Unmanned aerial vehicle-mounted laser smoke air imaging device

Abstract

This utility model discloses a drone-mounted laser smoke aerial imaging device. By integrating the smoke generation module and the laser imaging module onto the drone mounting device, the system can be moved to any suitable airspace for imaging display at any time, completely eliminating the dependence on the site for traditional fixed laser smoke systems. The integrated design of smoke generation, laser imaging, power supply and control modules results in a compact structure, reducing system complexity and operational difficulty. Compared with traditional aerial advertising equipment, the overall system cost is lower, operation is simpler, and no complex site construction and maintenance are required. At the same time, environmentally friendly smoke agents are used, causing no pollution to the environment. Each module adopts targeted heat dissipation and structural design to ensure the flight stability of the drone and the reliability of the equipment during long-term operation, meeting the application needs of various outdoor scenarios.

Description

Technical Field

[0001] This utility model relates to the technical field of interdisciplinary application of unmanned aerial vehicles (UAVs) and laser imaging technology, specifically a UAV-mounted laser smoke aerial imaging device. Background Technology

[0002] Currently, aerial dynamic imaging technology mainly relies on fixed, large-scale smoke generators and laser projection equipment. These systems are limited by specific site requirements, are complex to set up, and lack mobility, making it impossible to achieve flexible, multi-point aerial displays. At the same time, existing drone-mounted equipment has limited functionality, mainly focusing on aerial photography, lighting, or material delivery, lacking a comprehensive solution that efficiently integrates smoke generation with laser imaging.

[0003] Traditional aerial advertising or information display methods, such as airship banners and hot air balloons, suffer from problems such as static image content, high cost, inconvenient operation, and monotonous visual effects, making it difficult to meet the growing demand for dynamic and personalized aerial images in modern commercial promotion, celebration activities, and emergency command.

[0004] Therefore, there is an urgent need to design a drone-mounted laser smoke aerial imaging device that can solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a drone-mounted laser smoke aerial imaging device to solve the problem.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A drone-mounted laser smoke aerial imaging device includes a drone body, a smoke generation module, a laser imaging module, a power supply module, a control system, and a mounting device. The mounting device is connected to the main body of the UAV. The power supply module is electrically connected to the smoke generation module, the laser imaging module and the control system. The control system includes a ground control terminal located on the ground and an airborne control unit located on the UAV. The ground control terminal and the airborne control unit are connected wirelessly.

[0007] Furthermore, the smoke generation module includes an atomizer, a smoke agent storage tank, a peristaltic pump, and a heat dissipation assembly; The aerosol storage tank is connected to the atomizer via a peristaltic pump, and the peristaltic pump is signal-connected to the atomizer. The heat dissipation assembly includes a heat dissipation fan that is bolted to the atomizer, and heat-conducting fins are attached between the heat dissipation fan and the atomizer. The above technical solution generates and ejects an artificial aerosol smoke screen that can be used as an imaging medium.

[0008] Furthermore, the atomizing agent used in the smoke generation module is an environmentally friendly glycerol-propylene glycol mixture, and the atomizer can generate smoke with a particle diameter of 1-5 μm, forming an effective smoke curtain with a radius of - meters.

[0009] Furthermore, the laser imaging module includes a graphics processing unit, a laser emitter, and a scanning galvanometer. The graphics processing unit is signal-connected to the airborne control unit, the laser emitter is electrically connected to the graphics processing unit, and the scanning galvanometer is connected to the graphics processing unit and located in the laser emission path of the laser emitter. The above technical solution converts and projects a preset digital image signal into a visible laser image.

[0010] Furthermore, the laser emitter is a green laser with a wavelength of 532nm or a red laser with a wavelength of 650nm, the graphics processing unit supports a resolution of not less than 1024×768, an animation frame rate of 15-30fps, and an effective imaging distance of 5-20 meters.

