Multi-mode pavement crack detection equipment based on visible light and infrared thermal imaging

Abstract

The utility model relates to the technical field of road detection, in particular to multi-mode road surface crack detection equipment based on visible light and infrared thermal imaging, which comprises a detection equipment body, a moving frame, an assembling device, a disassembling device and a moving device, the visible light imaging unit and the infrared thermal imaging unit are installed at the left end and the right end of the lower portion of the synchronous control unit respectively, the controller is installed at the top end of the detection equipment body, and due to the fact that the ends of locking blocks are designed to be round corners, the locking blocks can automatically slide towards the two sides in the downward pressing process of the detection equipment body; the locking blocks enter the moving grooves, the sliding blocks at the two ends of the locking blocks move inwards along the sliding grooves and compress the springs, when the locking blocks reach the positions of the locking grooves, under the action of the springs, the two sets of locking blocks can be rebounded and embedded into the two sets of locking grooves, and locking of the detection equipment body is completed.

Description

TECHNICAL FIELD

[0001] The utility model relates to road detection technical field, concretely is a kind of multimodal road surface crack detection equipment based on visible light and infrared thermal imaging. BACKGROUND

[0002] As is known to all, with the increasing traffic flow, the maintenance and management of road infrastructure become particularly important.The traditional road surface crack detection method mainly relies on manual visual inspection, this method is not only inefficient, and is susceptible to human factors, resulting in inaccurate results, in recent years, automated detection equipment gradually become mainstream, they can cover large area of road in short time, and provide more accurate detection results.

[0003] The traditional single imaging technology (such as visible light photography) automated system, although can realize a certain degree of automation detection, but only visible light image is difficult to capture all types of cracks comprehensively, at the same time, due to the change of light conditions, such as shadow, reflection, etc., may also affect the reliability of detection results, and the existing detection equipment needs complex tools and steps in installation and disassembly process, increase the time and difficulty of operation, frequent assembly and disassembly not only reduce work efficiency, but also may cause equipment damage due to improper operation. SUMMARY

[0004] (I) technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides a kind of multimodal road surface crack detection equipment based on visible light and infrared thermal imaging.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model provides the following technical scheme: A kind of multi-modal road surface crack detection equipment based on visible light and infrared thermal imaging, including detection equipment body, mobile frame, assembly device, dismounting device and mobile device, the bottom end of the detection equipment body is equipped with the synchronous control unit, the lower left and right ends of the synchronous control unit are respectively equipped with the visible light imaging unit and the infrared thermal imaging unit, the top of the detection equipment body is equipped with the controller, the detection equipment body and the mobile frame are detachably connected by the assembly device and the dismounting device, the dismounting device includes locating groove, baffle, moving groove, locking block, locking groove, sliding slot, sliding block spring, and dismounting device, the top wall of the mobile frame is equipped with the locating groove that passes through up and down, the lower part side wall of the locating groove is equipped with a ring of the baffle, the left and right two end side walls of the locating groove are all equipped with the moving groove, the locking block is slidably installed in two groups of the moving groove, the end of two groups of the locking block is all rounded design, the left and right two end side walls of the detection equipment body are all equipped with the locking groove, the locking block and the locking groove are matched, the front and rear two end side walls of the locking block are all fixedly installed with sliding block, the front and rear two end side walls of the moving groove are all equipped with sliding slot, the sliding block and the sliding slot are slidably connected, the spring that supports the sliding block is installed in the sliding slot, the bottom wall of the mobile frame is equipped with support leg in four corners, the bottom wall of the support leg is equipped with the mobile device.

[0008] In order to dismount detection equipment body, the utility model improves, the dismounting device includes L type board, L type slot, rectangular slot and dial block, the top wall of two groups of the locking block is fixedly installed with the L type board, the L type slot that passes through the moving groove is opened in the mobile frame, the L type slot and the L type board are slidably connected, the top of the mobile frame is symmetrically opened with two groups of the rectangular slot that passes through the L type slot, the end of the L type board top wall away from the locking block is fixedly installed with the dial block, two groups of the dial block are slidably connected with two groups of the rectangular slot respectively.

