CN101895697A - A kind of rapid-action N+1 television emission system - Google Patents
A kind of rapid-action N+1 television emission system Download PDFInfo
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- CN101895697A CN101895697A CN 201010238432 CN201010238432A CN101895697A CN 101895697 A CN101895697 A CN 101895697A CN 201010238432 CN201010238432 CN 201010238432 CN 201010238432 A CN201010238432 A CN 201010238432A CN 101895697 A CN101895697 A CN 101895697A
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Abstract
The N+1 television emission system that the present invention relates to is to have high reliability, rapid-action multi-path digital television emission system.Realize that a master transmitter when emission system breaks down in the time of can not normally broadcasting, make fast reaction, substitute work, the function that after reparation, switches back again by the transmitter of backup; Assurance system operate as normal.Because the present invention, improved the power efficiency of transmitter greatly, not only saved the energy, and reduced the discharging of heat the space, thus environmental protection and energy-conservation on have positive meaning; Improve the craftmanship of television transmitter simultaneously, promoted the level of China's television transmitter and the gap between shortening and the developed country.The invention is characterized in: auxiliary transmitter is not Hot Spare but cold standby; The separate unit transmitter has very high power efficiency, energy-saving and environmental protection; System can realize the remote control management, and huge storage capacity recording; Automatically switch, realize unattended operation.
Description
Technical field
The rapid-action N+1 television emission system that the present invention relates to is in order to improve the reliability of Digital Television emission system, and highly reliable, the rapid-action multi-path digital television emission system of exploitation.Realize that a master transmitter when emission system breaks down in the time of can not normally broadcasting, and makes fast reaction, by the alternative work of the transmitter of backup, the function that switches back again after this master transmitter reparation; Guarantee the emission system operate as normal.Realize simultaneously functions such as the processing of transmitter enforcement intelligent trouble, long-distance measure and control, data managements.This project is most important for the reliability that improves the Digital Television emission; And because the present invention, improved the power efficiency of transmitter self greatly, not only saved the energy, and reduced the discharging of heat the space, thus environmental protection and energy-conservation on have positive meaning; Improve the craftmanship of television transmitter simultaneously, promoted the level of China's television transmitter and the gap between shortening and the developed country.
Background technology
TV and Radio Service, station are the mouthpieces of party and state, are very important public opinion positions, also are the important needs of broad masses of the people's spiritual civilization; Television emission system then is a TV and Radio Service, one of the very important equipment of standing.If fault appears breaking in TV and Radio Service, station, In the view of common people, be the inappreciable utmost point short time, also be serious accident.For this reason, all advocating the N+1 television emission system both at home and abroad in recent years.
The key of N+1 television emission system is, requires arbitrary master transmitter in the system to break down in the time of can not normally broadcasting, and can make fast reaction, switches fast, must finish in the time faster than the industry standard defined greatly; Replace the work of fault transmitter rapidly by a standby transmitter.
Full-order system is: auxiliary transmitter is not Hot Spare but cold standby; And each separate unit transmitter of forming system has very high power efficiency again, thereby reaches the purpose of energy-saving and environmental protection; System can realize the remote control management, and huge storage capacity recording; Automatically realize switching, realize unattended operation.
System comprises: equipment such as Control Server (hereinafter to be referred as " server "), switch, display unit, modulator, exciting unit, transmitter, antenna, load, signal shifter, dynaform controller and dynaform.
Server, switch, display unit, signal shifter, dynaform controller and dynaform etc. are to realize main composition of the present invention, and the status information of equipment of system derives from each equipment that is connected on the network.
Many (N) platform master transmitter is arranged on the N+1 television emission system, have one to be standby transmitter.Server all is provided with power threshold to master transmitter, when the master transmitter power output is below or above threshold value, the power data of transmitter shows the control unit by it and sends server back to, and server just judges that it is out of order, and notifies it to show the control unit and closes corresponding master transmitter power supply.Then, send switching command to the dynaform controller, dynaform (switch places automatic ability to control automatically) carries out active and standby switching, standby host is connect antenna and main frame connects dummy load.Photoelectric detective circuit confirms whether switching state puts in place, puts in place as switching and then opens the standby transmitter power supply, makes the automatic operate as normal of whole television emission system simultaneously; Otherwise standby transmitter is not powered.The dynaform controller also shows the connection status of self and transmitter by panel.
Every monitoring index of transmitter is delivered to server by network interface (TCP/IP).Server and terminal, the threshold values that each parameter exceeds standard is set on server.
The theory diagram of N+1 television emission system is seen " description of drawings " Fig. 1.
The main control unit of N+1 television emission system, circle collection each transmitter operating state and parameter, and show at the monitoring page in real time; Timing storing state and data.Display interface is seen " description of drawings " Fig. 3.
