, and authenticity and accuracy of monitoring results are improved.
Other advantageous effects of the present invention will be described in the following detailed description.
Drawings
The features and advantages of the invention will be more clearly understood by reference to the accompanying drawings, which are schematic and should not be understood as imposing any limitation on the invention, in which:
fig. 1 is a partial top view of a visual detection device based on distributed optical fiber monitoring according to an embodiment of the present invention;
fig. 2 is a top view of a visual detection device based on distributed optical fiber monitoring according to an embodiment of the present invention;
fig. 3 is a side view of a visual detection device based on distributed optical fiber monitoring according to an embodiment of the present invention;
fig. 4 is a partial front view of a visual detection device based on distributed optical fiber monitoring according to an embodiment of the present invention;
fig. 5 is a front view of the visual detection device based on distributed optical fiber monitoring according to an embodiment of the present invention.
Description of reference numerals:
1. the optical fiber, 2, a frame body, 3, a longitudinal guide rail, 4, a vehicle body, 5, a transverse guide rail, 6, a transverse moving base, 7, an annular guide rail, 8, a rotary steering engine, 9, a camera, 10, a console, 11, a first telescopic rod, 12, a second telescopic rod, 13, a first positioning block, 14, a second positioning block, 15, a lifting pressure rod, 16, a wheel steering engine controller, 17, a wheel, 18 and a connecting structure.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
Referring to fig. 1 to 5, this the utility model discloses a visual detection device based on distributed optical fiber monitoring, wherein, visual detection device based on distributed optical fiber monitoring includes total accuse unit, a support body 2 for being fixed to being detected the body (for example bridge) surface, set up in support body 2 be used for fixing optic fibre 1 to the fixture device who is detected the body surface, support body 2 will be fixed to being detected the body during detection operation, visual detection device based on distributed optical fiber monitoring still includes the detection dolly and sets up in the longitudinal rail 3 of support body 2 along the length direction of support body 2, the detection dolly is including movably setting up automobile body 4 on longitudinal rail 3, set up transverse guide 5 and the image acquisition equipment assembly on automobile body 4, the direction of transverse guide 5 is perpendicular with the direction of longitudinal rail 3, the image acquisition equipment assembly is including movably installing sideslip base 6 on transverse guide 5 and setting up the annular guide on sideslip base 6 The clamp device, the respective driving units of the car body 4 and the transverse moving base 6 and the rotary steering engines 8 are respectively in signal connection with a master control unit, so that the clamp device, the car body 4, the transverse moving base 6 and the rotary steering engines 8 can be controlled to act through the master control unit, of course, a control console 10 in signal connection with the master control unit can be further arranged on the transverse moving base 6, and the control console 10 is in signal connection with the driving units of the transverse moving base 6 and the rotary steering engines 8.
The utility model provides a visual detection device of distributed optical fiber monitoring can regard as the visual bridge crack detection device based on distributed optical fiber monitoring for the bridge crack detects, nevertheless the utility model discloses be not limited to this, as long as adopted this visual detection device of distributed optical fiber monitoring promptly, regardless of being used for detecting what kind of object, all will fall into the utility model discloses a protection scope. In addition, total accuse unit can carry on BOTDR distributed optical fiber strain detection system's main control chip, nevertheless the utility model discloses be not limited to this.
According to the preferred embodiment of the present invention, the frame body 2 is a square tube structure with an open lower part, and the square tube structure is a transparent structure, such as plastic. The plastic square tube is used as a protection structure, so that the optical fiber 1 is more firm and durable and is less influenced by external interference. Of course, the present invention is not limited thereto, and the frame body 2 may be designed into other various suitable structural forms. The longitudinal rail 3 can be connected to the top of the plastic square tube, in particular by means of a connecting structure 18.
According to the specific embodiment of the present invention, the clamping device comprises a first telescopic rod 11 and a second telescopic rod 12 which are telescopically arranged on the frame body 2 along the width of the frame body 2, a first positioning block 13 is arranged at the end of the first telescopic rod 11 facing the second telescopic rod 12, a second positioning block 14 is arranged at the end of the first telescopic rod 11 facing the second telescopic rod 12, a lifting pressure rod 15 (such as a threaded pressure rod, which is matched with a threaded hole in the second positioning block 14) is arranged on the second positioning block 14, the lifting pressure rod 15 can move up and down along the height direction of the frame body 2, the first telescopic rod 11 and the second telescopic rod 12 are respectively connected to a linear driving device (such as a driving cylinder, etc.), so as to drive the first positioning block 13 and the second positioning block 14 to be closed, the linear driving device is in signal connection with the master control unit, and the linear driving device can be controlled by a button arranged on the frame body 2.
