Tire damage automatic detection device based on computer vision

Abstract

The utility model discloses a tire damage automatic detection device based on computer vision, and belongs to the technical field of tire damage detection. Comprising a fixed base; the movable base is arranged on the fixed base in a sliding manner; the detection table board is telescopic, and the detection table board is fixed between the fixed base and the movable base; the distance adjusting mechanisms are arranged on the fixed base and the movable base; and the four groups of three-dimensional profile measuring mechanisms comprise two tire side three-dimensional profile measuring instruments fixed on the distance adjusting mechanism and two tire surface three-dimensional profile measuring instruments fixed on the fixed base and the movable base respectively, so that the technical effect of simultaneously detecting the damage of the four-wheel tires according to different vehicles is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tire damage detection, more specifically, to a computer vision-based automatic tire damage detection device. BACKGROUND

[0002] With the continuous development of computer vision technology and the continuous expansion of application fields, computer vision-based automatic tire damage detection devices will develop towards more intelligent, efficient and precise directions. In the future, this technology will combine advanced technologies such as the Internet of Things and big data to realize intelligent management and maintenance of the entire life cycle of tires, and provide more powerful support for the development of the tire industry.

[0003] The computer vision-based automatic tire damage detection device captures tire images through hardware devices such as cameras and image sensors, and analyzes and processes the images using deep learning and image processing algorithms, thereby realizing automatic detection of tire size, appearance defects, patterns and other aspects. This device not only improves detection efficiency and accuracy, but also reduces the cost and error of manual detection. At present, there are many family cars, and the current single-wheel tire damage detection method is low in efficiency.

[0004] In view of this, we propose a computer vision-based automatic tire damage detection device. CONTENT OF THE INVENTION

[0005] 1. Technical problem to be solved

[0006] The purpose of the present application is to provide a computer vision-based automatic tire damage detection device, which solves the technical problems in the above background technology and achieves the technical effect of simultaneously detecting four-wheel tire damage according to different vehicles.

[0007] 2. Technical solution

[0008] The technical solution of the present application provides a computer vision-based automatic tire damage detection device, which comprises:

[0009] A fixed base;

[0010] A movable base is slidingly arranged on the fixed base;

[0011] A detection table is fixed between the fixed base and the movable base;

[0012] A spacing adjustment mechanism is arranged on the fixed base and the movable base;

[0013] Four sets of three-dimensional profile measuring mechanisms, including two tire side three-dimensional profile measuring instruments fixed on the spacing adjusting mechanism and two tread three-dimensional profile measuring instruments fixed on the fixed base and the moving base respectively.

[0014] By adopting the technical scheme, the four sets of three-dimensional profile measuring mechanisms are arranged at the four wheels of the automobile, and the tire side three-dimensional profile measuring instruments are arranged on both sides of each tire, and the tread three-dimensional profile measuring instruments are arranged at the bottom, the two tire side three-dimensional profile measuring instruments are fixed on the spacing adjusting mechanism, the spacing of the spacing adjusting mechanism is adjusted, the tire side three-dimensional profile measuring instruments on both sides of each tire are adjusted, the tire side three-dimensional profile measuring instruments are not crushed when the vehicle drives in, the spacing between the moving base and the fixed base is adjusted, the spacing between the front wheels and the rear wheels of different vehicles is adjusted, the detection platform is adjusted, the vehicle can move stably on the detection platform, and the two tire side three-dimensional profile measuring instruments and the tread three-dimensional profile measuring instrument at the bottom perform three-dimensional damage detection on the tire when the wheels roll on the fixed base and the moving base.

[0015] As an optional solution of the technical scheme of the present application, the fixed base comprises a fixed seat, a first guide rail symmetrically arranged on the fixed seat and horizontally arranged, and a hydraulic cylinder symmetrically arranged and parallel to the first guide rail, the moving base comprises a moving seat slidingly arranged on the fixed seat and adapted to slide with the first guide rail, and the fixed base and the moving base each comprise two rollers and a second servo motor, the two rollers are in transmission connection, and the second servo motor is in transmission connection with the rollers.

