Railway tunnel surface defect detection equipment based on image recognition

Abstract

The utility model provides railway tunnel surface defect detection equipment based on image recognition, which relates to the technical field of railway tunnel inspection equipment and comprises a detection vehicle, a comprehensive positioning component, a data processing component, a laser transmitter, a laser emitting line type lens and a line-scan digital camera. The laser transmitter is connected with the laser light-emitting linear lens, the laser transmitter and the linear array camera are integrally assembled on the mounting plate to form a linear scanning assembly, the plurality of linear scanning assemblies are uniformly assembled on the circular ring bracket, and the circular ring bracket is assembled at the front part of the detection vehicle; the comprehensive positioning assembly is assembled on the detection vehicle and used for image acquisition position recognition and positioning, the data processing assembly is assembled on a detection cabinet in the detection vehicle, automatic and rapid detection of tunnel surface defects is achieved, manual detection operation is not needed, the safety of inspection personnel is ensured, the inspection difficulty is reduced, and safe operation of lines is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway tunnel inspection equipment technical field, concretely relates to a kind of railway tunnel surface defect detection equipment based on image recognition. BACKGROUND

[0002] With the increasing expansion of modernization, the construction of rail transportation is also increasingly prosperous, and rail transportation mainly includes railway and urban rail. In order to ensure the safety of the running vehicle, the tunnel needs to be detected and maintained periodically. Due to the particularity of the narrow and long distance space environment of the tunnel and the limitation of various technical applications, most disease inspection methods are still manual inspection or inspection personnel carrying auxiliary equipment for inspection, which cannot effectively shorten the inspection period.

[0003] For example, in Chinese patent documents, the patent for invention with the name of a device for tunnel lining quality detection, publication number CN109405874A and publication date March 1, 2019, includes a bottom plate, the bottom plate is provided with self-locking universal wheels, the bottom plate is provided with a hydraulic cylinder base, the hydraulic cylinder base is fixed with a hydraulic cylinder, the hydraulic cylinder is connected with a connecting rod above the telescopic rod, the connecting rod passes through a support table, the support table is provided with a platform above, the platform and the support table are connected through a spring, the platform is provided with a clamp above, the clamp is composed of a first clamp block, a second clamp block and a threaded rod, and the platform upper surface is paved with a slide rail; The device for tunnel lining quality detection has reasonable design, simple structure and strong stability. The platform top is provided with a clamp, which can firmly fix the detection equipment on the platform. The two sides are provided with springs and handles, which can adjust the degree of platform inclination according to the curvature change of different tunnel top, so that the platform can swing to the two sides to meet the tunnel top arc structure and provide convenience for measurement.

[0004] In the above-mentioned prior art, the tunnel lining surface damage, spalling, water seepage, crack and other diseases are inspected by the inspection personnel carrying auxiliary equipment, the inspection period is long, and the detection operation in all-weather, complex and harsh environment in the tunnel is not conducive to the safety of the inspection personnel and increases the inspection difficulty. UTILITY MODEL CONTENT

[0005] To solve the above-mentioned problems of the prior art, the utility model provides a railway tunnel surface defect detection equipment based on image recognition, which realizes automatic and rapid detection of tunnel surface defects, does not need manual detection operation, ensures the safety of the inspection personnel, reduces the inspection difficulty and ensures the safe operation of the line.

[0006] The utility model realizes the following technical solutions:

[0007] The utility model provides a kind of railway tunnel surface defect detection equipment based on image recognition, it is characterized by including detection car, comprehensive positioning component and data processing component, laser transmitter, laser light emitting line lens and line array camera;Laser transmitter is connected with laser light emitting line lens, and is integrally assembled with line array camera on mounting plate to form a line scanning component, multiple line scanning components are uniformly assembled on circular ring support, and circular ring support is assembled in the front of detection car;Comprehensive positioning component is assembled on detection car for image acquisition position identification and positioning, data processing component is assembled in the detection cabinet in detection car.

