A laser scanning target structure suitable for a variety of ground environments

Abstract

The utility model relates to a kind of laser scanning target structure suitable for various ground environments, base unit includes base, support leg, support arm and ground insertion sharp cone, the lower end of base is connected base connecting rod by base locking bolt, the bottom of base connecting rod is fixedly connected support leg, the side of base is installed support arm connecting frame, support arm connecting frame is installed support arm, support arm end part is vertically connected ground insertion sharp cone.The base of the utility model is set by universal joint and adjustable height base support rod, allow flexible adjustment of the attitude and angle of support rod when using, further optimize the positioning accuracy of modular target, and improve the applicability in different measurement tasks, wide application range;With all-terrain adaptability, it can provide stable support on rigid plane and non-hardened ground surface, for the working condition of bridge deck high wind speed, support leg bottom is provided with stickable rubber pad, significantly enhance the connection reliability of support and bridge deck, effectively improve the anti-overturning stability.

Description

Technical Field

[0001] This utility model belongs to the field of laser scanning measurement technology, specifically relating to a laser scanning target structure suitable for various ground environments. Background Technology

[0002] In point cloud registration, laser-scanning targets, serving as artificially deployed high-precision physical reference points, provide a clear and consistent benchmark for point cloud data from different stations, significantly improving registration accuracy and stability. High-precision point cloud registration is not only fundamental for subsequent feature extraction and spatial analysis, but its registration errors also directly affect the accuracy and reliability of subsequent modeling and measurement work. Therefore, ensuring the stability and repeatability of the target system in the field environment is one of the key issues that urgently needs to be addressed in the point cloud data acquisition process.

[0003] However, existing laser scanning targets still face many problems in practical applications. One of them is the poor adaptability of the target support structure, which makes it difficult to maintain stability under varying ground conditions. Especially in different construction environments such as bridge decks, hard concrete surfaces, or soft soil surfaces, traditional target supports are prone to tilting, sinking, or swaying, which seriously affects the stability of the target position and the quality of point cloud data acquisition. Particularly in open-air environments with significant wind interference, the insufficient wind resistance of the support often becomes a major source of measurement error.

[0004] Therefore, there is an urgent need to provide a laser scanning target support device that is structurally stable, suitable for various ground environments, and has good anti-interference capabilities. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a laser scanning target structure suitable for various ground environments. It can be quickly deployed and firmly fixed on both hard and soft ground, ensuring that the target still has good stability under complex working conditions, thereby providing reliable support for the accurate registration of point cloud data.

[0006] The technical problem solved by this utility model is achieved through the following technical solution: A laser scanning target structure suitable for various ground environments includes a modular target, a first support rod, a connector, a movable block, and a second support rod. The lower end of the modular target is connected to the first support rod. The connector is fitted into the middle of the first support rod. A connecting rod is vertically mounted on the connector. Two second support rods are connected to the connecting rod via the movable block. The bottom ends of the support rod and the two second support rods are connected to a base unit via universal joints. The base unit includes a base, legs, a support arm, and a ground-inserting cone. The lower end of the base is connected to a base connecting rod via a base locking bolt. The bottom end of the base connecting rod is fixedly connected to the legs. A support arm connecting frame is mounted on the side of the base. The support arm is mounted on the support arm connecting frame, and the end of the support arm is vertically connected to the ground-inserting cone.

[0007] Furthermore, rubber pads are attached to the bottom surface of the support legs.

[0008] Moreover, the base is triangular in shape, and ground-inserting cones are installed on three sides of the base through the support arm connecting frame, forming a stable triangular structure.

[0009] Furthermore, the base connecting rod is a telescopic rod.

[0010] Furthermore, the top of the base has a spherical protrusion that connects to the bottom of the support rod.

[0011] Furthermore, the modular target includes a magnetic disk, a magnetically attached reflector, and a positioning plate. The positioning plate is embedded at the center of the magnetic disk, and a fan-shaped magnetically attached reflector with different reflective layers is embedded in the magnetic disk along the positioning plate. The two ends of the magnetic disk are rotatably installed in a U-shaped target base, and the U-shaped target base is connected to the support rod through a U-shaped target base connector.

