Vehicle-mounted wide-angle tunnel leakage detection device

Abstract

The utility model discloses a vehicle-mounted wide-angle tunnel leakage detection device in the field of tunnel leakage water detection. The vehicle-mounted wide-angle tunnel leakage detection device comprises a bracket, a second base, an adapter plate, two holders, two infrared thermal imagers, a switch, a shielding cover, a computer and a power supply, the infrared thermal imager is installed in the holder, the switch is installed in the switch box, and the holder, the switch box and the shielding cover are fixedly installed on the adapter plate. The adapter plate and the second base are fixedly installed on the support, and the support can be fixedly installed on a longitudinal luggage rack of a car roof. The infrared thermal imaging technology is adopted, and the device has the advantages of being high in precision, high in efficiency, low in cost, small in environmental influence and the like. Meanwhile, the convenience degree of the detection device in use is improved, the working efficiency of the detection device in use is improved, and electrical components are protected.

Description

Technical Field

[0001] The invention relates to a vehicle-mounted wide-angle tunnel leakage detection device, belonging to the technical field of tunnel water leakage detection. Background Art

[0002] Tunnel water leakage is a common structural defect. If not addressed promptly, it may cause problems such as corrosion of tunnel steel bars, cracking of pipe segments, and concrete spalling, seriously affecting the structural strength and operational safety of the tunnel. Therefore, timely detection of water leakage is crucial. Existing detection methods mainly rely on manual detection, which has problems such as low efficiency, high cost, and significant influence from human factors, and is prone to disrupting traffic operations. Other non-destructive testing methods, such as intelligent recognition of visible light images, have shortcomings such as low recognition accuracy, significant influence from the tunnel environment, and inability to detect invisible leaks. 3D laser scanning technology has shortcomings such as high cost, long processing time, and inability to detect invisible leaks.

[0003] After searching, the patent number is 201910856676.3, and the utility model titled "Device and Method for Accurately Identifying Tunnel Structure Water Leakage Based on Infrared Thermal Imaging" discloses a device for identifying tunnel structure water leakage based on infrared thermal imaging. However, this device still has some shortcomings to a certain extent. First, the device is relatively cumbersome to install, which seriously affects the convenience of using the device. Second, the device has a relatively single detection direction and angle during detection, resulting in low working efficiency. Third, the device does not have a protective function for electrical components when in use. Summary of the Invention

[0004] The purpose of the present invention is to provide a vehicle-mounted wide-angle tunnel leakage detection device, which mainly solves the technical problems of low precision, low efficiency, high cost and great environmental impact in the current tunnel leakage detection methods, improves installation efficiency, and has a wide detection angle range.

[0005] In order to achieve the above objectives / solve the above technical problems, the present invention is implemented by adopting the following technical solutions.

[0006] On the one hand, the present invention provides a vehicle-mounted wide-angle tunnel leakage detection device, including: a first base, an adapter plate, a pan-tilt head, two infrared thermal imagers, a switch and an electronic device, wherein the two ends of the lower surface of the adapter plate are respectively connected to the first base, the two ends of the upper surface of the adapter plate are respectively connected to the pan-tilt head, the pan-tilt head is connected to the infrared thermal imager, the middle of the adapter plate is connected to the switch, the switch is electrically connected to the electronic device and the infrared thermal imager, the horizontal field of view angle × vertical field of view angle of the infrared thermal imager can reach 68.4°×54°, the maximum horizontal field of view angle of two infrared thermal imagers can reach 136.8°, and the spatial resolution can reach 1.308mrad.

[0007] Furthermore, the first base is arranged in a rectangular shape, and a limit block is symmetrically arranged on one side surface of the first base. A limit groove is provided on the adapter plate. When the first base is connected to the adapter plate, the limit block is clamped in the limit groove. The limit groove and the limit block are mainly used for docking the first base and the adapter plate. Since the limit block is rectangular, when the limit block is at the outer end inside the limit groove, the connection holes of the first base and the adapter plate can be aligned to facilitate connection.

[0008] Furthermore, a plurality of connection holes are respectively provided on the first base and the adapter plate, and the connection holes are evenly distributed around the first base, so as to achieve a good fixing effect.

[0009] Furthermore, the pan-tilt head includes: a second base, a wire socket, a horizontal rotation device, a vertical rotation device and a front cover. The horizontal rotation device is connected to the second base, and the side of the horizontal rotation device is connected to the vertical rotation device. The vertical rotation device is internally connected to the infrared thermal imager, and a front cover is provided at the front end of the infrared thermal imager. A wire socket is provided on one side of the second base for connecting the line between the infrared thermal imager and the switch. The second base is connected to the adapter board through the connecting hole. The switch is installed in the switch box. The switch box is made of aluminum alloy and has a protection level of IP67, which is used to protect the switch and connecting cables. The pan-tilt head can realize electric angle adjustment through software, and supports a horizontal rotation angle of 360° and a vertical rotation angle of -90°~+90°. The pan-tilt head can be equipped with a voltage stabilizing module to filter instantaneous unstable current.

