A modular image acquisition system and an image acquisition method

Abstract

The present invention relates to the technical field of image acquisition, and specifically relates to a modular image acquisition system and an image acquisition method, which solve the problems in the existing image acquisition process that when multiple lenses are replaced and used, the replacement is troublesome, the focal length of the lenses needs to be finely adjusted again, which affects the image acquisition efficiency, and it is not convenient to maintain the use safety of multiple lenses. The system includes a positioning and locking connection mechanism and a quick switching mechanism. The front end of the positioning and locking connection mechanism is provided with a quick switching mechanism, and the bottom end of the positioning and locking connection mechanism is provided with a multi-directional adjustment and support mechanism. The positioning and locking connection mechanism includes an installation platform, a positioning frame is fixedly installed at the front end of the upper surface of the installation platform, and an image transmission port is arranged in the middle of the front surface of the positioning frame. By quickly switching and finely adjusting multiple lenses during the image acquisition process, the present invention can effectively improve the image acquisition efficiency and is convenient for maintaining the stable and safe use of the lenses.

Description

Technical Field

[0001] The present invention relates to the technical field of image acquisition, and specifically provides a modular image acquisition system and an image acquisition method. Background Art

[0002] Image acquisition is a means of obtaining real-time image information through modern technologies. In daily life, the biomedical field, aerospace, and other fields, image acquisition plays an important role. Its speed and quality directly affect the overall effect of the product. Traditional image acquisition methods mainly use image acquisition cards or video capture cards to digitize and store the analog video signals of CCD (Charge Coupled Device) cameras, and then send them to a computer for processing. During the process of portrait acquisition, the lens needs to be replaced.

[0003] During the existing image acquisition process, when multiple lenses are replaced and used, the replacement is troublesome, the focal length of the lens needs to be finely adjusted again, which affects the image acquisition efficiency, and it is not convenient to maintain the use safety of multiple lenses. Therefore, it does not meet the existing requirements, and for this reason, we propose a modular image acquisition system and an image acquisition method. Summary of the Invention

[0004] The purpose of the present invention is to provide a modular image acquisition system and an image acquisition method to solve the problems raised in the above background art that during the existing image acquisition process, when multiple lenses are replaced and used, the replacement is troublesome, the focal length of the lens needs to be finely adjusted again, which affects the image acquisition efficiency, and it is not convenient to maintain the use safety of multiple lenses.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A modular image acquisition system includes a positioning and locking connection mechanism and a quick switching mechanism. The front end of the positioning and locking connection mechanism is equipped with a quick switching mechanism, and the bottom end of the positioning and locking connection mechanism is equipped with a multi-directional adjustment support mechanism. The positioning and locking connection mechanism includes an installation platform. A positioning frame is fixedly installed at the front end of the upper surface of the installation platform. An image transmission port is provided in the middle of the front surface of the positioning frame. A second locking knob is installed on one side of the positioning frame.

[0006] The quick switching mechanism includes an installation sleeve plate. A transparent protection plate is provided on the front surface of the installation sleeve plate. A plurality of positioning grooves are provided on one side of the installation sleeve plate. Sealing pieces are fixedly installed at both the upper and lower ends of the installation sleeve plate. Two guiding sliding plates are installed inside the installation sleeve plate, and a plurality of lens units are installed between the two guiding sliding plates.

[0007] The lens unit includes a positioning sleeve plate. A positioning connection plate is installed on one side of the positioning sleeve plate. A lens installation sleeve and an adjustment gear are rotatably connected inside the positioning sleeve plate.

[0008] Preferably, the multi-directional adjustment support mechanism includes a triangular support base. Ball head bearings are fixedly installed at the three end corners of the lower end face of the triangular support base. Support legs are connected to the outside of the bottom end of the ball head bearings by threads. Two splicing seats are fixedly installed in the middle of the upper end face of the triangular support base. An installation angle plate is fixedly installed on one side of the splicing seat. A first locking knob is installed inside the installation angle plate. An anti-slip connection pad is provided at one end of the first locking knob. A spherical adjustment seat is movably installed between the two splicing seats.

