High-stability pan-tilt camera
By designing a stabilization unit in the gimbal camera, including a compensation slider, a reverse airflow cancellation box and a heating component, the problems of camera bump, lens fog and center of gravity during the flight of the drone are solved, and the shooting effect with high stability and high definition is achieved.
Patent Information
- Application Number
- CN202411753500.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2044-12-02
AI Technical Summary
The gimbal camera loaded on the drone generates airflow due to the rotation of the wings, causing the camera to bump and cause the picture to shake; during the drone's height change, the temperature changes cause the lens to fog, reducing the picture clarity; and when optical zooming, the change in the center of gravity of the original camera needs to be leveled and calibrated, which affects the shooting effect.
A high-stable gimbal camera is designed, and a stabilizing unit including a loading stabilization mechanism, a gimbal stabilization mechanism and a shooting stabilization mechanism are adopted. The loading stabilization mechanism automatically cancels the change in the center of gravity generated by lens zoom by compensation slider and compensation stabilization ring; the gimbal stabilization mechanism cancels airflow interference through the reverse airflow cancellation box and the active airflow cancellation fan; the shooting stabilization mechanism achieves the defogging effect through the heating assembly and the vortex airflow generation hole.
It realizes that during the drone flight, the camera bump and lens fog are reduced, and the shooting picture stability and clarity are improved; the center of gravity changes generated by lens zoom are automatically offset, reducing the need for repeated calibration, and improving the leveling efficiency of the gimbal motor.
Smart Images

Figure CN119629478A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of pan / tilt cameras, and in particular to a high-stability pan / tilt camera. Background Art
[0002] A PTZ camera is a camera with a PTZ. The camera can be rotated in both horizontal and vertical directions through the PTZ motor. Therefore, mounting the camera on the PTZ can expand the shooting angle, and the horizontal and vertical rotation angles can be limited by the limit switch on the motor installed in the PTZ.
[0003] Among them, the gimbal camera mounted on the drone often needs to fly to high altitudes to form bird's-eye view and tracking images. However, during the operation of the drone itself, the rotation of the wings generates airflow, causing the camera to shake and the picture to shake. In addition, during the change of the drone's altitude, there are temperature changes, which cause the camera lens to fog and reduce the clarity of the captured picture. In addition, when the gimbal camera performs optical zoom to extend the lens, the center of gravity of the original camera will change. It needs to be leveled and calibrated after zooming to prevent the motor in the gimbal from maintaining the original leveling state, causing the picture to tilt downward and affecting the shooting effect. Summary of the invention
[0004] The purpose of the present invention is to solve the problems that the shooting picture of the pan-tilt camera mounted on the unmanned aerial vehicle will be bumped due to the airflow generated by the rotation of the wings, causing the camera to shake, and the temperature changes during the altitude change of the unmanned aerial vehicle, causing the camera lens to fog and reduce the clarity of the shooting picture, and when the pan-tilt camera performs optical zoom to extend the lens, the center of gravity of the original camera will change, and it is necessary to perform leveling and calibration after zooming to avoid the motor in the pan-tilt to maintain the original leveling state, causing the picture to tilt downward and affecting the shooting effect. A high-stability pan-tilt camera is proposed.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A high-stability pan-tilt camera, comprising a pan-tilt bracket for drone photography, the pan-tilt bracket controlling the pan-tilt state through pan-tilt motors in both horizontal and vertical directions, a zoom camera fixedly mounted at the bottom of the pan-tilt bracket, a stabilization unit arranged in the pan-tilt bracket, the stabilization unit being used to stabilize the shooting picture of the zoom camera, and the stabilization unit consisting of a loading stabilization mechanism, a pan-tilt stabilization mechanism and a shooting stabilization mechanism; The loading stabilization mechanism comprises a loading base arranged at the bottom of the pan / tilt bracket, a stabilization compensation seat is arranged at the top of the loading base, a leveling judgment module is arranged at the top of the stabilization compensation seat, a compensation slider is arranged inside the stabilization compensation seat, and a compensation stabilization ring which is sleeved on the frame of the zoom lens of the zoom camera is arranged at the bottom of the compensation slider; The pan / tilt stabilization mechanism comprises a mounting frame arranged on the top of the pan / tilt bracket, the mounting frame is provided with a reverse airflow compensation box located above the zoom camera lens, two active airflow compensation fans arranged front and back are rotatably connected in the reverse airflow compensation box, and the two active airflow compensation fans are respectively driven by two servo motors arranged on the side of the reverse airflow compensation box to rotate in opposite directions; The shooting stabilization mechanism comprises a heating component arranged inside a compensation stabilization ring, and the compensation stabilization ring is connected with a reverse airflow compensation box through a guide pipe.
