CN213879839U

CN213879839U - District wireless partition broadcasting system

Info

Publication number: CN213879839U
Application number: CN202023253519.0U
Authority: CN
Inventors: 江波
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-08-03
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a wireless subregion broadcasting system in district, including a transmitter and a plurality of audio amplifier, wherein the transmitter includes transmitting terminal MCU unit, emission module and transmitting terminal radio frequency, the transmitting terminal radio frequency passes through the filtering unit and connects transmitting antenna, transmitting terminal MCU unit still is connected with the function display screen respectively, the control module is awakened to pronunciation, function button control panel, the two-way module of talkbacking of audio frequency and video, frequency switching pushes away the twist switch, the subregion switches and pushes away the twist switch, the camera, the USB interface, microphone and wireless receiving module, wherein the audio amplifier includes receiving terminal MCU unit, receiving module, receiving terminal radio frequency, receiving antenna, connect left channel speaker and right channel speaker respectively through audio power amplifier module; the wireless signal is transmitted and received through a transmitting antenna on the transmitter and a receiving antenna on the sound box, so that the ground management buried lines and the high-altitude overhead lines in the cell are replaced.

Description

District wireless partition broadcasting system

Technical Field

The utility model belongs to audio playback device, in particular to wireless subregion broadcasting system in district.

Background

The broadcasting system has an important function in cell management, and can be used for playing related property information and emergency early warning prompt information such as music or weather forecast.

Due to the particularity of community management, the sound boxes of the community broadcasting system are required to be reasonably and uniformly arranged, the volume is appropriate at ordinary times, normal life of people is not affected, and when an emergency occurs, the sound box can generate sound with the maximum power, so that early warning prompt information or alarm sound can be heard in time at each corner, and people can be evacuated in time.

The existing community broadcasting system is mainly based on wired connection, a plurality of sound boxes serving as receiving terminals are arranged in a mode of managing buried lines or overhead lines during community construction, the sound boxes are connected with a transmitter for transmitting audio signals through electric wires, partial sound box faults and electric wires are difficult to avoid in later use, rewiring is needed, the managed buried lines need to be excavated, the overhead lines influence attractiveness, and great inconvenience is brought to construction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect among the prior art, provide a but remote management's district wireless broadcast system based on radio technology.

The utility model provides a technical scheme that technical problem adopted is: a district wireless subarea broadcasting system comprises a transmitter for transmitting audio signals and a plurality of sound boxes serving as wireless receiving terminals; the transmitter comprises a transmitting end MCU unit, a transmitting module connected with the transmitting end MCU unit and a transmitting end radio frequency connected with the transmitting module, wherein the transmitting end radio frequency is connected with a transmitting antenna through a filtering unit; the transmitting end MCU unit is also respectively connected with a functional display screen, a voice awakening control module, a functional key control panel, an audio and video bidirectional talkback module, a frequency switching push-turn switch, a partition switching push-turn switch, a camera, a USB interface, a microphone and a wireless module; the loudspeaker box comprises a receiving end MCU unit, a receiving module connected with the receiving end MCU unit and a receiving end radio frequency connected with the receiving module, wherein the receiving end radio frequency is connected with a receiving antenna, and the receiving module is respectively connected with a left sound channel loudspeaker and a right sound channel loudspeaker through an audio power amplifier module.

In the cell wireless partition broadcasting system, the transmitting end MCU unit and the receiving end MCU unit both use a single chip microcomputer.

A transmitting module of the cell wireless partition broadcasting system adopts a KT0646 chip.

A receiving module of the cell wireless partition broadcasting system adopts a KT0656 chip.

The wireless module of the community wireless partition broadcasting system is a Bluetooth module and/or a WIFI module.

In the cell wireless partition broadcasting system, the transmitting end MCU unit is also connected with a TF card interface.

A wireless subregion broadcasting system in district, all be provided with battery and emergency light on its transmitter and the audio amplifier.

The utility model has the advantages that: the utility model discloses a transmitting antenna on the transmitter and receiving antenna on the audio amplifier realize wireless signal's transmission and receipt to the pipe buried line and the overhead line in replacing the district, the transmitting signal of transmitter dabs the button through the screen and modifies, the transmitter is handled the back to multiple audio frequency source (for example bluetooth, the TF card, the USB flash disk, WIFI, microphone etc.), converts into the simulation and controls the sound channel and send into emission module and modulate to high frequency signal, enlarge through radio frequency power again, send out after the filtering doubling of frequency.