[0011] Furthermore, the mounting device is made of carbon fiber material and is connected to the gimbal interface at the bottom of the drone body by bolts. The power supply module is a high-capacity lithium battery, which is fixedly installed in the lower middle part of the mounting device.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention, through a drone-mounted laser smoke aerial imaging device, achieves the following effects: 1. By integrating the smoke generation module and laser imaging module onto the drone mounting device, the system can be moved to any suitable airspace for imaging display at any time, completely eliminating the dependence on site for traditional fixed laser smoke systems; 2. The integrated design of smoke generation, laser imaging, power supply, and control modules results in a compact structure, reducing system complexity and operational difficulty. Compared to traditional aerial advertising equipment, the overall system cost is lower, operation is simpler, and no complex site setup and maintenance are required; 3. Environmentally friendly smoke agents are used, causing no pollution to the environment; each module adopts targeted heat dissipation and structural design, ensuring the flight stability of the drone and the reliability of the equipment during long-term operation, meeting the application needs of various outdoor scenarios. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the planar structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the smoke generation module of this utility model; Figure 4This is a schematic diagram of the laser imaging module of this utility model.

[0014] In the diagram: 1. Main body of the UAV; 2. Smoke generation module; 21. Atomizer; 22. Smoke agent storage tank; 23. Peristaltic pump; 24. Heat dissipation component; 3. Laser imaging module; 31. Graphics processing unit; 32. Laser emitter; 34. Scanning galvanometer; 4. Power supply module; 5. Control system; 51. Ground control terminal; 52. Airborne control unit; 6. Mounting device. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0016] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0017] Please see Figure 1-4 This embodiment provides a drone-mounted laser smoke aerial imaging device, including a drone body 1, a smoke generation module 2, a laser imaging module 3, a power supply module 4, a control system 5, and a mounting device 6. The mounting device 6 is connected to the drone body 1. The power supply module 4 is electrically connected to the smoke generation module 2, the laser imaging module 3, and the control system 5. The control system 5 includes a ground control terminal 51 located on the ground and an airborne control unit 52 located on the drone. The ground control terminal 51 and the airborne control unit 52 are connected wirelessly. The operator edits the content via the ground control terminal 51 and controls the drone to hover in the designated airspace, then issues a command. After receiving the command, the airborne control unit 52 first activates the smoke generation module 2, and the peristaltic pump 23 pumps the smoke agent into the atomizer 21 to atomize it into fine particles. At the same time, the heat dissipation component 24 works, and finally a stable smoke screen is formed behind the drone. Then the airborne unit activates the laser imaging module 3, and the graphics processing unit 31 converts the image data into a drive signal, controlling the laser and the scanning galvanometer 34 to work together to project the laser beam at high speed onto the smoke screen. Through particle diffuse reflection and visual persistence effect, a clear and stable dynamic image is formed in the air. After the mission is completed, the laser and smoke modules are turned off in sequence, and the drone returns to base.

[0018] like Figure 1 and Figure 2 and Figure 3 As shown, the smoke generation module 2 includes an atomizer 21, a smoke agent storage tank 22, a peristaltic pump 23, and a heat dissipation assembly 24. The smoke agent storage tank 22 is connected to the atomizer 21 via the peristaltic pump 23, and the peristaltic pump 23 is signal-connected to the atomizer 21. The heat dissipation assembly 24 includes a cooling fan connected to the atomizer 21 via bolts, and heat-conducting fins are attached between the cooling fan and the atomizer 21. The smoke agent used in the smoke generation module 2 is an environmentally friendly glycerol-propylene glycol mixture. The atomizer 21 can generate smoke with a particle diameter of 1-5 μm, and the effective smoke curtain radius is 3-8 meters. After receiving the start command, the airborne control unit 52 first sends a start signal to the smoke generation module 2. Upon receiving the start signal, the peristaltic pump 23 begins to work. Its motor rotates according to a preset speed, and through the rollers, it alternately squeezes the flexible pump tube to generate delivery power. This power pumps the environmentally friendly glycerol-propylene glycol mixture in the smoke agent storage tank 22 into the inlet of the atomizer 21 through the pipeline at a controlled flow rate. The speed of the peristaltic pump 23 directly determines the supply rate of the smoke agent, thereby ultimately controlling the concentration of the smoke. The transducer inside the atomizer 21 starts, transmitting high-frequency vibrations to the liquid, breaking it into fine particles with a diameter of 1-5μm, thus forming a thick white smoke. At the same time, the heat dissipation component 24 works synchronously. The heat generated by the atomizer 21 is quickly conducted away through the heat-conducting fins, while the cooling fan blows continuously to forcibly remove the heat from the fins, ensuring that the atomizer 21 will not be damaged by overheating during long-term operation. The atomized smoke particles are ejected from the smoke outlet under the action of a slight internal airflow or external natural wind, and spread behind the drone, eventually forming a relatively uniform and stable smoke screen with a radius of about 3-8 meters.

