CN218634248U

CN218634248U - Hanging-neck type UHF wireless monitoring earphone

Info

Publication number: CN218634248U
Application number: CN202222414621.7U
Authority: CN
Inventors: 李国�
Original assignee: Guangzhou Maiwang Electronic Co ltd
Current assignee: Guangzhou Maiwang Electronic Co ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-14
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a hang neck formula UHF wireless monitoring earphone, receive the module including earphone transmission module, earphone transmission module includes charging circuit, the charging circuit output is connected with the power, the power is electric connection respectively has audio input, AD conversion module, carrier wave oscillation modulation circuit and RF amplification output module, antenna matching, adopts the UHF frequency channel through hanging neck formula UHF wireless monitoring earphone, the multi-frequency point is adjusted, can change the frequency of transmission and receipt at will, can carry out a transmission and receive more, and can divide into groups, the multiunit uses, need not pair, directly adjust the transmission and receive just can wireless transmission high-fidelity sound at same frequency, live, monitor, the meeting, train, watch fields such as TV at night and play green's effect.

Description

Hanging-neck type UHF wireless monitoring earphone

Technical Field

The utility model belongs to the technical field of the earphone, concretely relates to hang neck formula UHF wireless monitoring earphone.

Background

At present, a 2.4G,5.8G or wired monitoring earphone is made by other people, the use is very inconvenient, so that a wireless monitoring earphone of UHF (500-950 MHZ) of non-delay stereo HIFI and a monitoring earphone of lithium battery charging and transmitting are developed by the people, and the use is more convenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hang wireless monitoring headset of neck formula UHF to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hanging neck type UHF wireless monitoring earphone comprises an earphone transmitting module and an earphone receiving module, wherein the earphone transmitting module comprises a charging circuit, the output end of the charging circuit is connected with a power supply, the power supply is respectively and electrically connected with an audio input, an A/D conversion module, a carrier oscillation modulation circuit, an RF amplification output module and an antenna matching, the functional operation is electrically connected with an MUC control module, and the MUC control module is electrically connected with a state display screen;

the earphone receiving module comprises a charging circuit A, a power supply A, a LAN receiving sensitivity improving module, a frequency selecting receiving module, a demodulation DSP chip, a D/A conversion module A, a power amplification module, a functional operation A, an MCU control module A and a state display screen A, wherein the charging circuit A is electrically connected with the power supply A, the power supply A is respectively electrically connected with the LAN receiving sensitivity improving module, the frequency selecting receiving module, the demodulation DSP chip, the D/A conversion module A and the power amplification module, the functional operation A is electrically connected with the MCU control module A, and the MCU control module A is electrically connected with the state display screen A

The audio input is electrically connected with the A/D conversion module, the A/D conversion module is electrically connected with the carrier oscillation modulation circuit, the carrier oscillation modulation circuit is electrically connected with the RF amplification output module, and the RF amplification output module is electrically connected with the antenna in a matching manner.

The MUC control module is electrically connected with the audio input, the A/D conversion module, the carrier oscillation modulation circuit, the RF amplification output module and the antenna in a matching way, so that the input audio signal can be converted, modulated and amplified and then the audio signal is sent out by the antenna.

The LAN receiving sensitivity improving module, the frequency selecting receiving module, the demodulation DSP chip, the D/A conversion module A and the power amplification module are electrically connected and are electrically connected with the MCU control module A, and the power amplifying module is used for amplifying the signal and then pushing the earphone transmitting module and the earphone receiving module to make a sound.

The utility model discloses a technological effect and advantage: the hanging neck type UHF wireless monitoring earphone inputs audio frequency through live sound cards, computers, mobile phones, televisions and the like, the audio frequency is converted through an A/D conversion module and then input into a carrier oscillation modulation circuit for adjustment, the adjusted audio frequency is input into an RF amplification output module for signal amplification, the amplified audio frequency signal is sent out through an antenna through a circuit matched with the antenna, the audio frequency signal is sent out after being processed by an earphone transmitting module and then received through an antenna, the received audio frequency signal is referred to a required use value through an LAN receiving sensitivity improving module, a required audio frequency signal frequency is selected by a frequency selection receiving module, a digital audio signal is decoded by a demodulation circuit in a set demodulation DSP chip, the digital audio signal is modified by a DSP and then is restored by a set D/A conversion module A to simulate a stereo audio signal, and finally the earphone transmitting module and the earphone receiving module are pushed to send out sound after being amplified by a power amplification module.

