Intelligent scanning system for structural size of highway box girder for girder yard and operation method

Abstract

The invention provides a highway box girder structure size intelligent scanning system for a girder field and an operation method, and relates to the technical field of constructional engineering.The highway box girder structure size intelligent scanning system for the girder field and the operation method comprise a measurement module, a modeling module, an analysis module and an evaluation module; the measuring module is provided with a mounting frame capable of moving in the length direction of the highway box girder, and a sliding seat used for mounting the radar is slidably mounted in the positioning sliding groove; the mounting groove is formed in the inner wall of the mounting frame to mount the rack, the sliding groove is formed in the positioning plate to mount the sliding seat, the sliding seat can be driven by the second motor to reciprocate in the sliding groove, then local scanning is conducted on the box girder through the radar, and the box girder can be subjected to multiple times of local scanning by moving the mounting frame; and the modeling module and the analysis module are arranged, so that point cloud data measured by the measurement module can be modeled into a box girder model, and the box girder model is compared with a pre-stored box girder model.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, and in particular to an intelligent scanning system for structural dimensions of a highway box girder used in a beam yard and an operating method. Background Art

[0002] With the rapid development of transportation construction, highway bridges, as important transportation infrastructure, have a construction quality and efficiency that is directly related to the perfection of the transportation network and the improvement of transportation capacity. In highway bridge construction, box girders are a common bridge structure form, and the accuracy and consistency of their structural dimensions are crucial to ensuring the safety and stability of the bridge. The traditional box girder structure dimension measurement method mainly relies on manual measurement using measuring tools. This method is not only inefficient, but also easily affected by human factors, resulting in large errors in the measurement results.

[0003] In recent years, with the rapid development of computer vision technology and artificial intelligence technology, intelligent scanning systems have been widely used in various fields. By combining image recognition, three-dimensional reconstruction and other technologies, intelligent scanning systems can achieve fast and accurate measurement of object structural dimensions. However, in general technology, most of the intelligent scanning systems for highway box girder structural dimensions used in beam yards cannot facilitate users to directly obtain comparison data between the manufactured box girder and the standard model, and most of the existing scanning systems require the cooperation of multiple people, which is not convenient for users to directly and simply scan and measure the box girder structure. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent scanning system and operation method for the structural dimensions of a highway box girder used in a beam yard, aiming to solve the problem that the intelligent scanning system for the structural dimensions of a highway box girder used in a beam yard in general technology is inconvenient for comparison and operation.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the intelligent scanning system and operation method of the structural dimension of a highway box girder used in the beam yard include: a measuring module, a modeling module, an analyzing module and an evaluating module, the measuring module has a mounting frame that can be moved along the length direction of the highway box girder, a rack is fixedly installed on the inner wall of the mounting frame, positioning plates are fixedly installed at the two edges of the inner wall of the mounting frame, a positioning slot is provided inside the positioning plate, a sliding seat for installing a radar is slidably installed inside the positioning slot, the sliding seat slides from one end of the slot to the other end to scan a part of the box girder, the mounting frame is moved so that the sliding seat slides from one end of the slot to the other end multiple times to scan the entire box girder and generate point cloud data; the modeling module is used to model the point cloud data measured by the radar; the analyzing module compares the modeled box girder model with the pre-stored standard model to obtain comparison data; the evaluating module is used to evaluate the comparison data and send the evaluation result to the user.

[0006] The beneficial effect is: by opening a mounting groove on the inner wall of the mounting frame to install the rack, positioning plates are set on both sides of the inner wall of the mounting frame, and a slide groove is opened inside the positioning plate to install the sliding seat, and a radar and a gear meshing with the rack are set on the sliding seat, and the sliding seat can be driven by a second motor to reciprocate in the slide groove, and then the box beam is scanned locally by the radar, and the mobile mounting frame can perform multiple local scans on the box beam, thereby achieving the purpose of complete scanning and facilitating scanning. By setting a modeling module and an analysis module, the point cloud data measured by the measurement module can be modeled into a box beam model and compared with the pre-stored box beam model, which is convenient for users to measure the manufactured box beam and compare it with the standard model, so as to more intuitively measure the defects and errors of the manufactured box beam.

[0007] A further technical solution of the present invention is that the sliding seat has a gear meshing with the rack and a second motor for driving the gear.

