Video conference equipment and display control method

Abstract

The invention discloses video conference equipment and a display control method, and relates to the technical field of display, the video conference equipment comprises an equipment main body, a circuit mainboard arranged in the equipment main body, a camera shooting assembly arranged in the middle of the equipment main body and a position sensor arranged on the circuit mainboard, and the circuit mainboard is provided with a video output module; the camera assembly is installed in the middle of the equipment body based on the rotating mechanism, and the rotating mechanism is electrically connected with the circuit mainboard. The circuit mainboard generates a rotation adjustment instruction based on detection data of the position sensor, and the rotation mechanism performs rotation adjustment on the camera assembly based on the rotation adjustment instruction; and / or the circuit mainboard generates a video adjustment instruction based on detection data of the position sensor, and the video output module adjusts a video output state based on the video adjustment instruction. Through a mode of combining physical rotation adjustment and software rotation adjustment, it is ensured that the proportion of a shot picture is matched with the proportion of a display screen, the risk of deformation or missing of a display picture is reduced, and the reliability of display output is improved.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically to a video conferencing device and a display control method. Background Technology

[0002] Current video conferencing systems use a display screen paired with external video conferencing equipment to achieve real-time video conferencing operations. Depending on the actual equipment layout or wiring requirements, the video conferencing equipment needs to be installed at the top, side, or bottom of the display screen. Depending on the installation location, the image capture and display of the video conferencing equipment will differ. Existing display adjustments mainly rely on software to rotate the image to adapt to the display screen's display requirements. However, this single adjustment method cannot fully meet the coordination between the image capture ratio of the video conferencing equipment and the image display ratio of the display screen. This can easily lead to inconsistencies between the image capture ratio of the video conferencing equipment and the playback ratio of the display screen, affecting the display effect of the video conferencing equipment. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a video conferencing device and a display control method. By using a position sensor to detect the device's posture in real time and generate adjustment commands, the rotating mechanism is driven to automatically adjust the camera angle and video output status. By combining physical rotation and software rotation adjustment, the invention effectively avoids the inconsistency between the image acquisition ratio of the video conferencing device and the playback ratio of the display screen, thereby improving the display effect.

[0004] This invention provides a video conferencing device, which includes: a device body, a circuit board disposed within the device body, a camera assembly disposed in the middle of the device body, and a position sensor disposed on the circuit board. The circuit board is provided with a video output module. The camera assembly is mounted in the middle of the device body based on a rotating mechanism, and the rotating mechanism is electrically connected to the circuit board. The circuit board generates a rotation adjustment command based on the detection data from the position sensor, and the rotation mechanism adjusts the camera assembly based on the rotation adjustment command; and / or The circuit board generates video adjustment commands based on the detection data from the position sensor, and the video output module adjusts the video output state based on the video adjustment commands.

[0005] Furthermore, the rotating mechanism includes: a first rotating drive motor, a gear bushing, and a rotating base; the camera assembly includes a mounting housing and a camera located inside the mounting housing; the rotating base is rotatably fitted onto the mounting housing. The camera is fixed on the rotating base, and the output shaft of the first rotation drive motor is connected to the gear bushing, which meshes with the circular rack of the rotating base.

[0006] Furthermore, the mounting housing is provided with a limit rod, and the rotating base is provided with a first limit end point and a second limit end point; The first limiting end point abuts against one side of the limiting rod, or the second limiting end point abuts against the other side of the limiting rod.

[0007] Furthermore, the camera assembly also includes a sub-control board, which is disposed on one side of the mounting housing; The sub-control board is equipped with two proximity sensors, and the limit rod is positioned between the two proximity sensors.

[0008] Furthermore, the camera assembly also includes a housing assembly, which includes a rotation drive mechanism, a first housing, and a second housing; The rotary drive mechanism drives the first cover and the second cover, which together form an outer cover structure that covers the camera.

[0009] Furthermore, the rotary drive mechanism includes: a second rotary drive motor, a first gear drive plate disposed on the first cover, a second gear drive plate disposed on the second cover, and a linkage component disposed between the first gear drive plate and the second gear drive plate; The second rotary drive motor meshes with the outer gear of the first gear drive plate based on the gear sleeve. The first gear drive plate and the second gear drive plate are connected based on the linkage. The first cover and the second cover are in a closed state based on the rotary drive mechanism, or the first cover and the second cover are in an open state based on the rotary drive mechanism.

[0010] The present invention also provides a display control method for a video conferencing device, the display control method being applicable to the video conferencing device, the display control method comprising: The position and pose of the camera component are obtained through a position sensor, and the installation position of the camera component is obtained based on the position and pose. The video output state is obtained based on the installation location, and the video output state is compared with the standard screen display state to obtain the adjustment angle. Based on the rotatable angle of the camera component and the video rotation angle of the video conferencing equipment, set several rotation angles for the video conferencing equipment; The adjustment angle is matched with several rotation angles. Based on the comparison results, the matched rotation angle is extracted from the several rotation angles, and an adjustment command is generated based on the rotation angle.

[0011] Furthermore, the step of obtaining the direct video output state based on the installation location, comparing the direct video output state with the standard video display state, and obtaining the adjustment angle includes: The top of the screen is taken as the origin of the display image, and the video output image at the origin is set as the standard video image display state. Align and overlap the geometric center of the direct output video with the geometric center of the standard video image, and rotate the standard video image counterclockwise until the standard video image and the direct output video image completely overlap. Record the rotation angle of the standard video frame from the origin position to the position of the direct output video frame, and mark the rotation angle as the adjustment angle.

[0012] Furthermore, setting several rotation angles for the video conferencing device based on the rotatable angle of the camera component and the video rotation angle of the video conferencing device includes: Based on the structural design of the camera component, the rotatable angle of the camera component in the clockwise direction is obtained, and the rotatable angle is set as the first rotation angle; Based on the placement of the camera component, the video rotation angle of the video conferencing device in a clockwise direction is obtained, and the video rotation angle is set as the second rotation angle; The third rotation angle is obtained by adding the rotatable angle and the video rotation angle together.

