Handheld three-dimensional scanner and photographing type multifunctional three-dimensional measuring instrument thereof

By designing a handheld three-dimensional scanner and using a multi-camera and laser system, the problems of low accuracy and single scanning mode in traditional three-dimensional scanners when scanning large objects are not high, achieving high-precision and multi-functional three-dimensional scanning effect.

CN119594847APending Publication Date: 2025-03-11HOLON THREE-DIMENSIONAL TECH (SHEN ZHEN) CO LTD
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Patent Information

Application Number
CN202411613836.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-13
Publication Date
2025-03-11

AI Technical Summary

Technical Problem

Traditional handheld three-dimensional scanners are difficult to achieve high-precision and high-detail object feature restoration when scanning large objects. At the same time, the scanning mode is single, and the acquisition accuracy cannot be adjusted.

Method used

A handheld three-dimensional scanner and its photography multi-function three-dimensional measuring instrument are designed, using the first camera, the second camera, the gimbal fixture, the laser stand and the turntable. The laser beam is emitted through the handheld outer shell, and the photosensitive element receives reflected light, quickly reads the light point information and converts it into point cloud data, realizing three-dimensional modeling.

Benefits of technology

It realizes high-precision three-dimensional scanning, combining the characteristics of handheld laser scanning and photo-based three-dimensional scanners, adapts to different workpiece sizes, has a fast scanning speed and improves efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of intelligent manufacturing equipment, and particularly relates to a handheld three-dimensional scanner and a photographing type multifunctional three-dimensional measuring instrument thereof, the handheld three-dimensional scanner comprises an outer shell, a key, a key PCB and a key cover plate, the key is arranged on the outer side end face of the outer shell, the key PCB is arranged at the rear end of the key, and the key cover plate is arranged at the rear end of the key PCB. Through the arrangement of the first camera, the second camera, the holder fixing frame, the laser device seat frame and the rotary table, a laser beam is emitted to the surface of an object through the handheld outer shell, reflected light carries three-dimensional information of the surface of the object, such as geometrical shape and texture information of the surface and a photosensitive element of a scanner, so that the device can be used for multiple purposes; meanwhile, two functions of handheld laser scanning operation and photographing type three-dimensional scanner operation are achieved; the high precision of a photographing type three-dimensional scanner is achieved, and the characteristic that a handheld three-dimensional scanner is high in adaptability to the surface of a workpiece is also compatible; meanwhile, the scanning speed is high, manpower is liberated, and efficiency is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of intelligent manufacturing equipment, in particular to a handheld three-dimensional scanner and a photographic multifunctional three-dimensional measuring instrument thereof. Background Art

[0002] A 3D scanner is a scientific instrument used to detect and analyze the shape and appearance data of objects or environments in the real world, including properties such as geometric structure, color, and surface albedo. It performs 3D reconstruction calculations based on the collected data to create digital models of actual objects in the virtual world. These models are widely used in industrial design, defect detection, reverse engineering, robot guidance, topographic measurement, medical information, bioinformatics, criminal identification, digital cultural relics collection, film production, and game creation materials.

[0003] The structure of the 3D scanner consists of a frame, lens, laser group, circuit board, button, rubber pad, and shell. The frame is the main bracket, connecting two high-precision camera lenses, laser group and circuit board. The shell is combined with each other to fix the device, and the rubber pad at the bottom of the device is stable and non-slip.

[0004] With the rapid development of technologies such as 3D printing, virtual reality, and augmented reality, the demand for 3D scanning technology is increasing.

[0005] Traditional handheld 3D scanners have the following shortcomings:

[0006] 1. When scanning large objects, it is not possible to scan super large sizes and restore the object features with high precision and high detail.

[0007] 2. The scanning mode is not flexible enough, the scanning mode is single, and the acquisition accuracy of the object cannot be adjusted during object scanning. Summary of the invention

[0008] In view of the deficiencies of the prior art, the present invention provides a handheld three-dimensional scanner and a photographic multifunctional three-dimensional measuring instrument thereof, which solve the current problems of low precision and single scanning mode.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: a handheld 3D scanner and a photographic multifunctional 3D measuring instrument thereof, comprising an outer shell, a key, a key PC, and a key cover, wherein the key is arranged on the outer end surface of the outer shell, the key PCB is arranged at the rear end of the key, the key cover is arranged at the rear end of the key PCB, and a first camera is arranged at the inner upper end of the outer shell;

[0010] A second camera is arranged at the lower end of the inner side of the outer shell, a pan / tilt fixing frame is arranged at the side end of the key cover plate, frames are arranged at the side ends of the first camera and the second camera, a laser mount is arranged between the first camera and the second camera, a light source cover is arranged at the outer side of the second camera, and a laser cover plate is arranged at the rear end of the laser mount;

[0011] The second camera also includes a breathing light frame and a breathing light cover. The breathing light frame is arranged on one side of the upper end of the second camera, and the breathing light cover is arranged on the front end of the second camera.

[0012] As a preferred technical solution of the present invention, the laser mount also includes an engine, a turntable, and a laser. The engine is fixedly installed at the inner end of the laser mount, the turntable is movably connected to the side end of the engine, and the laser is plugged into the front end of the turntable.

[0013] As a preferred technical solution of the present invention, the outer shell also includes a PCB board, a tail plug board, a screw rubber plug, a first handle rubber pad, a second handle rubber pad and a base foot pad.

[0014] As a preferred technical solution of the present invention, the PCB board is fixedly installed on the upper end of the first camera, the tail plug board is plugged into the lower end of the PCB board, the screw plug is plugged into the side end of the outer shell, and the first handle rubber pad, the second handle rubber pad and the base foot pad are all fixedly connected to the outer end surface of the outer shell.

[0015] As a preferred technical solution of the present invention, a through groove structure is opened in the middle of the outer shell near the lower end, and the first handle rubber pad is connected to the inner wall of the groove structure.

[0016] As a preferred technical solution of the present invention, the rectangular structure on the upper end side of the pan / tilt fixing frame passes through the side end of the outer shell and is exposed to the outside of the outer shell.

[0017] As a preferred technical solution of the present invention, the angle at which the laser can be rotated by the turntable is adjusted according to the drive of the engine and is controlled by a button.

[0018] Compared with the prior art, the present invention provides a handheld 3D scanner and a camera-type multifunctional 3D measuring instrument:

[0019] The handheld 3D scanner and its photographic multifunctional 3D measuring instrument are provided with a first camera, a second camera, a pan / tilt fixing frame, a laser mount and a turntable. When the device is in operation, the operator holds the outer shell and emits a laser beam to the surface of the object. The reflected light carries the 3D information of the surface of the object, such as the geometric shape and texture information of the surface. The photosensitive element of the scanner (such as a CCD or CMOS sensor) receives the reflected light. These photosensitive elements can quickly read a large amount of light point information, and convert it into electrical signals, which are then converted into point cloud data to realize 3D modeling of the object.

[0020] By attaching marking points to the surface of the workpiece to be measured, the device will face the workpiece to be measured and provide real-time feedback on the scanning progress and results. Users can adjust the scanning strategy and angle based on the feedback, and adjust different distances and angles according to the size of the workpiece. According to the different needs of the workpiece, the scanning process can be switched to handheld scanning or camera mode, and the three-dimensional data can be presented in real time on the computer through data cable transmission;

[0021] Through the above process, the device can have the following beneficial effects:

[0022] Through user feedback and adjustment, one machine can be used for multiple purposes, with two functions: handheld laser scanning and photo-type 3D scanner. It not only achieves the high precision of photo-type 3D scanner, but also has the strong adaptability of handheld 3D scanner to the workpiece surface. At the same time, it has a fast scanning speed, which frees up manpower and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the side end structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of both sides of the external shell of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal structure of the present invention;

[0027] Figure 5 It is an exploded view of the internal parts of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal split structure of the laser mount of the present invention;

[0029] Figure 7 It is a schematic diagram of the external structure of the outer shell of the present invention.

[0030] In the figure: 1. outer shell; 101. PCB board; 102. tail plug board; 103. screw plug; 104. first handle rubber pad; 105. second handle rubber pad; 106. base foot pad; 2. button; 3. button PCB board; 4. button cover; 5. first camera; 6. second camera; 601. breathing light stand; 602. breathing light cover; 7. pan / tilt fixing stand; 8. rack; 9. laser mount; 901. engine; 902. turntable; 903. laser; 10. light source cover; 11. laser cover. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In this embodiment: a handheld 3D scanner and a camera-type multifunctional 3D measuring instrument thereof, comprising an outer shell 1, a key 2, a key PCB board 3, and a key cover plate 4, wherein the key 2 is arranged on the outer end surface of the outer shell 1, the key PCB board 3 is arranged at the rear end of the key 2, the key cover plate 4 is arranged at the rear end of the key PCB board 3, and a first camera 5 is arranged at the inner upper end of the outer shell 1;

[0033] A second camera 6 is arranged at the lower end of the inner side of the outer shell 1, a pan / tilt fixing frame 7 is arranged at the side end of the key cover plate 4, a frame 8 is arranged at the side ends of the first camera 5 and the second camera 6, a laser mount 9 is arranged between the first camera 5 and the second camera 6, a light source cover 10 is arranged at the outer side of the second camera 6, and a laser cover plate 11 is arranged at the rear end of the laser mount 9;

[0034] The second camera 6 further includes a breathing light frame 601 and a breathing light cover 602 . The breathing light frame 601 is arranged at one side of the upper end of the second camera 6 , and the breathing light cover 602 is arranged at the front end of the second camera 6 .

[0035] In this embodiment, the laser mount 9 also includes an engine 901, a turntable 902, and a laser 903. The engine 901 is fixedly mounted on the inner end of the laser mount 9, the turntable 902 is movably connected to the side end of the engine 901, and the laser 903 is plugged into the front end of the turntable 902; the outer shell 1 also includes a PCB board 101, a tail plug board 102, a screw rubber plug 103, a first handle rubber pad 104, a second handle rubber pad 105, and a base foot pad 106;

[0036] Specifically, Figure 1 , 2As shown in , 5 and 6, the laser 903 is installed inside the laser mount 9, and the angle is adjusted by the drive of the turntable 902 and the engine 901;

[0037] In this embodiment, the PCB board 101 is fixedly installed on the upper end of the first camera 5, the tail plug board 102 is plugged into the lower end of the PCB board 101, the screw rubber plug 103 is plugged into the side end of the outer shell 1, and the first handle rubber pad 104 and the second handle rubber pad 105 and the base foot pad 106 are all fixedly connected to the outer end surface of the outer shell 1; a through groove structure is opened in the middle part of the outer shell 1 near the lower end, and the first handle rubber pad 104 is connected to the inner wall of the groove structure;

[0038] Specifically, Figure 3 , 4 As shown in 6 and 7, by wrapping the first handle rubber pad 104 and the second handle rubber pad 105, the outer portion of the outer shell 1 for holding is effectively improved in friction, achieving an anti-slip effect;

[0039] In this embodiment, the rectangular structure of the pan / tilt fixing frame 7 on the upper side passes through the side end of the outer shell 1 and is exposed to the outside of the outer shell 1; the angle at which the laser 903 can be rotated through the turntable 902 is adjusted according to the drive of the engine 901 and is controlled by the button 2.

[0040] The working principle and use process of the present invention are as follows: the operator connects the computer to the device through a 3-meter or 5-meter data transmission optical fiber, affixes a mark point to the workpiece, starts the scanner, stands at a distance of 650 meters or 330 meters (fine mode) from the workpiece and starts scanning. The operator holds the outer shell 1 and emits a laser beam to the surface of the object. The reflected light carries the three-dimensional information of the surface of the object, such as the geometric shape and texture information of the surface. The photosensitive element of the scanner (such as a CCD or CMOS sensor) receives the reflected light. These photosensitive elements can quickly read a large amount of light point information, and convert it into electrical signals, which are then converted into point cloud data to realize the three-dimensional modeling of the object.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A handheld three-dimensional scanner and a photographic multifunctional three-dimensional measuring instrument thereof, comprising an outer shell (1), a key (2), a key PCB board (3), and a key cover plate (4), wherein the key (2) is arranged on the outer end surface of the outer shell (1), the key PCB board (3) is arranged at the rear end of the key (2), the key cover plate (4) is arranged at the rear end of the key PCB board (3), and a first camera (5) is arranged at the inner upper end of the outer shell (1), characterized in that: A second camera (6) is arranged at the lower inner end of the outer shell (1), a pan / tilt fixing frame (7) is arranged at the side end of the key cover plate (4), a frame (8) is arranged at the side ends of the first camera (5) and the second camera (6), a laser mount (9) is arranged between the first camera (5) and the second camera (6), a light source cover (10) is arranged at the outer side of the second camera (6), and a laser cover plate (11) is arranged at the rear end of the laser mount (9); The second camera (6) further comprises a breathing light frame (601) and a breathing light cover (602), wherein the breathing light frame (601) is arranged on one side of the upper end of the second camera (6), and the breathing light cover (602) is arranged at the front end of the second camera (6).

2. A handheld 3D scanner and a photographic multifunctional 3D measuring instrument thereof according to claim 1, characterized in that: The laser mount (9) further comprises an engine (901), a turntable (902), and a laser (903); the engine (901) is fixedly mounted on the inner end of the laser mount (9); the turntable (902) is movably connected to the side end of the engine (901); and the laser (903) is plugged into the front end of the turntable (902).

3. The handheld 3D scanner and the camera-type multifunctional 3D measuring instrument according to claim 1 are characterized in that: The outer shell (1) further comprises a PCB board (101), a tail plug board (102), a screw rubber plug (103), a first handle rubber pad (104), a second handle rubber pad (105) and a base foot pad (106).

4. A handheld 3D scanner and a photographic multifunctional 3D measuring instrument thereof according to claim 3, characterized in that: The PCB board (101) is fixedly mounted on the upper end of the first camera (5), the tail plug board (102) is plugged into the lower end of the PCB board (101), the screw rubber plug (103) is plugged into the side end of the outer shell (1), and the first handle rubber pad (104), the second handle rubber pad (105) and the base foot pad (106) are all fixedly connected to the outer end surface of the outer shell (1).

5. The handheld 3D scanner and the camera-type multifunctional 3D measuring instrument according to claim 1 are characterized in that: A through groove structure is provided in the middle of the outer shell (1) near the lower end, and the first handle rubber pad (104) is connected to the inner wall of the groove structure.

6. The handheld 3D scanner and the camera-type multifunctional 3D measuring instrument according to claim 1, characterized in that: The rectangular structure of the pan / tilt fixing frame (7) on the upper side passes through the side end of the outer shell (1) and is exposed outside the outer shell (1).

7. The handheld 3D scanner and the camera-type multifunctional 3D measuring instrument according to claim 2 are characterized in that: The angle at which the laser (903) can be rotated by the turntable (902) is adjusted according to the drive of the engine (901) and is controlled by a button (2).