[0009] In order to guide the installation of detection equipment body, the utility model improves, the front and rear two end side walls of the detection equipment body are all fixedly installed with guide column, the front and rear two end side walls of the locating groove are all equipped with guide slot, the guide slot and the guide column are slidably connected.

[0010] In order to guide the movement of sliding block, the utility model improves, the fixed column is installed in the sliding slot, the fixed column and the sliding block are slidably connected.

[0011] In order to facilitate the control of the moving direction of mobile frame, the utility model improves, one end side wall of the mobile frame is equipped with push handle.

[0012] Preferably, the utility model discloses, the visible light imaging unit is high resolution colour camera.

[0013] Preferably, the utility model discloses, the infrared thermal imaging unit is high performance infrared thermal imager.

[0014] In order to facilitate the mobile frame and fixed, the utility model discloses, the mobile device includes universal wheel and brake assembly, the bottom wall of supporting leg is installed universal wheel, be provided with brake assembly on universal wheel, brake assembly with universal wheel adaptation.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a kind of multi-modal road surface crack detection equipment based on visible light and infrared thermal imaging, with following beneficial effects:

[0017] The multi-modal road surface crack detection equipment based on visible light and infrared thermal imaging, simple insertion and locking mechanism can be completed in short time the installation and disassembly of detection equipment, greatly improve work efficiency, adopt the design of spring support slider and locking block, ensure the stable connection between detection equipment ontology and mobile frame, even in the process of moving also cannot be loose or fall off, synchronous control unit guarantees the time and space consistency of visible light image and infrared image, reduces the workload of image registration in later period, improves detection precision, combines the advantage of visible light imaging and infrared thermal imaging, can more comprehensively capture road surface condition, especially for crack and other defects hidden under surface, provides more accurate diagnostic information.

[0018] The multi-modal road surface crack detection equipment based on visible light and infrared thermal imaging, through the design of the dismounting device, the operator only needs to simply push to unlock locking block by the design of the dial block, greatly simplifies dismounting process, saves time and effort, whole dismounting process does not need to use complex tool, improves the convenience of operation, provides great convenience for routine maintenance and overhaul. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is main structure schematic diagram of the utility model;

[0020] Figure 2 It is detection equipment ontology three-dimensional structure schematic diagram of the utility model;

[0021] Figure 3 It is mobile frame half cut three-dimensional structure schematic diagram of the utility model;

[0022] Figure 4 It is the utility model in Figure 3An enlarged structural schematic view of the local A.

