Scanning device and three-dimensional scanning assembly

Abstract

The utility model relates to a scanning device and a three-dimensional scanning assembly. The scanning device is used for being matched with a tracker to scan a to-be-scanned piece and comprises a scanning frame and a scanning part. The scanning frame is used for being tracked by the tracker. The scanning part comprises a scanning unit and a probe unit, the scanning unit and the probe unit are both connected with the scanning frame, and the scanning unit and the probe unit cooperatively scan the part to be scanned. The scanning unit and the probe unit are both connected with the scanning frame, and when a user switches between the scanning unit and the probe unit, equipment does not need to be replaced, and switching can be directly carried out. Besides, when the probe unit is used, the probe unit can be used without aligning the surface with the mark points to the tracker, and the probe unit can be tracked by the tracker by directly utilizing the mark points on the scanning frame. And therefore, complicated replacement operation and alignment operation are avoided.

Description

Technical Field

[0001] This application relates to the field of three-dimensional scanning, and particularly to a scanning device and a three-dimensional scanning assembly. Background Art

[0002] Scanning devices are mainly used to detect and analyze the shape (geometric structure) and appearance data (such as properties like color, surface albedo, etc.) of objects or environments in the real world. The collected data is often used for three-dimensional reconstruction calculations to create digital models of actual objects in a virtual world.

[0003] However, in existing products, only a scanner is used in combination with a tracker, or a probe is used in combination with a tracker alone. When a user needs to perform probe dotting operations during scanning, they need to replace the equipment to execute, and this process is very cumbersome. Summary of the Utility Model

[0004] The purpose of this application is to provide a scanning device and a three-dimensional scanning assembly.

[0005] According to the first aspect of the embodiments of this application, a scanning device is provided for cooperating with a tracker to scan a workpiece to be scanned. The scanning device includes:

[0006] A scanning frame for being tracked in position by the tracker;

[0007] A scanning unit including a scanning element and a probe unit, and both the scanning element and the probe unit are connected to the scanning frame. The scanning element and the probe unit cooperate to scan the workpiece to be scanned.

[0008] The scanning frame includes an installation space. At least part of the scanning element is arranged in the installation space, at least part of the probe unit is arranged in the installation space and connected to the scanning element, and at least part of the probe unit extends outside the installation space. This setting can facilitate the probe unit to perform contact scanning. And the length of the probe unit extending outside the installation space can be set to be greater than or equal to 1 cm and less than or equal to 5 cm. Within this range, good contact scanning of holes can be performed. For example, the length of the probe unit extending outside the installation space can be set to 1 cm, 2 cm, 3 cm, 4 cm, 5 cm.

[0009] In this embodiment, both the scanning element and the probe unit are fixedly connected to the scanning frame. When a user switches between the scanning element and the probe unit, there is no need to replace the equipment and it can be directly switched. In addition, when using the probe unit, there is no need to align the surface with marked points to the tracker for use. The probe unit can directly utilize the marked points on the scanning frame to be tracked by the tracker. Thus, complicated replacement operations and alignment operations are avoided.

[0010] In some embodiments, the scanning device includes a mounting portion, which includes a detachable first connection unit and a second connection unit. The first connection unit is disposed on the scanning unit, and the second connection unit is disposed on the probe unit;

[0011] The probe unit and the scanning portion are detachably connected through the mounting portion.

[0012] Based on the above settings, the probe unit and the scanning portion are detachably arranged. Therefore, when only one of the probe unit or the scanning portion is used, the other can be removed, thus avoiding the user having to hold the entire scanning device for a long time. In addition, since the probe unit and the scanning portion are detachably arranged, one of the probe unit or the scanning portion can be replaced to adapt to different workpieces to be scanned. For example, when the hole depths of the workpieces to be scanned are different, different probe units can be replaced to obtain probe heads of different lengths, and thus the holes of the workpieces to be scanned can be scanned better.

[0013] In some embodiments, the scanning device further includes a positioning portion, which includes a first positioning unit and a second positioning unit. The first positioning unit is disposed on the first connection unit, and the second positioning unit is disposed on the second connection unit.

[0014] When the probe unit is connected to the scanning unit, the first connection unit is connected to the second connection unit, and the first positioning unit and the second positioning unit are correspondingly arranged.