[0016] By adopting the technical scheme, the fixed seat and the moving seat each have two rollers rotatably connected through bearings, each two rollers are used for supporting two wheels, two second servo motors are fixed on the fixed seat and the moving seat respectively, an output shaft of the second servo motor is coaxially fixed with one of the rollers, and the two rollers on the same side are in transmission connection, the second servo motor drives the two rollers on the same side to synchronously and unidirectionally rotate, thereby driving the vehicle to roll, the hydraulic cylinder is fixed between the fixed seat and the moving seat, the moving seat is adjusted to slide along the first guide rail through the extension and retraction of the hydraulic cylinder, thereby adjusting the spacing between the fixed seat and the moving seat, and finally adjusting the spacing between the two rollers, and finally adjusting the spacing between the front wheels and the rear wheels of the vehicle, and the four tread three-dimensional profile measuring instruments are fixed on the two ends of the fixed seat and the moving seat and upwardly arranged.

[0017] As an optional solution of the technical scheme of the present application, the two rollers on the same side are coaxially fixed with sprockets, and a chain is in transmission connection between the two sprockets.

[0018] By adopting the technical scheme, the two rollers on the same side are synchronously and unidirectionally driven through the cooperation of the sprockets and the chain.

[0019] As an optional solution of the technical scheme of the present application, the distance adjusting mechanism comprises a second guide rail, a sliding block, a double-head bidirectional threaded screw rod and a first servo motor, the fixed seat and the moving seat are both fixed with the second guide rail arranged perpendicularly to the first guide rail, the double-head bidirectional threaded screw rod has two groups of screw rods with opposite screw directions at both ends, the threaded sections of the double-head bidirectional threaded screw rod are both threadedly connected with the sliding block, the opposite sides of the sliding block on the same side are both fixed with the side wall three-dimensional profile measuring instrument, the fixed seat and the moving seat are both fixed with the first servo motor in transmission connection with the double-head bidirectional threaded screw rod, and the first servo motor and the second servo motor are both provided with a band brake.

[0020] By adopting the above technical scheme, one first servo motor is fixed on the fixed seat and the moving seat, and the output shafts of the first servo motor are both coaxially fixed with a double-head bidirectional threaded screw rod, the two double-head bidirectional threaded screw rods are both rotatably arranged on the fixed seat and the moving seat through bearings, when the first servo motor drives the double-head bidirectional threaded screw rod to rotate clockwise, the two sliding blocks at both ends of the double-head bidirectional threaded screw rod slide relative to each other, thereby driving the two side wall three-dimensional profile measuring instruments at each vehicle to adjust relative to each other, so that the side wall three-dimensional profile measuring instruments are close to the side wall, and vice versa, when the double-head bidirectional threaded screw rod rotates counterclockwise, the two sliding blocks at both ends of the double-head bidirectional threaded screw rod slide away from each other, so as to avoid rolling over the side wall three-dimensional profile measuring instruments when the vehicle drives in or drives out, and at the same time, when the vehicle drives in or drives out the roller, the output shaft of the second servo motor is fixed through the band brake, at this time, the roller can be avoided from rotating, thereby facilitating the vehicle to drive in or drive out from the roller.

[0021] As an optional solution of the technical scheme of the present application, the detection table top comprises an outer sleeve plate fixed on the fixed seat, an insertion plate slidably inserted in the outer sleeve plate and a plurality of fixed legs.

[0022] By adopting the above technical scheme, the outer sleeve plate is fixed on the fixed seat through the plurality of fixed legs, the insertion plate is fixed on the moving seat through the plurality of fixed legs, and the lower surface of the insertion plate is further fixed with the plurality of moving legs supported on the fixed seat, so as to improve the support strength of the insertion plate, and therefore when the moving seat moves towards the fixed seat, the insertion plate is inserted into the outer sleeve plate at this time, and the vehicle can stably drive on the detection table top.

