Underground measurement auxiliary device based on three-dimensional laser scanner and measurement method

Abstract

The invention discloses an underground measurement auxiliary device based on a three-dimensional laser scanner. The underground measurement auxiliary device comprises a scanning device body and an auxiliary assembly. The auxiliary assembly comprises a first base, a second base, a bidirectional adjusting assembly, a level reference assembly and a buffer assembly. The first base and the second base are connected through the bidirectional adjusting assembly, and the level reference assembly is located on a first plane of the first base or a parallel plane of the first base. The scanning device body is fixed on a first plane, and the adjusting assembly is perpendicular to the plane and arranged at the at least two fulcrums. At least two buffering assemblies are arranged between the first base and the second base, a first damping mechanism and a second damping mechanism which are opposite in damping direction are arranged between a first connecting piece and a second connecting piece of each buffering assembly, and the damping mechanisms provide damping in at least one direction for the two-way adjusting assembly. According to the invention, effective buffering and damping are realized, the device adapts to complex underground working conditions, and the scanning operation is ensured to be stably and accurately carried out.

Description

Technical Field

[0001] The invention belongs to the field of scanning auxiliary equipment, and in particular relates to an underground measurement auxiliary device based on a three-dimensional laser scanner and a measurement method thereof. Background Art

[0002] At present, there are many problems that affect the smooth progress and accuracy of measurement in the construction of underground ramps. For example, the slope of the underground ramp construction is about -9°, which poses a great challenge to conventional measurement work. When a handheld 3D laser scanner is placed directly on the bottom plate below the ramp control point for scanning and measurement, a series of tricky situations will occur.

[0003] On the one hand, due to the inclination angle of the ramp, the scanner is prone to tipping over due to the lack of effective support and stabilization devices during the rotation of the scanning head. Once the scanner tips over, it will not only damage the instrument itself and bring economic losses, but also affect the normal progress of the measurement work, resulting in the need to spend extra time to repair or replace the instrument, delaying the progress of the entire project.

[0004] On the other hand, the inclined slope makes it difficult for the instrument to achieve centering and leveling operations. Centering and leveling are important prerequisites for ensuring measurement accuracy. If the instrument cannot be accurately centered and leveled, the obtained measurement data will inevitably have large deviations, which will greatly reduce the measurement accuracy. This is a key issue that needs to be solved for underground ramp projects that require high-precision measurement data to guide construction and evaluate project quality.

[0005] In order to overcome the defects in the above technologies, solve the bottleneck problem of ramp 3D scanning measurement, realize the rapid centering and leveling of the instrument, and thus improve the scanning and measurement accuracy, it is particularly important. In view of this, it is urgent to study an underground measurement auxiliary device based on a 3D laser scanner and its measurement method. Summary of the invention

[0006] To this end, the present invention provides an underground measurement auxiliary device and a measurement method based on a three-dimensional laser scanner, which provide anti-seismic buffering and balance adjustment in an underground environment.

[0007] A first aspect of the present invention provides a downhole measurement auxiliary device based on a three-dimensional laser scanner, comprising a scanning device body and an auxiliary component;

[0008] The auxiliary assembly includes a first base, a second base, a two-way adjustment assembly, a level reference assembly and a buffer assembly;

[0009] The first base and the second base are connected via a bidirectional adjustment component, and the two are arranged in parallel when the level reference component is zeroed, and the level reference component is arranged on a first plane of the first base and / or a plane parallel to the first plane;

[0010] The scanning device body is fixed to the first plane, the adjustment components are perpendicular to the first plane and are arranged at at least two supporting points of the first plane, and each of the adjustment components changes the distance between the first end of the adjustment component and the first plane when adjusted independently;

[0011] At least two buffer assemblies are arranged between the first base and the second base, each of the buffer assemblies comprises a first connecting member and a second connecting member respectively arranged on the first base and the second base, and a first damping mechanism and a second damping mechanism are arranged between the first connecting member and the second connecting member;

[0012] Each of the damping mechanisms comprises a damping cavity, a damping member, an elastic member and a damping contact member; a plurality of damping members are arranged in the damping cavity, and a plurality of the elastic members are correspondingly connected to the damping members.

