Road surface disease detection device using multi-sensor fusion

Abstract

The utility model discloses a road surface disease detection device of multi sensor fusion, specifically related to road disease detection technical field, including mobile frame body, the lower extreme of mobile frame body is installed with mounting block, the lower extreme of mounting block is installed with hoist column, the lower extreme of hoist column is installed with mounting plate, is provided with the push -back mechanism on the mounting plate, is provided with the push -and -pull block on the push -back mechanism, the upper end of mounting plate is installed with two support cylinders, the surface of push -and -pull block is installed with push -back rod, and push -back rod and support cylinder slidingly connect, and one end of two push -back rods away from push -and -pull block is installed with the shunt push -back, is provided with the wheel mechanism on mobile frame body and mounting block. The utility model discloses through V push -back to promote the road surface object, and it does not need to consume additional energy, directly relies on wheel rotation to drive gear, single tooth block and spring structure, makes push -back can not ceaseless telescopic before and after, and push -back changes the contact point with the road surface object through intermittent promotion, and it is pushed away to two sides, reduces the resistance, makes the device move more smooth and labor -saving.

Description

Technical Field

[0001] This utility model relates to the field of road defect detection technology, and more specifically, to a road surface defect detection device with multi-sensor fusion. Background Technology

[0002] Currently, highways are in constant operation after construction. However, due to issues such as the material ratios used during construction and the long-term wear and tear from vehicles, various road surface defects can occur. Road surface defect monitoring devices are designed to detect these defects, enabling people to perform appropriate maintenance and prevent traffic accidents.

[0003] Common multi-sensor fusion road surface defect detection devices can only use baffles to block debris on the road surface, but they lack the function of diverting and pushing objects. In actual detection, objects on the road surface will collide with the detection structures such as cameras and radar facing the road surface. At this time, the baffle will block the object and guide it to both sides. However, if the object is constantly pushed by the baffle due to its shape or weight, it will cause great resistance to the device, ultimately resulting in a surge in energy consumption.

[0004] In summary, to ensure smooth movement and reduce energy consumption, it is necessary to address the issue of some objects being pushed along by the baffles. This would allow the baffles to apply a certain pushing force to the objects as they move, thereby changing the contact point between them and successfully pushing the objects to the sides. Utility Model Content

[0005] The problem to be solved by the multi-sensor fusion road surface defect detection device provided by this utility model is that when an object is constantly pushed by a baffle due to its shape or weight, it will cause great resistance to the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a road surface defect detection device with multi-sensor fusion, comprising a movable frame, an installation block installed at the lower end of the movable frame, a lifting column installed at the lower end of the installation block, an installation plate installed at the lower end of the lifting column, a push plate mechanism provided on the installation plate, a push-pull block provided on the push plate mechanism, two support cylinders installed at the upper end of the installation plate, a push plate rod installed on the surface of the push-pull block, the push plate rod being slidably connected to the support cylinder, a diversion push plate installed at the end of the two push plate rods away from the push-pull block, and a wheel mechanism provided on the movable frame and the installation block.

[0007] In a preferred embodiment, the output end of the push plate mechanism is connected to the push-pull block. The push plate mechanism is used to control the horizontal movement of the diversion push plate. The push plate mechanism includes a sliding component and a reset component. The output end of the sliding component is connected to the push-pull block and is used to control the horizontal movement of the push-pull block. The output end of the reset component is connected to the sliding component and is used to control the sliding component to return to its initial position.

[0008] In a preferred embodiment, the sliding assembly includes two fixed blocks mounted on the upper end of the mounting plate, a slide rod mounted on the surface of the fixed blocks, and a single toothed block mounted on the outside of the slide rod, the single toothed block being slidably connected to the slide rod.

[0009] In a preferred embodiment, the reset assembly includes a limiting block mounted on the end of the slide bar away from the fixed block and a spring sleeved on the outside of the slide bar.

[0010] In a preferred embodiment, a wheel mechanism is used to drive the entire device to move. The wheel mechanism includes a front wheel assembly and a rear wheel assembly. The front wheel assembly is used to control the horizontal movement of the sliding assembly, and the rear wheel assembly is used to cooperate with the front wheel assembly to maintain the balance of the device.

[0011] In a preferred embodiment, the front wheel assembly includes a front axle mounted inside the mounting block, front wheels mounted at both ends of the front axle, and two drive gears mounted on the outside of the front axle, the drive gears meshing with a single tooth block.

[0012] In a preferred embodiment, the rear wheel assembly includes a rear axle mounted at the lower end of the mobile frame, rear wheels mounted at both ends of the rear axle, and a trailer hitch mounted on the end of the mobile frame near the mounting block.

