CN110132151B - Concrete arch dam underwater crack electric control itinerant monitoring device and using method thereof - Google Patents
Concrete arch dam underwater crack electric control itinerant monitoring device and using method thereof Download PDFInfo
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- CN110132151B CN110132151B CN201910456844.XA CN201910456844A CN110132151B CN 110132151 B CN110132151 B CN 110132151B CN 201910456844 A CN201910456844 A CN 201910456844A CN 110132151 B CN110132151 B CN 110132151B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/02—Fixed barrages
- E02B7/04—Dams across valleys
- E02B7/08—Wall dams
- E02B7/12—Arch dams
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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Abstract
The invention discloses an electric control itinerant monitoring device for underwater cracks of a concrete arch dam and a using method of the electric control itinerant monitoring device. The underwater shooting device can carry out full-coverage image acquisition on the dam face of the concrete arch dam through the multiple groups of gear transmission devices, the assembled electrified magnetic wire sleeve and the gear trolley device, crack monitoring data are expanded in time and space, meanwhile, the device adopts a high-definition camera to shoot the surface of the dam body, and the acquired crack information comprises the crack position, the crack form and the total number of cracks.
Description
Technical Field
The invention relates to the field of hydraulic structure safety monitoring, in particular to an electric control itinerant monitoring device for an underwater crack of a concrete arch dam and a using method thereof.
Background
Crack monitoring of a concrete arch dam is an important part for monitoring the safety of a dam body structure. The deformation of the concrete material is easily affected by temperature, and when the temperature field distribution of the concrete structural member is not uniform, the expansion or contraction states of different parts are different, so that temperature cracks can be generated on the surface of the concrete structural member. The concrete arch dam built in the high-altitude cold area is characterized in that the day and night temperature difference of the dam site area is large, and the surface of the dam body of the concrete arch dam is easy to generate temperature cracks under the natural climate condition. Therefore, the dam face crack monitoring device specially aiming at the concrete arch dam operation period in the alpine region and the using method thereof are searched, are the research hotspots of researchers in the field of hydraulic structure safety monitoring for the crack monitoring direction under extreme conditions, and play an important role in the safe and stable operation of the concrete arch dam structure.
Generally, a crack meter is embedded in some important monitoring positions in a hydraulic structure crack monitoring project, however, this method can only monitor the cracking state of some positions inside the dam body, and the actual effect of crack monitoring is limited, so how to extend the coverage of crack monitoring becomes the direction of research of structural safety monitoring technicians. In addition, in the above-mentioned traditional crack monitoring mode, in case the joint meter breaks down or damages and is difficult for repairing and changing, consequently, along with concrete arch dam's increase of operating time, the survival rate of joint meter will constantly reduce, and the quality of crack monitoring project can't obtain guaranteeing. Thirdly, the monitoring amount of the joint meter is the opening degree of the crack, the number of the crack and the concrete shape of the crack cannot be monitored, and a reinforcing and repairing basis cannot be provided for the crack problem of the dam face in the operation period of the concrete arch dam in the alpine region.
For monitoring the number and the shape of cracks, the current mainstream mode is that a diver carries equipment to submerge into the water bottom to inspect the dam surface. The identification of the slight cracks on the dam surface can be realized by a manual inspection mode, but the following problems still exist: firstly, the professional background of manual inspection on actual operators is strong, and the human errors in actual operation and evaluation are difficult to avoid; secondly, diving patrol has certain dangerousness, and particularly, along with the construction of an extra-high dam in recent years, the diving depth even reaches hundreds of meters, so that the difficulty is increased; thirdly, it is difficult to systematically record the crack information of the entire dam face and perform an overall modeling of the dam face.
Along with the development of unmanned aerial vehicle technique, the engineer technical personnel begin to try to adopt the unmanned aerial vehicle mode of patrolling and examining of shooing under water to monitor the pier crack, but because the complexity of environment such as velocity of flow under water, it is difficult to guarantee all the time to patrol and examine the precision that unmanned aerial vehicle cruise at the fixed point under water. In addition, equipment accuracy requirements such as a camera for crack monitoring are higher, and the quality is heavier usually, therefore in actual engineering, the unmanned aerial vehicle price of purchasing guarantee bearing capacity and duration simultaneously is too expensive. Thirdly, the dam surface safety problem is more likely to occur when the underwater environment is severe, and the underwater unmanned aerial vehicle is difficult to realize fixed-point cruise in a scene with severe environment.
