Unmanned aerial vehicle megaphone capable of rapidly adjusting megaphone direction

Abstract

The utility model relates to the technical field of unmanned aerial vehicle application, in particular to an unmanned aerial vehicle megaphone capable of rapidly adjusting a megaphone direction. According to the megaphone, the plurality of loudspeakers facing different directions are arranged in the megaphone shell, when the megaphone is used, the sound playing direction of the megaphone is manually adjusted and selected through the remote controller or the direction of a specific target is obtained through the 360-degree panoramic camera arranged at the tail part of the megaphone, and the megaphone is controlled through internal logic of the megaphone; the loudspeaker facing the shout target is controlled by the audio control module to produce sound, so that rapid directional shouting can be realized, and the loudspeaker in the corresponding direction can be automatically selected along with the target to shout. The directional shouting is realized by controlling the unmanned aerial vehicle to rotate or driving a megaphone to rotate through a mechanical structure; according to the structure of the utility model, directional speaking can be realized more quickly, and the loudspeaker playing sound corresponding to the target can be adjusted quickly and accurately along with the change of the target orientation in real time.

Description

Technical Field

[0001] The present application relates to the field of drone application technology, and in particular to a drone loudspeaker capable of quickly adjusting the direction of a call. Background Art

[0002] Drones are unmanned aircraft controlled by radio remote control and self-contained programmable controls. They are used in aerial photography, agriculture, plant protection, micro selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspections, disaster relief, film and television production, and advertising. In some special events requiring long-distance communication, loudspeakers can also be very effective. When directional communication is needed, the loudspeaker's angle must be adjusted to clearly convey the message. Currently, most loudspeakers are directly fixed to the drone, requiring the drone's mid-air angle to be adjusted for directional communication, significantly increasing the difficulty of operating the drone. Using a drive to adjust the loudspeaker's angle also takes time, reducing efficiency in critical situations and potentially causing property or even personal damage due to the inability to clearly convey the message. Utility Model Content

[0003] The utility model aims to solve the problem of slow angle change of the above-mentioned loudspeaker, thereby providing a drone loudspeaker that can quickly adjust the direction of shouting.

[0004] The utility model solves the above problems by adopting the following technical solutions:

[0005] A drone loudspeaker with a quick adjustment of the direction of a call is provided on the drone and comprises a wireless communication module, a video acquisition module and an audio control module. The audio control module is connected to a ground control device via the wireless communication module, and the video acquisition module is used to select a specific target that needs to automatically follow and play sound. The loudspeaker also comprises a loudspeaker housing, in which a plurality of loudspeakers facing in different directions are provided, each loudspeaker being connected to the audio control module. The video acquisition module is a 360-degree panoramic camera installed at the rear bottom of the loudspeaker housing. The 360-degree panoramic camera is used to collect real-time video of the area below the drone to obtain the specific target position that needs to be called. The loudspeaker housing is detachably connected to the drone.

[0006] Compared with the prior art, the present invention adopting the above technical solution has the following beneficial effects:

[0007] This new system incorporates multiple speakers oriented in different directions within the megaphone housing. During use, the drone's video capture module identifies the location of a specific target being addressed. The drone's internal logic controls the audio control module, directing the speaker toward the target, thereby enabling rapid, directional communication. Compared to existing methods that achieve directional communication by rotating the drone or mechanically driving the megaphone, this new system achieves directional communication much more quickly. A 360-degree panoramic camera at the rear of the megaphone captures real-time video of the area below the drone, providing a basis for selecting the direction in which to play sound following a specific target. Regardless of the relative position of the drone and the target, the drone's internal logic controls the speaker corresponding to the target's orientation to produce sound.

[0008] As a preferred embodiment, a further technical solution of the present invention is:

[0009] A through hole is provided in the middle of the loudspeaker shell, and the visual obstacle avoidance module at the bottom of the drone scans the area below the drone through the through hole. The through hole provides a scanning space for the visual obstacle avoidance module, making it suitable for most existing drones with visual obstacle avoidance function.

[0010] The megaphone housing is a quadrangular pyramid. When the drone is parallel to the ground, each sidewall of the pyramid forms an acute angle with the ground. Each of the four sidewalls is equipped with four speakers facing diagonally downward, and the bottom of the sidewall is equipped with a speaker facing downward. This structure allows the speakers on the four sides to face diagonally downward, better aligning with the person being addressed on the ground below the drone. The bottom speaker can directly face the person being addressed directly below the drone.

[0011] The four outer side walls and the bottom wall of the megaphone housing are all provided with through holes. By providing the through holes, the sound waves of the loudspeaker in the megaphone housing can spread outward through the through holes.

[0012] The loudspeaker housing is fixed with a hanging ear, in which a Velcro is inserted, and the loudspeaker housing is fixed to the drone via the Velcro. The loudspeaker housing can be detachably and quickly installed on the drone via the Velcro.

[0013] A sponge pad is attached to the side of the loudspeaker housing closest to the drone. This pad prevents hard contact and damage to the loudspeaker housing or drone when mounted on the drone, while also increasing friction at the contact point. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a bottom-view stereoscopic diagram of a megaphone installed on a drone according to an embodiment of the present application;

[0015] Figure 2This is a top-view stereoscopic diagram of a megaphone installed on a drone according to an embodiment of the present application;

[0016] Figure 3 This is a top perspective schematic diagram of the loudspeaker housing structure of an embodiment of the present application;

[0017] Figure 4 It is a bottom-view stereoscopic schematic diagram of the loudspeaker housing structure of an embodiment of the present application.

[0018] In the figure: 1. Drone; 2. Megaphone housing; 21. Through hole; 22. Lifting ear; 23. Through hole; 24. 360° panoramic camera; 3. Velcro; 4. Sponge pad; 5. Visual obstacle avoidance module. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0020] Reference Figure 1-4, the embodiment of the present application discloses a loudspeaker for a drone 1 that can quickly adjust the direction of shouting, which is arranged on the drone 1 and includes a wireless communication module, a video acquisition module and an audio control module. The audio control module is connected to the ground control equipment through the wireless communication module. The video acquisition module is used to select a specific target that needs to automatically follow and play sound. Preferably, the video acquisition module is a 360° panoramic camera, which is installed at the bottom of the rear side of the loudspeaker shell. The 360° panoramic camera collects video of the area below the drone in real time to obtain the direction of the specific target that needs to be shouted; it also includes a loudspeaker shell 2, in which a plurality of loudspeakers facing different directions are arranged. Preferably, the loudspeaker shell 2 is a quadrangular pyramid structure, the lower bottom surface of the quadrangular pyramid with a larger area is the top surface of the loudspeaker shell 2, and the lower bottom surface of the quadrangular pyramid with a smaller area is the bottom surface of the loudspeaker shell 2. The top surface of the loudspeaker shell 2 is used to contact the bottom of the drone 1; when the drone 1 is parallel to the ground, the side walls of the quadrangular pyramid form an acute angle with the ground, and the middle of the loudspeaker shell 2 is opened There is a through hole 23 running through the top and bottom surfaces, the horizontal cross-section of the through hole 23 is a rectangle, the four side walls of the loudspeaker housing 2 are through cavities, and speakers are fixed in the four cavities of the loudspeaker housing 2. The four speakers are respectively facing the four outer sides and obliquely downwards of the drone 1. The bottom of one of the cavities of the loudspeaker housing 2 is fixed with a speaker facing directly below the drone 1. The four outer side walls and the bottom wall of the loudspeaker housing 2 are provided with through holes 21 running through the cavity and the outside of the loudspeaker housing 2, so that the sound waves of the speakers in the loudspeaker housing 2 can The sound diffuses outward through the through-hole 21; the four oblique speakers are convenient for better facing the person being addressed on the ground below the drone 1, and the downward speakers can directly face the person being addressed directly below the drone 1. Each speaker is connected to the audio control module. During installation, the through-hole 23 of the loudspeaker shell 2 is aligned with the visual obstacle avoidance module 5 at the bottom of the drone 1, so that the visual obstacle avoidance module at the bottom of the drone 1 can scan the area below the drone 1 through the through-hole 23, thereby realizing visual obstacle avoidance of the drone 1; the loudspeaker shell 2 is detachably connected to the drone 1.