[0023] 3. Beneficial effects

[0024] The one or more technical schemes provided in the embodiments of the present application have at least the following technical effects or advantages:

[0025] 1. The application is placed at the four wheels of the automobile by four sets of three-dimensional profile measurement mechanism, and the two sides of each tire are provided with a three-dimensional profile measurement instrument, and the bottom is provided with a three-dimensional profile measurement instrument, and the two three-dimensional profile measurement instruments are fixed on the spacing adjusting mechanism, which is beneficial to the spacing adjustment of the spacing adjusting mechanism, and the two three-dimensional profile measurement instruments on both sides of each tire are adjusted to avoid crushing the three-dimensional profile measurement instrument when the vehicle drives in, and the spacing between the moving base and the fixed base is adjusted to facilitate the adjustment according to the spacing between the front and rear wheels of different vehicles, and the detection platform is adjusted to make the vehicle move smoothly on the detection platform, and finally the three-dimensional damage detection of the tire is carried out by the rolling of the wheel on the fixed base and the moving base. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The overall structure schematic diagram of the tire damage automatic detection device based on computer vision disclosed by a preferred embodiment of the application is disclosed.

[0027] Figure 2 The overall left view structure schematic diagram of the tire damage automatic detection device based on computer vision disclosed by a preferred embodiment of the application is disclosed.

[0028] Figure 3 The moving base structure schematic diagram of the tire damage automatic detection device based on computer vision disclosed by a preferred embodiment of the application is disclosed.

[0029] Figure 4 The fixed base structure schematic diagram of the tire damage automatic detection device based on computer vision disclosed by a preferred embodiment of the application is disclosed. Figure 3 The enlarged structure schematic diagram of the fixed base structure schematic diagram of the tire damage automatic detection device based on computer vision disclosed by a preferred embodiment of the application is disclosed.

[0030] Figure 5 The fixed base structure schematic diagram of the tire damage automatic detection device based on computer vision disclosed by a preferred embodiment of the application is disclosed.

[0031] Explanation of reference numerals in the figure: 1, fixed base; 11, fixed seat; 12, first guide rail; 13, hydraulic cylinder; 2, moving base; 21, moving seat; 22, roller; 23, chain wheel; 24, chain; 25, second servo motor; 3, detection platform; 31, outer sleeve plate; 32, plugboard; 33, fixed leg; 34, moving leg; 4, spacing adjusting mechanism; 41, second guide rail; 42, sliding block; 43, double-head bidirectional threaded rod; 44, first servo motor; 5, three-dimensional profile measurement mechanism; 51, tread three-dimensional profile measurement instrument; 52, sidewall three-dimensional profile measurement instrument. DETAILED DESCRIPTION

[0032] The application will be further described in detail below with reference to the accompanying drawings.

[0033] The computer vision-based automatic tire damage detection device comprises:

[0034] A fixed base 1;

[0035] A movable base 2 is slidingly arranged on the fixed base 1;

[0036] A detection table 3 is fixed between the fixed base 1 and the movable base 2 and is retractable;

[0037] A spacing adjustment mechanism 4 is arranged on the fixed base 1 and the movable base 2;

[0038] Four sets of three-dimensional profile measurement mechanisms 5 comprise two tire side three-dimensional profile measurement instruments 52 fixed on the spacing adjustment mechanism 4 and two tread three-dimensional profile measurement instruments 51 respectively fixed on the fixed base 1 and the movable base 2.

[0039] With reference to Figures 1-5 , the device is entirely embedded in the ground, and the detection table 3 is coplanar with the ground to facilitate the vehicle to enter, the four sets of three-dimensional profile measurement mechanisms 5 are arranged at the four wheels of the vehicle, and the tire side three-dimensional profile measurement instrument 52 is arranged on each side of each tire, and the tread three-dimensional profile measurement instrument 51 is arranged at the bottom, and the two tire side three-dimensional profile measurement instruments 52 are fixed on the spacing adjustment mechanism 4, which is beneficial to the spacing adjustment of the spacing adjustment mechanism 4 and the adjustment of the tire side three-dimensional profile measurement instrument 52 on each side of each tire to avoid crushing the tire side three-dimensional profile measurement instrument 52 when the vehicle enters, and the spacing between the movable base 2 and the fixed base 1 is adjusted to facilitate the adjustment according to the spacing between the front and rear wheels of different vehicles, and the detection table 3 is adjusted to enable the vehicle to move smoothly on the detection table 3, and finally the wheels roll on the fixed base 1 and the movable base 2, at which time the two tire side three-dimensional profile measurement instruments 52 and the tread three-dimensional profile measurement instrument 51 at the bottom perform three-dimensional damage detection on the tire.