[0008] Further, the comprehensive positioning component includes a speed encoder and an auxiliary positioning device, the speed encoder is installed on the wheel shaft of the detection car, and the auxiliary positioning device is assembled on one side of the detection car.

[0009] Further, the power supply management component is installed in the detection cabinet.

[0010] Further, the power supply management component is provided with a voltage stabilizing device, a surge protector and an uninterruptible power supply.

[0011] A kind of railway tunnel surface defect detection equipment based on image recognition, it is characterized by including detection car, comprehensive positioning component and data processing component, two-dimensional imaging component, three-dimensional scanning component, infrared imaging component, the front of detection car is provided with rack, multiple two-dimensional imaging components are circumferentially arranged on rack, and are fixed by outer rack, infrared imaging component is assembled on both sides of rack, three-dimensional scanning component is assembled in the middle of rack;Comprehensive positioning component is assembled on detection car for image acquisition position identification and positioning, data processing component is assembled in the detection cabinet in detection car.

[0012] Further, the rack is connected with the detection car through flange, and the infrared imaging component assembled on both sides of the rack is fixed by support;Three-dimensional scanning component is assembled in the middle of rack and is fixed by outer wall.

[0013] Further, the rack is connected with the detection car through flange, and the infrared imaging component assembled on both sides of the rack is fixed by support;Three-dimensional scanning component is assembled in the middle of rack and is fixed by outer wall.

[0014] Further, the comprehensive positioning component includes a speed encoder and an auxiliary positioning device, the speed encoder is installed on the wheel shaft of the detection car, and the auxiliary positioning device is assembled on one side of the detection car.

[0015] Further, the power supply management component is installed in the detection cabinet.

[0016] Further, the power supply management component is provided with a voltage stabilizing device, a surge protector and an uninterruptible power supply.

[0017] The working principle of the utility model is as follows:

[0018] The line array camera is matched with a laser emitter, a laser light emitting linear lens or a two-dimensional imaging component, a three-dimensional scanning component and an infrared imaging component to perform fast and real-time image acquisition on the tunnel lining surface, the comprehensive positioning component completes initial positioning and accurate correction of the mileage, the position recognition and positioning of the image can be realized, the data processing component analyzes the collected image and the position recognition and positioning of the image, intelligently identifies defects such as block, water seepage and cracks of the tunnel lining, saves the defect information, guides the operating personnel to reach the specified position to perform tunnel maintenance and repair according to the defect position in the defect information, and ensures the safe operation of the line.

[0019] The utility model has the advantages that:

[0020] 1. The utility model discloses a tunnel surface defect automatic, fast detection is realized, does not need manual detection operation, ensures the safety of the inspection personnel, reduces the inspection difficulty, and ensures the safe operation of the line.

[0021] 2. In the utility model, the line array camera is matched with the laser emitter, the laser light emitting linear lens or the two-dimensional imaging component, the three-dimensional scanning component and the infrared imaging component can all perform full coverage, fast, high-precision and dynamic scanning on the tunnel surface.

[0022] 3. In the utility model, the comprehensive positioning component is arranged to complete initial positioning and accurate correction of the mileage, the position recognition and positioning of the image can be realized, and the tunnel defect position is collected in cooperation with the image acquisition component.

[0023] 4. In the utility model, the data processing component adopts a high-performance industrial computer to collect and store the data of the image acquisition component and the comprehensive positioning component, analyzes defects such as block, water seepage and cracks of the tunnel lining, saves the defect information, can guide the operating personnel to perform tunnel maintenance and repair in time, and ensures the safe operation of the line.