[0006] Preferably, a grating capture transmitting end is provided on the top of the stable compensation seat, and the leveling judgment module is composed of a grating capture receiving end adapted to the grating capture transmitting end, a liquid leveling float and a leveling judgment box, and the grating capture receiving end is located below the liquid leveling float, and the leveling judgment module works when the UAV has no acceleration.
[0007] Preferably, a counterweight slider is movably connected inside the stable compensation seat, and the counterweight slider moves in opposite directions to the compensation slider through a matching gear.
[0008] Preferably, a counteracting hole and an airflow guiding groove are arranged above the reverse airflow counteracting box, and a guide cover fixedly mounted on the outer surface of the mounting frame is arranged at the bottom of the reverse airflow counteracting box.
[0009] Preferably, the two active airflow cancelling fans are symmetrically arranged, and the two servo motors control the two active airflow cancelling fans to rotate in opposite directions through a meshing gear set.
[0010] Preferably, a driven airflow cancelling fan is rotatably arranged in the reverse airflow cancelling box, and the rotation of the driven airflow cancelling fan is driven by the cancelling airflow generated by the rotation of the active airflow cancelling fan.
[0011] Preferably, the guide pipe is composed of a reverse airflow compensation pipe connected to the bottom of the reverse airflow compensation box, a movable closed pipe and a negative pressure pipe connected to the top of the compensation stabilization ring, and the reverse airflow compensation pipe, the movable closed pipe and the negative pressure pipe are connected through a bent pipe.
[0012] Preferably, a vortex airflow generating hole is provided in the compensation stabilization ring, and the vortex airflow generating hole is provided between the heating component and the zoom lens of the zoom camera.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By using the compensation stabilization ring equipped with a compensation slider in conjunction with the counterweight slider, the center of gravity changes caused by the optical zoom can be automatically offset by the counterweight slider during the continuous conversion of the zoom camera between the short-focus lens and the telephoto lens, so that the center of gravity remains at the initial center of gravity. There is no need to repeatedly calibrate the center of gravity position of the zoom camera, which increases the workload of the pan / tilt electric leveling, thereby improving the leveling efficiency of the pan / tilt motor.
[0014] 2. By coordinating the leveling judgment module with the grating capture transmitter, based on the light refraction angle, the activity range of the liquid leveling float in the leveling judgment module is limited, that is, the inclination angle of the stable compensation seat is limited. In this way, during the process of offsetting the center of gravity of the zoom camera, it is possible to quickly judge whether the grating infrared light is blocked during the leveling process of the pan-tilt camera and whether it remains in a horizontal state, and promptly remind the staff to replace the excessively worn counterweight slider.
[0015] 3. By using the reverse airflow cancellation box equipped with the active airflow cancellation fan and the driven airflow cancellation fan in conjunction with the guide cover, an upward airflow can be generated to offset the downward airflow during the flight of the drone, reduce the resulting turbulence, and achieve the purpose of improving the shooting stability of the zoom camera.
