Polygonal prism folding type unmanned aerial vehicle regional display system

Abstract

The utility model discloses a polygon prism folding type unmanned aerial vehicle regional display system, and aims to solve the problems that an existing unmanned aerial vehicle display system is solidified in form, insufficient in screen splitting capacity, poor in wind resistance performance, low in economical efficiency and the like. The system comprises a foldable polygon prism frame, a regional display soft screen, a driving mechanism and a foldable soft screen control module. The foldable polygon prism frame is composed of a plurality of sections of rod bodies and connecting pieces and can be dynamically switched between a plane unfolding state and a polygon prism folding state. The regional display soft screen is arranged on the outer side face of the frame and can be synchronously folded or unfolded along with deformation of the frame, each region corresponds to one vertical face of the polygon prism during folding, and content can be displayed on the whole face or in a regional mode during unfolding. The driving mechanism is used for driving frame form switching; and the foldable soft screen control module is connected with the driving mechanism and the regional display soft screen, and dynamically distributes the display content of each region according to a frame form signal. The system is suitable for public safety, emergency rescue, military action and commercial propaganda scenes.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a multi-prism folding UAV regional display system, which is suitable for public safety, emergency rescue, military operations and commercial promotion scenarios. Background Technology

[0002] With the rapid development of drone technology, its application in advertising, event performances, and information dissemination is becoming increasingly widespread. Currently, the display systems on drones mainly adopt fixed multi-screen layouts or simple mechanical adjustment structures. While these can achieve basic information display, they have the following significant drawbacks in practical applications:

[0003] (1) It lacks the ability to display large-size dynamic visual information, and the display form is fixed and the direction is limited. For example, the utility model patent with announcement number CN216902104U discloses a display device that covers different directions by setting multiple screens in pairs opposite each other. Although the display angle is expanded, the screen form is fixed and cannot be dynamically folded or unfolded, resulting in high flight resistance and inability to adapt to the changing mission requirements. Moreover, the independent design of multiple screens significantly increases the weight and hardware cost, and the collaborative control is highly complex.

[0004] (2) Insufficient ability to display in different areas. For example, the utility model patent with announcement number CN204926753U discloses a multi-rotor advertising device. Although the screen angle can be flexibly adjusted by rotating the two-degree-of-freedom robotic arm, it relies on a physical drive mechanism and cannot achieve dynamic area control of a single soft screen. Moreover, no matter how it rotates, there are always some angles where the screen display content cannot be observed. Another example is the utility model patent with announcement number CN205862770U, which discloses a drone equipped with an aerial display screen. A virtual screen is formed by rotating an LED linear array, but the resolution is limited and the content cannot be switched in real time, making it difficult to meet the high-precision interaction requirements.

[0005] (3) Imbalance between wind resistance performance and energy efficiency. For example, the utility model patent with announcement number CN216902104U discloses a multi-screen layout of a display device that results in a large windward area, greater wind resistance, and significantly shortened battery life.

[0006] (4) Insufficient economic efficiency and scenario adaptability. For example, the utility model patent with announcement number CN209249043U discloses a towed drone aerial advertising system that relies on multiple drones to tow a large advertising screen. The equipment procurement and coordination costs are high (the cost of a single task increases by 2-3 times), and the poor wind resistance leads to frequent return flights and low maintenance efficiency.

[0007] (5) The audio and video interaction system is separated, lacks real-time performance, and has a single visual presentation. Due to the fixed form of the display device, the existing solution can only present planar content and lacks three-dimensional and multi-dimensional visual impact. For example, it cannot switch the content of each facade simultaneously when folded into a polyprism, which limits its application value in large-scale events, emergency command and other scenarios.

[0008] In summary, existing technologies struggle to balance functional flexibility, environmental adaptability, and economy. There is an urgent need for a drone display system that integrates dynamic form switching, regional display, and wind resistance optimization. Further innovation is required to overcome these limitations and break through the technical bottlenecks in multi-scenario applications. Summary of the Invention

[0009] Based on the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-prism folding drone regional display system to solve the problems of fixed shape, insufficient screen splitting capability, poor wind resistance performance and low economy of the existing drone display system.

[0010] The technical solution of this utility model lies in a multi-prism folding drone area display system, comprising:

[0011] The foldable polygonal frame is composed of several rods and connectors, and can dynamically switch between a planar unfolded state and a polygonal folded state.

[0012] The sub-regional display soft screen is configured on the outer side of the foldable polyprism frame. It folds or unfolds synchronously with the deformation of the foldable polyprism frame. The sub-regional display soft screen is divided into multiple independent control areas. When folded, each area corresponds to one face of the polyprism. When unfolded, it can display content on the entire surface or display content in sub-regions.

