Tracking camera shooting control method and system of live broadcast holder

Abstract

The invention relates to the technical field of cradle head tracking camera shooting, in particular to a tracking camera shooting control method and system for a live broadcast cradle head, and the system comprises a base, a rotating part, a rotating column, a mounting unit, a camera, a supporting unit, a control module and a rotating assembly. The rotating assembly comprises two clamping rods, a plurality of springback limiting blocks and two damping units, in the rotating process, the rotating column drives the two clamping rods to rotate in the supporting unit, so that the clamping rods continuously move among the multiple springback limiting blocks and make contact with the inclined face to push the multiple springback limiting blocks to be shrunk and sprung back in sequence, and after sudden stop occurs, the rotating column rotates to drive the two clamping rods to rotate. When the camera suddenly stops, the clamping rod loses driving power, at the moment, the clamping rod is not enough to continuously eject the springback limiting blocks to be compressed, then the clamping rod is limited between the two adjacent springback limiting blocks, excessive rotation is avoided, meanwhile, the damping unit buffers the clamping rod, and therefore the springback limiting blocks are used for limiting the camera which suddenly stops, limiting the rotation distance and avoiding excessive rotation.

Description

Technical Field

[0001] The present invention relates to the technical field of pan-tilt tracking camera technology, and in particular to a tracking camera control method and system for a live pan-tilt. Background Art

[0002] Currently, in traditional videography, the shooting equipment is manually held by humans. However, when live broadcasting sports events, such as horse racing, car racing or football, the camera needs to track the target to shoot, so as to achieve the best viewing experience. This equipment is usually large in size and difficult to operate, and manual operation is very labor-intensive.

[0003] In the prior art, a driving self-locking motor is set on the gimbal, and the rotation of the driving self-locking motor is controlled. The driving self-locking motor drives the gimbal to rotate through a driving gear and a driven gear, so that the gimbal can rotate according to the movement of the user, thereby realizing automatic tracking in the horizontal direction, thereby replacing manual automatic rotation adjustment and achieving the effect of tracking camera.

[0004] However, in the aforementioned prior art, when broadcasting intense events, the target being tracked may move quickly and stop suddenly, requiring the gimbal to quickly rotate and stop suddenly to track the target. However, the traditional gimbal does not have a protective structure, but is simply driven by a self-locking motor to rotate. As a result, after the gimbal stops suddenly, the camera of the gimbal may excessively rotate or shake due to inertia, thereby affecting the shooting quality. Summary of the invention

[0005] The purpose of the present invention is to provide a tracking camera control method and system for a live broadcast pan-tilt head, so as to solve the problem in the prior art that after the pan-tilt head stops suddenly, the camera of the pan-tilt head may excessively rotate or shake due to inertia, thereby affecting the shooting quality.

[0006] To achieve the above-mentioned object, the present invention provides a tracking camera system of a live broadcast pan-tilt platform, comprising a base, a rotating component, a rotating column, a mounting unit, a camera, a supporting unit, and a control module rotating assembly, wherein the rotating component is arranged below the base, the output end of the rotating component passes through the base and is rotatably connected to the rotating column, the supporting unit is arranged outside the rotating column, the mounting unit is arranged on the rotating column, the camera is mounted on the mounting unit, and the control module is arranged above the base;

[0007] The rotating assembly includes two clamping rods, multiple rebound limit blocks and two damping units, each of the rebound limit blocks has an inclined surface, the two clamping rods are fixedly connected to the rotating column and are symmetrically distributed on the outside of the rotating column, the multiple rebound limit blocks are distributed around the outside of the two clamping rods in sequence, each of the clamping rods is located between two adjacent rebound limit blocks, and the two damping units are respectively arranged on the corresponding clamping rods.

