Three-dimensional laser scanning target with self-cleaning function

Abstract

The utility model discloses a three-dimensional laser scanning target with a self-cleaning function, which is characterized in that a motor is arranged on a support, a target body is connected with an output shaft of the motor, a connecting pipe is arranged on the support through an automatic telescopic piece, the automatic telescopic piece drives the connecting pipe to move along the height direction, and a cleaning brush is arranged on the connecting pipe. When the automatic telescopic piece drives the cleaning brush to move to a preset height, bristles of the cleaning brush make contact with the target body, air holes are formed in the side, where the bristles are located, of the cleaning brush, an air channel for communicating the air holes with a pipe cavity of the connecting pipe is formed in the cleaning brush, the air source assembly is installed on the support, the air source assembly introduces air into the connecting pipe, and the controller is installed on the support. The controller is in control connection with the automatic telescopic piece, the motor and the air source assembly. Through a comprehensive cleaning mode of combining brush target surface sweeping with air target surface sweeping, dust attached to the target surface of the target body is rapidly cleaned, and it is guaranteed that a laser scanner can accurately recognize the position of the device in the laser scanning process.

Description

Technical Field

[0001] This utility model relates to the field of laser scanning technology, and in particular to a three-dimensional laser scanning target with self-cleaning function. Background Technology

[0002] 3D laser scanning technology is an advanced stereoscopic scanning technique that obtains detailed 3D point cloud data of ground targets in a non-contact manner. In 3D laser scanning, the target serves as a control point in coordinate transformation and a connection point in point cloud stitching, enabling the transformation of local point cloud coordinates to geodetic coordinates and the precise stitching of multiple point cloud segments.

[0003] Targets are usually placed outdoors for use. After prolonged use, dust tends to accumulate on the target surface, which may cause the laser scanner to fail to accurately identify the target's location during laser scanning. Utility Model Content

[0004] To address the aforementioned issues, this application provides a three-dimensional laser scanning target with a self-cleaning function.

[0005] This application provides a three-dimensional laser scanning target with self-cleaning function, including a support, a motor, a target body, an automatic telescopic component, a connecting pipe, a cleaning brush, an air source assembly, and a controller. The motor is mounted on the support, and the target body is connected to the output shaft of the motor. The automatic telescopic component is mounted on the support, and the connecting pipe is connected to the automatic telescopic component. The automatic telescopic component is used to drive the connecting pipe to move along the height direction. The cleaning brush is vertically distributed and its bottom is mounted on the connecting pipe. When the automatic telescopic component drives the cleaning brush to move to a preset height, the bristles of the cleaning brush contact the target body. An air hole is opened on one side of the cleaning brush bristles. An air passage is provided inside the cleaning brush to guide the air hole and the cavity of the connecting pipe. The air source assembly is mounted on the support and is connected to the connecting pipe to introduce air. The controller is mounted on the support and is controlled by the automatic telescopic component, the motor, and the air source assembly.

[0006] In some embodiments, the air source assembly includes a fixed frame, an impeller, and an air pipe. The fixed frame is mounted on a support and has an inner cavity. The fixed frame has an air inlet that communicates with the inner cavity. The impeller is rotatably mounted in the inner cavity. One end of the air pipe is connected to the fixed frame and communicates with the inner cavity, and the other end of the air pipe communicates with the cavity of the connecting pipe. When the impeller rotates, it can transport air from the air inlet along the air pipe to the connecting pipe.

[0007] In some implementations, the air supply assembly includes a filter installed at the air inlet.

[0008] In some embodiments, the impeller is mounted on a rotating shaft, which is rotatably mounted on a fixed frame, and the rotating shaft is equipped with a first sprocket;

[0009] The motor is located inside the cavity. The motor is a dual-axis motor. The first output shaft of the dual-axis motor is connected to the target body. The second output shaft of the dual-axis motor is equipped with a second sprocket. The second sprocket is connected to the first sprocket through chain drive.

[0010] In some embodiments, a first output shaft is connected to a fixed sleeve, a target body is connected to a fixed seat on the back side, the fixed seat passes through the fixed sleeve, and the fixed seat and the fixed sleeve are connected by bolts.

