CN102457342A - Local wireless amplifying device of public broadcast - Google Patents
Local wireless amplifying device of public broadcast Download PDFInfo
- Publication number
- CN102457342A CN102457342A CN2010105245524A CN201010524552A CN102457342A CN 102457342 A CN102457342 A CN 102457342A CN 2010105245524 A CN2010105245524 A CN 2010105245524A CN 201010524552 A CN201010524552 A CN 201010524552A CN 102457342 A CN102457342 A CN 102457342A
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- amplifying device
- control module
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- local wireless
- audio
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Abstract
The invention provides a local wireless amplifying device of public broadcast for performing local amplification by use of a speaker of a public broadcast system. The local wireless amplifying device consists of a control module A for wireless receiving and a transmitting module B for audio and control signals, wherein the transmitting module B and the control module A perform communication between the audio signal and the control signal through the ways of frequency modulation, Bluetooth, 2.4G and the like; the transmitting module transmits the local audio and control signals to the control module A in a wireless mode; and the control module A receives the audio and control signals, performs power amplification and amplifies by use of a local speaker of public broadcast.
Description
Technical field
The present invention relates to Public Address system, relate in particular to the local wireless enlarging function of public broadcasting.
Background technology
Public broadcasting is widely used in public places such as school, square, hospital, plant area, army, airport, residential quarters, and the loud speaker of public broadcasting all can be installed in each classroom of school, each room of office block etc.
From demands such as teaching, speeches, the independent audio enlarging function demand of address is also more and more separately.And existing solution is for need set up independently public address system separately; That is: Public Address system is established for the audio frequency enlarging function of unified front end, sets up independent audio amplifier system (being equipped with independent power amplifier and loud speaker) in the place that needs independent audio to amplify.
Such allocation plan need be installed two and overlap independently loud speaker; Because the audio power of public broadcasting is output as level pressure output; The local audio power that amplifies is output as decides resistance output (under most of situation), and two cover audio signals can not be exported on same loud speaker the same time.
To this, market to small investment, can utilize the loud speaker of Public Address system to carry out the product that local audio amplifies to have proposed demand.
Summary of the invention
In sum, the invention provides a kind of local wireless amplifying device that utilizes the Public Address system loud speaker to carry out the public broadcasting that this locality amplifies.
For realizing above-mentioned purpose, the present invention adopts following scheme: described local wireless amplifying device is formed with the transmitter module B two parts that are used for audio frequency, control signal by being used for wireless receiving control module A; Transmitter module B and control module A carry out the communication of audio signal and control signal through modes such as frequency modulation, bluetooth, 2.4G; Transmitter module B is wirelessly transmitted to control module A with the audio frequency and the control signal of this locality, and control module A carries out utilizing the local loud speaker of public broadcasting to amplify after the power amplification after receiving.
Description of drawings
Accompanying drawing is a workflow diagram of the present invention
Embodiment
As shown in the figure, the present invention provides a kind of local wireless amplifying device that utilizes the Public Address system loud speaker to carry out the public broadcasting that this locality amplifies, and forms with the transmitter module B two parts that are used for audio frequency, control signal by being used for wireless receiving control module A; Transmitter module B and control module A carry out the communication of audio signal and control signal through modes such as frequency modulation, bluetooth, 2.4G; Transmitter module B is wirelessly transmitted to control module A with the audio frequency and the control signal of this locality, and control module A carries out utilizing the local loud speaker of public broadcasting to amplify after the power amplification after receiving.
Claims (6)
1. the local wireless amplifying device of public broadcasting, it is characterized by: the local wireless amplifying device of described public broadcasting comprises the transmitter module B that is used for wireless receiving control module A and is used for audio frequency, control signal.
2. the local wireless amplifying device of public broadcasting, it is characterized by: the local loud speaker of the local wireless amplifying device public broadcasting capable of using of described public broadcasting carries out this locality and amplifies.
3. the local wireless amplifying device of public broadcasting, it is characterized by: the local wireless amplifying device of described public broadcasting can be wirelessly transmitted to control module A through transmitter module B with local audio and carry out power amplification.
4. according to the local wireless amplifying device of claim 1,2,3 described public broadcastings, it is characterized by: the wireless communication mode of transmitter module B and control module control module A can be the communication modes of frequency modulation.
5. according to the local wireless amplifying device of claim 1,2,3 described public broadcastings, it is characterized by: the wireless communication mode of transmitter module B and control module control module A can be the communication modes of bluetooth.
6. according to the local wireless amplifying device of claim 1,2,3 described public broadcastings, it is characterized by: the wireless communication mode of transmitter module B and control module control module A can be the communication modes of 2.4G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105245524A CN102457342A (en) | 2010-10-29 | 2010-10-29 | Local wireless amplifying device of public broadcast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105245524A CN102457342A (en) | 2010-10-29 | 2010-10-29 | Local wireless amplifying device of public broadcast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102457342A true CN102457342A (en) | 2012-05-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105245524A Pending CN102457342A (en) | 2010-10-29 | 2010-10-29 | Local wireless amplifying device of public broadcast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102457342A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932080A (en) * | 2012-11-01 | 2013-02-13 | 王成林 | Novel service system and method |
| CN104065435A (en) * | 2013-03-22 | 2014-09-24 | 成都众山科技有限公司 | Wireless broadcast early-warning station with music playing function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729168A (en) * | 2008-10-24 | 2010-06-09 | 刘承红 | Broadcasting system for realizing remote control by utilizing wireless forwarding |
| CN101764654A (en) * | 2008-10-24 | 2010-06-30 | 杨林 | Constant-pressure broadcast system by using a plurality of wireless forwarders for realizing addressable broadcasting |
| CN101763716A (en) * | 2008-10-24 | 2010-06-30 | 杨林 | Wireless volume control module |
| CN101764658A (en) * | 2008-10-09 | 2010-06-30 | 杨林 | Multi-program-source constant-voltage addressable broadcast |
-
2010
- 2010-10-29 CN CN2010105245524A patent/CN102457342A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764658A (en) * | 2008-10-09 | 2010-06-30 | 杨林 | Multi-program-source constant-voltage addressable broadcast |
| CN101729168A (en) * | 2008-10-24 | 2010-06-09 | 刘承红 | Broadcasting system for realizing remote control by utilizing wireless forwarding |
| CN101764654A (en) * | 2008-10-24 | 2010-06-30 | 杨林 | Constant-pressure broadcast system by using a plurality of wireless forwarders for realizing addressable broadcasting |
| CN101763716A (en) * | 2008-10-24 | 2010-06-30 | 杨林 | Wireless volume control module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102932080A (en) * | 2012-11-01 | 2013-02-13 | 王成林 | Novel service system and method |
| CN104065435A (en) * | 2013-03-22 | 2014-09-24 | 成都众山科技有限公司 | Wireless broadcast early-warning station with music playing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Lin Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |