Geophysical prospecting device for geological prospecting

Abstract

The utility model discloses a geophysical prospecting device for geological prospecting. The geophysical prospecting device comprises an electric trolley, a geological radar, a panoramic camera and a laser radar, the electric trolley comprises a frame, the geological radar is arranged in the frame and is close to the ground downwards, and the geological radar is located in the center of the frame; the frame is provided with a camera support which can rotate to lie down and stand up, and the camera support is provided with a panoramic camera; a radar support capable of turning over by 180 degrees is arranged on the upper portion of one end of the vehicle frame, and a laser radar is fixedly arranged on the radar support. After the camera support lies down and the radar support overturns and lies down, the camera support, the panorama camera, the radar support and the laser radar are all located in the frame. According to the utility model, the geological radar, the panoramic camera and the laser radar are combined and integrated on the electric trolley, internal and external comprehensive diagnosis and exploration are carried out on the existing tunnel, the consistency of internal and external diseases of the tunnel in spatial distribution is found, and accurate geological data is provided.

Description

Technical Field

[0001] The present application relates to the technical field of geological prospecting and geophysical prospecting equipment, and in particular to a geophysical prospecting device for geological prospecting. Background Art

[0002] In some tunnel construction, existing geophysical exploration equipment is usually used to detect the geological conditions in front of the tunnel construction front. However, if new geological conditions appear around the tunnel that has been constructed, it is impossible to make timely judgments, such as the generation of cavities, abnormal groundwater, and other geological conditions that may affect the stability of the tunnel structure, and they cannot be discovered in time.

[0003] In existing geophysical exploration, ground penetrating radar is a geophysical method that uses antennas to transmit and receive high-frequency electromagnetic waves to detect the material properties and distribution patterns inside the medium. It has been widely used in underground imaging and detection, and is suitable for the detection of defects such as cavities, looseness, depletion and water content inside the soil around tunnels.

[0004] However, satellite positioning cannot be used for positioning in the tunnel, so auxiliary means are needed, such as panoramic cameras, which can accurately calibrate the position.

[0005] LiDAR can be used to detect changes that have already occurred and affected the shape of the tunnel. Laser radar measures the distance between the target and the radar by emitting high-intensity laser pulses, and can obtain the target's three-dimensional model and spectral reflection information. It is often used to detect surface defects in tunnels, such as cracks, deformation, and water seepage.

[0006] However, these devices usually need to be used separately, which is time-consuming and labor-intensive. The data obtained are not synchronized and have poor consistency, which also brings inconvenience to the maintenance of the tunnel in the later stage. Therefore, there is an urgent need for efficient and accurate detection methods and positioning of geological conditions with greater safety risks. Utility Model Content

[0007] In view of this, the present application provides a geophysical exploration device for geological exploration, which combines geological radar, panoramic camera and lidar, and is integrated on an electric vehicle to conduct comprehensive internal and external diagnostic exploration of existing tunnels, and find that the spatial distribution of internal and external diseases of the tunnels is consistent, providing accurate geological data.

[0008] According to one aspect of the present application, an embodiment provides a geophysical exploration device for geological exploration, including an electric trolley, a geological radar, a panoramic camera, and a laser radar;

[0009] The electric vehicle comprises a frame, wheels, a control box and a power box. Four wheels are mounted on the frame. The control box and the power box are arranged on the same side of the frame. A battery module is detachably arranged in the power box. A controller is arranged in the control box to control the electric vehicle, the panoramic camera and the laser radar.

[0010] The geological radar is arranged in the vehicle frame, downward and close to the ground, and the geological radar is located in the central part of the vehicle frame.

[0011] The frame is provided with a camera bracket that can be rotatably lowered and raised on the other side of the control box and the power box, and a panoramic camera is provided on the camera bracket;

[0012] A radar bracket that can be flipped 180 degrees is provided on the upper part of one end of the frame, and a laser radar is fixed on the radar bracket;

[0013] After the camera bracket is laid down and the radar bracket is flipped over and laid down, the camera bracket and the panoramic camera, the radar bracket and the laser radar are all located inside the vehicle frame.

[0014] Furthermore, two of the wheels of the electric trolley are balancing trolley motor wheels, and the two balancing trolley motor wheels are arranged at the same end of the electric trolley.

[0015] Furthermore, the battery module is a removable and rechargeable lithium battery module.

[0016] Furthermore, the camera bracket includes a column and a cross arm, and the panoramic camera is arranged on the cross arm.

[0017] Furthermore, the upright post and the cross arm of the camera bracket are telescopic rods.

[0018] Furthermore, at least one LED lighting lamp can be detachably provided on the column and / or cross arm of the camera bracket to provide lighting when working in the tunnel.

[0019] Furthermore, the panoramic camera is an infrared night vision panoramic camera.

[0020] Furthermore, the laser radar is an omnidirectional laser radar.

[0021] Furthermore, the electric trolley is provided with an electric winch, and the electric winch is arranged on the frame on the other side corresponding to the radar bracket.

[0022] Furthermore, a cable is wound around the electric winch, and the cable is a cable with steel wire. The cable is connected to a control box on the electric trolley, and the other end of the cable is connected to an operating handle, so that the geophysical exploration device for geological exploration of the present invention can operate in a tunnel without human presence and can be controlled in real time.

[0023] The beneficial effects of the utility model are:

[0024] 1. The utility model is a geophysical prospecting device for geological exploration, which integrates a geological radar, a panoramic camera and a laser radar on an electric trolley, and can conduct geological exploration of the inner surface and some parts of the tunnel, so that the geological data obtained by the geological radar accurately corresponds to the specific position in the tunnel, that is, the situation inside and outside the tunnel is processed in the same space and time at the same spatial position.

[0025] 2. The utility model is a geophysical prospecting device for geological exploration. An electric winch is provided on an electric trolley, which can be remotely operated by an operator. It is extremely convenient for tunnels with smaller diameters or tunnels that have been unmanned for a long time. Moreover, even if the device of the utility model falls into a pit in the tunnel, it can be dragged out by the winch. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a side view of the structure of the utility model when it is unfolded;

[0027] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above when closed.

[0028] In the figure: 1. Electric trolley; 11. Frame; 12. Wheels; 13. Power box; 14. Control box; 2. Geological radar; 3. Panoramic camera; 31. Camera bracket, 311. Column; 312. Cross arm; 4. LiDAR; 41. Radar bracket; 5. Electric winch; 51. Cable. DETAILED DESCRIPTION

[0029] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0030] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0031] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0032] Example:

[0033] Please refer to Figure 1 and Figure 2 According to one aspect of the present application, an embodiment provides a geophysical exploration device for geological exploration, comprising an electric vehicle 1, a geological radar 2, a panoramic camera 3 and a laser radar 4;

[0034] The electric vehicle 1 includes a frame 11, wheels 12, a control box 13 and a power box 14. Four wheels 12 are installed on the frame 11. The control box 13 and the power box 14 are arranged on the same side of the frame 11. A battery module is detachably arranged in the power box 13. A controller is arranged in the control box 14 to control the electric vehicle 1, the geological radar 2, the panoramic camera 3 and the laser radar 4.

[0035] The geological radar 2 is arranged in the frame 11 and is downward close to the ground. The geological radar 2 is located in the central part of the frame 11.

[0036] The frame 11 is provided with a camera bracket 31 that can be rotatably lowered and erected on the other side of the control box 13 and the power box 14, and the panoramic camera 3 is provided on the camera bracket 31;

[0037] A radar bracket 41 that can be flipped 180 degrees is provided on the upper portion of one end of the vehicle frame 11, and a laser radar 4 is fixedly provided on the radar bracket 41;

[0038] After the camera bracket 31 lies down and the radar bracket 41 flips over and lies down, the camera bracket 31 and the panoramic camera 3 , the radar bracket 41 and the laser radar 4 are all located inside the vehicle frame 11 .

[0039] Furthermore, two of the wheels 12 of the electric trolley 1 are balancing trolley motor wheels, and the two balancing trolley motor wheels are arranged at the same end of the electric trolley 1 .

[0040] Furthermore, the battery module is a removable and rechargeable lithium battery module.

[0041] Furthermore, the camera bracket 31 includes a column 311 and a cross arm 312 , and a panoramic camera is provided on the cross arm 312 .

[0042] Furthermore, the upright post 311 and the cross arm 312 of the camera bracket 31 are retractable rods.

[0043] Furthermore, at least one LED lighting lamp can be detachably provided on the column 311 and / or the cross arm 312 of the camera bracket 31 to provide lighting when working in the tunnel.

[0044] Furthermore, the panoramic camera 3 is an infrared night vision panoramic camera.

[0045] Furthermore, the laser radar 4 is an omnidirectional laser radar.

[0046] Furthermore, the electric trolley 1 is provided with an electric winch 5 , which is arranged on the frame 11 on the other side corresponding to the radar bracket 41 .

[0047] Furthermore, a cable 51 is wound around the electric winch 5, and the cable 51 is a cable with steel wire. The cable 51 is connected to the control box 14 on the electric trolley 11, and the other end of the cable 51 is connected to the operating handle, so that the geophysical exploration device for geological exploration of the present invention can operate in the tunnel without human follow-up and can be controlled in real time.