[0013] A drive mechanism is used to drive the hinge mechanism of the foldable polyhedral frame to rotate and change its shape.

[0014] The foldable soft screen control module is connected to the drive mechanism and the regional display soft screen, and dynamically allocates the display content of each region according to the foldable polyprism frame shape signal.

[0015] Preferably, the horizontal and vertical bars on the left and right sides of the foldable polygonal prism frame are connected to each other by connectors, two adjacent horizontal bars are rotatably connected by a hinge mechanism, and two corresponding upper and lower hinge mechanisms are connected to each other by vertical bars.

[0016] Preferably, the drive mechanism is mounted on a rod on the side of the hinge mechanism, and the power output end of the drive mechanism is connected to the power input end of the hinge mechanism so as to drive the hinge mechanism to rotate, thereby enabling the foldable polyprism frame to dynamically switch between a planar unfolded state and a polyprism folded state.

[0017] Preferably, the hinge mechanism includes a first hinge body, a hinge shaft, and a second hinge body. The first hinge body is provided with a first lateral connecting end for connecting to a crossbar, a first vertical connecting end for connecting to a vertical bar, and a first hinge shaft connecting end for connecting to the hinge shaft. The first vertical connecting end and the first hinge shaft connecting end are vertically opposite each other, and the first lateral connecting end is located beside the first vertical connecting end and the first hinge shaft. The second hinge body is provided with a second lateral connecting end for connecting to a crossbar, a vertical shaft hole for passing through the hinge shaft, and a power input end for transmission connection with a drive mechanism. The lower end of the hinge shaft is fixedly connected to the first hinge shaft connecting end of the first hinge body, the middle part of the hinge shaft passes through the shaft hole of the first hinge body and the second hinge body, and a transmission mechanism is installed at the upper end of the hinge shaft.

[0018] Preferably, a connecting part is provided around the area-divided display soft screen, and the connecting part is detachably connected to the foldable polygonal prism frame.

[0019] Preferably, the plurality of rod segments are lightweight hollow rods, and more preferably carbon fiber rods.

[0020] Preferably, the foldable soft screen control module includes a sensor and an electromagnet, which are installed on the left and right edges of the foldable polyprism frame. The sensor is used to detect the folded state of the foldable polyprism frame. Preferably, the sensor is a Hall sensor. The electromagnet is used to make the folding of the foldable polyprism frame precise and stable.

[0021] Preferably, the upper center of the foldable polyhedral frame is provided with a connection mechanism for interconnection with the drone.

[0022] Preferably, the connecting mechanism includes a rod connector, an intermediate connecting rod, and a hinge seat. The rod connector is installed on the upper middle part of the foldable polygonal prism frame. The two ends of the intermediate connecting rod are fixedly connected to the rod connector and the swing arm of the hinge seat, respectively. The seat plate of the hinge seat is connected to the UAV.

[0023] The beneficial effects of this utility model are:

[0024] (1) This utility model can realize multi-angle and diversified display. By configuring the segmented display soft screen on the outer surface of the foldable polyprism frame that can be deformed into a polyprism, the soft screen on each prism surface can display different content (such as text, images, and video streams) in different areas. In this way, the UAV can display different text, video, or image information to ground observers in different directions from the air, that is, simultaneously transmit differentiated information to ground observers in different directions, realize "one screen for multiple uses", greatly enrich the display content and form, significantly improve the information coverage efficiency, meet the diversified publicity and display needs, and is suitable for multiple scenarios such as military deterrence, emergency command, various large-scale events, and advertising.

[0025] (2) This utility model has higher wind resistance, and the prism shape design helps to reduce wind resistance. When the foldable prism frame is transformed into a prism frame, its structure is more compact, which can effectively reduce the frontal area and air resistance, thereby improving the stability and wind resistance of the UAV during flight, extending the endurance, and enhancing its applicability in complex environments.

[0026] (3) This utility model offers greater portability and flexibility. The foldable polygonal prism frame design allows the entire display device to be folded into a smaller volume when not in use. It is primarily connected by screws, making it easy to assemble and disassemble, and convenient to carry and transport. Simultaneously, this foldable and deformable structure allows the drone to better adapt to application needs in different scenarios, improving the device's flexibility and practicality. Furthermore, the easy-to-assemble and disassemble structure of the foldable polygonal prism frame makes rapid deployment or storage on-site very convenient. Users can quickly assemble a complete display system according to actual needs, or quickly disassemble it after use, saving time and labor costs.

[0027] (4) This utility model has a stronger visual impact and publicity effect. The deformation process of the foldable polyprism frame and the segmented display soft screen on it can achieve a dynamic display effect, which can attract more attention. By displaying different content on different prism surfaces, a more three-dimensional and richer visual effect can be created, further enhancing the effects of deterrence, psychological warfare, publicity and display. It is suitable for military deterrence, emergency command, various large-scale events, advertising and other scenarios.

[0028] (5) This utility model is beneficial to reducing costs and resource consumption. Compared with traditional methods such as multi-drone formation performances, this utility model can achieve diverse display effects by using a single drone equipped with a foldable multi-prism frame and a soft screen, reducing the number of drones required and equipment costs. At the same time, due to the improved wind resistance and extended flight time, energy consumption and operating costs are also reduced.

[0029] (6) This utility model has stronger customizability and scalability. The modular design of this utility model allows the size and shape of the frame to be adjusted according to specific needs. By increasing or decreasing the number of horizontal and vertical bars, or replacing different specifications of connectors, a display frame suitable for a specific scenario can be easily customized, and the frame can even be expanded to accommodate a larger display screen when needed.

[0030] (7) This utility model facilitates maintenance and component replacement. When a component of the foldable polygonal frame is damaged, due to its easy disassembly and assembly characteristics, the damaged component can be quickly located and replaced without large-scale repair of the entire frame, thus reducing maintenance costs and equipment downtime.

[0031] (8) This utility model can adapt to diverse environments. The easy-to-assemble and disassemble frame structure can better adapt to the special requirements of different venues. Whether it is an indoor or outdoor activity or a place with limited space, the assembly method of the frame can be flexibly adjusted to ensure the display effect while meeting the venue's limitations.

[0032] (9) This utility model is beneficial to reducing transportation costs. During transportation, the disassembled frame occupies less space, making it easier to pack and transport, thus reducing transportation costs and logistics complexity. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the multi-prism foldable UAV regional display system in Example 1.

[0034] Figure 2 This is a schematic diagram of the connecting mechanism in Example 1.

[0035] Figure 3 This is a schematic diagram of the drive mechanism and hinge mechanism in Example 1.

[0036] Figure 4 This is a schematic diagram of the multi-prism foldable UAV regional display system in Example 2.

[0037] Figure 5 This is a schematic diagram of the hinge mechanism without a power input end in the second hinge body of Embodiment 2.

[0038] In the diagram: 1—foldable polyhedral frame, 2—regional display soft screen, 3—drive mechanism, 4—foldable soft screen control module, 5—drone, 6—connection mechanism, 7—hinge mechanism;

[0039] 1.1—Horizontal bar, 1.2—Vertical bar, 1.3—Connector;

[0040] 2.1 — Connecting part; 2.2 — Stud connector; 2.3 — Oblong hole;

[0041] 3.1—Servo mount, 3.2—Servo, 3.3—Servo gear, 3.4—Rotating gear;

[0042] 4.1—Sensor; 4.2—Electromagnet;

[0043] 6.1—Ribbon connector, 6.2—Intermediate connecting rod, 6.3—Hinged seat, 6.31—Swing rod, 6.32—Seat plate;

[0044] 7.1—First hinge body, 7.2—Hinge shaft, 7.3—Second hinge body. Detailed Implementation

[0045] In order to enable those skilled in the art to understand the technical content of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings.

[0046] Example 1

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a multi-prism foldable UAV regional display system, mainly comprising a foldable multi-prism frame 1, a regional display soft screen 2, a drive mechanism 3, and a foldable soft screen control module 4. The foldable multi-prism frame 1 is composed of several rod segments and connectors, and can dynamically switch between a planar unfolded state and a multi-prism folded state. The arrows in the figure indicate the approximate direction of the transition from the planar unfolded state to the multi-prism folded state. The regional display soft screen 2 is disposed on the outer side of the foldable multi-prism frame 1, and folds or unfolds synchronously with the deformation of the foldable multi-prism frame 1, and is divided into multiple independent control areas. The drive mechanism 3 is used to drive the foldable multi-prism frame 1 to switch forms, and the foldable soft screen control module 4 dynamically allocates the display content of each area according to the form signal of the foldable multi-prism frame 1. The foldable soft screen control module 4 is installed on the UAV 5.

[0048] In this embodiment, a triangular prism is used as an example for explanation. If it is necessary to fold it into a quadrangular prism, pentagonal prism, etc., simply increase the number of corresponding rod segments and parts according to the same logic to achieve folding display of different prism shapes and meet diverse display needs.

