An unmanned aerial vehicle precision delivery device and method

Abstract

The application discloses an unmanned aerial vehicle precision dropping device and method. The device is installed on the unmanned aerial vehicle platform through a connecting frame and comprises an edge computing board, a laser range finder, a detachable photoelectric pod, a laser anemograph and a driving and locking device. The driving and locking device is used for mounting, fixing and dropping the materials through locking and unlocking. The edge computing board receives data transmitted by the unmanned aerial vehicle platform, the laser anemograph, the laser range finder and a ground station display control terminal, and performs data calculation, path planning and mounting command. The laser range finder is used for measuring the distance between the unmanned aerial vehicle and the target. The detachable photoelectric pod is remotely connected to the ground station display control terminal and is used for optically tracking the target. The laser anemograph is used for detecting the wind speed and direction when the unmanned aerial vehicle drops the materials, and the wind speed data is transmitted to the edge computing board. The application can realize automatic, precise and rapid dropping of civil materials and meet the demand of low-altitude unmanned aerial vehicles for dropping life express and rescue materials.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV precision delivery device and method. Background Technology

[0002] With the rapid development of drone technology, drones have expanded from simple aerial photography and reconnaissance to multiple fields such as logistics and rescue. In the field of material delivery, whether it's improving delivery efficiency in the express delivery industry, spreading pesticides and seeds in agriculture, or transporting emergency medicines and supplies in the medical industry, drones have broad application prospects. However, achieving automated, precise, and rapid material delivery by drones still faces many challenges. In terms of delivery path planning and timing selection, traditional delivery methods mostly rely on pilots controlling drones and material delivery mechanisms, which cannot automatically plan and dynamically adjust according to real-time conditions. This excessive reliance on pilot skill leads to many uncertainties, longer delivery times, and larger deviations in delivery. Summary of the Invention

[0003] The purpose of this invention is to provide a drone precision delivery device and method to solve at least one of the above-mentioned technical problems. It can realize the automated, precise and rapid delivery of civilian materials, and meet the needs of low-altitude economic drones for precise delivery of daily necessities, relief supplies and the like.

[0004] The embodiments of the present invention are implemented as follows:

[0005] A precision delivery device for drones, which is mounted on a drone platform via a connecting frame, includes an edge computing board, a laser rangefinder, a detachable optoelectronic pod, a laser anemometer, and a drive and locking device.

[0006] The drive and locking device locks and unlocks to mount, fix, and deploy materials.

[0007] The edge computing board receives data transmitted from the UAV platform, the edge computing board, the laser rangefinder, and the ground station display and control terminal, and performs data calculation, path planning, and payload command.

[0008] The laser rangefinder is used to calculate the distance between the UAV and the target.

[0009] The detachable optoelectronic pod is remotely connected to the ground station display and control terminal to perform optical tracking of the target.

[0010] The laser anemometer is connected to the edge computing board to detect the wind speed and direction when the drone is deployed, and transmits the wind speed data to the edge computing board.

[0011] In a preferred embodiment of the present invention, the driving and locking device in the above-mentioned drone precision delivery device includes an electromechanical composite lock, an electric push rod, and a sensor.

[0012] When the electromagnetic mechanical composite latch is energized, it generates magnetic force, which attracts and aligns with the electric push rod, thus securing the materials.

[0013] When the electromagnetic mechanical composite lock loses power, the electric push rod unlocks, allowing the materials to be released.

[0014] The sensor is connected to the electromechanical composite latch to detect the latch status, monitor the contact pressure during mounting, and determine whether there is a loose connection.

[0015] In a preferred embodiment of the present invention, the laser rangefinder in the above-mentioned drone precision delivery device includes a transmitting unit, a receiving unit, a timing unit, and a control unit.

[0016] The emitting unit generates high-energy, highly directional laser pulses.

[0017] The receiving unit collects the laser signal reflected back from the target and focuses it onto the photodetector. The photodetector converts the laser signal into a laser electrical signal, which is then amplified by a preamplifier for data processing.