[0023] In the figure: 1, detection equipment body; 2, moving frame; 3, synchronous control unit; 4, visible light imaging unit; 5, infrared thermal imaging unit; 6, controller; 7, positioning groove; 8, baffle; 9, moving groove; 10, locking block; 11, locking groove; 12, sliding groove; 13, sliding block; 14, spring; 15, support leg; 16, L-shaped plate; 17, L-shaped groove; 18, rectangular groove; 19, dial block; 20, guide column; 21, guide groove; 22, fixed column; 23, push handle; 24, universal wheel; 25, brake assembly. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figures 1-4A kind of multi-modal road surface crack detection equipment based on visible light and infrared thermal imaging, including detection equipment body 1, mobile frame 2, assembly device, disassembly device and mobile device, the bottom end of the detection equipment body 1 is equipped with the synchronous control unit 3, the lower left and right ends of the synchronous control unit 3 are respectively equipped with the visible light imaging unit 4 and the infrared thermal imaging unit 5, the top end of the detection equipment body 1 is equipped with the controller 6, the detection equipment body 1 and the mobile frame 2 are detachably connected by the assembly device and the disassembly device, the disassembly device includes positioning groove 7, baffle 8, moving groove 9, locking block 10, locking groove 11, sliding groove 12, sliding block 13 spring 14 and disassembly device, the top wall of the mobile frame 2 is equipped with the through positioning groove 7, the lower part side wall of the positioning groove 7 is equipped with a circle of the baffle 8, the left and right end side walls of the positioning groove 7 are both equipped with the moving groove 9, the locking block 10 is slidably installed in two groups of the moving groove 9, the end of two groups of the locking block 10 is designed as rounded corner, the left and right end side walls of the detection equipment body 1 are both equipped with the locking groove 11, the locking block 10 and the locking groove 11 are matched, the front and rear end side walls of the locking block 10 are both fixedly installed with sliding block 13, the front and rear end side walls of the moving groove 9 are both equipped with sliding groove 12, the sliding block 13 and the sliding groove 12 are slidably connected, the spring 14 supporting the sliding block 13 is installed in the sliding groove 12, the bottom wall of the mobile frame 2 is installed with support leg 15, the bottom wall of the support leg 15 is installed with the mobile device, in the embodiment, when using, detection equipment body 1 is placed on the top wall of mobile frame 2, then detection equipment body 1 is aligned with positioning groove 7, detection equipment body 1 is pushed, so that its bottom is completely entered into positioning groove 7, the baffle 8 limits the corner of detection equipment body 1, so that its detection equipment body 1 is placed in positioning groove 7, since the end of locking block 10 is designed as rounded corner, it will automatically slide to both sides in the process of detection equipment body 1 pressing down, so that locking block 10 enters moving groove 9, sliding block 13 at the end of locking block 10 moves inward along sliding groove 12 and compresses spring 14, when locking block 10 reaches the position of locking groove 11, under the action of spring 14, two groups of locking block 10 will rebound and embed in two groups of locking groove 11, the locking of detection equipment body 1 is completed, i.e., the installation of detection equipment body 1 and mobile frame 2 is completed, start the whole detection system by controller 6, including visible light imaging unit 4, infrared thermal imaging unit 5 and synchronous control unit 3, ensure that all sensors work normally, and necessary calibration and parameter setting are carried out, then detection equipment body 1 is driven by mobile device to move on the road surface to be detected, in the moving process, visible light imaging unit 4 and infrared thermal imaging unit 5 synchronously collect road surface images, synchronous control unit 3 ensures that two types of images are accurately aligned at the same time point, so as to subsequent data processing and analysis, the collected data is transmitted to controller 6,The built-in algorithm and model are used for preprocessing, feature extraction, fusion decision, etc. operations, automatically identify and classify cracks, evaluate the severity, and generate a detailed detection report. The operator can view the detection progress and results in real time through the user interface on the controller 6.

[0026] In actual use, the detection equipment body 1 is further disassembled, in this embodiment, the disassembly device includes an L-shaped plate 16, an L-shaped groove 17, a rectangular groove 18, and a push block 19, the top wall of the two groups of locking blocks 10 is fixedly installed with the L-shaped plate 16, the L-shaped groove 17 penetrating through the moving groove 9 is opened in the moving frame 2, the L-shaped groove 17 and the L-shaped plate 16 are in sliding connection, the top end of the moving frame 2 is symmetrically provided with two groups of rectangular grooves 18 penetrating through the L-shaped groove 17, the L-shaped plate 16 is fixedly installed with the push block 19 away from one end of the locking block 10, and the two groups of push blocks 19 are respectively in sliding connection with the two groups of rectangular grooves 18, when it is necessary to disassemble the detection equipment body 1 and the moving frame 2, the two groups of push blocks 19 are manually pushed away from each other, and the two groups of push blocks 19 slide outward along the two groups of rectangular grooves 18, at this time, the L-shaped plate 16 drives the locking block 10 to move synchronously in the L-shaped groove 17, overcomes the action force of the spring 14, and makes the locking block 10 exit from the locking groove 11 on the side wall of the detection equipment body 1, then the detection equipment body 1 is lifted by hand, the bottom of the detection equipment body 1 is taken out from the positioning groove 7 of the moving frame 2, and the disassembly of the detection equipment body 1 is completed, through the design of the push block 19, the operator only needs to simply push to unlock the locking block 10, greatly simplifies the disassembly process, and saves time and energy.

