Tunnel electromechanical facility detection device based on visual image

Abstract

The utility model relates to the technical field of visual image acquisition, and discloses a tunnel electromechanical facility detection device based on visual images, which comprises a shell and a plurality of line scanning modules, the plurality of line scanning modules are sequentially arranged in the shell from left to right, and the visual fields of all the line scanning modules are overlapped to cover the inner ring of a tunnel. The tunnel detection device has the beneficial effects that the plurality of line scanning modules are sequentially arranged in the shell from left to right, and the visual fields of all the line scanning modules are overlapped to cover the inner ring of the tunnel, so that the image acquisition vehicle provided with the detection device can perform full-width image acquisition on the whole surface of the tunnel only by passing through the tunnel once, and the detection efficiency is improved. Therefore, the data of the whole tunnel electromechanical facility can be collected.

Description

Technical Field

[0001] The utility model relates to the technical field of visual image acquisition, in particular to a tunnel electromechanical facility detection device based on visual images. Background Art

[0002] In the current transportation industry applications, there is no equipment for automatic collection and statistics of the number of tunnel electromechanical facilities and fault statistics "intelligent collection and detection system". Due to the lack of professional automated detection equipment, inspection companies rely entirely on manual work during the maintenance and inspection of tunnel electromechanical facilities. The main problems are: high safety hazards, low detection efficiency, non-objective data, poor data continuity, correlation, traceability and non-intuitive results display.

[0003] A Chinese invention patent with authorization announcement number CN112017114B discloses a method and system for stitching half-images into full-images for tunnel detection. In this application, a tunnel measurement vehicle collects images in a tunnel in two steps, and then stitches the two images together. The operation is cumbersome, and the accuracy of the images obtained is not high. Utility Model Content

[0004] The purpose of the utility model is to solve the problems of high safety hazards in artificial existence, inability to detect quickly, non-objective data and non-intuitive display of results. In view of the above-mentioned shortcomings of the prior art, a tunnel electromechanical facility detection device based on visual images is proposed.

[0005] A tunnel electromechanical facility detection device based on visual images comprises a shell and a plurality of line scanning modules. The plurality of line scanning modules are sequentially installed in the shell from left to right, and the fields of view of all the line scanning modules overlap and cover the inner circle of the tunnel.

[0006] By adopting the above technical solution: multiple line scanning modules are installed in the shell from left to right in sequence, and the fields of view of all the line scanning modules overlap and cover the inner circle of the tunnel, the fields of view of several line scanning modules partially overlap in sequence, and the fields of view of several line scanning modules can completely cover a circle of the inner wall of the tunnel. The image acquisition vehicle equipped with the detection device only needs to pass through the tunnel once to perform full-frame image acquisition on the entire surface of the tunnel, and thus can collect data on the electromechanical facilities of the entire tunnel.

[0007] The above technical solution is further configured as follows: the line scan module includes a line scan camera, and a lens and laser fill light fixedly connected to the line scan camera.

[0008] By adopting the above technical solution: using a line scanning module to collect images of the tunnel, high-speed image collection can be performed, and the obtained image has a high resolution.

[0009] The above technical solution is further configured as follows: the field of view angle of the lens is between 30°-75°, and the focal length of the lens is between 19-50 mm.

[0010] By adopting the above technical solution: by setting the field of view angle of the lens and the focal length of the lens, the field of view of the line scanning module can be adjusted so that the field of view of the line scanning module covers the interior of the tunnel and a full-frame image of the tunnel is obtained.

[0011] The above technical solution is further configured as follows: a plurality of the line scan modules are arranged on the housing in two rows, and the line scan modules in each row are arranged on the housing at intervals.

[0012] By adopting the above technical solution: two columns of line scanning modules are set up, there is sufficient space in the shell to install the line scanning modules, each column of line scanning modules is installed in the shell along an arc, and one line scanning module is located between two line scanning modules in another column of line scanning modules, so that the fields of view of the line scanning modules from left to right can be partially overlapped in sequence.

