A laser scanning column

By introducing planar 2D lidar and rotating 2D lidar into the laser scanning column, combined with the rotation mechanism and lifting door adjustment device, the problems of single scanning angle and poor protection of existing laser scanning columns are solved, and accurate 3D scanning of objects and effective protection of equipment are achieved.

CN112799093BActive Publication Date: 2025-06-17ZHUHAI LTSMART TECH CO LTD
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Patent Information

Application Number
CN201911115365.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-11-14
Publication Date
2025-06-17
Estimated Expiration
2039-11-14

AI Technical Summary

Technical Problem

The existing laser scanning columns have a single scanning angle when used, and cannot fully scan objects. They lack effective protection measures and are susceptible to interference from external dust and water.

Method used

A laser scanning column is designed, including a plane 2D lidar and a rotating 2D lidar, which can measure the 3D model through a rotating mechanism, and protect the rotating 2D lidar through a lifting door adjustment device to avoid the entry of dust and water.

Benefits of technology

Accurate scanning of objects is achieved, the blind spots of plane 2D lidar are made up for, scanning accuracy is improved, and external interference is effectively prevented through lifting door adjustment device, improving the convenience of the equipment.

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Abstract

The present invention discloses a laser scanning column, which includes a housing, a control board installed at a position near the upper end of the inner surface of the housing for controlling the operation of the entire laser scanning column, a planar 2D lidar installed at a position near the upper end inside the housing for scanning an object, and a rotating 2D lidar installed at a position near the lower end inside the housing for scanning an object. A camera for taking pictures of the object is arranged above the planar 2D lidar. For the laser scanning column of the present invention, firstly, it can accurately scan an object to obtain specific parameters of the object, and the scanning effect is better. Secondly, it can prevent external dust and water stains from entering the rotating 2D lidar, preventing the rotating 2D lidar from being contaminated by external dust and water stains, and there is no need to separately clean the rotating 2D lidar during use, which is relatively convenient. Finally, there are multiple control methods, the application range is wide, and it brings a better application prospect.
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Description

Technical Field

[0001] The present invention relates to the field of laser scanning columns, and particularly to a laser scanning column. Background Art

[0002] With the development of society, people's living standards have been continuously improved, production technologies have become more and more advanced, and various items have emerged continuously. In order to facilitate people to better produce products and record the external situation, people have invented some instruments with scanning functions, among which there is a laser scanning column. With the rapid development of technology, people's requirements for laser scanning columns have been continuously improved, resulting in the existing laser scanning columns failing to meet people's usage requirements;

[0003] The existing laser scanning columns have certain drawbacks when in use. Firstly, the scanning angle of the existing laser scanning columns is relatively single when in use, and it is easy to have blind spots that cannot be scanned. Moreover, when directly scanning an object, it cannot well display the actual situation of the object, and the scanning accuracy is not high. Secondly, as people's requirements for laser scanning columns have been continuously improved, the lidar in the existing laser scanning columns is relatively precise, but the protection effect of the existing laser scanning columns is not good. During the use process, external dust and water will enter the inside of the laser scanning column, which will interfere with the rotating 2D lidar and requires people to clean it, unable to meet people's needs. For this reason, we propose a laser scanning column. Summary of the Invention

[0004] The main purpose of the present invention is to provide a laser scanning column, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] A laser scanning column, comprising a housing, a control board installed at a position near the upper end of the inner surface of the housing for controlling the operation of the entire laser scanning column, a planar 2D lidar installed at a position near the upper end inside the housing for scanning an object, and a rotating 2D lidar installed at a position near the lower end inside the housing for scanning an object. A camera for taking pictures of the object is arranged above the planar 2D lidar. A rotating mechanism for controlling the rotation of the rotating 2D lidar is arranged at a position near the lower end inside the housing. A lifting door for protecting the rotating 2D lidar is arranged in front of the rotating 2D lidar. An elevator door adjusting device for controlling the up and down movement of the elevator door and connected to the elevator door is arranged inside the housing;

[0007] The rotating mechanism includes a fixed frame, a rotating motor for driving the rotating 2D lidar to rotate, a rotating synchronous pulley set for connecting the rotating motor and the rotating 2D lidar, and a rotating detection mechanism for detecting the movement condition of the rotating 2D lidar;

[0008] The lift door adjusting device includes a mounting plate, a lift door motor for driving the lift door to move up and down, a lift door synchronous pulley set for connecting the lift door motor and the lift door, and a lift detection mechanism for detecting the movement condition of the lift door motor.