[0013] Each damping member provides damping along at least one adjustment direction of the bidirectional adjustment assembly, and the damping contact member provides different damping strokes when contacting different damping members, and the damping directions of the first damping mechanism and the second damping mechanism are opposite.

[0014] As a preferred embodiment, the bidirectional adjustment assembly has two rotation axes, which limit the first base to move in two circumferential directions along the rotation axes.

[0015] As a preferred embodiment, the first connecting member and the second connecting member are both configured to be arc-shaped with the axis of the rotating shaft as the center;

[0016] The first connecting member comprises a body, a first damping contact portion arranged at an end of the body, and a second damping contact portion arranged at a side of the body close to the second connecting member, wherein the first damping contact portion and the second damping contact portion are both suitable for connecting the damping contact member;

[0017] The second connecting member is provided with a first arc-shaped damping cavity corresponding to the first damping contact portion, and a gap space between the second connecting member and the second damping contact portion forms a second arc-shaped damping cavity;

[0018] The first arc-shaped damping cavity and the first damping contact portion define the first damping mechanism;

[0019] The second arc-shaped damping cavity and the second damping contact portion define the second damping mechanism.

[0020] As a preferred embodiment, the damping contact member has a plurality of contact points, each contact point is arranged corresponding to each damping member, and the intervals between each contact point and the damping member when the damping member is in the initial stroke are unequal.

[0021] As a preferred embodiment, the damping force per unit length of each damping member is the same, and the different lengths of each damping member limit the damping contact member to provide different damping strokes when contacting different damping members.

[0022] As a preferred embodiment, the damping force per unit length of each damping element is the same, the length of each damping element is the same, and the initial position of each contact point is set to provide different damping strokes when different damping contact elements contact different damping elements.

[0023] As a preferred embodiment, the level reference component is a liquid level and / or a pendulum level.

[0024] A second aspect of the present invention provides a measurement method, comprising the following steps:

[0025] S1. Placing an underground measurement auxiliary device at a preset underground slope control point, the device comprising a scanning device body and an auxiliary component, the auxiliary component comprising a first base, a second base, an adjustment component, a level reference component and a buffer component, so that the first plane of the first base is in contact with the placement plane, and the horizontal state of the first base is detected by the level reference component;

[0026] S2. When the level reference assembly shows that the first base is in a non-horizontal state, use the adjustment assembly to adjust by independently changing the distance from the first end of each adjustment assembly to the first plane until the level reference assembly shows that the first base reaches a preset horizontal requirement;

[0027] S3, start the scanner;

[0028] S4. After scanning the downhole slope control points of the preset data, the scanned data is exported to perform modeling.

[0029] As a preferred method, the method further comprises the following steps:

[0030] If it is detected that all damping components in any damping mechanism have reached their limit damping stroke, an alarm is issued.

[0031] The above technical solution of the present invention has the following advantages compared with the prior art:

[0032] 1. The present invention connects the first base and the second base through a bidirectional adjustment component, and cooperates with the level reference component to accurately adjust the horizontal state of the first base. When in a complex underground environment, even if the placement plane is uneven, the adjustment component can be used to independently adjust multiple fulcrum positions to change its distance from the first plane, thereby achieving precise leveling, providing a stable installation foundation for the scanning device body, and ensuring the accuracy and reliability of the scanning data.

[0033] 2. The present invention effectively reduces the impact of vibration and impact that may exist underground on the scanning device body by setting up multiple buffer components. The first damping mechanism and the second damping mechanism have opposite damping directions, and can provide corresponding damping forces under the action of external forces in different directions, thereby protecting the scanning device from damage and extending its service life.

[0034] 3. In the present invention, the first connecting member and the second connecting member are designed to be arc-shaped and are associated with the rotating shaft, so that when the device is impacted by external force or produces displacement changes due to its own rotation, it can flexibly absorb and disperse energy according to different movement directions and amplitudes by utilizing the contact between the damping contact member and different damping members and different damping strokes, adapt to the complex and changeable working conditions underground, and ensure the continuity and stability of the scanning operation. The coordinated work of the damping chamber, damping member, elastic member and damping contact member can not only provide effective buffering and shock absorption, but also suppress the resonance phenomenon caused by vibration to a certain extent, thereby further improving the stability and measurement accuracy of the scanning device.

