Holographic fan and linkage imaging system and method

Abstract

The invention discloses a holographic fan, a linkage imaging system and a linkage imaging method, which are characterized in that: a networked cooperative control architecture: a router is used as a center, time synchronization, data segmentation and real-time feedback calibration are integrated, and the problem of multi-device heterogeneous communication is solved; according to the cross-medium optical fusion algorithm, based on the actual imaging effect captured by the camera, the transparency of the holographic fan and the contrast ratio of the special-shaped screen are dynamically adjusted, and light field natural superposition is achieved; and automatic space calibration: automatically aligning a virtual content coordinate system with the position of the physical equipment by using affine transformation and a machine learning algorithm, and reducing manual intervention. According to the technology, the flexibility, the synchronization precision and the visual effect of a multi-modal display system are remarkably improved, and a new implementation path is provided for an immersive interaction scene.

Description

Technical Field

[0001] The present invention relates to the technical field of fans, and particularly to a holographic fan, an interactive imaging system and method. Background Art

[0002] With the rapid development of display technology, the combination of holographic projection and special-shaped screens has shown great potential in the fields of stage art, commercial exhibitions, architectural projection, etc. Traditional display solutions usually rely on a single technology to achieve imaging. For example:

[0003] In the holographic fan solution, a suspended image is generated by a high-speed rotating LED light bar using the persistence of vision effect. However, its imaging range is limited, it is difficult to cover complex backgrounds, and the coordination ability between dynamic content and static backgrounds is insufficient.

[0004] In the special-shaped screen solution, an irregular-shaped LED / LCD screen can be attached to the surface of a building or prop to display content, but it lacks a three-dimensional sense and a dynamic suspension effect.

[0005] In traditional multi-screen splicing technology, existing technologies mostly use physical splicing of the same type of screens (such as LCD or LED), and the edge fusion algorithm is used to eliminate the seams. However, such technologies cannot solve the optical superposition conflict between the transparent light field (holographic) and the solid light-emitting surface (screen), resulting in uneven picture brightness or transparency imbalance.

[0006] The main defects of the existing technologies include:

[0007] Insufficient synchronization accuracy: It is difficult to achieve millisecond-level synchronization between the mechanical rotation of the holographic fan and the electronic refresh of the special-shaped screen, resulting in misalignment between dynamic content and static backgrounds;

[0008] Poor optical compatibility: The semi-transparent property of holographic imaging is easily covered by the solid light-emitting surface of the special-shaped screen, or visual fragmentation occurs due to brightness differences;

[0009] Rigid network architecture: Point-to-point direct connections (such as HDMI or RS485) are relied on between multiple devices, with poor scalability and unable to support large-scale distributed deployment;

[0010] Calibration depends on manual work: Pixel mapping needs to be adjusted manually repeatedly, with low efficiency and unable to adapt to real-time environmental changes (such as device deformation caused by temperature). Summary of the Invention

[0011] The main object of the present invention is to solve the deficiencies mentioned in the above background art.

[0012] To achieve the above object, the present invention provides a holographic fan, comprising:

[0013] A fan frame;

[0014] Fan blades pivotally mounted to the fan frame;

[0015] A drive mechanism, which is arranged on the fan frame and is used to drive the fan blade to rotate;

[0016] A light bar, which is arranged on the fan blade and can rotate with the rotation of the fan blade;

[0017] A power transmission coil and a power receiving coil. The power transmission coil is sleeved on the drive mechanism. The power receiving coil is arranged on the fan blade and is electrically connected to the light bar. The power transmission coil and the power receiving coil are annular, and the power receiving coil is located inside the power transmission coil.

[0018] Preferably, a support platform is fixed on the fan frame, and the drive mechanism is arranged on the support platform.