[0011] In some implementations, the automatic telescopic component is an electric push rod, which is arranged vertically and is higher than the connecting pipe.

[0012] In some embodiments, a control switch is installed on the top side of the connecting pipe. The control switch is signal-connected to the controller. When the automatic telescopic component moves the connecting pipe until the control switch is touched, the controller controls the motor to run.

[0013] In some embodiments, the three-dimensional laser scanning target with self-cleaning function is also equipped with a receiver, which is mounted on a support and signal-connected to the controller. The receiver is used to receive external signals that indicate the start of cleaning the target body.

[0014] In some implementations, the cleaning brush is detachably connected to the connecting tube.

[0015] In some embodiments, the cleaning brush is movably inserted into the connecting tube, the cleaning brush has a slot, the connecting tube is provided with a threaded shaft, and the threaded shaft is threadedly connected to the connecting tube. The threaded shaft is connected to a locking block, which is slidably installed in the cavity of the connecting tube and allows the locking block to slide into the slot.

[0016] The beneficial effects of this application are as follows: It provides a three-dimensional laser scanning target with self-cleaning function, including a support, a motor, a target body, an automatic telescopic component, a connecting pipe, a cleaning brush, an air source assembly, and a controller. The support mainly serves a supporting function. The target body is mounted on the support via the motor, and the connecting pipe is mounted on the support via the automatic telescopic component. Under the telescopic action of the automatic telescopic component, the connecting pipe moves along the height direction, thereby causing the cleaning brush mounted on the connecting pipe to move along the height direction. When the cleaning brush moves to a preset height, the bristles of the cleaning brush contact the target body. During the cleaning process, the motor drives the target body to move along the height direction. The target body rotates, allowing the bristles to sweep the entire target surface. Air is supplied to the connecting pipe through the air source component installed on the support. The air flows along the air channels inside the cleaning brush and through the air holes of the cleaning brush to the target surface. The controller controls the working status of the automatic telescopic component, motor, and air source component. By combining the brush sweeping of the target surface with the air blowing of the target surface, the dust attached to the target surface is quickly removed, ensuring that the laser scanner can accurately identify the position of the device during the laser scanning process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0018] Figure 1 A schematic diagram of a three-dimensional laser scanning target with self-cleaning function is provided for this application;

[0019] Figure 2 A cross-sectional schematic diagram of a three-dimensional laser scanning target with self-cleaning function provided for this application;

[0020] Figure 3 This is a schematic diagram showing the relative position of the rotating shaft and the filter screen of a three-dimensional laser scanning target with self-cleaning function provided in this application.

[0021] Attached diagram labels: 1-Support, 2-Controller, 3-Receiver, 4-Automatic telescopic component, 5-Connecting pipe, 6-Cleaning brush, 61-Air hole, 7-Fixed frame, 8-Motor, 9-Target body, 10-Fixed sleeve, 11-Fixed seat, 12-Bolt, 13-Shaft, 14-Impeller, 15-Air pipe, 16-Filter screen, 17-Second sprocket, 18-Chain, 19-First sprocket, 20-Threaded shaft, 21-Clamping block, 22-Control switch. Detailed Implementation

[0022] This application provides a three-dimensional laser scanning target with self-cleaning function, including a support, a motor, a target body, an automatic telescopic component, a connecting pipe, a cleaning brush, an air source assembly, and a controller.