To traditional crack monitoring cover not enough, the monitoring volume is single to and artifical patrolling and examining and unmanned aerial vehicle monitoring stability shortcoming such as not enough, can adopt high definition camera under water to carry out the full coverage shooting to the concrete dam face, combine image processing technique to carry out monitoring analysis to dam body surface crack.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an electric control itinerant monitoring device for an underwater crack of a concrete arch dam in a severe cold area and a using method thereof.
The technical scheme is as follows: the dam comprises a transverse moving device, a vertical moving device and a gear trolley, wherein the transverse moving device is fixed at the top of a dam and is connected with a vertical connecting column through a transverse connecting block at the bottom of the transverse moving device; the transverse moving device comprises a power gear and a driven gear, a gear conveyor belt is sleeved outside the power gear and the driven gear, and a transverse connecting block is fixed at the bottom of the gear conveyor belt; the vertical moving device comprises a plurality of sections of assembled sleeves, a vertical connecting column is fixed at the top of each assembled sleeve, an electromagnetic wire sleeve is arranged inside each assembled sleeve, a gear rack is arranged on one side of each assembled sleeve, a gear trolley is connected onto each gear rack, and the gear trolley is fixed onto the gear rack on the outer side of each sleeve through electromagnetic force.
The gear trolley comprises a gear rotating wheel, a rotating wheel connecting shaft is arranged in the center of the gear rotating wheel and is connected with a rotating wheel support through the connecting shaft, the rotating wheel support is fixed with a gear trolley flat plate, and an underwater high-definition camera is fixed on the gear trolley flat plate.
And the flat plate of the gear trolley is also provided with an LED lamp.
The power gear and the driven gear are respectively fixed with the upright post arranged at the top of the dam through two gear supports, and a gear connecting shaft is connected between the two gear supports.
The power gear is connected with a gear external power supply.
The electromagnetic wire sleeve comprises an outer box, a magnet is arranged in the outer box, a power-on wire is wound on the magnet, and a power supply is arranged on the power-on wire.
The outer box is made of polyvinyl chloride.
The assembled sleeves are connected through high-strength bolts, and at least two groups of electromagnetic wire sleeves are arranged in each section of assembled sleeve.
A use method of an electric control itinerant monitoring device for underwater cracks of a concrete arch dam comprises the following steps:
(1) and (3) installing a transverse moving device, fixing the three stand columns on the dam crest, respectively installing fixed gear supports on the three stand columns, finally assembling the gear conveyor belt, one power gear and two driven gears, and respectively connecting and fixing the three gear supports through three gear connecting shafts.
(2) And assembling a vertical moving device, switching on an electromagnetic wire sleeve power supply, and fixing the gear trolley on a gear rack outside the sleeve by electromagnetic force.
(3) Fixing the transverse connecting block on the gear transmission belt, fixing the vertical connecting column on the transverse connecting block, and fixing the vertical moving device on the other end of the vertical connecting column.
(4) And the power supply of the power gear is switched on, so that the power gear drives the gear conveyor belt and the vertical moving device to move transversely.
(5) The power gear power supply is turned off when the underwater camera transversely rotates by 1-2 m, the electrified magnetic wire power supply is controlled to be turned on in sequence through the remote sensing switch, the gear trolley descends at a constant speed, the underwater high-definition camera starts to shoot, the position sensor collects the position of the underwater camera, and meanwhile, workers on the surface view underwater photographic image effects through VR equipment.
(6) After shooting is finished, the video is cached and compressed, meanwhile, position data collected by the position sensor is collected, and shot image data and the position data are packaged and uploaded to the web server and the data server.
(7) The method comprises the steps that monitoring management personnel download corresponding data on a web server for processing, firstly, a video format is converted into a picture format, then binarization processing is conducted on the picture, abnormal pictures selected by a program are led out after the picture is analyzed by the program, the monitoring management personnel conduct manual judgment on the abnormal pictures, and finally, analysis results and data in an analysis process are stored in a data server.
(8) And establishing a three-dimensional model for the concrete arch dam, introducing crack monitoring data into a model database, and performing finite element structure calculation analysis.
(9) The user terminal can check the three-dimensional model and the crack monitoring result, check the model database, retrieve the monitoring information and realize the visualization of the monitoring data.
