Image acquisition device

Abstract

The present invention discloses an image acquisition device, comprising a base, an infrared thermal imaging module and a visible light image module. The infrared thermal imaging module and the visible light image module are both arranged on the base, and their shooting directions are the same. At least one of the infrared thermal imaging module and the visible light image module is rotatably arranged on the base. In the infrared thermal imaging module and the visible light image module, the rotation axis of the module rotatably connected to the base is parallel to the shooting direction. In the infrared thermal imaging module and the visible light image module, the module rotatably connected to the base comprises a rotation adjustment part, and the rotation adjustment part is located on the rotation axis of the module. The above solution can solve the problem of poor fusion when fusing infrared thermal imaging and visible light images in the related art.

Description

Technical Field

[0001] The present invention relates to the technical field of imaging devices, and particularly to an image acquisition device. Background Art

[0002] With the maturity of thermal imaging technology, thermal imaging technology has been widely applied in industries such as industry and medical treatment. However, the resolution of thermal imaging images is usually low, which is likely to cause problems such as image blurring and unclear detail resolution in the subjective consciousness of the human eye.

[0003] Currently, in the related art, a technology of fusing visible light images and thermal imaging images (abbreviated as dual-light fusion) has been proposed. By using the details of visible light to enhance the thermal imaging effect, the details and visualization degree of thermal imaging images can be improved. Since there will be errors during the assembly of the image acquisition module, there will also be deviations between the acquired thermal imaging images and visible light images. Therefore, when fusing thermal imaging images and visible light images, it is usually necessary to adjust and fuse the relative positions of visible light images and thermal imaging images through algorithms or calibration processes. However, due to the limited fusion adjustment ability of algorithms or calibration processes, there will be a problem of poor fusion between thermal imaging images and visible light images. Summary of the Invention

[0004] The present invention discloses an image acquisition device to solve the problem of poor fusion when fusing thermal imaging images and visible light images in the related art.

[0005] To solve the above technical problems, the present invention is implemented as follows:

[0006] The present application discloses an image acquisition device, including a base, a thermal imaging module, and a visible light image module. The thermal imaging module and the visible light image module are both arranged on the base, and their shooting directions are the same. At least one of the thermal imaging module and the visible light image module is rotatably arranged on the base. In the thermal imaging module and the visible light image module, the rotation axis of the module rotatably connected to the base is parallel to the shooting direction;

[0007] In the thermal imaging module and the visible light image module, the module rotatably connected to the base includes a rotation adjustment part, and the rotation adjustment part is located on the rotation axis of the module.

[0008] The technical solution adopted by the present invention can achieve the following technical effects:

[0009] In the image acquisition device disclosed in the embodiments of the present application, at least one of the thermal imaging module and the visible light image module is rotatably provided on the base, and the shooting directions of the thermal imaging module and the visible light image module are the same, so that it is convenient for the thermal imaging module and the visible light image module to shoot the same object to be photographed. In the thermal imaging module and the visible light image module, the module rotatably connected to the base is provided with a rotation adjustment part, and the rotation axis of the module rotatably connected to the base is parallel to the shooting direction. When the thermal imaging module and the visible light image module shoot the same object to be photographed, the corresponding thermal imaging module or visible light image module can be rotated around its own rotation axis in a plane perpendicular to its own rotation axis through the rotation adjustment part. Therefore, when there is an angle deviation after the centers of the thermal imaging image and the visible light image coincide, the thermal imaging module or the visible light image module can be adjusted to rotate through the rotation adjustment part, so as to realize the adjustment of the angle when the thermal imaging image or the visible light image is fused. Therefore, it is not necessary to adjust the angles of the thermal imaging image and the visible light image through algorithms or calibration processes, which can reduce the power consumption of fusion through algorithms or calibration processes, and can also avoid the problem of poor fusion when fusing angles through algorithms or calibration processes, thereby improving the fusion effect of the thermal imaging image and the visible light image. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the image acquisition device disclosed in the embodiments of the present invention from the first perspective;

[0011] Figure 2 is a schematic diagram of the image acquisition device disclosed in the embodiments of the present invention from the second perspective;

[0012] Figure 3 is an exploded schematic diagram of the image acquisition device disclosed in the embodiments of the present invention;

[0013] Figure 4 is a schematic diagram of the structure of the adjustment bracket disclosed in the embodiments of the present invention.