[0035] 4. The present invention generates an alarm when it detects that the damping member in the damping mechanism reaches the limit damping stroke. This function provides additional safety protection for downhole measurement operations. It can promptly remind the operator that the device may be subjected to a large external impact or is in an abnormal working state, so that the operator can take corresponding measures, such as checking the device, adjusting the working parameters or suspending the operation, to prevent safety accidents and data loss caused by device damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a schematic cross-sectional view of the structure of the device provided by an embodiment of the present invention;

[0037] Figure 2 It is a plan projection schematic diagram of the damping mechanism in the device provided by an embodiment of the present invention.

[0038] Among them, 1. first base; 2. second base; 3. bidirectional adjustment component; 4. rotating shaft; 5. first connecting member; 6. first contact portion; 7. second contact portion; 8. second connecting member; 9. first arc-shaped damping cavity; 10. second arc-shaped damping cavity; 11. damping member; 12. damping contact member. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In a first aspect of the embodiments of the present disclosure, Figure 1 and Figure 2 As shown, a downhole measurement auxiliary device based on a three-dimensional laser scanner is provided, including a scanning device body (not shown in the figure) and auxiliary components;

[0041] The auxiliary assembly includes a first base, a second base, an adjustment assembly, a level reference assembly and a buffer assembly;

[0042] The first base and the second base are connected via a bidirectional adjustment component, and the two are arranged in parallel when the level reference component is zeroed, and the level reference component is arranged on a first plane of the first base and / or a plane parallel to the first plane;

[0043] The scanning device body is fixed to the first plane, the adjustment components are perpendicular to the first plane and are arranged at at least two supporting points of the first plane, and each of the adjustment components changes the distance between the first end of the adjustment component and the first plane when adjusted independently;

[0044] At least two buffer assemblies are arranged between the first base and the second base, each of the buffer assemblies comprises a first connecting member and a second connecting member respectively arranged on the first base and the second base, and a first damping mechanism and a second damping mechanism are arranged between the first connecting member and the second connecting member;

[0045] Each of the damping mechanisms comprises a damping cavity, a damping member, an elastic member and a damping contact member; a plurality of damping members are arranged in the damping cavity, and a plurality of the elastic members are correspondingly connected to the damping members.

[0046] Each damping member provides damping along at least one adjustment direction of the bidirectional adjustment assembly, and the damping contact member provides different damping strokes when contacting different damping members, and the damping directions of the first damping mechanism and the second damping mechanism are opposite.

[0047] As a preferred embodiment, the two-way adjustment component has two rotation axes, which limit the first base to move in two circumferential directions along the rotation axes. In the disclosed embodiment, the first end of the two-way adjustment component is a marked position on its shaft, and the position of the first end is adjusted to have a different distance from the first plane by adjusting the position of its rotation axis. It should be noted that the two rotation axes of the two-way adjustment component can also be equivalent to ball joints with damping, which are common height and angle adjustment methods in the art and will not be described in detail here.

[0048] As a preferred embodiment, the first connecting member and the second connecting member are both configured to be arc-shaped with the axis of the rotating shaft as the center;

[0049] The first connecting member comprises a body, a first damping contact portion arranged at an end of the body, and a second damping contact portion arranged at a side of the body close to the second connecting member, wherein the first damping contact portion and the second damping contact portion are both suitable for connecting the damping contact member;

[0050] The second connecting member is provided with a first arc-shaped damping cavity corresponding to the first damping contact portion, and a gap space between the second connecting member and the second damping contact portion forms a second arc-shaped damping cavity;

[0051] The first arc-shaped damping cavity and the first damping contact portion define the first damping mechanism;

[0052] The second arc-shaped damping cavity and the second damping contact portion define the second damping mechanism.

