Long-focal-length monitoring camera automatic adjusting platform and control method

Abstract

The invention discloses an automatic leveling platform for a long-focal-length monitoring camera and a control method, and relates to the field of monitoring equipment. According to the invention, the problems of position deviation and even incapability of normally capturing the target when the monitoring camera locates and tracks the target due to inclination of the tower body are solved. The automatic leveling platform comprises a monitoring tower, a base, a leveling lifting support arm group, a rotating platform, a turntable attitude sensor and a controller, the base is fixed on a monitoring tower, the leveling lifting support arm group is arranged on the base, a rotating platform is arranged on the leveling lifting support arm group, and the turntable attitude sensor is mounted on the rotating platform; the controller is connected with the leveling lifting supporting arm set and used for controlling stretching and retracting of the high-precision leveling lifting supporting arm set according to data of the rotary table posture sensor. And a long-focal-length monitoring camera is arranged on the rotating platform. The method is applied to the security field.

Description

Technical Field

[0001] The invention relates to the field of monitoring equipment, and in particular to an automatic adjustment platform for a long-focal-length monitoring camera. Background Art

[0002] With the continuous improvement of social security needs, video surveillance equipment has been widely used in various fields. Long-focal-length surveillance cameras are widely used because they can capture high-definition images at a long distance. However, such cameras are usually equipped with a heavy-duty turntable. When installed on a surveillance tower, the turntable is prone to tilt due to factors such as wind, loose tower structure, and frozen ground. The tower tilt caused by the above reasons cannot be corrected in time in daily life, and the tower tilt caused by frozen ground cannot be corrected. The tilt of the tower will cause the surveillance camera to have position deviation when locating and tracking the target, or even fail to capture the target normally.

[0003] Therefore, a mechanism that can automatically level is needed to ensure the relative horizontal position of the camera is stable so as to ensure the stability of the positioning and tracking of the target. At the same time, the leveling mechanism needs to have a load-bearing capacity of ≥100Kg under the smallest possible volume constraint, and requires relatively fast computing power and an efficient driving mechanism to control the leveling mechanism so that it can quickly respond to changes in the turntable attitude sensor and adjust the device to a horizontal state. However, rapid response is often accompanied by stability issues. If the control is improper, the device may oscillate or overshoot during the adjustment process, and the ideal leveling effect cannot be achieved. Therefore, how to find a balance between rapid response and stability is an important challenge in automatic leveling technology. Summary of the invention

[0004] Aiming at the problem that the tilt of the tower body may cause the monitoring camera to have position deviation when locating and tracking the target, or even fail to capture the target normally, the present invention proposes an automatic adjustment platform for a long focal length monitoring camera, the automatic adjustment platform comprising:

[0005] Monitoring tower, base, leveling lifting support arm set, rotating platform, turntable attitude sensor and controller;

[0006] The base is fixed on the monitoring tower, the leveling and lifting support arm group is arranged on the base, a rotating platform is provided on the leveling and lifting support arm group, and the turntable attitude sensor is installed on the rotating platform; the controller is connected to the leveling and lifting support arm group, and is used to control the extension and retraction of the high-precision leveling and lifting support arm group according to the data of the turntable attitude sensor; a long-focal-length monitoring camera is provided on the rotating platform.

[0007] Furthermore, a preferred embodiment is proposed, wherein the leveling lifting support arm group is composed of six sets of independently controlled high-torque DC brushless motor-driven worm gear lifting arms, which are distributed in a six-equally divided circle on the base of the automatic leveling mechanism.

[0008] Furthermore, a preferred embodiment is proposed, in which the leveling lifting support arm assembly is made of high-strength aluminum alloy material.

[0009] Furthermore, a preferred embodiment is proposed, in which the turntable attitude sensor includes a gyroscope and an accelerometer for detecting the tilt state of the turntable.