[0009] Preferably, the positioning and locking connection mechanism further includes an image acquisition box fixedly connected to the installation platform. A display is fixedly installed at the rear end of the image acquisition box. A direction adjustment handle is fixedly provided on the upper end face of the installation platform on one side of the image acquisition box. An adjustment threaded sleeve is movably installed at the front end of the image acquisition box.

[0010] Preferably, the upper end of the spherical adjustment seat is fixedly connected to the installation platform. The two splicing seats, installation angle plates, first locking knobs and anti-slip connection pads are symmetrically installed relative to the spherical adjustment seat. One end of the first locking knob penetrates through the installation angle plate and the splicing seat and is in close contact with the spherical adjustment seat through the anti-slip connection pad. The installation angle plate and the splicing seat are connected by threads.

[0011] Preferably, a camera is provided inside the image acquisition box. The camera is electrically connected to the display. The image acquisition box is connected to the positioning frame through the adjustment threaded sleeve in a penetrating manner. The front end of the adjustment threaded sleeve is inserted into the inside of the positioning frame. The adjustment threaded sleeve and the positioning frame are connected by threads.

[0012] Preferably, the image acquisition box, the positioning frame, the adjustment threaded sleeve and one of the lens installation sleeves are coaxial. The adjustment threaded sleeve slides linearly along the axis of the positioning frame.

[0013] Preferably, the installation sleeve plate is inserted into the inside of the positioning frame. One end of the second locking knob penetrates through the positioning frame and is inserted into the inside of one of the positioning grooves. The positioning frame and the installation sleeve plate are locked and installed through the second locking knob.

[0014] Preferably, the installation sleeve plate is fixedly connected to both guiding sliding plates. A plurality of lens units are linearly arranged along the side of the guiding sliding plate. A sliding groove is provided on one side of the guiding sliding plate. Both sides of the positioning sleeve plate are inserted into the inside of the sliding groove. The installation sleeve plate and a plurality of positioning sleeve plates are connected by two blocking pieces.

[0015] Preferably, the positioning sleeve plate is snap-fitted and installed with the positioning connecting plate, the adjusting gear is rotatably connected to the positioning sleeve plate through a pin, a transmission gear ring is provided on the outer side of the middle of the lens mounting sleeve, the adjusting gear is meshed with the transmission gear ring through teeth, image acquisition lenses are provided on the inner sides of a plurality of the lens mounting sleeves, and the focal lengths of the plurality of image acquisition lenses increase sequentially from bottom to top.

[0016] A method for collecting images of a modular image acquisition system includes the following steps:

[0017] S1: Place the camera for image acquisition inside the image acquisition box and fixedly connect it to the installation platform through the image acquisition box, so that the image input end of the camera is coaxial with the image acquisition box, the positioning frame, and the adjusting threaded sleeve. The triangular support base is stably supported through a ball head bearing and a support leg, so that the triangular support base can position and install the spherical adjusting seat through two splicing seats;

[0018] S2: Specifically, one end of the first locking knob penetrates through the mounting angle plate and the splicing seat and is connected to the spherical adjusting seat through an anti-slip connecting pad, and the first locking knob is threadedly connected to the mounting angle plate. By rotating the first locking knob, the two first locking knobs can lock the spherical adjusting seat through the anti-slip connecting pad, thereby facilitating quick fixing operations when the spherical adjusting seat is adjusted at any angle inside the two splicing seats, effectively meeting the requirement that the spherical adjusting seat drives the camera to perform stable image acquisition at different angles;

[0019] S3: The camera is electrically connected to the display. When using the camera to acquire images, adjust the mounting sleeve plate. Specifically, a plurality of positioning grooves are provided on one side of the mounting sleeve plate. One end of the second locking knob penetrates through the positioning frame and is inserted into the inside of one of the positioning grooves. By vertically adjusting the mounting sleeve plate inside the positioning frame and locking and positioning it through the second locking knob, it is convenient to realize the coaxial switching between the adjusting threaded sleeve and a plurality of lens mounting sleeves;