[0008] Wherein, the mounting unit includes a lifting component, a U-shaped plate, an up and down adjusting component and a mounting block, the lifting component is arranged inside the rotating column, the output end of the lifting component is fixedly connected to the U-shaped plate, the up and down adjusting component is arranged inside the U-shaped plate, one side of the mounting block is rotatably connected to the U-shaped plate, the other side of the mounting block is fixedly connected to the output end of the up and down adjusting component, and the camera is mounted at one end of the mounting block.

[0009] Among them, the supporting unit includes a fixed annular shell, an annular groove and a locking mechanism, the fixed annular shell is fixedly connected to the base and is sleeved on the outside of the rotating column, the annular groove is fixedly connected to the fixed annular shell and is located inside the fixed annular shell, and the locking mechanism is arranged on the rotating column and the clamping rod.

[0010] Wherein, the locking mechanism includes two first electromagnets and a metal ring. The two first electromagnets are respectively fixedly connected to the corresponding clamping rods and are located below the clamping rods. The metal ring is fixedly connected to the rotating column and is sleeved on the outer wall of the rotating column. The first electromagnets and the metal ring attract each other.

[0011] Wherein, the damping unit includes two support plates and a first damping rod, the two support plates are both arranged on the inner bottom wall of the fixed annular shell, and the two ends of the first damping rod are respectively rotatably connected to the corresponding support plates.

[0012] Among them, the rotating assembly also includes two second damping rods, a buffer unit, multiple buffer pads and multiple inclined blocks. The clamping rod has a groove, and the groove is adapted to the inclined surface of the rebound limit block. The two ends of the second damping rod are respectively rotatably connected to the top of the rotating column and the bottom of the U-shaped plate. The buffer unit is arranged above the fixed annular shell, and the multiple buffer pads are symmetrically arranged on both sides of the corresponding clamping rod. The inclined block is installed on each buffer pad, and the inclined block is adapted to the inclined surface.

[0013] In which, the buffer unit includes an arc-shaped slide groove, a slider, a connecting plate, a support block, two balls, a third damping rod and a connecting rod, the arc-shaped slide groove is arranged above the fixed annular shell, the two ends of the connecting plate are respectively fixedly connected to the other end of the mounting block and the support block, the slider is slidably connected to the arc-shaped slide groove, the two balls are respectively clearance-matched with the connecting block and the slider, the two balls are respectively arranged inside the connecting block and the slider, the two ends of the third damping rod are respectively fixedly connected to the corresponding balls, and the two ends of the connecting rod are respectively fixedly connected to the bottom of the slider and the outer wall of the rotating column.

[0014] Wherein, the rotating assembly further comprises a plurality of rebound units, and the plurality of rebound units are sequentially arranged inside the annular groove;

[0015] The rebound unit includes a second electromagnet, a metal groove and two springs. The second electromagnet is fixedly connected to the rebound limit block. The metal groove is arranged on the inner side wall of the annular groove. Both ends of the two springs are movably connected to the rebound limit block and the inner side wall of the annular groove respectively.

[0016] The present invention also provides a tracking camera control method for a live broadcast pan-tilt station, which adopts the tracking camera system for the live broadcast pan-tilt station described above, and comprises the following steps:

[0017] The camera captures the tracking target, and the control module controls the rotation component to operate;

[0018] The rotating component drives the rotating column to rotate, adjusts the rotation direction of the camera, and tracks the target;

[0019] When the rotating column rotates, the clamping rod is driven to contact the inclined surface, pushing the rebound limit block to shrink and rebound, so that the clamping rod moves between the plurality of rebound limit blocks;

[0020] After the camera stops suddenly, the damping unit plays a damping and buffering role, and the clamping rod is limited between the two rebound limit blocks.