[0049] like Figure 1 , Figure 2 and Figure 3As shown, the foldable polygonal prism frame 1 is composed of six equal-length horizontal bars 1.1, four equal-length vertical bars 1.2, and connecting parts (including right-angle connecting parts 1.3 and hinge mechanisms 7) forming a foldable triangular prism frame. The horizontal bars 1.1 and vertical bars 1.2 on the left and right sides of the foldable polygonal prism frame 1 are connected to each other via connecting parts 1.3. Two adjacent horizontal bars are rotatably connected via hinge mechanisms 7, and two corresponding hinge mechanisms 7 at the top and bottom are connected to each other via vertical bars 1.2. The horizontal bars 1.1 and vertical bars 1.2 are preferably made of lightweight hollow carbon fiber rods to reduce the overall weight and improve the flight performance of the UAV. A connecting mechanism 6 is provided on the upper middle part of the foldable polyprism frame 1 for interconnection with the drone 5. The connecting mechanism 6 includes a rod connector 6.1, an intermediate connecting rod 6.2 and a hinge seat 6.3. The two ends of the intermediate connecting rod 6.2 are fixedly connected to the swing rods 6.31 of the rod connector 6.1 and the hinge seat 6.3, respectively. The seat plate 6.32 of the hinge seat 6.3 is interconnected with the drone 5 to ensure the stable installation and disassembly of the foldable polyprism frame 1 on the drone 5.

[0050] like Figure 1 , Figure 2 and Figure 3 As shown, the drive mechanism 3 is mounted on the crossbar 1.1 beside the hinge mechanism 7, and its power output end is connected to the power input end of the hinge mechanism. Specifically, the drive mechanism 3 includes a servo mount 3.1 and a servo 3.2 mounted on the servo mount 3.1. The transmission mechanism includes a servo gear 3.3 and a rotating gear 3.4 that mesh with each other. The servo gear 3.3 is mounted on the output shaft of the servo 3.2 and rotates with the output shaft of the servo 3.2. The rotating gear 3.4 is fitted on the upper end of the hinge shaft 7.2 and rotates synchronously with the power input end of the second hinge body 7.3, thereby driving the hinge mechanism 7 to rotate and realizing the dynamic switching of the foldable polygonal prism frame 1 between the planar unfolded state and the polygonal prism folded state.

[0051] like Figure 1 , Figure 2 and Figure 3As shown, the hinge mechanism 7 is a key component for realizing the form switching of the foldable polygonal frame 1, and consists of a first hinge body 7.1, a hinge shaft 7.2, and a second hinge body 7.3. The first hinge body 7.1 has a first lateral connecting end for connecting to the crossbar 1.1, a first vertical connecting end for connecting to the vertical bar 1.2, and a first hinge shaft connecting end for connecting to the hinge shaft 7.2. The first vertical connecting end and the first hinge shaft connecting end are vertically opposite each other, and the first lateral connecting end is located on the side of the first vertical connecting end and the first hinge shaft. The second hinge body 7.3 has a second lateral connecting end for connecting to the crossbar 1.1, a vertical shaft hole for passing through the hinge shaft 7.2, and a power input end for transmission connection with the drive mechanism 3. The lower end of the hinge shaft 7.2 is fixedly connected to the first hinge shaft connection end of the first hinge body, and the middle part is sleeved on the shaft hole of the first hinge body 7.1 and the second hinge body 7.2. The upper end is equipped with a transmission mechanism (i.e., servo gear 3.3 and rotating gear 3.4). Through the power transmission of the drive mechanism 3, the hinge mechanism 7 is driven to rotate, thereby realizing the change of the shape of the foldable polygonal prism frame 1.

[0052] like Figure 1 As shown, a connecting part 2.1 is provided around the area of ​​the segmented display soft screen 2, which is detachably connected to the periphery of the foldable polyprism frame 1 via stud connectors 2.2. The periphery of the foldable polyprism frame 1 is provided with elongated holes 2.3, and the stud connectors 2.2 of the segmented display soft screen are respectively inserted into the elongated holes 2.3, providing deformation allowance for the segmented display soft screen 2 to follow the folding deformation of the foldable polyprism frame 1, and avoiding excessive pulling and damage to the segmented display soft screen 2.

[0053] like Figure 1 As shown, the foldable soft screen control module 4 is connected to the drive mechanism 3 and the area-divided display soft screen 2, and is responsible for dynamically allocating the display content of each area according to the shape signal of the foldable polyprism frame 1. The foldable soft screen control module 4 includes a sensor 4.1 and an electromagnet 4.2, which are installed on the left and right edges of the foldable polyprism frame 1. The sensor 4.1 is used to detect whether the frame is folded in place, preferably using a Hall sensor to accurately determine the shape state of the frame; the electromagnet 4.2 is used to ensure that the folding process of the frame is accurate and stable, avoiding deviations during shape switching caused by external forces or vibrations.