[0020] S4: Then rotate the adjusting threaded sleeve. The adjusting threaded sleeve is threadedly connected to the positioning frame, so that the adjusting threaded sleeve penetrates through the positioning frame and is inserted into the inside of the rear end of one of the lens mounting sleeves, realizing the through connection between the image acquisition box and the lens mounting sleeve through the adjusting threaded sleeve. Image acquisition lenses are provided on the inner sides of a plurality of the lens mounting sleeves, and the focal lengths of the plurality of image acquisition lenses increase sequentially from bottom to top. Therefore, the camera can perform image acquisition operations through the image acquisition lenses and under the protection of the transparent protection plate. By driving a plurality of lens mounting sleeves and the positioning frame to switch through the mounting sleeve plate, the requirements of different focal lengths of the camera can be met;

[0021] S5: The adjusting gear is meshed with the transmission gear ring provided in the middle of the lens mounting sleeve, and the lens can be rotationally adjusted through the lens mounting sleeve by turning the adjusting gear, so that the focal length of the image acquisition can be fine-tuned. During the image acquisition process, the picture can be displayed in real time through the display. The mounting plate protects and installs multiple lens units through two sealing pieces, and the multiple lens units can be easily replaced and stored when the mounting plate is detached from the mounting plate through the two sealing pieces.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention places a camera for image acquisition on the inner side of an image acquisition box and fixes the camera to the mounting platform through the image acquisition box. When the first locking knob is rotated, the spherical adjustment seat can be locked through the anti-slip connection pad, so that the spherical adjustment seat can be quickly fixed when the spherical adjustment seat is adjusted to any angle on the inner side of the two splicing seats, effectively meeting the requirement that the spherical adjustment seat drives the camera to perform stable image acquisition at different angles through the mounting platform, and the mounting sleeve is vertically adjusted on the inner side of the positioning frame and locked and positioned through the second locking knob, so that the coaxial switching of the adjustment thread sleeve and multiple lens mounting sleeves can be easily achieved;

[0024] 2. The present invention realizes the through-connection between the image acquisition box and the lens mounting sleeve by adjusting the threaded sleeve through the positioning frame and inserting the threaded sleeve into the inner side of the rear end of one of the lens mounting sleeves. Image acquisition lenses are provided on the inner sides of the multiple lens mounting sleeves, and the focal lengths of the multiple image acquisition lenses increase successively from bottom to top. Then, the camera can acquire images through the image acquisition lenses and under the protection of the transparent protective plate. The different focal length requirements of the camera can be met by driving the multiple lens mounting sleeves and the positioning frame to switch through the mounting sleeve. The lens can be rotated and adjusted through the lens mounting sleeve by turning the adjusting gear, so as to achieve fine adjustment of the focal length of image acquisition. When the lens is detached from the mounting sleeve by two sealing pieces, the multiple lens units can be easily replaced and stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 A top view of the present invention as a whole;

[0027] Figure 3 It is a structural schematic diagram of the positioning and locking connection mechanism of the present invention;

[0028] Figure 4 It is a rear side view of the positioning and locking connection mechanism of the present invention;

[0029] Figure 5 Schematic cross-sectional structure diagram of the positioning and locking connection mechanism of the present invention;

[0030] Figure 6 Schematic cross-sectional structure diagram of the multi-directional adjustment support mechanism of the present invention;

[0031] Figure 7 For the present invention Figure 5 Enlarged structure diagram of area A in;

[0032] Figure 8 Partial cross-sectional structure diagram of the quick switching mechanism of the present invention;

[0033] Figure 9 Exploded structure diagram of the quick switching mechanism of the present invention;

[0034] Figure 10 Schematic cross-sectional structure diagram of the lens unit of the present invention.

[0035] In the figure: 1. Multi-directional adjustment support mechanism; 101. Support leg; 102. Ball head bearing; 103. Triangular support base; 104. Splicing seat; 105. Mounting angle plate; 106. First locking knob; 107. Spherical adjustment seat; 108. Anti-slip connection pad; 2. Positioning and locking connection mechanism; 201. Mounting platform; 202. Display; 203. Image acquisition box; 204. Direction adjustment handle; 205. Positioning frame; 206. Image transmission port; 207. Adjusting thread sleeve; 208. Second locking knob; 3. Quick switching mechanism; 301. Mounting sleeve plate; 302. Transparent protection plate; 303. Plugging piece; 304. Positioning sleeve plate; 305. Lens mounting sleeve; 306. Guide slide plate; 307. Adjusting gear; 308. Positioning connection plate; 309. Positioning groove. Detailed implementation manners

[0036] 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.