[0019] like Figure 1 and Figure 2 and Figure 4 As shown, the laser imaging module 3 includes a graphics processing unit 31, a laser emitter 32, and a scanning galvanometer 34. The graphics processing unit 31 is signal-connected to the airborne control unit 52, the laser emitter 32 is electrically connected to the graphics processing unit 31, and the scanning galvanometer 34 is connected to the graphics processing unit 31 and located in the laser emission path of the laser emitter 32. The laser emitter 32 uses a 532nm green laser or a 650nm red laser. The graphics processing unit 31 supports a resolution of no less than 1024×768, an animation frame rate of 15-30fps, and an effective imaging distance of 5-20 meters. After issuing the smoke activation command, the airborne control unit 52 waits for a short preset delay before sending an activation signal and imaging data to the laser imaging module 3. Upon receiving the imaging data, the graphics processing unit 31 immediately performs decoding operations. It decomposes the complete image into a series of high-speed, continuous frames and converts each frame into two synchronous control signals: a set of switching commands to instantly turn the laser emitter 32 on or off to form bright and dark points on the image, and a set of coordinate commands to control the deflection angle of the scanning galvanometer 34. Based on the received laser control signals, the laser emitter 32 emits a laser beam with a wavelength of 532nm (green) or 650nm (red), which immediately strikes the scanning galvanometer 34. Driven by the scanning control signals, the X-axis and Y-axis galvanometer motors within the scanning galvanometer 34 oscillate in tandem at extremely high speeds, thereby driving the reflective mirror and guiding the laser beam to perform precise scanning motion on a two-dimensional plane. The laser beam, guided by the scanning galvanometer 34, repeatedly scans the preset pattern on the smoke screen at a speed of thousands to tens of thousands of times per second, at a distance of 5-20 meters. The laser beam undergoes diffuse reflection on the smoke particles, and the scattered light enters the eyes of an observer on the ground. Due to the persistence of vision, the human eye cannot distinguish the rapid movement of the light points, thus perceiving all the light points scanned in an instant as a complete, stable, and dynamic clear image suspended in the air.

[0020] The mounting device 6 is made of carbon fiber and is connected to the gimbal interface at the bottom of the drone body 1 by bolts. The power supply module 4 is a high-capacity lithium battery, which is fixedly installed in the lower middle part of the mounting device 6.

[0021] The workflow of this utility model is as follows: When using this type of UAV-mounted laser smoke aerial imaging device, the operator first turns on the ground control terminal 51. In the software interface, the operator edits or selects specific patterns, text, or animation content to be projected from the library. After the content is edited, it is set as a task to be executed. The operator controls the UAV body 1 to take off and fly it to the predetermined imaging airspace, and then instructs the UAV to enter a hovering state to maintain spatial stability.

[0022] The operator issues a "start imaging" command through the interface of the ground control terminal 51. The command is packaged into a data packet and sent to the airborne control unit 52 of the UAV via a wireless communication link. The power supply module 4 continuously provides working power to the UAV body 1, the airborne control unit 52 and the various functional modules that are subsequently started throughout the process.

[0023] After receiving the start command, the airborne control unit 52 first sends a start signal to the smoke generation module 2. Upon receiving the start signal, the peristaltic pump 23 begins to work. Its motor rotates according to a preset speed, and through the rollers, it alternately squeezes the flexible pump tube to generate delivery power. This power pumps the environmentally friendly glycerol-propylene glycol mixture in the smoke agent storage tank 22 into the inlet of the atomizer 21 through the pipeline at a controlled flow rate. The speed of the peristaltic pump 23 directly determines the supply rate of the smoke agent, thereby ultimately controlling the concentration of the smoke. The transducer inside the atomizer 21 starts, transmitting high-frequency vibrations to the liquid, breaking it into fine particles with a diameter of 1-5μm, thus forming a thick white smoke. At the same time, the heat dissipation component 24 works synchronously. The heat generated by the atomizer 21 is quickly conducted away through the heat-conducting fins, while the cooling fan blows continuously to forcibly remove the heat from the fins, ensuring that the atomizer 21 will not be damaged by overheating during long-term operation. The atomized smoke particles are ejected from the smoke outlet under the action of a slight internal airflow or external natural wind, and spread behind the drone, eventually forming a relatively uniform and stable smoke screen with a radius of about 3-8 meters.