[0021] The present invention provides a tracking camera control method and system for a live broadcast pan-tilt platform. After the camera captures the tracking target, the control module controls the operation of the rotating component, and drives the rotating column to rotate through the rotating component, so that the camera rotates. During the rotation process, the rotating column drives the two clamping rods to rotate inside the supporting unit, so that the clamping rod continuously moves between the multiple rebound limit blocks, contacts the inclined surface and pushes the multiple rebound limit blocks to shrink and rebound in sequence. When an emergency stop occurs, the clamping rod loses the driving power, which is not enough to continue to push the rebound limit blocks to compress, and then it will be restricted between two adjacent rebound limit blocks to avoid excessive rotation. At the same time, the damping unit also buffers the clamping rod. Through the above-mentioned structural setting, the camera that stops suddenly is limited by relying on the rebound limit block, the rotation distance is limited, and excessive rotation is avoided. At the same time, under the action of the damping unit, the speed generated by inertia after the emergency stop is slowed down to avoid violent shaking and excessive movement after the emergency stop, thereby greatly improving the shooting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a diagram of the internal structure of the fixed annular shell of the present invention.

[0025] Figure 3 It is a cross-sectional view of the whole of the present invention.

[0026] Figure 4 The present invention Figure 3 AA line section view.

[0027] Figure 5 The present invention Figure 3 Enlarged view of the local structure at point B.

[0028] Figure 6 The present invention Figure 4 Enlarged view of the local structure at location C.

[0029] Figure 7 It is a step flow chart of the tracking camera control method of the live broadcast pan-tilt platform of the present invention.

[0030] 1-base, 2-rotating component, 3-rotating column, 4-camera, 5-control module, 6-clamp rod, 7-rebound limit block, 8-inclined surface, 9-lifting component, 10-U-shaped plate, 11-up and down adjustment component, 12-mounting block, 13-fixed annular shell, 14-annular groove, 15-first electromagnet, 16-metal ring, 17-support plate, 18-first damping rod, 19-second damping rod, 20-buffer pad, 21-inclined block, 22-groove, 23-arc slide groove, 24-slider, 25-connecting plate, 26-support block, 27-sphere, 28-third damping rod, 29-connecting rod, 30-second electromagnet, 31-metal groove, 32-spring. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0032] See also Figures 1 to 6 The present invention provides a tracking camera system for a live broadcast pan-tilt platform, comprising a base 1, a rotating component 2, a rotating column 3, a mounting unit, a camera 4, a supporting unit, a control module 5 and a rotating assembly, wherein the rotating assembly comprises two clamping rods 6, a plurality of rebound limit blocks 7 and two damping units, each of the rebound limit blocks 7 has an inclined surface 8, the mounting unit comprises a lifting component 9, a U-shaped plate 10, an up-and-down adjustment component 11 and a mounting block 12, the supporting unit comprises a fixed annular shell 13, an annular groove 14 and a locking mechanism, and the locking mechanism comprises two first The electromagnet 15 and the metal ring 16, the damping unit includes two support plates 17 and a first damping rod 18, the rotating assembly also includes two second damping rods 19, a buffer unit, a plurality of buffer pads 20 and a plurality of inclined blocks 21, the clamping rod 6 has a groove 22, the buffer unit includes an arc-shaped slide groove 23, a slider 24, a connecting plate 25, a support block 26, two spheres 27, a third damping rod 28 and a connecting rod 29, the rotating assembly also includes a plurality of rebound units, the rebound unit includes a second electromagnet 30, a metal groove 31 and two springs 32.