[0010] Based on the same inventive concept, the present invention also proposes a control method for an automatic adjustment platform of a long focal length surveillance camera, the method is implemented based on the automatic adjustment platform of a long focal length surveillance camera described in the claims, and the method comprises:

[0011] S1: The turntable attitude sensor detects the tilt angle of the rotating platform in real time and sends the detected angle data to the controller in real time;

[0012] S2: The controller receives data from the turntable attitude sensor and determines whether the turntable is tilted according to whether the horizontal inclination angle fed back by the turntable attitude sensor exceeds a preset threshold range;

[0013] S3: If the rotating platform is detected to be tilted, the controller calculates the amount of adjustment required according to the current tilt angle, controls the leveling lifting support arm group to perform the adjustment operation, and the leveling lifting support arm group is adjusted according to the calculated adjustment amount until the turntable returns to a horizontal position.

[0014] Furthermore, a preferred embodiment is proposed, wherein step S3 comprises:

[0015] When the attitude sensor detects that the horizontal inclination angle is greater than 0.05°, the controller calculates the adjustment step of each support arm through the PID algorithm;

[0016] The controller then drives the motor to control the leveling lifting support arm group to perform telescopic adjustment so that the rotating platform 3 returns to the level.

[0017] Furthermore, a preferred embodiment is proposed, wherein step S3 further comprises:

[0018] After the adjustment operation is completed, the controller continuously monitors the real-time data of the rotating platform attitude sensor;

[0019] If the sensor's horizontal inclination value stabilizes at ≤0.005° within 30 seconds, it means the platform has recovered to a sufficiently horizontal state, and the controller stops the automatic leveling action.

[0020] Based on the same inventive concept, the present invention also proposes a computer device, including a memory and a processor, wherein the memory stores a computer program. When the processor runs the computer program stored in the memory, the processor executes a control method for automatically adjusting the platform of a long-focal-length surveillance camera as described in any one of the above items.

[0021] Based on the same inventive concept, the present invention also proposes a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of a control method for automatically adjusting a platform of a long-focal-length surveillance camera as described above are executed.

[0022] The present invention is beneficial in that:

[0023] In the existing monitoring system, the tilt of the monitoring tower will cause the position deviation between the monitoring camera and the target, which will affect the positioning and tracking accuracy of the camera, and even cause the target to be unable to be captured normally. The present invention proposes an automatic adjustment platform for a long-focal-length monitoring camera, which can automatically adjust the posture of the monitoring camera according to the tilt of the tower body by cooperating with the leveling lifting support arm group and the rotating platform to ensure that the camera is always in the best working position. This automatic leveling function significantly improves the adaptability of the monitoring system in a dynamic environment and avoids monitoring blind spots or misalignment caused by the tilt of the tower body.

[0024] The inclination angle of the tower body and the rotation of the monitoring platform are often inconsistent, which makes it difficult for the monitoring camera to accurately track the target, especially when long-term stable monitoring is required. The present invention introduces a turntable attitude sensor to monitor the attitude changes of the rotating platform in real time and promptly feedback the tilt or offset data. Based on these data, the controller accurately controls the extension and retraction of the leveling lifting support arm group so that the camera's attitude can be automatically adjusted to the correct angle. This precise attitude control system ensures that the monitoring camera can always aim at the target at the best angle and position, improving the stability and accuracy of target positioning and tracking.

[0025] When traditional monitoring towers are affected by external forces such as wind and earthquakes, they often rely on manual adjustments, which are not timely or accurate, resulting in long-term instability of the monitoring equipment. The controller in the present invention can automatically adjust the extension and retraction of the leveling lifting support arm group based on the data fed back by the turntable attitude sensor. This highly automated adjustment mechanism greatly reduces the need for human intervention and improves the stability and continuous monitoring capabilities of the system in complex environments.

[0026] Monitoring towers are often deployed in harsh environments, such as areas with high temperature, high humidity, and strong winds. These factors may cause the tower to tilt, affecting the normal operation of the monitoring camera. The long-focal-length monitoring camera automatic adjustment platform proposed in the present invention can adapt to various environmental changes, especially the ability to correct the tilt of the monitoring tower, by combining an automatic leveling lifting support arm group and a high-precision attitude sensor. This greatly improves the stability of the system in bad weather or external interference, and ensures long-term efficient monitoring.

[0027] When a surveillance camera is capturing a moving target, especially in the case of long-distance monitoring, any slight deviation may cause the target to disappear or deviate from the field of view. By combining automatic leveling and data feedback from a high-precision attitude sensor, the present invention enables the system to adjust the camera's positioning angle in a timely manner when the tower body tilts or undergoes other changes, ensuring that the camera can always accurately track the target. This adjustment is particularly important for long-focal-length cameras, as it can avoid errors caused by the tilt of the tower body and improve the clarity and accuracy of long-distance monitoring.

[0028] The invention is applied to the field of security. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Schematic diagram of the automatic platform adjustment structure of a long focal length surveillance camera according to the first embodiment; wherein 1 represents a base, 2 represents a leveling lifting support arm group, 3 represents a rotating platform, 4 represents a turntable attitude sensor, and 5 represents a controller;

[0030] Figure 2 This is a schematic diagram of the structure of the fifth embodiment. Figure 1 A flow chart of a control method for automatically adjusting the platform of a long focal length surveillance camera. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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, not all of the embodiments.

[0032] Implementation method 1, see Figure 1 The present embodiment describes an automatic adjustment platform for a long focal length surveillance camera, the automatic adjustment platform comprising:

[0033] Monitoring tower, base 1, leveling lifting support arm set 2, rotating platform 3, turntable attitude sensor 4 and controller 5;

[0034] The base 1 is fixed on the monitoring tower, the leveling lifting support arm group 2 is arranged on the base 1, a rotating platform 3 is provided on the leveling lifting support arm group 2, and the turntable attitude sensor 4 is installed on the rotating platform 3; the controller 5 is connected to the leveling lifting support arm group 2, and is used to control the extension and retraction of the high-precision leveling lifting support arm group according to the data of the turntable attitude sensor; a long-focal-length monitoring camera is provided on the rotating platform 3.

[0035] Traditional monitoring equipment cannot automatically adapt to the inclination of the tower, resulting in unstable images captured by the camera or even missing the target. The automatic adjustment platform of a long-focal-length monitoring camera proposed in this embodiment can monitor the attitude changes of the rotating platform in real time by setting a leveling lifting support arm group on the base of the monitoring tower and combining it with the turntable attitude sensor, and automatically adjust the extension and retraction of the support arm so that the camera always maintains a horizontal or predetermined attitude, thereby ensuring that the monitoring equipment can always accurately aim at the target. This adjustment process is automatic and does not require manual intervention, reducing human errors and maintenance work.

[0036] In actual work, due to the influence of factors such as wind, loose tower structure, and frost heave of the foundation, the dynamic changes in the inclination of the tower body are generated. Traditional equipment cannot capture the changes in real time and make timely adjustments, resulting in a decrease in the tracking accuracy and reliability of the monitoring system. The automatic adjustment platform proposed in this embodiment can obtain the attitude data of the platform in real time through the cooperation of the turntable attitude sensor and the controller, and control the leveling and lifting support arm group to make fine adjustments based on these data to ensure the stability and accuracy of the camera. This enables the system to work continuously and stably in a dynamic environment, avoiding monitoring blind spots or image distortion caused by the inclination of the tower body.

[0037] Long-focus surveillance cameras have a narrow field of view and require high precision positioning and tracking. The tilt of the tower may cause the lens to be unable to accurately aim at the target, affecting the target tracking effect. This embodiment introduces an automatic adjustment platform to adjust the shooting angle and direction of the long-focus camera in real time, ensuring that even if the tower is tilted, the camera can still accurately aim at the target for positioning and tracking. Especially when the monitoring range is large and the accuracy requirements are high, the automatic adjustment platform can effectively solve the tilt error problem in the traditional monitoring system, thereby improving the efficiency and accuracy of the long-focus surveillance camera.

[0038] In traditional monitoring systems, after the camera is fixed, it is easily affected by changes in the tower structure (such as temperature changes, wind force, etc.), resulting in system instability or even failure. In this embodiment, the platform is dynamically adjusted to reduce the impact of the tower structure on the monitoring equipment, thereby improving the stability and adaptability of the equipment. The fine-tuning function of the leveling lifting support arm group can automatically correct the posture of the equipment under various environmental conditions, extend the service life of the equipment, and reduce maintenance costs.