[0013] The above technical scheme is further configured as follows: the shell includes three side panels, several cover plates and a bottom plate; the three side panels are parallel to each other to form two rows of installation cavities, the two rows of line scanning modules are respectively fixedly connected in the two rows of installation cavities, and the lenses of several line scanning modules are upward and installed in the shell along an arc; the cover plate includes a protective plate and a connecting plate, the protective plate is located above the lens and perpendicular to the optical axis of the lens, a through hole is provided on the protective plate, the lens is located in the through hole, the two ends of the connecting plate are respectively fixedly connected to the sides of two adjacent protective plates, and the two sides of the connecting plate are fixedly connected to the side plates; the bottom plate is fixedly connected to the bottom edges of the three side panels.

[0014] The above technical solution is further configured as follows: the connecting plate is located outside the field of view of the line scanning module

[0015] By adopting the above technical solution: the lens of the line scan module is facing upward and installed in the shell along an arc, so that the fields of view of all line scan modules can be superimposed to form an arc, thereby completely covering the inner circle of the tunnel; a protective plate is provided above the lens to protect the lens and the line scan camera to avoid damage to the lens; the connecting plate is located outside the field of view of the line scan module to avoid the connecting plate blocking the shooting of the line scan module.

[0016] The above technical solution is further configured as follows: a heat sink is provided between the line scanning module and the side plate, and a heat dissipation fan is provided in the shell.

[0017] The above technical solution is further configured as follows: a carrier plate is fixedly connected under the bottom plate, a plurality of limit holes are provided at both ends of the carrier plate, limit bolts are provided in the limit holes, and the limit bolts are used to fix the carrier plate to the roof luggage rack of the car.

[0018] By adopting the above technical solution: the detection device is fixedly connected to the luggage rack on the roof of the car through the carrier plate, and the installation is convenient and stable.

[0019] The above technical solution is further configured as follows: an aviation plug box is provided in the shell, an aviation plug board is provided in the aviation plug box, and a plurality of aviation plugs are provided on the aviation plug board.

[0020] The above technical solution is further configured to include: a switch and a GNSS antenna.

[0021] By adopting the above technical solution: the collected images can be quickly transmitted to the computer system through the switch and GNSS antenna, and the number of tunnel electromechanical facilities can be automatically counted by computer, the detection is fast, the data is objective, and the results are displayed intuitively.

[0022] The beneficial effects of the utility model are:

[0023] 1. Multiple line scanning modules are installed in the shell from left to right in sequence, and the fields of view of all the line scanning modules overlap and cover the inner circle of the tunnel. The image acquisition vehicle equipped with the detection device only needs to pass through the tunnel once to perform full-frame image acquisition on the entire surface of the tunnel, and thus collect data on the electromechanical facilities of the entire tunnel.

[0024] 2. The line scanning module is used to collect images of the tunnel, which can perform high-speed image acquisition and obtain images with high resolution.

[0025] 3. By setting the field of view angle of the lens and the focal length of the lens, the field of view of the line scan module can be adjusted so that the field of view of the line scan module covers the interior of the tunnel and a full-frame image of the tunnel is obtained.

[0026] 4. By setting up a multi-layer shell, the line scanning modules are staggered in the multi-layer shell, which is conducive to the installation and fixation of multiple line scanning modules; at the same time, the line scanning modules can be dispersed to facilitate heat dissipation.

[0027] 5. The detection mechanism is fixed to the luggage rack on the roof of the car through the carrier plate, which ensures the safety and stability of installation and is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0029] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0030] Figure 3 This is a schematic diagram of the installation structure of the utility model.

[0031] Figure 4 It is a schematic diagram of the connection relationship between the utility model and the luggage rack.

[0032] In the figure, 1, shell; 101, side panel; 102, cover plate; 102a, protective plate; 102b, connecting plate; 102c through hole; 103, bottom plate; 2, line scanning module; 3, switch; 4, GNSS antenna; 5, aviation plug box; 6, aviation plug board; 7, aviation plug; 8, heat sink; 9, heat dissipation fan; 10, carrier plate; 11, limit hole; 12, limit bolt; 13, car; 14, luggage rack. DETAILED DESCRIPTION

[0033] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0034] Example 1

[0035] A tunnel electromechanical facility detection device based on visual images, such as Figure 1 As shown, it includes a shell 1, and six line scanning modules 2 are arranged in the shell 1. The six line scanning modules 2 are installed in the shell 1 from left to right. The fields of view of the six line scanning modules 2 are partially overlapped in sequence. The fields of view of all the line scanning modules 2 are superimposed to cover the inner circle of the tunnel. The image acquisition vehicle equipped with the detection device only needs to pass through the tunnel once to perform full-frame image acquisition on the entire surface of the tunnel, and thus collect data of the electromechanical facilities of the entire tunnel.