The hanging-neck type UHF wireless monitoring earphone has the function of resisting interference of UHF, meanwhile, the earphone is normally used by automatically searching blank frequency, the circuit is directly filtered and closed at the time of each MV through the electronic noise switch, the service life of a battery can be prolonged by adopting a quick charging and trickle charging mode during charging through the charging and discharging time of the earphone, meanwhile, the normal discharging can be carried out for 5 hours, and the tone quality of the hanging-neck type UHF wireless monitoring earphone has the effects of three-dimensional surrounding, wide dynamic range, 44K, clean sound, no noise and pure thickness.

Through hanging neck formula UHF wireless monitoring earphone and adopting the UHF frequency channel, the frequency of multi-frequency point regulation, can change transmission and receipt at will, can carry out a transmission and receive more to can divide into groups, multiunit use, need not pair, directly adjust transmission and receive just can wireless transmission high-fidelity sound at same frequency, in the live broadcast, monitor, meeting, training, watch fields such as TV night and play green's effect.

Drawings

Fig. 1 is a circuit block diagram of the earphone transmitting module of the present invention;

fig. 2 is a circuit block diagram of the earphone receiving module of the present invention.

In the figure: 1. the earphone transmitting module; 2. an earphone receiving module; 3. a charging circuit; 4. a power source; 5. inputting audio; 6. an A/D conversion module; 7. a carrier oscillation modulation circuit; 8. an RF amplification output module; 9. matching the antennas; 10. function operation; 11. a MUC control module; 12. a status display screen; 13. a charging circuit A; 14. a power supply A; 15. LAN reception sensitivity boost module; 16. a frequency-selective receiving module; 17. demodulating the DSP chip; 18. a D/A conversion module A; 19. a power amplification module; 20. a functional operation A; 21. the MCU control module A; 22. and a status display screen A.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a hang wireless monitoring earphone of neck formula UHF, including earphone emission module 1, earphone receiving module 2, earphone emission module 1 includes charging circuit 3, the realization carries out the effect that the protectiveness charged to this earphone, charging circuit 3 output is connected with power 4, the realization supplies power to earphone emission module 1's built-in module component, power 4 electric connection has audio input 5 respectively, AD conversion module 6, carrier oscillation modulation circuit 7 and RF amplify output module 8, antenna matching 9, 10 electric connection of functional operation has

MUC control module

11, and 11 electric connection of MUC control module has status display article screen 12, the realization is to audio signal's processing.

The audio input 5 is electrically connected with the A/D conversion module 6, can receive and transmit the received audio signals to the A/D conversion module 6 for conversion, the A/D conversion module 6 is electrically connected with the carrier oscillation modulation circuit 7, can perform oscillation modulation on the converted audio signals, the carrier oscillation modulation circuit 7 is electrically connected with the RF amplification output module 8, can amplify the audio signals, the RF amplification output module 8 is electrically connected with the antenna matching 9, and wirelessly transmits the audio signals after amplification, the MUC control module 11 is electrically connected with the audio input 5, the A/D conversion module 6, the carrier oscillation modulation circuit 7, the RF amplification output module 8 and the antenna matching 9, so that amplification processing of the audio signals is realized;

the earphone receiving module 2 comprises a charging circuit A13, a power supply A14, a LAN receiving sensitivity improving module 15, a frequency selection receiving module 16, a demodulation DSP chip 17, a D/A conversion module A18, a power amplification module 19, a function operation A20, an MCU control module A21 and a state display screen A22, wherein the charging circuit A13 is electrically connected with the power supply A14 to realize charging of the power supply A14, the power supply A14 is electrically connected with the LAN receiving sensitivity improving module 15, the frequency selection receiving module 16, the demodulation DSP chip 17, the D/A conversion module A18 and the power amplification module 19 respectively, and received audio amplification signals are received and processed.