[0013] Furthermore, the step of performing a matching operation between the adjustment angle and several rotation angles, extracting the matched rotation angle from the several rotation angles based on the comparison results, and generating an adjustment command based on the rotation angle includes: The absolute value of the adjustment angle is matched with the absolute values ​​of several rotation angles in turn, and the rotation angle that is equal to the absolute value of the adjustment angle is selected. The output values ​​of the rotatable angle and the video rotation angle are obtained based on the rotation angle, and an adjustment command is generated by combining the output values ​​of the rotatable angle and the video rotation angle.

[0014] This invention provides a video conferencing device and a display control method. The device's position and orientation are detected in real time by a position sensor, and adjustment commands are generated to drive a rotating mechanism to automatically adjust the camera angle and video output status. By combining physical rotation adjustment and software rotation adjustment, the aspect ratio of the captured image is ensured to match the aspect ratio of the display screen, reducing the risk of image distortion or loss and improving the reliability of the display output. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the video conferencing device in an embodiment of the present invention; Figure 2 This is an exploded view of the structure of the video conferencing device in an embodiment of the present invention; Figure 3 This is a schematic diagram of the camera head assembly of the video conferencing device in an embodiment of the present invention; Figure 4 This is a schematic diagram of the closed state of the housing assembly of the video conferencing device in an embodiment of the present invention; Figure 5 This is a schematic diagram of the closed state of the housing assembly of the video conferencing device in an embodiment of the present invention; Figure 6 This is an exploded view of the housing component structure of the video conferencing device in an embodiment of the present invention; Figure 7 This is a flowchart of the control method for a video conferencing device in an embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Figure 1 A schematic diagram of the structure of a video conferencing device according to an embodiment of the present invention is shown. Figure 2An exploded view of the structure of a video conferencing device according to an embodiment of the present invention is shown. The video conferencing device includes: a device body 1, a circuit board 2 disposed within the device body 1, a camera component 3 disposed in the middle of the device body 1, and a position sensor 4 disposed on the circuit board 2. The circuit board 2 is provided with a video output module and the main control circuit of the video conferencing device is provided to realize the data input, data processing and other operation control of the video conferencing device to meet the usage requirements of the video conferencing device.

[0019] Specifically, the camera component 3 is mounted in the middle of the main body 1 based on a rotating mechanism. The rotating mechanism is electrically connected to the circuit board 2, so that the circuit board 2 can adjust the position and posture of the camera component 3 according to actual adjustment needs, so as to ensure that the shooting ratio of the camera component 3 is compatible with the display ratio of the display screen.

[0020] Furthermore, the main body of the device 1 is provided with a device base 11, which is used to support the circuit board 2. That is, the device base 11 provides an installation position for the circuit board 2 to meet the installation layout requirements of the internal wiring structure and electronic components of the main body of the device 1.

[0021] Furthermore, the video conferencing equipment also includes a mounting base 5, which is configured as a mounting connection component for the video conferencing equipment. It is used to install and fix the video conferencing equipment on the display screen or the wall of the conference room. The mounting base 5 is provided with cable management space, which can meet the external cable routing requirements of the video conferencing equipment and improve the aesthetics of the cable connection settings of the video conferencing equipment.

[0022] Specifically, the mainboard 2 generates a rotation adjustment command based on the detection data from the position sensor 4, and the rotation mechanism adjusts the camera component 3 based on the rotation adjustment command; and / or the mainboard 2 generates a video adjustment command based on the detection data from the position sensor 4, and the video output module adjusts the video output state based on the video adjustment command. The main control chip in the mainboard 2 obtains the position state of the video conferencing device through the position sensor 4, so as to adjust the video output effect of the video conferencing device according to the position state of the video conferencing device. The position sensor 4 is used to detect the physical pose state of the device, and can be implemented by an accelerometer or a gyroscope. In this embodiment, the position sensor 4 is a three-axis accelerometer of model MC3416-P. The position sensor 4 has a built-in mass block and several electrode plates, and the mass block and any of the electrode plates are connected by a cantilever beam. When the position of the position sensor 4 changes, the gap between the mass block and the electrode plate changes, thereby changing the capacitance data corresponding to the electrode plate, so that the position of the position sensor 4 can be identified and the pose state of the video conferencing device can be obtained.

[0023] Furthermore, in this embodiment, the detection signal of the position sensor 4 is (X, Y, Z). According to the adjustment of the installation position of the video conferencing equipment on the display screen or the wall of the conference room, the position sensor 4 outputs the coordinate information of the corresponding position, thereby accurately identifying the installation position of the video conferencing equipment.

[0024] Furthermore, when the detection signal output of the position sensor 4 is (1, 0, 0), it corresponds to the video conferencing device being installed at the top of the display screen; when the detection signal output of the position sensor 4 is (0, -1, 0), it corresponds to the video conferencing device being installed on the left side wall of the display screen; when the detection signal output of the position sensor 4 is (-1, 0, 0), it corresponds to the video conferencing device being installed at the bottom of the display screen; and when the detection signal output of the position sensor 4 is (0, 1, 0), it corresponds to the video conferencing device being installed on the right side wall of the display screen. By obtaining the installation position of the video conferencing device through the position sensor 4, the state information of the video image can be analyzed based on the installation position of the video conferencing device, so as to adjust the output image of the video conferencing device according to the display requirements of the display screen.