[0037] Please refer to Figures 1 to 6 , an embodiment provided by the present invention: A modular image acquisition system includes a positioning and locking connection mechanism 2 and a quick switching mechanism 3. A quick switching mechanism 3 is installed at the front end of the positioning and locking connection mechanism 2, and a multi-directional adjustment support mechanism 1 is installed at the bottom end of the positioning and locking connection mechanism 2. The multi-directional adjustment support mechanism 1 includes a triangular support base 103. Ball head bearings 102 are fixedly installed at the three end corners of the lower end surface of the triangular support base 103. The outer sides of the bottoms of the ball head bearings 102 are threadedly connected with support legs 101, and the support legs 101 facilitate the stable support of the whole;

[0038] In the middle of the upper end surface of the triangular support base 103, two splicing seats 104 are fixedly installed. On one side of the splicing seat 104, a mounting angle plate 105 is fixedly installed. Inside the mounting angle plate 105, a first locking knob 106 is installed. One end of the first locking knob 106 is provided with an anti-slip connecting pad 108. A spherical adjusting seat 107 is movably installed between the two splicing seats 104. The two splicing seats 104, the mounting angle plate 105, the first locking knob 106, and the anti-slip connecting pad 108 are symmetrically installed relative to the spherical adjusting seat 107. One end of the first locking knob 106 penetrates through the mounting angle plate 105 and the splicing seat 104 and is in contact with the spherical adjusting seat 107 through the anti-slip connecting pad 108. The mounting angle plate 105 is threadedly connected to the splicing seat 104. When the first locking knob 106 rotates, the spherical adjusting seat 107 can be locked through the anti-slip connecting pad 108, thereby facilitating the quick fixing operation when the spherical adjusting seat 107 is adjusted at any angle inside the two splicing seats 104.

[0039] Please refer to Figures 3 to 8 , the positioning and locking connection mechanism 2 includes a mounting platform 201. The upper end of the spherical adjusting seat 107 is fixedly connected to the mounting platform 201. At the front end of the upper end surface of the mounting platform 201, a positioning frame 205 is fixedly installed. In the middle of the front end surface of the positioning frame 205, an image transmission port 206 is provided. On one side of the positioning frame 205, a second locking knob 208 is installed. In the middle of the upper end surface of the mounting platform 201, an image acquisition box 203 is fixedly installed. At the rear end of the image acquisition box 203, a display 202 is fixedly installed. Inside the image acquisition box 203, a camera is provided. The camera is electrically connected to the display 202. The camera can collect images and use the display 202 to display the images in real time;

[0040] On the upper end surface of the mounting platform 201, a steering handle 204 is fixedly provided on one side of the image acquisition box 203. The front end of the image acquisition box 203 is movably installed with an adjusting threaded sleeve 207. The image acquisition box 203 and the positioning frame 205 are connected through the adjusting threaded sleeve 207. The front end of the adjusting threaded sleeve 207 is inserted into the inside of the positioning frame 205. The adjusting threaded sleeve 207 is threadedly connected to the positioning frame 205. The adjusting threaded sleeve 207 linearly reciprocates along the axis of the positioning frame 205. By rotating the adjusting threaded sleeve 207, the image acquisition box 203 can be connected to the lens mounting sleeve 305, thereby facilitating the camera to collect images using the lens.