[0048] For geophysical exploration of existing tunnels, this new system uses a panoramic camera and lidar to quickly and comprehensively scan the tunnel surface to locate cracks and leaks. Combined with historical data, this system can locate tunnel deformation and determine the spatial location and size of surface defects. Geological radar is then used to detect abnormal areas within the tunnel lining where defects are present, to determine whether separation or delamination has occurred. This combination of technologies allows for unified spatial and temporal analysis of the spatial locations of defects both inside and outside the tunnel, identifying their locations.

[0049] In this embodiment, the geological radar uses the transmitter in the antenna to transmit electromagnetic waves into the interior of the object and receives the reflected signals. However, differences in dielectric constants within the medium cause partial reflections, hindering the propagation of the electromagnetic waves. This means that when the dielectric properties of the lining exhibit discontinuities (such as reinforcement, delamination at the interface between different materials, cracks, or fissures), the electromagnetic waves will be reflected and recorded by the receiver through the receiving antenna. Because the dielectric constant of air is smaller than that of the tunnel structure, cavity defects can result in strong amplitude reflections.

[0050] The panoramic camera can capture the actual situation inside the tunnel in real time, forming a real-time image of the inner surface of the tunnel.

[0051] LiDAR is an omnidirectional laser radar, capable of 3D laser scanning. 3D laser scanning technology uses the principle of laser ranging to quickly build a 3D model of the structure being measured. The collection of high-density points captured by a 3D laser scanner is called a point cloud, which primarily includes information such as the points' 3D coordinates, grayscale value, color, and reflection intensity. The accuracy of the point cloud can be evaluated by measuring its stitching fit, the amount of noise, and color difference. By recording the 3D coordinates and reflection intensity of a large number of point clouds reflected from the surface of the measured object, LiDAR can quickly reconstruct a 3D model of the target.

[0052] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. Those skilled in the art of the present invention can make some simple deductions, modifications or substitutions based on the concept of the present invention.

Claims

1. A geophysical exploration device for geological prospecting, characterized in that: Including electric car, geological radar, panoramic camera and lidar; The electric vehicle comprises a frame, wheels, a control box and a power box. Four wheels are mounted on the frame. The control box and the power box are arranged on the same side of the frame. A battery module is detachably arranged in the power box. A controller is arranged in the control box to control the electric vehicle, the panoramic camera and the laser radar. The geological radar is arranged in the frame, downward and close to the ground, and the geological radar is located in the central part of the frame; The frame is provided with a camera bracket that can be rotatably lowered and raised on the other side of the control box and the power box, and a panoramic camera is provided on the camera bracket; A radar bracket that can be flipped 180 degrees is provided on the upper part of one end of the frame, and a laser radar is fixed on the radar bracket; After the camera bracket is laid down and the radar bracket is flipped over and laid down, the camera bracket and the panoramic camera, the radar bracket and the laser radar are all located inside the vehicle frame.

2. A geophysical exploration device for geological prospecting according to claim 1, characterized in that: Two of the wheels of the electric trolley are balancing car motor wheels, and the two balancing car motor wheels are arranged at the same end of the electric trolley.

3. A geophysical exploration device for geological prospecting according to claim 1, characterized in that: The battery module is a removable and rechargeable lithium battery module.

4. A geophysical exploration device for geological prospecting according to claim 1, characterized in that: The camera bracket includes a column and a cross arm, and a panoramic camera is arranged on the cross arm.

5. A geophysical exploration device for geological prospecting according to claim 4, characterized in that: The upright post and the cross arm of the camera bracket are telescopic rods.

6. A geophysical exploration device for geological prospecting according to claim 5, characterized in that: At least one LED lighting lamp can be detachably provided on the column and / or the cross arm of the camera bracket.

7. The geophysical exploration device for geological exploration according to claim 1, characterized in that: The panoramic camera is an infrared night vision panoramic camera.

8. The geophysical exploration device for geological exploration according to claim 1, characterized in that: The laser radar is an omnidirectional laser radar.

9. The geophysical exploration device for geological exploration according to claim 1, characterized in that: The electric trolley is provided with an electric winch, and the electric winch is arranged on the frame on the other side corresponding to the radar bracket.

10. The geophysical exploration device for geological exploration according to claim 9, characterized in that: A cable is wound around the electric winch, wherein the cable is a cable with steel wires. The cable is connected to a control box on the electric trolley, and the other end of the cable is connected to an operating handle.

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