[0014] DESCRIPTION OF THE REFERENCE NUMERALS:

[0015] 100 - base, 101 - mounting hole, 102 - first mounting groove, 1021 - first avoidance hole, 103 - second mounting groove, 1031 - second avoidance hole,

[0016] 200 - thermal imaging module,

[0017] 300 - visible light image module, 310 - rotation adjustment part, 311 - cylindrical section, 3111 - limiting surface, 312 - flat section, 3121 - adjustment tool mating groove, 320 - module body, 330 - adjustment bracket, 331 - third avoidance hole,

[0018] 410 - Locking nut, 420 - Elastic gasket, 430 - Flat gasket,

[0019] 510 - First flexible electrical connector, 520 - Second flexible electrical connector. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The technical solutions disclosed in each embodiment of the present invention will be described in detail below with reference to the drawings.

[0022] Please refer to Figures 1 to 4 , an embodiment of the present invention discloses an image acquisition device, including a base 100, an infrared thermal imaging module 200 and a visible light image module 300. The base 100 can provide a mounting foundation for some other components of the image acquisition module.

[0023] The infrared thermal imaging module 200 is a module capable of acquiring infrared thermal imaging images, and the visible light image module 300 is a module capable of acquiring visible light images. Both the infrared thermal imaging module 200 and the visible light image module 300 are provided on the base 100, and their shooting directions are the same, that is, the infrared thermal imaging module 200 and the visible light image module 300 shoot in the same direction.

[0024] At least one of the infrared thermal imaging module 200 and the visible light image module 300 is rotatably provided on the base 100. In the infrared thermal imaging module 200 and the visible light image module 300, the rotation axis of the module rotatably connected to the base 100 is parallel to the shooting direction. When the infrared thermal imaging module 200 or the visible light image module 300 rotates around the rotation axis, the infrared thermal imaging module 200 and the visible light image module 300 can rotate around the rotation axis in a plane perpendicular to the rotation axis.

[0025] In the infrared thermal imaging module 200 and the visible light image module 300, the module rotatably connected to the base 100 includes a rotation adjustment part 310, and the rotation adjustment part 310 is located on the rotation axis of the module. In the infrared thermal imaging module 200 and the visible light image module 300, the module rotatably connected to the base 100 can rotate around the rotation axis through the adjustment of the rotation adjustment part 310.

[0026] It should be noted that the thermal imaging module 200 and the visible light image module 300 capture the same object to be photographed. The thermal imaging module 200 obtains a thermal imaging image, and the visible light image module 300 obtains a visible light image. There is a mapping relationship between the thermal imaging image and the visible light image, and there is a corresponding relationship between the pixels of the thermal imaging image and the pixels of the visible light image. The thermal imaging image and the visible light image can be transmitted to the display of the image acquisition device for display. The thermal imaging image and the visible light image can be cropped through the software of the image acquisition device to ensure that the thermal imaging image and the visible light image have the same size. The thermal imaging image and the visible light image are adjusted for fusion vertically and horizontally through the software so that the centers of the thermal imaging image and the visible light image coincide.

[0027] When there is an angular deviation after the centers of the thermal imaging image and the visible light image coincide, the module rotatably connected to the base 100 is adjusted by the adjusting part 310 so that the module rotatably connected to the base 100 rotates around the rotation axis, so that the line connecting any pixel points A and B in the thermal imaging image is parallel or coincident with the line connecting pixel points C and D in the visible light image. Pixel point A and pixel point C have a mapping relationship, and pixel point B and pixel point D have a mapping relationship. After the line connecting pixel points A and B is parallel or coincident with the line connecting pixel points C and D, the thermal imaging image and the visible light image are further adjusted vertically and horizontally through the software, thereby realizing the fusion of the thermal imaging image and the visible light image.

[0028] It should be further noted that it is relatively easy to realize the vertical and horizontal fusion adjustment of the thermal imaging image and the visible light image through algorithms or calibration processes. However, when adjusting the fusion of the angular deviation existing in the thermal imaging image and the visible light image through algorithms or calibration processes, it is a complex processing process. Due to the limited fusion adjustment ability of algorithms or calibration processes, there will be a problem of poor fusion between the thermal imaging image and the visible light image.