Has the advantages that: the underwater shooting device can carry out full-coverage image acquisition on the dam face of the concrete arch dam through the multiple groups of gear transmission devices, the assembled electrified magnetic wire sleeve and the gear trolley device, crack monitoring data are expanded in time and space, meanwhile, the device adopts a high-definition camera to shoot the surface of the dam body, and the acquired crack information comprises the crack position, the crack form and the total number of cracks.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 1;
FIG. 4 is an enlarged view of the assembled bushing connection of the present invention;
FIG. 5 is a flow chart of the operation of the apparatus of the present invention;
fig. 6 is a system framework diagram of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 4, the invention comprises a gear external power supply 1, a transverse connecting block 2, a vertical connecting column 3, an assembled casing 4, an outer box 5, a power supply 6, a magnet 7, an electrified lead 8, an upright post 9, a gear bracket 10, a gear connecting shaft 11, a power gear 12, a gear conveyor belt 13, a driven gear 14, a gear wheel 15, a wheel connecting shaft 16, a wheel bracket 17, a gear strip 18, a camera bracket 19, an underwater high-definition camera 20, an LED lamp 21, a gear trolley panel 22, a high-strength bolt 23 and a position sensor 24.
The gear external power supply 1, the upright post 9, the gear bracket 10, the gear connecting shaft 11, the power gear 12, the gear conveying belt 13 and the driven gear 14 jointly form a transverse moving device, and power capable of automatically transversely moving is provided for the testing device. As shown in the figure 1 and the figure 2, three vertical columns 9 are uniformly fixed on the top of the dam at intervals, are all stainless steel tubes, are fixed on the ground by using concrete, and have the height of 2-5 m. The gear support 10 is installed at the two ends of each upright post 9, the gear support 10 is a stainless steel pipe, the length of the gear support is 200-500 cm, the outer diameter of the gear support is 10-20 cm, the thickness of the gear support is 3-5 cm, the gear support 10 is perpendicular to the upright posts 9, and the gear support 10 is fixedly connected with gear connecting shafts 11 on a power gear 12 and a driven gear 14. The gear connecting shaft 11 is made of stainless steel, penetrates through the centers of the power gear 12 and the driven gear 14 respectively, is connected with the gear support 10, and is 3-7 cm in diameter. The outer sides of the power gear 12 and the two driven gears 14 are sleeved with a gear transmission belt 13, and the gear transmission belt 13, the power gear 12 and the two driven gears 14 jointly form an arc-shaped transverse moving device. The power gear 12 is connected with a gear external power supply 1, and provides power for a small motor arranged in the power gear 12, so as to drive the conveying belt and the driven gear 14 to rotate, and realize the transverse movement of the camera device. The voltage of the external power supply 1 is 220V-380V; the outer diameter of the power gear 12 is 30-50 cm, the inner diameter is 3-5 cm, the width is 7-10 cm, the number of teeth is 15-30 teeth, and the roughness of the tooth surface is 1.4-1.8; the size of the driven gear 14 is the same as that of the power gear 12, the diameter is 30-50 cm, the width is 7-10 cm, the number of teeth is 15-30 teeth, the tooth surface roughness is 1.4-1.8, and the arrangement distance between the power gear 12 and the two driven gears 14 is determined by the length of a dam crest. The inner side teeth of the gear transmission belt 13 are matched with the power gear 12 and the driven gear 14, and the width is 5-15 cm.
A transverse connecting block 2 is fixed at the bottom of the central position of the gear conveyor belt 13, a vertical connecting column 3 is fixed at the bottom of the transverse connecting block 2, so that the whole transverse movement of the vertical moving device is realized, the transverse connecting block 2 is made of stainless steel, the length of the transverse connecting block is 30-50 cm, the width of the transverse connecting block is 10-15 cm, and the thickness of the transverse connecting block is 3-5 cm; the material of vertical spliced pole 3 is stainless steel, and one end is fixed on transverse connection piece 2, and vertical mobile device is connected to the other end, and its length is 15 ~ 30cm, and the diameter is 10 ~ 15 cm.