[0016] 4. By using the compensation stabilization ring equipped with a heating component and a reverse airflow offset box, when water mist appears on the camera screen, the heating component can be turned on to form a vortex airflow, which is evenly distributed on the lens surface of the zoom camera. This allows the lens to be evenly heated while removing dust on the surface, providing protection for the zoom camera, achieving the purpose of active defog for the zoom camera and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the overall structure of a high-stability pan-tilt camera proposed by the present invention; Figure 2 This is an overall structural assembly view of a high-stability pan-tilt camera proposed by the present invention; Figure 3 For the present invention Figure 2 A magnified view of the structure at center A; Figure 4 A schematic diagram of the internal structure of a cross section of a stabilization unit of a high-stability pan-tilt camera proposed by the present invention; Figure 5 A schematic diagram of a cross-sectional view of a mounting base for a high-stability pan-tilt camera proposed by the present invention; Figure 6 A schematic diagram of the internal structure of a cross-sectional view of a mounting base of a high-stability pan-tilt camera proposed by the present invention; Figure 7A schematic diagram of the internal structure of a reverse airflow compensation box and a compensation stabilization ring cross-sectional viewing angle of a high-stability pan-tilt camera proposed by the present invention; Figure 8 This is a schematic diagram of the internal structure of the second cross-sectional viewing angle of the compensation stabilization circle of a high-stability pan-tilt camera proposed by the present invention.
[0018] In the figure: 1. pan / tilt bracket; 2. zoom camera; 3. loading base; 31. stable compensation seat; 32. leveling judgment module; 321. grating capture receiving end; 322. liquid leveling float; 323. leveling judgment box; 33. compensation slider; 34. counterweight slider; 341. matching gear; 4. mounting frame; 41. reverse airflow offset box; 411. offset hole; 412. airflow guide groove; 413. drainage cover; 42. active airflow offset fan; 43. servo motor; 431. meshing gear set; 44. driven airflow offset fan; 5. compensation stabilization ring; 51. guide tube; 511. reverse airflow offset tube; 512. movable closed tube; 513. negative pressure tube; 52. vortex airflow generating hole. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] Example, see Figures 1 to 8 A high-stability pan-tilt camera comprises a pan-tilt bracket 1 for drone photography, the pan-tilt bracket 1 controls the pan-tilt state through pan-tilt motors in two directions, horizontal and vertical, and a zoom camera 2 is fixedly mounted on the bottom of the pan-tilt bracket 1, a stabilization unit is arranged in the pan-tilt bracket 1, the stabilization unit is used to stabilize the shooting picture of the zoom camera 2, and the stabilization unit is composed of a loading stabilization mechanism, a pan-tilt stabilization mechanism and a shooting stabilization mechanism; It should be noted that the pan / tilt camera used in the present application is an existing optical zoom zoom camera 2. After the zoom camera 2 is fixedly mounted on the bottom of the pan / tilt bracket 1, the pan / tilt motor is started to automatically adjust the camera angle of the zoom camera 2. This is a prior art and will not be described in detail in the subsequent description. Based on the above, the stabilization unit can adjust the camera center of gravity of the zoom camera 2 during the zooming process by loading the stabilization mechanism to ensure the stability of its loading; then the pan-tilt stabilization mechanism can generate a reverse offset airflow to offset the airflow generated by the flight of the drone on the top of the zoom camera 2, thereby reducing the interference of the downward airflow on the camera image of the zoom camera 2; during this period, the shooting stabilization mechanism can be used to remove the water mist phenomenon that appears on the lens of the zoom camera 2 due to changes in temperature during the lifting process, thereby providing a highly stable shooting environment for the zoom camera 2.
[0023] like Figure 4 and Figure 5 As shown, the loading stabilization mechanism includes a loading base 3 arranged at the bottom of the pan / tilt bracket 1, a stabilization compensation seat 31 is arranged on the top of the loading base 3, a leveling judgment module 32 is arranged on the top of the stabilization compensation seat 31, a compensation slider 33 is arranged inside the stabilization compensation seat 31, and a compensation stabilization ring 5 which is mounted on the zoom lens frame of the zoom camera 2 is arranged at the bottom of the compensation slider 33.
