CN108924693A - A kind of power amplifier stereo set of multicast - Google Patents
A kind of power amplifier stereo set of multicast Download PDFInfo
- Publication number
- CN108924693A CN108924693A CN201810895324.4A CN201810895324A CN108924693A CN 108924693 A CN108924693 A CN 108924693A CN 201810895324 A CN201810895324 A CN 201810895324A CN 108924693 A CN108924693 A CN 108924693A
- Authority
- CN
- China
- Prior art keywords
- power amplifier
- module
- source
- sound
- stereo set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
Abstract
The invention discloses a kind of power amplifier stereo sets of multicast, including source of sound part, and at least one active audio amplifier wirelessly connecting with the source of sound part；The sound source part point includes decoder and the first power module, source of sound input module and the wireless RF transmission module that are connected respectively with the decoder；The active audio amplifier includes power amplifier, and the second power supply module, speaker and the wireless RF reception module that are connected respectively with the power amplifier.The present invention can be realized a source of sound by wireless transmission while match at least one active loundspeakers, without being connected by tone frequency channel wire, and it can achieve the effect that while play, simultaneously, power amplifier stereo set can need arbitrarily movement according to user, reduce cost of labor and material cost.
Description
Technical field
The present invention relates to radio transmission technical field more particularly to a kind of power amplifier stereo sets of multicast.
Background technique
In the prior art, sound system is divided into source of sound part, power amplifier part and speaker part, this three pieces or is integrated in one
In equipment, or it is divided into two, three, or effect regulating device is added to be divided into more equipment.But no matter how divide, sound
Source decoder section and back power amplifier part are connected by tone frequency channel wire, and power amplifier also needs to be connected with tone frequency channel wire with sound box bodies
It connects.
In the research and practice to the prior art, it was found by the inventors of the present invention that above-mentioned sound box system realizes many
The difficulty that sound equipment is played simultaneously is larger, and bring cost of labor and material cost are higher, meanwhile, system equipment is once installed
After good, cannot at will it move.
Summary of the invention
The object of the present invention is to provide a kind of power amplifier stereo sets of multicast, can be realized a source of sound and pass through
Wireless transmission is matched at least one active loundspeakers simultaneously, without being connected by tone frequency channel wire, and the effect that can reach while play
Fruit, meanwhile, power amplifier stereo set can need arbitrarily movement according to user, reduce cost of labor and material cost.
In order to solve the above technical problem, the present invention provides a kind of power amplifier stereo sets of multicast, including sound source part
Point, and at least one active audio amplifier wirelessly being connect with the source of sound part；The sound source part point includes decoding
Device and the first power module being connected respectively with the decoder, source of sound input module and wireless RF transmission module；It is described
Active audio amplifier includes power amplifier, and the second power supply module, speaker and the nothing that are connected respectively with the power amplifier
Line RF receiving module.
Preferably, the tranmitting frequency of the RF transmitting module is 500-900MHz, the reception of the wireless RF reception module
Frequency is 500-900MHz.
Preferably, the source of sound part further includes with the tuner that the decoder connect respectively, and with it is described wirelessly
The connection of RF transmitting module is used to adjust tranmitting frequency or lock the first MCU control module of tranmitting frequency.
Preferably, the source of sound input module includes CD or DVD turntable, sound card, and for broadcasting with MP3 player, MP4
Put the USB interface that device is connected with mobile phone terminal, and the serial ports for connecting with the end PC.
Preferably, the active audio amplifier further includes being connect with the power amplifier for adjusting reception frequency or locking
Receive the second MCU control module of frequency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the power amplifier stereo set for multicast that one embodiment of the present of invention provides；
Fig. 2 is a kind of another structural representation of the power amplifier stereo set for multicast that one embodiment of the present of invention provides
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1 and Fig. 2, a kind of power amplifier stereo set for multicast that one embodiment of the present of invention provides, packet
It includes：Source of sound part, and at least one active audio amplifier wirelessly being connect with the source of sound part；The source of sound part
The first power module, source of sound input module and the wireless RF transmission being connected including decoder and respectively with the decoder
Module.The active audio amplifier includes power amplifier, and be connected respectively with the power amplifier second power supply module,
Speaker and wireless RF reception module.
Preferably, the tranmitting frequency of the RF transmitting module is 500-900MHz, the reception of the wireless RF reception module
Frequency is 500-900MHz.
It is understood that the power amplifier stereo set of the multicast includes a decoder and several active sounds
Case, 500-900MHz wireless audio transmitting chip built in the decoder or mould group, 500- built in each active audio amplifier
900MHz wireless audio reception chip or mould group realize one to realize that a source of sound part and several active audio amplifiers are matched
A source of sound part plays simultaneously in several active audio amplifiers.
