Automatic three-dimensional laser scanner for topographic mapping of water and sediment physical model

Abstract

The utility model discloses an automatic three-dimensional laser scanner for topographic surveying and mapping of a water and sediment physical model, which comprises a support rod, a balance structure and a laser scanning device, the support rod is provided with a support table and a three-dimensional laser scanner, the balance structure comprises a storage plate arranged on the support rod, and the storage plate is arranged on the support rod. And a folding support plate for supporting the support rod is arranged in the storage plate. According to the automatic three-dimensional laser scanner for topographic surveying and mapping of the water-sediment physical model, the balance structure comprising the folding support plate is arranged on the support rod, so that the folding support plate can be unfolded according to complex terrains such as soft and easy-to-settle beaches of estuaries and coasts, and the support area is increased to disperse the pressure of the support rod on a foundation; the problems of collapse and inclination of a traditional supporting rod caused by terrains are effectively solved, stable installation of the three-dimensional laser scanner is ensured, and the operation efficiency is improved. And the magnet on the connecting plate is matched with the surrounding type balance structure.

Description

Technical Field

[0001] This utility model relates to the field of three-dimensional laser scanner technology, specifically an automated three-dimensional laser scanner for topographic mapping of water and sand physical models. Background Technology

[0002] The application of automated 3D laser scanners is crucial for topographic data acquisition. However, existing automated 3D laser scanners face significant terrain challenges when installed in simulated terrain during experiments. The simulated estuarine and coastal terrain exhibits factors such as siltation, soft intertidal zones, periodic water level changes, and tidal impacts, resulting in poor foundation stability. Traditional support rod designs fail to adequately consider the complexity and dynamics of estuarine and coastal terrain. In soft, easily subsiding mudflats or areas affected by seawater erosion, the support rods are prone to foundation collapse and tilting, leading to scanner misalignment, affecting the accuracy and reliability of survey data, and potentially causing equipment damage. This severely restricts the efficient and accurate conduct of estuarine and coastal topographic surveying. Utility Model Content

[0003] The purpose of this invention is to provide an automated three-dimensional laser scanner for topographic mapping of water and sediment physical models, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automated three-dimensional laser scanner for topographic mapping of water and sediment physical models, comprising a support rod, on which a support platform and a three-dimensional laser scanner are mounted, characterized in that it includes:

[0005] A balancing structure, the balancing structure including a storage plate disposed on the support rod, the storage plate having a folding support plate for supporting the support rod.

[0006] Preferably, the support rod has a first storage groove for accommodating the balancing structure, and a connecting shaft is provided at the connection between the first storage groove and the balancing structure.

[0007] Preferably, the storage plate has a second storage slot for accommodating the folding support plate.

[0008] Preferably, a connecting plate is provided on one side of the folding support plate, and a magnet is provided on the connecting plate.

[0009] Preferably, the number of the balancing structures is at least two, and they are arranged in a ring around the support rod.

[0010] Preferably, adjacent magnets on all the connecting plates are arranged in opposite directions.

[0011] Preferably, a scraper is provided on one side of the storage board, which is used to smooth the installation environment.

[0012] Preferably, one end of the storage plate is provided with a connector, which is used to connect with the connecting shaft in the first storage slot.

[0013] Preferably, the support rod is also provided with a drill bit, which is used to perform preliminary setting of the support rod.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: This automated 3D laser scanner for topographic mapping of water and sediment physical models, by setting a balancing structure including a folding support plate on the support rod, can unfold the folding support plate according to complex terrains such as soft and easily subsided tidal flats in estuaries and coastlines, increasing the support area to distribute the pressure of the support rod on the foundation, effectively solving the problem of collapse and tilting of traditional support rods caused by terrain, and ensuring the stable installation of the 3D laser scanner; the setting of the first storage slot and the connecting shaft allows the balancing structure to be folded and stored, facilitating equipment transportation and on-site adjustment, and adapting to dynamically changing terrain environments such as the intertidal zone; the second storage slot's design for accommodating the folding support plate ensures both a compact structure and a folded support plate. It facilitates rapid deployment and improves operational efficiency; the magnets on the connecting plate work in conjunction with the surrounding balance structure, and the magnets arranged in opposite directions enhance the connection stability of adjacent support plates, forming a ring-shaped support force system to resist external forces such as tidal impact and prevent equipment displacement; the scraper can pre-smooth the soft mud and sand in the installation environment, optimize the flatness of the foundation, and reduce the risk of local settlement; the drill bit facilitates the initial driving of the support rod into the foundation, and the mechanical fixation enhances the initial stability. The synergistic effect of multiple structures significantly improves the installation stability of the automated 3D laser scanner in the complex terrain of estuaries and coastlines, ensures the accuracy of survey data and the safety of equipment, and effectively solves the problem of support failure caused by terrain in existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the storage state of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model in use;

[0017] Figure 3 This is a schematic diagram of the balance structure of this utility model.