The utility model discloses an operation mode of transmitter and audio amplifier separation has satisfied long-range real-time broadcasting's needs, has with low costs, easily operates, advantages such as installation and debugging convenience.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

fig. 3 is a circuit structure diagram of the transmitting module of the present invention;

fig. 4 is a circuit structure diagram of the sound box of the present invention;

fig. 5 is a circuit structure diagram of the receiving module of the present invention.

The figures are numbered: 10-transmitting end MCU unit, 11-transmitting module, 12-transmitting end radio frequency, 13-filtering unit, 14-function display screen, 15-voice awakening control module, 16-function key control panel, 17-audio and video bidirectional talkback module, 18-frequency switching push-turn switch, 19-partition switching push-turn switch, 20-transmitting antenna, 21-camera, 22-USB interface, 23-microphone, 24-TF card interface, 25-Bluetooth module, 26-WIFI module, 27-receiving antenna, 28-receiving end radio frequency, 29-receiving module, 30-receiving end MCU unit, 31-audio power amplifier module, 32-left channel speaker, 33-right channel speaker.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples, which are as follows.

Referring to fig. 1, the community wireless partition broadcasting system disclosed by the invention comprises a transmitter for transmitting audio signals and N sound boxes serving as wireless receiving terminals, and can be independently opened to play emergency broadcasting in a certain area through frequency conversion partition transmitters and 1-frequency point N partition (all areas are opened). The transmitting and receiving frequency can be changed, each frequency point can be divided into a plurality of areas, the whole-area audio-video intercom or broadcast playing can be realized, a certain area can be independent, the frequency point and the subarea point can be changed at any time for broadcasting, and the volume adjustment can be independently controlled.

Referring to fig. 2, the transmitter includes a transmitting end MCU unit 10, a transmitting module 11 connected to the transmitting end MCU unit 10, and a transmitting end rf 12 connected to the transmitting module 11, where the transmitting end rf 12 is connected to a transmitting antenna 20 through a filtering unit 13; the transmitting end MCU unit 10 is also respectively connected with a function display screen 14, a voice awakening control module 15, a function key control panel 16, an audio and video bidirectional talkback module 17, a frequency switching push-button switch 18, a partition switching push-button switch 19, a camera 21, a USB interface 22, a microphone 23, a TF card interface 24 and a wireless transmitting/receiving module, wherein the wireless transmitting/receiving module is a Bluetooth module 25 and/or a WIFI module 26.

Referring to fig. 3, the transmitting module 11 adopts a KT0646 chip.

The utility model discloses a transmission and the receipt of transmitter and audio amplifier are through the wireless broadcast form, consequently, the transmitter on still be provided with battery and emergency light, can emergency lighting when not having the electricity, also can the broadcast of emergency simultaneously. Transmitter and receiver can all switch over through infrared remote control and dabbing button or gear switch frequency point and digital subregion, can play by pronunciation awaken up, and speech control broadcast can two-way video pronunciation talkback, can WIFI combined communication, can divide a plurality of frequency channels frequency point, and every frequency channel frequency point can divide a plurality of subregions simultaneously for example:

1. frequency point 1 can be divided into: and N areas such as area 1, area 2, area 3 and the like are broadcast.

2. Frequency point 2 can be divided into: and N areas such as area 1, area 2, area 3 and the like are broadcast.

Referring to fig. 4, the sound box includes a receiving end MCU unit 30, a receiving module 29 connected to the receiving end MCU unit 30, and a receiving end radio frequency 28 connected to the receiving module 29, the receiving end radio frequency 28 is connected to a receiving antenna 27, and the receiving module 29 is connected to a left channel speaker 32 and a right channel speaker 33 through an audio power amplifier module 31.

Referring to fig. 5, the receiving module 29 adopts a KT0656 chip. The loudspeaker box is also provided with a battery and an emergency lamp, so that emergency illumination can be realized when no electricity exists, the built-in battery can be charged and works at the same time in the normal working process, and emergency broadcasting can be prevented when power is cut off.

The loudspeaker box is also provided with an independent audio-video bidirectional talkback, can be played at regular time, can realize variable frequency and subarea broadcasting through keys and touch or hardware push-button switches at will, can realize frequency switching, subarea switching, regular playing and volume control through push-button switches or light touch keys and touch, and can realize emergency broadcasting and illumination through a built-in battery. The sound box serving as the receiving end can independently control the volume, and therefore the partition broadcasting application is conveniently realized.

