Mobile cylinder structure of outdoor camera

Abstract

The invention relates to the technical field of camera components, and discloses an outdoor camera movable cylinder structure, which comprises a fixed cylinder, a rotating cylinder I is coaxially and rotatably connected in the fixed cylinder, a plurality of groups of wide-angle camera modules are fixedly arranged at the top of the rotating cylinder I along the circumferential direction, and a driving module for driving the rotating cylinder I to rotate is arranged at the bottom of the rotating cylinder I; the driving module is fixedly installed in the fixed cylinder, a second rotating cylinder is further slidably connected into the first rotating cylinder, the second rotating cylinder rotates coaxially along with the first rotating cylinder, a plurality of long-focus camera modules are arranged on the top of the second rotating cylinder in the circumferential direction of the second rotating cylinder, and a piston module for controlling the second rotating cylinder to ascend and descend is arranged at the bottom of the second rotating cylinder. The piston module is fixedly mounted at the bottom of the driving module; according to the invention, the picture shot by the long-focus camera module and the picture shot by the wide-angle camera module after shooting is completed are synthesized, so that the surrounding environment can be completely presented while the shot target is shot more clearly, and shooting dead angles are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of camera components, in particular to a mobile barrel structure of an outdoor camera. Background Art

[0002] The camera support cylinder, as an indispensable part of the camera installation system, plays a key role in supporting and fixing the camera. It is usually made of high-strength, corrosion-resistant materials, such as high-quality metal alloys or high-performance plastics, to ensure the stability and durability of the structure under various environmental conditions. This cylinder is exquisitely designed to protect the camera from external physical damage, such as impact, wind and rain erosion, etc., and through its internal structure design, it provides the camera with necessary wires, data cables and signal transmission lines, making the installation and wiring more neat and orderly. The height, diameter and installation method (such as wall-mounted, ceiling-mounted or pole-mounted) of the camera support cylinder can be customized according to the needs of the actual application scenario to meet the requirements of different monitoring ranges, angles and heights. The support cylinder of some high-end models also integrates rotation and tilt adjustment functions, so that the camera's viewing angle can be flexibly adjusted, further expanding the monitoring coverage and improving monitoring efficiency.

[0003] However, the existing camera support cylinder can only support a single camera, so it can only shoot a single target in one direction. If there are shooting targets in multiple directions, it is impossible to shoot multiple targets comprehensively. In addition, the height and angle adjustment of the camera are limited, which cannot meet the camera's multi-angle tracking target shooting. Moreover, if the shooting target is far away from the camera and moves at a fast speed, if a traditional mobile camera is used for shooting, a high-speed shutter is required. When shooting with a telephoto high-speed shutter, the combined influence of the telephoto small aperture and the high-speed shutter will reduce the amount of light entering the sensor, resulting in underexposure of the picture and loss of details, reducing the picture quality, and affecting the shooting effect of the outdoor camera. High-definition imaging is particularly important in some outdoor monitoring. Moreover, if the shooting focal length only uses a telephoto focal length, the surrounding environment information of the picture will be lost, reducing the amount of picture information, and affecting the outdoor monitoring effect. At the same time, due to the high cost of high-speed cameras and their own poor air tightness, such cameras are very easy to be damaged after long-term outdoor shooting. And if the camera needs to be moved frequently for surveillance and shooting, the camera is also very easy to wear out. When the surveillance area does not need to be filmed for a period of time, if the camera is exposed to the environment for a long time, it may be affected by various environmental factors, such as temperature changes, humidity, dust, dirt, etc. These factors will have a negative impact on the performance and life of the camera. Summary of the invention

[0004] (I) Technical problems solved: In view of the shortcomings of the prior art, the present invention provides a mobile cylindrical structure for an outdoor camera, which has the advantages of omnidirectional shooting with clear targets and complete environment and reducing the impact of the environment on the camera. It solves the problems that the existing cameras cannot shoot high-definition and complete environments of targets in multiple directions and the cameras are easily damaged when used outdoors for a long time.