[0023] Please refer to the reference. Figure 1 and Figure 2The motor 8, automatic telescopic component 4, air source assembly, and controller 2 are all mounted on the support 1. The support 1 primarily serves a supporting function. The target body 9 is mounted on the support 1 via the motor 8, and is specifically connected to the output shaft of the motor 8. When the motor 8 operates, the output shaft of the motor 8 drives the target body 9 to rotate. The connecting pipe 5 is connected to the automatic telescopic component 4 and is mounted on the support 1 via the automatic telescopic component 4. The automatic telescopic component 4 drives the connecting pipe 5 to move along the height direction. Under the telescopic action of the automatic telescopic component 4, the connecting pipe 5 moves along the height direction. The bottom of the cleaning brush 6 is mounted on the connecting pipe 5, and the cleaning brush 6 is vertically distributed, thus causing the cleaning brush 6 mounted on the connecting pipe 5 to move along the height direction. When the automatic telescopic component 4 drives the cleaning brush 6 to move to a preset height, the bristles of the cleaning brush 6 contact the target body 9. During the cleaning process, the motor 8 causes the target body 9 to rotate, allowing the bristles to sweep the entire target surface area of ​​the target body 9.

[0024] An air hole 61 is provided on one side of the bristles of the cleaning brush 6. The cleaning brush 6 has an air passage that connects the air hole 61 to the cavity of the connecting pipe 5. The air source component is connected to the connecting pipe 5. Air is introduced into the connecting pipe 5 through the air source component installed on the support 1. The air will flow along the air passage in the cleaning brush 6 and through the air hole 61 to the target surface of the target body 9.

[0025] The controller 2 is connected to the automatic telescopic component 4, the motor 8, and the air source component. The controller 2 controls the working status of the automatic telescopic component 4, the motor 8, and the air source component. When the automatic telescopic component 4 drives the cleaning brush 6 to move to the preset height, the motor 8 starts to run automatically, and the air source component starts to introduce air into the connecting pipe 5. This realizes a comprehensive cleaning method that combines brush sweeping of the target surface with air blowing of the target surface, which quickly cleans the dust attached to the target body 9 and ensures that the laser scanner can accurately identify the position of the device during the laser scanning process.

[0026] In some implementation methods, please refer to Figure 1 and Figure 2 The self-cleaning 3D laser scanning target also includes a receiver 3, which is mounted on the support 1 and connected to the controller 2. The receiver 3 receives external signals to initiate the cleaning of the target body 9. During laser scanning, the 3D laser scanning system can identify targets that have been left outdoors for a long time without cleaning. By sending cleaning-related signals to the receiver 3, the receiver 3 sends the signals to the controller 2. The controller 2 controls the automatic telescopic component 4, the motor 8, and the air source assembly to perform a comprehensive cleaning method that combines brushing and air blowing on the target surface.

[0027] In some implementation methods, please refer to Figure 2 The air source assembly includes a fixed frame 7, an impeller 14, and an air pipe 15. The fixed frame 7 is mounted on a support 1 and has an inner cavity. The fixed frame 7 has an air inlet communicating with the inner cavity. The impeller 14 is rotatably mounted in the inner cavity. One end of the air pipe 15 is connected to the fixed frame 7 and communicates with the inner cavity, while the other end of the air pipe 15 communicates with the cavity of the connecting pipe 5. The impeller 14 is equipped with a drive component for driving. The working state of the drive component is controlled by a controller 2, thereby realizing the control connection between the controller 2 and the air source assembly. When the impeller 14 rotates, the blades push the airflow, which allows the air to be delivered from the air inlet along the air pipe 15 to the connecting pipe 5. The air then passes through the air passage in the connecting pipe 5 and is ejected from the air hole 61 of the cleaning brush 6 to blow and sweep the target surface of the target body 9. The combination of the brush bristles and the sweeping of the target surface achieves thorough cleaning of the target body 9.

[0028] In some implementation methods, please refer to Figure 2 A filter screen 16 is installed at the air inlet of the fixed frame 7. The filter screen 16 blocks dust and other impurities in the air, especially dust and other impurities caused by the brush bristles sweeping the target surface.