The integral body of N+1 television emission system connects sees " description of drawings " Fig. 5.
Summary of the invention
In view of the foregoing, the objective of the invention is to, for the N+1 television emission system provides reliably, switches fast and protects.Basic design philosophy is: arbitrary master transmitter in the system breaks down in the time of can not normally broadcasting, and can make fast reaction, switches fast, finishes in the time faster than the industry standard defined greatly; Replace the work of fault transmitter rapidly by a standby transmitter; Auxiliary transmitter is not Hot Spare but cold standby; And each separate unit transmitter of forming system has very high power efficiency again, thereby reaches the purpose of energy-saving and environmental protection; System can realize the remote control management, and huge storage capacity recording; Automatically realize switching, realize unattended operation.The present invention embeds monitoring terminal system software in the dynaform controller, use microcomputer to realize monitoring; Thereby make the dynaform controller have following function:
1, has terminal transmitter state recognition function;
2, have manually, controlled function is optional automatically;
3, be located at auto state, but the transmitter unattended operation;
4, precise control, reliable and stable.
The monitor terminal software systems of N+1 television emission system, its structure chart are seen " description of drawings " Fig. 2.
The flow chart of main program is seen " description of drawings " Fig. 4.
These software systems comprise: data acquisition program, TMP, data server hypervisor and database.
Server is the control and management center of equipment.Its status information of equipment derives from each equipment that is connected on the network.Many transmitters are arranged in the system, wherein only have one to be out of order back standby for master transmitter.Server all is provided with power threshold to active and standby transmitter, and when the master transmitter power output was lower than threshold value, the power data of transmitter returned server by control unit.The detected active and standby machine state of photoelectric detector returns by the dynaform controller simultaneously; The detected state of server must positive stop.Judge that as server corresponding master transmitter is out of order, just notify each display unit to close corresponding master transmitter power supply.By the dynaform controller, send switching command to dynaform then, control dynaform (switch places automatic ability to control automatically) carries out active and standby switching, standby host is connect antenna and main frame connects dummy load.Photoelectric detector confirms whether the dynaform switching state puts in place simultaneously, and switching puts in place then opens the standby transmitter power supply, makes the automatic operate as normal of whole television emission system.Otherwise to the transmitter power supply, system does not send the prompting alarm song.The dynaform controller has also shown the connection status of dynaform and transmitter by panel.
Dynaform is used to switch master transmitter (in work) and standby transmitter (treating work); Photoelectric detector is used to obtain state, when photoelectric tube is shone, and detector output high level; Intercepted output low level.The dynaform controller is controlled dynaform according to system mode.
Signal shifter is mainly in order to realize the switching and the selection function of multichannel voice frequency, video or TS transport stream.Adopt two 8 passage multidiameter option switch controllers, can import the individual signal of 12 (6X2) simultaneously, two-way is one group.Can select to export any one group of signal in 6 groups.
Signal shifter cooperates with network control chip, carries out long-range signal handover management.Implement real-time condition monitoring.
Cooperate 6 tunnel interlocking buttons simultaneously, can shield long-range networking command in this locality, manually control.Prevent the generation of out-of-control phenomenon when telecommunication network broken down.
It is as follows that signal shifter has functional parameter:
1, conduction impedance is less than 0.1 Ω;
2, channels crosstalk is less than-90dB;
3,3db bandwidth 210MHz;
4, input signal amplitude Vpp_max=10V (± 5V);
5, switch time-delay 80ns;
6, support 12 tunnel totally six groups of inputs, two-way output;
7, support ICP/IP protocol.
Description of drawings
Fig. 1 is a general principles block diagram of the present invention.
Fig. 2 is monitoring terminal system software system structure figure of the present invention.
The display interface that Fig. 3 monitors in real time for the present invention.
Fig. 4 is the flow chart of main program.
Fig. 5 is an entire system connection diagram of the present invention.
Embodiment
Signal shifter is one of composition of N+1 television emission system.Be primarily implemented in the switching and the selection function of multichannel voice frequency, video or TS transport stream.Can be used for being implemented in the analogue audio frequency, video of multichannel and the digital TS stream and select output, supply with modulation, the transmitter of back level.
Remote control signal uses the network interface data, and local the switching adopted manual button (toggle switch); The local priority of switching is higher than long-range switching.
Signal shifter adopts two 8 passage multidiameter option switch controllers.Can import the individual signal of 12 (6X2) simultaneously, two-way is one group.Can select to export any one group of signal in 6 groups.
Cooperate network control chip to carry out long-range signal handover management.Implement real-time condition monitoring.