[0005] (II) Technical solution: In order to achieve the purpose of all-directional shooting with clear shooting targets and complete environment presentation and reduce the impact of the environment on the camera, the present invention provides the following technical solution: a mobile cylinder structure of an outdoor camera, including a fixed cylinder, a rotating cylinder one is coaxially connected to the fixed cylinder, a plurality of groups of wide-angle camera modules are fixedly arranged on the top of the rotating cylinder one along its circumferential direction, a driving module for driving the rotating cylinder one is arranged at the bottom of the rotating cylinder one, the driving module is fixedly installed in the fixed cylinder, a rotating cylinder two is also slidably connected to the rotating cylinder one, the rotating cylinder two rotates coaxially with the rotating cylinder, a plurality of groups of telephoto camera modules are arranged on the top of the rotating cylinder two along its circumferential direction, a piston module for controlling the lifting of the rotating cylinder two is arranged at the bottom of the rotating cylinder two, and the piston module is fixedly installed at the bottom of the driving module; the wide-angle camera module and the telephoto camera module shoot pictures in the same direction and merge the pictures later, wherein the telephoto camera module moves to capture the shooting target picture.

[0006] Preferably, an air flow hood with an air cavity arranged inside is also fixedly connected to the top of the fixed cylinder, a sliding rod is arranged inside the rotating cylinder two, a protective shield is arranged on the top of the sliding rod, the bottom of the protective shield is connected to the air flow hood, the top of the air flow hood is connected to the inside of the protective shield, the side of the air flow hood is connected to the external environment, a fan is arranged on the top of the air flow hood, and the fan is coaxially fixedly mounted on the rotating cylinder one; when the rotating cylinder one rotates, the fan is driven to rotate so that the pressure inside the protective shield is greater than the ambient pressure.

[0007] Preferably, the wide-angle camera module includes a short-focus camera and a suspension arm 1, one end of the suspension arm 1 is fixedly mounted on the top of the rotating cylinder 1, and the other end of the suspension arm 1 is rotatably connected to the short-focus camera; the telephoto camera module includes a telephoto high-speed camera and a suspension arm 2, one end of the suspension arm 2 is fixedly mounted on the top of the rotating cylinder 2, and the other end of the suspension arm 2 is rotatably connected to the telephoto high-speed camera.

[0008] Preferably, the top of the shield is made of a non-transparent material, and the bottom of the shield is made of a transparent material.

[0009] Preferably, the shield is cylindrical in shape, and an annular sliding groove is provided at the bottom of the fixed cylinder. The bottom of the shield can slide along the airflow cover and be inserted into the sliding groove. The sliding rod is coaxially slidably connected with the rotating cylinder, and a transmission structure for controlling the lifting of the sliding rod is provided at the bottom of the sliding rod; the transmission structure controls the lifting of the sliding rod to insert the bottom of the shield into the sliding groove, so that a seal is formed inside the shield.

[0010] Preferably, a gas reflux channel is provided inside the sliding rod, one end of the gas reflux channel is connected to the inside of the protective cover, the other end of the gas reflux channel is connected to the external environment, and a gas valve is provided in the gas channel.

[0011] Preferably, the transmission structure is fixedly installed on the bottom of the fixed cylinder, the transmission structure is specifically a linear screw drive module, and the bottom of the sliding rod is provided with a thread.

[0012] Preferably, an air hole connecting the air cavity with the external environment is provided on the side wall of the air flow hood, and an air guide tube is provided on the top of the air flow hood, one end of the air guide tube is connected to the air cavity, and the other end of the air guide tube is connected to the inside of the protective cover, and the fan is coaxially arranged in the air guide tube, and the diameter of the air guide tube is equal to the diameter of the fan; a filter element is installed in the air cavity.

[0013] Preferably, the driving module includes a support plate, a motor, and a transmission belt. The support plate is fixedly installed in the fixed cylinder, the motor is fixedly installed on the fixed cylinder, the transmission belt is arranged on the driving end of the motor, and the transmission belt is connected to the rotating cylinder; the piston module is fixedly installed at the bottom of the support plate.

[0014] (III) Beneficial effects: Compared with the prior art, the present invention provides a mobile barrel structure for an outdoor camera, which has the following beneficial effects: 1. The mobile barrel structure for an outdoor camera, through the coordinated use of a telephoto camera module and a wide-angle camera module, synthesizes the picture taken by the telephoto camera module and the picture taken by the wide-angle camera module after shooting is completed, so that the area shot by the telephoto camera module is embedded in the wider picture shot by the wide-angle camera module, so that the resolution of the corresponding area where the shooting target appears in the picture is higher than that of other areas, which can achieve clearer shooting of the shooting target while fully presenting the surrounding environment, avoiding the loss of details of the picture environment, and supplementing and balancing with the picture of the wide-angle camera module, which can improve the picture quality of the corresponding position and avoid the problem of low exposure caused by shooting with a telephoto high-speed camera; and the rotation of several groups of wide-angle camera modules and telephoto camera modules also enables the structure to achieve omni-directional shooting of the surrounding environment and avoid shooting blind spots.

[0015] 2. The mobile cylinder structure of the outdoor camera is used in conjunction with the fan structure and the shield structure. When the cylinder structure is in use, the rotating cylinder 1 will drive the fan structure to rotate to extract the gas in the airflow shield, so that the pressure in the shield is higher than the ambient pressure. The pressure difference can effectively prevent the penetration of external rainwater and avoid the loss of the camera module. At the same time, the filtered gas can also prevent dust from entering the shield. When the telephoto camera module is not shooting, the piston module can be used to control the rotating cylinder 2 to rise to the non-transparent material area of ​​the shield to reduce the direct exposure of ambient light to the telephoto camera module.

[0016] 3. The mobile cylinder structure of the outdoor camera is used in conjunction with the shield structure, the fan structure, and the sliding rod structure. When the cylinder structure is not in use, the transmission structure controls the shield to descend and insert it into the sliding groove, so that a closed environment is formed inside the shield. At the same time, the fan is always rotating during this process, which will make the pressure inside the airflow shield and the shield much greater than the pressure of the external environment. This pressure difference forms an outward pressure barrier, which effectively prevents the gas (including liquid, such as rainwater) of the external environment from penetrating into the inside of the shield, thereby greatly reducing the damage to internal equipment caused by storage environment problems when the cylinder structure is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural front view of the mobile cylinder structure of the outdoor camera in the present invention.

[0018] Figure 2 It is a top view of the structure of the mobile cylinder structure of the outdoor camera in the present invention.

[0019] Figure 3 for Figure 2 AA section view.

[0020] Figure 4 It is a three-dimensional structural cross-sectional view of the mobile barrel structure of the outdoor camera in the present invention.

[0021] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the mobile cylinder structure of the outdoor camera in the present invention.

[0022] Figure 6 It is a schematic diagram of the post-structural imaging of the movable cylinder structure of the outdoor camera in the present invention.

[0023] Figure 7 for Figure 4 A partial enlarged view of M.

[0024] Figure 8 for Figure 3 A partial enlarged view of N.

[0025] Fig. 9It is a schematic diagram of the lifting and lowering of the rotating cylinder second structure of the mobile cylinder structure of the outdoor camera in the present invention.

[0026] Fig.10 It is a schematic diagram of the lifting and lowering of the shield structure of the mobile cylinder structure of the outdoor camera in the present invention.

[0027] In the figure: 1. fixed cylinder; 2. rotating cylinder 1; 21. wide-angle camera module; 211. short-focus camera; 212. suspension arm 1; 22. fan; 3. driving module; 31. support plate; 32. motor; 33. transmission belt; 4. rotating cylinder 2; 41. telephoto camera module; 411. telephoto high-speed camera; 412. suspension arm 2; 5. piston module; 6. air flow cover; 61. air guide tube; 7. sliding rod; 71. gas reflux channel; 72. air valve; 8. protective cover; 9. sliding groove; 10. transmission structure. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7The mobile barrel structure of the outdoor camera includes a fixed barrel 1, a rotating barrel 2 is coaxially connected to the fixed barrel 1, and a plurality of groups of wide-angle camera modules 21 are fixedly arranged on the top of the rotating barrel 2 along its circumferential direction. Such a design allows the wide-angle camera module 21 to shoot the surrounding environment in all directions without blind spots. By setting the rotating barrel 2 to be able to rotate in the fixed barrel 1, 360-degree environmental monitoring can be achieved. The wide-angle camera provides a wide field of view and is suitable for capturing a wide range of environmental scenes. A driving module 3 is arranged at the bottom of the rotating barrel 2 to drive it to rotate. The driving module 3 is fixedly installed in the fixed barrel 1. A rotating barrel 2 4 is also slidably connected to the rotating barrel 2. The rotating barrel 2 4 rotates coaxially with the rotating barrel 2. The design of the rotating barrel 2 4 provides an independent mobile platform specifically for the telephoto camera module 41. In this way, the position of the telephoto camera module 41 can be independently controlled to achieve more accurate target tracking and shooting. By allowing rotating cylinder 2 4 to rotate coaxially with rotating cylinder 1 2, it can be ensured that the telephoto camera module 41 and the wide-angle camera module 21 shoot in the same direction, which facilitates the synthesis of the later images. Several groups of telephoto camera modules 41 are arranged along the circumference of the top of rotating cylinder 2 4. The telephoto camera modules 41 are arranged to enable longer-distance and higher-precision shooting when a specific target is found. A piston module 5 is arranged at the bottom of rotating cylinder 2 4 to control its lifting. By controlling the lifting of rotating cylinder 2 4 by piston module 5, the position of telephoto camera module 41 can be adjusted so that it can retreat to a safer position when not needed. At the same time, the height of telephoto camera module 41 can also be adjusted as needed to obtain a better shooting angle and range. Piston module 5 is fixedly installed at the bottom of driving module 3 and enters after rising. Fig. 9 As shown; the wide-angle camera module 21 and the telephoto camera module 41 shoot the same direction of the picture and the picture is later merged, wherein the telephoto camera module 41 moves to capture the target picture, such as Figure 6 shown.

[0030] See also Figure 3 , Figure 4 , Figure 5 and Figure 7, the top of the fixed cylinder 1 is also fixedly connected with an airflow cover 6 with an air cavity inside. The design of the airflow cover 6 is to protect the internal components from the external environment such as rain, dust, etc. A sliding rod 7 is arranged inside the rotating cylinder 2 4, and a shield 8 is arranged on the top of the sliding rod 7. The bottom of the shield 8 is connected to the airflow cover 6, the top of the airflow cover 6 is connected to the inside of the shield 8, and the side of the airflow cover 6 is connected to the external environment. Such a design is conducive to forming a closed protective environment. Through the connection between the airflow cover 6 and the shield 8, it is ensured that the internal positive pressure environment can effectively isolate external pollutants. A fan 22 is arranged on the top of the airflow cover 6. The fan 22 is coaxially fixedly installed on the rotating cylinder 1 2. The setting of the fan 22 is to form a positive pressure environment to prevent external pollutants from entering. Installing the fan 22 on the rotating cylinder 1 2 helps to save space, and ensures that the fan 22 can rotate synchronously with the rotating cylinder 1 2 to maintain the continuous stability of the airflow; when the rotating cylinder 1 2 rotates, the fan 22 is driven to rotate so that the pressure inside the shield 8 is greater than the ambient pressure.

[0031] See also Figure 3 , Figure 4 , Figure 5 and Figure 6 The wide-angle camera module 21 includes a short-focus camera 211 and a suspension arm 1 212. One end of the suspension arm 1 212 is fixedly mounted on the top of the rotating cylinder 1 2, and the other end of the suspension arm 1 212 is rotatably connected to the short-focus camera 211. The long-focus camera module 41 includes a long-focus high-speed camera 411 and a suspension arm 2 412. One end of the suspension arm 2 412 is fixedly mounted on the top of the rotating cylinder 2 4, and the other end of the suspension arm 2 412 is rotatably connected to the long-focus high-speed camera 411. The design of the suspension arm 1 212 and the suspension arm 2 412 enables the short-focus camera 211 and the long-focus high-speed camera 411 to make necessary adjustments and rotations while maintaining stability, so as to accurately shoot the target. A rotating slip ring is provided at the bottom of the rotating cylinder 1 2, wherein the control circuits and power circuits of the short-focus camera 211 and the long-focus high-speed camera 411 are connected through the rotating slip ring provided at the bottom of the rotating cylinder 2. The use of the rotating slip ring allows the power supply and control circuits to remain connected when the rotating tube 2 rotates, ensuring the continuity of the power supply and signal transmission of the camera module and avoiding disconnection problems caused by rotation. The top of the shield 8 is made of non-transparent material, and the bottom of the shield 8 is made of transparent material. The non-transparent material on the top can prevent direct sunlight from damaging the camera, while the transparent material on the bottom ensures that the camera can clearly capture the external environment, achieving a balance between protection and functionality. The non-transparent material is polycarbonate, and the transparent material is glass.

[0032] See also Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 and Fig.10The shield 8 is cylindrical in shape, and an annular sliding groove 9 is provided at the bottom of the fixed cylinder 1. The bottom of the shield 8 can slide along the airflow cover 6 and be inserted into the sliding groove 9. This design allows the shield 8 to form a sealed environment when needed to protect the internal equipment from external conditions such as rain, dust, etc. The sliding rod 7 is coaxially slidably connected with the rotating cylinder 24. The bottom of the sliding rod 7 is provided with a transmission structure 10 for controlling its lifting. This design allows the position of the shield 8 to be accurately controlled to ensure that it can be lifted and lowered as needed to achieve a sealed or open state; the transmission structure 10 controls the lifting and lowering of the sliding rod 7 to insert the bottom of the shield 8 into the sliding groove 9, so that the shield 8 is sealed. A gas reflux channel 71 is provided inside the sliding rod 7, one end of the gas reflux channel 71 is connected to the inside of the shield 8, and the other end of the gas reflux channel 71 is connected to the external environment, and a gas valve 72 is provided in the gas channel. When the pressure inside the shield 8 is too high, these designs allow the gas to be discharged to prevent the internal pressure of the shield 8 from being too high, protect the internal equipment, and maintain the pressure balance inside and outside the shield 8; when the pressure inside the shield 8 is too high, the gas can be discharged through the gas reflux channel 71. The transmission structure 10 is fixedly installed at the bottom of the fixed cylinder 1, and the transmission structure 10 is specifically a linear screw drive module 3, and the bottom of the sliding rod 7 is provided with a thread. The side wall of the airflow hood 6 is provided with air holes that connect the air cavity with the external environment. The top of the airflow hood 6 is provided with an air guide tube 61. One end of the air guide tube 61 is connected to the air cavity, and the other end of the air guide tube 61 is connected to the inside of the protective hood 8. The fan 22 is coaxially arranged in the air guide tube 61, and the diameter of the air guide tube 61 is equal to the diameter of the fan 22. The design of the air holes, the air guide tube 61 and the coaxial fan 22, and the installation of the filter element enable it to control the airflow, filter the air and maintain the internal pressure of the protective hood 8. The system prevents external pollutants from entering and protects the internal environment. The filter element can be installed in the air cavity. The drive module 3 includes a support plate 31, a motor 32, and a transmission belt 33. The support plate 31 is fixedly installed in the fixed cylinder 1, and the motor 32 is fixedly arranged on the fixed cylinder 1. The drive belt 33 is arranged on the driving end of the motor 32, and the drive belt 33 is connected to the rotating cylinder 2; the piston module 5 is fixedly installed at the bottom of the support plate 31.