[0008] A further technical solution of the present invention is that a first connecting shaft for installing a gear is installed at the output end of the second motor, a second connecting shaft is fixedly installed at the tail of the second motor and the other side of the connecting block, and rollers for moving the sliding seat as a whole are rotatably installed at the ends of the first connecting shaft and the second connecting shaft, and the rollers are slidably installed inside the positioning groove.

[0009] A further technical solution of the present invention is that a connecting block is fixedly installed on one side of the outer surface of the second motor, and a fixing plate is installed on the second motor and the connecting block through the fixing block, and the fixing plate is used to install and fix the radar.

[0010] A further technical solution of the present invention is that a first mounting plate for mounting a moving wheel is fixedly installed at the bottom of both ends of the mounting frame, a driven gear is fixedly installed on the outer surface of the moving wheel shaft located at the outer part of the first mounting plate, and a mounting shaft for mounting a driving gear is rotatably installed on the outer side surface of the mounting frame, the driving gear and the driven gear are meshed with each other, and the number of teeth of the driving gear is multiple times the number of teeth of the driven gear, the driving gear has a continuous tooth missing section so that the driven gear meshed with it temporarily stops rotating after several turns for measurement, and a first driving motor for driving it is fixedly installed at one end of the mounting shaft.

[0011] A further technical solution of the present invention is that a reinforcing leg is fixedly installed on the outer surface of the mounting frame, a reinforcing rod is fixedly installed between the reinforcing leg and the mounting frame, two second mounting plates are fixedly installed on the bottom of the reinforcing leg, auxiliary wheels for increasing the stability of the mounting frame are rotatably installed inside the two second mounting plates, and connecting strips for installing baffles are fixedly installed on the outer surfaces of the mounting frame and the two reinforcing legs, and the baffles are used to shield and protect the driving gear and the driven gear.

[0012] The beneficial effect is: by arranging a first motor at the bottom of the mounting frame to drive the mounting shaft, and arranging a driving gear on the mounting shaft, and arranging a driven gear on the rotating shaft of the moving wheel, and the number of teeth of the driving gear is multiple times the number of teeth of the driven gear, and the driving gear has a continuous tooth missing section, so that the mounting frame stops after moving a certain distance to provide a complete scan of the box beam locally, and a complete scan of multiple sections of the box beam is obtained by continuous stopping, thereby obtaining complete data of the box beam.

[0013] The operation method of the intelligent scanning system for the structural dimensions of a highway box girder used in a beam yard includes the following steps: Step 1: Scan and measure the highway box girder through the measurement module and generate point cloud data; Step 2: The modeling module extracts features from the received point cloud data and models it into a box girder model based on the extracted features; Step 3: The analysis module compares the box girder model obtained by modeling with the pre-stored box girder model and obtains comparison data; Step 4: The evaluation module confirms whether the comparison data is within the set value range. When the comparison data exceeds the set value range, an unqualified label is added to the comparison data, and a striking color or ringtone is added to remind the user; when the comparison data is within the set value range, a qualified label is added to the comparison data and sent to the user.

[0014] A further technical solution of the present invention is that, in step one, the mounting frame is moved to make the sliding seat slide from one end of the slide groove to the other end multiple times to scan the box girder multiple times, and the multiple scanning results are used to generate complete box girder point cloud data.

[0015] A further technical solution of the present invention is that in step two, the feature extraction refers to extracting key features from point cloud data, such as planes, edges, corners, etc., which helps to further analyze and process the point cloud data. These features can describe the shape, texture and other properties of the point cloud.

[0016] A further technical solution of the present invention is that in step three, the comparison data includes the surface defects of the manufactured box girder and the error between the manufactured box girder and the standard model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the second embodiment of the present invention.

[0019] Figure 3 It is a schematic structural diagram of a driving gear and a driven gear in a specific embodiment of the present invention.

[0020] Figure 4 It is a structural schematic diagram of a sliding seat in a specific embodiment of the present invention.

[0021] Figure 5 It is a system diagram of the present invention.

[0022] Figure 6 is a flow chart of the method of operation of the present invention.