[0015] The positioning portion can be a positioning groove and a positioning protrusion, or it can also be a positioning sensor, etc. As long as it can keep the positions consistent when the probe unit is connected to the scanning unit, it is within the protection scope of this embodiment. This positioning portion can keep the positions consistent when the probe unit is connected to the scanning unit, so that the data obtained by the probe unit and the scanning unit will not shift, and thus more accurate three-dimensional data can be obtained.

[0016] In some embodiments, one of the scanning unit and the probe unit is provided with an inward depression, and the other is provided with an outward protrusion. The first connection unit is disposed in the inward depression, and the second connection unit is disposed on the outward protrusion;

[0017] When the probe unit is connected to the scanning unit, the outward protrusion is disposed in the inward depression, and the first connection unit is connected to the second connection unit.

[0018] Through the above settings of the inward depression and the outward protrusion, the user only needs to perform simple plugging and unplugging to disassemble or connect the scanning unit and the probe unit. This process is simple and convenient, and can be operated smoothly.

[0019] In some embodiments, the first connection unit is an internal thread, the second connection unit is an external thread, and the internal thread and the external thread can be arranged to cooperate with each other; and / or,

[0020] The first connection unit is a first magnetic member, the second connection unit is a second magnetic member, and the first magnetic member can be arranged to attract the second magnetic member.

[0021] Through the above-mentioned cooperation mode of the internal thread and the external thread, or through the cooperation mode of the first magnetic member and the second magnetic member, the probe unit and the scanning part can be connected more firmly, thereby preventing displacement between the probe unit and the scanning part during the operation, and further obtaining more accurate three-dimensional data.

[0022] In some embodiments, the probe unit can be switched between a first position and a second position. The first position is that the probe unit forms a first angle with the length direction of the scanning unit, and the second position is that the probe unit forms a second angle with the length direction of the scanning unit.

[0023] The user can adjust the probe unit to a position convenient for scanning according to different situations, thereby making the scanning operation by the user more convenient and smooth.

[0024] In some embodiments, the scanning unit is provided with a receiving space, and the probe unit can be switched between a retracted position and a use position;

[0025] When the probe is in the retracted position, the probe unit is located in the receiving space. When the probe is in the use position, at least part of the probe unit is located outside the receiving space.

[0026] Based on the above settings, when using the probe unit, the probe unit can be taken out of the receiving space for scanning operation; when the probe unit is not needed, the probe unit can be placed in the receiving space, which can prevent the probe unit from colliding with other components, and can also avoid blocking the light emitted by the emission device of the scanning frame and avoid blocking the image acquisition by the imaging device.

[0027] In some embodiments, the scanning device includes a control unit, and the scanning unit and the probe unit are respectively connected to the control unit and are turned on or off under the control of the control unit; and / or

[0028] The scanning device further includes a power supply unit, and the power supply unit is respectively connected to the scanning unit and the probe unit to supply energy to the scanning unit and the probe unit.

[0029] The scanning unit and the probe unit in this embodiment share a control unit, which can reduce the volume after the combination of the scanning unit and the probe unit, and reduce the components to be used, thereby reducing the overall cost of the scanning unit and the probe unit. Similarly, a power supply unit can supply energy to the scanning unit and the probe unit respectively, which can reduce the volume after the combination of the scanning unit and the probe unit, thereby obtaining a smaller combined volume and reducing the overall cost of the scanning unit and the probe unit.

[0030] In some embodiments, the scanning unit includes a transmitting device and imaging devices located on both sides of the transmitting device, and the imaging devices receive the light emitted by the transmitting device;

[0031] The probe unit includes a probe head. When the probe unit performs scanning, the probe head contacts the object to be scanned.

[0032] By continuously projecting the light of the transmitting device onto the surface of the object to be scanned, the imaging device synchronously acquires images, then calculates the images, and uses phase measurement technology to determine the three-dimensional spatial coordinates of the object surface. The probe head can obtain accurate three-dimensional coordinate information through direct contact with the surface of the object to be scanned, and then construct a three-dimensional model of the object to be scanned.