[0009] During use, the planar 2D lidar is used to measure the two-dimensional coordinates and shape of an object, the camera takes a photo of the object to make up for the physical photo that the planar 2D lidar cannot scan, the rotating mechanism drives the rotating 2D lidar to move, and measures the 3D model of the object, so as to accurately scan the object, obtain the parameters of the object, and have a better scanning effect.

[0010] Preferably, the rotation detection mechanism includes a rotation proximity switch installed on the outer surface of the fixed frame near the lower end on the side away from the rotation synchronous pulley set for detecting the rotation position of the rotating 2D lidar, and a rotation proximity switch sensing piece connected to one end of the rotating 2D lidar away from the rotation synchronous pulley set through a connecting shaft.

[0011] Preferably, the lift detection mechanism includes a lift door proximity switch arranged on one side of the mounting plate for detecting the lifting position of the lift door, and a lift proximity switch sensing piece installed on one side of the upper end of the lift door through bolts.

[0012] Preferably, the lift door synchronous pulley set includes two sets of synchronous pulleys, a synchronous belt, and a slider for fixing the lift door. The two sets of synchronous pulleys are respectively arranged at the position near the lower end of the inner surface of the housing and the front outer surface of the mounting plate. The output end of the rotation motor is movably connected to the synchronous pulley arranged on the front outer surface of the mounting plate. The synchronous pulley arranged at the position near the lower end of the inner surface of the housing is movably connected to the housing through a connecting shaft. The inner surface of the synchronous belt is movably connected to the outer surfaces of the two sets of synchronous pulleys, and the slider is clamped on the synchronous belt.

[0013] Through the provided lift door adjusting device, when in use, the lift door adjusting device drives the lift door to rise through the rotation synchronous pulley set, and the rotating 2D lidar scans. When the rotating 2D lidar is not used, the lift door descends, and the lower end of the lift door contacts the housing, which can prevent external dust and water stains from entering the rotating 2D lidar, prevent the rotating 2D lidar from being polluted by external dust and water stains, and there is no need to clean the rotating 2D lidar separately during use, which is relatively convenient.

[0014] Preferably, several groups of partitions are welded inside the housing, and the camera, planar 2D lidar, fixed frame, and mounting plate are respectively fixedly installed on several groups of partitions through bolts.

[0015] Preferably, chutes are provided at both sides near the front end of the lower end of the inner surface of the housing, and both ends of the lift door are located inside the chutes.

[0016] Preferably, rubber sealing strips are pasted on the outer surface of the lower end of the lifting door and the inner bottom surface of the housing near the front end.

[0017] Preferably, a number of bolt holes for fixing the position of the housing are provided on the outer surface of the bottom end of the housing, a number of operation buttons are arranged on the outer surface of the control board, and a network switch is arranged inside the control board.

[0018] During use, the operation buttons on the control board can be used to control the operation of the entire laser scanning column. The server can also be connected through the network switch, enabling the server to control the operation of the laser scanning column through the network and read the images of the rotating 2D lidar, planar 2D lidar, and camera. The control is relatively convenient, and the operation of the entire laser scanning column is convenient. The use effect is better than the traditional method, meeting people's usage requirements and being relatively practical.

[0019] Compared with the prior art, the present invention provides a laser scanning column, which has the following beneficial effects:

[0020] 1. During use, the planar 2D lidar is used to measure the two-dimensional coordinates and shape of an object, the camera takes a photo of the object to make up for the physical photo that the planar 2D lidar cannot scan, and the rotating mechanism drives the rotating 2D lidar to move to measure the 3D model of the object, so as to accurately scan the object and obtain the parameters of the object, and the scanning effect is better;

[0021] 2. Through the provided lifting door adjusting device, when in use, the lifting door adjusting device drives the lifting door to rise through the rotating synchronous pulley group, and the rotating 2D lidar scans. When the rotating 2D lidar is not used, the lifting door descends, and the lower end of the lifting door contacts the housing, which can prevent external dust and water stains from entering the rotating 2D lidar and prevent the rotating 2D lidar from being contaminated by external dust and water stains. It is not necessary to clean the rotating 2D lidar separately during use, which is relatively convenient;

[0022] 3. During use, the operation buttons on the control board can be used to control the operation of the entire laser scanning column. The server can also be connected through the network switch, enabling the server to control the operation of the laser scanning column through the network and read the images of the rotating 2D lidar, planar 2D lidar, and camera. The control is relatively convenient, and the operation of the entire laser scanning column is convenient. The use effect is better than the traditional method, meeting people's usage requirements and being relatively practical.