[0013] In a preferred embodiment, a mounting frame is installed at the upper end of the mobile frame, a detection integration box is installed inside the mounting frame, a video capture camera is installed at the lower end of the detection integration box, a ground penetrating radar is installed at the lower end of the detection integration box, a laser scanner is installed at the lower end of the detection integration box, and a support rod is installed at the upper end of the detection integration box in a rectangular shape, with a photovoltaic panel installed at the upper end of the support rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention uses a V-shaped pusher plate to push objects on the road surface, preventing objects from colliding with the detection structure. It does not consume additional energy; the rotation of the wheels directly drives the gear, single-tooth block, and spring structure, allowing the pusher plate to continuously extend and retract. When it encounters an object on the road, the pusher plate does not push against it consistently but repeatedly pushes it, thus constantly changing the contact point between the pusher plate and the object, thereby pushing the object to both sides. This prevents the object from being continuously pushed by the pusher plate due to its shape and weight, greatly reducing the resistance of pushing and making the entire device move more smoothly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the frame structure of this utility model.

[0018] Figure 3 This is a bottom view of the integrated detection box of this utility model.

[0019] Figure 4 This is a schematic diagram of the wheel mechanism of this utility model.

[0020] Figure 5 This is a schematic diagram of the pushing component structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Movable frame; 11. Mounting block; 12. Lifting column; 13. Mounting plate; 14. Push-pull block; 15. Support cylinder; 16. Push plate rod; 17. Diverting push plate; 18. Mounting frame; 19. Detection integration box; 20. Image acquisition camera; 21. Ground penetrating radar; 22. Laser scanner; 23. Support rod; 24. Photovoltaic panel; 311. Fixing block; 312. Sliding rod; 313. Single tooth block; 321. Limiting block; 322. Spring; 411. Front axle; 412. Front wheel; 413. Drive gear; 421. Rear axle; 422. Rear wheel; 423. Tow hook. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5 A multi-sensor fusion road surface defect detection device includes a mobile frame 1, an installation block 11 installed at the lower end of the mobile frame 1, a lifting column 12 installed at the lower end of the installation block 11, an installation plate 13 installed at the lower end of the lifting column 12, a push plate mechanism provided on the installation plate 13, a push-pull block 14 provided on the push plate mechanism, two support cylinders 15 installed at the upper end of the installation plate 13, a push plate rod 16 installed on the surface of the push-pull block 14, the push plate rod 16 being slidably connected to the support cylinder 15, a diversion push plate 17 installed at the end of the two push plate rods 16 away from the push-pull block 14, and a wheel mechanism provided on the mobile frame 1 and the installation block 11.

[0024] It should be noted that the movable frame 1 constitutes the main load-bearing frame of the device. The sliding fit between the push rod 16 and the support cylinder 15 uses a low-friction coefficient material to ensure the horizontal movement accuracy of the diversion push plate 17. The wheel mechanism adopts a front and rear double wheel layout to ensure the movement stability of the device. When the front rotating shaft 411 drives the drive gear 413 to rotate, the drive gear 413 pushes the meshing single tooth block 313 to move towards the fixed block 311. At this time, the single tooth block 313 slides along the slide rod 312 and is pushed and pulled by the push and pull block 1. 4 drives the push plate rod 16 to move towards the fixed block 311, and the push plate rod 16 drives the diversion push plate 17 to move towards the mounting block 11. When the drive gear 413 rotates to a specific angle, the single tooth block 313 will disengage from it. At this time, the single tooth block 313 is quickly pushed back to its original position by the thrust of the spring 322. The single tooth block 313 then quickly pushes the diversion push plate 17 away from the mounting block 11 through the push-pull block 14 and the push plate rod 16. In this way, the diversion push plate 17 repeatedly pushes the objects on the road surface.

[0025] It is worth noting that the V-shaped structure design of the diversion pusher 17 can guide obstacles to both sides to avoid direct impact on the detection sensor. The mechanical linkage between the pusher mechanism and the wheel mechanism does not require an additional power source, thus reducing energy consumption.

[0026] Refer to the instruction manual appendix Figures 1 to 5 The output end of the push plate mechanism is connected to the push-pull block 14. The push plate mechanism is used to control the horizontal movement of the diversion push plate 17. The push plate mechanism includes a sliding component and a reset component. The output end of the sliding component is connected to the push-pull block 14. The sliding component is used to control the horizontal movement of the push-pull block 14. The output end of the reset component is connected to the sliding component. The reset component is used to control the sliding component to return to the initial position.

[0027] It should be noted that the sliding component directly drives the push-pull block 14 through linear displacement, and the reset component adopts mechanical elastic reset to ensure that the push plate mechanism automatically resets after a single action. The two work together to realize the reciprocating motion of the diversion push plate 17.

