Control system and method of aerial screen

Abstract

The invention discloses an aerial screen control system and method. A control system of an aerial screen comprises a plurality of display units distributed in a matrix mode and an unmanned aerial vehicle used for supporting the display units. The display unit is located on the side edge or below the unmanned aerial vehicle. The unmanned aerial vehicle is provided with flight control circuits and further comprises a control circuit in communication connection with the flight control circuits. The display unit is provided with a boundary driving circuit in communication connection with the flight control circuit; when a boundary gap between adjacent display units is smaller than a set value, the boundary driving circuit outputs a control signal to the boundary driving mechanism, and the boundary position of the display unit is reduced, so that the boundary gap is recovered to be larger than or equal to the set value. According to the control system of the aerial screen, each unmanned aerial vehicle is provided with the boundary driving mechanism, when the boundary gap is smaller than the set value, the unmanned aerial vehicle can start to work, the outer contours of the display units are reduced in the forward rotation direction and the backward rotation direction, and therefore the safe distance between the two display units is guaranteed, and the reliability of the aerial screen working in the air is improved.

Description

Technical Field

[0001] This invention relates to an aerial display screen, and more specifically to a control system and method for an aerial display screen. Background Technology

[0002] In the air, drones are used as supports for display units, and several drones supporting display units form a large display screen. However, it is necessary to ensure that sufficient gaps are left between the displays to prevent collisions that could cause the drones to lose control. Therefore, the following aspects need to be considered:

[0003] Uniform spacing: Ensure a uniform gap between displays to prevent irregular gap distribution. This will help maintain the overall appearance consistency of the display.

[0004] Alignment issues: Maintaining display alignment can be more complex, as it requires consideration of both horizontal and vertical alignment. This may necessitate more advanced algorithms and sensor technologies.

[0005] Communication signal interference: Drones in gaps may interfere with each other's communication signals. Ensuring that communication systems can function properly under these conditions is crucial.

[0006] The impact of wind: Wind in gaps can affect drones, causing them to become unstable or deviate from their intended positions. This may require stronger wind resistance and more advanced flight control systems.

[0007] Aerial positioning algorithms: For large-scale floating displays with uniform white space, more complex algorithms are needed to ensure that each drone maintains appropriate spacing and works collaboratively. This may involve real-time data analysis and processing.

[0008] Collision detection: Although leaving gaps can reduce the risk of collisions, an effective collision detection and avoidance system is still needed to prevent accidents from happening.

[0009] Regular adjustments: Due to changes in various external factors, such as temperature, humidity, and wind speed, it may be necessary to adjust the position and spacing of drones regularly to ensure that they always maintain the required layout.

[0010] The collision detection mentioned above needs to be adjusted promptly when the detected boundary gap is lower than the set value. Since the large display screen is composed of several display units, each unit should be suspended in a set position in the air. Therefore, the outer contour size can only be adjusted for a single display unit, and cannot be adjusted by moving its position in the air.

[0011] Therefore, the inventors believe it is necessary to develop a control system and method for an aerial screen that can adjust the outer contour size of individual display units to improve reliability during aerial display. Summary of the Invention

[0012] The purpose of this invention is to address the aforementioned problems in the prior art by providing a control system and method for an air-to-air screen.

[0013] The objective of this invention is achieved through the following technical solutions:

[0014] A control system for an aerial display includes a plurality of matrix-distributed display units and a drone for supporting the display units; the display units are located on the side or below the drone; the drone is equipped with flight control circuitry and further includes a control circuitry communicatively connected to the plurality of flight control circuitry; the display units are equipped with boundary drive circuitry communicatively connected to the flight control circuitry; when the boundary gap between adjacent display units is less than a set value, the boundary drive circuitry outputs a control signal to a boundary drive mechanism to reduce the boundary position of the display unit, so that the boundary gap is restored to a value greater than or equal to the set value.

