Digital building surveying and mapping auxiliary device based on BIM

Abstract

The invention relates to a BIM-based digital building surveying and mapping auxiliary device which is characterized in that a power supply is arranged in a mounting platform, a visual perception structure is mounted above a damping mechanism through the mounting platform, a data processing center is arranged in the visual perception structure, the damping mechanism is mounted in a shell, and the damping mechanism comprises a platform for placing parts; the buffering part used for buffering the platform and driving the damping part is arranged on the lower end face of the platform, a distance is reserved between the platform and the damping part, and multi-dimensional suppression of vibration of the platform is achieved through linkage of the buffering part and the damping part. Four symmetrically arranged buffer rods of the buffer part are combined with springs, so that impact energy in the vertical direction can be absorbed; through the damping part driven by the connecting rod, part of impact is converted into differential motion in the horizontal direction by utilizing a sliding groove mechanism of the driving frame and the sliding pin, and the amplitude of the platform after being stressed is reduced. And the platform can quickly recover to be stable when being subjected to external impact, and is suitable for high-precision visual surveying and mapping equipment.

Description

Technical Field

[0001] This invention relates to the fields of building information technology and engineering surveying technology, and in particular to a BIM-based digital building surveying auxiliary device. Background Technology

[0002] In the fields of building information technology and engineering surveying, the accuracy and stability requirements for on-site data acquisition equipment are extremely high. Digital building surveying auxiliary devices often need to integrate precision components such as visual sensors and laser scanners to perform long-term monitoring or 3D modeling in complex construction environments. However, construction sites inherently have many vibration sources, such as the operation of heavy machinery, the passage of material transport equipment, and the impact of manual operations. Vibrations can easily be transmitted to the surveying unit through the equipment support, resulting in blurred data, point drift, or model splicing misalignment, directly affecting the accuracy and reliability of the BIM model.

[0003] Existing vibration damping solutions employ passive vibration isolation using a single spring base or rubber pad. While these solutions can absorb some high-frequency vibrations, they have several shortcomings: traditional structures focus on vertical buffering and are insufficient in suppressing horizontal or multi-directional vibrations, making it difficult to meet the multi-degree-of-freedom stability requirements of surveying instruments; fixed-parameter damping elements cannot adapt to changes in the weight of the surveying equipment, easily leading to resonant frequency shifts and amplified vibrations; the combination of springs and dampers results in slow recovery under sudden impacts, with long platform amplitude decay times, affecting the timeliness of continuous surveying data; and there is a lack of real-time monitoring and feedback of vibration status. Summary of the Invention

[0004] This invention provides a BIM-based digital building surveying auxiliary device that can suppress multi-directional vibrations, adjust vibration reduction parameters through data-driven adjustment, reduce manual intervention, and improve BIM surveying efficiency.

[0005] A BIM-based digital building surveying auxiliary device includes: a vibration damping mechanism, an installation platform, and a visual perception structure. A power supply is installed within the installation platform. The visual perception structure is mounted above the vibration damping mechanism via the installation platform. A data processing center is located within the visual perception structure. The vibration damping mechanism is installed within a housing and includes a platform for placing parts. A buffer section is provided on the lower end face of the platform for platform buffering and driving the vibration damping part. A distance is maintained between the platform and the vibration damping part.

[0006] Furthermore, the buffer section includes multiple buffer rods with one end mounted on the lower end face of the platform, the other end of the buffer rods slidably mounted on the buffer sleeve, and a spring installed between the end of the buffer rod and the buffer sleeve. A connecting rod for driving the shock-absorbing section is installed on the circumferential wall of the buffer rod. The shock-absorbing section includes a drive frame mounted on the connecting rod. The drive frame is provided with a sliding groove, which is elongated. A sliding pin is slidably mounted in the sliding groove. A mounting block is installed at one end of the sliding pin. The lower end face of the mounting block is mounted on the housing via a sliding rod. The end of the sliding rod away from the mounting block is mounted on the housing via a first spring.