[0033] Working principle: When in use, the driving module 3 drives the rotating cylinder 1 2 and the rotating cylinder 2 4 to rotate coaxially in the fixed cylinder 1. During the rotation process, several groups of wide-angle camera modules 21 shoot the surrounding environment. At this time, the telephoto camera module 41 is on standby. The standby of the telephoto camera module 41 can increase its service life. When the wide-angle camera module 21 finds that it needs to shoot a target, the telephoto camera module 41 starts to shoot the shooting target position at the telephoto end. After the shooting is completed, the picture shot by the telephoto camera module 41 is synthesized with the picture shot by the wide-angle camera module 21. The area shot by the telephoto camera module 41 can be embedded in the wider picture shot by the wide-angle camera module 21, so that the resolution of the corresponding area where the shooting target appears in the picture is higher than that of other areas. While being able to shoot the shooting target more clearly, the surrounding environment is also fully presented to avoid the loss of details of the picture environment. After the images are synthesized, the target area in the image is a combination of the images of the wide-angle camera module 21 and the telephoto camera module 41. Therefore, when the two sets of images are superimposed later, the image of the wide-angle camera module 21 is used to supplement and balance the image, which can improve the image quality of the corresponding position and avoid the problem of low exposure caused by shooting with the telephoto high-speed camera 411.

[0034] When the barrel structure is in use, the shield 8 structure can reduce the impact of the environment on the camera module, such as direct sunlight, rain and dust. Fig.10 As shown. When the rotating cylinder 1 2 is rotating, it will drive the fan 22 structure to rotate to extract the gas in the airflow hood 6. The gas in the airflow hood 6 is the gas filtered by the filter element, so that the pressure in the protective cover 8 is higher than the ambient pressure. The pressure difference can effectively prevent the penetration of external rainwater and dust to avoid the loss of the camera module. At the same time, the filtered gas can also prevent dust from entering the protective cover 8. And because the airflow hood 6 is arranged below the protective cover 8 structure, and the fan 22 is arranged in the air guide 61 and blows upward, the problem of environmental rainwater penetration can be avoided; and when the telephoto camera module 41 is not shooting, the piston module 5 can be used to control the rotating cylinder 2 4 to rise to the non-transparent material area of ​​the protective cover 8 to reduce the direct exposure of ambient light to the telephoto camera module 41.

[0035] When the cylinder structure is not in use, the airflow hood 6 can be closed by controlling the shield 8, thereby effectively avoiding the impact of the environment on the internal equipment. The shield 8 is controlled to descend and inserted into the sliding slot 9 through the transmission structure 10, so that a closed environment is formed in the shield 8. At the same time, during this process, the driving module 3 drives the rotating cylinder 2 to rotate, so that the fan 22 is always in the process of rotation, so that during the descent of the shield 8, the airflow hood 6 is always in a state of inward exhaust relative to the external environment. When the shield 8 is inserted into the sliding slot 9, the pressure inside the airflow hood 6 and the shield 8 is much greater than the pressure of the external environment. This pressure difference forms an outward pressure barrier, which effectively prevents the gas, including liquid, such as rainwater, from the external environment from penetrating into the shield 8, thereby greatly reducing the damage to the internal equipment caused by storage problems when the cylinder structure is not in use.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile cylinder structure for an outdoor camera, comprising a fixed cylinder (1), wherein a rotating cylinder (2) is coaxially rotatably connected to the fixed cylinder (1), characterized in that: A plurality of groups of wide-angle camera modules (21) are fixedly arranged at the top of the rotating cylinder (2) along its circumferential direction; a driving module (3) for driving the rotating cylinder (2) is arranged at the bottom of the rotating cylinder (2); the driving module (3) is fixedly installed in the fixed cylinder (1); a rotating cylinder (4) is also slidably connected to the rotating cylinder (2); the rotating cylinder (4) rotates coaxially with the rotating cylinder (2); a plurality of groups of telephoto camera modules (41) are arranged at the top of the rotating cylinder (4) along its circumferential direction; a piston module (5) for controlling the lifting of the rotating cylinder (4) is arranged at the bottom of the rotating cylinder (4); the piston module (5) is fixedly installed at the bottom of the driving module (3); the wide-angle camera module (21) and the telephoto camera module (41) shoot images in the same direction and merge the images later; the telephoto camera module (41) moves to capture the target image.

