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CN-121995681-A - Automatic focusing and diaphragm adjusting device for externally hung camera

CN121995681ACN 121995681 ACN121995681 ACN 121995681ACN-121995681-A

Abstract

The invention discloses an automatic focusing and diaphragm adjusting device of an externally hung camera, which relates to the technical field of camera accessories, solves the problems of camera focal length and diaphragm adjustment, such as damage to a camera shell, poor universality, difficulty in control of adjusting contact force and the like, and comprises a fixing component, a locking component, a supporting component, an adjusting component, a control component and a remote control component; the fixing component is matched with the locking component to realize external non-destructive fixing, the supporting component adjusts and locks the pose of the adjusting component through the spherical hinge connecting rod with the threaded locking structure to ensure that the rotation axis of the supporting component is consistent with the axis of the camera adjusting ring, the adjusting component consists of a motor, a speed reducer, a gear transmission mechanism and rotating heads matched with different cameras, and the control component receives the instruction of the remote control component and drives the motor to accurately adjust. The device does not need to reform a camera, adapts to various types of cameras, supports remote wireless operation, has a simple structure and low cost, and obviously improves the safety and efficiency of parameter adjustment under a dynamic capture scene.

Inventors

  • WU WEIGUO
  • GAO LIYANG

Assignees

  • 泉州信息工程学院

Dates

Publication Date
20260508
Application Date
20260320

Claims (10)

  1. 1. An automatic focusing and aperture adjusting device for an externally-hung camera is characterized by comprising a fixing component (2), a locking component (3), a supporting component (4), an adjusting component and a driving component, wherein the fixing component (2) is detachably arranged on the camera (1) through the locking component (3), the driving component is a motor (6), the adjusting component comprises a rotating head (5), a speed reducer (7), a pinion (8), a gear disc (9), a fixing seat (10) and a sliding block (11), an arc guide rail is arranged on the front side of the gear disc (9), internal teeth are arranged on the inner side of the gear disc (9), the fixing seat (10) is slidably arranged on the arc guide rail through the sliding block (11), the speed reducer (7) is arranged on the fixing seat (10), the output end of the motor (6) is in transmission connection with the input end of the speed reducer (7), the pinion (8) is arranged at the output end of the speed reducer (7), the internal teeth of the pinion (8) and the gear disc (9) are in meshed transmission, the rotating head (5) is arranged on the fixing seat (10), the rotating head (5) is clamped on an adjusting ring of the camera (1), the camera adjusting ring comprises a fixing component (2), a gear disc (9), a motor (6), a supporting component (4), a fixing seat (10), a fixing seat and a camera adjusting ring, wherein the motor (6) is used for driving the fixing seat (10) to slide along an arc guide rail so as to realize the rotation adjustment of the camera adjusting ring by the rotating head (5); And a control assembly for controlling the operation of the motor (6).
  2. 2. The automatic focusing and diaphragm adjusting device for the external hanging camera according to claim 1, wherein the fixing component (2) comprises a left single-side clamping jaw and a right single-side clamping jaw, the locking component (3) comprises a sliding nut, a sliding screw and a guide rail, the sliding nut is assembled on the sliding screw, the left single-side clamping jaw and the right single-side clamping jaw are connected in a sliding mode through the guide rail, one end of the sliding screw is connected with the right single-side clamping jaw in a rotating mode, the sliding nut on the sliding screw is connected with the left single-side clamping jaw, the axis of the sliding screw is parallel to the sliding direction of the guide rail, and sliding movement of the left single-side clamping jaw along the guide rail is achieved through rotating the sliding screw.
  3. 3. The device for automatically focusing and adjusting aperture of external hanging camera according to claim 2, wherein the locking assembly (3) further comprises a handle connected with the end of the sliding screw.
  4. 4. The device of claim 2, wherein flexible rubber pads are disposed on the inner sides of the left and right single-side jaws.
  5. 5. The automatic focusing and diaphragm adjusting device for the external hanging camera according to claim 2, wherein the supporting component (4) comprises a plurality of spherical hinges and a plurality of connecting rods, any two adjacent connecting rods are rotatably connected through one spherical hinge, the end part of the connecting rod at one end is connected with a right single-side clamping jaw, and the end part of the connecting rod at the other end is connected with a gear disc (9).
  6. 6. The automatic focusing and diaphragm adjusting device for the external camera according to claim 1, wherein the adjusting assembly further comprises a sliding rod and a pressure spring, the rotating head (5) is installed on the fixed seat (10) in a sliding mode through the sliding rod, the pressure spring is sleeved on the sliding rod, one end of the pressure spring abuts against the fixed seat (10), and the other end of the pressure spring abuts against the rotating head (5).
  7. 7. An externally hung camera autofocus aperture device according to claim 1, characterized in that the gear disc (9) is a quarter-circle, a half-circle or a complete circle.
  8. 8. The automatic focusing and diaphragm adjusting device for an externally hung camera according to claim 1, wherein when the camera (1) is a camera with an adjusting screw, a round hole and a deformation groove which are matched with the adjusting screw of the camera are formed in the rotary head (5), and when the camera (1) is a camera without the adjusting screw, a V-shaped block is arranged on the rotary head (5) to be matched with camera adjusting rings with different radiuses.
  9. 9. The plug-in camera automatic focusing and diaphragm adjusting device according to claim 1, wherein the motor (6) is a stepping motor or a direct current servo motor, and the control assembly comprises a singlechip and a wireless communication module.
  10. 10. The device for automatically focusing and adjusting the aperture of the external camera according to claim 1, further comprising a remote control component, wherein the remote control component is an entity remote controller or mobile phone APP software, the entity remote controller is provided with a power key, a high-speed/low-speed mode switching key and an adjusting+, adjusting-key, a wireless communication module is built in, and the mobile phone APP software supports Android and iOS systems and is connected with the wireless communication module through Bluetooth or Wi-Fi.