[0015] The further technical solution is as follows: the display unit is rectangular, including a fixed block located at the center, side movable blocks located on the four sides, and corner movable blocks located at the four corners; the fixed block is provided with a side hinge for hinged with the side movable blocks, and a corner hinge for hinged with the corner movable blocks; when adjusting the boundary gap, the rotation direction of the side movable blocks is opposite to the rotation direction of the corner movable blocks.

[0016] The further technical solution includes: a central support between the fixed block of the display unit and the drone; a side support between the side wall of the central support and the side movable block; and a corner support between the side wall of the central support and the corner movable block. The corner support includes a corner connecting seat fixedly connected to the inner side of the corner movable block, a corner sliding seat slidably connected to the central support, and a corner connecting rod hinged between the corner connecting seat and the corner sliding seat. The side support includes a side connecting seat fixedly connected to the inner side of the side movable block, a side sliding seat slidably connected to the central support, and a side connecting rod hinged between the side connecting seat and the side sliding seat. The central support has four corner sliding seats. The system includes a groove for embedding the corner sliding seat and four side sliding grooves for embedding the side sliding seat. The inner side of each corner sliding groove is also provided with a corner lead screw that is throttle-connected to the corner sliding seat. One end of the corner lead screw is connected to a corner motor, which drives the corner lead screw to rotate, thereby moving the corner sliding seat forward or backward. The corner moving block then rotates forward or backward via the corner connecting rod. Similarly, the inner side of each side sliding groove is also provided with a side lead screw that is throttle-connected to the side sliding seat. One end of the side lead screw is connected to a side motor, which drives the side lead screw to rotate, thereby moving the side sliding seat forward or backward. The side moving block then rotates forward or backward via the side connecting rod.

[0017] The further technical solution is as follows: the central support includes a far-end support fixedly connected to the fixed block, a near-end support fixedly connected to the UAV, and a sliding groove support disposed between the far-end support and the near-end support; the sliding groove support is provided with the side sliding groove and the corner sliding groove.

[0018] The further technical solution is as follows: the display unit is located on the side of the drone; it also includes a battery connected to the drone, and the battery and the display unit are respectively located on opposite sides of the drone.

[0019] The further technical solution is as follows: the display unit is a hollow skeleton structure, and the display element is provided on the body of the skeleton.

[0020] The further technical solution is as follows: it also includes a backup display unit located behind the matrix-distributed display unit; in the matrix-distributed display circuit, if any display unit fails, it is removed from the matrix distribution position and replaced by the backup display unit.

[0021] The further technical solution is as follows: the UAV also includes a power supply circuit, a communication circuit, and a detection circuit for detecting boundary gaps connected to the flight control circuit.

[0022] The control method of the aerial display control system identifies a passive unit when the detection circuit on only one side of a display unit detects a distance smaller than the boundary gap. The adjacent display units on that side are identified as active units. The passive unit's side motors and corner motors, corresponding to that side or all four sides, start working in opposite directions to increase the boundary gap to a value greater than or equal to a set value. In other words, when a display unit becomes active due to uncontrollable factors such as loss of control or wind speed, its adjacent display units are defined as passive units. The passive units actively adjust their outer contour dimensions to increase the boundary gap to a value greater than or equal to the set value, ensuring that interference between drones does not lead to loss of control.

[0023] The further technical solution is as follows: the UAV is also equipped with a flight drive circuit connected to the flight control circuit, and is also equipped with several rotors and rotor motors connected to the rotor transmission. The control information of the flight drive circuit is used for the control of the rotor motors.