[0024] It should be noted that the zoom camera 2 is located below the loading base 3 and is installed by fixing bolts or clamping devices. The leveling judgment module 32 is arranged on the top of the loading base 3. It judges whether the zoom camera 2 is level when the drone is stationary or hovering and traveling at a constant speed, and compensates and adjusts the center of gravity change caused by the lens during the zooming process through the compensation slider 33. Furthermore, a grating capture transmitting end is provided on the top of the stabilizing compensation seat 31, and the leveling judgment module 32 is composed of a grating capture receiving end 321 adapted to the grating capture transmitting end, a liquid leveling float 322 and a leveling judgment box 323, and the grating capture receiving end 321 is located below the liquid leveling float 322. The leveling judgment module 32 works when the UAV has no acceleration, that is, when the UAV is in a stationary, hovering and uniform speed driving state without weightlessness or overweight.
[0025] It should be noted that: based on the grating capture principle, after the zoom camera 2 is installed at the bottom of the stable compensation seat 31, infrared light is emitted by the grating capture transmitting end and received by the grating capture receiving end 321, completing the signal receiving operation of the leveling judgment module 32, and the diameter range set by the two is used as the activity range of the liquid leveling float 322. When the zoom camera 2 is tilted, the liquid leveling float 322 will be out of this activity range, blocking the infrared light, that is, the zoom camera 2 is not in a horizontal state at this time, so that it can be convenient to judge whether the pan-tilt camera leveling process is kept in a horizontal state, and timely remind the staff to replace the excessively worn counterweight slider 34; Furthermore, the internal movably connected stabilizing and compensating seat 31 is provided with a counterweight slider 34, which moves in opposite directions from the compensating slider 33 via a mating gear 341, and the mating gear 341 is rotatably arranged inside the stabilizing and compensating seat 31 and meshes with a rack arranged on the opposite side of the counterweight slider 34 and the compensating slider 33.
[0026] It should be noted that: Figure 6 As shown, when the lens of the zoom camera 2 performs optical zoom, the lens will be displaced relative to the installation part of the zoom camera 2. At this time, the compensating stabilizing ring 5 is sleeved on the zoom lens, which can reversely drive the matching gear 341 to drive the counterweight slider 34 to move in the opposite direction, thereby offsetting the center of gravity shift effect of the zoom camera 2 during telephoto shooting, so that the center of gravity of the zoom camera 2 is still maintained at the initial center of gravity. Similarly, when the zoom camera 2 is short-focus shooting, the center of gravity is adjusted by the counterweight slider 34 to keep the center of gravity at the initial center of gravity, thereby automatically offsetting the center of gravity change caused by the optical zoom of the zoom camera 2, and there is no need to repeatedly calibrate the center of gravity position of the zoom camera 2, which increases the leveling workload of the pan / tilt motor, thereby improving the leveling efficiency of the pan / tilt motor. Based on the above, if Figure 6 As shown, the counterweights of the counterweight slider 34 and the compensation slider 33 are relatively arranged on the left and right sides, and the meshing parts of the two and the matching gear 341 are hollowed out, which will not affect the change of the center of gravity of the stable compensation seat 31, and the weight of the counterweight of the counterweight slider 34 is equal to the weight of the counterweight of the compensation slider 33 plus the weight of the zoom camera 2, so that when the compensation slider 33 and the counterweight slider 34 move equidistantly, the initial center of gravity of the stable compensation seat 31 is not changed, so that when the compensation slider 33 drives the matching gear 341 to rotate, the counterweight slider 34 after sliding can offset the change of the center of gravity caused by the change of the focal length of the zoom lens.