[0007] Furthermore, four buffer rods are provided, arranged symmetrically in pairs on the lower end face of the platform. Buffer rods on the same side are connected by connecting rods. The buffer sleeve is provided with a clearance groove for the connecting rod to avoid obstruction. The clearance groove is elongated. The connecting rod is slidably installed in a sliding groove provided on the drive frame. The end of the drive frame near the housing is movably installed on the housing via a shaft. A connecting platform is installed at the end of the sliding rod away from the mounting block. The first spring is installed on the sliding rod via the connecting platform.

[0008] Furthermore, it includes a second damping mechanism located below the damping mechanism, the second damping mechanism including a damping structure mounted on the adjustment platform.

[0009] Furthermore, the shock-absorbing structure includes a support platform, on which multiple shock-absorbing rods are installed. A second spring is installed between adjacent shock-absorbing rods. The second spring is installed at the end of the shock-absorbing rod away from the support platform. A wedge block for connecting the second spring is installed at the end of the shock-absorbing rod away from the support platform. The adjacent surfaces of the wedge block are parallel.

[0010] Furthermore, the adjustment platform includes a platform plate, on which a stepped slide groove is provided, and a stepped slider is slidably installed in the stepped slide groove. A groove for installing the stepped slider is provided in the middle position of the wedge block.

[0011] Furthermore, the platform is provided with an annular frame on its exterior. The annular frame is slidably mounted on the outer wall of the outer shell. The outer shell is provided with a sliding groove. The annular frame is connected to the platform through a connecting block. The connecting block is slidably mounted in the sliding groove provided on the outer shell. An extension plate is provided on the outer wall of the annular frame. A hydraulic device for driving the annular frame is provided on the lower end face of the extension plate. The hydraulic device is mounted on the upper end face of the base plate. The base plate is made of magnetic material. The outer shell is mounted on the upper end face of the base plate. The hydraulic device is located around the outer shell.

[0012] Furthermore, the support platform is provided with a groove for connecting the platform, and a buffer pad is provided in the groove.

[0013] Furthermore, the shock absorption mechanism has a sensing structure inside for measuring the vibration amplitude, and the sensing structure is connected to the data processing center.

[0014] Furthermore, the visual sensing structure includes a mounting base on which a camera for capturing external information is mounted via a pivot.

[0015] The beneficial effects of this invention are:

[0016] 1. This device achieves multi-dimensional suppression of platform vibration through the linkage of the buffer section and the shock absorber section. The buffer section, with its four symmetrically arranged buffer rods and springs, absorbs vertical impact energy; the shock absorber section, driven by a linkage, utilizes a sliding mechanism between the drive frame and the sliding pin to convert part of the impact into horizontal differential motion, reducing the amplitude of the platform's vibration under stress. This allows the platform to quickly recover stability when subjected to external impacts, making it suitable for use in high-precision visual surveying equipment.

[0017] 2. The second shock absorption mechanism of this device enhances its adaptability. Driven by a hydraulic device, the ring frame allows adjustment of the platform height, thereby changing the distance between the support platform and the connecting platform, enabling the shock absorption system to accommodate surveying equipment of varying weights. The combination of the shock absorber rod and wedge block, along with the second spring, ensures effective shock absorption under different load conditions.

[0018] 3. This device achieves real-time monitoring of vibration status by incorporating an amplitude sensing structure within the internal cavity and connecting it to the data processing center of the visual perception structure. It can dynamically analyze vibration data, providing a basis for optimizing vibration reduction schemes.