The assembled casing 4, the outer box 5, the power supply 6, the magnet 7 and the power conducting wire 8 together form a vertical moving device, as shown in fig. 3 and 4. The vertical moving device is formed by vertically connecting a plurality of sections of assembled sleeves 4, the assembled sleeves 4 are aluminum alloy tubes, the length of each section is 50-100 cm, the outer diameter is 10-20 cm, the thickness is 2-3 mm, the assembled sleeves 4 are connected into a whole by high-strength bolts 23 on the left side and the right side, and the specifications of the high-strength bolts 23 are M16-M30; two groups of electromagnetic wire sleeves are arranged in each section of the assembled sleeve 4, each electromagnetic wire sleeve comprises an outer box 5 made of polyvinyl chloride, a magnet 7 is arranged in each outer box 5, an electrified wire 8 is wound on each magnet 7, a power supply 6 is arranged on each electrified wire 8, the voltage of each power supply 6 is 220-380V, the length of each magnet 7 is 10-20 cm, and the diameter of each magnet 7 is 5-10 cm; the current-carrying conductor 8 is a copper wire with an insulating layer. The left side of the assembled sleeve 4 is provided with a gear rack 18, the gear rack 18 is connected with a gear trolley, an electromagnetic wire sleeve power supply 6 is switched on, the gear trolley is fixed on the gear rack outside the sleeve through electromagnetic force, and therefore the gear wheel 15 of the gear trolley can move in the vertical direction on the sleeve with the built-in electrified magnetic wire.
After the magnet coil in the assembled sleeve 4 is connected with a power supply, electromagnetic force is generated, and the gear wheel 15 in the gear trolley is made of stainless iron, so that the gear trolley can be fixed on the gear rack 18 of the vertical moving device through the electromagnetic force. The motion of the gear trolley is realized by controlling the on-off magnet wire pipes along the way to be sequentially opened and closed. For example: when the gear trolley needs to descend at a constant speed, the power supply of the electrified magnet wire is turned on and off from top to bottom in sequence, namely, the power supply of the electrified magnet wire in the next section of the assembled sleeve 4 is turned on, the power supply of the electrified magnet wire in the assembled sleeve 4 where the gear trolley is located is turned off, and the gear trolley is pulled to descend through the change of the electromagnetic force position. Similarly, when the gear trolley is positioned at the bottom end and needs to go upward, the power supply of the electrified magnetic wire is sequentially turned on and off from bottom to top, so that the gear trolley rises.
As shown in fig. 3, the gear trolley comprises two gear wheels 15, the gear wheels 15 are connected with a gear support 17 through two wheel connecting shafts 16, the gear wheels 15 are small-size gears, the two gear wheels 15 are identical in size, made of stainless iron, 10-20 cm in outer diameter, 1-2 cm in inner diameter and 5-10 cm in width, each gear comprises 15-30 teeth, and the roughness of the tooth surface is 1.4-1.8; the two rotating wheel connecting shafts 16 are the same in size, the diameter is 0.5-1.5 cm, the length is 10-15 cm, and the diameter of each rotating wheel connecting shaft 16 is the same as the inner diameter of each gear rotating wheel 15; the gear support 17 is made of solid stainless steel and is in the shape of an isosceles triangle, the length of two waist portions of the support is 10-20 cm, the length of the bottom edge of the support is 15-20 cm, and the gear support 17 is fixed on two sides of the gear rotating wheel 15 and is respectively fixed with the rotating wheel connecting shaft 16. A gear trolley flat plate 22 is fixed at the vertex angle of the gear bracket 17, and is made of stainless steel, the length of the gear trolley flat plate is 20-30 cm, the width of the gear trolley flat plate is 15-25 cm, and the thickness of the gear trolley flat plate is 3-5 cm; the LED lamp 21 is fixed on a trolley flat plate, the input voltage of the LED lamp 21 is 12-24V, the luminous flux is 1000-2000 lm, and the LED lamp is made of stainless steel and toughened glass; the camera support 19 is fixed to the lower portion of the left side of the gear trolley flat plate 22, the bottom edge of the camera support is aligned with the bottom edge of the gear trolley flat plate 22, the camera support 19 is made of stainless steel, the length of the camera support is 15-20 cm, the width of the camera support is 15-20 cm, and the thickness of the camera support is 3-5 cm; the underwater high-definition camera 20 is fixedly arranged on the camera support 16, the waterproof grade of the underwater high-definition camera 20 is 50-200 m underwater, the recording resolution is 1080 p-1440 p, and a position sensor 24 is fixed at the top of the underwater high-definition camera 20 and used for collecting the position of the underwater high-definition camera 20. And (4) shooting the surface of the dam body by using a high-definition camera, wherein the collected crack information comprises crack positions, crack forms and the total number of cracks.