[0024] Therefore, the utility model discloses simple structure and simple installation, is especially suitable for detection operation in all-weather, complex and severe environments in the tunnel, adopts the line array camera matched with the laser emitter, the laser light emitting linear lens or the two-dimensional imaging component, the three-dimensional scanning component and the infrared imaging component to perform fast and real-time image acquisition on the tunnel lining surface, the comprehensive positioning component completes initial positioning and accurate correction of the mileage, the position recognition and positioning of the image can be realized, the data processing component analyzes the collected image and the position recognition and positioning of the image, intelligently identifies defects such as block, water seepage and cracks of the tunnel lining, saves the defect information, guides the operating personnel to reach the specified position to perform tunnel maintenance and repair according to the defect position in the defect information, and ensures the safe operation of the line. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1For the utility model side view,

[0026] Figure 2 For the utility model one embodiment structure main view,

[0027] Figure 3 For Figure 2 Midline sweep assembly main view,

[0028] Figure 4 For Figure 2 Line sweep assembly side view,

[0029] Figure 5 For Figure 2 Line sweep assembly top view,

[0030] Figure 6 For line sweep assembly structure schematic view,

[0031] Figure 7 For the utility model another embodiment structure main view,

[0032] Figure 8 For Figure 7 Mid rack schematic view,

[0033] Figure 9 For Figure 8 Schematic view of three-dimensional structure.

[0034] Reference sign: 1-detection vehicle, 2-line sweep assembly, 3-round ring support, 4-detection cabinet, 5-two-dimensional imaging assembly, 6-three-dimensional scanning assembly, 7-infrared imaging assembly, 8-rack, 9-outer rack, 10-outer wall, 11-cable box, 12-speed encoder, 13-assisted positioning device, 14-support, 15-mounting plate, 16-laser emitter, 17-laser light-out line mirror, 18-linear array camera. Specific implementation

[0035] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0036] Embodiment 1

[0037] As Figures 1-6As shown in the figure, an image recognition-based railway tunnel surface defect detection device includes a detection vehicle 1, a comprehensive positioning assembly, a data processing assembly, a laser emitter 16, a laser light-emitting linear lens 17, and a linear array camera 18; the laser emitter 16 is connected with the laser light-emitting linear lens 17 and is integrally assembled with the linear array camera 18 on a mounting plate 15 to form a line scanning assembly 2; a plurality of line scanning assemblies 2 are uniformly assembled on a circular ring support 3, and the circular ring support 3 is assembled on the front part of the detection vehicle 1; the comprehensive positioning assembly is assembled on the detection vehicle 1 for image acquisition position recognition and positioning; and the data processing assembly is assembled in a detection cabinet 4 in the detection vehicle 1.

[0038] In implementation, the laser emitter 16 emits laser light through the laser light-emitting linear lens 17 to form a laser light source to irradiate the tunnel; the high-frame-rate and high-resolution linear array camera 18 is used to perform full-coverage, fast real-time dynamic scanning on the contour and lining surface in the tunnel; the comprehensive positioning assembly completes initial positioning and accurate correction of the mileage, can realize position recognition and positioning of the image; the data processing assembly analyzes the collected image and the position recognition and positioning of the image, intelligently identifies defects such as lining block, water seepage, and cracks in the tunnel, saves defect information, guides the operating personnel to reach the specified position for tunnel maintenance and repair through the defect position in the defect information, ensures safe operation of the line, realizes automatic and fast detection of the tunnel surface defects, and reduces the difficulty of inspection without manual detection.

[0039] In this embodiment, the data processing assembly can adopt a high-performance industrial computer, which is designed according to the standard design of a rack-mounted server and can be placed in the detection cabinet 4.

[0040] Embodiment 2

[0041] This embodiment is a further detailed elaboration and supplement to the implementation mode of the utility model on the basis of embodiment 1.

[0042] As an implementation mode of this embodiment, as shown in the figure, Figure 1 the comprehensive positioning assembly includes a speed encoder 12 and an auxiliary positioning device 13; the speed encoder 12 is installed on the wheel shaft of the detection vehicle 1; and the auxiliary positioning device 13 is assembled on one side of the detection vehicle 1.

[0043] In implementation, the speed encoder 12 is used to record the moving distance of the detection vehicle 1 to realize initial positioning of the mileage; and the auxiliary positioning device 13 is used to accurately correct the mileage and can adopt an electronic tag device, a GPS, and a train operation monitoring device according to the actual line condition, and the auxiliary positioning device 13 selects one or more of them.