[0028] Refer to the instruction manual appendix Figure 5 The sliding assembly includes two fixed blocks 311 mounted on the upper end of the mounting plate 13, a slide rod 312 mounted on the surface of the fixed blocks 311, and a single tooth block 313 mounted on the outside of the slide rod 312. The single tooth block 313 is slidably connected to the slide rod 312.

[0029] It should be noted that the sliding connection between the single tooth block 313 and the slide rod 312 adopts a circular cross-section design to reduce frictional resistance. The fixing blocks 311 are symmetrically distributed at both ends of the mounting plate 13 to ensure that the slide rod 312 is subjected to balanced force.

[0030] Refer to the instruction manual appendix Figure 5The reset assembly includes a limiting block 321 installed at the end of the slide bar 312 away from the fixing block 311 and a spring 322 sleeved on the outside of the slide bar 312.

[0031] It should be noted that spring 322 is a compression spring, and the preload design must be greater than the movement resistance of the sliding component. The limit block 321 is fixed with a detachable screw to facilitate the replacement of spring 322.

[0032] Refer to the instruction manual appendix Figures 1 to 4 The wheel mechanism is used to drive the entire device to move. The wheel mechanism includes a front wheel assembly and a rear wheel assembly. The front wheel assembly is used to control the horizontal movement of the sliding assembly, and the rear wheel assembly is used to cooperate with the front wheel assembly to maintain the balance of the device.

[0033] It should be noted that the front wheel assembly drives the push plate mechanism, while the rear wheel assembly provides auxiliary support. The optimized wheelbase design of the front and rear wheels prevents the device from tipping over.

[0034] It is worth noting that the design of the front wheel active control push plate enables the action frequency of the diversion push plate 17 to be automatically synchronized with the travel speed.

[0035] Refer to the instruction manual appendix Figure 4 The front wheel assembly includes a front axle 411 installed inside the mounting block 11, front wheels 412 installed at both ends of the front axle 411, and two drive gears 413 installed on the outside of the front axle 411. The drive gears 413 mesh with single tooth blocks 313.

[0036] It should be noted that the drive gear 413 is fixed to the front shaft 411 by a keyway to ensure synchronous rotation with the front wheel 412. The gear module and the tooth pitch of the single tooth block 313 are strictly matched to avoid meshing jamming.

[0037] Refer to the instruction manual appendix Figure 4 The rear wheel assembly includes a rear axle 421 mounted on the lower end of the mobile frame 1, rear wheels 422 mounted on both ends of the rear axle 421, and a trailer hitch 423 mounted on one end of the mobile frame 1 near the mounting block 11.

[0038] It should be noted that the rear axle 421 is directly installed at the bottom of the mobile frame 1, the rear wheel 422 and the front wheel 412 are the same size, and the trailer hook 423 conforms to the standard towing interface and supports towing by external vehicles.

[0039] Refer to the instruction manual appendix Figure 3The upper end of the mobile frame 1 is equipped with a mounting frame 18, the inside of the mounting frame 18 is equipped with a detection integration box 19, the lower end of the detection integration box 19 is equipped with a screen acquisition camera 20, the lower end of the detection integration box 19 is equipped with a ground penetrating radar 21, the lower end of the detection integration box 19 is equipped with a laser scanner 22, the upper end of the detection integration box 19 is equipped with a rectangular support rod 23, and the upper end of the support rod 23 is equipped with a photovoltaic panel 24.

[0040] It should be noted that the image acquisition camera 20, ground-penetrating radar 21, and laser scanner 22 are positioned at the bottom of the detection integration box 19 to avoid blind spots in data acquisition. The image acquisition camera 20 can capture images of the road surface and upload the captured data to the host computer inside the detection integration box 19. The host computer will then upload the data to the backend server. The ground-penetrating radar 21 can emit radar waves towards the road surface and receive radar waves reflected from the ground. It will then convert the received reflected signals into digital signals for display and storage, thereby enabling further monitoring of road surface defects. The laser scanner 22 can scan the road surface and upload the scanned data to the host computer. The host computer will then upload the data to the backend server to form a 3D surface model. Then, a specific algorithm will be used to analyze and process road surface defects. The photovoltaic panel 24 is installed at an angle to maximize the light energy conversion efficiency. The photovoltaic panel 24 converts light energy into electrical energy and stores it in the battery inside the detection integration box 19, which then powers the system.