More specifically, the first positioning block 13 and the second positioning block 14 constitute a hemispherical shape when closed, a plane of the hemispherical shape is used to face the surface of the object to be detected, and the second positioning block 14 is larger in size than the first positioning block 13. However, the present invention is not limited to this, and the first positioning block 13 and the second positioning block 14 may be designed to have various other suitable structures.
In addition, a wheel steering engine controller 16 and wheels 17 are connected to the vehicle body 4, the wheels 17 are arranged on the longitudinal guide rails 3, the wheels 17 are provided with wheel steering engines in signal connection with the wheel steering engine controller 16, and the wheel steering engine controller 16 is in signal connection with the master control unit. Of course, the driving unit of the traverse base 6 may be a similar driving steering engine, the traverse base 6 may also be arranged on the transverse guide rail 5 through a structure like a roller wheel 17, and the driving steering engine for controlling the traverse base 6 may drive the traverse base 6 to move on the transverse guide rail 5.
According to the utility model discloses a preferred embodiment, fixture device's quantity is a plurality of, and a plurality of fixture device sets up along the length direction of support body 2 interval in proper order, and more preferably, fixture device sets up along the length direction of support body 2 equidistance interval in proper order, nevertheless the utility model discloses be not limited to this.
Use below to detect the bridge crack as an example, introduce the utility model discloses embodiment's visual detection device's based on distributed optical fiber monitoring theory of operation:
firstly, determining the approximate position of the optical fiber 1 with a certain length on the surface of a tested bridge through a small amount of adhesive, then placing a square tube structure with an open lower part on the laid optical fiber 1, pressing a button of a linear driving device to adjust the length of a first telescopic rod 11 until the measurement requirement is met (a first positioning block 13 is positioned at a positioning position, when a second positioning block 14 is ensured to be closed with the first positioning block 13, a lifting pressure rod 15 is positioned corresponding to the optical fiber 1 to be fixed), then driving a second telescopic rod 12 to close the second positioning block 14 with the first positioning block 13, screwing the lifting pressure rod 15 to tightly press and fix the optical fiber 1 on the surface of the tested bridge, then removing the used small amount of adhesive, and laying the optical fiber 1 with the next specified length. After the optical fibers 1 with all lengths are completely installed, a pre-test link is carried out, firstly, a data detection abnormal point is manually set, then, a master control unit sends an instruction to a wheel steering engine controller 16 of a detection trolley, the wheel steering engine controller 16 drives a wheel steering engine to enable the detection trolley to move along a longitudinal guide rail 3, when the data abnormal point exists in the detected bridge, the detection trolley immediately moves to the position near the abnormal point, then, the master control unit sends a stop instruction to the wheel steering engine controller 16 and sends an instruction to a control console 10, then, the control console 10 controls a transverse moving base 6 to move on a transverse guide rail 5 to further determine the position of the control console 10, finally, the control console 10 can send an instruction to a rotary steering engine 8 to enable a camera 9 to freely rotate for 360 degrees along an annular guide rail 7 to shoot the real conditions of all bridges near all the detected abnormal points, and upload real-time pictures, and (4) carrying out further processing and data analysis by engineering detection personnel, and carrying out bridge crack detection after solving the problem of data abnormal points in the pre-debugging process.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (8)
1. The utility model provides a visual detection device based on distributed optical fiber monitoring, a serial communication port, visual detection device based on distributed optical fiber monitoring includes total accuse unit, is used for fixing to the support body that is detected the body surface, set up in being used for of support body with optic fibre fixed extremely the fixture device that is detected the body surface, visual detection device based on distributed optical fiber monitoring still include the detection dolly and follow the length direction of support body set up in the longitudinal rail of support body, the detection dolly includes movably setting up automobile body, setting on the longitudinal rail are in transverse guide rail and image acquisition equipment assembly on the automobile body, transverse guide's direction with the direction of longitudinal rail is perpendicular, image acquisition equipment assembly includes movably to be installed sideslip base on the transverse guide rail and setting are in annular guide rail on the sideslip base and rotationally set up rotatory steering wheel on the annular guide rail And the camera is arranged on the rotary steering engine, and the respective driving units of the clamp device, the vehicle body and the transverse moving base and the rotary steering engine are respectively in signal connection with the master control unit.