[0023] In the figure: 1-mounting frame, 101-support section, 102-transition section, 103-connecting section, 11-mounting groove, 12-rack, 13-positioning plate, 131-positioning slide groove, 14-first mounting plate, 15-moving wheel, 151-driven gear, 16-mounting shaft, 161-driving gear, 162-missing section, 17-first drive motor, 18-reinforcement leg, 181-reinforcement rod, 182-second mounting plate, 183-auxiliary wheel, 19-baffle, 191-connecting strip, 2-sliding seat, 21-second motor, 22-gear, 23-first connecting shaft, 24-radar, 25-connecting block, 26-fixed plate, 261-fixed block, 27-second connecting shaft, 28-roller. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-Figure 5 As shown, the intelligent scanning system for the structural dimensions of a highway box girder used in a beam yard comprises a measuring module, a modeling module, an analyzing module and an evaluating module. The measuring module comprises a mounting frame 1. The mounting frame 1 is in the shape of a semi-circular rectangle as a whole. The mounting frame 1 can move along the length direction of the box girder. A mounting groove 11 is provided on the inner wall of the mounting frame 1. A rack 12 is installed inside the mounting groove 11. Positioning plates 13 are fixedly installed at both edges of the inner wall of the mounting frame 1. A positioning slot 131 is provided inside the positioning plate 13. A sliding seat 2 is slidably installed inside the positioning slot 131. The sliding seat 2 has a gear 22 meshing with the rack 12 and a second motor 21 for driving the gear 22. A radar 24 for scanning the dimensions of the box girder is installed on the sliding seat 2. The second motor 21 drives the sliding seat 2 to reciprocate along the positioning slot 131 to scan the highway box girder and generate point cloud data.

[0026] like Figure 3 As shown, the mounting frame 1 has two supporting sections 101, both of which are in a vertical state, and arc-shaped transition sections 102 are fixedly installed on the top of the two supporting sections 101. The other ends of the two transition sections 102 are connected by a connecting section 103, and the connecting section 103 is horizontal to the ground. When in use, the sliding seat 2 slides from the bottom of one of the supporting sections 101 through the two transition sections 102 and the connecting section 103 to the bottom of the other supporting section 101, thereby completely scanning the box girder.

[0027] The bottom of the two support sections 101 is fixedly installed with a first mounting plate 14, and a moving wheel 15 for moving the mounting frame 1 as a whole is rotatably installed inside the first mounting plate 14, and one end of the rotating shaft of the moving wheel 15 extends to a part of the outside of the first mounting plate 14, and a driven gear 151 is fixedly installed on the outer surface of the rotating shaft of the moving wheel 15 located on the outer part of the first mounting plate 14, and a mounting shaft 16 for installing a driving gear 161 is rotatably installed on the outer side surface of the support section 101, and the driving gear 161 and the driven gear 151 are meshed with each other, and the mounting shaft 1 6 is fixedly mounted with a first driving motor 17 for driving it. In this embodiment, the transmission ratio of the driving gear 161 to the driven gear 151 is 1:3, and the driving gear 16 has a continuous tooth missing section 162 of one-third, so that the moving wheel 15 rotates two circles and then stops one circle, so that the sliding seat 2 can slide from one of the supporting sections 101 to the bottom of another supporting section 101, thereby performing a complete scan of the box beam locally through the radar 24, repeating this step to obtain local data of multiple sections of the box beam, and then obtaining complete box beam data.

[0028] like Figure 3 As shown, reinforcing legs 18 are fixedly installed on both sides of the two support sections 101, and the reinforcing legs 18 on both sides of the same support section 101 are symmetrically distributed. A reinforcing rod 181 is also fixedly installed between each reinforcing leg 18 and the support section 101, so that the reinforcing leg 18, the support section 101 and the reinforcing rod 181 together form a triangle to improve the stability of the reinforcing leg 18, and two second mounting plates 182 are fixedly installed on the bottom of each reinforcing leg 18, and auxiliary wheels 183 for increasing the travel stability of the mounting frame 1 are rotatably installed inside the two second mounting plates 182 to avoid tipping over during the movement of the mounting frame 1, and connecting strips 191 for installing baffles 19 are fixedly installed on the outer surfaces of the mounting frame 1 and the two reinforcing legs 18, and the baffles 19 are used to shield and protect the driving gear 161 and the driven gear 151, and the first drive motor 17 is fixedly installed on the outer surface of the baffle 19, and the mounting shaft 16 is rotatably installed inside the baffle 19.