[0040] The fixed base 1 comprises a fixed seat 11, a first guide rail 12 symmetrically fixed on the fixed seat 11 and arranged horizontally, and a hydraulic cylinder 13 symmetrically arranged and parallel to the first guide rail 12, the movable base 2 comprises a movable seat 21 slidingly arranged on the fixed seat 11 and adapted to slide with the first guide rail 12, and the fixed base 1 and the movable base 2 each comprise two rollers 22 and a second servo motor 25, the two rollers 22 are in transmission connection, and the second servo motor 25 is in transmission connection with the rollers 22.

[0041] With reference to Figure 1 and Figure 2The two rollers 22 are coaxially fixed on the same side of the two sprockets 23, and the chain 24 is drivingly connected between the two sprockets 23.

[0042] The two rollers 22 are coaxially fixed on the same side of the two sprockets 23, and the chain 24 is drivingly connected between the two sprockets 23.

[0043] Referring to Figure 4 The two rollers 22 are coaxially fixed on the same side of the two sprockets 23, and the chain 24 is drivingly connected between the two sprockets 23.

[0044] The spacing adjustment mechanism 4 comprises a second guide rail 41, a sliding block 42, a double-head bidirectional threaded screw rod 43, and a first servo motor 44. The fixed seat 11 and the moving seat 21 are each fixed with a second guide rail 41 arranged perpendicularly to the first guide rail 12. The double-head bidirectional threaded screw rod 43 has two ends each with two groups of screw rods with opposite screw directions. The threaded segments of the double-head bidirectional threaded screw rod 43 are each threadedly connected with a sliding block 42. The opposite sides of the sliding blocks 42 on the same side are each fixed with a sidewall three-dimensional contour measuring instrument 52. The fixed seat 11 and the moving seat 21 are each fixed with a first servo motor 44 drivingly connected with the double-head bidirectional threaded screw rod 43. The first servo motor 44 and the second servo motor 25 are each provided with a band brake.

[0045] Referring to Figures 2-4A first servo motor 44 is fixed on the fixed seat 11 and the moving seat 21, and the output shaft of the first servo motor 44 is coaxially fixed with a double-head bidirectional threaded rod 43, and the double-head bidirectional threaded rod 43 is rotatably arranged on the fixed seat 11 and the moving seat 21 through bearings. When the double-head bidirectional threaded rod 43 is driven to rotate clockwise by the first servo motor 44, the two sliders 42 at both ends of the double-head bidirectional threaded rod 43 slide relative to each other, thereby driving the two tire side three-dimensional profile measuring instruments 52 at each vehicle to adjust relative to each other, so that the tire side three-dimensional profile measuring instrument 52 approaches the tire side. Conversely, when the double-head bidirectional threaded rod 43 rotates counterclockwise, the two sliders 42 at both ends of the double-head bidirectional threaded rod 43 slide away from each other, so as to avoid rolling over the tire side three-dimensional profile measuring instrument 52 when the vehicle drives in or drives away. At the same time, when the vehicle drives in or drives away from the roller 22, the output shaft of the second servo motor 25 is fixed by the brake, so that the roller 22 can be prevented from rotating at this time, and the vehicle can be conveniently driven in or driven away from the roller 22.

[0046] The detection table 3 includes an outer sleeve plate 31 fixed on the fixed seat 11, an insertion plate 32 slidably inserted into the outer sleeve plate 31, and a plurality of fixed legs 33. The lower surface of the insertion plate 32 is fixed with a plurality of moving legs 34 supported on the fixed seat 11.

[0047] Referring to Figure 2 and Figure 3 and Figure 5 The outer sleeve plate 31 is fixed on the fixed seat 11 by the plurality of fixed legs 33, the insertion plate 32 is fixed on the moving seat 21 by the plurality of fixed legs 33, and the lower surface of the insertion plate 32 is also fixed with a plurality of moving legs 34 supported on the fixed seat 11, so as to improve the support strength of the insertion plate 32. Therefore, when the moving seat 21 moves towards the fixed seat 11, the insertion plate 32 at this time is inserted into the outer sleeve plate 31, and the vehicle can stably drive on the detection table 3.

