CN102457344A - Broadcasting controller for branch control - Google Patents
Broadcasting controller for branch control Download PDFInfo
- Publication number
- CN102457344A CN102457344A CN2010105245717A CN201010524571A CN102457344A CN 102457344 A CN102457344 A CN 102457344A CN 2010105245717 A CN2010105245717 A CN 2010105245717A CN 201010524571 A CN201010524571 A CN 201010524571A CN 102457344 A CN102457344 A CN 102457344A
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- CN
- China
- Prior art keywords
- broadcasting
- control
- controller
- branch
- audio frequency
- 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.)
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention provides a broadcasting controller for branch control. By the invention, the broadcasting equipment in a branch control room can be automatically controlled under the premise that control cables are not paved, so that the cost of automatic control of branch control broadcasting is greatly saved. The technical scheme adopted by the invention is as follows: the broadcasting controller for the branch controller uses an audio frequency power signal output by an upper level of broadcasting room to be as a control signal, when the broadcasting controller for the branch controller receives the audio frequency power signal output by the upper level of broadcasting room, the audio frequency power signal is used as a trigger signal for switching on a local broadcasting equipment power supply, and when the audio frequency power signal output by the upper level of broadcasting room stops, the action of switching off the local broadcasting equipment power supply is carried out.
Description
Technical field
The present invention relates to Public Address system.
Background technology
The public broadcasting range of application is very extensive, and all there is use public places such as school, square, hospital, plant area, army, airport, residential quarters, along with the continuous refinement of user demand, is increasingly high to the requirement of public broadcasting control section.Public Address system generally all needs the framework (master-control room---one-level is divided control---secondary divides control---, and the n level is divided control) of multilayer, simply the most also needs two-tier system, like the broadcast main control chamber of school---the sub-control room on playground.
Existing solution probably is divided into two kinds: the solution of numeral and solution manually.
Digital solutions is generally taked frequency modulation, network or 485 simple control methods, realizes to the sub-control room Equipment Control, and shortcoming realizes that for all laying the control cable of master-control room to sub-control room cost is too high.
Implementation method manually is too original again, and operation is inconvenience extremely, and the waste great amount of manpower.To this, people to small investment, can realize automatically dividing the public broadcasting product of control broadcasting to propose demand.
Summary of the invention
In sum, the present invention provides a kind of broadcasting controller that is used for the branch control, can under the prerequisite of not laying the control cable, realize the automatic control to the sub-control room broadcasting equipment, has saved greatly and has realized dividing the control broadcasting cost of control automatically.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: the broadcasting controller that is used for branch control with the audio power signal of upper level studio output as control signal;, the broadcasting controller that is used for the branch control, when the audio power signal of upper level studio output stops, making the action of closing the local broadcast facility power supply when receiving the audio power signal of upper level studio output as the triggering signal of opening the local broadcast facility power supply.
Description of drawings
Accompanying drawing 1 is a workflow diagram of the present invention
Embodiment
Shown in accompanying drawing; Whether the broadcasting controller that the present invention is used for the branch control analytically has the output of audio power signal in the studio of one-level; If no-output is failure to actuate, local broadcasting equipment power supply and the audio signal behind local power amplifier output buck are then opened in output if there is the audio power signal upper level studio; This moment is if the upper level studio stops the output audio power signal, and the broadcasting controller that the present invention is used for branch control then cuts out the power supply of local broadcast facility.
Claims (2)
1. be used for the broadcasting controller of branch control, it is characterized by: described broadcasting controller is controlled by the audio power signal of upper level studio output.
2. be used for the broadcasting controller of branch control, it is characterized by: described broadcasting controller can open local power amplifier power supply and output meets the audio signal that power amplifier uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105245717A CN102457344A (en) | 2010-10-29 | 2010-10-29 | Broadcasting controller for branch control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105245717A CN102457344A (en) | 2010-10-29 | 2010-10-29 | Broadcasting controller for branch control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102457344A true CN102457344A (en) | 2012-05-16 |
Family
ID=46040067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105245717A Pending CN102457344A (en) | 2010-10-29 | 2010-10-29 | Broadcasting controller for branch control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102457344A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004158907A (en) * | 2002-11-01 | 2004-06-03 | Hitachi Kokusai Electric Inc | Community antenna system for television |
| CN101764660A (en) * | 2008-10-09 | 2010-06-30 | 杨林 | Constant-voltage broadcasting system of controllable sub-control point |
| CN101764653A (en) * | 2008-10-09 | 2010-06-30 | 杨林 | Constant-pressure broadcasting system by using wireless signals to achieve addressable broadcast |
| CN101764659A (en) * | 2008-10-24 | 2010-06-30 | 杨林 | Constant-pressure broadcasting system for realizing addressable broadcast by using three-core RVV broadcast cable |
-
2010
- 2010-10-29 CN CN2010105245717A patent/CN102457344A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004158907A (en) * | 2002-11-01 | 2004-06-03 | Hitachi Kokusai Electric Inc | Community antenna system for television |
| CN101764660A (en) * | 2008-10-09 | 2010-06-30 | 杨林 | Constant-voltage broadcasting system of controllable sub-control point |
| CN101764653A (en) * | 2008-10-09 | 2010-06-30 | 杨林 | Constant-pressure broadcasting system by using wireless signals to achieve addressable broadcast |
| CN101764659A (en) * | 2008-10-24 | 2010-06-30 | 杨林 | Constant-pressure broadcasting system for realizing addressable broadcast by using three-core RVV broadcast cable |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120516 |