[0039] Embodiment 2. This embodiment is a further limitation of the automatic leveling platform for a long focal length surveillance camera described in embodiment 1. The leveling lifting support arm group 2 is composed of six sets of independently controlled worm gear lifting arms directly driven by high-torque DC brushless motors; they are distributed in a six-equally divided circular form on the automatic leveling mechanism base 1.

[0040] In this embodiment, the six independent lifting arms are evenly distributed on the base, ensuring that the entire adjustment platform can evenly act on all corners of the platform during the adjustment process. This uniform distribution improves the accuracy of platform leveling and avoids the problem of uneven platform or inaccurate adjustment caused by excessive adjustment of local lifting arms. The brushless DC motor has high efficiency and long service life. At the same time, since there are no carbon brushes, there is less friction and wear, which can provide more stable operating performance and reduce mechanical losses. Under high torque requirements, this motor can more effectively drive the worm gear lifting arm to ensure stable adjustment of the platform.

[0041] Furthermore, each lifting arm is controlled by an independent motor and can be adjusted individually. This means that each part of the platform can be adjusted precisely according to actual needs, further improving the accuracy of platform leveling. If a part is tilted or uneven, the system can automatically or manually make targeted adjustments.

[0042] Furthermore, the independent control design not only enables the platform to automatically level itself in different environments, but also can cope with complex terrain and different usage scenarios. For example, when the ground on which the platform is located is irregular, the system can flexibly adjust the height of each lifting arm to keep the platform level.

[0043] Embodiment 3: This embodiment further limits the automatic adjustment platform of a long focal length surveillance camera described in Embodiment 2, and the leveling lifting support arm group 2 is made of high-strength aluminum alloy material.

[0044] The high-strength aluminum alloy material used in this embodiment has high strength and good tensile properties, and can effectively withstand the load and external interference of the long-focal-length surveillance camera and the automatic adjustment platform during operation. Even under the influence of environmental factors such as wind and vibration, the leveling lifting support arm group can maintain sufficient stability, thereby ensuring the image quality of the surveillance camera at different angles and heights.

[0045] Furthermore, aluminum alloy has a lighter weight than other metal materials (such as steel), which makes the weight of the leveling lifting support arm group lighter. The lightweight design not only helps to reduce the overall weight of the equipment, making it easier to install and maintain, but also helps to improve the flexibility and reaction speed of the lifting adjustment. In this way, the dynamic response ability of the platform will be stronger, and the leveling process will be faster and more accurate.

[0046] Furthermore, aluminum alloy materials usually have good corrosion resistance, especially after anodizing, which can effectively resist the erosion of moisture, salt spray and other corrosive substances in the external environment. This is particularly important for surveillance cameras installed in changing environments, especially at the seaside, in high humidity or other harsh environments, which can extend the service life of the equipment and reduce maintenance costs.

[0047] Embodiment 4. This embodiment is a further limitation of the automatic adjustment platform of a long focal length surveillance camera described in Embodiment 2. The worm gear lifting arm directly driven by the high-torque DC brushless motor is mainly composed of a DC brushless motor, a worm, a worm wheel, a lifting arm, a guide mechanism and a supporting structure. The DC brushless motor is used as a power source, and the precise movement of the lifting arm is achieved through worm gear transmission. The output shaft of the DC brushless motor is connected to the worm through a coupling or directly to achieve power transmission. The spiral surface of the worm and the tooth surface of the worm wheel are driven through a precise meshing relationship, and the worm wheel is fixed on the output shaft of the lifting arm. The lifting arm is connected to the linear guide through a slider to ensure the smooth movement of the lifting arm. Connection between the support structure and the frame: The motor seat and the worm gear bracket are firmly fixed to the frame by bolts to provide stable support.

[0048] Embodiment 4: This embodiment further limits the automatic platform adjustment of a long focal length surveillance camera described in Embodiment 1. The turntable attitude sensor 4 includes a gyroscope and an accelerometer for detecting the tilt state of the turntable.