[0027] like Figure 7As shown, the pan / tilt stabilization mechanism includes a mounting frame 4 arranged on the top of the pan / tilt bracket 1, and a reverse airflow compensation box 41 is arranged on the mounting frame 4 above the lens portion of the zoom camera 2. Two active airflow compensation fans 42 arranged front and back are rotatably connected in the reverse airflow compensation box 41, and the two active airflow compensation fans 42 are respectively driven by two servo motors 43 arranged on the sides of the reverse airflow compensation box 41 to rotate in opposite directions.
[0028] It should be noted that: during the shooting process of the zoom camera 2, the active airflow compensation fan 42 is driven to rotate by the servo motor 43, an airflow in the opposite direction is generated on the top of the reverse airflow compensation box 41, and the downward airflow is driven outward, thereby reducing the interference of the downward airflow on the zoom camera 2.
[0029] Furthermore, a compensation hole 411 and an airflow guide groove 412 are provided above the reverse airflow compensation box 41, and a guide cover 413 fixedly installed on the outer surface of the mounting frame 4 is provided at the bottom of the reverse airflow compensation box 41, so that the airflow on the surface of the guide cover 413 can be accelerated to flow outward on the upper side of the reverse airflow compensation box 41, and generated by the rotation of the active airflow compensation fan 42. The two active airflow compensation fans 42 are symmetrically arranged, and the two servo motors 43 control the two active airflow compensation fans 42 to rotate in opposite directions through the meshing gear set 431.
[0030] It should be noted that an air circulation space is provided in the central area of the reverse airflow compensation box 41. During the reverse rotation of the active airflow compensation fan 42, an upward airflow can be generated in the air circulation space through the active airflow compensation fan 42, and this airflow, i.e., the reverse airflow, can offset the downward airflow generated during the flight of the drone, and at the airflow guide groove 412, the air flow at the top of the deflection cover 413 is accelerated, so that the downwardly blown airflow flows to a farther distance through the deflection cover 413, thereby improving the stability of the gimbal bracket 1 during shooting and improving the shooting quality.
[0031] Based on the above, a driven airflow cancelling fan 44 is rotatably arranged in the reverse airflow cancelling box 41, and the rotation of the driven airflow cancelling fan 44 is driven by the rotation of the active airflow cancelling fan 42 to generate a cancelling airflow; It should be noted that: when the active airflow canceling fan 42 rotates, the generated canceling airflow can drive more driven airflow canceling fans 44 to rotate, accelerate and disperse the downward airflow generated by the drone in multiple directions, and avoid the downward airflow directly acting on the gimbal part of the zoom camera 2, thereby enhancing the reverse airflow canceling box 41's ability to cancel the drone's flying airflow.
[0032] like Figure 8As shown, the shooting stabilization mechanism includes a heating component arranged inside the compensation stabilization ring 5, the compensation stabilization ring 5 is connected to the reverse airflow compensation box 41 through a guide tube 51, and a vortex airflow generating hole 52 is arranged in the compensation stabilization ring 5, and the vortex airflow generating hole 52 is arranged between the heating component and the zoom lens of the zoom camera 2.
[0033] It should be noted that when the reverse airflow offset box 41 generates an upward airflow driving force, it guides the airflow in the guide tube 51 to generate a reverse airflow passing through the heating component, and when water mist appears on the camera screen, the remote control is manually controlled to turn on the existing heating component such as an electric heating coil to heat the airflow and accelerate the evaporation of the water mist, thereby achieving the purpose of actively defogging the zoom camera 2; Based on the above, if Figure 7 As shown in the airflow flow path in, the single dotted line and the guide arrow are the offset airflow generated by the reverse airflow offset box 41 and its flow direction, and the double dotted line and the guide arrow are the airflow generated downward by the drone and the passive airflow flow direction after being guided by the drainage cover 413 and the airflow; Based on the above, the two servo motors 43 arranged on the front and rear sides respectively drive the active airflow compensation fan 42 to rotate in opposite directions, thereby generating an upward compensation airflow, and driving the driven airflow compensation fan 44 arranged on the left and right sides to rotate synchronously, thereby forming a Figure 7 The offsetting airflow of the single dashed line flow shown in ; A further advantage of adopting the above method is that when the negative pressure inside the guide tube 51 generates suction on the vortex airflow generating hole 52, it drives the external air to form a vortex airflow, so that the heated airflow can be evenly spread on the lens surface of the zoom camera 2, so that the lens is evenly heated, thereby providing protection for the zoom camera 2 and extending its service life.