[0033] Among them, the rotating component 2 is arranged below the base 1, the output end of the rotating component 2 passes through the base 1 and is rotatably connected to the rotating column 3, the supporting unit is arranged outside the rotating column 3, the mounting unit is arranged on the rotating column 3, the camera 4 is installed on the mounting unit, the control module 5 is arranged above the base 1, each of the rebound limit blocks 7 has a slope 8, the two clamping rods 6 are fixedly connected to the rotating column 3 and are symmetrically distributed outside the rotating column 3, a plurality of the rebound limit blocks 7 are distributed around the outside of the two clamping rods 6 in sequence, each of the clamping rods 6 is located between two adjacent rebound limit blocks 7, and the two damping units are respectively arranged on the corresponding clamping rods 6. After the camera 4 captures the tracking target, the control module 5 controls the operation of the rotating component 2, and drives the rotating column 3 to rotate through the rotating component 2, so that the camera 4 rotates. During the rotation process, the rotating column 3 drives the two clamping rods 6 to rotate inside the supporting unit, so that the clamping rod 6 continuously moves between the multiple rebound limit blocks 7, contacts the inclined surface 8, and pushes the multiple rebound limit blocks 7 to shrink and rebound in sequence. When an emergency stop occurs, the clamping rod 6 loses the driving power, which is not enough to continue to push the rebound limit block 7 to compress, and then it will be restricted between the two adjacent rebound limit blocks 7 to avoid excessive rotation. At the same time, the damping unit also buffers the clamping rod 6.

[0034] Secondly, the lifting component 9 is arranged inside the rotating column 3, the output end of the lifting component 9 is fixedly connected to the U-shaped plate 10, the up-down adjusting component 11 is arranged inside the U-shaped plate 10, one side of the mounting block 12 is rotatably connected to the U-shaped plate 10, the other side of the mounting block 12 is fixedly connected to the output end of the up-down adjusting component 11, and the camera 4 is mounted at one end of the mounting block 12. The lifting component 9 is a cylinder, and when the lifting component 9 is started, it drives the U-shaped plate 10 to move up and down to adjust the height, and the up-down adjusting component 11 is a self-locking motor, and when the up-down adjusting component 11 is started, it drives the mounting block 12 to rotate, thereby adjusting the up-down rotation angle of the camera 4.

[0035] At the same time, the fixed annular shell 13 is fixedly connected to the base 1 and sleeved on the outside of the rotating column 3. The annular groove 14 is fixedly connected to the fixed annular shell 13 and is located inside the fixed annular shell 13. The locking mechanism is arranged on the rotating column 3 and the clamping rod 6. The fixed annular shell 13 supports the entire supporting unit, and the annular groove 14 supports the rebound limit block 7. The locking mechanism can lock and fix the rotating column 3 after the rotating column 3 and the camera 4 are completely stopped to avoid deviation.

[0036] In addition, the two first electromagnets 15 are respectively fixedly connected to the corresponding clamping rods 6 and are located below the clamping rods 6. The metal ring 16 is fixedly connected to the rotating column 3 and is sleeved on the outer wall of the rotating column 3. The first electromagnet 15 and the metal ring 16 attract each other. The first electromagnet 15 generates magnetic force when it is energized, and attracts the metal ring 16, thereby limiting the clamping rod 6 and the rotating column 3, so that the camera 4 cannot rotate.

[0037] Then, the two support plates 17 are both arranged on the inner bottom wall of the fixed annular shell 13, and the two ends of the first damping rod 18 are respectively rotatably connected with the corresponding support plates 17. The support plates 17 support the first damping rod 18, and after an emergency stop occurs, the first damping rod 18 plays a buffering role.

[0038] Again, the clamping rod 6 has a groove 22, and the groove 22 is adapted to the inclined surface 8 of the rebound limit block 7. The two ends of the second damping rod 19 are rotatably connected to the top of the rotating column 3 and the bottom of the U-shaped plate 10 respectively. The buffer unit is arranged above the fixed annular shell 13, and the plurality of buffer pads 20 are symmetrically arranged on both sides of the corresponding clamping rod 6. Each buffer pad 20 is installed with the inclined block 21, and the inclined block 21 is adapted to the inclined surface 8. The second damping rod 19 can reduce the shock on both sides of the U-shaped plate 10 to prevent the U-shaped plate 10 from shaking violently to the left and right sides during rapid rotation and emergency stop. The buffer unit can buffer the camera 4 that stops suddenly after up and down adjustment. After the rotating column 3 stops suddenly, when inertia occurs, it drives the clamping rod 6 to move between the two rebound limit blocks 7. At this time, the inclined block 21 contacts the inclined surface 8, and the buffer pad 20 has a buffering effect on the clamping rod 6; in addition, when the clamping rod 6 rotates, the groove 22 can also be adapted to the rebound limit block 7. When the clamping rod 6 stops rotating, if the groove 22 happens to be adapted to the rebound limit block 7, the clamping rod 6 has a limiting effect. If it is not adapted, the buffer pad 20 is used for buffering, and the inclined block 21 is fully in contact with the inclined surface 8 of the rebound limit block 7 to achieve a limiting effect.