[0023] The parts not involved in this device are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a laser scanning column of the present invention;

[0025] Figure 2 This is a schematic structural diagram of a rotating mechanism in a laser scanning column of the present invention;

[0026] Figure 3 This is an installation diagram of a mounting plate in a laser scanning column of the present invention;

[0027] Figure 4 This is a partial structural diagram of a rotating mechanism in a laser scanning column of the present invention.

[0028] In the figure: 1, control board; 2, camera; 3, planar 2D lidar; 4, lift door motor; 5, lift door proximity switch; 6, lift door synchronous pulley set; 7, lift door; 8, rotation motor; 9, rotation synchronous pulley set; 10, rotation proximity switch; 11, rotating 2D lidar; 12, rotation proximity switch sensing piece. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0031] Embodiment

[0032] A laser scanning column, as Figures 1-4 shown, includes a housing, a control board 1 installed at the rear end near the upper end of the inner surface of the housing for controlling the operation of the entire laser scanning column, a planar 2D lidar 3 installed near the upper end inside the housing for scanning an object, and a rotating 2D lidar 11 installed near the lower end inside the housing for scanning an object. Above the planar 2D lidar 3, there is a camera 2 for taking pictures of the object. Inside the housing near the lower end, there is a rotating mechanism for controlling the rotation of the rotating 2D lidar 11. In front of the rotating 2D lidar 11, there is a lift door 7 for protecting the rotating 2D lidar 11. Inside the housing, there is a lift door adjustment device connected to the lift door 7 for controlling the up and down movement of the lift door 7;

[0033] The rotation mechanism includes a fixed frame, a rotation motor 8 for driving the rotation of the rotating 2D lidar 11, a rotation synchronous pulley set 9 for connecting the rotation motor 8 and the rotating 2D lidar 11, and a rotation detection mechanism for detecting the movement status of the rotating 2D lidar 11;

[0034] The lift door adjustment device includes a mounting plate, a lift door motor 4 for driving the lifting of the lift door 7, a lift door synchronous pulley set 6 for connecting the lift door motor 4 and the lift door 7, and a lift detection mechanism for detecting the movement status of the lift door motor 4.

[0035] During use, the planar 2D lidar 3 is used to measure the two-dimensional coordinates and shape of an object, and the camera 2 takes a photo of the object to make up for the physical photo that the planar 2D lidar 3 cannot scan. The rotation mechanism drives the rotating 2D lidar 11 to move and measure the 3D model of the object, so as to accurately scan the object, obtain the parameters of the object, and achieve a better scanning effect.

[0036] The rotation detection mechanism includes a rotation proximity switch 10 installed at a position near the lower end on the outer surface of the fixed frame away from the rotation synchronous pulley set 9 for detecting the rotation position of the rotating 2D lidar 11, and a rotation proximity switch sensing piece 12 connected to one end of the rotating 2D lidar 11 away from the rotation synchronous pulley set 9 through a connecting shaft.

[0037] During use, the rotation proximity switch sensing piece 12 rotates synchronously with the rotating 2D lidar 11. When it runs below the rotation proximity switch 10, the rotation proximity switch 10 senses the rotation proximity switch sensing piece 12, and the state of the rotation proximity switch 10 changes, so that the laser scanning column can easily control the precise rotation of the rotating 2D lidar 11.

[0038] The lift detection mechanism includes a lift door proximity switch 5 arranged on one side of the mounting plate for detecting the lifting position of the lift door 7, and a lift proximity switch sensing piece bolted to a position on the upper end side of the lift door 7.

[0039] During use, the lift proximity switch sensing piece rises and falls synchronously with the lift door 7. When the lift proximity switch sensing piece runs close to the lift door proximity switch 5, the lift door proximity switch 5 senses the lift proximity switch sensing piece, and the state of the lift door proximity switch 5 changes, so that the laser scanning column can easily control the lifting position of the lift door 7.