[0034] Furthermore, the guide pipe 51 is composed of a reverse airflow compensation pipe 511 connected to the bottom of the reverse airflow compensation box 41, a movable closed pipe 512 and a negative pressure pipe 513 connected to the top of the compensation stabilization ring 5, and the reverse airflow compensation pipe 511, the movable closed pipe 512 and the negative pressure pipe 513 are connected through a bent pipe.
[0035] It should be noted that: when the compensation stabilization ring 5 moves with the zoom lens, the movable closing tube 512 can ensure the connection between the reverse airflow offset tube 511 and the negative pressure tube 513, so that there is always a vortex negative pressure airflow in the compensation stabilization ring 5, and the lens surface is dust-free to prevent dust from adhering to the lens surface and affecting the shooting effect.
[0036] Working principle: When improving the shooting stability of the zoom camera 2, the present invention is divided into three processes: center of gravity compensation stabilization of the zoom camera 2, pan / tilt airflow offset stabilization and water mist dust removal stabilization. The center of gravity compensation stabilization process of the zoom camera 2 is: after the zoom camera 2 is loaded on the bottom of the pan / tilt bracket 1, the compensation stabilization ring 5 is sleeved on the zoom lens frame of the zoom camera 2, and moves with the lens change, thereby driving the compensation slider 33 to move synchronously, so that the counterweight slider 34 is opposite to the movement direction of the lens, so that the center of gravity of the zoom camera 2 is maintained at the initial center of gravity when the short-focus lens and the long-focus lens are switched to shoot, and the center of gravity change caused by the optical zoom of the zoom camera 2 is automatically offset. There is no need to repeatedly calibrate the center of gravity position of the zoom camera 2 to increase the leveling workload of the pan / tilt motor, thereby improving the leveling efficiency of the pan / tilt motor.
[0037] Based on the above, the process of stabilizing the airflow offset of the pan / tilt of the zoom camera 2 is as follows: when the fan blades of the drone rotate and a downward airflow is generated to the pan / tilt, the servo motor 43 is started to drive the active airflow offset fan 42 to rotate, so that the reverse airflow offset box 41 generates an upward offset airflow, thereby reducing the interference of the downward airflow on the zoom camera 2; Based on the above, further, at the air flow guide groove 412, the air flow at the top of the deflector 413 is accelerated, so that the downwardly blown air flow flows to a farther distance through the deflector 413, and by setting a driven air flow compensation fan 44, the downward air flow generated by the drone can be accelerated and dispersed in multiple directions, avoiding the downwardly blown air flow directly acting on the gimbal part of the zoom camera 2, thereby enhancing the stability of the gimbal bracket 1 during shooting and improving the shooting quality.
[0038] Based on the above, the stabilization process of the water mist dust removal for the zoom camera 2 is as follows: when the reverse airflow offset box 41 generates an upward airflow driving force, the airflow in the guide tube 51 is guided to generate a reverse airflow passing through the heating component, and when the temperature of the lens deviates due to the lifting of the drone in the camera image, causing the water mist to condense, the existing heating component is turned on to heat the airflow, accelerate the evaporation of the water mist, and achieve the purpose of active defogging for the zoom camera 2; Further based on the above, when the negative pressure inside the guide tube 51 generates suction on the vortex airflow generating hole 52, it drives the external air to form a vortex airflow, so that the heated airflow can be evenly spread on the lens surface of the zoom camera 2, so that the lens is evenly heated, thereby providing protection for the zoom camera 2 and extending its service life.