[0025] Specifically, Figure 3 A schematic diagram of the camera assembly 3 in an embodiment of the present invention is shown. The rotating mechanism includes a first rotary drive motor 34, a gear bushing 341, and a rotating base 33. The camera assembly 3 includes a mounting housing 31 and a camera 36 located inside the mounting housing 31. The rotating base 33 is rotatably fitted onto the mounting housing. The camera 36 is fixed on the rotating base 33. The output shaft of the first rotary drive motor 34 is driven to connect to the gear bushing 341. The gear bushing 341 meshes with the circular rack of the rotating base 33. The first rotary drive motor 34 drives the gear bushing 341 to rotate, thereby driving the rotating base 33 to rotate, realizing the rotation adjustment of the camera 36 to ensure that the image acquisition direction of the video conferencing equipment matches the image display direction of the display screen. The rotating base 33 refers to the load-bearing component that supports the camera 36 and enables its rotation. It can be made of metal alloy or engineering plastic and its purpose is to provide a stable mounting platform for the camera 36 and transmit motion. The mounting housing 31 refers to the frame structure that fixes and supports the rotating mechanism. It can be made of aluminum alloy or engineering plastic shell and its purpose is to constrain the movement trajectory of the rotating base 33 and prevent shaking during rotation.

[0026] Furthermore, in this embodiment, the display screen has a 16:9 aspect ratio. When the video conferencing device is installed at the top of the display screen, the image direction captured by the video conferencing device matches the display image direction of the display screen, thus satisfying the 16:9 aspect ratio. When the video conferencing device is installed on the side wall of the display screen, the image direction captured by the video conferencing device is perpendicular to the display image direction of the display screen. By adjusting the position of the camera component 3 of the video conferencing device through the rotation mechanism, the image direction captured by the video conferencing device can be kept consistent with the display image direction of the display screen, thereby ensuring the display effect of the display screen.

[0027] The first rotary drive motor 34 drives the gear sleeve 341 to rotate. Since the gear sleeve 341 meshes with the circular rack of the rotating base 33, the first rotary drive motor 34 can drive the rotating base 33 to rotate via the gear sleeve 341, thereby causing the camera 36 fixed on the rotating base 33 to rotate and adjust. The mechanical characteristics of the toothed meshing transmission ensure that the number of rotations of the rotating base 33 is precisely proportional to the output power of the first rotary drive motor 34, thus achieving precise control of the rotation angle. The mounting housing 31 serves as a fixed support structure, ensuring that the rotating base 33 remains stable during movement, avoiding wobbling or displacement, and guaranteeing the smoothness and accuracy of the adjustment process.

[0028] Furthermore, the first rotary drive motor 34 is an actuator that provides rotational power. In this embodiment, the first rotary drive motor 34 can be implemented as a stepper motor, a servo motor, or a brushless DC motor. It can provide a controllable power source for rotational adjustment by precisely controlling the motor speed and direction, thereby meeting the working requirements of the motor.

[0029] Furthermore, the video output module refers to the circuit unit that processes video signal output. It can use an image processing chip to rotate or scale the video. The video output module corrects the image orientation, primarily to adapt the output image to the display screen orientation. Specifically, the main board 2 generates rotation or video adjustment commands based on the detection data from the position sensor 4, achieving a combination of physical and software rotation adjustments. A rotation mechanism drives the camera assembly 3 to rotate, thereby processing the image acquisition from the video conferencing equipment and the display screen's display effect. Based on the physical rotation mechanism, the image acquisition direction of the camera assembly 3 is adjusted according to the installation position of the video conferencing equipment, ensuring that the image acquisition direction of the video conferencing equipment remains consistent with the display screen's image display direction during image acquisition. That is, the image acquired by the video conferencing equipment can directly adapt to the display screen's display image, avoiding inconsistent display ratios. The video output module of the main board 2 adjusts the orientation based on the acquired image from the video conferencing equipment, ensuring that the display screen's display meets the video conferencing requirements. By adjusting the camera component 3 of the video conferencing device through a physical rotation mechanism, the image acquisition of the video conferencing device can be adjusted, and the image direction of the display output of the video conferencing device can be adjusted in conjunction with the video output module, so as to ensure that the video conferencing device can meet the working requirements of real-time video conferencing.

[0030] Furthermore, after receiving the rotation adjustment command, the rotating mechanism rotates the camera component 3 to naturally match the shooting angle with the display screen direction. Simultaneously, the video output module pre-calibrates the video image according to the video adjustment command, ensuring the output image has a consistent aspect ratio and is free from cropping distortion. The position sensor 4 can be specifically implemented as a microelectromechanical system (MEMS) gyroscope, whose output signal is parsed by the control unit in the main board 2. This control unit can use a microcontroller based on an ARM Cortex-M4 core to efficiently process pose data and generate precise adjustment commands. Thus, through a closed-loop mechanism of hardware sensing and command generation, the device can automatically adapt to the display screen's display requirements in different placement positions, avoiding the image aspect ratio distortion problem caused by traditional software adaptive adjustment.

[0031] Specifically, after receiving the detection data from the position sensor 4, the mainboard 2 converts the pose state into specific adjustment parameters through an internal algorithm. The rotation mechanism, based on rotation adjustment commands, directly corrects the physical viewing angle by adjusting the rotation of the camera component 3, reducing the computational burden of post-processing video. The video output module, based on video adjustment commands, ensures that the output image is aligned with the display screen's orientation, guaranteeing the real-time video display effect. This solves the image adaptation problem caused by changes in the placement of video conferencing equipment, effectively avoiding the impact of inconsistent image proportions on the display effect, thereby improving the visual presentation quality and user experience of video conferencing.

[0032] For details, please refer to Figure 3 The rotating base 33 is provided with a first limiting end point 331 and a second limiting end point 332; the first limiting end point 331 abuts against one side of the limiting rod 311, or the second limiting end point 332 abuts against the other side of the limiting rod 311. The limiting rod 311 refers to a rigid blocking structure fixed to the mounting housing 31, which can be implemented by a metal rod or an engineering plastic column, thereby forming a physical boundary restriction on the rotation of the rotating base 33 to achieve precise angle adjustment.

[0033] Furthermore, the circular rack structure on the circumferential sidewall of the rotating base 33 is provided with a missing segment. One end of the missing segment is set as the first limiting endpoint 331, and the other end of the missing segment is set as the second limiting endpoint 332. The first limiting endpoint 331, the second limiting endpoint 332 and the limiting rod 311 cooperate to limit and adjust the rotation of the rotating base 33. The central angle corresponding to the arc of the missing segment is the physical rotation angle of the camera component 3 of the video conferencing equipment.

[0034] Specifically, the camera assembly 3 further includes a sub-control board 32, which is disposed on one side of the mounting housing 31. The sub-control board 32 is provided with two proximity sensors 321, and the limiting rod 311 is disposed between the two proximity sensors 321. The sub-control board 32 refers to a control circuit board used to process sensor signals. It can be implemented using a printed circuit board combined with a microcontroller, providing an electronic control basis for position detection to achieve precise adjustment of the position state of the camera assembly 3.

[0035] Furthermore, the two proximity sensors 321 can be non-contact position detection elements, using Hall effect sensors or photoelectric sensors to achieve a non-contact detection structure. They can monitor the approach state of the limit rod 311 in real time, so as to adjust the working state of the rotating base 33 in real time. When the rotating base 33 rotates, when the first limit end point 331 of the rotating base 33 approaches one of the proximity sensors 321, the proximity sensor is triggered, and the sensor detects the signal change and transmits it to the sub-control board 32. The sub-control board 32 generates a control command according to the signal to make the first rotation drive motor 34 decelerate or stop in advance, thereby avoiding a hard collision between the first limit end point 331 and the limit rod 311, achieving smooth limiting, and reducing the risk of damage to the camera assembly 3 due to rigid collision.

[0036] Furthermore, when the second limiting end point 332 of the rotating base 33 approaches another proximity sensor 321, the proximity sensor is triggered, and the sensor detects the signal change and transmits it to the sub-control board 32. The sub-control board 32 generates a control command based on the signal to cause the first rotation drive motor 34 to decelerate or stop in advance. By combining physical limiting and sensor adjustment, the accuracy and reliability of the rotation adjustment of the rotating base 33 are improved.

[0037] Furthermore, the sub-control board 32 can be a microcontroller based on the ARM Cortex-M series, the two proximity sensors 321 are Hall effect sensors, and the limit rod 311 and the mounting housing 31 are integrally formed. When the first limit end point 331 or the second limit end point 332 of the rotating base 33 moves into the detection range of the proximity sensor 321, the sensor output level signal changes. The sub-control board 32 adjusts the motor speed according to the signal change of the proximity sensor 321, thereby avoiding the mechanical impact problem when the rotating mechanism reaches the limit point, improving the accuracy of automatic adjustment of the camera component 3 and the stability of equipment operation.

[0038] Specifically, Figure 4 This diagram illustrates the structure of the housing assembly of the camera module according to an embodiment of the present invention. Figure 5 A schematic diagram of the closed state of the housing assembly of the video conferencing device in an embodiment of the present invention is shown; Figure 6An exploded view of the housing assembly structure of a video conferencing device according to an embodiment of the present invention is shown. The camera assembly 3 further includes a housing assembly 35, which includes a rotation drive mechanism, a first housing 352, and a second housing 353. The rotation drive mechanism drives and connects the first housing 352 and the second housing 353, which cooperate to form an outer housing structure covering the camera 36. The housing assembly 35 is an integrated protective structure. By using two arc-shaped cover plates, it can provide a physical isolation barrier for the camera 36, ​​thereby preventing the camera 36 from directly contacting the external environment. In the idle state of the video conferencing device, the housing assembly 35 can isolate and protect the camera 36, ​​reducing the risk of damage to the camera 36 during handling, installation, and daily idleness of the video conferencing device. It can also cover the camera 36, ​​unlike software-based camera shutdown, achieving physical coverage of the camera 36, ​​thus protecting user privacy and providing a better user experience.

[0039] Furthermore, when the camera assembly 3 is in working condition, the first cover 352 and the second cover 353 are rotated to form an open state, so that the camera 36 of the camera assembly 3 can meet the working requirements.

[0040] Furthermore, the rotational drive mechanism drives the first cover 352 and the second cover 353 to rotate, thereby achieving precise control over their opening and closing actions. By employing the first cover 352 and the second cover 353 to form two complementary semi-shell structures, the first cover 352 and the second cover 353 form a continuous sealed interface in the closed state, ensuring all-around coverage of the camera 36; simultaneously, the first cover 352 and the second cover 353 can form a sufficient opening area in the open state to meet the shooting operation requirements of the camera 36.

[0041] Specifically, a rotary drive mechanism receives control signals and outputs rotational torque to synchronously drive the first cover 352 and the second cover 353 to move relative to each other along a predetermined trajectory. This allows the two covers to fit tightly together in the closed state, forming a complete outer cover structure that completely isolates the camera 36 from the external environment. When the camera 36 needs to be activated, the rotary drive mechanism reverses its operation to open the covers, releasing the working area of ​​the camera 36. This design achieves automated control of the cover opening and closing action, avoiding the unreliability of manual operation, while ensuring the sealing reliability in the closed state and the functional integrity in the open state.

[0042] Specifically, the rotary drive mechanism includes: a second rotary drive motor 351, a first gear drive plate 3521 disposed on the first cover 352, a second gear drive plate 3531 disposed on the second cover 353, and a linkage 354 disposed between the first gear drive plate 3521 and the second gear drive plate 3531; the second rotary drive motor 351 can be a micro motor, which drives the first gear drive plate 3521 to rotate, and since the first gear drive plate 3521 and the second gear drive plate 3531 form a gear connection relationship based on the linkage 354, the second gear drive plate 3531 and the first gear drive plate 3521 can rotate synchronously.

[0043] The second rotary drive motor 351 meshes with the outer gear of the first gear drive plate 3521 based on a gear sleeve. The first gear drive plate 3521 and the second gear drive plate 3531 are connected based on a linkage 354. The first cover 352 and the second cover 353 are either in a closed state or in an open state based on the rotary drive mechanism. The linkage 354 is provided with two connecting toothed sleeves, which are respectively located in the two semicircular areas of the circular rack of the first gear drive plate 3521. Based on the linkage 354 forming a gear transmission structure between the first gear drive plate 3521 and the second gear drive plate 3531, the motion transmission between the first gear drive plate 3521 and the second gear drive plate 3531 can be realized, ensuring the consistency of movement between the first cover 352 and the second cover 353.

[0044] Furthermore, based on the gear transmission structure formed by the first gear drive plate 3521 and the second gear drive plate 3531, when the first gear drive plate 3521 rotates clockwise, the second gear drive plate 3531 can rotate counterclockwise under the drive of the first gear drive plate 3521. That is, the first gear drive plate 3521 and the second gear drive plate 3531 rotate synchronously in opposite directions, thereby enabling the first cover 352 and the second cover 353 to move towards each other to form a closed state, or to drive the first cover 352 and the second cover 353 to move away from each other to form an open state. The second rotary drive motor 351 drives the first gear drive plate 3521 to rotate via the gear sleeve, and at the same time, the linkage 354 synchronously transmits the motion to the second gear drive plate 3531, so that the first cover 352 and the second cover 353 open and close with a coordinated trajectory, thereby ensuring the motion synchronization and positioning accuracy of the cover assembly 35 during the switching process between the closed and open states.

[0045] Specifically, the rotary drive mechanism also includes a magnetic encoder disposed on the output shaft of the second rotary drive motor 351. The magnetic encoder detects the rotation angle of the second rotary drive motor 351 to control the segmented speed of the second rotary drive motor 351. When the second rotary drive motor 351 drives the first cover 352 and the second cover 353 to deflect towards each other for a closing operation, the magnetic encoder obtains the rotation angle of the first cover 352 and the second cover 353 to determine their relative positions. When the first cover 352 and the second cover 353 approach each other, the second rotary drive motor 351 adjusts its working output power so that the first cover 352 and the second cover 353 can reduce their deflection speed, thereby reducing the closing impact force of the first cover 352 and the second cover 353 and reducing the possibility of damage to the cover assembly 35.

[0046] Furthermore, when the first cover 352 and the second cover 353 are in the open state, and the video conferencing device switches from the working state to the standby or power-off state, the second rotary drive motor 351 can drive the first cover 352 and the second cover 353 to move towards each other, so that the first cover 352 and the second cover 353 can close to form a protective cover structure. The second rotary drive motor 351 can drive the first cover 352 and the second cover 353 to close at a first speed. The second rotary drive motor 351 adjusts its output power in real time based on the preset recognition signal of the magnetic encoder, so that the rotation speed of the first cover 352 and the second cover 353 is reduced, and the first cover 352 and the second cover 353 can close slowly, thereby reducing the impact force of the closing contact between the first cover 352 and the second cover 353 and reducing the risk of collision damage to the first cover 352 and the second cover 353.

[0047] Furthermore, by setting the magnetic encoder to achieve segmented control of the second rotary drive motor 351, the efficiency of the first cover 352 and the second cover 353 in performing the closing action can be improved, and the safety of the first cover 352 and the second cover 353 in performing the closing action can be ensured.

[0048] This invention provides a video conferencing device and a display control method. The device's position and orientation are detected in real time by a position sensor 4, which generates adjustment commands to drive a rotating mechanism to automatically adjust the camera's 36-degree angle and video output status. By combining physical rotation adjustment and software rotation adjustment, the aspect ratio of the captured image is ensured to match the aspect ratio of the display screen, reducing the risk of image distortion or loss and improving the reliability of the display output.

[0049] Example 2: Figure 7 A flowchart of a display control method for a video conferencing device according to an embodiment of the present invention is shown. The display control method is applicable to the aforementioned video conferencing device and includes: S11: Obtain the pose state of the camera component through the position sensor, and obtain the installation position of the camera component based on the pose state.

[0050] Specifically, the installation position of the video conferencing equipment is obtained based on the detection signal from the position sensor, thereby determining the pose state of the camera assembly. The position sensor is a triaxial accelerometer (model MC3416-P) capable of detecting axial position along the XYZ axes. When the position of the position sensor changes, the change in distance between the internal mass block and the electrode plates is converted into capacitance data corresponding to the electrode plates, thus identifying the position of the position sensor and obtaining the pose state of the video conferencing equipment.

[0051] Furthermore, the position sensor outputs a detection signal of (X, Y, Z). Based on the adjustment of the video conferencing device's installation position on the display screen, the position sensor outputs the corresponding coordinate information, thereby accurately identifying the installation position of the video conferencing device. When the position sensor outputs a detection signal of (1, 0, 0), the video conferencing device is installed at the top of the display screen; when the position sensor outputs a detection signal of (0, -1, 0), the video conferencing device is installed on the left side wall of the display screen; when the position sensor outputs a detection signal of (-1, 0, 0), the video conferencing device is installed at the bottom of the display screen; and when the position sensor outputs a detection signal of (0, 1, 0), the video conferencing device is installed on the right side wall of the display screen. By obtaining the installation position of the video conferencing device through the position sensor, the state information of the video image can be analyzed based on the installation position of the video conferencing device, so as to adjust the output image of the video conferencing device according to the display screen's display requirements.

[0052] S12: Obtain the direct output video state based on the installation location, compare the direct output video state with the standard screen display state, and obtain the adjustment angle.

[0053] Specifically, the top of the display screen is taken as the origin of the display image, and the direct output video image at the origin is set as the standard video image display state. The standard video image display state is an image image that does not require rotation or adjustment and can be directly adapted to the display area of ​​the display screen.