[0040] The lifting door synchronous pulley set 6 includes two sets of synchronous pulleys, a synchronous belt, and sliders for fixing the lifting door 7. The two sets of synchronous pulleys are respectively arranged at the position near the lower end of the inner surface of the housing and the outer surface of the front end of the mounting plate. The output end of the rotating motor 8 is movably connected to the synchronous pulley arranged on the outer surface of the front end of the mounting plate. The synchronous pulley arranged at the position near the lower end of the inner surface of the housing is movably connected to the housing through a connecting shaft. The inner surface of the synchronous belt is movably connected to the outer surfaces of the two sets of synchronous pulleys. The sliders are clamped on the synchronous belt.

[0041] Through the provided lifting door adjusting device, when in use, the lifting door adjusting device drives the lifting door 7 to rise by rotating the synchronous pulley set 9, and the 2D lidar 11 rotates for scanning. When the 2D lidar 11 is not in use, the lifting door 7 descends, and the lower end of the lifting door 7 contacts the housing, which can prevent external dust and water stains from entering the 2D lidar 11, preventing the 2D lidar 11 from being contaminated by external dust and water stains. When in use, there is no need to clean the 2D lidar 11 separately, which is relatively convenient.

[0042] Several groups of partitions are welded inside the housing. The camera 2, the planar 2D lidar 3, the fixing frame, and the mounting plate are respectively fixedly installed on several groups of partitions through bolts.

[0043] Chutes are provided at both sides near the front end of the lower end of the inner surface of the housing, and both ends of the lifting door 7 are located inside the chutes.

[0044] Rubber sealing strips are pasted on the outer surface of the lower end of the lifting door 7 and the inner bottom surface of the housing near the front end position. An origin proximity switch is arranged on the turntable of the rotating synchronous pulley set 9 to provide an absolute position reference for the lidar.

[0045] Several groups of bolt holes for fixing the position of the housing are provided on the outer surface of the bottom end of the housing. Several groups of operation buttons are arranged on the outer surface of the control board 1, and a network switch is arranged inside the control board 1.

[0046] When in use, the operation of the entire laser scanning column can be controlled through the operation buttons on the control board 1. It can also be connected to the server through the network switch, enabling the server to control the operation of the laser scanning column through the network and also read the images of the rotating 2D lidar 11, the planar 2D lidar 3, and the camera 2 through the network. The control is relatively convenient, and the operation of the entire laser scanning column is convenient. The use effect is better than the traditional method, meeting people's usage requirements and being relatively practical.

[0047] It should be noted that the present invention is a laser scanning column. When in use, the entire laser scanning column is started through the control board 1, and the planar 2D lidar 3 and the lifting door adjusting device are started. The planar 2D lidar 3 rotates along the horizontal direction and scans in the horizontal direction to measure the two-dimensional coordinates and shape of an object. During the scanning, the lifting door motor 4 is started. The rotation of the lifting door motor 4 drives the synchronous pulley in the lifting door synchronous pulley group 6 to rotate. The rotation of the synchronous pulley drives the synchronous belt to move, and the slider on the synchronous belt will move together with the synchronous pulley to lift the lifting door 7. After the planar 2D lidar 3 scans and determines the coordinates of the object, the camera 2 and the rotating 2D lidar 11 rotate to the direction determined by the planar 2D lidar 3. The camera 2 takes a photo of the object to make up for the physical photo that the lidar cannot scan. At the same time, the rotating mechanism is started, the rotating motor 8 is started, and the rotating 2D lidar 11 is driven to rotate through the rotating synchronous pulley group 9 to scan the object from various angles and measure the 3D model of the object. After scanning the object, the lifting door adjusting device is started again. The lifting door motor 4 moves in the reverse direction, and the reverse movement of the synchronous belt is driven by the rotation of the synchronous pulley, so that the slider descends, and the lifting door 7 blocks the rotating 2D lidar 11;

[0048] When in use, the planar 2D lidar 3 is used to measure the two-dimensional coordinates and shape of an object. The camera 2 takes a photo of the object to make up for the physical photo that the planar 2D lidar 3 cannot scan. The rotating mechanism drives the rotating 2D lidar 11 to move and measure the 3D model of the object, so as to accurately scan the object, obtain the parameters of the object, and have a better scanning effect;