[0039] In addition, the arc-shaped slide groove 23 is arranged above the fixed annular shell 13, the two ends of the connecting plate 25 are respectively fixedly connected to the other end of the mounting block 12 and the supporting block 26, the slider 24 is slidably connected to the arc-shaped slide groove 23, the two balls 27 are respectively clearance-matched with the connecting block and the slider 24, the two balls 27 are respectively arranged inside the connecting block and the slider 24, the two ends of the third damping rod 28 are respectively fixedly connected to the corresponding balls 27, and the two ends of the connecting rod 29 are respectively fixedly connected to the bottom of the slider 24 and the outer wall of the rotating column 3. When the rotating column 3 rotates, it drives the connecting rod 29 to rotate, so that the slider 24 slides in the arc-shaped slide groove 23 and rotates synchronously with the camera 4. When the mounting block 12 rotates up and down, it drives the connecting plate 25 to rotate up and down, so that the support block 26 moves up and down, and the corresponding sphere 27 rotates in the support block 26, and the other sphere 27 rotates inside the slider 24. At the same time, the third damping rod 28 follows the extension and retraction. When an emergency stop occurs, the third damping rod 28 can play a damping and buffering role; in addition, the sphere 27 can rotate 360 ​​degrees without dead angles, and then drive the third damping rod 28 to damp and reduce the lateral vibration, thereby further improving the tracking stability of the camera 4.

[0040] Finally, the plurality of rebound units are sequentially arranged inside the annular groove 14; the second electromagnet 30 is fixedly connected to the rebound limit block 7, the metal groove 31 is arranged on the inner wall of the annular groove 14, and both ends of the two springs 32 are movably connected to the rebound limit block 7 and the inner wall of the annular groove 14, respectively. The second electromagnet 30 is energized to generate magnetic force, thereby causing the second electromagnet 30 to disengage from the metal groove 31, so that the rebound limit block 7 cannot shrink by metal, thereby limiting the clamping rod 6 between the two rebound limit blocks 7. At the same time, the buffer pads 20 on both sides of the clamping rod 6 are used for shock absorption to reduce the shaking of the camera 4 above; when the clamping rod 6 needs to be moved, the second electromagnet 30 is powered off, and the rebound limit block 7 can be pushed at this time. In each compression and rebound process, the unenergized second electromagnet 30 is pushed into the metal groove 31, and then after the clamping rod 6 is removed, the rebound limit block 7 is rebounded and reset by the spring 32.