[0044] As another implementation of the embodiment, a power supply management component is further included, which is installed in the detection cabinet 4 and used to supply power to the detection device; the power supply management component is provided with a voltage stabilizing device, a surge protector and an uninterruptible power supply, the voltage stabilizing device and the surge protector are used to ensure the safety of power consumption, and the uninterruptible power supply is used to ensure that the detection device can be self-powered in an emergency.

[0045] Embodiment 3

[0046] As shown in Figure 1 , Figures 7-8 , a railway tunnel surface defect detection device based on image recognition includes a detection vehicle 1, a comprehensive positioning component and a data processing component, a two-dimensional imaging component 5, a three-dimensional scanning component 6 and an infrared imaging component 7; the detection vehicle 1 is provided with a rack 8 at the front, a plurality of two-dimensional imaging components 5 are arranged around the rack 8 and fixed through an outer rack 9, the infrared imaging components 7 are arranged on both sides of the rack 8, and the three-dimensional scanning component 6 is arranged in the middle of the rack 8; the comprehensive positioning component is arranged on the detection vehicle 1 and used for image acquisition position recognition and positioning, and the data processing component is arranged in a detection cabinet 4 in the detection vehicle 1.

[0047] In implementation, the two-dimensional imaging component 5 adopts a camera, the infrared imaging component 7 adopts an infrared thermal imager or an infrared thermal imaging camera, and the three-dimensional scanning component 6 adopts a laser scanner or a three-dimensional scanner; the infrared imaging component 7 can enable the detection device to operate in low light, no light, smoke or other visual obstacles or other harsh environments, the two-dimensional imaging component 5 can recognize surface damage, and the three-dimensional scanning component 6 can detect deformation or wear; by combining the two-dimensional imaging, the three-dimensional scanning and the infrared imaging, the detection device can capture the tunnel contour, the surface details of the lining, the three-dimensional shape and the temperature distribution at the same time, thereby providing high-resolution images; the comprehensive positioning component completes initial positioning and accurate correction of the mileage, realizes position recognition and positioning of images, and the data processing component analyzes the collected images, the position recognition and the positioning of the images, intelligently recognizes defects such as spalling, water seepage and cracks of the tunnel lining, saves defect information, guides workers to reach the specified position for tunnel maintenance and repair according to the defect position in the defect information, ensures safe operation of the line, realizes automatic and rapid detection of tunnel surface defects, reduces the difficulty of inspection, does not need manual detection, and ensures the safety of the inspection personnel.

[0048] In the embodiment, the data processing component can adopt a high-performance industrial computer, which is placed in the detection cabinet 4 according to the standard design of a rack-mounted server.

[0049] Embodiment 4

[0050] The embodiment is further detailed and supplemented on the basis of the embodiment 3.

[0051] As an embodiment of the embodiment, the rack 8 is connected with the detection vehicle 1 through flanges, as shown in the figure, the infrared imaging assembly 7 assembled on both sides of the rack 8 is fixed through the support 14; the three-dimensional scanning assembly 6 is assembled in the middle of the rack 8 and is fixed through the outer wall 10. Figure 9

[0052] As another embodiment of the embodiment, as shown in the figure, the cable box 11 is assembled in the inner side of the rack 8, which is used for wiring arrangement of the three-dimensional scanning assembly 6, the two-dimensional imaging assembly 5 and the infrared imaging assembly 7. Figure 9

[0053] As another embodiment of the embodiment, as shown in the figure, the comprehensive positioning assembly comprises a speed encoder 12 and an auxiliary positioning device 13, the speed encoder 12 is installed on the wheel shaft of the detection vehicle 1, and the auxiliary positioning device 13 is assembled on one side of the detection vehicle 1. Figure 1

[0054] In the implementation, the speed encoder 12 is used for recording the moving distance of the detection vehicle 1, and the initial positioning of the mileage is realized, and the auxiliary positioning device 13 is used for correction of the accurate mileage, and electronic tag equipment, GPS and train operation monitoring device can be used, and one or more of the auxiliary positioning device 13 is selected according to the actual line condition.