[0049] Through the provided lifting door adjusting device, when in use, the lifting door adjusting device drives the lifting door 7 to rise through the rotating synchronous pulley group 9, and the rotating 2D lidar 11 scans. When the rotating 2D lidar 11 is not used, the lifting door 7 descends, and the lower end of the lifting door 7 contacts the outer shell, which can prevent external dust and water stains from entering the rotating 2D lidar 11 and prevent the rotating 2D lidar 11 from being contaminated by external dust and water stains. When in use, there is no need to clean the rotating 2D lidar 11 separately, which is more convenient;

[0050] When in use, the operation of the entire laser scanning column can be controlled through the operation buttons on the control board 1. It can also be connected to the server through the network switch, so that the server can control the operation of the laser scanning column through the network, and can also read the images of the rotating 2D lidar 11, the planar 2D lidar 3 and the camera 2 through the network. The control is more convenient, and the operation of the entire laser scanning column is convenient. The use effect is better than the traditional method, meeting people's use requirements and being more practical.

[0051] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A laser scanning column, characterized in that: It includes a housing, a control board (1) installed at the rear end near the upper end of the inner surface of the housing for controlling the operation of the entire laser scanning column, a planar 2D lidar (3) installed near the upper end inside the housing for scanning an object, and a rotary 2D lidar (11) installed near the lower end inside the housing for scanning an object. Above the planar 2D lidar (3), there is a camera (2) for taking pictures of the object. Inside the housing near the lower end, there is a rotating mechanism for controlling the rotation of the rotary 2D lidar (11). In front of the rotary 2D lidar (11), there is a lifting door (7) for protecting the rotary 2D lidar (11). Inside the housing, there is a lifting door adjusting device connected to the lifting door (7) for controlling the up and down movement of the lifting door (7). The rotating mechanism includes a fixed frame, a rotating motor (8) for driving the rotary 2D lidar (11) to rotate, a rotating synchronous pulley set (9) for connecting the rotating motor (8) and the rotary 2D lidar (11), and a rotating detection mechanism for detecting the movement status of the rotary 2D lidar (11). The lifting door adjusting device includes a mounting plate, a lifting door motor (4) for driving the lifting door (7) to lift and lower, a lifting door synchronous pulley set (6) for connecting the lifting door motor (4) and the lifting door (7), and a lifting detection mechanism for detecting the movement status of the lifting door motor (4). The rotating detection mechanism includes a rotary proximity switch (10) installed at a position near the lower end of the outer surface of the fixed frame away from the rotating synchronous pulley set (9) for detecting the rotation position of the rotary 2D lidar (11), and a rotary proximity switch sensing piece (12) connected to one end of the rotary 2D lidar (11) away from the rotating synchronous pulley set (9) through a connecting shaft. The lifting detection mechanism includes a lifting door proximity switch (5) arranged on one side of the mounting plate for detecting the lifting and lowering position of the lifting door (7), and a lifting proximity switch sensing piece bolted to a position on the upper end side of the lifting door (7). The lifting door synchronous pulley set (6) includes two sets of synchronous pulleys, a synchronous belt, and a slider for fixing the lifting door (7). The two sets of synchronous pulleys are respectively arranged at a position near the lower end of the inner surface of the housing and the front outer surface of the mounting plate. The output end of the rotating motor (8) is movably connected to the synchronous pulley arranged on the front outer surface of the mounting plate. The synchronous pulley arranged at the position near the lower end of the inner surface of the housing is movably connected to the housing through a connecting shaft. The inner surface of the synchronous belt is movably connected to the outer surfaces of the two sets of synchronous pulleys, and the slider is clamped on the synchronous belt. Rubber sealing strips are pasted on the outer surface of the lower end of the lifting door (7) and the inner bottom surface of the housing near the front end position.

2. The laser scanning column according to claim 1, characterized in that: Several groups of partitions are welded inside the housing. The camera (2), the planar 2D lidar (3), the fixed frame, and the mounting plate are respectively fixedly installed on several groups of partitions through bolts.

3. The laser scanning column according to claim 1, characterized in that: Chutes are opened at both positions near the front end on the lower end of the inner surface of the housing. Both ends of the lifting door (7) are located inside the chutes.

4. The laser scanning column according to claim 1, characterized in that: A plurality of groups of bolt holes for fixing the position of the outer shell are provided on the outer surface of the bottom end of the outer shell, a plurality of groups of operation buttons are arranged on the outer surface of the control board (1), and a network switch is arranged inside the control board (1).

Citation Information

Patent Citations

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    CN110133621A

  • Laser scanner and laser radar system

    CN209433004U

  • Laser scanning column

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