[0041] When using a tracking camera system of a live broadcast pan-tilt platform of the present embodiment, after the camera 4 captures the tracking target, the control module 5 controls the operation of the rotating component 2, and drives the rotating column 3 to rotate through the rotating component 2, so that the camera 4 rotates. During the rotation process, the rotating column 3 drives the two clamping rods 6 to rotate inside the fixed annular shell 13, so that the clamping rod 6 continuously moves between the multiple rebound limit blocks 7, contacts the inclined surface 8 to push the multiple rebound limit blocks 7 to shrink and rebound in sequence. When an emergency stop occurs, the clamping rod 6 loses the driving power, which is not enough to continue to push the rebound limit block 7 to compress, and then it will be restricted between the two adjacent rebound limit blocks 7 to avoid excessive rotation. At the same time, the first damping rod 18 also buffers the clamping rod 6; the second damping rod 19 can dampen the two sides of the U-shaped plate 10 to prevent the U-shaped plate 10 from shaking violently to the left and right during rapid rotation and emergency stop. The buffer unit can adjust the up and down The camera 4 that stops suddenly is buffered. After the rotating column 3 stops suddenly, when inertia occurs, the card rod 6 is driven to move between the two rebound limit blocks 7. At this time, the inclined block 21 contacts the inclined surface 8, and the buffer pad 20 buffers the card rod 6. In addition, when the card rod 6 rotates, the groove 22 can also be adapted to the rebound limit block 7. When the card rod 6 stops rotating, if the groove 22 is just adapted to the rebound limit block 7, the card rod 6 is limited at this time. If not, the buffer pad 20 is used for buffering, and the inclined block 21 is fully in contact with the inclined surface 8 of the rebound limit block 7 to achieve a limiting effect. Through the above-mentioned structural setting, the camera 4 that stops suddenly is limited by relying on the rebound limit block 7 to limit the rotation distance and avoid excessive rotation. At the same time, under the action of the damping unit, the speed generated by inertia after the emergency stop is slowed down to avoid violent shaking and excessive movement after the emergency stop, thereby greatly improving the shooting quality.

[0042] See also Figure 7 The present invention also provides a tracking camera control method for a live broadcast PTZ, comprising the following steps:

[0043] S1: the camera 4 captures the tracking target, and the control module 5 controls the rotating component 2 to operate;

[0044] S2: The rotating component 2 drives the rotating column 3 to rotate, adjusts the rotation direction of the camera 4, and tracks the target;

[0045] S3: When the rotating column 3 rotates, the clamping rod 6 is driven to contact the inclined surface 8, pushing the rebound limit block 7 to shrink and rebound, so that the clamping rod 6 moves between the plurality of rebound limit blocks 7;

[0046] S4: After the camera 4 stops suddenly, the damping unit plays a damping and buffering role, and at the same time, the clamping rod 6 is limited between the two rebound limit blocks 7.

[0047] Among them, the camera 4 captures the tracking target, and the control module 5 controls the operation of the rotating component 2; the rotating component 2 drives the rotating column 3 to rotate, adjusts the rotation direction of the camera 4, and tracks the target; when the rotating column 3 rotates, it drives the clamping rod 6 to contact the inclined surface 8, pushing the rebound limit block 7 to shrink and rebound, so that the clamping rod 6 moves between multiple rebound limit blocks 7; after the camera 4 stops suddenly, the damping unit plays a damping and buffering role, and at the same time, the clamping rod 6 is limited between two rebound limit blocks 7.

[0048] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A tracking camera system for a live broadcast PTZ, comprising a base, a rotating component, a rotating column, a mounting unit, a camera, a supporting unit and a control module, wherein the rotating component is arranged below the base, the output end of the rotating component passes through the base and is rotatably connected to the rotating column, the supporting unit is arranged outside the rotating column, the mounting unit is arranged on the rotating column, the camera is mounted on the mounting unit, and the control module is arranged above the base, characterized in that: Also included is a rotating assembly; The rotating assembly includes two clamping rods, multiple rebound limit blocks and two damping units, each of the rebound limit blocks has an inclined surface, the two clamping rods are fixedly connected to the rotating column and are symmetrically distributed on the outside of the rotating column, the multiple rebound limit blocks are distributed around the outside of the two clamping rods in sequence, each of the clamping rods is located between two adjacent rebound limit blocks, and the two damping units are respectively arranged on the corresponding clamping rods.