A use method of an electric control itinerant monitoring device for underwater cracks of a concrete arch dam is shown in figure 5 and comprises the following steps:
(1) and (3) installing a transverse moving device, fixing the three stand columns on the dam crest, respectively installing fixed gear supports on the three stand columns, finally assembling the gear conveyor belt, one power gear and two driven gears, and respectively connecting and fixing the three gear supports through three gear connecting shafts.
(2) And assembling a vertical moving device, switching on an electromagnetic wire sleeve power supply, and fixing the gear trolley on a gear rack outside the sleeve by electromagnetic force.
(3) Fixing the transverse connecting block on the gear transmission belt, fixing the vertical connecting column on the transverse connecting block, and fixing the vertical moving device on the other end of the vertical connecting column.
(4) And the power supply of the power gear is switched on, so that the power gear drives the gear conveyor belt and the vertical moving device to move transversely.
(5) The power gear power supply is turned off when the underwater camera transversely rotates by 1-2 m, the electrified magnetic wire power supply is controlled to be turned on in sequence through the remote sensing switch, the gear trolley descends at a constant speed, the underwater high-definition camera starts to shoot, the position sensor collects the position of the underwater camera, and meanwhile, workers on the surface view underwater photographic image effects through VR equipment.
(6) After shooting is finished, the video is cached and compressed, meanwhile, position data collected by the position sensor is collected, and shot image data and the position data are packaged and uploaded to the web server and the data server.
(7) The monitoring manager downloads corresponding data on the web server for processing, firstly converts a video format into a picture format, then performs binarization processing on the picture, derives an abnormal picture deleted by a program after analyzing the picture by the program, performs manual judgment on the abnormal picture by the monitoring manager, and finally stores an analysis result and data in an analysis process to the data server, as shown in fig. 6.
(8) And establishing a three-dimensional model for the concrete arch dam, introducing crack monitoring data into a model database, and performing finite element structure calculation analysis.
(9) The user terminal can check the three-dimensional model and the crack monitoring result, check the model database, retrieve the monitoring information and realize the visualization of the monitoring data.
Example 1:
an external gear power supply 1 is purchased, the voltage of the external gear power supply 1 is 220-380V (220V in the embodiment), a power gear 12 and a driven gear 14, the external diameter of the external gear power supply is 30-50 cm (40 cm in the embodiment), the internal diameter of the internal gear power supply is 3-5 cm (4 cm in the embodiment), the width of the internal gear power supply is 7-10 cm (8 cm in the embodiment), the number of teeth is 15-30 teeth (15 teeth in the embodiment), the roughness of the tooth surface is 1.4-1.8 (1.5 in the embodiment), two gear connecting shafts 11 are purchased, the diameter of the two gear connecting shafts is 3-7 cm (4 cm in the embodiment), the two gear supports 10 are installed through the centers of the two gears, the length of the two gear supports 10 is 200-500 cm (300 cm in the embodiment), the external diameter of the two gear connecting shafts is 10-20 cm (15 cm in the embodiment), the thickness of the two gear connecting shafts is 3, the lateral shifting device is assembled according to the illustration of fig. 2.
The prefabricated transverse connecting block 2 is 30-50 cm (40 cm in the embodiment), 10-15 cm (12 cm in the embodiment) in width and 3-5 cm (3 cm in the embodiment), the prefabricated vertical connecting column 3 is fixed to the transverse connecting block 2 at one end and connected to a vertical moving device at the other end, the prefabricated transverse connecting block is 15-30 cm (20 cm in the embodiment) in length and 10-15 cm (12 cm in the embodiment), and the prefabricated transverse connecting block is shown in fig. 1.
The vertical displacement device is assembled according to the illustrations of fig. 3 and 4. The length of the prefabricated gear strip 18 is 50-150M (120 cm in the embodiment), each section of the prefabricated assembled casing 4 is 50-100 cm (100 cm in the embodiment), the outer diameter is 10-20 cm (10 cm in the embodiment), the thickness is 2-3 mm (3 mm in the embodiment), the casing is assembled through a high-strength bolt 23 (M16 in the embodiment), two outer boxes 5 are arranged in each section of the casing, a purchased magnet 7 is arranged in each outer box 5, the length is 10-20 cm (15 cm in the embodiment), the diameter is 5-10 cm (8 cm in the embodiment), an electrified lead 8 is purchased, and the total length is 50-100M (80M in the embodiment).