[0054] Align and superimpose the geometric center of the direct output video frame with the geometric center of the standard video frame, and rotate the standard video frame clockwise until the standard video frame and the direct output video frame completely overlap. Detect the phase difference angle between the direct output video frame and the standard video frame using this geometric center alignment method, ensuring that the center points of the two images are aligned. This can be achieved using an image registration algorithm based on feature point detection or a coordinate transformation matrix for image translation. This method accurately obtains the phase difference angle between the direct output video frame and the standard video frame, ensuring that the rotation adjustment precisely eliminates the angular difference between the two.

[0055] In this embodiment, the camera component of the video conferencing device rotates clockwise. Setting clockwise rotation adjustment means rotating the standard video frame in a fixed direction until it completely matches the direct output video frame, so that the calculated phase difference angle can be adapted to the rotation adjustment direction of the video conferencing device.

[0056] Furthermore, the rotation transformation operation is performed by the image processing unit or by setting a preset rotation direction constraint to unify the rotation direction to ensure data consistency and adapt to the rotation adjustment requirements of the physical rotation mechanism of the video conferencing equipment, thus ensuring the uniqueness and traceability of the angle measurement results.

[0057] The rotation angle of the standard video frame from the origin position to the position of the direct output video frame is recorded, and this rotation angle is marked as the adjustment angle. The rotation angle is obtained by quantifying the amount of rotation of the standard video frame from the origin position to the overlapping position through image analysis processing. Based on the angle analysis, the camera component can be accurately rotated and adjusted according to the installation position of the video conferencing equipment to ensure that the captured image of the camera component is adapted to the display screen, and the video output module of the video conferencing equipment can accurately adjust the output display image of the video conferencing equipment.

[0058] Furthermore, by setting a standard image state with the top of the display screen as the unified origin, a stable reference benchmark was established, avoiding benchmark drift caused by arbitrary selection of reference points. Subsequently, the geometric centers of the two images were precisely aligned and superimposed, and the geometric stability of the image center point was used to achieve accurate alignment of the initial position, effectively isolating the interference of translation factors on angle calculation. On this basis, the standard image was forcibly rotated clockwise until it was completely overlapped, which standardized the rotation path and ensured the integrity of image matching, eliminating measurement errors caused by partial overlap or directional confusion. Finally, the rotation angle from the origin position to the overlap position was recorded and marked as the adjustment angle, forming a quantifiable angle data chain, providing a precise basis for the dynamic adjustment of the video output state, thus constructing a complete technical closed loop from image state acquisition to angle calculation.

[0059] S13: Based on the rotatable angle of the camera component and the video rotation angle of the video conferencing equipment, set several rotation angles for the video conferencing equipment.

[0060] The rotatable angle of the camera component is obtained through physical rotation driven by a rotating mechanism. Combined with the video rotation angle of the video conferencing device, the rotation angle of the output video image from the camera component can be obtained. Specifically, the angle adjustment performed by the rotating mechanism adjusts the shooting direction of the video conferencing device during the image acquisition phase, ensuring that the captured image adapts to the orientation of the display screen. The video rotation angle refers to the software-adjusted orientation of the output video image. By combining the physically adjustable rotatable angle with the software-adjusted video rotation angle, the range of rotation adjustment angles of the camera component can be widened, allowing the camera component to adapt to the video angle rotation adjustment needs of different installation positions.

[0061] Furthermore, by setting the rotating mechanism to physically rotate and adjust the camera component of the video conferencing equipment, the image captured by the camera component can be adapted to the display screen, and the ease of adjusting the angle of the camera component's image is improved.

[0062] Specifically, setting several rotation angles for the video conferencing device based on the rotatable angle of the camera component and the video rotation angle of the video conferencing device includes: Based on the structural design of the camera assembly, the rotatable angle of the camera assembly in the counterclockwise direction is obtained, and this rotatable angle is set as the first rotation angle. Based on the placement position of the camera assembly, the video rotation angle of the video conferencing device in the counterclockwise direction is obtained, and this video rotation angle is set as the second rotation angle. The rotatable angle and the video rotation angle are added together to obtain the third rotation angle. The rotatable angle refers to the maximum rotation range that the camera assembly can achieve based on its mechanical structure. It can be achieved by real-time detection using a position sensor or by querying a preset structural parameter table. The purpose is to ensure that the rotation command is strictly limited to the physical capabilities of the hardware to avoid invalid operations or equipment damage. The video rotation angle refers to the video direction adjustment requirements caused by differences in the device's installation position. It can be obtained based on a preset mapping table of the installation position or through input via the user interface. The purpose is to compensate for the influence of different placement environments on the video display direction and ensure that the image is adapted to the display screen.

[0063] Furthermore, the first rotation angle is set according to the rotation angle that the physical rotation mechanism of the video conferencing device can achieve. In this embodiment, the rotation angle of the rotation mechanism is set to 90°. The rotation mechanism can drive the camera component to rotate 90° clockwise. When the video conferencing device is installed on the left side wall of the display screen, before the rotation adjustment, the camera component is rotated 90° relative to the origin position based on the installation position. After the camera component is driven to rotate and adjust by the first rotation angle by the rotation mechanism, the pose state of the camera component is the same as the pose state of the origin, so that the video output image after the video conferencing device acquires the image after the rotation adjustment is consistent with the video output image at the origin position.

[0064] Furthermore, the second rotation angle is an adjustment angle obtained by the software rotation of the video output module of the video conferencing device. When the video conferencing device is installed at the bottom of the display screen, so that the pose of the camera component is mirror-symmetrical with the pose of the origin position, the image captured by the video conferencing device is mirror-flipped by adjusting the angle through the software of the video output module. That is, the video output image is flipped vertically and then output, which can achieve the display consistency with the video display image at the origin position.