[0029] The image acquisition device disclosed in the embodiment of the present application rotatably arranges at least one of the thermal imaging module 200 and the visible light image module 300 on the base 100, and the shooting directions of the thermal imaging module 200 and the visible light image module 300 are the same, so as to facilitate the thermal imaging module 200 and the visible light image module 300 to capture the same object to be photographed. By arranging a rotation adjustment part 310 on the module rotatably connected to the base 100 in the thermal imaging module 200 and the visible light image module 300, and the rotation axis of the module rotatably connected to the base 100 is parallel to the shooting direction, when the thermal imaging module 200 and the visible light image module 300 capture the same object to be photographed, the corresponding thermal imaging module 200 or visible light image module 300 can be rotated around the rotation axis in a plane perpendicular to the rotation axis through the rotation adjustment part 310.

[0030] When there is an angular deviation after the centers of the thermal imaging image and the visible light image coincide, the thermal imaging module 200 or the visible light image module 300 can be rotated by rotating the adjustment part 310, so as to realize the adjustment of the angle of the thermal imaging image or the visible light image during fusion. Thus, there is no need to adjust the angles of the thermal imaging image and the visible light image through algorithms or calibration processes, which can reduce the power consumption of fusion through algorithms or calibration processes, and can also avoid the problem of poor fusion when fusing angles through algorithms or calibration processes, thereby improving the fusion effect of the thermal imaging image and the visible light image.

[0031] In some embodiments, in the thermal imaging module 200 and the visible light image module 300, the imaging center of the module rotatably connected to the base 100 can be located outside the rotation axis of the module. However, for the convenience of adjusting the fusion of the thermal imaging image and the visible light image, optionally, in the thermal imaging module 200 and the visible light image module 300, the imaging center of the module rotatably connected to the base 100 can be located on the rotation axis of the module.

[0032] The image acquisition device disclosed in the embodiments of the present application makes the imaging center of the module rotatably connected to the base 100 located on the rotation axis of the module, so that the module rotatably connected to the base 100 can be adjusted by the rotation adjustment part 310, and the module can rotate around the imaging center in a plane perpendicular to the rotation axis, thereby making the corresponding image captured by the module rotate around the center point of the image, making it easier to adjust the fusion of the thermal imaging image and the visible light image.

[0033] Optionally, the base 100 can be provided with an installation hole 101, and the rotation adjustment part 310 can be arranged on the back side of the thermal imaging module 200 or the visible light image module 300 and rotatably cooperate with the installation hole 101, so that the thermal imaging module 200 or the visible light image module 300 rotatably cooperates with the base 100.

[0034] The image acquisition device disclosed in the embodiments of the present application has an installation hole 101 provided in the base 100, and the rotation adjustment part 310 is arranged on the back side of the thermal imaging module 200 or the visible light image module 300, so that the thermal imaging module 200 or the visible light image module 300 can be rotatably connected to the installation hole 101 through the rotation adjustment part 310, thereby realizing the installation of the thermal imaging module 200 or the visible light image module 300. Moreover, the rotation adjustment part 310 and the installation hole 101 rotate in cooperation, making the thermal imaging module 200 or the visible light image module 300 more stable when rotating relative to the base 100. The rotation adjustment part not only plays the role of rotational connection, but also can adjust the thermal imaging module 200 or the visible light image module 300, making the structure of the entire image acquisition device simpler.

[0035] In an alternative embodiment, the rotation adjustment part 310 can be a columnar threaded part. The image acquisition device can further include a lock nut 410. The part of the rotation adjustment part 310 passing through the mounting hole 101 can be in threaded cooperation with the lock nut 410 to connect the base 100 with the visible light image module 300 or the thermal imaging module 200.

[0036] In the image acquisition device disclosed in the embodiments of the present application, by setting the rotation adjustment part 310 as a columnar threaded part, a part of the rotation adjustment part 310 can pass through the mounting hole 101 and be in threaded cooperation with the lock nut 410, so that the visible light image module 300 or the thermal imaging module 200 is connected to the base 100. Thus, the rotation adjustment part 310 is both a component for adjusting the relative rotation of the visible light image module 300 or the thermal imaging module 200 with respect to the base 100, and can also be used as a component for connecting the visible light image module 300 or the thermal imaging module 200 to the base 100, making the rotation adjustment part 310 serve two purposes.