[0041] Please refer to Figures 4 to 10The quick switching mechanism 3 includes an installation plate 301, which is plugged into the inner side of the positioning frame 205. The positioning frame 205 and the installation plate 301 are locked and installed by a second locking knob 208. A transparent protective plate 302 is provided on the front end surface of the installation plate 301, and a plurality of positioning grooves 309 are provided on one side of the installation plate 301. One end of the second locking knob 208 passes through the positioning frame 205 and is plugged into the inner side of one of the positioning grooves 309. Blocking pieces 303 are fixedly installed on the upper and lower ends of the installation plate 301. Two guide slides 306 are installed on the inner side of the installation plate 301. The installation plate 301 and the two guide slides 306 are fixedly connected. Multiple lens units are protected and installed by two blocking pieces 303, and then the replacement and storage of multiple lens units are facilitated when the two blocking pieces 303 are detached from the installation plate 301.

[0042] See also Figures 7 to 10 A plurality of lens units are installed between the two guide slides 306, and the plurality of lens units are linearly arranged along the side of the guide slide 306. The lens unit includes a positioning sleeve 304, and a positioning connecting plate 308 is installed on one side of the positioning sleeve 304. A slide groove is provided on one side of the guide slide 306, and both sides of the positioning sleeve 304 are plugged into the inner side of the slide groove. The installation sleeve 301 is connected to the plurality of positioning sleeves 304 through two blocking pieces 303, and the positioning sleeve 304 is installed by snapping with the positioning connecting plate 308. The positioning connecting plate 308 is used to facilitate positioning of the positioning sleeve 304, and the plurality of positioning sleeves 304 are kept evenly arranged on the inner side of the installation sleeve 301.

[0043] The inner side of the positioning sleeve 304 is rotatably connected with a lens mounting sleeve 305 and an adjusting gear 307. The image acquisition box 203, the positioning frame 205, the adjusting threaded sleeve 207 and one of the lens mounting sleeves 305 are coaxial. The adjusting gear 307 is rotatably connected to the positioning sleeve 304 through a pin. A transmission gear ring is provided on the outer side of the middle part of the lens mounting sleeve 305. The adjusting gear 307 is connected to the transmission gear ring through tooth meshing. Image acquisition lenses are provided on the inner sides of multiple lens mounting sleeves 305. The focal lengths of the multiple image acquisition lenses increase successively from bottom to top. By turning the adjusting gear 307, the lens can be rotated and adjusted through the lens mounting sleeve 305, so as to achieve fine-tuning of the focal length of image acquisition.

[0044] A collection method of a modular image collection system comprises the following steps:

[0045] S1: Place the camera for image acquisition inside the image acquisition box 203 and fixedly connect it to the mounting platform 201 through the image acquisition box 203, so that the image input end of the camera is coaxial with the image acquisition box 203, the positioning frame 205 and the adjusting threaded sleeve 207. Stabilize the triangular support base 103 through the ball head bearing 102 and the support leg 101, so that the triangular support base 103 can position and install the spherical adjusting seat 107 through two splicing seats 104;

[0046] S2: Specifically, one end of the first locking knob 106 passes through the mounting angle plate 105 and the splicing seat 104 and is connected to the spherical adjusting seat 107 through the anti-slip connecting pad 108, and the first locking knob 106 is threadedly connected to the mounting angle plate 105. By rotating the first locking knob 106, the two first locking knobs 106 can lock the spherical adjusting seat 107 through the anti-slip connecting pad 108, so as to facilitate the quick fixing operation when the spherical adjusting seat 107 is adjusted at any angle inside the two splicing seats 104, effectively meeting the requirement that the spherical adjusting seat 107 drives the camera through the mounting platform 201 to perform stable image acquisition at different angles;

[0047] S3: The camera is electrically connected to the display 202. When using the camera to acquire images, adjust the mounting sleeve plate 301. Specifically, a plurality of positioning grooves 309 are provided on one side of the mounting sleeve plate 301. One end of the second locking knob 208 passes through the positioning frame 205 and is inserted into the inside of one of the positioning grooves 309. By vertically adjusting the mounting sleeve plate 301 inside the positioning frame 205 and locking and positioning it through the second locking knob 208, it is convenient to realize the coaxial switching between the adjusting threaded sleeve 207 and a plurality of lens mounting sleeves 305;