[0029] In some embodiments, the drive unit that drives the impeller 14 to rotate and the motor 8 that drives the target body 9 to rotate are combined into one. This reduces the number of drive units, improves the overall compactness, and allows for joint control of the rotation of the target body 9 and the impeller 14 by controlling the motor 8, effectively reducing the control complexity of the controller 2. For details, please refer to... Figure 2 Impeller 14 is mounted on shaft 13, which is rotatably mounted on fixed frame 7. First sprocket 19 is mounted on shaft 13. Motor 8 is located within the inner cavity. Motor 8 is a dual-shaft motor. The first output shaft of dual-shaft motor 8 is connected to target body 9, and the second output shaft of dual-shaft motor 8 is mounted on second sprocket 17. Second sprocket 17 and first sprocket 19 are connected via chain 18. When motor 8 operates, it drives target body 9 to rotate via the first output shaft. Under the action of the transmission structure of second output shaft, second sprocket 17, chain 18, first sprocket 19, and shaft 13, impeller 14 rotates, causing air to rush into the air passage of cleaning brush 6 and be ejected from air hole 61.

[0030] It should be noted that the above-mentioned embodiment in which the motor 8 is installed in the inner cavity of the fixed frame 7 and the fixed frame 7 is installed on the support 1 is one embodiment in which the motor 8 is installed on the support 1.

[0031] Generally, a solution that directly mounts the rotating shaft 13 onto structural components with insufficient strength, such as the filter screen 16, would not be adopted. Please refer to the comparison. Figure 2 and Figure 3 The relative position of the filter 16 and the rotating shaft 13 can be adjusted, for example, by setting the air inlet of the mounting bracket 7 to... Figure 3 The shape of the filter screen 16 allows the rotating shaft 13 to be directly rotatably mounted on the main body structure of the fixed frame 7, and the filter screen 16 structure is separated from the rotating shaft 13 structure.

[0032] In some embodiments, for ease of connection between the motor 8 and the target body 9, please refer to... Figure 2 The first output shaft is connected to a fixing sleeve 10, and the target body 9 is connected to a fixing seat 11 on the back side. The fixing seat 11 passes through the fixing sleeve 10, and the fixing seat 11 and the fixing sleeve 10 are connected by bolts 12. The connection between the motor 8 and the target body 9 is realized by the assembly of fixing seat 11, fixing sleeve 10 and bolts 12, which has the advantage of convenient assembly and disassembly.

[0033] In some implementations, the automatic telescopic component 4 is an electric actuator. Electric actuators have advantages such as convenient procurement, mature product availability, precise movement, and compact structure. Please refer to [reference needed]. Figure 2 The electric actuator is arranged vertically and above the connecting pipe 5. Compared with the arrangement where the electric actuator is placed below the connecting pipe 5, this arrangement has the advantage of a smaller overall height and improves the compactness of the overall structure.

[0034] In order for the controller 2 to accurately drive the cleaning brush 6 to a preset height via the automatic telescopic component 4, in some embodiments, please refer to... Figure 1 and Figure 2 A control switch 22 is installed on the top side of the connecting pipe 5. The control switch 22 is connected to the controller 2. The control switch 22 is a touch switch. When the automatic telescopic component 4 moves the connecting pipe 5 until the control switch 22 touches the support 1, it means that the cleaning brush 6 has moved to the preset height. At this time, the controller 2 issues a command to control the motor 8 to start running. The motor 8 drives the target body 9 to start rotating. The controller 2 also controls the air source component to start running, so as to carry out a comprehensive cleaning work of brushing the target surface and air blowing the target surface.

[0035] In some implementations, the cleaning brush 6 is detachably connected to the connecting tube 5. When the brush bristles are severely worn after prolonged use, the cleaning brush 6 can be replaced to ensure the cleaning effect on the target body 9.

[0036] In some implementation methods, please refer to the reference. Figure 1 and Figure 2The cleaning brush 6 is movably inserted into the connecting pipe 5. The cleaning brush 6 has a slot, and a threaded shaft 20 passes through the connecting pipe 5, threadedly connected to it. A locking block 21 is connected to the threaded shaft 20, slidably installed within the cavity of the connecting pipe 5, allowing it to slide into the slot. When the threaded shaft 20 moves outward, it causes the locking block 21 to move out of the slot, releasing it from its position on the cleaning brush 6. At this point, the old cleaning brush 6 can be removed from the connecting pipe 5, and a new, spare cleaning brush 6 can be inserted into its mounting position on the connecting pipe 5. Then, the threaded shaft 20 is reset, allowing the locking block 21 to re-enter the slot. This method allows for quick assembly and disassembly of the cleaning brush 6, enabling rapid replacement when the brush bristles are severely worn, thus improving work efficiency.