[0019] 4. The base plate of this device is made of magnetic material, allowing for quick and easy attachment to an external support via magnetic attraction, adapting to various construction site environments. The camera in the visual perception structure is mounted via a rotating shaft, with an adjustable angle, further enhancing the device's versatility and flexibility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a BIM-based digital building surveying auxiliary device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the shock absorption mechanism described in this invention;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the shock absorption mechanism described in this invention;

[0023] Figure 4 This is a partial structural schematic diagram of the shock absorption mechanism described in this invention;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the buffer section described in this invention;

[0025] Figure 6 This is a schematic diagram of the structure of the second shock absorption mechanism of the present invention;

[0026] Figure 7 This is a schematic diagram of the shock-absorbing structure described in this invention;

[0027] Figure 8 This is a schematic diagram of the structure of the adjustment platform described in this invention;

[0028] In the diagram: 1. Shock-absorbing mechanism; 11. Platform; 12. Buffer section; 121. Buffer rod; 122. Buffer sleeve; 123. Clearance groove; 124. Connecting rod; 13. Shock-absorbing section; 131. Drive frame; 132. Sliding pin; 133. Mounting block; 134. Slide rod; 135. First spring; 136. Connecting platform; 14. Housing; 2. Outer shell; 3. Second shock-absorbing mechanism; 31. Shock-absorbing structure; 311. Support platform; 312. Shock-absorbing rod; 313. Wedge block; 314. Second spring; 32. Adjustment platform; 321. Platform; 322. Stepped slider; 323. Ring frame; 324. Extension plate; 325. Hydraulic device; 4. Base plate; 5. Mounting platform; 6. Visual perception structure; 61. Mounting seat; 62. Camera. Detailed implementation method:

[0029] Combination Figure 1-8 As shown in this embodiment, a BIM-based digital building surveying auxiliary device includes: a shock-absorbing mechanism 1, an installation platform 5, and a visual perception structure 6. The installation platform 5 is equipped with a power supply. The visual perception structure 6 is installed above the shock-absorbing mechanism via the installation platform 5. The visual perception structure 6 is equipped with a data processing center. The shock-absorbing mechanism is installed inside the housing 2. The shock-absorbing mechanism includes a platform. The lower end face of the platform is provided with a buffer part 2 for platform buffering and driving the shock-absorbing part 3. A distance is left between the platform and the shock-absorbing part 3. The shock-absorbing mechanism 1 is installed inside the housing 2. The shock-absorbing mechanism 1 includes a platform 11 for placing parts. The platform 11 is a square plate structure with a boss at its bottom. The boss can be embedded into the housing 14. The lower end face of the platform 11 is provided with a buffer part 12 for platform buffering and driving the shock-absorbing part 13. A distance is left between the platform 11 and the shock-absorbing part 13.

[0030] The buffer section 12 includes multiple buffer rods 121, one end of which is mounted on the lower end face of the platform 11. Each buffer rod 121 is a circular rod-shaped structure, preferably made of stainless steel, cast iron, or iron, which are metals with a certain strength. The other end of each buffer rod 121 is mounted on a buffer sleeve 122, allowing it to slide freely on the sleeve. The outer wall of the buffer rod 121 contacts the inner wall of the buffer sleeve 122. To reduce the frictional resistance between the buffer rod 121 and the buffer sleeve 122, lubricating oil is filled between them. A spring is installed between the end of the buffer rod 121 and the buffer sleeve 122, providing support for the buffer rod 121. When the platform 11 is subjected to external force, the spring resists the pressure and provides cushioning. A connecting rod 124 for driving the shock absorber 13 is mounted on the circumferential wall of the buffer rod 121. The connecting rod 124 connects the buffer rod 121 to the platform 11. The buffer rod connection on one side can prevent uneven force on the platform, which could cause the platform to tilt. The shock absorption part 13 includes a drive frame 131 mounted on the connecting rod 124. The drive frame 131 is provided with a sliding groove. One end of the drive frame 131 is mounted on the housing 14 through a shaft. The drive frame 131 can rotate freely on the housing 14 with the shaft as the center. The sliding groove is long and narrow. A sliding pin 132 is slidably installed on the side of the sliding groove away from the housing 14. A mounting block 133 is installed on one end of the sliding pin 132. A limiting block to prevent the drive frame 131 from falling off is installed on the other end of the sliding pin 132. The lower end face of the mounting block 133 is mounted on the housing 14 through a sliding rod 134. The sliding rod 134 passes through the housing 14 and can slide freely on the housing 14. The end of the sliding rod 134 away from the mounting block 133 is mounted on the housing 14 through a first spring 135. The first spring 135 supports the sliding rod 134.