[0053] As a preferred embodiment, the damping contact member has a plurality of contact points, each contact point is arranged corresponding to each damping member, and the intervals between each contact point and the damping member when the damping member is in the initial stroke are unequal.

[0054] As a preferred embodiment, the damping force per unit length of each damping member is the same, and the different lengths of each damping member limit the damping contact member to provide different damping strokes when contacting different damping members.

[0055] As a preferred embodiment, the damping force per unit length of each damping element is the same, the length of each damping element is the same, and the initial position of each contact point is set to provide different damping strokes when different damping contact elements contact different damping elements.

[0056] As a preferred embodiment, the level reference component is a liquid level and / or a pendulum level.

[0057] A second aspect of the present disclosure provides a measurement method, comprising the following steps:

[0058] S1. Placing an underground measurement auxiliary device at a preset underground slope control point, the device comprising a scanning device body and an auxiliary component, the auxiliary component comprising a first base, a second base, an adjustment component, a level reference component and a buffer component, so that the first plane of the first base is in contact with the placement plane, and the horizontal state of the first base is detected by the level reference component;

[0059] S2. When the level reference assembly shows that the first base is in a non-horizontal state, use the adjustment assembly to adjust by independently changing the distance from the first end of each adjustment assembly to the first plane until the level reference assembly shows that the first base reaches a preset horizontal requirement;

[0060] S3, start the scanner;

[0061] S4. After scanning the downhole slope control points of the preset data, the scanned data is exported to perform modeling.

[0062] As a preferred method, the method further comprises the following steps:

[0063] If it is detected that all damping components in any damping mechanism have reached their limit damping stroke, an alarm is issued.

[0064] The disclosed embodiment connects the first base and the second base through a bidirectional adjustment component, and cooperates with the level reference component to accurately adjust the horizontal state of the first base. When in a complex underground environment, even if the placement plane is uneven, the adjustment component can be used to independently adjust multiple fulcrum positions to change its distance from the first plane, thereby achieving precise leveling, providing a stable installation foundation for the scanning device body, and ensuring the accuracy and reliability of the scanning data.

[0065] The embodiment of the present disclosure effectively reduces the impact of vibration and impact that may exist underground on the scanning device body by setting up multiple buffer components. The first damping mechanism and the second damping mechanism have opposite damping directions, and can provide corresponding damping forces under the action of external forces in different directions, thereby protecting the scanning device from damage and extending its service life.

[0066] In the embodiment of the present disclosure, the first connecting member and the second connecting member are designed to be arc-shaped and are associated with the rotating shaft, so that when the device is impacted by external force or produces displacement changes due to its own rotation, it can flexibly absorb and disperse energy according to different movement directions and amplitudes by utilizing the contact between the damping contact member and different damping members and different damping strokes, thereby adapting to the complex and changeable working conditions underground and ensuring the continuity and stability of the scanning operation. The coordinated work of the damping chamber, damping member, elastic member and damping contact member can not only provide effective buffering and shock absorption, but also suppress the resonance phenomenon caused by vibration to a certain extent, thereby further improving the stability and measurement accuracy of the scanning device.

[0067] The embodiment of the present disclosure generates an alarm when it is detected that the damping member in the damping mechanism reaches the limit damping stroke. This function provides additional safety protection for downhole measurement operations. It can promptly remind the operator that the device may have been subjected to a large external impact or is in an abnormal working state, so that the operator can take corresponding measures, such as checking the device, adjusting working parameters or suspending operations, to prevent safety accidents and data loss caused by device damage.

[0068] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these effects are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described effects, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices, devices and units may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0069] The flowchart and block diagram in the accompanying drawings show the possible architecture, role and operation of the device, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical role. In some alternative implementations, the role marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed in parallel, and they can sometimes be executed in the opposite order, which can depend on the role involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed in parallel, and they can sometimes be executed in the opposite order, which can depend on the role involved. Each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based device that performs the specified role or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A downhole measurement auxiliary device based on a three-dimensional laser scanner, characterized in that: It includes a scanning device body and auxiliary components; The auxiliary assembly includes a first base, a second base, a two-way adjustment assembly, a level reference assembly and a buffer assembly; The first base and the second base are connected via a bidirectional adjustment component, and the two are arranged in parallel when the level reference component is zeroed, and the level reference component is arranged on a first plane of the first base and / or a plane parallel to the first plane; The scanning device body is fixed to the first plane, the bidirectional adjustment components are perpendicular to the first plane and are arranged at at least two supporting points of the first plane, and each of the adjustment components changes the distance between the first end of the adjustment component and the first plane when adjusted independently; At least two buffer assemblies are arranged between the first base and the second base, each of the buffer assemblies comprises a first connecting member and a second connecting member respectively arranged on the first base and the second base, and a first damping mechanism and a second damping mechanism are arranged between the first connecting member and the second connecting member; Each of the damping mechanisms comprises a damping cavity, a damping member, an elastic member and a damping contact member; a plurality of damping members are arranged in the damping cavity, and a plurality of the elastic members are correspondingly connected to the damping members. Each damping member provides damping along at least one adjustment direction of the bidirectional adjustment assembly, and the damping contact member provides different damping strokes when contacting different damping members, and the damping directions of the first damping mechanism and the second damping mechanism are opposite.

2. According to the downhole measurement auxiliary device based on a three-dimensional laser scanner according to claim 1, the bidirectional adjustment component has two rotation axes, which limit the first base to move in two circumferential directions along the rotation axes.

3. According to the downhole measurement auxiliary device based on a three-dimensional laser scanner in claim 2, the first connecting member and the second connecting member are both configured to be arcs with the axis of the rotating shaft as the center of the circle; The first connecting member comprises a body, a first damping contact portion arranged at an end of the body, and a second damping contact portion arranged at a side of the body close to the second connecting member, wherein the first damping contact portion and the second damping contact portion are both suitable for connecting the damping contact member; The second connecting member is provided with a first arc-shaped damping cavity corresponding to the first damping contact portion, and a gap space between the second connecting member and the second damping contact portion forms a second arc-shaped damping cavity; The first arc-shaped damping cavity and the first damping contact portion define the first damping mechanism; The second arc-shaped damping cavity and the second damping contact portion define the second damping mechanism.

4. According to the downhole measurement auxiliary device based on a three-dimensional laser scanner as described in claim 3, the damping contact member has a plurality of contact points, each contact point is arranged corresponding to each damping member, and the intervals between each contact point and the damping member when it is in the initial stroke are not equal.

5. According to the downhole measurement auxiliary device based on the three-dimensional laser scanner of claim 4, the damping force per unit length of each damping element is the same, and the different lengths of each damping element limit the damping contact element to provide different damping strokes when contacting different damping elements.

6. According to the downhole measurement auxiliary device based on the three-dimensional laser scanner of claim 4, the damping force per unit length of each damping element is the same, the length of each damping element is the same, and the initial position of each contact point is set to provide different damping strokes when different damping contact elements contact different damping elements.

7. The downhole measurement auxiliary device based on a three-dimensional laser scanner according to claim 1, characterized in that: The level reference component is a liquid level and / or a pendulum level.

8. A downhole measurement auxiliary method based on a three-dimensional laser scanner, characterized in that: The steps include: S1. Placing an underground measurement auxiliary device at a preset underground slope control point, the device comprising a scanning device body and an auxiliary component, the auxiliary component comprising a first base, a second base, an adjustment component, a level reference component and a buffer component, so that the first plane of the first base is in contact with the placement plane, and the horizontal state of the first base is detected by the level reference component; S2. When the level reference assembly shows that the first base is in a non-horizontal state, use the adjustment assembly to adjust by independently changing the distance from the first end of each adjustment assembly to the first plane until the level reference assembly shows that the first base reaches a preset horizontal requirement; S3, start the scanner; S4. After scanning the downhole slope control points of the preset data, the scanned data is exported to perform modeling.

9. The downhole measurement auxiliary method according to claim 8, characterized in that: The following steps are also included: If it is detected that all damping components in any damping mechanism have reached their limit damping stroke, an alarm is issued.

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