[0018] The timing unit measures the time interval between the emission and reception of the laser pulse.

[0019] The control unit is used to control the operation of the transmitting unit, the receiving unit and the timing unit, and to provide feedback on the ranging values ​​measured by the UAV platform.

[0020] A method for deploying a drone precision delivery device, comprising:

[0021] When a drone carries supplies for delivery, it selects and locks the delivery location based on environmental data received by the ground station terminal.

[0022] The drone operates at the optimal deployment altitude, which is recommended by a database based on the type of material to be deployed and is calculated by measuring the distance to the deployment location using a laser rangefinder.

[0023] A laser anemometer detects wind speed information.

[0024] The edge computing board calculates the delivery path and determines the delivery method based on the distance to the delivery location, the current coordinates of the drone, the drone speed, and the wind speed information. The delivery methods include free fall delivery, horizontal drop delivery, and dive delivery.

[0025] The edge computing board uses a deep learning large model to perform iterative calculations based on the determined delivery method, outputs a corresponding delivery trajectory planning scheme, and cooperates with the drone to perform the material delivery task according to the delivery trajectory planning scheme.

[0026] The drone precision delivery device is the same as the drone precision delivery device described above.

[0027] In a preferred embodiment of the present invention, in the deployment method of the above-mentioned drone precision deployment device, if the deployment method is free fall deployment, the deployment steps include:

[0028] Receives the drone's positioning information and the data transmitted by the laser rangefinder.

[0029] The edge computing board performs path calculations based on the distance to the deployment location, the current coordinates of the drone, the drone speed, and the wind speed information to obtain the time required for the supplies to land from deployment, and calculates the horizontal offset distance of the supplies due to wind influence.

[0030] Control the drone to hover at the offset distance above the target, unlock the drive and locking device, and drop the supplies downwards.

[0031] In a preferred embodiment of the present invention, the method for calculating the trajectory of the materials during free-fall delivery in the above-mentioned drone precision delivery device includes:

[0032] The vertical trajectory of the material movement is .

[0033] The trajectory of the material movement in the horizontal direction is .

[0034] in, This represents the vertical displacement. For the quality of materials, Where ρ is the air drag coefficient and ρ is the air density. The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. It is a hyperbolic cosine function. This represents the horizontal displacement. For horizontal wind speed, This refers to the windward area in the horizontal direction.

[0035] In a preferred embodiment of the present invention, in the deployment method of the above-mentioned drone precision deployment device, if the deployment method is a horizontal throwing deployment, the deployment steps include:

[0036] After the drone calibrates its direction of travel and the delivery location, the edge computing board performs path calculations based on the distance to the delivery location, the current coordinates of the drone, the drone's speed, and the wind speed information, to obtain the time required for the supplies to land from delivery.

[0037] Calculate the initial horizontal velocity of the material at the time of deployment and the horizontal distance it travels due to the influence of wind.

[0038] Upon entering a circle centered on the drop location and with the horizontal movement distance as its radius, the drive and locking device unlocks, the supplies are thrown out, and the drone maintains its travel speed, moving along a parabolic trajectory.

[0039] In a preferred embodiment of the present invention, the method for calculating the trajectory of the material during the horizontal throwing method in the above-mentioned drone precision delivery device includes:

[0040] The vertical trajectory of the material movement is .

[0041] The trajectory of the material movement in the horizontal direction is .

[0042] in, This represents the vertical displacement. For the quality of materials, The air drag coefficient, air density, The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. This represents the horizontal displacement. For horizontal wind speed, The horizontal velocity at the start of the supply deployment. This refers to the windward area in the horizontal direction.

[0043] In a preferred embodiment of the present invention, in the deployment method of the above-mentioned drone precision deployment device, if the deployment method is a dive-type deployment, the deployment execution steps include:

[0044] After locking onto the delivery location, the drone carrying the supplies flies over the target.

[0045] The UAV adjusts its flight attitude, tilting its nose downwards, and enters a dive attitude based on the calculated flight angle and initial velocity.