2. The visual detection device based on distributed optical fiber monitoring as claimed in claim 1, wherein the fixture device includes a first telescopic rod and a second telescopic rod that are telescopically disposed on the frame body along a width of the frame body, a first positioning block is disposed at an end of the first telescopic rod facing the second telescopic rod, a second positioning block is disposed at an end of the first telescopic rod facing the second telescopic rod, the fixture device further includes a lifting/lowering rod that is disposed on the second positioning block, the lifting/lowering rod can lift and lower along a height direction of the frame body, the first telescopic rod and the second telescopic rod are respectively connected to a linear driving device in a transmission manner so as to drive the first positioning block and the second positioning block to close, and the linear driving device is in signal connection with the main control unit.
3. The visual detection device based on distributed optical fiber monitoring as claimed in claim 2, wherein the first positioning block and the second positioning block form a hemisphere shape when closed, a plane of the hemisphere shape is used to face the surface of the detected object, and the size of the second positioning block is larger than that of the first positioning block.
4. The visual detection device based on distributed optical fiber monitoring as claimed in claim 1, wherein a wheel steering engine controller and wheels are connected to the vehicle body, the wheels are arranged on the longitudinal guide rails, the wheels are provided with wheel steering engines in signal connection with the wheel steering engine controller, and the wheel steering engine controller is in signal connection with the master control unit.
5. The visual detection device based on distributed optical fiber monitoring as claimed in any one of claims 1 to 4, wherein the number of the fixture devices is plural, and the plurality of fixture devices are sequentially arranged at intervals along the length direction of the frame body.
6. The visual detection device based on distributed optical fiber monitoring of any one of claims 1 to 4, wherein the frame body is a square tube structure with an open lower part.
7. The visual inspection device based on distributed optical fiber monitoring of claim 6, wherein the square tube structure is a transparent structure.
8. The visual detection device based on distributed optical fiber monitoring according to any one of claims 1 to 4, wherein the visual detection device based on distributed optical fiber monitoring is a visual bridge crack detection device based on distributed optical fiber monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922167698.7U CN211060848U (en) | 2019-12-06 | 2019-12-06 | Visual detection device based on distributed optical fiber monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922167698.7U CN211060848U (en) | 2019-12-06 | 2019-12-06 | Visual detection device based on distributed optical fiber monitoring |
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| CN211060848U true CN211060848U (en) | 2020-07-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804164A (en) * | 2021-10-11 | 2021-12-17 | 中大检测(湖南)股份有限公司 | Wireless inclinometer mechanical clamping tool |
-
2019
- 2019-12-06 CN CN201922167698.7U patent/CN211060848U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113804164A (en) * | 2021-10-11 | 2021-12-17 | 中大检测(湖南)股份有限公司 | Wireless inclinometer mechanical clamping tool |
| CN113804164B (en) * | 2021-10-11 | 2024-02-09 | 中大智能科技股份有限公司 | Wireless inclinometer mechanical clamping tool |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.755, Xueshi street, Yuelu District, Changsha City, Hunan Province, 410205 Patentee after: CUHK testing (Hunan) Co.,Ltd. Address before: No.755, Xueshi street, Yuelu District, Changsha City, Hunan Province, 410205 Patentee before: HUNAN ZHONGDA TESTING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Visual detection device based on distributed optical fiber monitoring Effective date of registration: 20210326 Granted publication date: 20200721 Pledgee: Industrial Bank Co.,Ltd. Changsha Branch Pledgor: CUHK testing (Hunan) Co.,Ltd. Registration number: Y2021980002131 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: No.755, bachelor Road, Yuelu District, Changsha City, Hunan Province, 410205 Patentee after: Zhongda Intelligent Technology Co.,Ltd. Address before: No.755, Xueshi street, Yuelu District, Changsha City, Hunan Province, 410205 Patentee before: CUHK testing (Hunan) Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220711 Granted publication date: 20200721 Pledgee: Industrial Bank Co.,Ltd. Changsha Branch Pledgor: CUHK testing (Hunan) Co.,Ltd. Registration number: Y2021980002131 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |