Full-scene live broadcast camera autonomous regulation and control system based on PLC technology

Abstract

The utility model relates to a full-scene live broadcast camera autonomous regulation and control system based on a PLC technology. The system comprises a sensor module, a control module, an emergency braking module and a camera adjustment module. The sensor module is connected with the live broadcast camera and is used for acquiring video feature information of the live broadcast camera and motion parameters of the camera in a live broadcast process and generating an adjusting signal; the control module is connected with the sensor module and is used for generating a control instruction according to the adjusting signal; the camera adjusting module is connected with the control module; the emergency braking module is respectively connected with the camera adjusting module and the control module; the system has an emergency braking function, when it is detected that equipment regulation and control are abnormal, live broadcast and movement of the camera can be automatically ended, the situation that live broadcast pictures are out of control due to equipment faults is avoided, automation, accuracy and high efficiency of live broadcast regulation and control are achieved, and more diversified and immersive watching experience is brought to consumers.

Description

TECHNICAL FIELD

[0001] The utility model relates to live broadcast equipment technical field especially is involved in a kind of full-scene live broadcast camera autonomous control system based on PLC technology. BACKGROUND

[0002] With the rapid development of live broadcast e-commerce industry, the demand for live broadcast technology is becoming higher and higher. As a new e-commerce sales model, live broadcast goods delivery has become an important means for merchants to promote products and attract consumers. However, in traditional live broadcast equipment, the shooting camera is usually fixed in position and requires manual adjustment of live broadcast picture clarity. This method cannot achieve accurate and stable dynamic picture adjustment and cannot meet the needs of consumers for more diversified and immersive viewing experience. In particular, in the live broadcast scene, the mobility of the host makes the adjustment of shooting angle, focal length and field of view a normal state, which requires the camera to be flexible and accurate in adjustment to cope with the dynamic changes in the live broadcast scene. However, the current live broadcast camera usually relies on manual adjustment of camera angle, focal length and other parameters. This control method not only easily causes operation delay, but also has high labor cost. In addition, the picture clarity and orientation adjustment smoothness of the live broadcast process directly affect the viewing experience of the audience. Therefore, in the live broadcast scene, the accuracy, stability and response speed of live broadcast equipment control are crucial. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a full-scene live broadcast camera autonomous control system based on PLC technology, which realizes the automation, accuracy and efficiency of live broadcast control and brings consumers a more diversified and immersive viewing experience.

[0004] The technical solution adopted by the utility model is a full-scene live broadcast camera autonomous control system based on PLC technology, which comprises a sensor module, a control module, an emergency braking module and a camera adjustment module. The sensor module is connected to the live broadcast camera and is used to collect video feature information of the live broadcast camera and motion parameters during the camera live broadcast process and generate an adjustment signal. The control module is connected to the sensor module and is used to generate a control instruction according to the adjustment signal. The camera adjustment module is connected to the control module and is used to adjust the video feature parameters and motion state parameters of the live broadcast camera according to the control instruction, feed back the adjusted video feature parameters and motion state parameters to the control module, and judge whether the adjustment of the live broadcast camera is within the normal range by the control module.

[0005] The emergency braking module is connected to the camera adjustment module and the control module, respectively, and is used to terminate the picture display of the live broadcast camera and the motion of the live broadcast camera when the control module judges that the adjustment of the live broadcast camera is not within the normal range.

[0006] The beneficial effects of this utility model are: by adopting the above-mentioned PLC-based full-scene live streaming camera autonomous control system,

[0007] Based on the clarity characteristics of the live broadcast image and the features of the people, the system can dynamically adjust the focus and shooting angle of the live broadcast camera using PLC technology to ensure the clarity and stability of the dynamic live broadcast image. In addition, the system also has an emergency braking function. When abnormal equipment control is detected, it can automatically stop the live broadcast and the camera movement to avoid the loss of control of the live broadcast image due to equipment failure. It realizes the automation, precision and efficiency of live broadcast control, and brings consumers a more diversified and immersive viewing experience.

[0008] Preferably, the camera adjustment module includes a visual adjustment unit, which is located inside the live streaming camera and is used to adjust the video characteristic parameters of the live streaming camera according to the control commands. This structure allows for real-time adjustment of the live streaming camera's display, ensuring a good user experience.

[0009] Preferably, the camera adjustment module further includes a motion adjustment device, which includes a first stepper motor, a lead screw rotatably connected to the first stepper motor, a slider mounted on the lead screw, a second stepper motor fixedly mounted on the slider, a first rotating rod rotatably connected at one end to the second stepper motor, a third stepper motor rotatably connected at the other end of the first rotating rod, a second rotating rod rotatably connected at one end to the third stepper motor, a fourth stepper motor fixedly connected at the other end of the second rotating rod, and a camera mounting base rotatably connected to the fourth stepper motor. The first, second, third, and fourth stepper motors are all connected to the control module. With this structure, the live-streaming camera is fixed to the camera mounting base. The first stepper motor drives the lead screw to rotate, which in turn drives the slider to move up and down, thereby moving the live-streaming camera on the camera mounting base up and down to adjust its position. The rotation of the second, third, and fourth stepper motors is used to adjust the live-streaming angle of the live-streaming camera. The first, second, third, and fourth stepper motors adjust the motion parameters of the live-streaming camera according to control commands.

[0010] Preferably, the sensor module includes an image recognition submodule, which is located inside the live streaming camera. The image recognition submodule acquires video feature information from the live streaming camera through machine vision and generates adjustment signals that are transmitted to the control module. With this structure, the video feature information from the live streaming camera can be acquired through machine vision and transmitted to the control module, allowing real-time access to the camera's display.

[0011] As preferred, the sensor module further comprises a motion detection submodule, the motion detection submodule comprises a linear displacement sensor installed on the surface of the sliding block and a Hall angle sensor, the Hall angle sensor is installed on the first rotating rod, the second rotating rod and the camera fixing seat respectively, and the linear displacement sensor and the Hall angle sensor are connected with the control module; the up-down displacement value of the live camera collected by the linear displacement sensor is transmitted to the control module, and the rotation angle of the live camera collected by the Hall angle sensor is transmitted to the control module, so that the control module can obtain the motion parameters in the live camera process in real time, and the control instruction can be generated by calculation according to the motion parameters, thereby more accurately controlling the motion of the live camera.

[0012] As preferred, the system further comprises a monitoring display module, the monitoring display module is connected with the camera adjusting module and the control module respectively, and is used for displaying the regulation and control state of the live camera and abnormal information in real time; as preferred, the system further comprises a serial communication module, the serial communication module is used for providing a data transmission channel for the sensor module, the control module and the monitoring display module, and reserving a standby interface. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 A system principle diagram of the full-scene live camera autonomous regulation and control system based on PLC technology;

[0014] Figure 2 A structural schematic view of the camera adjusting module in the full-scene live camera autonomous regulation and control system based on PLC technology;

[0015] As shown in the figure: 1, sensor module; 1.1, image recognition submodule; 1.2, motion detection submodule; 2, control module; 2.1, PLC submodule; 2.2, display screen submodule; 2.3, data storage submodule; 2.4, power supply submodule; 3, emergency brake module; 4, camera adjusting module; 4.1, first stepping motor; 4.2, lead screw; 4.3, sliding block; 4.4, second stepping motor; 4.5, first rotating rod; 4.6, third stepping motor; 4.7, second rotating rod; 4.8, fourth stepping motor; 4.9, camera fixing seat; 4.10, fixed plate; 5, monitoring display module; 6, serial communication. DETAILED DESCRIPTION

[0016] The utility model will be further described below with reference to the drawings and in combination with the specific embodiments, so that the person skilled in the art can implement according to the description, and the utility model protection scope is not limited to the specific embodiments.

[0017] Those skilled in the art should understand that in the disclosure of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above-mentioned terms cannot be understood as a limitation on the present application.

[0018] In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0019] In the description of the embodiments of the present application, it should be further pointed out that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected

[0020] , or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0021] The utility model relates to a kind of full-scene live camera autonomous regulation and control system based on PLC technology, as shown in figure, including: sensor module 1, control module 2, emergency brake module 3 and camera adjustment module 4;Each module cooperates with each other, works cooperatively, to realize the accurate positioning and stable regulation and control of live camera; Figure 1

[0022] Figure 1 Among them, the sensor module 1 is connected with live camera, for collecting the video feature information of live camera and the motion parameter in camera live process, and generating adjustment signal, to facilitate subsequent module based on this adjustment signal to adjust the definition parameter and angular orientation of live camera, save artificial cost;

[0023] The control module 2 is connected with sensor module 1, for generating control instruction according to the adjustment signal;

[0024] The camera adjustment module 4 is connected with control module 2, for adjusting the video feature parameter and motion state parameter of live camera according to the control instruction, and feedback adjusted video feature parameter and motion state parameter to control module 2, and whether the adjustment of live camera is located in normal range is judged by the control module 2;

[0025] ​The emergency braking module 3 is connected with the camera adjusting module 4 and the control module 2 respectively, and is used for terminating the display of the live camera and the movement of the live camera when the control module 2 judges that the adjustment of the live camera is not in the normal range.

[0026] In specific embodiments, the camera adjusting module 4 comprises a visual adjusting unit arranged in the live camera and used for adjusting video feature parameters of the live camera according to the control instruction given by the control module 2. With this structure, the display of the live camera can be adjusted in real time, and the good experience of the user can be ensured. The video feature parameters include image contrast, edge gradient, gray scale, focusing degree, exposure degree and the like.

[0027] In specific embodiments, as shown in Figure 2 The camera adjusting module 4 further comprises a movement adjusting device, which comprises a first stepping motor 4.1, a lead screw 4.2 rotationally connected with the first stepping motor 4.1, a sliding block 4.3 mounted on the lead screw 4.2, a second stepping motor 4.4 fixedly mounted on the sliding block 4.3, a first rotating rod 4.5 rotationally connected with one end of the second stepping motor 4.4, a third stepping motor 4.6 rotationally connected with the other end of the first rotating rod 4.5, a second rotating rod 4.7 rotationally connected with one end of the third stepping motor 4.6, a fourth stepping motor 4.8 fixedly connected with the other end of the second rotating rod 4.7, and a camera fixing seat 4.9 rotationally connected with the fourth stepping motor 4.8, wherein the first stepping motor 4.1, the second stepping motor 4.4, the third stepping motor 4.6 and the fourth stepping motor 4.8 are connected with the control module 2. Figure 2 In specific embodiments, the lead screw 4.2 is located above the first stepping motor 4.1, and the lead screw 4.2 rotates vertically, thereby driving the sliding block 4.3 mounted on the lead screw 4.2 to move up and down along the fixed plate 4.10 behind, thereby driving the live camera on the camera fixing seat 4.9 to move up and down to adjust the position of the live camera; the second stepping motor 4.4 drives the first rotating rod 4.5 to rotate, the third stepping motor 4.6 drives the second rotating rod 4.7 to rotate, and the fourth stepping motor 4.8 drives the camera fixing seat 4.9 to rotate, thereby completing the adjustment of the angle of the live camera, i.e. the first stepping motor 4.1, the second stepping motor 4.4, the third stepping motor 4.6 and the fourth stepping motor 4.8 adjust the movement state parameters of the live camera according to the control instruction given by the control module 2.

[0028] The camera adjusting module 4 is controlled by the control module 2 to automatically adjust the focusing degree, exposure degree and other definition parameters of the camera and the camera position, angle and other motion states, so as to adapt to the dynamically changing live broadcast scene and ensure that the camera shooting picture is clear and the camera field of view does not leave the character. The dynamic adjustment function can realize accurate positioning and stable regulation and control of the live broadcast camera, and ensure the clarity and stability of the shooting picture.

[0029] In specific embodiments, the sensor module 1 includes an image recognition sub-module 1.1 arranged inside the live broadcast camera. The image recognition sub-module 1.1 collects video feature information of the live broadcast camera through machine vision and transmits the video feature information of the live broadcast camera to the control module 2. The control module 2 generates a control instruction according to the video feature information collected in real time, calculates the optimal value of the video feature information that the live broadcast camera needs to reach, and generates a control instruction to the camera adjusting module 4. The visual adjustment unit in the camera adjusting module 4 adjusts the video feature information.

[0030] In specific embodiments, the sensor module 1 further includes a motion detection sub-module 1.2, which includes a linear displacement sensor installed on the surface of the sliding block 4.3 and a Hall angle sensor. The Hall angle sensor is installed on the first rotating rod 4.5, the second rotating rod 4.7 and the camera fixing seat 4.9, respectively. The linear displacement sensor and the Hall angle sensor are connected with the control module 2. When the sliding block 4.3 moves up and down with the live broadcast camera, the linear displacement sensor collects the displacement length of the live broadcast camera in real time and transmits the value to the control module 2. When the live broadcast camera rotates, the Hall angle sensor installed on the first rotating rod 4.5, the second rotating rod 4.7 and the camera fixing seat 4.9 collects the rotation angle of the live broadcast camera and transmits the angle value to the control module 2, so that the control module 2 obtains the motion parameters in the live broadcast process of the camera in real time and calculates the control instruction according to the motion parameters. The control module 2 calculates the optimal motion state that the live broadcast camera needs to reach according to the motion state parameters collected in real time, generates a control instruction to the camera adjusting module 4, and the motion adjusting device in the camera adjusting module 4 adjusts, so as to more accurately control the motion of the live broadcast camera.

[0031] The cooperation of the sensor module 1 and the control module 2 enables the system to dynamically adjust the camera settings according to real-time scene changes, thereby maintaining the stability and clarity of the live picture. In particular, when the live picture clarity in a dynamic scene changes or the position of a person changes, the sensor module 1 can capture these characteristic signals and transmit the signals to the control module 2, and the control module 2 controls the camera adjustment module 4 to adjust the focusing degree, exposure parameter and camera motion state of the live camera based on the signals collected by the sensor module 1.

[0032] In specific embodiments, the system further comprises a monitoring display module 5 connected with the camera adjustment module 4 and the control module 2, respectively, for displaying the adjustment state of the live camera and abnormal information in real time.

[0033] In specific embodiments, the system further comprises a serial communication module 6 for providing a data transmission channel for the sensor module 1, the control module 2 and the monitoring display module 5, and reserving a standby interface.

[0034] In specific embodiments, the control module 2 comprises a PLC sub-module 2.1, a display screen sub-module 2.2, a data storage sub-module 2.3 and a power supply sub-module 2.4, wherein the display screen sub-module 2.2 is used to display the camera focusing degree, exposure and camera motion parameters, etc., the data storage sub-module 2.3 is used to record the adjustment data of the camera, and the power supply sub-module 2.4 is used to provide 24V voltage for the whole system. The system integrates PLC control and parameter display functions, enhances the real-time performance and stability of camera adjustment, and facilitates long-term storage and post-analysis of data.

[0035] In specific embodiments, the emergency braking module 3 automatically ends the live broadcast and suspends the motor motion when the self-adjustment of the live picture is abnormal (the picture appears abnormal or the rotation exceeds the range), prevents the live picture from losing control, displays the abnormal reason on the monitoring display module 5, facilitates secondary review and maintenance by the staff, and quickly responds to the camera adjustment abnormality to prevent the live picture from losing control due to equipment failure. The introduction of the emergency braking module 3 improves the safety of the system.

[0036] The utility model relates to a kind of full-scene live camera self-adjustment control system based on PLC technology is installed in full-scene live environment, provides technical support for live personnel.This system can realize intelligent control of live camera according to real-time data processing, to guarantee the accurate positioning and stable control of live picture under full-scene.

[0037] In addition, the safety parameters of the camera self-adjustment control system of the utility model are as follows:

[0038] The continuous working operation length can reach 72 hours.

[0039] The camera's movement distance error does not exceed 1 cm;

[0040] Automatic control delay does not exceed 0.05 seconds;

[0041] Data communication verification is used to ensure the correctness of data transmission, and the communication time is less than 80 milliseconds;

[0042] The equipment operates in a temperature range of -10℃ to 50℃.

Claims

1. A full-scene live streaming camera autonomous control system based on PLC technology, characterized in that: include: Sensor module, control module, emergency braking module, and camera adjustment module; The sensor module is connected to the live streaming camera and is used to collect video feature information and motion parameters of the camera during live streaming, and generate adjustment signals; the control module is connected to the sensor module and is used to generate control commands based on the adjustment signals; the camera adjustment module is connected to the control module and is used to adjust the video feature parameters and motion state parameters of the live streaming camera according to the control commands, and feed back the adjusted video feature parameters and motion state parameters to the control module, which then determines whether the adjustment of the live streaming camera is within the normal range. The emergency braking module is connected to both the camera adjustment module and the control module. It is used to terminate the display of the live camera's image and the movement of the live camera when the control module determines that the adjustment of the live camera is not within the normal range.

2. The autonomous control system for a full-scene live streaming camera based on PLC technology according to claim 1, characterized in that: The camera adjustment module includes a visual adjustment unit, which is located inside the live streaming camera and is used to adjust the video feature parameters of the live streaming camera according to the control commands.

3. The autonomous control system for a full-scene live streaming camera based on PLC technology according to claim 2, characterized in that: The camera adjustment module further includes a motion adjustment device, which includes a first stepper motor, a lead screw rotatably connected to the first stepper motor, a slider mounted on the lead screw, a second stepper motor fixedly mounted on the slider, a first rotating rod rotatably connected at one end to the second stepper motor, a third stepper motor rotatably connected at the other end of the first rotating rod, a second rotating rod rotatably connected at one end to the third stepper motor, a fourth stepper motor fixedly connected at the other end of the second rotating rod, and a camera mounting base rotatably connected to the fourth stepper motor. The first, second, third, and fourth stepper motors are all connected to the control module.

4. The autonomous control system for a full-scene live streaming camera based on PLC technology according to claim 3, characterized in that: The sensor module includes an image recognition submodule, which is located inside the live streaming camera. The image recognition submodule acquires video feature information from the live streaming camera through machine vision and generates adjustment signals that are transmitted to the control module.

5. The autonomous control system for a full-scene live streaming camera based on PLC technology according to claim 4, characterized in that: The sensor module further includes a motion detection submodule, which includes a linear displacement sensor and a Hall angle sensor mounted on the surface of the slider. The Hall angle sensor is respectively mounted on the first rotating rod, the second rotating rod, and the camera mount. Both the linear displacement sensor and the Hall angle sensor are connected to the control module.

6. The autonomous control system for a full-scene live streaming camera based on PLC technology according to claim 5, characterized in that: The system also includes a monitoring and display module, which is connected to both the camera adjustment module and the control module, and is used to display the adjustment status and abnormal information of the live camera in real time.

7. The autonomous control system for a full-scene live streaming camera based on PLC technology according to claim 6, characterized in that: The system also includes a serial communication module, which provides a data transmission channel for the sensor module, control module, and monitoring display module.

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