[0024] Compared with existing technologies, the beneficial effects of this invention are as follows: Each UAV in the control system of the aerial screen of this invention is equipped with a boundary drive mechanism. When the boundary gap is less than a set value, it will start working, reducing the outer contour of the display unit in two directions: forward rotation and backward rotation, thereby ensuring a safe distance between the two display units and improving the reliability of the aerial screen when working in the air. The side brackets and corner brackets used form a triangular support, which constitutes a stable support and improves the overall rigidity of the display unit. The structure of using a motor to drive a lead screw to adjust the sliding seat has a good self-locking effect. Attached Figure Description

[0025] Figure 1 This is a front view of the display unit in a specific embodiment of the control system of the air screen of the present invention;

[0026] Figure 2 for Figure 1 Rear view;

[0027] Figure 3 for Figure 2 A partial view of the center position;

[0028] Figure 4 for Figure 1 A top view (only two connecting rods are shown);

[0029] Figure 5 for Figure 4 A partial view of the display unit section (only two connecting rods are shown);

[0030] Figure 6 for Figure 5 A partial view of the slide rail support section (only two motors are shown);

[0031] Figure 7 To adopt Figure 1 Front view of the entire aerial screen composed of display units;

[0032] Figure 8 This is a front view of the display unit of another specific embodiment of the control system of the air screen of the present invention;

[0033] Figure 9 The circuit connection diagram is for another specific embodiment of the control system of the aerial screen of the present invention (only the connection relationship between the control circuit, a drone, and a display unit is shown).

[0034] Figure Labels

[0035] S control system

[0036] 10 display units

[0037] 100 Boundary drive circuit 101 Display element

[0038] 102 Side hinge 103 Corner hinge

[0039] 11 Fixed Blocks

[0040] 12 Side Activity Blocks 13 Corner Activity Blocks

[0041] 20 drones

[0042] 201 Rotor 202 Rotor Motor

[0043] 30 Flight control circuit

[0044] 31 Power supply circuit 32 Communication circuit

[0045] 33 Detection Circuit 34 Flight Drive Circuit

[0046] 40 Central stent 401 Remote stent

[0047] 402 Proximal stent; 403 Slide stent

[0048] 42 Side bracket

[0049] 420 Side slide groove 421 Side connecting seat

[0050] 422 Side sliding seat 423 Side connecting rod

[0051] 424 Side lead screw; 425 Side motor

[0052] 43 Corner Bracket

[0053] 430 Corner slide groove; 431 Corner connecting seat

[0054] 432 Corner sliding seat; 433 Corner connecting rod

[0055] 434 Angle Screw; 435 Angle Motor

[0056] 80 Battery 90 Control Circuit Detailed Implementation

[0057] To better understand the technical content of the present invention, the technical solution of the present invention will be further introduced and explained below with reference to specific embodiments, but is not limited thereto.

[0058] like Figures 1 to 7 As shown, the control system S of an aerial screen according to the present invention includes a plurality of matrix-distributed display units 10 and a drone 20 for supporting the display units 10; the display units 10 are located on the side or below the drone 20; the drone 20 is provided with a flight control circuit 30, and also includes a control circuit 90 that is communicatively connected to the plurality of flight control circuits 30; the display unit 10 is provided with a boundary drive circuit 100 that is communicatively connected to the flight control circuit 30; when the boundary gap between adjacent display units 10 is less than a set value, the boundary drive circuit 100 outputs a control signal to the boundary drive mechanism to reduce the boundary position of the display unit so that the boundary gap is restored to a value greater than or equal to the set value.

[0059] The display unit 10 is rectangular and includes a fixed block 11 at the center, side movable blocks 12 on the four sides, and corner movable blocks 13 at the four corners. The fixed block 11 is provided with a side hinge 102 for hinged to the side movable blocks 12 and a corner hinge 103 for hinged to the corner movable blocks 13. When adjusting the boundary gap, the rotation direction of the side movable blocks 12 and the rotation direction of the corner movable blocks 13 are opposite to prevent interference.

[0060] In other embodiments, the rotation directions can be the same, but the angles can be different, which can also prevent interference. Because for the same rotation angle, the outermost edge of the corner active block has a larger contraction distance across the entire display plane, when the rotation direction of the side active block 12 and the rotation direction of the corner active block 13 are the same, the side active block is rotated first, and then the corner active block is rotated. To prevent root interference, the gap between the adjacent positions of the corner active block 13 and the side active block 12 has an innermost end larger than the outermost end, presenting an inverted cone shape.