[0037] In order to enable the visible light image module 300 or the thermal imaging module 200 to stably maintain the adjusted angle after the rotation adjustment part 310 adjusts the visible light image module 300 or the thermal imaging module 200, optionally, the image acquisition device can further include an elastic gasket 420. The elastic gasket 420 can be sleeved on the rotation adjustment part 310, and the elastic gasket 420 is elastically disposed between the lock nut 410 and the base 100.

[0038] In the image acquisition device disclosed in the embodiments of the present application, by setting the elastic gasket 420, the elastic gasket 420 can be sleeved on the rotation adjustment part 310, and the elastic gasket 420 is elastically disposed between the lock nut 410 and the base 100. Thus, after the rotation adjustment part 310 adjusts the visible light image module 300 or the thermal imaging module 200, the elastic gasket 420 can drive the visible light image module 300 or the thermal imaging module 200 to stably maintain the adjusted angle.

[0039] Optionally, the image acquisition device can further include a flat gasket 430. The rotation adjustment part 310 can have a limiting surface 3111. The flat gasket 430 can be sleeved on the rotation adjustment part 310 and clamped between the lock nut 410 and the limiting surface 3111. The elastic gasket 420 can be elastically clamped between the flat gasket 430 and the base 100.

[0040] In the image acquisition device disclosed in the embodiments of the present application, by providing a flat gasket 430 and setting a limiting surface 3111 on the rotation adjustment part 310, the flat gasket 430 can be sleeved on the rotation adjustment part 310 and clamped between the locking nut 410 and the limiting surface 3111. The elastic gasket 420 can be elastically clamped between the flat gasket 430 and the base 100. The flat gasket 430 can not only ensure that the circumferential compression amount of the elastic gasket 420 is relatively consistent when the elastic gasket 420 is compressed, but also play a role in limiting the movement of the locking nut 410, avoiding excessive or insufficient movement when the locking nut 410 is in threaded engagement with the columnar threaded part.

[0041] Optionally, the rotation adjustment part 310 may include a cylindrical section 311 and a flat section 312. The first end of the cylindrical section 311 may be adjacent to the mounting hole 101, and the second end of the cylindrical section 311 connected to the flat section 312 may have a limiting surface 3111; the elastic gasket 420 may be sleeved on the cylindrical section 311, and the flat gasket 430 may be sleeved on the flat section 312.

[0042] In the image acquisition device disclosed in the embodiments of the present application, by setting the rotation adjustment part 310 to include a structure of a cylindrical section 311 and a flat section 312, the first end of the cylindrical section 311 can be adjacent to the mounting hole 101, the second end of the cylindrical section 311 connected to the flat section 312 can have a limiting surface 3111, the elastic gasket 420 can be sleeved on the cylindrical section 311, and the flat gasket 430 is sleeved on the flat section 312. When the rotation adjustment part 310 rotates, the flat gasket 430 rotates together under the limiting action of the flat section 312, so that the locking nut 410 can be driven to rotate together under the action of friction. When the rotation adjustment part 310 adjusts the visible light image module 300 or the thermal imaging module 200, the locking force of the locking nut 410 on the visible light image module 300 or the thermal imaging module 200 remains unchanged.

[0043] Optionally, an adjustment tool mating groove 3121 may be provided at the end of the rotation adjustment part 310. By providing the adjustment tool mating groove 3121, it is convenient to adjust the visible light image module 300 or the thermal imaging module 200 through the rotation adjustment part 310.

[0044] Under normal circumstances, the visible light image module 200 is an independent module. To facilitate the fusion of visible light images and thermal imaging images, optionally, the thermal imaging module 200 may be fixed on the base 100, and the visible light image module 300 is rotatably provided on the base 100. The visible light image module 300 is adjusted to rotate around the rotation axis through the rotation adjustment part 310, so as to facilitate the fusion of visible light images and thermal imaging images.

[0045] Since both the thermal imaging module 200 and the visible light image module 300 are precision devices, in order to protect the thermal imaging module 200 and the visible light image module 300, optionally, in the thermal imaging module 200 and the visible light image module 300, the module rotatably connected to the base 100 may include a module body 320 and an adjustment bracket 330. The module body 320 may be installed within the adjustment bracket 330. The adjustment bracket 330 may be connected to the rotation adjustment portion 310. The adjustment bracket 330 can drive the module body 320 to rotate as the rotation adjustment portion 310 rotates.