[0021] In this embodiment, two ears 22 are fixed to the top of two opposite side walls of the loudspeaker housing 2, and the two ears 22 on both sides correspond to each other. Velcro 3 is inserted into the two corresponding ears 22 on both sides, and the loudspeaker housing 2 is fixed to the drone 1 through the Velcro 3. The Velcro 3 allows the loudspeaker housing 2 to be detachably and quickly installed on the drone 1.

[0022] In this embodiment, a sponge pad 4 is fixed to the top surface of the loudspeaker housing 2. The sponge pad 4 is made of EVA foam and is 3mm thick. The sponge pad 4 has the same size and shape as the top surface of the loudspeaker housing 2. When the loudspeaker housing 2 is installed on the drone 1, the sponge pad 4 prevents long-term hard contact between the loudspeaker housing 2 and the drone 1, which could cause damage to the loudspeaker housing 2 or the drone 1. It also increases friction at the contact point, making the installation of the loudspeaker housing 2 more stable.

[0023] The present invention provides a plurality of loudspeakers with different directions in the loudspeaker housing 2. When in use, the position of the specific target to be addressed is identified by the video acquisition module of the drone, and the internal logic control of the drone 1 is used to control the loudspeaker to sound toward the person to be addressed through the audio control module, thereby realizing fast directional shouting. Compared with the existing method of realizing directional shouting by controlling the rotation of the drone 1 or driving the loudspeaker to rotate through a mechanical structure, the structure of the present invention can realize directional shouting more quickly; a through hole 23 opened in the middle of the loudspeaker housing 2 provides a scanning space for the visual obstacle avoidance module, so that it is suitable for most existing drones 1 with visual obstacle avoidance function; a 360° panoramic camera at the tail of the loudspeaker collects real-time video of the area below the drone, providing a basis for selecting the direction of playing sound following a specific target.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made using the contents of the present invention specification and its drawings are included in the scope of the present invention.

Claims

1. A drone megaphone with rapidly adjustable direction of broadcasting, mounted on a drone, comprises a wireless communication module, a video acquisition module, and an audio control module. The audio control module is connected to ground control equipment via the wireless communication module, and the video acquisition module is used to select specific targets to which audio is automatically played. It is characterized by: It also includes a loudspeaker shell, which is equipped with multiple speakers facing different directions, and each speaker is connected to an audio control module; the audio control module is used to control the speaker broadcasting towards a specific target according to the specific target selected by the video acquisition module; the loudspeaker shell is detachably connected to the drone.

2. The drone megaphone with rapid adjustment of the direction of the announcement according to claim 1 is characterized by: A through hole is provided in the middle of the loudspeaker housing, and the visual obstacle avoidance module at the bottom of the drone scans the area below the drone through the through hole.

3. The drone megaphone with rapid adjustment of the direction of the announcement according to claim 1 is characterized by: The loudspeaker shell is a quadrangular pyramid structure. When the drone is parallel to the ground, each side wall of the quadrangular pyramid forms an acute angle with the ground. Four speakers facing obliquely downward are provided in the four side walls of the quadrangular pyramid, and a speaker facing downward is provided at the bottom of the side wall of the quadrangular pyramid.

4. The drone megaphone with rapid adjustment of the direction of the announcement according to claim 1 is characterized by: The four outer side walls and the bottom wall of the loudspeaker housing are all provided with through holes.

5. The drone megaphone with rapid adjustment of the direction of the announcement according to claim 1 is characterized by: A hanging ear is fixed on the loudspeaker shell, and a Velcro is passed through the hanging ear, and the loudspeaker shell is fixed on the drone through the Velcro.

6. The drone megaphone with rapid adjustment of the direction of the announcement according to claim 1 is characterized by: A sponge pad is fixed on the side of the loudspeaker housing close to the drone.

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