[0012] The advantages and beneficial effects of this utility model are as follows: 1. The base of this utility model is set with a universal joint and an adjustable height base support rod, which allows for flexible adjustment of the posture and angle of the support rod during use, further optimizing the positioning accuracy of the modular target and improving its applicability in different measurement tasks, thus having a wide range of applications.

[0013] 2. The base of this utility model has all-terrain adaptability and can provide stable support on both rigid planes (such as concrete bridge decks) and unhardened ground surfaces. For high wind speed conditions on bridge decks, the bottom of the support leg is equipped with adhesive pads, which significantly enhances the connection reliability between the support and the bridge deck and effectively improves the anti-overturning stability.

[0014] 3. The ground-inserting cone of this utility model is a foldable ground-inserting cone. When working on unhardened ground, the unfolded cone can penetrate the soil and work together with the support legs to form a triangular stable structure, providing enhanced and stable support for the target. When working on a rigid plane, the cone can be stored and folded, greatly improving portability and ease of operation.

[0015] 4. The reflector in the modular target of this utility model adopts a magnetic modular design, which can be easily disassembled and replaced according to actual needs, thereby improving the ease of operation in actual measurement work, especially under changing field conditions, and greatly saving installation and adjustment time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 The main view; Figure 3 This is an explosion diagram of the modular target of this utility model; Figure 4 This is an exploded view of the base of this utility model.

[0017] Explanation of reference numerals in the attached figures 1-Magnetic disk, 2-Magnetic reflector, 3-Positioning plate, 4-Rotating shaft, 41-Rotating shaft insertion hole, 5-U-shaped target base, 6-U-shaped target base connector, 61-U-shaped target base limiting groove, 7-Connecting rod, 8-Locking bolt, 9-Level bubble, 10-First support rod, 11-Connector, 12-Connecting rod, 13-Modular block, 14-Second support rod, 15-Universal joint, 16-Base, 161-Spherical protrusion, 162-Base connecting rod, 17-Base locking bolt, 18-Support arm connecting frame, 181-Support arm locking bolt, 19-Foot, 20-Rubber pad, 21-Support arm, 211-Ground-inserting cone locking bolt, 22-Ground-inserting cone. Detailed Implementation

[0018] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not limiting, and should not be used to limit the protection scope of the present invention.

[0019] An innovative laser scanning target structure suitable for various ground environments includes: a modular target, a first support rod 10, a connector 11, a movable block 13, and a second support rod 14. The lower end of the modular target is connected to the first support rod. The connector is fitted into the middle of the first support rod. A connecting rod 12 is vertically mounted on the connector. Two second support rods are connected to the connecting rod via the movable block. The bottom ends of the support rod and the two second support rods are connected to a base unit via a universal joint 15. The base unit includes a base 16, legs, and... The base includes a support arm and a ground-inserting cone. The base connecting rod is a telescopic rod. The top of the base has a spherical protrusion 161 that connects to the bottom of the support rod, facilitating quick installation and connection between the base and the first support rod. The lower end of the base is connected to the base connecting rod 162 via a base locking bolt 17. The bottom end of the base connecting rod is fixedly connected to the support leg 19. A support arm connecting frame 18 is installed on the side of the base. The support arm 21 is installed on the support arm connecting frame via a support arm locking bolt 181. The end of the support arm is vertically connected to the ground-inserting cone via a ground-inserting cone locking bolt 211.

[0020] The base of this utility model is set with a universal joint and an adjustable height base support rod, which allows for flexible adjustment of the posture and angle of the support rod during use, further optimizing the positioning accuracy of the modular target and improving its applicability in different measurement tasks, making it widely applicable.

[0021] The bottom surface of the support leg is covered with adhesive pads 20. The base of this utility model has all-terrain adaptability and can provide stable support on both rigid planes (such as concrete bridge decks) and unhardened ground surfaces. For high wind speed conditions on bridge decks, the bottom of the support leg is equipped with adhesive pads, which significantly enhances the connection reliability between the support and the bridge deck and effectively improves the anti-overturning stability.

[0022] The base is triangular in shape, and ground-inserting cones are installed on three sides of the base via the support arm connecting frame. The three ground-inserting cones form a stable triangular structure. The ground-inserting cones are foldable. When working on unhardened surfaces, the unfolded cones can penetrate the soil and work together with the support legs to form a stable triangular structure, providing enhanced and stable support for the target. When working on rigid planes, the cones can be folded and stored, greatly improving portability and ease of operation.