2. The mobile cylindrical structure of an outdoor camera according to claim 1 is characterized in that: The top of the fixed cylinder (1) is also fixedly connected to an airflow hood (6) having an air cavity therein; a sliding rod (7) is provided inside the rotating cylinder (4); a protective hood (8) is provided on the top of the sliding rod (7); the bottom of the protective hood (8) is connected to the airflow hood (6); the top of the airflow hood (6) is connected to the inside of the protective hood (8); the side of the airflow hood (6) is connected to the external environment; a fan (22) is provided on the top of the airflow hood (6); the fan (22) is coaxially fixedly mounted on the rotating cylinder (2); when the rotating cylinder (2) rotates, the fan (22) is driven to rotate so that the pressure inside the protective hood (8) is greater than the ambient pressure.

3. The mobile cylindrical structure of an outdoor camera according to claim 1, characterized in that: The wide-angle camera module (21) comprises a short-focus camera (211) and a first suspension arm (212), one end of the first suspension arm (212) being fixedly mounted on the top of the first rotating cylinder (2), and the other end of the first suspension arm (212) being rotatably connected to the short-focus camera (211); the long-focus camera module (41) comprises a long-focus high-speed camera (411) and a second suspension arm (412), one end of the second suspension arm (412) being fixedly mounted on the top of the second rotating cylinder (4), and the other end of the second suspension arm (412) being rotatably connected to the long-focus high-speed camera (411).

4. The mobile cylindrical structure of an outdoor camera according to claim 2, characterized in that: The top of the protective cover (8) is made of a non-transparent material, and the bottom of the protective cover (8) is made of a transparent material.

5. The mobile cylindrical structure of an outdoor camera according to claim 2, characterized in that: The shield (8) is cylindrical in shape, and an annular sliding groove (9) is provided at the bottom of the fixed cylinder (1). The bottom of the shield (8) can slide along the airflow cover (6) and be inserted into the sliding groove (9). The sliding rod (7) is coaxially slidably connected with the rotating cylinder (4). A transmission structure (10) for controlling the lifting of the sliding rod (7) is provided at the bottom. The transmission structure (10) controls the lifting of the sliding rod (7) to insert the bottom of the shield (8) into the sliding groove (9), so that a seal is formed inside the shield (8).

6. The mobile cylindrical structure of an outdoor camera according to claim 2, characterized in that: A gas reflux channel (71) is provided inside the sliding rod (7), one end of the gas reflux channel (71) is connected to the inside of the protective cover (8), and the other end of the gas reflux channel (71) is connected to the external environment, and a gas valve (72) is provided in the gas channel.

7. The mobile cylindrical structure of an outdoor camera according to claim 5, characterized in that: The transmission structure (10) is fixedly mounted on the bottom of the fixed cylinder (1); the transmission structure (10) is specifically a linear screw drive module (3); and a thread is provided on the bottom of the sliding rod (7).

8. The mobile cylindrical structure of an outdoor camera according to claim 2, characterized in that: An air hole is provided on the side wall of the air flow cover (6) for connecting the air cavity with the external environment, and an air guide tube (61) is provided on the top of the air flow cover (6). One end of the air guide tube (61) is connected to the air cavity, and the other end of the air guide tube (61) is connected to the inside of the protective cover (8). The fan (22) is coaxially arranged in the air guide tube (61), and the diameter of the air guide tube (61) is equal to the diameter of the fan (22); a filter element is installed in the air cavity.

9. The mobile cylindrical structure of an outdoor camera according to claim 1, characterized in that: The driving module (3) comprises a support plate (31), a motor (32), and a transmission belt (33); the support plate (31) is fixedly mounted in the fixed cylinder (1); the motor (32) is fixedly mounted on the fixed cylinder (1); the transmission belt (33) is arranged on the driving end of the motor (32); and the transmission belt (33) is connected to the rotating cylinder (2); the piston module (5) is fixedly mounted on the bottom of the support plate (31).

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