[0046] When the drone reaches the optimal deployment altitude, the edge computing board performs path calculations based on the distance to the deployment location, the current coordinates of the drone, the drone speed, and the wind speed information to obtain the time required for the supplies to land from deployment.

[0047] The drive and locking device is unlocked, releasing the supplies. The drone adjusts its attitude and resumes its predetermined flight path. The supplies continue to move along a parabola to the preset drop location.

[0048] In a preferred embodiment of the present invention, the method for calculating the trajectory of the materials during the dive-drop delivery of the above-mentioned drone precision delivery device includes:

[0049] The vertical trajectory of the material movement is .

[0050] The trajectory of the material movement in the horizontal direction is .

[0051] in, This represents the vertical displacement. For the quality of materials, The air drag coefficient, air density, The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. This represents the horizontal displacement. For horizontal wind speed, The horizontal velocity at the start of the supply deployment. The vertical speed at which supplies are initially deployed. This refers to the windward area in the horizontal direction.

[0052] The beneficial effects of the embodiments of the present invention are:

[0053] This invention can automatically select the material delivery method and trajectory planning based on a large model according to the selection of the delivery location, and control the drone and the mounting mechanism to achieve the delivery of materials, reducing the workload of operators and improving the accuracy and smoothness of material delivery. Attached Figure Description

[0054] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0055] Figure 1 This is a schematic diagram of the bottom structure of the drone precision delivery device of the present invention;

[0056] Figure 2 This is a front structural diagram of the drone precision delivery device of the present invention;

[0057] Figure 3 This is a schematic diagram of the structure of the drone precision delivery device of the present invention installed on a drone;

[0058] Figure 4 This is a schematic diagram of the deployment method of the drone precision delivery device of the present invention;

[0059] Figure 5 This is a schematic diagram of the free-fall delivery route in the delivery method of the drone precision delivery device of the present invention;

[0060] Figure 6 This is a schematic diagram of the horizontal throwing trajectory in the delivery method of the drone precision delivery device of the present invention;

[0061] Figure 7 This is a schematic diagram of the dive-type delivery route in the delivery method of the drone precision delivery device of the present invention;

[0062] Figure 8 This is a schematic diagram of an embodiment of the drone precision delivery device and drone of the present invention.

[0063] In the diagram: 1-UAV platform; 2-Edge computing board; 3-Laser rangefinder; 4-Detachable optoelectronic pod; 5-Laser anemometer; 6-Drive and locking device; 7-Electromagnetic mechanical composite lock; 8-Electric push rod; 9-Sensor; 10-Ground station terminal; 11-Connecting frame. Detailed Implementation

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0065] Please refer to Figures 1 to 3The first embodiment of the present invention provides a drone precision delivery device, which is mounted on a drone platform 1 via a connecting frame 11. It includes an edge computing board 2, a laser rangefinder 3, a detachable optoelectronic pod 4, a laser anemometer 5, and a drive and locking device 6. The drive and locking device 6 locks and unlocks to mount and deliver materials. The edge computing board 2 receives data transmitted from the drone platform 1, the edge computing board 2, the laser rangefinder 3, and the ground station display and control terminal 10, performs data calculations, path planning, and loading command. It processes and analyzes the data transmitted from the laser rangefinder 3, the drone platform 1, and the ground station display and control terminal 10, and calculates the path trajectory based on a large-scale delivery path planning model and deep learning algorithms. The system optimizes and iterates to achieve optimal deployment path planning and command and control of the UAV platform 1 and the UAV precision deployment device; the laser rangefinder 3 calculates the distance between the UAV and the target; the detachable optoelectronic pod 4 is remotely connected to the ground station display and control terminal 10 to perform optical tracking of the target, remote observation and monitoring of the target area, acquisition of real-time image information of the target, and target identification. When the operator locks onto the target through the ground station terminal 10, the optoelectronic pod performs optical tracking of the target and collects and records optoelectronic data; the laser anemometer 5 is connected to the edge computing board 2 to detect the wind speed and direction during UAV deployment, and transmits the wind speed data to the edge computing board 2 to provide data support for path planning of the optimal deployment location.