Description

Automatic focusing and diaphragm adjusting device for externally hung camera Technical Field The invention relates to the technical field of camera accessories, in particular to an automatic focusing and diaphragm adjusting device of an externally hung camera. Background In the application field of motion capture systems (abbreviated as "motion capture systems"), a motion capture camera is used as a core data acquisition device, the accuracy and reliability of motion track capture are directly determined by imaging definition, picture frame rate and depth of field control, and the adjustment core of the imaging parameters depends on the accurate setting of focal length and aperture. The main current mobile capturing cameras in the current market have no automatic focusing and automatic light adjusting ring version, the focal length and the light ring are completely dependent on manual operation, and an operator needs to directly rotate an adjusting ring of a camera lens to complete parameter setting. From the practical application scene, in order to realize full-angle motion capture coverage without dead angles, the dynamic capture cameras are usually required to be densely arranged around a capture site and on a truss at the top, and the installation positions of partial cameras are even more than 3 meters. The high-altitude arrangement mode causes extremely inconvenient adjustment of camera parameters, operators need to approach the cameras by means of ascending equipment (such as scaffolds and scaling ladders), safety risks of high-altitude operation exist, an operation space is narrow, the cameras are easy to collide in the adjustment process to cause mounting position offset, capturing precision is further affected, the camera gestures are further required to be recalibrated, and operation complexity is further increased. More importantly, in order to ensure the capturing precision and coverage range of the dynamic capturing system, 3 to 16 or more dynamic capturing cameras need to be deployed for single use, and the focal length and aperture parameters of each camera need to be respectively adjusted according to the capturing scene (such as the moving speed of a capturing object, the illumination condition of a field, the capturing distance and the like). The traditional manual adjustment mode has the defects of extremely large workload and long time consumption, and if the captured scene changes, the complicated adjustment flow is repeated, so that the efficiency and the quality of the dynamic capture work are seriously affected. In the prior art, an external lens adjusting device is also arranged, and in the utility model patent 'a novel automatic focusing device of an industrial camera' (CN 211955952U), a scheme of driving a camera focusing ring by a direct current motor and using a rubber wheel is designed, but the scheme is that the adjusting device is installed on a motor shell opening, the adjusting rubber wheel and the focusing ring are in single-point contact, the contact force is not easy to control, the lens is easy to slip or damage, camera lenses with different types and different calibers cannot be compatible, and the diversified use requirements of users are difficult to meet. At present, no solution for an automatic focusing and dimming ring suitable for a dynamic capturing scene exists, so that an externally hung automatic focusing and dimming ring mechanism with strong universality, high adjusting precision and remote control is needed to solve the defects in the prior art. Disclosure of Invention Aiming at the problems that the camera shell is damaged, the universality is poor, the adjusting contact force is not easy to control and the like in the adjustment of the focal length and the aperture of the camera, the invention aims to provide the automatic focusing and aperture adjusting device for the externally hung camera, which adopts motor driving to realize automatic and accurate adjustment of the focal length and the aperture, supports remote control operation, is suitable for cameras with various models, is convenient to install and detach, and reduces the use cost of users. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The externally hung automatic focusing and light adjusting ring device for the camera comprises a fixed component 2, a locking component 3, a supporting component 4, an adjusting component and a driving component, wherein the fixed component 2 is detachably arranged on the camera 1 through the locking component 3, the driving component is a motor 6, the adjusting component comprises a rotating head 5, a speed reducer 7, a pinion 8, a gear disc 9, a fixed seat 10 and a sliding block 11, an arc guide rail is arranged on the front side of the gear disc 9, internal teeth are arranged on the inner side of the gear disc 9, the fixed seat 10 is slidably arranged on the arc guide rail through the sliding block 11, the