[0065] Furthermore, the third rotation angle is obtained by combining the physical rotation angle and the video rotation angle, that is, combining the 90° rotation angle of the first rotation angle with the 180° rotation angle of the second rotation angle to form a 270° rotation adjustment angle. When the video conferencing equipment is installed on the right wall of the display screen, by adjusting the third rotation angle, that is, by driving the camera component to rotate 90° through the rotation mechanism, the shooting direction of the camera component is adjusted, and then the software adjusts to flip the captured image vertically, thereby achieving the display screen's display requirements.

[0066] Furthermore, the rotatable angle is obtained based on the structural design of the camera component and set as the first rotation angle. This defines the physical upper limit of rotation adjustment, ensuring that the command does not exceed the allowable range of the mechanical structure. Secondly, the video rotation angle is obtained based on the placement position of the camera component and set as the second rotation angle. This quantifies the video orientation deviation caused by the installation environment. For example, when placed on a side wall, additional rotation is required to correct the image orientation. Finally, the rotatable angle and the video rotation angle are added together to obtain the third rotation angle. This angle integrates hardware capabilities and environmental factors to form a complete rotation reference system, enabling precise selection of feasible solutions when matching and adjusting the angle in the subsequent process, thereby ensuring the reliability and accuracy of the video output state adjustment.

[0067] S14: Perform a matching operation between the adjustment angle and several rotation angles, extract the matched rotation angle from the several rotation angles based on the comparison results, and generate an adjustment command based on the rotation angle. Specifically, the step of performing a matching operation between the adjustment angle and several rotation angles, extracting the matched rotation angle from the several rotation angles based on the comparison results, and generating an adjustment command based on the rotation angle includes: The absolute value of the adjustment angle is sequentially matched with the absolute values ​​of several rotation angles to select the rotation angle that matches the absolute value of the adjustment angle. The output values ​​of the rotatable angle and the video rotation angle are obtained based on the rotation angle, and an adjustment command is generated by combining these output values. The absolute value of the adjustment angle refers to the magnitude of the angle ignoring its directionality. It can be implemented using a mathematical absolute value function to eliminate interference from clockwise or counterclockwise rotation directions on the matching process. The matching operation can be understood as a comparison operation of angle values. By sequentially comparing several rotation angles with the adjustment angle, and considering that the display screen has a rectangular structure, installing video conferencing equipment on the four sides of the rectangular structure results in a 90° angular deviation between adjacent installation positions. This makes angle adjustment convenient and simple at each installation position, improving the ease of rotation adjustment and enabling efficient identification of rotation angles that match the size. First, by performing absolute value calculations on the adjustment angle and rotation angle, directional factors are eliminated, allowing the matching process to focus solely on the angle magnitude. Then, the absolute value of the adjustment angle is compared one by one with the absolute value of the preset rotation angle to reliably select a rotation angle that matches the size. Based on this, the output values ​​of the rotatable angle and the video rotation angle are obtained according to the selected rotation angle, and adjustment commands are generated by combining these output values. This ensures that the commands can be accurately mapped to the physical rotation range of the rotating mechanism and the adjustment range of the video output, thereby driving the rotating mechanism and the video output module to work together to accurately adjust the video image.

[0068] Furthermore, the video output module refers to the circuit unit that processes video signal output. It can use an image processing chip to rotate or scale the video. The video output module corrects the screen orientation, mainly to make the output screen adapt to the display screen orientation.

[0069] Specifically, an adjustment method combining physical and software rotation is used. A rotating mechanism drives the camera component to rotate, thereby controlling image acquisition by the video conferencing equipment and processing the display screen's image. The physical rotation mechanism adjusts the camera component's image acquisition direction based on the video conferencing equipment's installation position, ensuring that the image acquisition direction matches the display screen's image direction during image acquisition. This means the video conferencing equipment's image can be directly adapted to the display screen's image, avoiding inconsistencies in display ratios. The video output module adjusts the orientation based on the acquired image from the video conferencing equipment, ensuring the display screen meets the video conferencing requirements. By adjusting the camera component through the physical rotation mechanism, the image acquisition at the video conferencing equipment's acquisition end can be adjusted. Combined with the video output module's adjustment of the image orientation at the display output end, this ensures the video conferencing equipment meets the operational requirements of real-time video conferencing.

[0070] Furthermore, after receiving the rotation adjustment command, the rotating mechanism adjusts the camera component to naturally match the shooting angle with the display screen direction. Simultaneously, the video output module pre-calibrates the video image according to the video adjustment command, ensuring the output image has a consistent aspect ratio and is free from cropping distortion. The position sensor can be specifically implemented as a microelectromechanical system (MEMS) gyroscope, whose output signal is parsed by the control unit in the main board. This control unit can use a microcontroller based on an ARM Cortex-M4 core to efficiently process pose data and generate precise adjustment commands. Thus, through a closed-loop mechanism of hardware sensing and command generation, the device can automatically adapt to the display screen's display requirements in different placement positions, avoiding the image aspect ratio distortion problem caused by traditional software adaptive adjustment.

[0071] Furthermore, the rotating mechanism directly corrects the physical viewing angle by adjusting the rotation of the camera component based on rotation adjustment commands, reducing the computational burden of post-processing video. The video output module, based on video adjustment commands, ensures that the output image is consistent with the display screen, ensuring the real-time video display effect of the display screen. This solves the image adaptation problem caused by changes in the placement of video conferencing equipment, effectively avoiding the impact of inconsistent image proportions on the display effect, thereby improving the visual presentation quality and user experience of video conferencing.