[0033] According to the second aspect of the embodiments of the present application, a three-dimensional scanning assembly is provided, including a tracker and a scanning device as described in the above embodiments.

[0034] The beneficial technical effects brought by the technical solutions provided by the embodiments of the present application are:

[0035] Both the scanning unit and the probe unit are connected to the scanning frame. When the user switches between the scanning unit and the probe unit, there is no need to replace the device and it can be directly switched. In addition, when using the probe unit, there is no need to align the surface with marked points with the tracker to use. The probe unit can directly use the marked points on the scanning frame to be tracked by the tracker. Thereby avoiding complicated replacement operations and alignment operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0037] Figure 1 It is a schematic structural diagram of a scanner shown according to an embodiment of the present application.

[0038] Figure 2Schematic structural diagram of a probe shown according to an embodiment of the present application.

[0039] Figure 3 Schematic structural diagram of a state of a scanning device shown according to an embodiment of the present application.

[0040] Figure 4 Schematic structural diagram of another state of a scanning device shown according to an embodiment of the present application.

[0041] Figure 5 Schematic structural diagram of a probe unit shown according to an embodiment of the present application.

[0042] Figure 6 Schematic structural diagram of a scanning unit shown according to an embodiment of the present application.

[0043] Description of reference numerals

[0044] Scanner 1

[0045] Probe 2

[0046] Scanning device 10

[0047] Scanning frame 100

[0048] Installation space 110

[0049] Scanning unit 200

[0050] Scanning unit 210

[0051] Transmitting device 211

[0052] Imaging device 212

[0053] Probe unit 220

[0054] Probe head 221

[0055] Installation part 300

[0056] Marking point 400

[0057] First position A1

[0058] Second position A2 Detailed implementation manners

[0059] Here, the technical solutions in the embodiments (or "implementation manners") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0060] If there are terms related to directional indication or positional relationship in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship and motion conditions between components in a specific posture (as shown in the attached drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be construed as indicating or implying relative importance.

[0061] Referring to Figure 1 and Figure 2 as shown, in the 3D modeling process, the tracker, scanner 1, and probe 2 play different roles. Among them, referring to Figure 1 as shown, scanner 1 is used to collect the 3D geometric information of the object surface. It usually emits a certain form of energy (such as laser, infrared, or structured light) and receives its reflected signal, thereby calculating the positions of each point on the object surface. Referring to Figure 2 as shown, probe 2 is usually used for contact measurement, especially when specific features of the object (such as holes, edges, or parts that are difficult to measure by non-contact methods) need to be measured. In addition, probe 2 can be measured manually or installed on a robotic arm. The tracker is used to monitor and record the positions and directions of scanner 1 and probe 2 in space. This is crucial for ensuring the accuracy of all data, especially when moving scanner 1 or probe 2. The tracker, scanner 1, and probe 2 can work together to jointly create a highly accurate and complete 3D model. This integrated method is very useful in fields such as industrial design, reverse engineering, medical applications, and cultural relic protection.

[0062] However, in existing products, only scanner 1 is used in combination with the tracker or probe 2 is used in combination with the tracker alone. When the user needs to perform the probe 2 scanning operation during scanning, the device needs to be replaced to execute, and this process is very cumbersome. And, continuing to refer to Figure 2 as shown, when probe 2 is performing scanning, it only has the marking points 400 on one surface, and this surface needs to be aligned with the tracker to be used normally. Therefore, there are angular limitations during the operation.

[0063] Referring to Figure 3As shown in the figure, the present application provides a scanning device 10 for cooperating with a tracker (not shown in the figure) to scan a workpiece to be scanned. The scanning device 10 includes a scanning frame 100 and a scanning unit 200. The scanning frame 100 is provided with marking points 400, which can help the tracker determine the position and orientation of the scanner 1, ensuring the accuracy and consistency of the scanned data. The scanning unit 200 includes a scanning unit 210 and a probe unit 220, and both the scanning unit 210 and the probe unit 220 are connected to the scanning frame 100, and the scanning unit 210 and the probe unit 220 cooperate to scan the workpiece to be scanned.

