CN214315460U

CN214315460U - Directional transmission device of unmanned aerial vehicle audio frequency

Info

Publication number: CN214315460U
Application number: CN202120227139.5U
Authority: CN
Inventors: 林李江
Original assignee: Guangzhou Jizhi Technology Co ltd
Current assignee: Guangzhou Jizhi Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-28
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses an unmanned aerial vehicle audio frequency directional transmission device, including cloud platform armshaft, second motor, first motor, go-between, power board, miniature transducer, main control board, camera, device main part, radiator fan, the inside of device main part is provided with main control board, power board and radiator fan, and the bottom of power board is provided with a plurality of miniature transducers and camera, and one side of first motor is provided with the go-between. The utility model discloses an unmanned aerial vehicle supplies power and radio transmission, do not increase extra weight, do not influence unmanned aerial vehicle continuation of the journey and flight safety, support to call in real time, the audio playback, TTS characters change pronunciation and support multi-national language and each place dialect, adopt the design of integration, plug-and-play, and convenient and fast, adopt electroacoustic transducer, no magnetism is revealed, do not disturb flight safety, it can adjust in real time and call the angle to have the cloud platform, adopt high directive property audio transmission, avoid the noise to disturb people, sound is propagated along fixed direction.

Description

Directional transmission device of unmanned aerial vehicle audio frequency

Technical Field

The utility model relates to a voice broadcast system field, in particular to directional transmission device of unmanned aerial vehicle audio frequency.

Background

Because unmanned aerial vehicle's flexibility can replace manpower and vehicle to go deep into various places. In scenes such as traffic dispersion, emergency command, epidemic prevention propaganda and the like, the ground personnel are required to be broadcasted by using the unmanned aerial vehicle mounted megaphone.

Be different from traditional wired megaphone, unmanned aerial vehicle megaphone comprises ground input end and airborne megaphone usually, and the centre is connected through wireless transmission module. The common unmanned aerial vehicle megaphone is mostly reformed transform with the intercom and comes, and the ground terminal is ready-made intercom, and the sky end is connected to high-power public address loudspeaker with the output of intercom.

The drawbacks of this solution are:

1. need reform transform unmanned aerial vehicle and install fixedly, can influence flight safety.

2. Ordinary public address loudspeaker adopts the outer magnet structure, has magnetism to reveal, disturbs unmanned aerial vehicle's compass, leads to positioning system to make mistakes, influences flight safety.

3. Need be from taking battery powered, increase unmanned aerial vehicle load, reduce continuation of the journey.

4. The wireless power of intercom is usually about a few watts, carries on often can disturb unmanned aerial vehicle's wireless signal on unmanned aerial vehicle, influences the remote control distance.

5. The interphone adopts a wireless transparent transmission mode, communication data are not encrypted and verified, and the interphone is easy to interfere and invade.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is overcome prior art's defect, provide an unmanned aerial vehicle audio frequency directional transmission device, possible design of adopting the integration, plug-and-play, convenient and fast.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an unmanned aerial vehicle audio frequency directional transmission device, including cloud platform armshaft, second motor, first motor, go-between, power board, miniature transducer, main control board, camera, device main part, radiator fan, the inside of device main part is provided with main control board, power board and radiator fan, the bottom of power board is provided with a plurality of miniature transducers and camera, cloud platform armshaft is located the outside of device main part all around, the one end of cloud platform armshaft is provided with the second motor, the other end of cloud platform armshaft is provided with first motor, one side of first motor is provided with the go-between, one side of go-between is provided with electrical interface, switch-on power and data communication.

As a preferred technical scheme of the utility model, miniature transducer specification is 10 x 7mm, and the frequency is 40KHZ, and voltage is 30V, and the pin is 2P, and the material is the aluminum hull.

As an optimized technical scheme of the utility model, miniature transducer and device main part electric connection, miniature transducer is connected with the output of merit amplifier board.

As an optimal technical scheme of the utility model, the main control board adopts haisi 3561, and the main control board is control module, the power amplifier board adopts LM6750T, and the power amplifier board is the power amplifier module.

As an optimized technical scheme of the utility model, the camera is the FPV camera.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses an unmanned aerial vehicle supplies power and radio transmission, do not increase extra weight, do not influence unmanned aerial vehicle continuation of the journey and flight safety, support to call in real time, the audio playback, TTS characters change the speech support multi-national language and each place dialect, adopt the design of integration, plug-and-play, convenient and fast, adopt electroacoustic transducer, no magnetism is revealed, do not disturb flight safety, it can real-time adjustment call the angle to have the cloud platform, adopt high directive property audio transmission, avoid the noise disturbing people, sound is propagated along fixed direction, gather the sound beam forming, directional through, also can be accurate in noisy environment will call the content transmission and give the object of calling, low attenuation degree, sound is obvious decay along with the distance, thereby can realize farther transmission distance, also can not cause the damage to the ears because the volume is too big when closely.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a partial structural schematic diagram of the present invention;

fig. 3 is a schematic bottom structure of the present invention;

fig. 4 is a schematic front structural view of the present invention;

fig. 5 is a schematic side view of the present invention;

in the figure: 1. a pan-tilt shaft arm; 2. a second motor; 3. a first motor; 4. a connecting ring; 5. a power amplifier board; 6. a miniature transducer; 7. a main control board; 8. a camera; 9. a device main body; 10. a heat dissipation fan.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Wherein like reference numerals refer to like parts throughout.