[0066] In a preferred embodiment of the present invention, in the above-mentioned drone precision delivery device, the driving and locking device 6 includes an electromagnetic mechanical composite latch 7, an electric push rod 8, and a sensor 9; when the electromagnetic mechanical composite latch 7 is energized, it generates magnetic force to assist in the alignment and rapid separation response of the electromagnetic latch, adsorbs and aligns with the electric push rod 8, and fixes the materials; when the electromagnetic mechanical composite latch 7 is de-energized, the electric push rod 8 unlocks and delivers the materials; the sensor 9 is connected to the electromagnetic mechanical composite latch 7 to detect the latch status, monitor the contact pressure during loading, and determine whether there is a loose connection.

[0067] In a preferred embodiment of the present invention, in the above-mentioned UAV precision delivery device, the laser rangefinder 3 includes a transmitting unit, a receiving unit, a timing unit, and a control unit; the transmitting unit generates a high-energy, highly directional laser pulse; the receiving unit collects the laser signal reflected back from the target and focuses it onto a photodetector; the photodetector converts the laser signal into a laser electrical signal, which is then amplified by a preamplifier for data processing; the timing unit measures the time interval between the laser pulse transmission and reception; and the control unit controls the operation of the transmitting unit, the receiving unit, and the timing unit, and provides feedback on the ranging values ​​measured by the UAV platform 1.

[0068] like Figure 8 As shown, if the UAV is originally equipped with a detachable optoelectronic pod 4, the detachable optoelectronic pod 4 does not need to be assembled. It can rely on the data collected by the UAV's own pod to lock and track targets and participate in the calculation and operation of the data link.

[0069] Please refer to Figures 1 to 7 The second embodiment of the present invention provides a method for the precise delivery of materials by a drone, comprising: when the drone carries materials for delivery, selecting and locking the delivery location based on environmental data received by the ground station terminal 10; the drone operates to the optimal delivery altitude, which is recommended in a database based on the type of materials to be delivered, and is obtained by measuring the distance to the delivery location using a laser rangefinder 3; a laser anemometer 5 detects wind speed information; an edge computing board 2 calculates the delivery path based on the distance to the delivery location, the current position coordinates of the drone, the drone speed, and the wind speed information, and determines the delivery method, which includes free fall delivery, horizontal throwing delivery, and diving delivery; the edge computing board 2 performs iterative calculations using a deep learning large model based on the determined delivery method, outputs a corresponding delivery trajectory planning scheme, and coordinates with the drone to perform the material delivery task according to the delivery trajectory planning scheme; the precise delivery device is the same as described above.

[0070] In a preferred embodiment of the present invention, in the above-mentioned drone precision delivery method, if the delivery method is free-fall delivery, the delivery steps include: receiving drone positioning information and data transmitted by the laser rangefinder 3; the edge computing board 2 performing path calculation based on the distance to the delivery location, the current position coordinates of the drone, the drone speed, and the wind speed information to obtain the time required for the material to land from delivery, and calculating the horizontal offset distance of the material due to wind influence; controlling the drone to hover at the offset distance above the target, driving and locking device 6 to unlock, and delivering the material downwards.

[0071] Influenced by horizontal wind speed, the supplies eventually land at the selected drop location. The advantage of this method is high accuracy; the items land precisely near the target location. Applicable scenarios include dropping small items to fixed and well-defined targets, such as dropping rescue supplies to people trapped on rooftops. The trajectory of the supplies is as follows... Figure 5 As shown.

[0072] In a preferred embodiment of the present invention, the delivery method of the above-mentioned UAV precision delivery device includes the following calculation method for the trajectory of the material movement in the free-fall delivery: the vertical trajectory of the material movement is... The trajectory of material movement in the horizontal direction is ;in, This represents the vertical displacement. For the quality of materials, Where ρ is the air drag coefficient and ρ is the air density. The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. It is a hyperbolic cosine function. This represents the horizontal displacement. For horizontal wind speed, This refers to the windward area in the horizontal direction.