[0064] It should be noted that with reference to Figure 6 As shown in the figure, the scanning unit 210 includes a transmitting device 211 and imaging devices 212 located on both sides of the transmitting device 211, and the imaging devices 212 receive the light emitted by the transmitting device 211. By continuously projecting the light of the transmitting device 211 onto the surface of the workpiece to be scanned, the imaging devices 212 synchronously acquire images, then calculate the images, and use phase measurement technology to determine the three-dimensional spatial coordinates of the object surface. With reference to Figure 5 As shown in the figure, the probe unit 220 includes a probe head 221. When the probe unit 220 performs scanning, the probe head 221 contacts the workpiece to be scanned. The probe head 221 can obtain accurate three-dimensional coordinate information through direct contact with the surface of the workpiece to be scanned, and then construct a three-dimensional model of the workpiece to be scanned.

[0065] In addition, with reference to Figure 3 and Figure 4 As shown in the figure, the scanning frame 100 includes an installation space 110. At least part of the scanning unit 210 is arranged in the installation space 110, at least part of the probe unit 220 is arranged in the installation space 110 and is connected to the scanning unit 210, and at least part of the probe unit 220 extends outside the installation space 110. Such an arrangement can facilitate the probe unit 220 to perform contact scanning. And the length of the probe unit 220 extending outside the installation space 110 can be set to be greater than or equal to 1 cm and less than or equal to 5 cm. Within this range, contact scanning of holes can be well performed. For example, the length of the probe unit 220 extending outside the installation space 110 can be set to 1 cm, 2 cm, 3 cm, 4 cm, 5 cm.

[0066] In this embodiment, both the scanning unit 210 and the probe unit 220 are fixedly connected to the scanning frame 100. When the user switches between the scanning unit 210 and the probe unit 220, there is no need to replace the device, and the switching can be directly performed. In addition, when using the probe unit 220, there is no need to align the surface with the marking points 400 towards the tracker for use. The probe unit 220 can directly utilize the marking points 400 provided on the scanning frame 100 to be tracked by the tracker. Thus, complicated replacement operations and alignment operations are avoided.

[0067] In this embodiment, with reference to Figure 5 and Figure 6 as shown, the scanning device 10 includes a mounting portion 300. The mounting portion 300 includes a detachable first connection unit and a second connection unit. The first connection unit is disposed on the scanning unit 210, and the second connection unit is disposed on the probe unit 220; the probe unit 220 and the scanning portion 200 are detachably connected through the mounting portion 300.

[0068] Based on the above settings, the probe unit 220 and the scanning portion 200 are detachably arranged. Therefore, when only one of the probe unit 220 or the scanning portion 200 is used, the other can be removed, thus avoiding the user having to hold the entire scanning device 10 for a long time. In addition, since the probe unit 220 and the scanning portion 200 are detachably arranged, one of the probe unit 220 or the scanning portion 200 can be replaced to adapt to different workpieces to be scanned. For example, when the hole depths of the workpieces to be scanned are different, different probe units 220 can be replaced to obtain probe heads 221 of different lengths, and thus the holes of the workpieces to be scanned can be scanned better.

[0069] In one embodiment, with reference to Figure 5 as shown, one of the scanning unit 210 and the probe unit 220 is provided with an inward depression, and the other is provided with an outward protrusion. The first connection unit is disposed in the inward depression, and the second connection unit is disposed on the outward protrusion; when the probe unit 220 is connected to the scanning unit 210, the outward protrusion is disposed in the inward depression, and the first connection unit is connected to the second connection unit.

[0070] Through the above settings of the inward depression and the outward protrusion, the user only needs to perform simple plugging and unplugging to disassemble or connect the scanning unit 210 and the probe unit 220. This process is simple and convenient, and can be operated smoothly.

[0071] In this embodiment, the first connection unit is an internal thread, the second connection unit is an external thread, and the internal thread and the external thread can be arranged to cooperate with each other. In other embodiments, the first connection unit is a first magnetic member, the second connection unit is a second magnetic member, and the first magnetic member can be arranged to attract the second magnetic member. It should be noted that the first magnetic member and the second magnetic member described in this embodiment can both be arranged as magnets or electromagnets. In addition, this application only lists the cooperation methods of the internal thread and the external thread and the cooperation methods of the first magnetic member and the second magnetic member, but as long as it is a design that makes the connection between the probe unit 220 and the scanning portion 200 more stable, it should be within the protection scope of this embodiment.