[0048] S4: Then rotate the adjusting threaded sleeve 207. The adjusting threaded sleeve 207 is threadedly connected to the positioning frame 205, so that the adjusting threaded sleeve 207 passes through the positioning frame 205 and is inserted into the inside of the rear end of one of the lens mounting sleeves 305, realizing the through connection between the image acquisition box 203 and the lens mounting sleeve 305 through the adjusting threaded sleeve 207. Image acquisition lenses are provided inside the plurality of lens mounting sleeves 305, and the focal lengths of the plurality of image acquisition lenses increase sequentially from bottom to top. Therefore, the camera can acquire images through the image acquisition lenses and under the protection of the transparent protection plate 302. By driving the plurality of lens mounting sleeves 305 and the positioning frame 205 to switch through the mounting sleeve plate 301, the requirements of different focal lengths of the camera can be met;

[0049] S5: The adjusting gear 307 is connected to the transmission gear ring provided in the middle of the lens mounting sleeve 305 through tooth meshing, and then the adjusting gear 307 can be turned to rotate and adjust the lens through the lens mounting sleeve 305, so as to achieve fine adjustment of the focal length of image acquisition. During the image acquisition process, the picture can be displayed in real time through the display 202. The mounting plate 301 protects and installs multiple lens units through two sealing pieces 303, and then the two sealing pieces 303 are detached from the mounting plate 301 to facilitate the replacement and storage of multiple lens units.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A modular image acquisition system, comprising a positioning locking connection mechanism and a quick switching mechanism, characterized in that: A quick switching mechanism is installed at the front end of the positioning and locking connection mechanism, a multi-directional adjustment support mechanism is installed at the bottom end of the positioning and locking connection mechanism, the positioning and locking connection mechanism comprises a mounting platform, a positioning frame is fixedly installed at the front end of the upper surface of the mounting platform, an image transmission port is provided in the middle of the front end surface of the positioning frame, and a second locking knob is installed at one side of the positioning frame; The quick switching mechanism comprises a mounting plate, a transparent protective plate is provided on the front end surface of the mounting plate, a plurality of positioning grooves are provided on one side of the mounting plate, a blocking piece is fixedly installed on both the upper and lower ends of the mounting plate, two guide slides are installed on the inner side of the mounting plate, and a plurality of lens units are installed between the two guide slides; The lens unit comprises a positioning sleeve, a positioning connecting plate is installed on one side of the positioning sleeve, and a lens mounting sleeve and an adjusting gear are rotatably connected to the inner side of the positioning sleeve; The multi-directional adjustable support mechanism comprises a triangular support base, three end corners of the lower end surface of the triangular support base are fixedly mounted with ball bearings, the outer side of the bottom end of the ball bearing is connected to a support leg through a thread, two splicing seats are fixedly mounted in the middle of the upper end surface of the triangular support base, a mounting angle plate is fixedly mounted on one side of the splicing seat, a first locking knob is mounted on the inner side of the mounting angle plate, one end of the first locking knob is provided with an anti-slip connection pad, and a spherical adjustment seat is movably mounted between the two splicing seats; The positioning sleeve is installed by snapping into the positioning connecting plate, the adjusting gear is rotatably connected to the positioning sleeve by a pin, a transmission gear ring is provided on the outer side of the middle part of the lens mounting sleeve, the adjusting gear and the transmission gear ring are connected by tooth meshing, and image acquisition lenses are provided on the inner sides of multiple lens mounting sleeves, and the focal lengths of the multiple image acquisition lenses increase successively from bottom to top.

2. A modular image acquisition system according to claim 1, characterized in that: The positioning and locking connection mechanism also includes an image acquisition box fixedly connected to the mounting platform, a display is fixedly installed at the rear end of the image acquisition box, an upper end surface of the mounting platform is located on one side of the image acquisition box and a direction adjustment handle is fixedly provided, and an adjustment threaded sleeve is movably installed at the front end of the image acquisition box.

3. A modular image acquisition system according to claim 2, characterized in that: The upper end of the spherical adjustment seat is fixedly connected to the mounting platform, and the two splicing seats, the mounting angle plate, the first locking knob and the anti-slip connecting pad are symmetrically installed relative to the spherical adjustment seat, one end of the first locking knob passes through the mounting angle plate and the splicing seat and is in contact with the spherical adjustment seat through the anti-slip connecting pad, and the mounting angle plate is connected to the splicing seat by threads.