[0055] As another embodiment of the embodiment, a power supply management assembly is further included, the power supply management assembly is installed in the detection cabinet 4 and is used for providing electric energy for the detection equipment; the power supply management assembly is provided with a voltage stabilizing device, a surge protector and an uninterruptible power supply, the voltage stabilizing device and the surge protector are used for ensuring the safety of electricity, and the uninterruptible power supply is used for ensuring that the detection equipment can be self-powered in an emergency.​​​

Claims

1. A railway tunnel surface defect detection device based on image recognition, characterized by: The invention comprises an inspection vehicle (1), an integrated positioning component and a data processing component, a laser emitter (16), a laser light-emitting lens (17) and a linear array camera (18); the laser emitter (16) is connected to the laser light-emitting lens (17), and is integrated with the linear array camera (18) and assembled on a mounting plate (15) to form a line scanning component (2); a plurality of line scanning components (2) are evenly assembled on a circular bracket (3), and the circular bracket (3) is assembled on the front of the inspection vehicle (1); the integrated positioning component is assembled on the inspection vehicle (1) for image acquisition position recognition and positioning, and the data processing component is assembled on the inspection cabinet (4) in the inspection vehicle (1).

2. The railway tunnel surface defect detection device based on image recognition according to claim 1, characterized in that: The integrated positioning assembly comprises a speed encoder (12) and an auxiliary positioning device (13), wherein the speed encoder (12) is mounted on a wheel axle of the inspection vehicle (1), and the auxiliary positioning device (13) is assembled on one side of the inspection vehicle (1).

3. The railway tunnel surface defect detection device based on image recognition according to claim 1, characterized in that: It also includes a power supply management component, which is installed in the detection cabinet (4).

4. The railway tunnel surface defect detection device based on image recognition according to claim 3, characterized in that: The power supply management component is provided with a voltage stabilizing device, a surge protector, and an uninterruptible power supply.

5. A railway tunnel surface defect detection device based on image recognition, characterized by: The invention comprises an inspection vehicle (1), an integrated positioning component and a data processing component, a two-dimensional imaging component (5), a three-dimensional scanning component (6), and an infrared imaging component (7). A frame (8) is provided at the front of the inspection vehicle (1), a plurality of two-dimensional imaging components (5) are arranged around the frame (8) and fixed by an external frame (9), infrared imaging components (7) are installed on both sides of the frame (8), and the three-dimensional scanning component (6) is installed in the middle of the frame (8); the integrated positioning component is installed on the inspection vehicle (1) for image acquisition position recognition and positioning, and the data processing component is installed in the inspection cabinet (4) inside the inspection vehicle (1).

6. The railway tunnel surface defect detection device based on image recognition according to claim 5, characterized in that: The frame (8) is docked with the inspection vehicle (1) via a flange, and the infrared imaging components (7) assembled on both sides of the frame (8) are fixed via brackets (14); the three-dimensional scanning component (6) is assembled in the middle of the frame (8) and fixed via an outer wall (10).

7. The railway tunnel surface defect detection device based on image recognition according to claim 5, characterized in that: A cable box (11) is assembled inside the frame (8).

8. The railway tunnel surface defect detection device based on image recognition according to claim 5, characterized in that: The integrated positioning assembly comprises a speed encoder (12) and an auxiliary positioning device (13), wherein the speed encoder (12) is mounted on a wheel axle of the inspection vehicle (1), and the auxiliary positioning device (13) is assembled on one side of the inspection vehicle (1).

9. The railway tunnel surface defect detection device based on image recognition according to claim 5, characterized in that: It also includes a power supply management component, which is installed in the detection cabinet (4).

10. The railway tunnel surface defect detection device based on image recognition according to claim 9, characterized in that: The power supply management component is provided with a voltage stabilizing device, a surge protector, and an uninterruptible power supply.

Images