[0072] Through the above-mentioned cooperation mode of the internal thread and the external thread, or through the cooperation mode of the first magnetic member and the second magnetic member, the probe unit 220 and the scanning unit 200 can be more firmly connected, thereby preventing displacement between the probe unit 220 and the scanning unit 200 during operation, and thus obtaining more accurate three-dimensional data.

[0073] In this embodiment, the scanning device 10 may further be provided with a positioning portion (not shown in the figure). The positioning portion includes a first positioning unit and a second positioning unit. The first positioning unit is disposed on the first connection unit, and the second positioning unit is disposed on the second connection unit. When the probe unit 220 is connected to the scanning unit 210, the first connection unit is connected to the second connection unit, and the first positioning unit and the second positioning unit are correspondingly disposed. The positioning portion may be a positioning groove and a positioning protrusion, or may also be a positioning sensor, etc., as long as it can keep the positions consistent when the probe unit 220 is connected to the scanning unit 210, it is within the protection scope of this embodiment.

[0074] This positioning portion can keep the positions consistent when the probe unit 220 is connected to the scanning unit 210, so that the data obtained by the probe unit 220 and the scanning unit 210 will not be offset, and thus more accurate three-dimensional data can be obtained. Especially when the first connection unit is an internal thread and the second connection unit is an external thread, the tightening degree will affect the relative position of the probe unit 220 and the scanning unit 210. Therefore, setting the positioning portion here can well avoid position offset and thus obtain more accurate three-dimensional data.

[0075] In one embodiment, referring to Figure 3 and Figure 4 as shown, the probe unit 220 can be switched between a first position A1 and a second position A2. Among them, the first position A1 is that the probe unit 220 forms a first angle with the length direction X of the scanning unit 210, and the second position A2 is that the probe unit 220 forms a second angle with the length direction X of the scanning unit 210. Referring to Figure 3 as shown, the probe unit 220 is set at 0° with respect to the length direction X of the scanning unit 210. Referring to Figure 4 as shown, the probe unit 220 is set at 90° with respect to the length direction X of the scanning unit 210. Of course, Figure 3 、 Figure 4 This is only one way in this embodiment. As long as the length direction X of the probe unit 220 and the scanning unit 210 can be rotated to two different angular positions, it should be within the protection scope of this application.

[0076] Taking Figure 3 and Figure 4The angle formed by the probe unit 220 in the embodiment with the length direction X of the scanning unit 210 will be described. When the user measures the top of the object to be scanned, the probe unit 220 at the first position A1 in Figure 3 can be used for measurement. The probe unit 220 is located directly below the scanning unit 210, which facilitates the user to operate from the top. When the user measures the side of the object to be scanned, the probe unit 220 at the second position A2 in Figure 4 can be used for measurement. The probe unit 220 is located on the side of the scanning unit 210, which facilitates the user to operate from the side. The user can adjust the probe unit 220 to a position convenient for scanning according to different situations, thereby making the scanning operation by the user more convenient and smooth.

[0077] In one embodiment, the scanning unit 210 is provided with a receiving space (not shown in the figure), and the probe unit 220 can be switched between a retracted position and a use position; when the probe is in the retracted position, the probe unit 220 is located in the receiving space, and when the probe is in the use position, at least part of the probe unit 220 is located outside the receiving space.

[0078] Based on the above settings, when using the probe unit 220, the probe unit 220 can be taken out of the receiving space for scanning operations; when the probe unit 220 is not needed, the probe unit 220 can be placed in the receiving space, which can prevent the probe unit 220 from colliding with other components, and can also avoid blocking the emission of light by the emission device 211 of the scanning frame 100 and blocking the image acquisition by the imaging device 212.

[0079] In one embodiment, the scanning device 10 includes a control unit (not shown in the figure). The scanning unit 210 and the probe unit 220 are respectively connected to the control unit and are turned on or off under the control of the control unit. It should be noted that the control unit here includes components such as a PCB board and a chip located on the PCB board.

[0080] The scanning unit 210 and the probe unit 220 in this embodiment share a control unit, which can reduce the volume of the combination of the scanning unit 210 and the probe unit 220, and reduce the components to be used, thereby reducing the overall cost of the scanning unit 210 and the probe unit 220.