[0023] The modular target includes a magnetic disk 1, a magnetic reflector 2, and a positioning plate 3. The positioning plate is embedded at the center of the magnetic disk. A fan-shaped magnetic reflector with different reflective layers is embedded in the magnetic disk along the positioning plate. The two ends of the magnetic disk are rotatably mounted in the rotating shaft 4 inside the U-shaped target base 5. The rotating shaft 4 is inserted into the rotating shaft insertion hole 41 of the U-shaped target base. The U-shaped target base is connected to the first support rod through the U-shaped target base connector 6. The reflector in the modular target adopts a magnetic modular design, which can be easily disassembled and replaced according to actual needs, thereby improving the ease of operation in actual measurement operations, especially under changing field conditions, and greatly saving installation and adjustment time.

[0024] The top of the first support rod 10 is connected to the U-shaped target base 5 via a connecting rod 7. The top of the first support rod 10 is provided with a locking bolt 8. By rotating the locking bolt 8, the extension position of the connecting rod 7 is locked to control the target height. A level bubble 9 is fixed to the tube wall of the first support rod 10. By rotating the locking bolt, the extension position of the connecting rod (adjustment range 0.5-1.8m) can be infinitely adjusted, and the level bubble integrated in the tube wall can be used to complete the horizontal centering of the target. The horizontal connector supports splicing multiple support rods to improve the stability of the target when placed in complex environments.

[0025] This utility model adopts a dual-mode base design to achieve all-terrain adaptive and highly stable support. When operating on unhardened surfaces, the ground-inserting cone extends and penetrates the soil, forming a "three-point anchoring + surface support" composite structure with the outriggers, greatly improving the support's anti-overturning ability. Under high-wind-speed rigid plane conditions such as bridge decks, the cone is retracted and the adhesive pads at the bottom of the outriggers are activated, enhancing the bridge deck adhesion through adhesive force. The linkage mechanism of the support arm locking bolts enables rapid mode switching, and after folding the cone, the support arm automatically retracts and attaches to the base connecting rod.

[0026] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A laser scanning target structure suitable for various ground environments, comprising a modular target, a first support rod (10), a connector (11), a movable block (13), and a second support rod (14), wherein the lower end of the modular target is connected to the first support rod (10), the connector (11) is fitted onto the middle of the first support rod (10), a connecting rod (12) is vertically mounted on the connector (11), and two second support rods (14) are respectively connected to the connecting rod (12) through the movable block (13), characterized in that: The bottom ends of the support rod (10) and the two second support rods (14) are connected to a base unit via a universal joint (15). The base unit includes a base (16), a leg (19), a support arm (21), and a ground-inserting cone (22). The lower end of the base (16) is connected to a base connecting rod (162) via a base locking bolt (17). The bottom end of the base connecting rod (162) is fixedly connected to the leg (19). A support arm connecting frame (18) is installed on the side of the base (16). The support arm (21) is installed on the support arm connecting frame (18). The end of the support arm (21) is vertically connected to the ground-inserting cone (22).

2. The laser scanning target structure suitable for various ground environments according to claim 1, characterized in that: A rubber pad (20) is attached to the bottom surface of the support leg (19).

3. The laser scanning target structure suitable for various ground environments according to claim 1, characterized in that: The base (16) is triangular in shape, and ground-inserting cones (22) are installed on the three sides of the base (16) through the support arm connecting frame (18). The three ground-inserting cones (22) form a stable triangular structure.

4. The laser scanning target structure suitable for various ground environments according to claim 1, characterized in that: The base connecting rod (162) is a telescopic rod.

5. The laser scanning target structure suitable for various ground environments according to claim 1, characterized in that: The top of the base (16) has a spherical protrusion (161) that is connected to the bottom of the support rod (10).

6. The laser scanning target structure suitable for various ground environments according to claim 1, characterized in that: The modular target includes a magnet disk (1), a magnetic reflector (2) and a positioning plate (3). The positioning plate (3) is embedded at the center of the magnet disk (1). A fan-shaped magnetic reflector (2) with different reflective layers is embedded in the magnet disk (1) along the positioning plate (3). The two ends of the magnet disk (1) are rotatably installed in a U-shaped target base (5). The U-shaped target base (5) is connected to the support rod (10) through a U-shaped target base connector (6).

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