[0049] Implementation method 5: See Figure 2 This embodiment describes a control method for an automatic adjustment platform of a long focal length surveillance camera, which is implemented based on the automatic adjustment platform of a long focal length surveillance camera described in Embodiment 1, and includes:

[0050] S1: The turntable attitude sensor 4 detects the tilt angle of the rotating platform 3 in real time, and sends the detected angle data to the controller 5 in real time;

[0051] S2: The controller 5 receives data from the turntable attitude sensor 4, and determines whether the turntable is tilted according to whether the horizontal inclination angle fed back by the turntable attitude sensor 4 exceeds a preset threshold range;

[0052] S3: If the rotating platform 3 is detected to be tilted, the controller 5 calculates the amount of adjustment required according to the current tilt angle, controls the leveling lifting support arm group 2 to perform the adjustment operation, and the leveling lifting support arm group 2 is adjusted according to the calculated adjustment amount until the turntable returns to a horizontal position.

[0053] In the method proposed in this embodiment, the turntable attitude sensor (S1) monitors the tilt angle of the rotating platform in real time and transmits the data to the controller in real time. The real-time detection function ensures that once the platform tilts, it can respond quickly and make corresponding adjustments. This is crucial for long-focal-length surveillance cameras that require high precision and high stability, especially when used in dynamic environments, and can effectively avoid distortion or deviation of the surveillance image caused by the tilt of the platform. After receiving the sensor data, the controller determines whether the rotating platform is tilted according to the set threshold (S2). This intelligent judgment can ensure that the platform will only be adjusted when it exceeds the preset tilt range, thereby avoiding unnecessary operations. In addition, the controller calculates the amount to be adjusted according to the current tilt angle (S3) to achieve precise adjustment. This precise control can ensure that the effect of platform adjustment is not only fast but also precise, so that the platform returns to a horizontal position and ensures the stability of the surveillance image. The method can significantly reduce manual intervention by adjusting the automated leveling and lifting support arm group (S3). Manual intervention usually results in errors and low efficiency. The automatic adjustment mechanism can achieve precise adjustment around the clock, greatly improving operational efficiency and reducing labor costs, which is an important advantage, especially in unattended environments. Long-focal-length surveillance cameras have high requirements for stability. Once the platform tilts, it may cause blurred surveillance images, target offset, or even failure. Through this automatic platform adjustment method, the platform tilt will be detected and automatically corrected in real time, ensuring that the surveillance equipment always remains stable. This not only increases the service life of the surveillance equipment, but also increases the reliability of the equipment in harsh environments, especially in strong winds, vibrations, or other environments that may cause the platform to tilt.

[0054] The method proposed in this embodiment makes the adjustment process of the platform very efficient by real-time detection and calculation of the adjustment amount. Compared with traditional manual adjustment or other mechanical adjustment methods, the automatic adjustment method has a faster response speed and a smoother adjustment process, avoiding the problem of over-adjustment or under-adjustment, so that the platform can return to a normal horizontal state in the shortest time, ensuring the continuous and stable operation of the camera.

[0055] Embodiment 6: This embodiment further limits the control method for automatically adjusting the platform of a long focal length surveillance camera described in Embodiment 5, and the step S3 includes:

[0056] When the attitude sensor 4 detects that the horizontal inclination angle is greater than 0.05°, the controller 5 calculates the adjustment step of each support arm through the PID algorithm;

[0057] The controller 5 then drives the motor to control the leveling lifting support arm group 2 to perform telescopic adjustment so that the rotating platform 3 returns to the horizontal level.

[0058] In step S3, the controller calculates the adjustment step of the support arm through the PID algorithm (proportional-integral-differential control algorithm). The PID algorithm is a classic and mature control method that can provide accurate feedback regulation. It can achieve high-precision dynamic control by continuously calculating the gap between the current error and the target value and making adjustments accordingly. The PID algorithm has strong adaptability and can be corrected according to the actual deviation of the system, making the adjustment process smoother and more accurate, avoiding over-adjustment or over-slow adjustment.