[0061] It also includes a central support 40 located between the fixed block 11 of the display unit 10 and the drone 20, a side support 42 located between the side wall of the central support 40 and the side movable block 12, and a corner support 43 located between the side wall of the central support 40 and the corner movable block 13.

[0062] The corner bracket 43 includes a corner connecting seat 431 fixedly connected to the inner side of the corner movable block 13, a corner sliding seat 432 slidably connected to the central bracket 40, and a corner connecting rod 433 hinged between the corner connecting seat 431 and the corner sliding seat 432.

[0063] The side support 42 includes a side connecting seat 421 fixedly connected to the inner side of the side movable block 12, a side sliding seat 422 slidably connected to the central support 40, and a side connecting rod 423 hinged between the side connecting seat 421 and the side sliding seat 422.

[0064] The central support 40 is provided with four corner grooves 430 to fit into corner sliding seats 432, and four side grooves 420 to fit into side sliding seats 422.

[0065] The inner side of the corner slide groove 430 is also provided with a corner lead screw 434 that is connected to the corner sliding seat 432. One end of the corner lead screw 434 is connected to a corner motor 435. The corner motor 435 drives the corner lead screw 434 to rotate, thereby driving the corner sliding seat 432 to move forward or backward. Then, through the corner connecting rod 433, it drives the corner movable block 13 to rotate forward or backward. The inner side of the corner sliding seat 432 is provided with a corner nut seat 436 that is connected to the corner lead screw 434. The outer side of the corner sliding seat 432 is also provided with a corner outer stop 437, so that the corner sliding seat 432 is clamped in the corner slide groove 430 as a whole, and the corner lead screw 434 is only subjected to axial force, which improves the overall reliability and stability.

[0066] In other embodiments, to improve stability, the outer corner stop is further provided with an eccentric wheel acting on the outer side of the corner groove, and an eccentric motor with a worm gear reduction mechanism for driving the eccentric wheel. When the corner slide is not moving, the maximum eccentric position of the eccentric wheel is aligned with the outer side of the corner groove, generating a locking force (clamping force) on the corner slide. Before the corner motor rotates, the eccentric motor operates first. After the eccentric wheel deflects by an angle, its minimum eccentric position is aligned with the outer side of the corner groove. After releasing the locking force, the corner motor operates again, driving the corner slide to move. The eccentric motor and eccentric wheel are located on the outer corner stop, and the outer corner stop and the corner slide are detachable structures, making installation and maintenance very convenient. There can be two or four eccentric wheels, driven by one eccentric motor through a transmission mechanism such as gears. The angle range of the maximum eccentric position is between 30 and 60 degrees and the radius of the arc is the same, which makes it easier for the corner eccentric wheel in the locked state to maintain the self-locking state.

[0067] The inner side of the side slide groove 420 is also provided with a side lead screw 424 that is connected to the side sliding seat 422. One end of the side lead screw 424 is connected to a side motor 425. The side motor 425 drives the side lead screw 424 to rotate, thereby driving the side sliding seat 422 to move forward or backward. Then, through the side connecting rod 423, it drives the side movable block 12 to rotate forward or backward. The inner side of the side sliding seat 422 is provided with a side nut seat 426 that is connected to the side lead screw 424. The outer side of the side sliding seat 422 is also provided with a side outer stop 427, so that the side sliding seat 422 is clamped as a whole in the side slide groove 420, and the side lead screw 424 is only subjected to axial force, which improves the overall reliability and stability.

[0068] In other embodiments, to improve stability, the outer side stop is further provided with a side eccentric wheel acting on the outer side of the side slide groove, and a side eccentric motor with a worm gear reduction mechanism for driving the side eccentric wheel. When the side sliding seat is not moving, the maximum eccentric position of the side eccentric wheel is aligned with the outer side of the side slide groove, generating a locking force (clamping force) on the side sliding seat. Before the side motor rotates, the side eccentric motor works first. After the side eccentric wheel deflects by an angle, the minimum eccentric position is aligned with the outer side of the side slide groove. After releasing the locking force, the side motor works again, driving the side sliding seat to move. The side eccentric motor and the side eccentric wheel are located on the outer side stop, and the outer side stop and the side sliding seat are detachable structures, which is very convenient for installation and maintenance. There can be two or four side eccentric wheels, driven by one side eccentric motor through a transmission mechanism such as gears. The angle range of the maximum eccentric position is between 30 and 60 degrees and the radius of the arc is the same, which makes it easier for the side eccentric wheel in the locked state to maintain the self-locking state.