[0073] In a preferred embodiment of the present invention, in the deployment method of the above-mentioned drone precision deployment device, if the deployment method is a horizontal throwing deployment, the deployment execution steps include: after the drone calibrates its forward direction and the deployment location, the edge computing board 2 performs path calculation based on the distance to the deployment location, the current position coordinates of the drone, the drone speed, and the wind speed information to obtain the time required for the material to land from deployment; calculates the initial horizontal velocity of the material at the time of deployment and the horizontal movement distance affected by the wind; when the material enters the circumference with the deployment location as the center and the horizontal movement distance as the radius, the drive and locking device 6 unlocks, the material is thrown out and maintains the drone's forward speed, moving along a parabola.

[0074] Utilizing the flight speed and parabolic trajectory of drones, supplies can be deployed to relatively distant locations. The overall deployment time is shorter than that of freefall deployment, and it can avoid obstacles to some extent. This is suitable for scenarios requiring deployment over distances or over obstacles, such as delivering supplies to disaster-stricken areas in the wild. The trajectory of the supplies is as follows... Figure 6 As shown.

[0075] In a preferred embodiment of the present invention, the delivery method of the above-mentioned drone precision delivery device includes the following calculation method for the trajectory of the material movement in the horizontal throwing method: the material movement trajectory in the vertical direction is... The trajectory of material movement in the horizontal direction is ;in, This represents the vertical displacement. For the quality of materials, The air drag coefficient, air density, The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. This represents the horizontal displacement. For horizontal wind speed, The horizontal velocity at the start of the supply deployment. This refers to the windward area in the horizontal direction.

[0076] In a preferred embodiment of the present invention, in the deployment method of the above-mentioned drone precision deployment device, if the deployment method is a dive-type deployment, the deployment steps include: after locking the deployment location, the drone carrying the supplies flies above the target; the drone adjusts its flight attitude, tilting its nose downwards, and adjusts into a dive attitude according to the calculated flight angle and initial velocity; when the drone reaches the optimal deployment height, the edge computing board 2 performs path calculation based on the distance to the deployment location, the current position coordinates of the drone, the drone speed, and the wind speed information to obtain the time required for the supplies to land from deployment; the drive and locking device 6 unlocks, releasing the supplies, the drone adjusts its attitude, resumes the predetermined flight route, and the supplies continue to move along a parabola to the preset deployment location.

[0077] Suitable for scenarios involving rapid traversal of complex terrain and providing logistical support for operations in special environments. The trajectory of the supplies is as follows: Figure 7 As shown.

[0078] In a preferred embodiment of the present invention, in the delivery method of the above-mentioned UAV precision delivery device, the calculation method for the trajectory of the material movement during the dive-delivery includes: the material movement trajectory in the vertical direction is... The trajectory of material movement in the horizontal direction is ;in, This represents the vertical displacement. For the quality of materials, The air drag coefficient, air density, The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. This represents the horizontal displacement. For horizontal wind speed, The horizontal velocity at the start of the supply deployment. The vertical speed at which supplies are initially deployed. This refers to the windward area in the horizontal direction.

[0079] The embodiments of the present invention aim to protect a drone precision delivery device and method, which has the following effects:

[0080] 1. This invention integrates edge computing boards, laser rangefinders, detachable optoelectronic pods, laser anemometers, drive and locking devices, etc., onto a UAV platform via a connecting frame, forming a unified and coordinated precision delivery system that adapts to complex and ever-changing application environments. It enables long-distance monitoring, real-time image acquisition, target recognition and automatic locking, and supports a collaborative working mechanism of manual target calibration and automatic system tracking, making it suitable for operations in high-risk and inaccessible areas.