[0018] In the diagram: 1. Support rod; 11. First storage slot; 12. Drill bit; 2. Balancing structure; 21. Storage plate; 22. Second storage slot; 23. Folding support plate; 24. Connecting plate; 25. Connector; 26. Scraper; 3. Support platform; 4. 3D laser scanner. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-3 This utility model provides a technical solution: an automated three-dimensional laser scanner for topographic mapping of water and sand physical models, including a support rod 1, which supports the device. The support rod 1 is equipped with a support platform 3 and a three-dimensional laser scanner 4. The support platform 3 supports the three-dimensional laser scanner 4 and is equipped with a rotating shaft for convenient rotation and angle adjustment of the three-dimensional laser scanner 4. The three-dimensional laser scanner 4 is used for topographic mapping of estuaries and coastlines. The support rod 1 is also equipped with a drill bit 12, which is used to insert the support rod 1 into the ground for initial connection and initial setup of the support rod 1.

[0021] The balancing structure 2 includes a storage plate 21 mounted on the support rod 1. Normally, the storage plate 21 is stored in a first storage slot 11 within the support rod 1. The storage plate 21 contains a folding support plate 23 for supporting the support rod 1. The folding support plate 23 can be folded and unfolded. One side of the folding support plate 23 is connected to the inner side of the storage plate 21, and the other side is connected to a connecting plate 24. A second storage slot 22 is provided on the storage plate 21 to store the folded support plate 23. A connecting plate 24 is provided on one side of the folding support plate 23, and the connecting plate 24 is used to magnetically connect adjacent folding support plates 23. The connecting plate 24 contains magnets.

[0022] During installation, the drill bit 12 at the bottom of the support rod 1 is first drilled clockwise into the mudflats of the sand model for 30-50cm, using the spiral cutting edge to form an initial mechanical anchor point. Simultaneously, the scraper 26 on the outer side of the storage plate 21 rotates to a horizontal position with the balancing structure 2, using its cutting edge lower than the folding support plate 23 to repeatedly push and pull, smoothing the mud surface around the drill bit 12 and eliminating local unevenness in the sand model. Next, the balancing structure 2 is rotated and unfolded from the first storage slot 11 to be perpendicular to the support rod via the connecting shaft, pushing the folding support plate 23 out of the second storage slot 22 and unfolding it into an L-shape. The three sets of balancing structures 2 are evenly distributed radially along the circumference. The neodymium iron boron magnets on adjacent connecting plates 24, arranged in opposite directions, automatically attract each other, causing the folding support plate 23 to unfold into an L-shape. The stacked support plates 23 are connected to form a ring-shaped support base with a diameter of 1.2 to 1.5 m, increasing the support area by more than 3 times. Combined with the deep anchoring of the drill bit 12 and the base surface treatment of the scraper 26, a three-dimensional support system of "point-line-surface" is formed. During operation, if a support plate on one side settles due to silt loss, the adjacent support plates are linked by magnets to adjust the angle synchronously to maintain horizontal balance. When stored, the balance structure 2 is folded into the first storage slot 11. The equipment is cylindrical to reduce transportation resistance. The aluminum alloy or stainless steel material that is resistant to seawater corrosion and the waterproof rubber ring design ensure long-term stable operation in the intertidal environment of the water and sand model during the experiment. The rotating shaft of the support platform 3 can drive the three-dimensional laser scanner 4 to rotate 360 ​​degrees to collect terrain data.

[0023] The number of balancing structures 2 is at least two, specifically four, and they are arranged in a ring around the support rod 1. The adjacent magnets on all the connecting plates 24 are arranged in opposite directions. In use, the four storage plates 21 rotate and open horizontally on the support rod 1. Then, the folding support plate 23 on each storage plate 21 unfolds and is connected to each other through the connecting plate 24. When the folding support plate 23 contacts the ground, it can support the support rod 1 and prevent the support rod 1 from sinking or tilting after being inserted into the ground due to the characteristics of the estuary coast terrain.