[0069] More specifically, the central support 40 adopts a segmented structure, which is easy to manufacture and install. It includes a distal support 401 fixedly connected to the fixed block 11, a proximal support 402 fixedly connected to the drone 20, and a sliding support 403 located between the distal support 401 and the proximal support 402. The sliding support 403 has the aforementioned side sliding groove 420 and corner sliding groove 430. This structure is fastened by screws or other means, making it easy to disassemble and maintain. In actual manufacturing, low-density, high-strength materials such as ABS engineering plastics and carbon fiber can be used.

[0070] The display unit 10 is located on the side of the drone 20; it also includes a battery 80 connected to the drone 20, with the battery 80 and the display unit 10 respectively located on opposite sides of the drone 20 to balance the forces on the drone.

[0071] The display unit 10 is a hollowed-out skeleton structure, and the display element 101 is provided on the body of the skeleton structure.

[0072] like Figure 9 As shown, the UAV 20 also includes a power supply circuit 31, a communication circuit 32, and a detection circuit 33 for detecting boundary gaps, all connected to the flight control circuit 30. The UAV 20 also includes a flight drive circuit 34 connected to the flight control circuit 30, several rotors 201, and rotor motors 202 driven by the rotors 201. The control information from the flight drive circuit 34 is used to control the rotor motors 202. The UAV 20 also includes a display drive circuit 35 connected to the flight control circuit 30. The display drive circuit 35 is connected to the display element 101 and sends display signals to the display element 101. The detection circuit can employ either common ultrasonic detection or infrared detection.

[0073] In other embodiments, a backup display unit located behind the matrix-distributed display units is also included; in the matrix-distributed display circuit, if any display unit fails, it is removed from the matrix distribution position and replaced by the backup display unit.

[0074] The control method of the aerial display control system of the present invention identifies a display unit as a passive unit when the detection circuit on only one side of the display unit detects a distance smaller than the boundary gap. The adjacent display units on that side are identified as active units. The passive unit's side motors and corner motors, corresponding to that side or all four sides, start working in opposite directions to increase the boundary gap to a value greater than or equal to a set value. In other words, when a display unit becomes an active unit due to uncontrollable factors such as loss of control or wind speed, the adjacent display units are defined as passive units. The passive units actively adjust their outer contour dimensions to increase the boundary gap to a value greater than or equal to the set value, ensuring that interference between drones does not lead to loss of control or other consequences.

[0075] In other embodiments, such as Figure 8 As shown, the gaps between the side movable blocks located on the four sides and the corner movable blocks located at the four corners are perpendicular to the outer contour of the display unit. This is beneficial for the distribution design of the display elements. Figure 1-7 In the embodiment shown, an angled design is used to make the area of ​​the corner active block and the side active block more even and the force more similar, so as to facilitate the use of side brackets and corner brackets of similar size.

[0076] In summary, each UAV in the control system of the aerial screen of this invention is equipped with a boundary drive mechanism. When the boundary gap is less than a set value, it will start working, reducing the outer contour of the display unit in two directions: forward and backward rotation. This ensures a safe distance between the two display units and improves the reliability of the aerial screen during operation. The side brackets and corner brackets used form a triangular support, providing stable support and improving the overall rigidity of the display unit. The structure of using a motor to drive a lead screw to adjust the sliding seat has a good self-locking effect.