[0059] When the attitude sensor detects that the horizontal inclination angle is greater than 0.05°, the system will automatically start the adjustment mechanism without manual intervention. This automated adjustment method greatly improves the convenience of operation and reduces the need for manual monitoring and intervention. Automatic adjustment not only improves efficiency, but also quickly restores the horizontal state of the equipment when deviation occurs in the real-time monitoring rotating platform, ensuring that the monitoring equipment always maintains a stable viewing angle, thereby ensuring the clarity and continuity of the monitoring image. The motor drive system can quickly telescope and adjust the leveling lifting support arm group according to the instructions of the controller 5. When the tilt angle deviates from the set value, the controller can respond quickly to restore the horizontal state of the rotating platform to ensure that the camera can resume normal operation in the shortest time. This rapid response can reduce the monitoring blind area caused by equipment deflection and avoid loss or distortion of the monitoring image.

[0060] Furthermore, the attitude sensor accurately monitors the horizontal tilt of the platform. Once the deviation exceeds the set threshold (such as 0.05°), the controller immediately adjusts to avoid overreacting to the tilt angle. This threshold setting can effectively prevent overly frequent adjustments and ensure that adjustment operations only occur when necessary, thereby reducing unnecessary controller resource consumption.

[0061] Embodiment 7: This embodiment further limits the control method for automatically adjusting the platform of a long focal length surveillance camera described in Embodiment 5. Step S3 further includes:

[0062] After the adjustment operation is completed, the controller 5 continuously monitors the real-time data of the rotating platform attitude sensor;

[0063] If the sensor's horizontal inclination value stabilizes at ≤0.005° within 30 seconds, it means the platform has recovered to a sufficiently horizontal state, and the controller stops the automatic leveling action.

[0064] Embodiment 8. A computer device described in this embodiment includes a memory and a processor, wherein the memory stores a computer program. When the processor runs the computer program stored in the memory, the processor executes a control method for automatically adjusting the platform of a long-focal-length surveillance camera described in any one of embodiments 5 to 7.

[0065] Embodiment 9. A computer-readable storage medium described in this embodiment stores a computer program, and when the computer program is executed by a processor, the steps of a control method for automatically adjusting the platform of a long-focus surveillance camera as described in any one of embodiments 5 to 7 are executed.

[0066] In this embodiment, by monitoring the real-time data of the attitude sensor of the rotating platform, especially the change of the horizontal inclination value, it is possible to accurately determine whether the platform has returned to a sufficiently horizontal state. When the horizontal inclination value is maintained at ≤0.005°, it means that the platform is very close to the ideal horizontal state, thereby ensuring the high accuracy of the leveling process. This high-precision leveling is very important for long-focal-length surveillance cameras, because a slight deviation may cause the surveillance image to be unstable or blurred, affecting the surveillance effect.

[0067] This method achieves fully automatic leveling, and the controller automatically continues to monitor the platform's posture after the adjustment is completed without manual intervention. This automated control not only reduces the need for manual operation, but also adjusts the leveling strategy according to the real-time status of the platform, improving the controller's adaptive ability, especially suitable for long-term unattended environments.

[0068] Once the platform's inclination value stabilizes, the controller will immediately stop the automatic leveling action. By automatically stopping after detecting that the platform's horizontal state is stable within 30 seconds, unnecessary continuous adjustments can be avoided, reducing power consumption and frequent movements of mechanical parts, extending the service life of the system, and saving time and resources.

[0069] Since the judgment condition of automatic leveling is based on the horizontal inclination value, this method ensures that the platform will only stop adjusting when it is indeed restored to a stable level. This high-reliability leveling control can effectively prevent unstable adjustments caused by external interference or equipment failure.

[0070] Long-focal-length surveillance cameras require extremely high stability of the platform, because even a slight deviation may cause the image to be distorted, out of focus, or unable to capture the target object. This control method can ensure that the platform can achieve the required accuracy in a short time, so that the camera can capture clear and stable images and videos, improving the effect and accuracy of monitoring.

[0071] It will be appreciated by those skilled in the art that the embodiments of the present disclosure may be provided as methods, systems or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc., which contain computer-usable program code.

[0072] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, device systems, and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of the processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing device to work in a specific way, so that the instructions stored in the computer-readable memory produce a product including an instruction device, which implements the functions specified in the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0073] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit its protection scope. Although the present disclosure has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the present disclosure, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the disclosed claims to be approved.