[0031] Four buffer bars 121 are provided, and the four buffer bars 121 are symmetrically arranged in pairs on the lower end face of the platform 11. The buffer bars on the same side are connected by connecting rods 124. The buffer sleeve 122 is provided with a relief groove 123 for the connecting rod 124 to avoid. The relief groove 123 is elongated and its width is not less than the diameter of the connecting rod 124, so that the connecting rod 124 can pass smoothly through the relief groove 123, thereby increasing the range of motion of the connecting rod 124 and thus increasing the stroke of the platform 11.

[0032] The connecting rod 124 is slidably mounted in a groove on the drive frame 131. A straight line is defined by three points: the connecting rod 124, the shaft of the drive frame 131 mounted on the housing 14, and the sliding pin 132. This straight line coincides with the centerline of the drive frame 131. Since one end of the drive frame 131 is mounted on the housing 14 via the shaft, the drive frame 131 has only one degree of rotational freedom due to the constraint of the shaft. The shaft can be defined as the center. Because the connecting rod 124 and the sliding pin 132 are mounted in different positions on the drive frame 131… Compared to the sliding pin 132, the connecting rod 124 is closer to the center. Therefore, when the connecting rod 124 moves, it will drive the sliding pin 132 to move a greater distance, thereby putting the first spring 135 into operation, reducing the descent distance of the platform 11, and thus reducing the amplitude of the platform 11 caused by external forces. A connecting platform 136 is installed at the end of the sliding rod 134 away from the mounting block 133. The first spring 135 is installed on the sliding rod through the connecting platform 136. The connecting platform 136 facilitates the installation of the first spring 135.

[0033] It also includes a second damping mechanism 3, which is located below the damping mechanism 1. The second damping mechanism 3 includes a damping structure 31, which is installed on the adjustment platform 32.

[0034] The shock-absorbing part 31 includes a support platform 311, which is a plate-shaped structure. Multiple shock-absorbing rods 312 are installed on the side wall of the support platform 311. The shock-absorbing rods 312 are made of materials with a certain hardness, such as iron, stainless steel or alloy. A second spring 314 is installed between adjacent shock-absorbing rods. The second spring 314 is installed at the end of the shock-absorbing rod 312 away from the support platform 311. When the second spring 314 is opened under the force below the shock-absorbing rod 312, it can apply a pulling force to the shock-absorbing rod 312. The pulling force resists the pressure on the support platform 311, thereby achieving the shock-absorbing effect. The support platform 311 is provided with a groove for the connecting platform 136 to cooperate with. A buffer pad is provided in the groove. The buffer pad is preferably made of rubber.

[0035] The end of the shock absorber 312 away from the support 311 is equipped with a wedge 313 for connecting the second spring 314. The adjacent surfaces of the wedge 313 are parallel. The wedge 313 can prevent the second spring 314 from being bent during installation, so that the second spring 314 is in a horizontal movement regardless of stretching or bending, and prevents the second spring 314 from bending and getting tangled together.

[0036] The adjustment platform 32 includes a platform 321, which is a square plate structure. The outer wall of the platform 321 is attached to the inner wall of the outer shell 2 and can slide freely within the outer shell 2. A stepped slide groove is provided on the platform 321, which is arranged perpendicular to the edge of the platform 321. A stepped slider 322 is slidably installed in the stepped slide groove. The shape of the stepped slider 322 is the same as the cross-sectional shape of the stepped slide groove, and the stepped slider 322 can slide freely along the stepped slide groove. A groove for installing the stepped slider 322 is provided in the middle of the wedge block 313. A protrusion is provided at the upper end of the stepped slider 322. The protrusion is mounted on the wedge block 313 through a shaft, and the protrusion and the wedge block 313 can rotate relative to each other.