The gear trolleys are assembled as shown in figure 3. Purchasing two small gears 15, each of which has a diameter of 10-20 cm (20 cm in this embodiment), an inner diameter of 1-2 cm (1 cm in this embodiment), and a width of 5-10 cm (7 cm in this embodiment), and each of which has 15-30 teeth (15 cm in this embodiment) and a tooth surface roughness of 1.4-1.8 (1.5 cm in this embodiment); purchasing two rotating wheel connecting shafts 16, the diameter of which is 0.5-1.5 cm (1.0 cm in the embodiment), the length of which is 10-15 cm (15 cm in the embodiment), connecting the gear connecting shafts 16 with the two gear rotating wheels 15 and the rotating wheel supports 17, prefabricating the rotating wheel supports 17, the length of two waists of which is 10-20 cm (10 cm in the embodiment), the length of a bottom side of which is 15-20 cm (15 cm in the embodiment), prefabricating a trolley flat plate 22, the length of which is 20-30 cm (25 cm in the embodiment), the width of which is 15-25 cm (20 cm in the embodiment), and the thickness of which is 3-5 cm (3 cm in the embodiment). An LED lamp 21 is purchased, the input voltage of the LED lamp 21 is 12-24V (12V in the embodiment), the luminous flux is 1000-2000 lm (1500 ml in the embodiment), the LED lamp 21 is installed on a gear trolley flat plate 22, a camera support 19 is purchased, the length of the camera support is 15-20 cm (15 cm in the embodiment), the width of the camera support is 15-20 cm (15 cm in the embodiment), the thickness of the camera support is 3-5 cm (3 cm in the embodiment), an underwater high-definition camera 20 is purchased, the waterproof grade of the camera support is 50-200 m underwater (150 m in the embodiment), the recording resolution is 1080 p-1440 p (1440 p in the embodiment), the camera support 19 is fixed at the lower end of the trolley flat plate 22, and the underwater high-definition camera 20 is fixed on the camera.
After the assembly is completed, the power supply 1 of the power gear is switched on, so that the power gear drives the gear conveyor belt 13 and the vertical moving device to move transversely. The power gear power supply 1 is turned off when the underwater camera transversely rotates by 1-2 m, the electrified magnetic wire power supply 6 is controlled to be sequentially turned on through the remote sensing switch, the gear trolley descends at a constant speed, the underwater high-definition camera 20 starts to shoot, the position sensor 24 collects the position of the underwater camera, and meanwhile, workers on the surface view underwater photographic image effects through VR equipment. After shooting is finished, the video is cached and compressed, meanwhile, position data collected by the position sensor is collected, and shot image data and the position data are packaged and uploaded to the web server and the data server. The method comprises the steps that monitoring management personnel download corresponding data on a web server for processing, firstly, a video format is converted into a picture format, then binarization processing is conducted on the picture, abnormal pictures selected by a program are led out after the picture is analyzed by the program, the monitoring management personnel conduct manual judgment on the abnormal pictures, and finally, analysis results and data in an analysis process are stored in a data server. And establishing a three-dimensional model for the concrete arch dam, introducing crack monitoring data into a model database, and performing finite element structure calculation analysis. The user terminal can check the three-dimensional model and the crack monitoring result, check the model database, retrieve the monitoring information and realize the visualization of the monitoring data.
According to the distribution characteristic that the temperature cracks of the concrete arch dam are located on the surface of the dam body, the underwater high-definition camera arranged on the plane full-coverage movable support is used for shooting the concrete dam surface, and the cracks on the surface of the dam body are monitored and analyzed by combining an image processing technology. In addition, a fracture monitoring data sharing platform is established, and the fracture monitoring data in the region is shared and uploaded, so that the centralized analysis and management of a drainage basin management mechanism are facilitated. Therefore, the invention uses a group of gears and gear conveyer belt devices arranged on the top of the upstream dam to make the shooting device fixed on the gear conveyer belt realize transverse movement, and uses the assembled electrified magnet wire sleeve and the gear trolley to make the shooting device arranged on the gear trolley realize vertical movement. An underwater high-definition camera is used as an image acquisition tool, and full-coverage mobile shooting of the underwater high-definition camera is realized by adopting a plurality of groups of gear transmission devices.