Cooperate 6 tunnel interlocking buttons simultaneously, can shield long-range networking command in this locality, manually control; Prevent generation out of control when telecommunication network broken down.
The dynaform controller is the automatic control equipment of independent research among the present invention.Include the embedded computer supervisory control system.Have the network interface that is used for automatic control, the operating state of control unit shows by panel, and is simple and clear.Support manual and long-range switching, the local priority of switching is higher than long-range switching.
Dynaform is the automatic control equipment of independent research among the present invention.Have infrared position detector (guarantee to put in place, just start transmitter), control by the coaxial switch controller in the coaxial switch conversion; Support manual and long-range switching, the local priority of switching is higher than long-range switching.
Emitter among the present invention all can be used for " N+1 " backup. Mandatory declaration, its characteristics of described emitter are:
1, adopted special technology path
Described technology path mainly refers to the selection of the Primary Component final stage high power valve of emitter. We have selected 3450 of FREESCALE at present, and this also is that our emitter is in one of higher principal element of current efficient.
2, good system
Described system mainly refers to the whole power link of emitter, and our emitter power amplifier chain is through optimizing fully; And have current-sharing electric power system and a good control system.
3, superior system realizes technology
A) key of realization native system is three synthetic final stage power amplifier unit.
B) adopt broadband four distributors and broadband four synthesizer schemes. Transform on this basis present exciting unit, adopt the Linear Power Amplifier excitation of about 5W level.
C) adopt the current-sharing electric power system to realize energy-conserving and environment-protective, reduce cost. The power consumption of three synthetic final stage power amplifier unit is between 18～20A, and half that only have the 2500W power source loads is less than (workload of Switching Power Supply should be only optimum state greater than 80%). Like this, the digital TV transmitter of 1kW gets final product with two 2500W Power supplies, and the 3rd power supply is backup; The emitter of 500W DTV gets final product with a 2500W Power supply, and second power supply is backup. And the cabinet of the power supply 1U of the companies such as POWERONE can hold 4 * 2500W power supply, and price is also unlike domestic power supply height; Its advantage is apparent.
More than these technical guarantee emitter energy-efficient, make our emitter overall efficiency reach 30%. Such transmitter power efficiency maintains the leading position in the same industry at home; Has significant meaning.
Claims (3)
1. a rapid-action N+1 television emission system is made up of equipment such as server, switch, display unit, modulator, exciting unit, transmitter, antenna, load, signal shifter, coaxial switch controller and coaxial switches; Its key is, requires a transmitter in the system to break down in the time of can not normally broadcasting, and can make fast reaction; Described this rapid-action N+1 television emission system is characterized in that: auxiliary transmitter is not Hot Spare but cold standby; And each separate unit transmitter of forming system has very high power efficiency again, thereby reaches the purpose of energy-saving and environmental protection; System can realize the remote control management, and huge storage capacity recording; Automatically realize switching, realize unattended operation; That is:
It is to adopt special signal shifter, is implemented in the switching and the selection function of multichannel voice frequency, video or TS transport stream; Can be used for being implemented in the analogue audio frequency, video of multichannel and the digital TS stream and select output, supply with modulation, the transmitter of back level; Remote control signal uses the network interface data, and local the switching adopted manual button (toggle switch); The local priority of switching is higher than long-range switching.
2. rapid-action N+1 television emission system as claimed in claim 1 is characterized in that its dynaform controller includes the embedded computer supervisory control system; Have the network interface that is used for automatic control, the operating state of control unit shows by panel; Support manual and long-range switching, the local priority of switching is higher than long-range switching; That is:
Dynaform controller (switch places automatic ability to control automatically) control dynaform carries out active and standby switching, standby host is connect antenna and main frame connects dummy load; Photoelectric detector confirms whether the dynaform switching state puts in place simultaneously, and switching puts in place then opens the standby transmitter power supply, makes the automatic operate as normal of whole television emission system; Otherwise to the transmitter power supply, system does not send the prompting alarm song; The dynaform controller has also shown the connection status of dynaform and transmitter by panel.