The functional operation A20 is electrically connected with the MCU control module A21 to realize the operation control of the earphone, the MCU control module A21 is electrically connected with the state display screen A22, the LAN receiving sensitivity improving module 15, the frequency selecting receiving module 16, the demodulation DSP chip 17, the D/A conversion module A18 and the power amplification module 19 are electrically connected with each other and electrically connected with the MCU control module A21, and the audio signals can be converted into the emitted audio through the power amplification module 19 after being processed.

Specifically, during use, audio signals of a live sound card, a computer, a mobile phone, a television and the like are input to an audio input 5, audio is converted by an a/D conversion module 6 and then input to a carrier oscillation modulation circuit 7 for adjustment, then the adjusted audio signals are input to an RF amplification output module 8 for signal amplification, the amplified audio signals are sent out by an antenna through a circuit of an antenna matching 9, the audio signals are sent out after being processed by an earphone transmitting module 1 and then received through an antenna, then the received audio signals are referred to a required use value through an LAN receiving sensitivity improving module 15, then a required audio signal frequency is selected by a frequency selecting receiving module 16, a digital audio signal is decoded by a demodulation circuit in a set demodulation DSP chip 17, the digital audio signal is modified by a set D/a conversion module a18 to restore an analog stereo audio signal, and finally the audio signals are amplified by a power amplification module 19 to push the earphone transmitting module 1 and the earphone receiving module 2 to send out sound.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a hang wireless monitoring earphone of neck formula UHF, includes earphone emission module (1), earphone receiving module (2), its characterized in that: the earphone transmitting module (1) comprises a charging circuit (3) and a functional operation module (10), wherein the output end of the charging circuit (3) is connected with a power supply (4), the power supply (4) is respectively and electrically connected with an audio input (5), an A/D conversion module (6), a carrier oscillation modulation circuit (7), an RF amplification output module (8) and an antenna matching module (9), the functional operation module (10) is electrically connected with an MUC control module (11), and the MUC control module (11) is electrically connected with a state display screen (12);

the earphone receiving module (2) comprises a charging circuit A (13), a power supply A (14), a LAN receiving sensitivity improving module (15), a frequency selection receiving module (16), a demodulation DSP chip (17), a D/A conversion module A (18), a power amplification module (19), a function operation A (20), an MCU control module A (21) and a state display screen A (22), wherein the charging circuit A (13) is electrically connected with the power supply A (14), the power supply A (14) is respectively electrically connected with the LAN receiving sensitivity improving module (15), the frequency selection receiving module (16), the demodulation DSP chip (17), the D/A conversion module A (18) and the power amplification module (19), the function operation A (20) is electrically connected with the MCU control module A (21), and the MCU control module A (21) is electrically connected with the state display screen A (22);

the earphone transmitting module (1) and the earphone receiving module (2) adopt the design of UHF frequency band.

2. The hanging-neck UHF wireless monitoring earphone according to claim 1, characterized in that: the audio input (5) is electrically connected with the A/D conversion module (6), the A/D conversion module (6) is electrically connected with the carrier oscillation modulation circuit (7), the carrier oscillation modulation circuit (7) is electrically connected with the RF amplification output module (8), and the RF amplification output module (8) is electrically connected with the antenna matching circuit (9).

3. The hanging-neck UHF wireless monitoring earphone according to claim 1, characterized in that: the MUC control module (11) is electrically connected with the audio input (5), the A/D conversion module (6), the carrier oscillation modulation circuit (7), the RF amplification output module (8) and the antenna matching (9).

4. The hanging-neck UHF wireless monitoring earphone according to claim 1, characterized in that: the LAN receiving sensitivity improving module (15), the frequency selecting receiving module (16), the demodulation DSP chip (17), the D/A conversion module A (18) and the power amplifying module (19) are electrically connected and are electrically connected with the MCU control module A (21).