[0010] Furthermore, it includes two parallel brackets, the first base is installed horizontally between the brackets, and the bracket is used to be installed horizontally on the luggage rack of the detection vehicle roof.

[0011] Furthermore, a shielding cover is provided between the pan-tilt heads to shield the cables between the pan-tilt heads and the switch box.

[0012] Furthermore, it includes a power supply, which is electrically connected to the electronic equipment and the switch and is used to power the electronic equipment and the switch. The electronic equipment includes: a computer, which is convenient for controlling the detection equipment and processing the detection data.

[0013] Furthermore, the bracket is made of alloy, has a load-bearing capacity greater than 80 kg, and can be fixed to the longitudinal roof luggage rack using matching screws.

[0014] Compared with the existing technology, the beneficial effects achieved by the present invention are as follows: the present invention adopts two infrared thermal imagers and realizes electric adjustment of the angle of the infrared thermal imagers through a pan-tilt platform. The maximum horizontal field of view of the two infrared thermal imagers can reach 136.8°. During detection, full coverage detection of the tunnel can be achieved by controlling the angles of the two infrared thermal imagers, without the need for multiple round trips. In addition, the vehicle-mounted platform is faster and more convenient than other methods, thereby greatly improving work efficiency.

[0015] The utility model is provided with a protective mechanism, the infrared thermal imager is assembled in the pan-tilt head, the switch is assembled in the switch box, and the switch box and the cable are assembled in the shielding cover, thereby preventing the electrical components from being exposed and damaged when the detection device is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 This is a top view of the overall structure of the utility model after the shielding cover is opened;

[0018] Figure 3 This is the main view of the overall structure of the utility model;

[0019] Figure 4 This is a top view of the connecting base described in the present utility model;

[0020] Figure 5 This is a top view of the adapter plate described in the present utility model;

[0021] Figure 6 A three-dimensional structural diagram of the camera platform described in the present invention;

[0022] Figure 7 This is a schematic diagram of the connection of the circuit system of the utility model;

[0023] Among them: 1 bracket, 2 base, 201 limit block, 202 mounting hole, 3 adapter plate, 301 limit slot, 4 pan / tilt, 401 connection hole, 402 second base, 403 wire plug hole, 404 horizontal rotation device, 405 vertical rotation device, 406 front cover, 5 shielding cover, 6 switch, 7 cable, 8 infrared thermal imager, 9 power supply, computer 10. DETAILED DESCRIPTION

[0024] It should be noted that:

[0025] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention, rather than limitations on the technical solution of the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0026] The term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " generally indicates an "or" relationship between the related objects. Example

[0027] like Figures 1-3 An embodiment shown: This embodiment is a vehicle-mounted wide-angle tunnel leakage detection device, including: a first base 2, an adapter plate 3, a pan-tilt head 4, an infrared thermal imager 8, a switch 6 and an electronic device, wherein the two ends of the lower surface of the adapter plate 3 are respectively connected to the first base 2, and the two ends of the upper surface of the adapter plate 3 are respectively connected to the pan-tilt head 4, the pan-tilt head 4 is connected to the infrared thermal imager 8, the middle of the adapter plate 3 is connected to the switch 6, and the switch 6 electrically connects the electronic device and the infrared thermal imager 8. The horizontal field of view angle × vertical field of view angle of the infrared thermal imager 8 can reach 68.4°×54°. The maximum horizontal field of view angle of two infrared thermal imagers 8 can reach 136.8°, and the spatial resolution can reach 1.308 mrad. It also includes two parallel brackets 1, the first base 2 is horizontally installed between the brackets 1 through the mounting hole 202, the bracket 1 is made of alloy, has a load-bearing capacity greater than 80 kg, and can be fixed to the longitudinal luggage rack on the roof using matching screws. A shielding cover 5 is provided between the pan-tilt heads 4 to shield the cable 7 between the pan-tilt heads 4 and the switch box.

[0028] like Figures 4 and 5 As shown, the first base 2 is arranged in a rectangular shape, and a limit block 201 is symmetrically arranged on one side surface of the first base 2. A limit groove 301 is provided on the adapter plate 3. When the first base 2 is connected to the adapter plate 3, the limit block 201 is clamped in the limit groove 301; a plurality of connecting holes 401 are respectively provided on the first base 2 and the adapter plate 3, and the connecting holes 401 are evenly distributed around the first base 2.