[0072] The working principle of the video conferencing equipment and display control method provided in this invention is as follows: By combining real-time monitoring of the camera component's pose state by a position sensor with dynamic derivation of adjustment angles based on the installation position, a combination of hardware perception and intelligent computing is used to accurately quantify video image deviation and match the optimal rotation angle. This achieves the effect of automatically correcting the image ratio and avoiding damage to the display effect under different device placement positions. Specifically, the position sensor directly acquires the physical pose state of the device, ensuring that the installation position determination is based on the actual orientation rather than a preset assumption, avoiding deviations caused by ignoring hardware pose in traditional software adaptive adjustment; the difference between the direct video output state and the standard display state is dynamically deduced based on the installation position, achieving accurate quantification of image deviation; the preset rotation angle options, combined with the rotatable angle of the camera component and the video rotation angle of the video conferencing equipment, ensure that the adjustment scheme conforms to physical constraints; and the optimal rotation angle is selected through matching calculations to generate adjustment commands, achieving coordinated optimization of hardware adjustment and software output, effectively solving the problem of image ratio distortion in scenarios such as side-wall installation. In practical applications, this solution, through a closed-loop mechanism of hardware-level pose perception and command generation, enables the video output image to automatically adapt to the display screen orientation, significantly improving the display effect and user experience of video conferencing.

[0073] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.

[0074] Furthermore, the video conferencing device and display control method provided by the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A video conferencing device, characterized by, The video conference device comprises a device body, a circuit mainboard arranged in the device body, a camera assembly arranged in the middle part of the device body, and a position sensor arranged on the circuit mainboard, wherein the circuit mainboard is provided with a video output module; The camera assembly is arranged in the middle part of the device body based on a rotating mechanism, and the rotating mechanism is electrically connected with the circuit mainboard; The circuit mainboard generates a rotating adjustment instruction based on the detection data of the position sensor, and the rotating mechanism adjusts the rotation of the camera assembly based on the rotating adjustment instruction; and / or The circuit mainboard generates a video adjustment instruction based on the detection data of the position sensor, and the video output module adjusts the video output state based on the video adjustment instruction.

2. The video conferencing device of claim 1, wherein, The rotating mechanism comprises a first rotating drive motor, a gear shaft sleeve, and a rotating base, the camera assembly comprises a mounting shell and a camera arranged in the mounting shell, and the rotating base is rotationally fitted on the mounting shell; The camera is fixed on the rotating base, the output shaft of the first rotating drive motor is drivingly connected with the gear shaft sleeve, and the gear shaft sleeve is engaged with the circular rack of the rotating base.

3. The video conferencing device of claim 2, wherein, The mounting shell is provided with a limiting rod, and the rotating base is provided with a first limiting end point and a second limiting end point; The first limiting end point abuts against one side of the limiting rod, or the second limiting end point abuts against the other side of the limiting rod.

4. The video conferencing device of claim 3, wherein, The camera assembly further comprises a sub-control board, and the sub-control board is arranged on one side of the mounting shell; The sub-control board is provided with two proximity sensors, and the limiting rod is arranged between the two proximity sensors.

5. The video conferencing device of claim 1, wherein, The camera assembly further comprises a cover assembly, and the cover assembly comprises a rotating drive mechanism, a first cover, and a second cover; The rotating drive mechanism drivingly connects the first cover and the second cover, and the first cover and the second cover cooperatively form an outer cover structure covering the camera.

6. The video conferencing device of claim 5, wherein, The rotating drive mechanism comprises a second rotating drive motor, a first gear drive plate arranged on the first cover, a second gear drive plate arranged on the second cover, and a linkage arranged between the first gear drive plate and the second gear drive plate; The second rotating drive motor is engaged with the outer gear of the first gear drive plate based on a gear sleeve, the first gear drive plate and the second gear drive plate are connected based on the linkage, and the first cover and the second cover form a closed state based on the rotating drive mechanism, or the first cover and the second cover form an open state based on the rotating drive mechanism.

7. A display control method of a video conference apparatus, characterized by, The display control method is suitable for the video conference device as claimed in any one of claims 1 to 6, and the display control method comprises: acquiring the pose state of the camera assembly through the position sensor, and acquiring the mounting position of the camera assembly according to the pose state; comparing the video direct picture state with the standard picture display state according to the mounting position to acquire the adjustment angle; setting a plurality of rotating angles of the video conference device according to the rotatable angle of the camera assembly and the video rotating angle of the video conference device; and The adjustment angle is matched with the several rotation angles, and the matched rotation angle is extracted from the several rotation angles according to a comparison result, and an adjustment instruction is generated according to the rotation angle.

8. The display control method of a video conference apparatus according to claim 7, wherein The adjustment angle is matched with the several rotation angles, and the matched rotation angle is extracted from the several rotation angles according to a comparison result, and an adjustment instruction is generated according to the rotation angle. The top of the display screen is set as the origin position of the display picture, and the video straight-out picture state at the origin position is set as the standard video picture display state. The geometric center of the video straight-out picture is aligned with the geometric center of the standard video picture, and the standard video picture is adjusted by counterclockwise rotation until the standard video picture completely overlaps the video straight-out picture. The rotation angle of the standard video picture from the origin position to the position of the video straight-out picture is recorded, and the rotation angle is marked as the adjustment angle.

9. The display control method of a video conference apparatus according to claim 7, wherein The several rotation angles of the video conference equipment are set according to the rotatable angle of the camera assembly and the video rotation angle of the video conference equipment. The rotatable angle of the camera assembly in the clockwise direction is obtained according to the structural design of the camera assembly, and the rotatable angle is set as the first rotation angle. The video rotation angle of the video conference equipment in the clockwise direction is obtained according to the placement position of the camera assembly, and the video rotation angle is set as the second rotation angle. The third rotation angle is obtained by adding the rotatable angle and the video rotation angle.

10. The display control method of a video conference apparatus according to claim 7, wherein The adjustment angle is matched with the several rotation angles, and the matched rotation angle is extracted from the several rotation angles according to a comparison result, and an adjustment instruction is generated according to the rotation angle. The absolute value of the adjustment angle is matched with the absolute values of the several rotation angles in sequence, and the rotation angle equal to the absolute value of the adjustment angle is selected. The output values of the rotatable angle and the video rotation angle are obtained according to the rotation angle, and the adjustment instruction is generated in combination with the output values of the rotatable angle and the video rotation angle.

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