4. A modular image acquisition system according to claim 3, characterized in that: A camera is provided on the inner side of the image acquisition box, the camera is electrically connected to the display, the image acquisition box is connected to the positioning frame through an adjusting threaded sleeve, the front end of the adjusting threaded sleeve is plugged into the inner side of the positioning frame, and the adjusting threaded sleeve is connected to the positioning frame through threads.

5. A modular image acquisition system according to claim 4, characterized in that: The image acquisition box, the positioning frame, the adjusting thread sleeve and one of the lens mounting sleeves are coaxial, and the adjusting thread sleeve slides linearly back and forth along the axis of the positioning frame.

6. A modular image acquisition system according to claim 5, characterized in that: The installation sleeve is plugged into the inner side of the positioning frame, one end of the second locking knob passes through the positioning frame and is plugged into the inner side of one of the positioning slots, and the positioning frame and the installation sleeve are locked and installed by the second locking knob.

7. A modular image acquisition system according to claim 6, characterized in that: The installation sleeve is fixedly connected to the two guide slides, and the multiple lens units are linearly arranged along the side of the guide slide. A slide groove is provided on one side of the guide slide. Both sides of the positioning sleeve are inserted into the inner side of the slide groove. The installation sleeve is connected to the multiple positioning sleeves through two sealing plates.

8. A method for collecting images in a modular image collection system according to claim 7, characterized in that: The following steps are involved: S1: A camera for image acquisition is placed inside the image acquisition box and fixedly connected to the mounting platform through the image acquisition box, so that the image input end of the camera is coaxial with the image acquisition box, the positioning frame and the adjusting threaded sleeve, and the triangular support base is stably supported by the ball head bearing and the supporting legs, so that the triangular support base can position and install the spherical adjustment seat through two splicing seats; S2: Specifically, one end of the first locking knob passes through the mounting angle plate and the splicing seat and is connected to the spherical adjustment seat through an anti-skid connection pad, and the first locking knob is connected to the mounting angle plate through a threaded connection. By rotating the first locking knob, the two first locking knobs can lock the spherical adjustment seat through the anti-skid connection pad, thereby facilitating the spherical adjustment seat to be quickly fixed when any angle is adjusted inside the two splicing seats, effectively satisfying the spherical adjustment seat driving the camera to acquire stable images at different angles through the mounting platform; S3: The camera is electrically connected to the display. When the camera is used to collect images, the mounting plate is adjusted. Specifically, a plurality of positioning grooves are provided on one side of the mounting plate. One end of the second locking knob penetrates the positioning frame and is plugged into the inner side of one of the positioning grooves. The mounting plate is vertically adjusted on the inner side of the positioning frame and locked and positioned by the second locking knob, thereby facilitating the coaxial switching of the adjusting threaded sleeve and the plurality of lens mounting sleeves. S4: Then the adjusting threaded sleeve is rotated, and the adjusting threaded sleeve is connected to the positioning frame through threads, so that the adjusting threaded sleeve passes through the positioning frame and is plugged into the inner side of the rear end of one of the lens mounting sleeves, so that the image acquisition box and the lens mounting sleeve are connected through the adjusting threaded sleeve. Image acquisition lenses are arranged on the inner sides of the multiple lens mounting sleeves, and the focal lengths of the multiple image acquisition lenses increase from bottom to top, so that the camera can acquire images through the image acquisition lens and under the protection of the transparent protective plate. By driving the multiple lens mounting sleeves and the positioning frame to switch through the mounting sleeve, the requirements of different focal lengths of the camera can be met; S5: The adjusting gear is meshed with the transmission gear ring provided in the middle of the lens mounting sleeve, and the lens can be rotationally adjusted through the lens mounting sleeve by turning the adjusting gear, so that the focal length of the image acquisition can be fine-tuned. During the image acquisition process, the picture can be displayed in real time through the display. The mounting plate protects and installs multiple lens units through two sealing pieces, and the multiple lens units can be easily replaced and stored when the mounting plate is detached from the mounting plate through the two sealing pieces.

Images