In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example 1

As shown in fig. 1-5, the utility model provides an unmanned aerial vehicle audio frequency directional transmission device, including cloud platform armshaft 1, second motor 2, first motor 3, go-between 4, power board 5, miniature transducer 6, main control board 7, camera 8, device main part 9, radiator fan 10, the inside of device main part 9 is provided with main control board 7, power board 5 and radiator fan 10, the bottom of power board 5 is provided with a plurality of miniature transducers 6 and camera 8, cloud platform armshaft 1 is located the outside of device main part 9 all around, cloud platform armshaft 1's one end is provided with second motor 2, cloud platform armshaft 1's the other end is provided with first motor 3, one side of first motor 3 is provided with go-between 4, one side of go-between 4 is provided with electrical interface, switch on and data communication.

Furthermore, the specification of the miniature transducer 6 is 10 × 7mm, the frequency is 40KHZ, the voltage is 30V, the pins are 2P, the material is an aluminum shell, and the sound conversion effect is better through the type of the miniature transducer 6.

The miniature transducer 6 is electrically connected with the device body 9, the miniature transducer 6 is connected with the output end of the power amplification plate 5, and the miniature transducer 6 is supplied with electric energy through the device body 9.

The main control board 7 adopts haisi 3516, the main control board 7 is a control module, the power amplification board 5 adopts LM6750T, the power amplification board 5 is a power amplification module, and the overall use efficiency is higher through the types of the main control board 7 and the power amplification board 5.

The camera 8 is a FPV camera, and the capturing effect is better by the kind of the camera 8.

Specifically, in the using process, the ultrasonic wave with the modulated audible sound component is emitted into the air through the miniature transducer 6, the high-directivity ultrasonic wave is utilized to automatically demodulate the audible sound with high directivity in the air transmission process, the sound is directionally transmitted like the light of a flashlight, the device mainly comprises a connecting ring 4 and a device main body 9, the connecting ring 4 is used for connecting a load with the unmanned aerial vehicle and comprises a fixed structure and an electrical interface, the load can be adapted to the unmanned aerial vehicles of different manufacturers and different models by replacing the adapter ring 4, the first motor 3 is installed at the bottom end of the connecting ring 4, the tripod head comprises an L-shaped rod, a second motor and a U-shaped rod, the connecting ring and the L-shaped rod are connected through the first motor, the second motor 2 is installed at the bottom end of the L-shaped rod, the U-shaped rod is installed at one end of the second motor 2, the lamp body is installed to the inboard of U type pole, device main part 9 front end is equipped with a plurality of miniature transducer 6 and FPV camera, there are main control panel 7 and power board in inside, when using, install device main part 9 to unmanned aerial vehicle through go-between 4, through ground end APP input audio frequency, transmit to control module through unmanned aerial vehicle, control module decodes into analog audio signal, modulate with ultrasonic carrier, amplify through power module, launch through miniature transducer 6, observe the object of shouting and adjust the cloud platform angle through the FPV camera, when using, in order to can see the target of shouting, the shouting is generally collocated and used together with the camera of zooming, therefore the FPV camera integrates these functions, and the utility model has the functions of shouting in real time, record uploading, MP3 audio playback, TTS text changes the pronunciation, shouting in real time is similar with traditional shouting, ground end is shouting, the method comprises the steps of playing at the sky end in real time, uploading the recording, playing at the sky end, playing in a circulating mode or playing with background music, playing MP3 audio, playing MP3 files in an SD card, playing music as the background when a megaphone is used, or playing the recording recorded by a speaker in advance, converting TTS text into voice aiming at the conditions that the megaphone environment is severe (serious noise) or the mouth sound of the megaphone is too heavy and nonstandard, inputting characters on the APP, converting the characters into standard voice and playing, and supporting languages of all places (common speech, Guangdong language, Henan language) and all countries (English, Japanese, French and the like).

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An unmanned aerial vehicle audio directional transmission device comprises a tripod head shaft arm (1), a second motor (2), a first motor (3), a connecting ring (4), a power amplifier plate (5), a micro energy converter (6), a main control plate (7), a camera (8), a device main body (9) and a cooling fan (10), and is characterized in that the main control plate (7), the power amplifier plate (5) and the cooling fan (10) are arranged inside the device main body (9), the bottom of the power amplifier plate (5) is provided with a plurality of micro energy converters (6) and cameras (8), the tripod head shaft arm (1) is positioned around the outer side of the device main body (9), one end of the shaft arm (1) is provided with the second motor (2), the other end of the tripod head shaft arm (1) is provided with the first motor (3), one side of the first motor (3) is provided with the connecting ring (4), one side of the connecting ring (4) is provided with an electrical interface, a power supply and data communication.

2. The device of claim 1, wherein the miniature transducer (6) has a size of 10 x 7mm, a frequency of 40KHZ, a voltage of 30V, a pin of 2P, and is made of an aluminum case.

3. The audio directional transmission device for unmanned aerial vehicle according to claim 1, wherein the miniature transducer (6) is electrically connected to the device body (9), and the miniature transducer (6) is connected to the output end of the power amplifier board (5).

4. The unmanned aerial vehicle audio directional transmission device of claim 1, wherein the main control board (7) adopts Haisi 3516, the main control board (7) is a control module, the power amplifier board (5) adopts LM6750T, and the power amplifier board (5) is a power amplifier module.

5. A drone audio directional transmission device according to claim 1, characterised in that the camera (8) is an FPV camera.