[0029] like Figure 6 As shown, the pan / tilt head 4 includes: a second base 402, a wire insertion hole 403, a horizontal rotation device 404, a vertical rotation device 405 and a front cover 406. The second base 402 is connected to the horizontal rotation device 404, the side of the horizontal rotation device 404 is connected to the vertical rotation device 405, the vertical rotation device 405 is internally connected to the infrared thermal imager 8, and the front cover 406 is set at the front end of the infrared thermal imager 8. After the infrared thermal imager 8 is installed in the vertical rotation device 405, the front cover 406 is tightened with the vertical rotation device 405 by screws. The second base 402 is connected to the infrared thermal imager 8 and the switch 6. The second base 402 is connected to the adapter plate 3 through the connection hole 401. The switch 6 is installed in the switch box. The switch box is made of aluminum alloy with a protection grade of IP67 and is used to protect the switch 6 and the connecting cable 7. The pan-tilt head 4 can be electrically adjusted through software and supports a horizontal rotation angle of 360° and a vertical rotation angle of -90° to +90°. The pan-tilt head 4 can be equipped with a voltage stabilizing module to filter instantaneous unstable current.

[0030] like Figure 7 As shown in the circuit system diagram, two infrared thermal imagers 8 are connected to the switch 6 via a network cable, and the switch 6 is further connected to the computer 10 via a network cable, so as to realize communication between the two infrared thermal imagers 8 and the computer 10; a power supply 9 is connected to the computer 10 and the switch 6 via wires, and the switch 6 is further connected to the two infrared thermal imagers 8 via wires, so as to realize power supply to the infrared thermal imagers 8, the switch 6 and the computer 10. When in use, the computer 10 and the power supply 9 are placed in the car, and the line connections of the computer, the switch 6 and other devices are made through the roof sunroof.

[0031] The installation steps of this embodiment are as follows: first, fix the bracket 1 horizontally on the longitudinal roof rack of the inspection vehicle; second, install the infrared thermal imager in the pan-tilt head 4 and fix the front cover 406 of the vertical rotation device; install the switch in the switch box 6; third, connect the pan-tilt head 4 to the adapter plate 3 and the base 2; connect the switch box 6 to the adapter plate 3 and connect the cable between the pan-tilt head and the switch; finally, connect the installed base 2 to the bracket 1. When disassembling this embodiment, you only need to remove the base 2 from the bracket 1 and keep the bracket 1 connected to the longitudinal roof rack for future use.

[0032] This utility model adopts two infrared thermal imagers and realizes electric adjustment of the angle of the infrared thermal imagers through a pan-tilt platform. The maximum horizontal field of view of the two infrared thermal imagers can reach 136.8°. During detection, full coverage detection of the tunnel can be achieved by controlling the angle of the two infrared thermal imagers, without the need for multiple round trips. In addition, the vehicle-mounted platform is faster and more convenient than other methods, thereby greatly improving work efficiency.

[0033] The utility model is provided with a protective mechanism, the infrared thermal imager is assembled in the pan-tilt head, the switch is assembled in the switch box, and the switch box and the cable are assembled in the shielding cover, thereby preventing the electrical components from being exposed and damaged when the detection device is in use.

[0034] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which are all protected by the present invention.

Claims

1. A vehicle-mounted wide-angle tunnel leakage detection device, characterized in that: include: A first base, an adapter plate, a pan-tilt head, two infrared thermal imagers, a switch and an electronic device, wherein the two ends of the lower surface of the adapter plate are respectively connected to the first base, the two ends of the upper surface of the adapter plate are respectively connected to the pan-tilt head, the pan-tilt head is connected to the infrared thermal imager, the middle part of the adapter plate is connected to the switch, and the switch is electrically connected to the electronic device and the infrared thermal imager.

2. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 1, characterized in that: The first base is rectangular, and a limit block is symmetrically provided on one side surface of the first base. A limit groove is provided on the adapter plate. When the first base is connected to the adapter plate, the limit block is clamped in the limit groove.

3. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 2, characterized in that: A plurality of connection holes are respectively provided on the first base and the adapter plate, and the connection holes are evenly distributed around the first base.

4. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 1, characterized in that: The pan / tilt head includes: a second base, a wire socket, a horizontal rotation device, a vertical rotation device and a front cover. The horizontal rotation device is connected to the second base, the side of the horizontal rotation device is connected to the vertical rotation device, the vertical rotation device is internally connected to the infrared thermal imager, and a front cover is provided at the front end of the infrared thermal imager. A wire socket is provided on one side of the second base for connecting the line between the infrared thermal imager and the switch, and the second base is connected to the adapter plate through the connecting hole.

5. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 1, characterized in that: It also includes two parallel brackets, and the first base is installed transversely between the brackets.

6. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 1, characterized in that: A shielding cover is provided between the platforms.

7. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 1, characterized in that: It includes a power supply, which is electrically connected to the electronic device and the switch and is used to supply power to the electronic device and the switch.

8. The vehicle-mounted wide-angle tunnel leakage detection device according to claim 5, characterized in that: The bracket is made of alloy.

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