[0019] Preferably, an installation frame is further provided. The installation frame is detachably and fixedly arranged on the fan frame. An installation groove is provided at the top of the installation frame. The drive mechanism is arranged in the installation groove. The fan blade can be pivotally assembled to the installation frame through the drive mechanism. A ring-shaped insertion part is provided on one side of the middle part of the fan blade close to the installation frame. The drive mechanism is located inside the insertion part. An annular accommodation space is formed by the outer peripheral wall of the insertion part and the inner side wall of the installation groove at intervals. The power transmission coil and the power receiving coil are located in the accommodation space.

[0020] Preferably, a clamping position for clamping the power receiving coil is provided on the outer peripheral wall of the insertion part.

[0021] Preferably, it further includes a PCB board electrically connected to the power transmission coil. The PCB board is arranged on the support platform and is spaced up and down relative to the bottom wall of the installation frame. The support platform is provided with screws. After the screws pass through the PCB board, they are screwed to the installation frame to lock the installation frame and the PCB board together on the support platform.

[0022] Preferably, a first wire groove penetrating the installation frame is provided on the bottom wall of the installation groove. The connection end of the power transmission coil passes through the first wire groove and is electrically connected to the PCB board.

[0023] Preferably, a receiving groove is provided on one side of the fan blade axis position far from the installation groove. A second wire groove communicating with the installation groove is formed through the bottom wall of the receiving groove. The connection end of the power receiving coil passes through the second wire groove and is electrically connected to the control component of the light bar.

[0024] The present invention also provides a linkage imaging system, including:

[0025] A main controller, which is used to generate and segment image data;

[0026] The above-mentioned holographic fan;

[0027] Bracket, the bracket is provided with at least two mounting positions for mounting the holographic fan, and one side of the connecting frame is provided with a special-shaped screen;

[0028] Router, as a network center, connects the main controller, the holographic fan and the special-shaped screen to realize the synchronous transmission of instructions and data;

[0029] Synchronization module, based on the Precision Time Protocol or the Network Time Protocol, aligns the rotation phase of the holographic fan with the display frame rate of the special-shaped screen;

[0030] Calibration unit, collects the actual imaging effect through a camera, and dynamically adjusts the pixel mapping relationship between the holographic fan and the special-shaped screen.

[0031] Preferably, the synchronization module further includes:

[0032] Timestamp marking unit, adds a synchronization timestamp to the data packets of each holographic fan and special-shaped screen;

[0033] Delay compensation unit, predicts the instruction delay according to the network round-trip time, and sends a control signal in advance;

[0034] The main controller performs the following operations:

[0035] Segment the original image into a dynamic layer and a static layer, where the dynamic layer is assigned to the holographic fan and the static layer is assigned to the special-shaped screen;

[0036] Lightweight encode the dynamic layer data to generate a JSON or binary instruction stream containing LED brightness and rotation speed;

[0037] Video stream encode the static layer data and transmit it to the special-shaped screen through the IP protocol;

[0038] Enable the quality of service policy to preferentially transmit the real-time control instructions of the holographic fan;

[0039] Divide an independent virtual local area network to isolate the data streams of the holographic fan and the special-shaped screen;

[0040] Support multicast transmission to reduce the repeated transmission of the same data to multiple holographic fans;

[0041] The calibration unit includes:

[0042] Image acquisition module, captures the actual imaging pictures of the holographic fan and the special-shaped screen through a camera;

[0043] Edge alignment algorithm, calculates the offset between the actual imaging and the preset coordinate system, and generates a correction matrix;

[0044] Transparency adjustment module, dynamically adjusts the LED brightness of the holographic fan to avoid optical superposition conflicts with the special-shaped screen.

[0045] The present invention also provides a linkage imaging method, which is applied to the above linkage imaging system, and the method comprises the following steps:

[0046] Step S1: The main controller receives the original image and divides it into a dynamic layer and a static layer;

[0047] Step S2: Send dynamic layer instructions to the holographic fan through the router, and send static layer video stream to the special-shaped screen;

[0048] Step S3: Synchronizing the rotation period of the holographic fan and the refresh period of the special-shaped screen based on the PTP protocol;

[0049] Step S4: Monitor the imaging effect in real time through the camera and feed it back to the calibration unit to adjust the pixel mapping;

[0050] Step S5: Dynamically compensate for network delay to ensure seamless splicing of the holographic fan and the special-shaped screen.