[0041] Working principle: When the device moves along the road surface via the front wheel 412 and the rear wheel 422, the front axle 411 rotates synchronously with the front wheel 412, driving the two drive gears 413 mounted on the front axle 411 to rotate. The drive gears 413 periodically mesh with the single tooth block 313, pushing the single tooth block 313 to slide along the slide rod 312 towards the fixed block 311. At this time, the spring 322 sleeved on the outside of the slide rod 312 is compressed, and the single tooth block 313 drives the push-pull block 14 to move horizontally, causing the push plate rod 16 to slide inside the support cylinder 15, thereby pulling the diverting push plate 17 back towards the mounting block 11. When the drive gear 413 rotates to the point of disengagement from the single tooth block 313, the spring 322 releases its elastic force, pushing the single tooth block 313 to quickly reset, and The diversion push plate 17 is pushed outward by the push-pull block 14 and the push rod 16, forming a high-frequency reciprocating motion. The V-shaped structure of the diversion push plate 17 applies intermittent thrust to road obstacles during the reciprocating motion, forcing the object to continuously change its contact point with the diversion push plate 17, ultimately pushing the object to both sides to divert traffic and avoid continuously obstructing the device's progress. At the same time, the detection integration box 19 in the mounting frame 18 captures road images through the bottom image acquisition camera 20, the ground penetrating radar 21 emits and receives underground reflected waves to detect internal defects, and the laser scanner 22 generates a 3D model of the road surface. After the data from the three sensors are fused, they are uploaded to the back-end server for defect analysis. The photovoltaic panel 24 on the top of the support rod 23 converts light energy into electrical energy, which is stored in the battery of the detection integration box 19 to power the entire device. The tow hook 423 supports external towing, ensuring the device's mobility in complex road conditions.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A road surface defect detection device using multi-sensor fusion, characterized in that: The system includes a movable frame (1), a mounting block (11) is installed at the lower end of the movable frame (1), a hoisting column (12) is installed at the lower end of the mounting block (11), a mounting plate (13) is installed at the lower end of the hoisting column (12), a push plate mechanism is provided on the mounting plate (13), a push-pull block (14) is provided on the push plate mechanism, two support cylinders (15) are installed at the upper end of the mounting plate (13), a push plate rod (16) is installed on the surface of the push-pull block (14), the push plate rod (16) is slidably connected to the support cylinder (15), a diversion push plate (17) is installed at the end of the two push plate rods (16) away from the push-pull block (14), and a wheel mechanism is provided on the movable frame (1) and the mounting block (11).

2. The road surface defect detection device based on multi-sensor fusion according to claim 1, characterized in that: The output end of the push plate mechanism is connected to the push-pull block (14). The push plate mechanism is used to control the horizontal movement of the diversion push plate (17). The push plate mechanism includes a sliding component and a reset component. The output end of the sliding component is connected to the push-pull block (14). The sliding component is used to control the horizontal movement of the push-pull block (14). The output end of the reset component is connected to the sliding component. The reset component is used to control the sliding component to return to the initial position.

3. The road surface defect detection device based on multi-sensor fusion according to claim 2, characterized in that: The sliding assembly includes two fixed blocks (311) mounted on the upper end of the mounting plate (13), a slide rod (312) mounted on the surface of the fixed blocks (311), and a single tooth block (313) mounted on the outside of the slide rod (312), the single tooth block (313) being slidably connected to the slide rod (312).

4. The road surface defect detection device based on multi-sensor fusion according to claim 3, characterized in that: The reset assembly includes a limiting block (321) installed on the end of the slide bar (312) away from the fixing block (311) and a spring (322) sleeved on the outside of the slide bar (312).

5. The road surface defect detection device with multi-sensor fusion according to claim 4, characterized in that: The wheel mechanism is used to drive the entire device to move. The wheel mechanism includes a front wheel assembly and a rear wheel assembly. The front wheel assembly is used to control the horizontal movement of the sliding assembly, and the rear wheel assembly is used to cooperate with the front wheel assembly to maintain the balance of the device.

6. The road surface defect detection device based on multi-sensor fusion according to claim 5, characterized in that: The front wheel assembly includes a front axle (411) mounted inside the mounting block (11), front wheels (412) mounted at both ends of the front axle (411), and two drive gears (413) mounted on the outside of the front axle (411), the drive gears (413) meshing with a single tooth block (313).

7. The road surface defect detection device based on multi-sensor fusion according to claim 6, characterized in that: The rear wheel assembly includes a rear axle (421) mounted on the lower end of the mobile frame (1), rear wheels (422) mounted on both ends of the rear axle (421), and a trailer hitch (423) mounted on the end of the mobile frame (1) near the mounting block (11).

8. The road surface defect detection device based on multi-sensor fusion according to claim 1, characterized in that: The upper end of the mobile frame (1) is equipped with a mounting frame (18), the inside of the mounting frame (18) is equipped with a detection integration box (19), the lower end of the detection integration box (19) is equipped with a screen acquisition camera (20), the lower end of the detection integration box (19) is equipped with a ground penetrating radar (21), the lower end of the detection integration box (19) is equipped with a laser scanner (22), the upper end of the detection integration box (19) is equipped with a rectangular support rod (23), and the upper end of the support rod (23) is equipped with a photovoltaic panel (24).

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