[0029] like Figure 4As shown, the sliding seat 2 also includes a first connecting shaft 23 installed at the output end of the second motor 21 for installing the gear 22, a connecting block 25 is fixedly installed on one side of the outer surface of the second motor 21, and a fixing plate 26 is installed on the second motor 21 and the connecting block 25 through a fixing block 261. The fixing plate 26 is used to install and fix the radar 25, and a second connecting shaft 27 is fixedly installed on the tail of the second motor 21 and the other side of the connecting block 25. The ends of the first connecting shaft 23 and the second connecting shaft 27 are rotatably installed with rollers 28 for moving the sliding seat 2 as a whole, and the rollers 28 are slidably installed inside the positioning groove 131.

[0030] The modeling module is used to read the point cloud data measured by the radar 24 and to perform modeling based on the measured point cloud data. The analysis module is used to compare the box girder model modeled based on the point cloud data with the pre-stored standard model and send the comparison data to the evaluation module. The evaluation module compares the modeling of the point cloud data with the comparison data of the standard model to see if they are within the set value range. If they are within the set value range, a qualified label is added and sent to the user. If they exceed the set range, an unqualified label is added and a striking color or ringtone is added to remind the user.

[0031] like Figure 6 As shown, the operation method of the intelligent scanning system for the structural dimensions of a highway box girder used in a beam yard includes the following steps: Step 1: Scan and measure the highway box girder through the measurement module and generate point cloud data; Step 2: The modeling module extracts features from the received point cloud data and models it into a box girder model based on the extracted features; Step 3: The analysis module compares the box girder model obtained by modeling with the pre-stored box girder model and obtains comparison data; Step 4: The evaluation module confirms whether the comparison data is within the set value range. When the comparison data exceeds the set value range, an unqualified label is added to the comparison data, and a striking color or ringtone is added to remind the user; when the comparison data is within the set value range, a qualified label is added to the comparison data and sent to the user.

[0032] In step 1, the mobile mounting frame 1 makes the sliding seat 2 slide from one end to the other end of the slide slot 131 for multiple times to scan the box girder multiple times, and the multiple scanning results are used to generate complete box girder point cloud data.

[0033] In step 2, feature extraction refers to extracting key features from point cloud data, such as planes, edges, corners, etc., which helps to further analyze and process the point cloud data. These features can describe the shape, texture and other properties of the point cloud.

[0034] In step three, the comparison data includes the surface defects of the manufactured box girder and the error between the manufactured box girder and the standard model.

[0035] In this specific embodiment, the rack 12 is installed by opening a mounting groove 11 on the inner wall of the mounting frame 1, positioning plates 13 are set on both sides of the inner wall of the mounting frame 1, and a slide groove 131 is opened inside the positioning plate 13 to install the sliding seat 2, and a radar 24 and a gear 22 meshing with the rack 12 are set on the sliding seat 2, and the sliding seat 2 can be driven by the second motor 21 to reciprocate in the slide groove 131, and then the box beam is scanned locally by the radar 24, and the mobile mounting frame 1 can perform multiple local scans on the box beam, thereby achieving the purpose of complete scanning and facilitating scanning. By setting a modeling module and an analysis module, the point cloud data measured by the measurement module can be modeled into a box beam model and compared with the pre-stored box beam model, which is convenient for users to measure the manufactured box beam and compare it with the standard model, so as to more intuitively measure the defects and errors of the manufactured box beam.

Claims

1. The intelligent scanning system for the structural dimensions of highway box beams used in beam yards is characterized by: include: The measuring module comprises a mounting frame (1) movable along the length direction of a highway box girder, a rack (12) being fixedly mounted on the inner wall of the mounting frame (1), positioning plates (13) being fixedly mounted on both edges of the inner wall of the mounting frame (1), a positioning slot (131) being provided inside the positioning plate (13), a sliding seat (2) for mounting a radar (24) being slidably mounted inside the positioning slot (131), the sliding seat (2) sliding from one end of the slot (131) to the other end to scan a part of the box girder, and the mounting frame (1) being moved so that the sliding seat (2) slides from one end of the slot (131) to the other end multiple times to scan the entire box girder and generate point cloud data; A modeling module, used for modeling point cloud data measured by the radar (24); The analysis module compares the completed box girder model with the pre-stored standard model to obtain comparative data; The evaluation module is used to evaluate the comparison data and send the evaluation results to the user.