[0051] The core innovation of the present invention is:

[0052] Networked collaborative control architecture: Using a router as the hub, it integrates time synchronization, data segmentation, and real-time feedback calibration to solve the communication challenges faced by heterogeneous devices.

[0053] Cross-media optical fusion algorithm: Based on the actual imaging effect captured by the camera, the transparency of the holographic fan and the contrast of the special-shaped screen are dynamically adjusted to achieve natural superposition of light fields;

[0054] Automated spatial calibration: Utilizes affine transformation and machine learning algorithms to automatically align the virtual content coordinate system with the physical device position, reducing manual intervention.

[0055] This technology significantly improves the flexibility, synchronization accuracy and visual effects of multimodal display systems, providing a new implementation path for immersive interactive scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 This is the first angle exploded view of the holographic fan;

[0057] Figure 2 This is the second angle exploded view of the holographic fan;

[0058] Figure 3 It is a stereogram of the holographic fan;

[0059] Figure 4 is a schematic diagram of the bracket;

[0060] Figure 5 This is the command signal trend diagram of the linkage imaging system;

[0061] Figure 6It is a schematic diagram of a calibration data stream. Specific implementation mode

[0062] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0063] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative position relationship and movement conditions between components in a certain specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0064] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, then the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0065] The present invention provides a holographic fan.

[0066] In the embodiments of the present invention, as Figure 1 shown, the holographic fan includes:

[0067] A fan frame 1;

[0068] Fan blades 2, and the fan blades 2 are pivotally installed on the fan frame 1;

[0069] A driving mechanism 3, and the driving mechanism 3 is arranged on the fan frame 1 for driving the fan blades 2 to rotate;

[0070] A light bar 4, and the light bar 4 is arranged on the fan blades 2 and can rotate with the rotation of the fan blades 2;

[0071] A power transmission coil 5 and a power reception coil 6, the power transmission coil 5 is sleeved on the driving mechanism 3, the power reception coil 6 is arranged on the fan blade 2 and is electrically connected to the light bar 4, the power transmission coil 5 and the power reception coil 6 are annular, and the power reception coil 6 is located inside the power transmission coil 5.

[0072] Specifically, a support platform 11 is fixed to the fan frame 1, and the driving mechanism 3 is arranged on the support platform 11.

[0073] Specifically, an installation frame 7 is further provided. The installation frame 7 is detachably and fixedly arranged on the fan frame 1. An installation groove 71 is provided at the top of the installation frame 7. The driving mechanism 3 is arranged in the installation groove 71. The fan blade 2 is pivotally assembled to the installation frame 7 through the driving mechanism 3. A ring-shaped insertion portion 21 is provided on one side of the middle of the fan blade 2 close to the installation frame 7. The driving mechanism 3 is located inside the insertion portion 21. A ring-shaped accommodation space is formed by the outer peripheral wall of the insertion portion 21 and the inner side wall of the installation groove 71 at an interval. The power transmission coil 5 and the power reception coil 6 are located in the accommodation space.

[0074] Specifically, a clamping position 22 for clamping the power reception coil 6 is provided on the outer peripheral wall of the insertion portion 21.

[0075] Specifically, it further includes a PCB board 8 electrically connected to the power transmission coil 5. The PCB board 8 is arranged on the support platform 11 and is spaced apart from the bottom wall of the installation frame 7 up and down. The support platform 11 is provided with screws. The screws pass through the PCB board 8 and are screwed to the installation frame 7 to lock the installation frame 7 and the PCB board 8 together to the support platform 11.

[0076] Specifically, a first wire groove 72 penetrating the installation frame 7 is provided on the bottom wall of the installation groove 71. The connection end of the power transmission coil 5 passes through the first wire groove 72 and is electrically connected to the PCB board 8.

[0077] Specifically, a receiving groove 23 is provided on one side of the fan blade 2 away from the installation groove 71 at the axial center position. A second wire groove 24 communicating with the installation groove 71 is formed through the bottom wall of the receiving groove 23. The connection end of the power reception coil 6 passes through the second wire groove 24 and is electrically connected to the control component of the light bar 4.

[0078] A housing 9 is detachably fixed to the fan blade 2. The light bar 4 is detachably inserted into the housing 9. And a long strip-shaped avoidance groove 91 is provided on one side of the housing 9 away from the fan blade 2 to expose the LED lamp beads on the light bar 4 through the avoidance groove 91. A cavity for accommodating the control component is provided at the position of the housing 9 corresponding to the lower part of the light bar 4.

[0079] For this reason, the present invention also proposes a linkage imaging system, including:

[0080] A main controller for generating and dividing image data;

[0081] The above-mentioned holographic fan;

[0082] A bracket 01, which is provided with at least two mounting positions for mounting the holographic fan, and one side of the connecting frame is provided with a special-shaped screen 02;

[0083] A router, which is used as a network hub to connect the main controller, the holographic fan and the special-shaped screen to realize the synchronous transmission of instructions and data;

[0084] A synchronization module, which synchronizes the rotation phase of the holographic fan and the display frame rate of the special-shaped screen based on the Precision Time Protocol or the Network Time Protocol;

[0085] A calibration unit, which collects the actual imaging effect through a camera and dynamically adjusts the pixel mapping relationship between the holographic fan and the special-shaped screen.

[0086] Specifically, the synchronization module further includes:

[0087] A timestamp marking unit, which adds a synchronization timestamp to the data packets of each holographic fan and special-shaped screen;

[0088] A delay compensation unit, which predicts the instruction delay according to the network round-trip time and sends a control signal in advance;

[0089] The main controller performs the following operations:

[0090] Segment the original image into a dynamic layer and a static layer, where the dynamic layer is assigned to the holographic fan and the static layer is assigned to the special-shaped screen;

[0091] Perform lightweight encoding on the dynamic layer data to generate a JSON or binary instruction stream containing LED brightness and rotation speed;

[0092] Perform video stream encoding on the static layer data and transmit it to the special-shaped screen through the IP protocol;

[0093] Enable the quality of service policy to preferentially transmit the real-time control instructions of the holographic fan;

[0094] Divide an independent virtual local area network to isolate the data streams of the holographic fan and the special-shaped screen;

[0095] Support multicast transmission to reduce the repeated transmission of the same data to multiple holographic fans;

[0096] The calibration unit includes:

[0097] An image acquisition module, which captures the actual imaging pictures of the holographic fan and the special-shaped screen through a camera;

[0098] An edge alignment algorithm, which calculates the offset between the actual imaging and the preset coordinate system and generates a correction matrix;

[0099] The transparency adjustment module dynamically adjusts the LED brightness of the holographic fan to avoid optical superposition conflicts with the special-shaped screen.

[0100] The present invention also proposes a linkage imaging method, which is applied to the above-mentioned linkage imaging system. The method includes the following steps:

[0101] Step S1: The main controller receives the original image and divides it into a dynamic layer and a static layer;

[0102] Step S2: Send the dynamic layer instruction to the holographic fan through the router and send the static layer video stream to the special-shaped screen;

[0103] Step S3: Synchronize the rotation period of the holographic fan and the refresh period of the special-shaped screen based on the PTP protocol;

[0104] Step S4: Real-time monitor the imaging effect through the camera and feedback it to the calibration unit to adjust the pixel mapping;

[0105] Step S5: Dynamically compensate for network latency to ensure seamless splicing of the images of the holographic fan and the special-shaped screen.

[0106] Specifically, the step S2 further includes:

[0107] The holographic fan instruction is transmitted using the UDP protocol, and the special-shaped screen video stream is transmitted using the NDI or RTSP protocol;

[0108] Perform redundancy check on the holographic fan instruction and trigger the retransmission mechanism when a data packet is lost.

[0109] Specifically, in the step S4, the calibration unit performs the following operations:

[0110] Identify the edge contour of the holographic fan imaging and the boundary of the content displayed on the special-shaped screen;

[0111] Use the affine transformation algorithm to align the virtual coordinate system with the actual physical coordinate system;

[0112] If the detected brightness difference exceeds the threshold, automatically adjust the LED drive current of the holographic fan.

[0113] Specifically, it further includes a security module:

[0114] Perform AES-256 encryption on the communication links of the holographic fan and the special-shaped screen;

[0115] If an unauthorized device is detected accessing the router, immediately interrupt the data stream and trigger an alarm.

[0116] Specifically, the main controller can be a dedicated intermediate layer device between the terminal device and the holographic fan, or can be implemented by combining a high-performance computer and professional software.

[0117] Specifically, the terminal device can be a mobile phone or a computer. In actual use, the mobile phone or the computer sends an instruction signal through a dedicated software to the router acting as a transfer station. After receiving and integrating the instruction signal, the router sends it to the corresponding device. Of course, the mobile phone or the computer can also first send the instruction signal to the main controller. After receiving and integrating it, the main controller sends it to the router, and the router further integrates it.

[0118] Specifically, the way of realizing electrical connection between the mobile phone, the computer, the router and the holographic fan through a wired module or a wireless module belongs to the prior art, and the specific structural principle thereof will not be elaborated herein.

[0119] Specifically, the overall direction of the instruction signal of the present invention is: [User Terminal] → [Router] → [Main Controller] → [Router] → [Execution Device (Holographic Fan / Shaped Screen)].

[0120] Detailed explanation of the step-by-step process:

[0121] Step 1: The user terminal initiates an instruction.

[0122] Device: Mobile phone / computer / tablet

[0123] Operation: Send an instruction through the App or control software (such as playing content, adjusting brightness).

[0124] Communication protocol:

[0125] HTTP / REST API (non-real-time instruction, such as start / stop).

[0126] WebSocket / MQTT (real-time control instruction, such as dynamic parameter adjustment).

[0127] Step 2: The router receives and forwards it to the main controller.

[0128] Role of the router:

[0129] Verify user permissions (such as IP whitelist, Token verification).

[0130] Forward the instruction to the fixed IP of the main controller (such as 192.168.1.2:8080).

[0131] Network configuration:

[0132] Port mapping: External requests are forwarded to the internal network address of the main controller through NAT.

[0133] Firewall rule: Only allow communication on specific ports (such as TCP 8080, UDP 6454).

[0134] Step 3: Main Controller Parsing and Decision Making

[0135] Core Processing Logic:

[0136] Content Loading: Load the media files specified by the user (such as videos, 3D models) from local or cloud.

[0137] Data Segmentation:

[0138] Dynamic Layer: Extract the elements to be displayed by the holographic fan (such as particle effects), and convert them into LED control instructions.

[0139] Static Layer: Generate a video stream adapted to the special-shaped screen (resolution and shape deformation processing).

[0140] Synchronization Strategy Generation:

[0141] Calculate the expected rotation phase of the holographic fan and the frame refresh time of the special-shaped screen.

[0142] Embed timestamps (such as PTP synchronization clock values).

[0143] Step 4: Main Controller Distributes Instructions to the Router

[0144] Holographic Fan Instructions:

[0145] Protocol: UDP (low latency) or Art-Net (lighting control standard).

[0146] Special-Shaped Screen Instructions:

[0147] Protocol: NDI (video stream), RTSP (real-time stream) or HDMI over IP.

[0148] Data Format: H.264 / H.265 encoded video stream, with resolution adapted to the shape of the special-shaped screen.

[0149] Step 5: Router Distributes to Execution Devices

[0150] Holographic Fan Group:

[0151] The router sends instructions to all fans via multicast or unicast.

[0152] Example: UDP packet is sent to 239.255.0.1:6454 (default multicast address of Art-Net).

[0153] Special-Shaped Screen Controller:

[0154] The video stream is pushed to the IP of the screen controller via the NDI protocol (such as 192.168.1.100:5960).

[0155] Step 6: Device Execution and Feedback

[0156] Holographic Fan:

[0157] The MCU chip analyzes the instructions and drives the motor and LED strip.

[0158] The status codes (such as rotation speed, temperature) are sent back to the main controller via UDP.

[0159] Special-shaped Screen:

[0160] The controller decodes the video stream and outputs it to the screen.

[0161] The status (such as frame rate, temperature) is fed back via HTTP POST.

[0162] Step 7: Real-time Calibration of the Main Controller (Closed-loop Control)

[0163] Calibration Data Stream:

[0164] [Camera] → [Main Controller] → [Instruction Correction] → [Router] → [Execution Device]

[0165] The camera captures the actual imaging picture and analyzes the brightness / alignment deviation.

[0166] Dynamic Adjustment of the Main Controller:

[0167] The LED brightness of the holographic fan (to solve the transparency conflict).

[0168] The content offset of the special-shaped screen (to compensate for the physical installation error).

[0169] Furthermore, it also includes an exception handling mechanism, such as:

[0170] 1. Instruction Loss:

[0171] On the holographic fan side: If 3 consecutive UDP packets are not received, switch to the preset safe mode (such as constant-speed rotation).

[0172] On the special-shaped screen side: Interpolate frames or freeze the last frame when frame dropping occurs in the video stream.

[0173] 2. Network Interruption:

[0174] The main controller starts the local cache and loops to play the last received instruction.

[0175] 3. Device Failure:

[0176] The router detects that the device is offline (ARP timeout) and notifies the main controller to reallocate the content to the normal devices.

[0177] The core innovation of the present invention lies in:

[0178] Networked collaborative control architecture: Using a router as the hub, it integrates time synchronization, data segmentation, and real-time feedback calibration to solve the communication challenges faced by heterogeneous devices.

[0179] Cross-media optical fusion algorithm: Based on the actual imaging effect captured by the camera, the transparency of the holographic fan and the contrast of the special-shaped screen are dynamically adjusted to achieve natural superposition of light fields;

[0180] Automated spatial calibration: Utilizes affine transformation and machine learning algorithms to automatically align the virtual content coordinate system with the physical device position, reducing manual intervention.

[0181] This technology significantly improves the flexibility, synchronization accuracy and visual effects of multimodal display systems, providing a new implementation path for immersive interactive scenarios.

[0182] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A holographic fan, characterized in that, Comprising: A fan frame (1); Fan blades (2), which are pivotally mounted on the fan frame (1); A driving mechanism (3), which is arranged on the fan frame (1) and is used to drive the fan blades (2) to rotate; A light bar (4), which is arranged on the fan blades (2) and can rotate with the rotation of the fan blades (2); A power transmission coil (5) and a power receiving coil (6), the power transmission coil (5) is sleeved on the driving mechanism (3), the power receiving coil (6) is arranged on the fan blades (2) and is electrically connected to the light bar (4), the power transmission coil (5) and the power receiving coil (6) are in a ring shape, and the power receiving coil (6) is located inside the power transmission coil (5).

2. The holographic fan according to claim 1, wherein: A support table (11) is fixed on the fan frame (1), and the driving mechanism (3) is arranged on the support table (11).

3. The holographic fan according to claim 2, wherein: An installation frame (7) is further provided, the installation frame (7) is detachably and fixedly installed on the fan frame (1), an installation groove (71) is arranged at the top of the installation frame (7), the driving mechanism (3) is arranged in the installation groove (71), the fan blades (2) are pivotally assembled on the installation frame (7) through the driving mechanism (3), a ring-shaped insertion part (21) is arranged on one side of the middle part of the fan blades (2) close to the installation frame (7), the driving mechanism (3) is located inside the insertion part (21), and an annular accommodation space is formed by the outer peripheral wall of the insertion part (21) and the inner side wall of the installation groove (71) at an interval, and the power transmission coil (5) and the power receiving coil (6) are located in the accommodation space.