2. The tracking camera system of the live broadcast PTZ according to claim 1, characterized in that: The mounting unit includes a lifting component, a U-shaped plate, an up-and-down adjusting component and a mounting block, the lifting component is arranged inside the rotating column, the output end of the lifting component is fixedly connected to the U-shaped plate, the up-and-down adjusting component is arranged inside the U-shaped plate, one side of the mounting block is rotatably connected to the U-shaped plate, the other side of the mounting block is fixedly connected to the output end of the up-and-down adjusting component, and the camera is mounted at one end of the mounting block.

3. The tracking camera system of the live broadcast PTZ according to claim 2, characterized in that: The support unit includes a fixed annular shell, an annular groove and a locking mechanism. The fixed annular shell is fixedly connected to the base and is sleeved on the outside of the rotating column. The annular groove is fixedly connected to the fixed annular shell and is located inside the fixed annular shell. The locking mechanism is arranged on the rotating column and the clamping rod.

4. The tracking camera system of the live broadcast PTZ according to claim 3, characterized in that: The locking mechanism includes two first electromagnets and a metal ring. The two first electromagnets are respectively fixedly connected to the corresponding clamping rods and are located below the clamping rods. The metal ring is fixedly connected to the rotating column and is sleeved on the outer wall of the rotating column. The first electromagnets and the metal ring attract each other.

5. The tracking camera system of the live broadcast PTZ according to claim 4, characterized in that: The damping unit includes two support plates and a first damping rod. The two support plates are both arranged on the inner bottom wall of the fixed annular shell. Both ends of the first damping rod are rotatably connected to the corresponding support plates.

6. The tracking camera system of the live broadcast PTZ according to claim 5, characterized in that: The rotating assembly also includes two second damping rods, a buffer unit, multiple buffer pads and multiple inclined blocks. The clamping rod has a groove, and the groove is adapted to the inclined surface of the rebound limit block. The two ends of the second damping rod are respectively rotatably connected to the top of the rotating column and the bottom of the U-shaped plate. The buffer unit is arranged above the fixed annular shell, and the multiple buffer pads are symmetrically arranged on both sides of the corresponding clamping rod. The inclined block is installed on each buffer pad, and the inclined block is adapted to the inclined surface.

7. The tracking camera system of the live broadcast PTZ according to claim 6, characterized in that: The buffer unit includes an arc-shaped slide groove, a slider, a connecting plate, a support block, two balls, a third damping rod and a connecting rod. The arc-shaped slide groove is arranged above the fixed annular shell, and the two ends of the connecting plate are respectively fixedly connected to the other end of the mounting block and the support block. The slider is slidably connected to the arc-shaped slide groove, and the two balls are respectively clearance-matched with the connecting block and the slider. The two balls are respectively arranged inside the connecting block and the slider, and the two ends of the third damping rod are respectively fixedly connected to the corresponding balls, and the two ends of the connecting rod are respectively fixedly connected to the bottom of the slider and the outer wall of the rotating column.

8. The tracking camera system of the live broadcast PTZ according to claim 7, characterized in that: The rotating assembly further comprises a plurality of rebound units, and the plurality of rebound units are sequentially arranged inside the annular groove; The rebound unit includes a second electromagnet, a metal groove and two springs. The second electromagnet is fixedly connected to the rebound limit block. The metal groove is arranged on the inner side wall of the annular groove. Both ends of the two springs are movably connected to the rebound limit block and the inner side wall of the annular groove respectively.

9. A tracking camera control method for a live broadcast PTZ, using the tracking camera system for a live broadcast PTZ as claimed in claim 8, characterized in that: The steps include: The camera captures the tracking target, and the control module controls the rotation component to operate; The rotating component drives the rotating column to rotate, adjusts the rotation direction of the camera, and tracks the target; When the rotating column rotates, the clamping rod is driven to contact the inclined surface, pushing the rebound limit block to shrink and rebound, so that the clamping rod moves between the plurality of rebound limit blocks; After the camera stops suddenly, the damping unit plays a damping and buffering role, and the clamping rod is limited between the two rebound limit blocks.

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