[0037] A ring frame 323 is provided on the outside of the platform 321. A distance is left between the ring frame 323 and the platform 321, which is not less than the thickness of the outer shell 2. The ring frame 323 and the platform 321 are connected by a connecting block. The ring frame 323 is slidably installed on the outer wall of the outer shell 2. The outer shell 2 is provided with a sliding groove. The connecting block is slidably installed in the sliding groove provided on the outer shell 2. The sliding groove is vertical and long. An extension plate 324 for driving the ring frame 323 is provided on the outer wall of the ring frame 323. A hydraulic device 325 for driving the ring frame 323 is provided on the lower end face of the extension plate 324. The height of the platform 321 can be adjusted by raising and lowering the hydraulic device 325, thereby adjusting the distance between the support platform 311 and the connecting platform 136. The hydraulic device 325 is installed on the upper end face of the base plate 4. The outer shell 2 is installed on the upper end face of the base plate 4. The hydraulic device 325 is located around the outer shell. The base plate 4 is made of magnetic material and is installed on the external support by magnetic adsorption.

[0038] The shock absorption mechanism has a sensing structure inside for measuring the vibration amplitude. The sensing structure is connected to the data processing center. The visual perception structure 6 includes a mounting base 6, on which a camera 62 for capturing external information is mounted via a rotating shaft.

[0039] Working principle: The device is attached to the external support via the base plate 4. When the platform 11 is subjected to external vibration or impact, the force is first transmitted to the buffer part 12. Four symmetrically arranged buffer rods 121 slide and compress the spring 123 within the buffer sleeve 122, converting the vertical impact into elastic potential energy. This prevents the impact from being directly transmitted to the upper mounting platform 5 and the visual perception structure 6. The symmetrical layout of the buffer rods ensures the balance of force on the platform, avoiding platform tilting caused by single-point impact. The connecting rod 124 on the circumferential wall of the buffer rod 121 drives the frame 131 to rotate around the axis as the platform moves. This converts the small displacement of the platform into a large stroke movement of the sliding pin, which pushes the mounting block 133 and the sliding rod 134 to compress the first spring 135. When the impact energy exceeds the damping capacity of the primary damping system, the connecting platform 136 at the end of the sliding rod 134 contacts the support platform 311 of the second damping mechanism 3. The damping rod 312 on the side wall of the support platform drives the wedge block 313 to move, and the movement of the wedge block 313 stretches the second spring 314 between adjacent wedge blocks 313. At the same time, the stepped slider 322 slides in the stepped groove of the platform 321. The hydraulic device 325 drives the ring frame 323 to rise and fall along the groove of the outer shell 2, thereby adjusting the height of the platform 321 and changing the gap between the support platform 311 and the connecting platform 136. The sensing structure inside the damping mechanism monitors the amplitude data in real time, analyzes the vibration mode through the data processing center in the installation platform 5, and precisely controls the hydraulic adjustment.

[0040] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A BIM-based digital building mapping assistance device, comprising: The damping mechanism (1), the mounting platform (5) and the visual perception structure (6) are characterized in that: the mounting platform (5) is provided with a power supply, the visual perception structure (6) is mounted on the damping mechanism (1) through the mounting platform (5), the visual perception structure (6) is provided with a data processing center, the damping mechanism (1) is installed in the shell (2), the damping mechanism (1) comprises a platform (11) for placing parts, the lower end surface of the platform (11) is provided with a buffer part (12) for platform buffering and driving damping part (13), and a distance is left between the platform (11) and the damping part (13).