[0024] After issuing the smoke activation command, the airborne control unit 52 waits for a short preset delay before sending an activation signal and imaging data to the laser imaging module 3. Upon receiving the imaging data, the graphics processing unit 31 immediately performs decoding operations. It decomposes the complete image into a series of high-speed, continuous frames and converts each frame into two synchronized control signals: a set of switching commands to control the instantaneous on / off of the laser emitter 32 to form bright and dark points on the image, and a set of coordinate commands to control the deflection angle of the scanning galvanometer 34.

[0025] Based on the received laser control signal, laser emitter 32 emits a laser beam with a wavelength of 532nm (green) or 650nm (red), which immediately targets scanning mirror 34. Driven by the scanning control signal, the X-axis and Y-axis galvanometer motors within scanning mirror 34 oscillate in concert at extremely high speeds, thereby driving the reflecting mirror and guiding the laser beam to perform precise scanning motion on a two-dimensional plane. Guided by scanning mirror 34, the laser beam repeatedly scans a preset pattern on a smoke screen 5-20 meters away at a rate of thousands to tens of thousands of times per second. The laser beam undergoes diffuse reflection on the smoke particles, and the scattered light enters the eyes of an observer on the ground. Due to the persistence of vision effect, the human eye cannot distinguish the rapid movement of the light points, thus perceiving all the light points scanned in an instant as a complete, stable, and dynamic clear image suspended in the air.

[0026] Once the task is completed, the operator issues a stop command via ground control terminal 51. The airborne control unit 52 sequentially shuts down the laser imaging module 3 first, then the smoke generation module 2.

[0027] After the smoke dissipated naturally, the operator guided the drone back to land. The entire system process was then complete.

[0028] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. Among them, the UAV body, laser imaging module and peristaltic pump are existing mature technologies, so their principles will not be elaborated. The control method is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple circuit connection. It is common knowledge in the field, so this application will not explain the control method and circuit connection in detail.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone-mounted laser smoke aerial imaging device, characterized in that: It includes the main body of the drone (1), smoke generation module (2), laser imaging module (3), power supply module (4), control system (5) and mounting device (6); The mounting device (6) is connected to the main body of the UAV (1). The power supply module (4) is electrically connected to the smoke generation module (2), the laser imaging module (3) and the control system (5). The control system (5) includes a ground control terminal (51) located on the ground and an airborne control unit (52) located on the UAV. The ground control terminal (51) and the airborne control unit (52) are connected wirelessly.

2. The UAV-mounted laser smoke aerial imaging device according to claim 1, characterized in that: The smoke generation module (2) includes an atomizer (21), a smoke agent storage tank (22), a peristaltic pump (23), and a heat dissipation component (24). The atomizer storage tank (22) is connected to the atomizer (21) via a peristaltic pump (23), and the peristaltic pump (23) is signal-connected to the atomizer (21). The heat dissipation assembly (24) includes a heat dissipation fan that is bolted to the atomizer (21), and heat-conducting fins are attached between the heat dissipation fan and the atomizer (21).

3. The UAV-mounted laser smoke aerial imaging device according to claim 2, characterized in that: The smoke generating module (2) uses an environmentally friendly glycerol-propylene glycol mixture as the smoke agent. The atomizer (21) can generate smoke with a particle diameter of 1-5 μm, and the effective smoke curtain range radius is 3-8 meters.

4. The UAV-mounted laser smoke aerial imaging device according to claim 1, characterized in that: The laser imaging module (3) includes a graphics processing unit (31), a laser emitter (32), and a scanning galvanometer (34). The graphics processing unit (31) is signal-connected to the airborne control unit (52), the laser emitter (32) is electrically connected to the graphics processing unit (31), and the scanning galvanometer (34) is connected to the graphics processing unit (31) and located on the laser emission path of the laser emitter (32).

5. The UAV-mounted laser smoke aerial imaging device according to claim 4, characterized in that: The laser emitter (32) is a green laser with a wavelength of 532nm or a red laser with a wavelength of 650nm. The graphics processing unit (31) supports a resolution of not less than 1024×768, an animation frame rate of 15-30fps, and an effective imaging distance of 5-20 meters.

6. The UAV-mounted laser smoke aerial imaging device according to claim 1, characterized in that: The mounting device (6) is made of carbon fiber material and is connected to the gimbal interface at the bottom of the UAV body (1) by bolts. The power supply module (4) is a high-capacity lithium battery and is fixedly installed in the lower middle part of the mounting device (6).

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