[0081] In this embodiment, the scanning unit 210 further includes a power supply unit (not shown in the figure). The power supply unit is respectively connected to the scanning unit 210 and the probe unit 220 to supply energy to the scanning unit 210 and the probe unit 220. The power supply unit can be a power supply component such as a battery.

[0082] Similarly, a power supply unit can supply energy to the scanning unit 210 and the probe unit 220 respectively, which can reduce the volume after the combination of the scanning unit 210 and the probe unit 220, thereby obtaining a smaller combined volume and reducing the overall cost of the scanning unit 210 and the probe unit 220.

[0083] The present application also provides a three-dimensional scanning assembly, including a tracker and the scanning device 10 described in the above embodiments. Since the three-dimensional scanning assembly includes the scanning device 10 described in the above embodiments, the three-dimensional scanning assembly also has the functions and advantages of the scanning device 10.

[0084] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of the present application is not limited to the precise structures described in the above embodiments and shown in the drawings; any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.

Claims

1. A scanning device, used to cooperate with a tracker to scan a workpiece, characterized in that: The scanning device comprises: A scanning frame, the scanning frame being used for being tracked by the tracker; The scanning part includes a scanning unit and a probe unit, and both the scanning unit and the probe unit are connected to the scanning frame, and the scanning unit and the probe unit cooperate to scan the object to be scanned.

2. The scanning device according to claim 1, characterized in that The scanning device comprises a mounting portion, wherein the mounting portion comprises a detachable first connecting unit and a second connecting unit, wherein the first connecting unit is arranged on the scanning unit, and the second connecting unit is arranged on the probe unit; The probe unit and the scanning unit are detachably connected via the mounting portion.

3. The scanning device according to claim 2, characterized in that: The scanning device further includes a positioning portion, the positioning portion includes a first positioning unit and a second positioning unit, the first positioning unit is arranged on the first connecting unit, and the second positioning unit is arranged on the second connecting unit. When the probe unit is connected to the scanning unit, the first connecting unit is connected to the second connecting unit, and the first positioning unit is arranged corresponding to the second positioning unit.

4. The scanning device according to claim 2, characterized in that: One of the scanning unit and the probe unit is provided with an inward recess, and the other is provided with an outward protrusion, the first connecting unit is provided in the inward recess, and the second connecting unit is provided on the outward protrusion; When the probe unit is connected to the scanning unit, the outward protrusion is disposed in the inward recess, and the first connecting unit is connected to the second connecting unit.

5. The scanning device according to claim 4, characterized in that: The first connection unit is an internal thread, the second connection unit is an external thread, and the internal thread and the external thread can be arranged in cooperation with each other; and / or, The first connection unit is a first magnetic member, the second connection unit is a second magnetic member, and the first magnetic member and the second magnetic member can be attracted to each other.

6. The scanning device according to claim 1, characterized in that: The probe unit can be switched between a first position and a second position. The first position is when the probe unit forms a first angle with the length direction of the scanning unit. The second position is when the probe unit forms a second angle with the length direction of the scanning unit.

7. The scanning device according to claim 1, characterized in that: The scanning unit is provided with a storage space, and the probe unit can be switched between a retracted position and a use position; When the probe is located at the retracted position, the probe unit is located in the storage space, and when the probe is located at the use position, at least a portion of the probe unit is located outside the storage space.

8. The scanning device according to claim 1, characterized in that: The scanning device comprises a control unit, the scanning unit and the probe unit are respectively connected to the control unit and are turned on or off under the control of the control unit; and / or The scanning device comprises a power supply unit, and the scanning unit and the probe unit are respectively connected to the power supply unit to supply energy to the scanning unit and the probe unit.

9. The scanning device according to claim 8, characterized in that: The scanning unit includes a transmitting device and a camera device located on both sides of the transmitting device, and the camera device receives the light emitted by the transmitting device; The probe unit includes a probe head. When the probe unit performs scanning, the probe head contacts the object to be scanned.

10. A three-dimensional scanning component, characterized in that: The invention comprises a tracker and a scanning device as described in any one of claims 1 to 9.

Images