[0027] In actual use, the installation of the detection equipment body 1 is further guided, in this embodiment, the front and rear end side walls of the detection equipment body 1 are fixedly installed with guide columns 20, the front and rear end side walls of the positioning groove 7 are provided with guide grooves 21, and the guide grooves 21 and the guide columns 20 are in sliding connection, before the detection equipment body 1 is placed into the positioning groove 7, the guide column 20 is first aligned with the guide groove 21, and the design of the guide column 20 and the guide groove 21 ensures that the detection equipment body 1 always maintains the correct direction and position during the installation process, avoiding deviation or misplacement caused by improper manual operation. This not only improves the installation accuracy, but also reduces the time and workload of later adjustment. The close cooperation of the guide column 20 and the guide groove 21 can effectively prevent the detection equipment body 1 from moving horizontally or vertically during equipment operation, ensuring that it always remains in a stable working state.

[0028] In actual use, the movement of the sliding block 13 is further guided. In this embodiment, a fixed column 22 is installed in the sliding groove 12, and the fixed column 22 is in sliding connection with the sliding block 13. The sliding connection between the fixed column 22 and the sliding block 13 can ensure that the sliding block 13 always maintains linear motion during movement, avoiding deviation caused by uneven inner surface of the sliding groove 12 or other factors. This not only improves the movement accuracy of the sliding block 13, but also ensures that the locking block 10 can accurately embed or exit the locking groove 11, enhancing the reliability of the device.

[0029] In actual use, the movement direction of the moving frame 2 is further facilitated to control. In this embodiment, a push handle 23 is installed on one end side wall of the moving frame 2. The design of the push handle 23 allows the operator to control the movement direction of the moving frame 2 through simple push-pull actions, without the need to bend over or crouch down for operation, thereby reducing physical burden and improving work efficiency.

[0030] Preferably, in this embodiment, the visible light imaging unit 4 is a high-resolution color camera. The high-resolution color camera can capture more detailed image details, including road surface texture, color changes, and tiny cracks. High-resolution images provide more information for computer vision algorithms, making feature extraction more accurate. For example, edge detection, texture analysis, and other algorithms can more accurately identify the morphology and location of cracks in high-resolution images.

[0031] Preferably, in this embodiment, the infrared thermal imaging unit 5 is a high-performance infrared thermal imager. The high-performance infrared thermal imager has higher spatial resolution and temperature resolution, capable of capturing more detailed temperature changes and details, which is very important for detecting tiny cracks, cracks, and potential internal damage such as delamination or cavities. High-resolution images provide clearer temperature distribution maps, making cracks and other defects more obvious in the images, facilitating subsequent analysis and identification.

[0032] In actual use, the moving frame 2 is further facilitated to move and fix. In this embodiment, the moving device includes universal wheels 24 and brake assemblies 25. The universal wheels 24 are installed on the bottom wall of the support legs 15, and the brake assemblies 25 are provided on the universal wheels 24. The brake assemblies 25 are adapted to the universal wheels 24. The design of the universal wheels 24 allows the moving frame 2 to move freely in multiple directions, making it easier for the operator to adjust the position of the device, reducing physical exertion and operation difficulty. The locking function of the brake assemblies 25 can effectively prevent the moving frame 2 from moving accidentally during work, ensuring the stability of the device and the safety of the operator.