[0048] Working principle: measure the distance between the front and rear wheels of the vehicle, through the extension adjustment of hydraulic cylinder 13, push or pull the moving seat 21 to move along the direction of the fixed seat 11, so that the gap between the two rollers 22 on the fixed seat 11 and the moving seat 21 is adjusted to adapt to the distance between the front and rear wheels of the vehicle, after the adjustment is completed, when the first servo motor 44 drives the double-headed bidirectional threaded rod 43 to rotate counterclockwise, the two sliders 42 at both ends of the double-headed bidirectional threaded rod 43 slide away, then the vehicle drives onto the detection table 3, and the front wheels are placed between the two rollers 22 of the fixed seat 11, and the rear wheels are placed between the two rollers 22 of the moving seat 21, when the first servo motor 44 drives the double-headed bidirectional threaded rod 43 to rotate clockwise, the two sliders 42 at both ends of the double-headed bidirectional threaded rod 43 slide relative to each other, thereby driving the two sidewall three-dimensional profile measuring instruments 52 at each vehicle to adjust relative to each other, so that the sidewall three-dimensional profile measuring instrument 52 approaches the sidewall, finally the vehicle is hung in the neutral gear, the second servo motor 25 cooperates with the sprocket 23 and the chain 24 to make the four rollers 22 rotate synchronously in the same direction, thereby driving the four tires to roll synchronously in the same direction, at this time the tread three-dimensional profile measuring instrument 51 detects the damage of the rolling tread, and the sidewall three-dimensional profile measuring instrument 52 detects the damage of the rolling sidewall.

Claims

1. A computer vision based automatic detection device for tire damage, characterized in that: It includes: Fixed base (1); The mobile base (2) is slidingly arranged on the fixed base (1); The detection table (3) is telescopic, and the detection table (3) is fixed between the fixed base (1) and the mobile base (2); The spacing adjustment mechanism (4) is arranged on the fixed base (1) and the mobile base (2); Four sets of three-dimensional profile measurement mechanisms (5) include two sidewall three-dimensional profile measurement instruments (52) fixed on the spacing adjustment mechanism (4) and two tread three-dimensional profile measurement instruments (51) fixed on the fixed base (1) and the mobile base (2) respectively.

2. The computer vision based automatic detection of tire damage apparatus of claim 1, wherein: The fixed base (1) includes a fixed seat (11), a first guide rail (12) symmetrically fixed on the fixed seat (11) and horizontally arranged, and a hydraulic cylinder (13) symmetrically arranged and parallel to the first guide rail (12), the mobile base (2) includes a mobile seat (21) slidingly arranged on the fixed seat (11) and slidingly matched with the first guide rail (12), and the fixed base (1) and the mobile base (2) both include two rollers (22) and a second servo motor (25), the two rollers (22) are in transmission connection, and the second servo motor (25) is in transmission connection with the roller (22).

3. The computer vision based automatic detection of tire damage apparatus of claim 2, wherein: The two rollers (22) on the same side are coaxially fixed with a chain wheel (23), and the two chain wheels (23) are in transmission connection with a chain (24).

4. The computer vision based automatic detection of tire damage apparatus of claim 2, wherein: The spacing adjustment mechanism (4) includes a second guide rail (41), a sliding block (42), a double-head bidirectional threaded screw rod (43) and a first servo motor (44), the fixed seat (11) and the mobile seat (21) are both fixed with the second guide rail (41) which is arranged perpendicularly to the first guide rail (12), the double-head bidirectional threaded screw rod (43) has two groups of screw rods with opposite screw directions at both ends, the threaded segments of the double-head bidirectional threaded screw rod (43) are both in threaded connection with the sliding block (42), the opposite sides of the sliding block (42) on the same side are both fixed with the sidewall three-dimensional profile measurement instrument (52), the fixed seat (11) and the mobile seat (21) are both fixed with the first servo motor (44) in transmission connection with the double-head bidirectional threaded screw rod (43), and the first servo motor (44) and the second servo motor (25) are both provided with a band brake.

5. The computer vision based automatic detection of tire damage apparatus of claim 2, wherein: The detection table (3) includes a sleeve plate (31) fixed on the fixed seat (11), a plug-in plate (32) slidingly inserted into the sleeve plate (31) and a plurality of fixed supporting legs (33), and the lower surface of the plug-in plate (32) is fixed with a plurality of mobile supporting legs (34) supported on the fixed seat (11).

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