The utility model discloses a singlechip is all used to transmitting terminal MCU unit 10 and receiving terminal MCU unit 30, realize screen display through single chip microcomputer operating system, the button, functions such as touch, the transmitting frequency of transmitter can be modified through the screen or dabbing the button, the transmitter is multiple audio frequency source (for example bluetooth, the TF card, the USB flash disk, WIFI, microphone etc.), handle the back through the singlechip, convert into the simulation and control the sound channel and send into the transmitting chip and modulate high frequency signal, pass through balun again, radio frequency power enlargies, send out after the filtering doubling of frequency.

The utility model discloses an audio amplifier not only has the basic function of ordinary audio amplifier, receives different frequency points, can receive different digital partition signal simultaneously, can avoid causing the interference to near audio amplifier, sends into receiving chip behind the balun after the audio amplifier receives the signal, and this chip mediates radio frequency signal for audio frequency left and right sides sound channel, sends into loudspeaker after audio power amplifier again. More than two groups of toggle gear switches or infrared remote control heads are arranged in the sound box, voice awakening playing and voice control playing are achieved, frequency point conversion and digital partition conversion are achieved, and finally multiple partition broadcasting is achieved.

The receiver is powered on or powered off at the moment, and when no signal is transmitted or the interference of a false station occurs, the receiver cannot generate the explosion sound. The implementation is realized through the internal chip of the transmitting and receiving. The transmitter simultaneously loads the pilot signal while modulating the Auidio analog FM, thereby realizing the simultaneous transmission of the pilot signal and the sound. The receiver will demodulate the demodulated audio mute when the pilot is not identified.

The utility model discloses a transmitter can be broadcast regularly at will, and transmitter and receiver can be manual frequency point of changing and digit subregion at will, and local signal interference is avoided in the prevention that can be convenient.

The utility model can reduce the equipment and installation cost, and has high system reliability and simple maintenance; the broadcasting is carried out in any convenient place far away from a broadcasting room by the sub-control transmitter and the loudspeaker box, the control range is wide, and the operation is simple and convenient; the MP3 song in the U disk can be directly played from the U disk socket on the machine when the song is broadcasted, the requirement of normal broadcasting is completely met, in addition, automatic control can be realized, and the machine is unattended.

The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be applied, and it will be apparent to those skilled in the art that a plurality of modifications and improvements may be made without departing from the inventive concept of the present invention, and all of these modifications and improvements fall within the protection scope of the present invention.

Claims

1. A cellular radio sectorized broadcast system, characterized by: comprises a transmitter for transmitting audio signals and a plurality of sound boxes as wireless receiving terminals; the transmitter comprises a transmitting end MCU unit (10), a transmitting module (11) connected with the transmitting end MCU unit (10) and a transmitting end radio frequency (12) connected with the transmitting module (11), wherein the transmitting end radio frequency (12) is connected with a transmitting antenna (20) through a filtering unit (13); the transmitting end MCU unit (10) is also respectively connected with a functional display screen (14), a voice awakening control module (15), a functional key control panel (16), an audio and video bidirectional talkback module (17), a frequency switching push-button switch (18), a partition switching push-button switch (19), a camera (21), a USB interface (22), a microphone (23) and a wireless module; the loudspeaker box comprises a receiving end MCU unit (30), a receiving module (29) connected with the receiving end MCU unit (30) and a receiving end radio frequency (28) connected with the receiving module (29), wherein the receiving end radio frequency (28) is connected with a receiving antenna (27), and the receiving module (29) is respectively connected with a left sound channel loudspeaker (32) and a right sound channel loudspeaker (33) through an audio power amplifier module (31).

2. The cell wireless partition broadcasting system of claim 1, wherein the transmitting end MCU unit (10) and the receiving end MCU unit (30) both use a single chip microcomputer.

3. The cellular wireless subarea broadcasting system according to claim 2, wherein said transmitting module (11) uses KT0646 chip.

4. The cellular wireless partition broadcasting system according to claim 2, wherein the receiving module (29) adopts a KT0656 chip.

5. The cellular radio-based sectorized broadcast system according to claim 1, 2, 3 or 4, wherein said radio module is a Bluetooth module (25) and/or a WIFI module (26).

6. The cellular radio-based sectorized broadcasting system according to claim 1, 2, 3 or 4, wherein said transmitting end MCU unit (10) is further connected with TF card interface (24).

7. A cellular radio-based sectorized broadcast system according to claim 1 or 2 or 3 or 4, wherein said transmitter and speaker are provided with a battery and an emergency light.