4. The holographic fan according to claim 3, characterized in that: A clamping position (22) for clamping the power receiving coil (6) is arranged on the outer peripheral wall of the insertion part (21).

5. The holographic fan according to claim 3, characterized in that: It further includes a PCB board (8) electrically connected to the power transmission coil (5), the PCB board (8) is arranged on the support table (11) and is spaced up and down relative to the bottom wall of the installation frame (7), and the support table (11) is provided with screws, and the screws pass through the PCB board (8) and are screwed with the installation frame (7) to lock the installation frame (7) and the PCB board (8) together on the support table (11).

6. The holographic fan according to claim 5, characterized in that: A first wire groove (72) penetrating through the installation frame (7) is arranged on the bottom wall of the installation groove (71), and the connection end of the power transmission coil (5) passes through the first wire groove (72) and is electrically connected to the PCB board (8).

7. The holographic fan according to claim 5, characterized in that: A receiving groove (23) is arranged on one side of the fan blades (2) away from the installation groove (71) at the axial center position, and a second wire groove (24) communicating with the installation groove (71) is formed through the bottom wall of the receiving groove (23), and the connection end of the power receiving coil (6) passes through the second wire groove (24) and is electrically connected to the control component of the light bar (4).

8. A linkage imaging system, characterized by Comprising: A main controller, which is used to generate and segment image data; The holographic fan according to any one of claims 1 to 7; A bracket (01), the bracket (01) is provided with at least two installation positions for installing the holographic fan, and a special-shaped screen (02) is arranged on one side of the connecting frame; A router, which is used as a network center to connect the main controller, the holographic fan and the special-shaped screen to realize synchronous transmission of instructions and data; The synchronization module aligns the rotation phase of the holographic fan with the display frame rate of the special-shaped screen based on the precise time protocol or network time protocol; The calibration unit captures the actual imaging effect through the camera and dynamically adjusts the pixel mapping relationship between the holographic fan and the special-shaped screen.

9. The linked imaging system according to claim 8, wherein: The synchronization module further comprises: Timestamp marking unit, adding synchronization timestamps to the data packets of each holographic fan and special-shaped screen; Delay compensation unit, which predicts instruction delay based on network round-trip time and sends control signals in advance; The main controller performs the following operations: The original image is divided into a dynamic layer and a static layer, wherein the dynamic layer is assigned to the holographic fan and the static layer is assigned to the special-shaped screen; Lightweight encoding of dynamic layer data to generate JSON or binary instruction streams containing LED brightness and rotation speed; Encode the static layer data into video stream and transmit it to the special-shaped screen via IP protocol; Enable the quality of service policy to prioritize the transmission of real-time control instructions for holographic fans; Divide an independent virtual LAN to isolate the data flow of the holographic fan and the special-shaped screen; Support multicast transmission to reduce repeated sending of the same data to multiple holographic fans; The calibration unit comprises: The image acquisition module uses a camera to capture the actual imaging images of the holographic fan and the special-shaped screen; Edge alignment algorithm calculates the offset between the actual imaging and the preset coordinate system and generates a correction matrix; The transparency adjustment module dynamically adjusts the LED brightness of the holographic fan to avoid optical superposition conflicts with the special-shaped screen.

10. A linkage imaging method, applied to the linkage imaging system according to any one of claims 8 and 9, characterized in that, The method comprises the following steps: Step S1: The main controller receives the original image and divides it into a dynamic layer and a static layer; Step S2: Send dynamic layer instructions to the holographic fan through the router, and send static layer video stream to the special-shaped screen; Step S3: Synchronizing the rotation period of the holographic fan and the refresh period of the special-shaped screen based on the PTP protocol; Step S4: Monitor the imaging effect in real time through the camera and feed it back to the calibration unit to adjust the pixel mapping; Step S5: Dynamically compensate for network delay to ensure seamless splicing of the holographic fan and the special-shaped screen.

Images