[0077] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A control system for an aerial display, comprising a plurality of matrix-distributed display units, and a drone for supporting the display units; characterized in that, The display unit is located on the side or below the UAV; the UAV is equipped with a flight control circuit, and also includes a control circuit that is communicatively connected to several of the flight control circuits; the display unit is equipped with a boundary drive circuit that is communicatively connected to the flight control circuit; when the boundary gap between adjacent display units is less than a set value, the boundary drive circuit outputs a control signal to the boundary drive mechanism to reduce the boundary position of the display unit so that the boundary gap is restored to a value greater than or equal to the set value.

2. The control system for an aerial display screen according to claim 1, characterized in that, The display unit is rectangular, including a fixed block at the center, four side movable blocks on the four sides, and corner movable blocks at the four corners; the fixed block is provided with a side hinge for hinged to the side movable blocks, and a corner hinge for hinged to the corner movable blocks; when adjusting the boundary gap, the rotation direction of the side movable blocks is opposite to the rotation direction of the corner movable blocks.

3. The control system for an aerial screen according to claim 2, characterized in that... It also includes a central support between the fixed block of the display unit and the drone, a side support between the side wall of the central support and the side movable block, and a corner support between the side wall of the central support and the corner movable block; the corner support includes a corner connecting seat fixedly connected to the inner side of the corner movable block, a corner sliding seat slidably connected to the central support, and a corner connecting rod hinged between the corner connecting seat and the corner sliding seat; the side support includes a side connecting seat fixedly connected to the inner side of the side movable block, a side sliding seat slidably connected to the central support, and a side connecting rod hinged between the side connecting seat and the side sliding seat; the central support is provided with four corner sliding grooves to embed the corner sliding seat and four side supports. A sliding groove is provided to embed the side sliding seat; the inner side of the corner sliding groove is also provided with a corner lead screw that is throttle connected to the corner sliding seat. One end of the corner lead screw is connected to a corner motor. The corner motor drives the corner lead screw to rotate, thereby moving the corner sliding seat forward or backward. Then, through the corner connecting rod, it drives the corner movable block to rotate forward or backward. The inner side of the side sliding groove is also provided with a side lead screw that is throttle connected to the side sliding seat. One end of the side lead screw is connected to a side motor. The side motor drives the side lead screw to rotate, thereby moving the side sliding seat forward or backward. Then, through the side connecting rod, it drives the side movable block to rotate forward or backward. The side motor and the corner motor constitute the boundary drive mechanism.

4. The control system for an aerial screen according to claim 4, characterized in that, The central support includes a distal support fixedly connected to the fixed block, a proximal support fixedly connected to the UAV, and a sliding support disposed between the distal support and the proximal support; the sliding support is provided with the side sliding groove and the corner sliding groove.

5. The control system for an aerial screen according to claim 4, characterized in that, The display unit is located on the side of the drone; it also includes a battery connected to the drone, with the battery and the display unit respectively located on opposite sides of the drone.

6. The control system for an aerial screen according to claim 5, characterized in that... The display unit is a hollowed-out skeleton structure, with display elements mounted on the skeleton body.

7. The control system for an aerial screen according to claim 6, characterized in that, It also includes a backup display unit located behind the matrix-distributed display unit; in the matrix-distributed display circuit, if any display unit fails, it is removed from the matrix distribution position and replaced by the backup display unit.

8. The control system for an aerial screen according to claim 5, characterized in that... The UAV also includes a power supply circuit, a communication circuit, and a detection circuit for detecting boundary gaps, all connected to the flight control circuit.

9. The control method of the control system according to claim 8, characterized in that, When the detection circuit on only one side of a certain display unit detects a distance smaller than the boundary gap, it is identified as a passive unit, and the adjacent display unit on that side is identified as an active unit. The passive unit corresponds to the side motor and corner motor of that side or all four sides starting to work in opposite directions to increase the boundary gap to a value greater than or equal to the set value.

10. The control method according to claim 9, characterized in that, The UAV is also equipped with a flight drive circuit connected to the flight control circuit, and has several rotors and rotor motors connected to the rotors. The control information of the flight drive circuit is used to control the rotor motors.

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