Claims (6)
1. The use method of the concrete arch dam underwater crack electronic control itinerant monitoring device is characterized by comprising the following steps of:
(1) an electric control itinerant monitoring device for underwater cracks of a concrete arch dam is constructed and comprises a transverse moving device, a vertical moving device and a gear trolley, wherein the transverse moving device is fixed at the top of the dam and is connected with a vertical connecting column through a transverse connecting block at the bottom of the transverse moving device; the transverse moving device comprises a power gear and a driven gear, a gear conveyor belt is sleeved outside the power gear and the driven gear, a transverse connecting block is fixed at the bottom of the gear conveyor belt, the power gear and the driven gear are respectively fixed with an upright post arranged at the top of the dam through two gear supports, and a gear connecting shaft is connected between the two gear supports; the vertical moving device comprises a plurality of sections of assembled sleeves, a vertical connecting column is fixed at the top of each assembled sleeve, an electromagnetic wire sleeve is arranged in each assembled sleeve, a gear rack is arranged on one side of each assembled sleeve, a gear trolley is connected to each gear rack, and the gear trolley is fixed on the gear rack on the outer side of each sleeve through electromagnetic force;
(2) installing a transverse moving device, fixing three upright columns on the dam crest, respectively installing fixed gear brackets on the three upright columns, finally assembling a gear conveyor belt, a power gear and two driven gears, and respectively connecting and fixing the three upright columns with the three gear brackets through three gear connecting shafts;
(3) assembling a vertical moving device, switching on an electromagnetic wire sleeve power supply, and fixing a gear trolley on a gear rack on the outer side of a sleeve through electromagnetic force;
(4) fixing a transverse connecting block on a gear transmission belt, fixing a vertical connecting column on the transverse connecting block, and fixing a vertical moving device at the other end of the vertical connecting column;
(5) the power supply of the power gear is switched on, so that the power gear drives the gear conveyor belt and the vertical moving device to move transversely;
(6) when the underwater high-definition camera transversely rotates for 1-2 m, the power gear power supply is turned off, the electrified magnetic wire power supply is controlled to be sequentially turned on through the remote sensing switch, the gear trolley descends at a constant speed, the underwater high-definition camera starts to shoot, the position sensor collects the position of the underwater camera, and meanwhile, workers on the surface check the effect of underwater shot images through VR equipment;
(7) after shooting is finished, caching and compressing the video, collecting position data collected by a position sensor, and packaging and uploading shot image data and the position data to a web server and a data server;
(8) the method comprises the steps that monitoring management personnel download corresponding data on a web server for processing, firstly, a video format is converted into a picture format, then binarization processing is carried out on the picture, abnormal pictures selected by a program are led out after the picture is analyzed by the program, the monitoring management personnel carry out manual judgment on the abnormal pictures, and finally, analysis results and data in an analysis process are stored in a data server;
(9) establishing a three-dimensional model for the concrete arch dam, introducing crack monitoring data into a model database, and performing finite element structure calculation analysis;
(10) the user terminal can check the three-dimensional model and the crack monitoring result, check the model database, retrieve the monitoring information and realize the visualization of the monitoring data.
2. The use method of the concrete arch dam underwater crack electronic control itinerant monitoring device according to claim 1, wherein an LED lamp is further arranged on the gear trolley flat plate.
3. The use method of the concrete arch dam underwater crack electronic control itinerant monitoring device according to claim 1, wherein a gear external power supply is connected to the power gear.
4. The use method of the concrete arch dam underwater crack electronic control itinerant monitoring device according to claim 1, wherein the electromagnetic wire sleeve comprises an outer box, a magnet is arranged in the outer box, an electrified wire is wound on the magnet, and a power supply is arranged on the electrified wire.
5. The use method of the concrete arch dam underwater crack electronic control itinerant monitoring device according to claim 4, wherein the outer box is made of polyvinyl chloride.
6. The use method of the concrete arch dam underwater crack electronic control itinerant monitoring device according to claim 1, wherein the assembled sleeves are connected through high-strength bolts, and at least two groups of electromagnetic wire sleeves are arranged in each assembled sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910456844.XA CN110132151B (en) | 2019-05-29 | 2019-05-29 | Concrete arch dam underwater crack electric control itinerant monitoring device and using method thereof |
Applications Claiming Priority (1)
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