It should be noted that the power amplifier stereo set of the multicast is using wireless RF (500-900MHz)
Mode, transmission is digital signal, is not easily susceptible to interference and signal is delayed few (2ms).
It should be noted that the source of sound part further includes the first control panel, the active audio amplifier further includes the second control
Panel processed.
Preferably, the source of sound part further includes with the tuner that the decoder connect respectively, and with it is described wirelessly
The connection of RF transmitting module is used to adjust tranmitting frequency or lock the first MCU control module of tranmitting frequency.
In the present embodiment, emitting portion and receiving portion are in same frequency point automatic matching, in the case where having matched, hair
Adjustment frequency point is penetrated, receiving portion can automatic synchronization.Meanwhile locking frequency point function can be added in the power amplifier stereo set of the multicast
Can, same frequency active audio amplifier no longer interferes with each other after locking frequency point.
Preferably, the source of sound input module includes CD or DVD turntable, sound card, and for broadcasting with MP3 player, MP4
Put the USB interface that device is connected with mobile phone terminal, and the serial ports for connecting with the end PC.
In the present embodiment, the power amplifier stereo set of the multicast is whole from MP3 player, MP4 player and mobile phone
End and CD or DVD turntable etc. receive audio signal, decode the analog audio signal come described in through tuner and USB
RF transmitting module is converted to digital signal transmission and goes out.The RF receiving module launches the sound source part received point
Digital audio and video signals be converted to analog signal and be input to power amplifier, release sound by amplification input speaker.
Preferably, the active audio amplifier further includes being connect with the power amplifier for adjusting reception frequency or locking
Receive the second MCU control module of frequency.
The power amplifier stereo set for being provided for the embodiments of the invention a kind of multicast above is described in detail, this
Using a specific example illustrates the principle and implementation of the invention in text, the explanation of above example is only intended to
It facilitates the understanding of the method and its core concept of the invention：At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (5)
1. a kind of power amplifier stereo set of multicast, which is characterized in that including source of sound part, and wirelessly with institute
State at least one active audio amplifier of source of sound part connection；The sound source part point including decoder and respectively with the decoder
The first power module, source of sound input module and the wireless RF transmission module being connected；The active audio amplifier includes power amplifier,
And second power supply module, speaker and the wireless RF reception module being connected respectively with the power amplifier.
2. the power amplifier stereo set of multicast according to claim 1, which is characterized in that the hair of the RF transmitting module
Radio frequency rate is 500-900MHz, and the reception frequency of the wireless RF reception module is 500-900MHz.
3. the power amplifier stereo set of multicast according to claim 1, which is characterized in that the source of sound part further includes
With the tuner that the decoder connect respectively, and connect with the wireless RF transmission module be used to adjust tranmitting frequency or
Lock the first MCU control module of tranmitting frequency.
4. the power amplifier stereo set of multicast according to claim 1, which is characterized in that the source of sound input module packet
CD or DVD turntable, sound card, and the USB interface for connecting with MP3 player, MP4 player and mobile phone terminal are included, and is used
In the serial ports being connect with the end PC.
5. the power amplifier stereo set of multicast according to claim 1, which is characterized in that the active audio amplifier further includes
What is connect with the power amplifier receives the second MCU control module of frequency for adjusting reception frequency or locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895324.4A CN108924693A (en) | 2018-08-07 | 2018-08-07 | A kind of power amplifier stereo set of multicast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895324.4A CN108924693A (en) | 2018-08-07 | 2018-08-07 | A kind of power amplifier stereo set of multicast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108924693A true CN108924693A (en) | 2018-11-30 |
Family
ID=64394735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810895324.4A Pending CN108924693A (en) | 2018-08-07 | 2018-08-07 | A kind of power amplifier stereo set of multicast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108924693A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050261789A1 (en) * | 2004-05-18 | 2005-11-24 | Chen Pao S | Audio wireless transmission and receiving and amplifying system |
| CN106170109A (en) * | 2015-12-23 | 2016-11-30 | 闫天时 | A kind of movie theatre Wireless surrounding audio amplifier |
-
2018
- 2018-08-07 CN CN201810895324.4A patent/CN108924693A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050261789A1 (en) * | 2004-05-18 | 2005-11-24 | Chen Pao S | Audio wireless transmission and receiving and amplifying system |
| CN106170109A (en) * | 2015-12-23 | 2016-11-30 | 闫天时 | A kind of movie theatre Wireless surrounding audio amplifier |
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