Claims

1. An automatic adjustment platform for a long focal length surveillance camera, characterized in that: The automatic adjustment platform comprises: Monitoring tower, base (1), leveling lifting support arm assembly (2), rotating platform (3), turntable attitude sensor (4) and controller (5); The base (1) is fixed on the monitoring tower, the leveling and lifting support arm group (2) is arranged on the base (1), the leveling and lifting support arm group (2) is provided with a rotating platform (3), and the turntable attitude sensor (4) is installed on the rotating platform (3); the controller (5) is connected to the leveling and lifting support arm group (2) and is used to control the extension and retraction of the high-precision leveling and lifting support arm group according to data from the turntable attitude sensor; and a long-focal-length monitoring camera is provided on the rotating platform (3).

2. The automatic adjustment platform for a long focal length surveillance camera according to claim 1, characterized in that: The leveling lifting support arm group (2) is composed of six sets of independently controlled high-torque DC brushless motor-driven worm gear lifting arms; they are distributed in a six-equally divided circular form on the automatic leveling mechanism base (1).

3. The automatic adjustment platform for a long focal length surveillance camera according to claim 2, characterized in that: The leveling lifting support arm group (2) is made of high-strength aluminum alloy material.

4. The automatic adjustment platform for a long focal length surveillance camera according to claim 2, characterized in that: The worm gear lifting arm directly driven by the high-torque DC brushless motor comprises: a DC brushless motor, a worm, a worm wheel, a lifting arm, and a guide mechanism. The DC brushless motor serves as a power source and realizes the movement of the lifting arm through worm gear transmission; the output shaft of the DC brushless motor is connected to the worm; the spiral surface of the worm and the tooth surface of the worm wheel realize transmission through a meshing relationship, and the worm wheel is fixed on the output shaft of the lifting arm.

5. The automatic adjustment platform for a long focal length surveillance camera according to claim 1, characterized in that: The turntable attitude sensor (4) comprises a gyroscope and an accelerometer, and is used to detect the tilt state of the turntable.

6. A control method for automatically adjusting the platform of a long focal length surveillance camera, characterized in that: The method is implemented based on the automatic adjustment platform of a long focal length surveillance camera according to claim 1, and the method comprises: S1: The turntable attitude sensor (4) detects the tilt angle of the rotating platform (3) in real time, and sends the detected angle data to the controller (5) in real time; S2: The controller (5) receives data from the turntable attitude sensor (4), and determines whether the turntable is tilted according to whether the horizontal inclination angle fed back by the turntable attitude sensor (4) exceeds a preset threshold range; S3: If it is detected that the rotating platform (3) is tilted, the controller (5) calculates the amount of adjustment required based on the current tilt angle, controls the leveling lifting support arm group (2) to perform an adjustment operation, and the leveling lifting support arm group (2) is adjusted according to the calculated adjustment amount until the turntable returns to a horizontal position.

7. The control method for automatically adjusting the platform of a long focal length surveillance camera according to claim 1, characterized in that: The step S3 comprises: When the attitude sensor (4) detects that the horizontal inclination angle is greater than 0.05°, the controller (5) calculates the adjustment step of each support arm through a PID algorithm; The controller (5) then drives the motor to control the leveling lifting support arm group (2) to perform telescopic adjustment so that the rotating platform (3) can be restored to a horizontal position.

8. The control method for automatically adjusting the platform of a long focal length surveillance camera according to claim 1, characterized in that: The step S3 further comprises: After the adjustment operation is completed, the controller (5) continuously monitors the real-time data of the rotating platform attitude sensor; If the sensor's horizontal inclination value stabilizes at ≤0.005° within 30 seconds, it means the platform has recovered to a sufficiently horizontal state, and the controller stops the automatic leveling action.

9. A computer device, characterized in that: It comprises a memory and a processor, wherein the memory stores a computer program, and when the processor runs the computer program stored in the memory, the processor executes a control method for automatically adjusting a platform of a long focal length surveillance camera according to any one of claims 5-7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, which, when executed by a processor, executes the steps of a control method for automatically adjusting a platform of a long-focus surveillance camera as claimed in any one of claims 5 to 7.

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