[0046] In the image acquisition device disclosed in the embodiments of the present application, by setting the module rotatably connected to the base 100 in the thermal imaging module 200 and the visible light image module 300 as the module body 320 and the adjustment bracket 330, the module body 320 can be installed within the adjustment bracket 330, so that the adjustment bracket 330 can protect the module body 320. The adjustment bracket 330 is connected to the rotation adjustment portion 310, which can prevent the rotation adjustment portion 310 from being directly connected to the module body 320 and causing damage to the module body 320.

[0047] Optionally, the adjustment bracket 330 may be provided with a third avoidance hole 331. The image acquisition device may further include a flexible electrical connector. The flexible electrical connector can pass through the third avoidance hole and be electrically connected to the module body 320. By providing the third avoidance hole 331 in the adjustment bracket 330, it is convenient to realize the electrical connection between the flexible electrical connector and the module body 320, and the adjustment bracket 330 can also shield the part of the flexible electrical connector extending into the adjustment bracket 330.

[0048] In an optional embodiment, the base 100 may be provided with a first installation groove 102 and a second installation groove 103. The thermal imaging module 200 may be disposed within the first installation groove 102, and the visible light image module 300 may be disposed within the second installation groove 103. A gap may be left between the module and the inner wall of the first installation groove 102 or the second installation groove 103 to allow the maximum rotation angle of the module relative to the base 100 in the first direction to be 10° and the maximum rotation angle in the second direction to be 10°, where the first direction is opposite to the second direction.

[0049] In the image acquisition device disclosed in the embodiments of the present application, by providing the first installation groove 102 and the second installation groove 103 in the base 100, the thermal imaging module 200 can be disposed within the first installation groove 102, and the visible light image module 300 can be disposed within the second installation groove 103, so that the thermal imaging module 200 and the visible light image module 300 are installed in a sunken manner, which is more conducive to the compactness of the structure and can protect the thermal imaging module 200 and the visible light image module 300.

[0050] Optionally, the image acquisition device may further include a first flexible electrical connector 510 and a second flexible electrical connector 520. A first avoidance hole 1021 may be formed in the side wall of the first installation groove 102, and a second avoidance hole 1031 may be formed in the side wall of the second installation groove 103. The first end of the first flexible electrical connector 510 may be electrically connected to the thermal imaging module 200, the second end of the first flexible electrical connector 510 may pass through the first avoidance hole 1021, the first end of the second flexible electrical connector 520 may be electrically connected to the visible light image module 300, and the second end of the second flexible electrical connector 520 may pass through the second avoidance hole 1031.

[0051] In the image acquisition device disclosed in the embodiments of the present application, by forming a first avoidance hole 1021 in the side wall of the first installation groove 102 and a second avoidance hole 1031 in the side wall of the second installation groove 103, it is beneficial to arrange the first flexible electrical connector 510 and the second flexible electrical connector 520. Thus, the first end of the first flexible electrical connector 510 can be electrically connected to the thermal imaging module 200, the second end of the first flexible electrical connector 510 can pass through the first avoidance hole 1021, the first end of the second flexible electrical connector 520 can be electrically connected to the visible light image module 300, and the second end of the second flexible electrical connector 520 can pass through the second avoidance hole 1031.

[0052] In the above embodiments of the present invention, the differences between the embodiments are mainly described. As long as the different optimization features between the embodiments are not contradictory, they can be combined to form a more optimal embodiment. For the sake of brevity, they will not be elaborated here.

[0053] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can make many forms without departing from the spirit and scope of the present invention as protected by the claims, and all of them fall within the protection scope of the present invention.