2. The BIM-based digital building mapping aid of claim 1, wherein: The buffer part (12) comprises a plurality of buffer rods (121) mounted at one end of the lower end surface of the platform (11), the other end of the buffer rod (121) is slidably mounted on the buffer sleeve (122), the spring (123) is mounted between the end of the buffer rod (121) and the buffer sleeve (122), the circumferential wall of the buffer rod (121) is provided with a connecting rod (124) for driving the damping part, the damping part (13) comprises a driving frame (131) mounted on the connecting rod (124), the driving frame (131) is provided with a sliding groove, the sliding groove is long strip-shaped, the sliding pin (132) is slidably mounted in the sliding groove, one end of the sliding pin (132) is provided with a mounting block (133), the lower end surface of the mounting block (133) is mounted on the box body (14) through the slide rod (134), and the end of the slide rod (134) away from the mounting block (133) is mounted on the box body (14) through the first spring (135).

3. The BIM-based digital building mapping aid of claim 2, wherein: The buffer rod (121) is provided with four buffer rods (121) arranged symmetrically at the lower end surface of the platform (11), the buffer rods on the same side are connected through the connecting rod (124), the buffer sleeve (122) is provided with an avoiding groove (123) for avoiding the connecting rod (124), the avoiding groove (123) is long strip-shaped, the connecting rod (124) is slidably mounted in the sliding groove provided on the driving frame (131), the end of the driving frame (131) close to the box body (14) is movably mounted on the box body (14) through the shaft, and the end of the slide rod (134) away from the mounting block (133) is provided with a connecting table (136), and the first spring (135) is mounted on the slide rod through the connecting table (136).

4. The BIM-based digital building mapping aid of claim 2, wherein: The second damping mechanism (3) is arranged below the damping mechanism (1), and the second damping mechanism (3) comprises a damping structure (31) mounted on an adjusting platform (32).

5. The BIM-based digital building mapping aid of claim 4, wherein: The damping structure (31) comprises a supporting table (311), a plurality of damping rods (312) are mounted on the side wall of the supporting table (311), a second spring (314) is mounted between adjacent damping rods (312), the second spring (314) is mounted at the end of the damping rod (312) away from the supporting table (311), a wedge block (313) for connecting the second spring (314) is mounted at the end of the damping rod (312) away from the supporting table (311), and the adjacent surfaces of the wedge block (313) are in parallel.

6. The BIM-based digital building mapping aid of claim 4, wherein: The adjusting platform (32) comprises a platform (321) provided with a stepped sliding groove, and a stepped sliding block (322) is slidingly installed in the stepped sliding groove, and a middle position of a wedge block (313) is provided with a groove for installing the stepped sliding block (322).

7. The BIM-based digital building mapping aid of claim 6, wherein: An outer portion of the platform (321) is provided with an annular frame (323) slidingly installed on an outer wall of the shell (2), and the shell (2) is provided with a sliding groove, the annular frame (323) is connected with the platform (321) through a connecting block slidingly installed in the sliding groove of the shell (2), an outer wall of the annular frame (323) is provided with an extension plate (324), a lower end surface of the extension plate is provided with a hydraulic device (325) for driving the annular frame (323), the hydraulic device (325) is installed on an upper end surface of a bottom plate (4), the bottom plate (4) is made of a magnetic material, the shell (2) is installed on the upper end surface of the bottom plate (4), and the hydraulic device (325) is located around the shell.

8. The BIM-based digital building mapping aid of claim 5, wherein: The supporting table (311) is provided with a groove matched with the connecting table (136), and a buffer pad is arranged in the groove.

9. The BIM-based digital building mapping aid of claim 1, wherein: A sensing structure for measuring vibration amplitude is arranged in the inner cavity of the damping mechanism (1), and the sensing structure is connected with a data processing center.

10. The BIM-based digital building mapping aid of claim 1, wherein: The visual perception structure (6) comprises a mounting seat (61), and a camera (62) for capturing external information is installed on the mounting seat (61) through a rotating shaft.

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