[0024] The support rod 1 has a first storage slot 11, which is used to store the balancing structure 2. In normal state, the balancing structure 2 is retracted into the support rod 1, reducing the floor space and making it convenient for storage and transportation. The first storage slot 11 is used to accommodate the balancing structure 2. A connecting shaft is provided at the connection between the first storage slot 11 and the balancing structure 2. One end of the storage plate 21 is provided with a connector 25, which is used to connect with the connecting shaft in the first storage slot 11. The connecting shaft is used to connect the balancing structure 2 in conjunction with the connector 25.

[0025] A scraper 26 is provided on one side of the storage plate 21. The scraper 26 is used to smooth the ground where it is installed to prevent the folding support plate 23 from not being able to be in a horizontal state due to the uneven ground of the water and sand model after the folding support plate 23 is opened. The scraper 26 is used to smooth the installation environment of the water and sand model.

[0026] When using an automated 3D laser scanner for topographic mapping of water and sand physical models, the drill bit 12 at the bottom of the support rod 1 is first rotated clockwise to drill into the mudflats of the water and sand model during the experiment, 30-50 cm deep. The spiral cutting edge forms an initial mechanical anchor point, simultaneously driving the scraper 26 on the outer side of the receiving plate 21 to rotate with the balancing structure 2 around the connecting shaft to a horizontal position. The scraper then pushes and pulls back and forth with the cutting edge lower than the folding support plate 23 to flatten the mud surface around the drill bit 12, eliminating local unevenness and forming a uniform stress-bearing base surface. Subsequently, the four balancing structures 2, arranged in a ring, are rotated and unfolded horizontally from the first receiving groove 11 via the connecting shaft. The folding support plates 23 on each receiving plate 21 slide out from the second receiving groove 22 and unfold. The neodymium iron boron magnets on their connecting plates 24 automatically attract the folding support plates 23, causing the four folding support plates 23 to radiate outwards at 90° around the support rod 1 and connect to form a diameter of 1.2-1 cm. The 0.5m ring support base increases the single-point support area by more than 4 times compared to traditional structures. When the bottom surface of the folded support plate 23 contacts the flat mud surface treated by the scraper 26, it works in conjunction with the deep anchoring of the drill bit 12 to form a composite stability system of "mechanical anchoring point + plane support matrix", effectively resisting the subsidence and tidal impact of the soft terrain of the estuary coast. If the support plate on one side tilts due to sediment loss during operation, the adjacent support plates are leveled by the opposite attraction force of the magnets to maintain the overall horizontal balance. In the non-operational state, the balance structure 2 folds along the connecting shaft and is stored in the first storage slot 11. The connector 25 of the storage plate 21 cooperates with the connecting shaft to achieve compact storage. The equipment is a smooth column to reduce transportation resistance. The seawater corrosion-resistant material and waterproof design ensure long-term stable operation in the high humidity and salt spray environment of the intertidal zone. The rotating shaft of the support platform 3 can drive the 3D laser scanner 4 to rotate to complete the terrain data acquisition.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated three-dimensional laser scanner for topographic mapping of water and sand physical models, comprising a support rod (1), wherein a support platform (3) and a three-dimensional laser scanner (4) are provided on the support rod (1), characterized in that, include: The balancing structure (2) includes a storage plate (21) disposed on the support rod (1), and the storage plate (21) is provided with a folding support plate (23) for supporting the support rod (1).

2. The automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 1, characterized in that: The support rod (1) is provided with a first storage groove (11), which is used to accommodate the balance structure (2). A connecting shaft is provided at the connection between the first storage groove (11) and the balance structure (2).

3. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 1 or 2, characterized in that: The storage plate (21) is provided with a second storage groove (22), which is used to accommodate the folding support plate (23).

4. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 3, characterized in that: A connecting plate (24) is provided on one side of the folding support plate (23), and a magnet is provided on the connecting plate (24).

5. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 4, characterized in that: The number of the balancing structures (2) is at least two, and they are arranged in a ring around the support rod (1).

6. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 5, characterized in that: All adjacent magnets on the connecting plate (24) are arranged in opposite directions.

7. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 1, characterized in that: The storage plate (21) has a scraper (26) on one side, which is used to smooth the installation environment.

8. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 2, characterized in that: One end of the storage plate (21) is provided with a connector (25), which is used to connect with the connecting shaft in the first storage slot (11).

9. An automated three-dimensional laser scanner for topographic mapping of water and sediment physical models according to claim 1, characterized in that: The support rod (1) is also provided with a drill bit (12), which is used to perform preliminary setting on the support rod (1).

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