[0081] 2. This invention achieves on-site intelligent computing through edge computing boards, avoiding latency risks and improving the efficiency of path planning and delivery method decisions. It is suitable for delivery scenarios with high real-time requirements, such as emergency delivery and rescue support. Precise distance information is obtained through laser ranging, and wind speed and direction are collected in real time by a laser anemometer, enabling more accurate delivery path and trajectory planning. Based on environmental data, autonomous learning, and training with historical data, the invention continuously optimizes delivery points and flight trajectories under different delivery methods, achieving higher delivery accuracy and robustness.

[0082] 3. This invention offers multiple delivery methods to meet the needs of different delivery scenarios, improving mission flexibility and applicability. Free-fall delivery offers high accuracy and is suitable for scenarios with well-defined targets and fixed locations. It can adjust the offset point in advance based on wind speed and material movement characteristics to ensure a successful hit. Projectile delivery uses flight speed for assisted delivery and is suitable for deliveries requiring obstacle crossing or medium-to-long-range travel. Combining initial velocity and wind speed enables longer-range and more curved coverage delivery missions. Dive delivery allows for rapid changes in flight altitude and can traverse complex terrain such as canyons and gaps between buildings. Through attitude adjustment and dive path calculation, it improves target accuracy and concealment.

[0083] 4. The invention features a safe and reliable structural design, with intelligent control for payload release, ensuring mission stability. The design of the electromagnetic-mechanical composite latch and electric push rod improves payload reliability, ensures the stability of supplies during flight, provides rapid unlocking response, and allows for controllable delivery, ensuring the spatiotemporal accuracy of the delivery point. Sensors monitor the latch status and payload contact pressure to prevent loose connections and misdeliveries, improving mission safety and reliability.

[0084] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A method for precision delivery of a UAV delivery device, comprising: include: ​ When the drone carries supplies for delivery, it selects and locks the delivery location based on the environmental data information received by the ground station display and control terminal (10); The drone operates at the optimal deployment altitude, which is recommended in a database based on the type of material to be deployed, and is obtained by measuring the distance to the deployment location using a laser rangefinder (3). The laser anemometer (5) detects wind speed information; The edge computing board (2) calculates the delivery path based on the distance to the delivery location, the current location coordinates of the UAV, the speed of the UAV and the wind speed information, and determines the delivery method, which includes free fall delivery, horizontal throwing delivery and diving delivery. The edge computing board (2) performs iterative calculations using a deep learning large model according to the determined delivery method, outputs a corresponding delivery trajectory planning scheme, and cooperates with the UAV to perform material delivery tasks according to the delivery trajectory planning scheme. The drone precision delivery device is installed on the drone platform (1) via a connecting frame (11), including an edge computing board (2), a laser rangefinder (3), a detachable optoelectronic pod (4), a laser anemometer (5), and a drive and locking device (6). The drive and locking device (6) locks and unlocks to mount, fix, and deploy materials; The edge computing board (2) receives data transmitted from the UAV platform (1), the edge computing board (2), the laser rangefinder (3) and the ground station display and control terminal (10), and performs data calculation, path planning and mounting command; The laser rangefinder (3) calculates the distance between the UAV and the target; The detachable optoelectronic pod (4) is remotely connected to the ground station display and control terminal (10) to perform optical tracking of the target; The laser anemometer (5) is connected to the edge computing board (2) to detect the wind speed and wind direction when the drone is deployed, and transmits the wind speed data to the edge computing board (2). If the delivery method is free fall, the delivery steps include: Receive the UAV positioning information and the data transmitted by the laser rangefinder (3); The edge computing board (2) performs path calculation based on the distance to the delivery location, the current location coordinates of the drone, the drone speed, and the wind speed information, to obtain the time required for the material to be delivered and landed, and calculates the horizontal offset distance of the material due to the wind. Control the drone to hover at the offset distance above the target, unlock the drive and locking device (6), and drop the materials downward; The method for calculating the trajectory of materials delivered in free fall includes: The vertical trajectory of the material movement is ; The trajectory of the material movement in the horizontal direction is ; in, This represents the vertical displacement. For the quality of materials, Where ρ is the air drag coefficient and ρ is the air density. The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. It is a hyperbolic cosine function. This represents the horizontal displacement. For horizontal wind speed, This refers to the windward area in the horizontal direction.