[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A high-stability pan-tilt camera, comprising a pan-tilt bracket (1) for drone photography, wherein the pan-tilt bracket (1) controls the pan-tilt state through pan-tilt motors in both horizontal and vertical directions, and a zoom camera (2) is fixedly mounted at the bottom of the pan-tilt bracket (1), characterized in that: A stabilization unit is arranged inside the pan / tilt bracket (1), and the stabilization unit is used to stabilize the shooting picture of the zoom camera (2), and the stabilization unit is composed of a loading stabilization mechanism, a pan / tilt stabilization mechanism and a shooting stabilization mechanism; The loading stabilization mechanism comprises a loading base (3) arranged at the bottom of the pan / tilt bracket (1); a stabilization compensation seat (31) is arranged at the top of the loading base (3); a leveling judgment module (32) is arranged at the top of the stabilization compensation seat (31); a compensation slider (33) is arranged inside the stabilization compensation seat (31); and a compensation stabilization ring (5) sleeved on the zoom lens frame of the zoom camera (2) is arranged at the bottom of the compensation slider (33); The pan / tilt stabilization mechanism comprises a mounting frame (4) arranged on the top of the pan / tilt bracket (1); the mounting frame (4) is provided with a reverse airflow compensation box (41) located above the lens of the zoom camera (2); two active airflow compensation fans (42) arranged front and rear are rotatably connected in the reverse airflow compensation box (41); the two active airflow compensation fans (42) are respectively driven by two servo motors (43) arranged on the side of the reverse airflow compensation box (41) to rotate in opposite directions; The shooting stabilization mechanism comprises a heating component arranged inside a compensation stabilization ring (5); the compensation stabilization ring (5) is connected to a reverse airflow compensation box (41) via a guide tube (51).
2. A high-stability PTZ camera according to claim 1, characterized in that: A grating capture transmitting end is arranged on the top of the stabilizing compensation seat (31); the leveling judgment module (32) is composed of a grating capture receiving end (321) adapted to the grating capture transmitting end, a liquid leveling float (322) and a leveling judgment box (323); the grating capture receiving end (321) is located below the liquid leveling float (322); and the leveling judgment module (32) operates when the drone has no acceleration.
3. A high-stability PTZ camera according to claim 1, characterized in that: A counterweight slider (34) is movably connected inside the stable compensation seat (31), and the counterweight slider (34) moves in opposite directions to the compensation slider (33) via a matching gear (341).
4. The high-stability PTZ camera according to claim 1, characterized in that: The reverse airflow offset box (41) is provided with an offset hole (411) and an airflow guide groove (412) above, and the reverse airflow offset box (41) is provided with an airflow guide cover (413) fixedly mounted on the outer surface of the mounting frame (4) at the bottom.
5. A high-stability PTZ camera according to claim 4, characterized in that: The two active airflow cancelling fans (42) are symmetrically arranged, and the two servo motors (43) control the two active airflow cancelling fans (42) to rotate in opposite directions via a meshing gear set (431).
6. A high-stability PTZ camera according to claim 5, characterized in that: A driven airflow cancelling fan (44) is rotatably arranged in the reverse airflow cancelling box (41), and the rotation of the driven airflow cancelling fan (44) is driven by the cancelling airflow generated by the rotation of the active airflow cancelling fan (42).
7. The high-stability PTZ camera according to claim 1, characterized in that: The guide pipe (51) is composed of a reverse airflow compensation pipe (511) connected to the bottom of the reverse airflow compensation box (41), a movable closed pipe (512), and a negative pressure pipe (513) connected to the top of the compensation stabilization ring (5); the reverse airflow compensation pipe (511), the movable closed pipe (512), and the negative pressure pipe (513) are connected via a bent pipe.
8. The high-stability PTZ camera according to claim 1, characterized in that: A vortex airflow generating hole (52) is provided in the compensating stabilizing ring (5), and the vortex airflow generating hole (52) is provided between the heating component and the zoom lens of the zoom camera (2).
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