Claims

1. An image acquisition device, characterized in that, it includes a base (100), an infrared thermal imaging module (200) and a visible light image module (300). The infrared thermal imaging module (200) and the visible light image module (300) are both arranged on the base (100), and their shooting directions are the same. At least one of the infrared thermal imaging module (200) and the visible light image module (300) is rotatably arranged on the base (100). Among the infrared thermal imaging module (200) and the visible light image module (300), the rotation axis of the module rotatably connected to the base (100) is parallel to the shooting direction; Among the infrared thermal imaging module (200) and the visible light image module (300), the module rotatably connected to the base (100) includes a rotation adjustment part (310). The rotation adjustment part (310) is located on the rotation axis of the module. When performing dual-light fusion on the infrared thermal imaging image obtained by the infrared thermal imaging module (200) and the visible light image obtained by the visible light image module (300), the rotation adjustment part (310) is used to adjust the rotation of the infrared thermal imaging module (200) or the visible light image module (300) to improve the fusion effect of the infrared thermal imaging image and the visible light image; The base (100) is provided with a mounting hole (101). The rotation adjustment part (310) is arranged on the back side of the infrared thermal imaging module (200) or the visible light image module (300) and is rotatably matched with the mounting hole (101); The rotation adjustment part (310) is a columnar threaded part. The image acquisition device further includes a locking nut (410). The part of the rotation adjustment part (310) passing through the mounting hole (101) is threadedly matched with the locking nut (410) to connect the base (100) with the visible light image module (300) or the infrared thermal imaging module (200).

2. The image acquisition device according to claim 1, characterized in that, among the infrared thermal imaging module (200) and the visible light image module (300), the imaging center of the module rotatably connected to the base (100) is located on the rotation axis of the module.

3. The image acquisition device according to claim 1, characterized in that, the image acquisition device further includes an elastic gasket (420). The elastic gasket (420) is sleeved on the rotation adjustment part (310), and the elastic gasket (420) is elastically arranged between the locking nut (410) and the base (100).

4. The image acquisition device according to claim 3, characterized in that, The image acquisition device further includes a flat gasket (430). The rotation adjustment part (310) has a limit surface (3111). The flat gasket (430) is sleeved on the rotation adjustment part (310) and is clamped between the lock nut (410) and the limit surface (3111). The elastic gasket (420) is elastically clamped between the flat gasket (430) and the base (100).

5. The image acquisition device according to claim 4, wherein, the rotation adjustment part (310) includes a cylindrical section (311) and a flat section (312). A first end of the cylindrical section (311) is adjacent to the mounting hole (101), and a second end of the cylindrical section (311) connected to the flat section (312) has the limit surface (3111); the elastic gasket (420) is sleeved on the cylindrical section (311), and the flat gasket (430) is sleeved on the flat section (312).

6. The image acquisition device according to claim 1, wherein, an adjustment tool mating groove (3121) is formed at an end of the rotation adjustment part (310).

7. The image acquisition device according to claim 1, wherein, the thermal imaging module (200) is fixed on the base (100), and the visible light image module (300) is rotatably arranged on the base (100).

8. The image acquisition device according to claim 1, wherein, in the thermal imaging module (200) and the visible light image module (300), the module rotatably connected to the base (100) includes a module body (320) and an adjustment bracket (330). The module body (320) is installed in the adjustment bracket (330). The adjustment bracket (330) is connected to the rotation adjustment part (310). The adjustment bracket (330) can drive the module body (320) to rotate as the rotation adjustment part (310) rotates.

9. The image acquisition device according to claim 8, wherein, the adjustment bracket (330) is provided with a third avoidance hole (331). The image acquisition device further includes a flexible electrical connector. The flexible electrical connector passes through the third avoidance hole and is electrically connected to the module body (320).

10. The image acquisition device according to claim 1, wherein, the base (100) is provided with a first installation groove (102) and a second installation groove (103). The thermal imaging module (200) is arranged in the first installation groove (102), and the visible light image module (300) is arranged in the second installation groove (103). A gap is left between the module and the inner wall of the first installation groove (102) or the second installation groove (103) to allow the maximum rotation angle of the module relative to the base (100) around the rotation axis to be 10° in a first direction and 10° in a second direction, and the first direction is opposite to the second direction.

11. The image acquisition device according to claim 10, characterized in that, the image acquisition device further includes a first flexible electrical connector (510) and a second flexible electrical connector (520), a first avoidance hole (1021) is formed in the side wall of the first installation groove (102), a second avoidance hole (1031) is formed in the side wall of the second installation groove (103), a first end of the first flexible electrical connector (510) is electrically connected to the thermal imaging module (200), a second end of the first flexible electrical connector (510) passes through the first avoidance hole (1021), a first end of the second flexible electrical connector (520) is electrically connected to the visible light image module (300), and a second end of the second flexible electrical connector (520) passes through the second avoidance hole (1031).

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