[0037] The detachable connection between the cleaning brush 6 and the connecting tube 5 is not limited to the connection method mentioned above, which includes the threaded shaft 20 and the locking block 21. It can also be connected by bolts 12.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A three-dimensional laser scanning target with self-cleaning function, characterized in that, include: Support; The motor is mounted on the support; The target body is connected to the output shaft of the motor; An automatic telescopic component is installed on the support; A connecting pipe is connected to the automatic telescopic component, which is used to drive the connecting pipe to move along the height direction; A cleaning brush is vertically distributed and installed at the bottom of the connecting pipe. When the automatic telescopic component drives the cleaning brush to move to a preset height, the bristles of the cleaning brush contact the target body. An air hole is provided on the side where the bristles of the cleaning brush are located, and an air passage is provided inside the cleaning brush to connect the air hole with the cavity of the connecting pipe. An air source assembly is installed on the support, and the air source assembly is connected to the connecting pipe and is used to supply air to the connecting pipe; The controller is installed on the support and is connected to the automatic telescopic component, the motor and the air source assembly.

2. The three-dimensional laser scanning target with self-cleaning function as described in claim 1, characterized in that, The air source assembly includes a fixed frame, an impeller, and an air pipe. The fixed frame is mounted on the support and has an inner cavity. The fixed frame has an air inlet communicating with the inner cavity. The impeller is rotatably mounted in the inner cavity. One end of the air pipe is connected to the fixed frame and communicates with the inner cavity. The other end of the air pipe communicates with the lumen of the connecting pipe. When the impeller rotates, it can transport air from the air inlet along the air pipe to the connecting pipe.

3. The three-dimensional laser scanning target with self-cleaning function as described in claim 2, characterized in that, The air source assembly includes a filter screen installed at the air inlet.

4. The three-dimensional laser scanning target with self-cleaning function as described in claim 2, characterized in that, The impeller is mounted on a rotating shaft, which is rotatably mounted on the fixed frame, and the rotating shaft is equipped with a first sprocket; The motor is located in the inner cavity. The motor is a dual-axis motor. The first output shaft of the dual-axis motor is connected to the target body. The second output shaft of the dual-axis motor is equipped with a second sprocket. The second sprocket and the first sprocket are connected by chain drive.

5. The three-dimensional laser scanning target with self-cleaning function as described in claim 4, characterized in that, The first output shaft is connected to a fixed sleeve, and the target body is connected to a fixed seat on the back side. The fixed seat passes through the fixed sleeve, and the fixed seat and the fixed sleeve are connected by bolts.

6. The three-dimensional laser scanning target with self-cleaning function as described in any one of claims 1-5, characterized in that, The automatic telescopic component is an electric push rod, which is arranged vertically and is higher than the connecting pipe.

7. The three-dimensional laser scanning target with self-cleaning function as described in claim 6, characterized in that, A control switch is installed on the top side of the connecting pipe. The control switch is signal-connected to the controller. When the automatic telescopic component moves the connecting pipe until the control switch is touched, the controller controls the motor to operate.

8. The three-dimensional laser scanning target with self-cleaning function as described in any one of claims 1-5, characterized in that, The three-dimensional laser scanning target with self-cleaning function is also equipped with a receiver, which is installed on the support and is signal-connected to the controller. The receiver is used to receive external signals to start cleaning the target body.

9. The three-dimensional laser scanning target with self-cleaning function as described in any one of claims 1-5, characterized in that, The cleaning brush is detachably connected to the connecting tube.

10. The three-dimensional laser scanning target with self-cleaning function as described in claim 9, characterized in that, The cleaning brush is movably inserted into the connecting tube. The cleaning brush has a slot. The connecting tube has a threaded shaft, which is threadedly connected to the connecting tube. The threaded shaft is connected to a locking block, which is slidably installed in the cavity of the connecting tube and can slide into the slot.

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