2. The intelligent scanning system for the structural dimensions of highway box beams used in beam yards according to claim 1 is characterized in that: The sliding seat (2) has a gear (22) meshing with the rack (12) and a second motor (21) for driving the gear (22).

3. The intelligent scanning system for the structural dimensions of highway box beams used in beam yards according to claim 2 is characterized in that: The output end of the second motor (21) is provided with a first connecting shaft (23) for installing the gear (22); the tail of the second motor (21) and the other side of the connecting block (25) are both fixedly provided with a second connecting shaft (27); the ends of the first connecting shaft (23) and the second connecting shaft (27) are both rotatably provided with rollers (28) for moving the sliding seat (2) as a whole; the rollers (28) are slidably provided inside the positioning slide groove (131).

4. The intelligent scanning system for the structural dimensions of highway box beams used in beam yards according to claim 2 is characterized in that: A connecting block (25) is fixedly mounted on one side of the outer surface of the second motor (21), and a fixing plate (26) is mounted on both the second motor (21) and the connecting block (25) via a fixing block (261), wherein the fixing plate (26) is used to install and fix the radar (25).

5. The intelligent scanning system for the structural dimensions of highway box beams used in beam yards according to claim 1 is characterized in that: A first mounting plate (14) for mounting a moving wheel (15) is fixedly mounted at the bottom of both ends of the mounting frame (1), a driven gear (151) is fixedly mounted on the outer surface of the rotating shaft of the moving wheel (15) located outside the first mounting plate (14), a mounting shaft (16) for mounting a driving gear (161) is rotatably mounted on the outer side surface of the mounting frame (1), the driving gear (161) and the driven gear (151) are meshed with each other, and the number of teeth of the driving gear (161) is multiple times the number of teeth of the driven gear (151), the driving gear (161) has a continuous tooth missing section (162), so that the driven gear (151) meshed with the driving gear (161) temporarily stops rotating after rotating several circles for measurement, and a first driving motor (17) for driving the driving gear (16) is fixedly mounted at one end.

6. The intelligent scanning system for the structural dimensions of highway box beams used in beam yards according to claim 1 is characterized in that: A reinforcing leg (18) is fixedly mounted on the outer surface of the mounting frame (1); a reinforcing rod (181) is fixedly mounted between the reinforcing leg (18) and the mounting frame (1); two second mounting plates (182) are fixedly mounted on the bottom of each of the reinforcing legs (18); auxiliary wheels (183) for increasing the stability of the mounting frame (1) are rotatably mounted inside the two second mounting plates (182); a connecting strip (191) for mounting a baffle plate (19) is fixedly mounted on the outer surfaces of the mounting frame (1) and the two reinforcing legs (18); the baffle plate (19) is used to shield and protect the driving gear (161) and the driven gear (151).

7. The operating method of the intelligent scanning system for the structural dimensions of a highway box girder used in a beam yard according to claims 1-6 is characterized in that: The following steps are involved: Step 1: Scan and measure the highway box girder through the measurement module and generate point cloud data; Step 2: The modeling module extracts features from the received point cloud data and models it into a box girder model based on the extracted features; Step 3: The analysis module compares the box girder model obtained by modeling with the pre-stored box girder model and obtains comparison data; Step 4: The evaluation module confirms whether the comparison data is within the set value range. When the comparison data exceeds the set value range, an unqualified label is added to the comparison data, and a striking color or ringtone is added to remind the user; when the comparison data is within the set value range, a qualified label is added to the comparison data and sent to the user.

8. The operating method of the intelligent scanning system for the structural dimensions of highway box beams used in beam yards according to claim 7 is characterized in that: In step one, the mounting frame (1) is moved to allow the sliding seat (2) to slide from one end of the slide groove (131) to the other end multiple times to scan the box girder multiple times, and the multiple scanning results are used to generate complete box girder point cloud data.

9. The method for operating the intelligent scanning system for the structural dimensions of a highway box girder for use in a beam yard according to claim 7 is characterized in that: In step 2, the feature extraction refers to extracting key features from the point cloud data, such as planes, edges, corners, etc., which helps to further analyze and process the point cloud data. These features can describe the shape, texture and other properties of the point cloud.

10. The operating method of the intelligent scanning system for the structural dimensions of a highway box girder used in a beam yard according to claim 7 is characterized in that: In step three, the comparison data includes the surface defects of the manufactured box girder and the error between the manufactured box girder and the standard model.

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