[0033] In order to explain the possible application scenarios, technical principles, specific schemes that can be implemented, purposes and effects, etc. of the present application in detail, the specific embodiments listed below are combined with the drawings for detailed description. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multimodal road surface crack detection device based on visible light and infrared thermal imaging, comprising a detection device body (1), a moving frame (2), an assembly device, a disassembly device, and a moving device, characterized in that: The bottom of the detection device body (1) is equipped with the synchronous control unit (3). The visible light imaging unit (4) and the infrared thermal imaging unit (5) are respectively installed on the left and right sides below the synchronous control unit (3). The top of the detection device body (1) is equipped with the controller (6). The detection device body (1) and the moving frame (2) are detachably connected by the assembly device and the disassembly device. The assembly and disassembly device includes a positioning groove (7), a baffle (8), a moving groove (9), a locking block (10), a locking groove (11), a sliding groove (12), a slider (13), a spring (14), and a disassembly device. The top wall of the moving frame (2) is provided with the positioning groove (7) that runs through the top and bottom. A baffle (8) is installed on the lower side wall of the positioning groove (7). The left and right sidewalls of the detection device body (1) are provided with the moving groove (9), and the locking block (10) is slidably installed in both sets of the moving grooves (9). The ends of both sets of the locking blocks (10) are rounded. The left and right sidewalls of the detection device body (1) are provided with the locking groove (11). The locking block (10) and the locking groove (11) are adapted to each other. The front and rear sidewalls of the locking block (10) are fixedly installed with sliders (13). The front and rear sidewalls of the moving groove (9) are provided with sliding grooves (12). The slider (13) and the sliding groove (12) are slidably connected. The sliding groove (12) is provided with the spring (14) supporting the slider (13). The four corners of the bottom wall of the moving frame (2) are provided with support legs (15). The bottom wall of the support legs (15) is provided with the moving device.

2. The multimodal road surface crack detection device based on visible light and infrared thermal imaging according to claim 1, characterized in that: The disassembly device includes an L-shaped plate (16), an L-shaped groove (17), a rectangular groove (18), and a lever (19). The L-shaped plate (16) is fixedly installed on the top wall of the two sets of locking blocks (10). The L-shaped groove (17) that passes through the moving groove (9) is opened in the moving frame (2). The L-shaped groove (17) and the L-shaped plate (16) are slidably connected. The top of the moving frame (2) is symmetrically provided with two sets of rectangular grooves (18) that pass through the L-shaped groove (17). The lever (19) is fixedly installed on the top wall of the L-shaped plate (16) away from the locking block (10). The two sets of levers (19) are slidably connected to the two sets of rectangular grooves (18) respectively.

3. The multimodal road surface crack detection device based on visible light and infrared thermal imaging according to claim 2, characterized in that: The front and rear side walls of the detection equipment body (1) are fixedly installed with guide columns (20), and the front and rear side walls of the positioning groove (7) are provided with guide grooves (21). The guide grooves (21) and the guide columns (20) are slidably connected.

4. The multimodal road surface crack detection device based on visible light and infrared thermal imaging according to claim 3, characterized in that: A fixing column (22) is installed in the groove (12), and the fixing column (22) and the slider (13) are slidably connected.

5. The multimodal pavement crack detection device based on visible light and infrared thermal imaging according to claim 4, characterized in that: A push handle (23) is installed on one side wall of the movable frame (2).

6. The multimodal pavement crack detection device based on visible light and infrared thermal imaging according to claim 5, characterized in that: The visible light imaging unit (4) is a high-resolution color camera.

7. The multimodal pavement crack detection device based on visible light and infrared thermal imaging according to claim 6, characterized in that: The infrared thermal imaging unit (5) is a high-performance infrared thermal imager.

8. The multimodal pavement crack detection device based on visible light and infrared thermal imaging according to claim 7, characterized in that: The mobile device includes casters and a brake assembly (25). The casters (24) are mounted on the bottom wall of the support leg (15). The brake assembly (25) is provided on the casters (24) and is adapted to the casters (24).

Images