[0036] like Figure 1 , Figure 2 As shown, a 10 Gigabit Ethernet switch 3 and a GNSS antenna 4 are installed on the housing 1. The collected images can be quickly transmitted to the computer system through the switch 3 and the GNSS antenna 4. The number of tunnel electromechanical facilities is automatically counted by the computer, and the detection is fast, the data is objective, and the results are displayed intuitively. An aviation plug box 5 is arranged in the housing 1, and an aviation plug board 6 is arranged in the aviation plug box 5. Eight aviation plugs 7 are arranged on the aviation plug board 6, one aviation plug 7 is reserved, and there are seven aviation plugs 7 for external use.

[0037] The line scanning module 2 includes a line scanning camera, to which a lens and a laser fill light are fixedly connected. The horizontal field of view angles of the six lenses are 72°, 63.13°, 63.4°, 63.4°, 52.6°, and 39.6°, respectively, and the focal lengths of the six lenses are 25mm, 19mm, 28mm, 28mm, 35mm, and 50mm, respectively. By setting the lens field of view angle and the focal length of the lens, the field of view of the line scanning module 2 can be adjusted so that the field of view of the line scanning module 2 covers the interior of the tunnel, and a full-frame image of the tunnel is obtained.

[0038] Example 2

[0039] like Figure 1 , Figure 2As shown, the line scanning modules 2 are arranged in two rows in the shell 1, each row includes three line scanning modules 2, the line scanning modules 2 are arranged at intervals, and a gap is formed between two adjacent line scanning modules 2. The line scanning module 2 is located within the horizontal extension range of the gap formed by two adjacent line scanning modules 2 in another row, so that the two rows of line scanning modules 2 are installed in the shell 1 from left to right in sequence, and the two rows of line scanning modules 2 are staggered, which is beneficial to make the fields of view of the line scanning modules 2 from left to right partially overlap in sequence; the line scanning modules 2 are divided into two rows of spacing facilities, so that there is sufficient installation and heat dissipation space in the shell 1.

[0040] like Figure 1 As shown, the shell 1 includes three side panels 101, a plurality of cover panels 102 are provided above the three side panels 101, a bottom panel 103 is provided at the bottom, the top edges of the three side panels 101 are arc-shaped, and the three side panels 101 are parallel to each other to form two rows of mounting cavities, and three line scanning modules 2 are fixedly connected in each row of mounting cavities, and the lenses of the line scanning modules 2 are facing upward and are installed in the shell 1 along the arc, so that the fields of view of all the line scanning modules 2 can be superimposed to form an arc, thereby completely covering the inner circle of the tunnel.

[0041] like Figure 1 As shown, the cover plate 102 includes a protective plate 102a and a connecting plate 102b. The protective plate 102a is located above the lens and perpendicular to the optical axis of the lens. A through hole 102c is provided on the protective plate 102a. The lens is located in the through hole 102c. The protective plate 102a is provided above the lens to protect the lens and the line scan camera to avoid damage to the lens. The two ends of the connecting plate 102b are respectively fixedly connected to the sides of two adjacent protective plates 102a. The two sides of the connecting plate 102b are fixedly connected to the side plate 101. The connecting plate 102b is located outside the field of view of the line scan module 2 to avoid blocking the lens.

[0042] Example 3

[0043] like Figure 1 As shown, a heat sink 8 is provided between the line scan module 2 and the side panel 101, the shell 1 is made of a heat dissipating aluminum plate, and a heat dissipating fan 9 is installed in the shell 1. The line scan camera is prone to heat during use, and the use of the heat sink 8 and the heat dissipating fan 9 is beneficial to the heat dissipation of the line scan camera.