2. The drone precision delivery device according to claim 1, characterized in that, The drive and locking device (6) includes an electromechanical composite latch (7), an electric push rod (8), and a sensor (9). When the electromagnetic mechanical composite latch (7) is energized, it generates magnetic force and is attracted and aligned with the electric push rod (8) to hang and fix the materials. When the electromagnetic mechanical composite lock (7) loses power, the electric push rod (8) unlocks and the material is released. The sensor (9) is connected to the electromagnetic mechanical composite latch (7) to detect the latch status, monitor the contact pressure during mounting, and determine whether there is a loose connection.

3. The drone precision delivery device according to claim 1, characterized in that, The laser rangefinder (3) includes a transmitting unit, a receiving unit, a timing unit, and a control unit; The emitting unit generates high-energy, highly directional laser pulses; The receiving unit collects the laser signal reflected back from the target and focuses it onto the photodetector. The photodetector converts the laser signal into a laser electrical signal, which is then amplified by a preamplifier for data processing. The timing unit measures the time interval between the emission and reception of the laser pulse; The control unit is used to control the operation of the transmitting unit, the receiving unit and the timing unit, and to provide feedback on the ranging values ​​measured by the UAV platform (1).

4. The deployment method of the drone precision delivery device according to claim 1, characterized in that, If the delivery method is a flat-throw delivery, the delivery steps include: After the UAV calibrates its direction of travel and the delivery location, the edge computing board (2) performs path calculation based on the distance to the delivery location, the current coordinates of the UAV, the speed of the UAV, and the wind speed information to obtain the time required for the materials to be delivered and landed. Calculate the initial horizontal velocity of the material at the time of deployment and the horizontal distance it travels due to the influence of wind. When the drone enters a circle with the drop location as the center and the horizontal movement distance as the radius, the drive and locking device (6) unlocks, the material is thrown out and the drone maintains its speed and moves along a parabola.

5. The deployment method of the drone precision delivery device according to claim 4, characterized in that, The method for calculating the trajectory of materials delivered by projectile throwing includes: The vertical trajectory of the material movement is ; The trajectory of the material movement in the horizontal direction is ; in, This represents the vertical displacement. For the quality of materials, The air drag coefficient, air density, The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. This represents the horizontal displacement. For horizontal wind speed, The horizontal velocity at the start of the supply deployment. This refers to the windward area in the horizontal direction.

6. The deployment method of the drone precision delivery device according to claim 1, characterized in that, If the delivery method is a dive-type delivery, the delivery steps include: After locking onto the delivery location, the drone carrying the supplies flies to the area above the target. The UAV adjusts its flight attitude, tilting its nose downwards, and enters a dive attitude based on the calculated flight angle and initial velocity. When the drone reaches the optimal deployment height, the edge computing board (2) performs path calculation based on the distance to the deployment location, the current coordinates of the drone, the drone speed, and the wind speed information to obtain the time required for the materials to be deployed and landed. The drive and locking device (6) is unlocked, releasing the supplies. The drone adjusts its attitude and resumes the predetermined flight path. The supplies continue to move along a parabola to the preset drop location.

7. The deployment method of the drone precision delivery device according to claim 6, characterized in that, The calculation method for the trajectory of materials delivered in a diving manner includes: The vertical trajectory of the material movement is ; The trajectory of the material movement in the horizontal direction is ; in, This represents the vertical displacement. For the quality of materials, The air drag coefficient, air density, The vertical windward area. It is the acceleration due to gravity. The time required for supplies to go from initial deployment to their arrival. This represents the horizontal displacement. For horizontal wind speed, The horizontal velocity at the start of the supply deployment. The vertical speed at which supplies are initially deployed. This refers to the windward area in the horizontal direction.

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