[0054] Example 2

[0055] like Figure 4 and Figure 5As shown, this embodiment provides a multi-prism foldable UAV regional display system that is largely the same as that in embodiment 1. The main difference is that in this embodiment, a second hinge body 7.3 with a power input end is provided between two adjacent crossbars on the upper side of the foldable multi-prism frame 1, while a second hinge body 7.3 without a power input end is provided between two adjacent crossbars on the lower side of the foldable multi-prism frame 1, and the length of the hinge shaft 7.2 is also shortened.

[0056] In summary, the multi-prism foldable UAV regional display system of this embodiment, through reasonable design and optimized materials, achieves flexible form switching, precise regional display, and good wind resistance and economy, providing strong support for the diversified application of UAVs in complex environments.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A multi-prism folding UAV regional display system, characterized in that, include: The foldable polygonal frame is composed of several rods and connectors, and can dynamically switch between a planar unfolded state and a polygonal folded state. The sub-regional display soft screen is configured on the outer side of the foldable polyprism frame. It folds or unfolds synchronously with the deformation of the foldable polyprism frame. The sub-regional display soft screen is divided into multiple independent control areas. When folded, each area corresponds to one face of the polyprism. When unfolded, it can display content on the entire surface or display content in sub-regions. A drive mechanism is used to drive the hinge mechanism of the foldable polyhedral frame to rotate and change its shape. The foldable soft screen control module is connected to the drive mechanism and the regional display soft screen, and dynamically allocates the display content of each region according to the foldable polyprism frame shape signal.

2. The multi-prism folding UAV regional display system according to claim 1, characterized in that: The horizontal and vertical bars on the left and right sides of the foldable polygonal prism frame are connected to each other by connectors. Two adjacent horizontal bars are rotatably connected by a hinge mechanism, and two corresponding hinge mechanisms at the top and bottom are connected to each other by vertical bars.

3. The multi-prism folding UAV regional display system according to claim 1 or 2, characterized in that: The drive mechanism is mounted on a rod on the side of the hinge mechanism. The power output end of the drive mechanism is connected to the power input end of the hinge mechanism to drive the hinge mechanism to rotate, thereby enabling the foldable polyprism frame to dynamically switch between a planar unfolded state and a polyprism folded state.

4. The multi-prism folding UAV regional display system according to claim 1, characterized in that: The hinge mechanism includes a first hinge body, a hinge shaft, and a second hinge body. The first hinge body has a first lateral connecting end for connecting to a crossbar, a first vertical connecting end for connecting to a vertical bar, and a first hinge shaft connecting end for connecting to the hinge shaft. The first vertical connecting end and the first hinge shaft connecting end are vertically opposite each other, and the first lateral connecting end is located beside the first vertical connecting end and the first hinge shaft. The second hinge body has a second lateral connecting end for connecting to a crossbar, a vertical shaft hole for passing through the hinge shaft, and a power input end for transmission connection with a drive mechanism. The lower end of the hinge shaft is fixedly connected to the first hinge shaft connecting end of the first hinge body, the middle part of the hinge shaft passes through the shaft hole of the first and second hinge bodies, and a transmission mechanism is installed at the upper end of the hinge shaft.

5. The multi-prism folding UAV regional display system according to claim 1, characterized in that: The area display soft screen is surrounded by a connecting part, which is detachably connected to the foldable polygonal prism frame.

6. The multi-prism folding UAV regional display system according to claim 1, characterized in that: The aforementioned rod segments are lightweight hollow rods.

7. The multi-prism folding UAV regional display system according to claim 1, characterized in that: The foldable soft screen control module includes a sensor and an electromagnet. The sensor and electromagnet are installed on the left and right edges of the foldable polyprism frame. The sensor is used to detect the folded state of the foldable polyprism frame, and the electromagnet is used to make the folding of the foldable polyprism frame precise and stable.

8. The multi-prism folding UAV regional display system according to claim 1, characterized in that: The upper center of the foldable polygonal frame is provided with a connection mechanism for interconnection with the drone.

9. The multi-prism folding UAV regional display system according to claim 8, characterized in that: The connecting mechanism includes a rod connector, an intermediate connecting rod, and a hinge seat. The rod connector is installed on the upper middle part of the foldable polygonal prism frame. The two ends of the intermediate connecting rod are fixedly connected to the rod connector and the swing arm of the hinge seat, respectively. The seat plate of the hinge seat is connected to the UAV.

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