[0044] Example 4

[0045] like Figure 3 , Figure 4 As shown, a carrier plate 10 is fixedly connected below the bottom plate 103, and a plurality of limiting holes 11 are provided at both ends of the carrier plate 10. Limiting bolts 12 are provided in the limiting holes 11, and the limiting bolts 12 are used to fix the carrier plate 10 to the roof luggage rack 14 of the car 13. The detection device is fixedly connected to the roof luggage rack 14 of the car 13 through the carrier plate 10, and the installation is convenient and stable. The above-mentioned parts are applicable to the prior art.

[0046] Although some specific embodiments of the utility model have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the utility model. Those skilled in the art of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, but they will not deviate from the direction of the utility model or exceed the scope defined by the attached claims. Those skilled in the art should understand that any modification, equivalent replacement, improvement, etc. made to the above implementation methods based on the technical essence of the utility model should be included in the protection scope of the utility model.

Claims

1. A tunnel electromechanical facility detection device based on visual images, characterized in that: It comprises a housing (1) and a plurality of line scanning modules (2), wherein the plurality of line scanning modules (2) are sequentially installed in the housing (1) from left to right, and the fields of view of all the line scanning modules (2) overlap and cover the inner circle of the tunnel.

2. The tunnel electromechanical facilities detection device based on visual images according to claim 1 is characterized by: The line scan module (2) comprises a line scan camera, and a lens and laser fill light fixedly connected to the line scan camera.

3. The tunnel electromechanical facilities detection device based on visual images according to claim 2 is characterized in that: The field of view angle of the lens is between 30°-75°, and the focal length of the lens is between 19-50 mm.

4. The tunnel electromechanical facilities detection device based on visual images according to claim 1 is characterized in that: The plurality of line scanning modules (2) are arranged on the housing (1) in two rows, and the line scanning modules (2) in each row are arranged on the housing (1) at intervals.

5. The tunnel electromechanical facilities detection device based on visual images according to claim 4 is characterized in that: The shell (1) comprises three side plates (101), a plurality of cover plates (102) and a bottom plate (103); the three side plates (101) are parallel to each other to form two rows of mounting cavities, the two rows of line scanning modules (2) are respectively fixedly connected to the two rows of mounting cavities, and the lenses of the plurality of line scanning modules (2) are upwardly directed and installed in the shell (1) along an arc; the cover plate (102) comprises a protective plate (102a) and a connecting plate (102b), the protective plate (102a) and the connecting plate (102b) are connected to the bottom plate (103); The protective plate (102a) is located above the lens and perpendicular to the optical axis of the lens. A through hole (102c) is provided on the protective plate (102a). The lens is located in the through hole (102c). The two ends of the connecting plate (102b) are respectively fixedly connected to the sides of two adjacent protective plates (102a). The two sides of the connecting plate (102b) are fixedly connected to the side plates (101); and the bottom plate (103) is fixedly connected to the bottom edges of the three side plates (101).

6. The tunnel electromechanical facilities detection device based on visual images according to claim 5 is characterized by: The connecting plate (102b) is located outside the field of view of the line scanning module (2).

7. The tunnel electromechanical facilities detection device based on visual images according to claim 5 is characterized by: A heat dissipation plate (8) is provided between the line scanning module (2) and the side plate (101), and a heat dissipation fan (9) is provided in the housing (1).

8. The tunnel electromechanical facilities detection device based on visual images according to claim 5 is characterized by: A carrier plate (10) is fixedly connected below the bottom plate (103), and a plurality of limiting holes (11) are provided at both ends of the carrier plate (10). Limiting bolts (12) are provided in the limiting holes (11), and the limiting bolts (12) are used to fix the carrier plate (10) to a roof luggage rack (14) of a car (13).

9. The tunnel electromechanical facilities detection device based on visual images according to claim 1 is characterized by: An aviation plug box (5) is arranged in the housing (1), an aviation plug board (6) is arranged in the aviation plug box (5), and a plurality of aviation plugs (7) are arranged on the aviation plug board (6).

10. The tunnel electromechanical facilities detection device based on visual images according to claim 1, characterized in that: It also includes a switch (3) and a GNSS antenna (4).

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