3. rapid-action N+1 television emission system as claimed in claim 1 is characterized in that, its signal shifter is mainly in order to realize the switching and the selection function of multichannel voice frequency, video or TS transport stream; That is:
Adopt two 8 passage multidiameter option switch controllers, can import the individual signal of 12 (6X2) simultaneously, two-way is one group; Can select to export any one group of signal in 6 groups; Signal shifter cooperates with network control chip, carries out long-range signal handover management; Implement real-time condition monitoring; Cooperate 6 tunnel interlocking buttons simultaneously, can shield long-range networking command in this locality, manually control, prevent the generation of out-of-control phenomenon when telecommunication network broken down; It is as follows that signal shifter has functional parameter:
1, conduction impedance is less than 0.1 Ω;
2, channels crosstalk is less than-90dB;
3,3db bandwidth 210MHz;
4, input signal amplitude Vpp_max=10V (± 5V);
5, switch time-delay 80ns;
6, support 12 tunnel totally six groups of inputs, two-way output;
7, support ICP/IP protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010238432 CN101895697A (en) | 2010-07-21 | 2010-07-21 | A kind of rapid-action N+1 television emission system |
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| CN 201010238432 CN101895697A (en) | 2010-07-21 | 2010-07-21 | A kind of rapid-action N+1 television emission system |
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| CN101895697A true CN101895697A (en) | 2010-11-24 |
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| CN 201010238432 Pending CN101895697A (en) | 2010-07-21 | 2010-07-21 | A kind of rapid-action N+1 television emission system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215353A (en) * | 2011-04-07 | 2011-10-12 | 成都新光微波工程有限责任公司 | N+1 radio frequency (RF) high-power intelligent synthesis system |
| CN102625134A (en) * | 2012-03-07 | 2012-08-01 | 成都新光微波工程有限责任公司 | Intelligent monitoring comprehensive platform of N+1 digital television emission system |
| CN103326745A (en) * | 2013-06-28 | 2013-09-25 | 成都凯腾四方数字广播电视设备有限公司 | Terrestrial digital television broadcasting redundancy transmitting device and redundancy method |
| CN103686160A (en) * | 2014-01-02 | 2014-03-26 | 成都新光微波工程有限责任公司 | Universal digital television emission intelligent monitoring switching system and switching method |
| CN104320599A (en) * | 2014-10-30 | 2015-01-28 | 成都新光微波工程有限责任公司 | 1+1 main emission system and backup emission system controller |
| CN104954043A (en) * | 2015-06-29 | 2015-09-30 | 中国电子科技集团公司第三十八研究所 | S-band megawatt dual-unit hot standby transmitter and control method thereof |
| EP2827504A4 (en) * | 2012-03-15 | 2015-12-02 | Toshiba Kk | Transmission system and method for controlling same |
| CN106791515A (en) * | 2017-02-23 | 2017-05-31 | 苏州全波通信技术有限公司 | Digital TV transmitter standby usage emitter intelligent switching system and its implementation |
| CN110119113A (en) * | 2019-05-10 | 2019-08-13 | 林大桥 | A kind of embedded short-wave antenna alteration switch control system |
| CN116800283A (en) * | 2023-08-16 | 2023-09-22 | 成都德芯数字科技股份有限公司 | N+1 switching transmitting system and information monitoring method thereof |
-
2010
- 2010-07-21 CN CN 201010238432 patent/CN101895697A/en active Pending
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| 《XG615A01型信号切换器使用说明书》 20100122 成都新光微波工程有限责任公司 XG615A01型信号切换器使用说明书 , 2 * |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215353A (en) * | 2011-04-07 | 2011-10-12 | 成都新光微波工程有限责任公司 | N+1 radio frequency (RF) high-power intelligent synthesis system |
| CN102625134A (en) * | 2012-03-07 | 2012-08-01 | 成都新光微波工程有限责任公司 | Intelligent monitoring comprehensive platform of N+1 digital television emission system |
| EP2827504A4 (en) * | 2012-03-15 | 2015-12-02 | Toshiba Kk | Transmission system and method for controlling same |
| CN103326745B (en) * | 2013-06-28 | 2015-04-29 | 成都凯腾四方数字广播电视设备有限公司 | Terrestrial digital television broadcasting redundancy transmitting device and redundancy method |
| CN103326745A (en) * | 2013-06-28 | 2013-09-25 | 成都凯腾四方数字广播电视设备有限公司 | Terrestrial digital television broadcasting redundancy transmitting device and redundancy method |
| CN103686160B (en) * | 2014-01-02 | 2015-08-05 | 成都新光微波工程有限责任公司 | Universal digital television emission intelligent monitoring switched system and changing method |
| CN103686160A (en) * | 2014-01-02 | 2014-03-26 | 成都新光微波工程有限责任公司 | Universal digital television emission intelligent monitoring switching system and switching method |
| CN104320599A (en) * | 2014-10-30 | 2015-01-28 | 成都新光微波工程有限责任公司 | 1+1 main emission system and backup emission system controller |
| CN104954043A (en) * | 2015-06-29 | 2015-09-30 | 中国电子科技集团公司第三十八研究所 | S-band megawatt dual-unit hot standby transmitter and control method thereof |
| CN106791515A (en) * | 2017-02-23 | 2017-05-31 | 苏州全波通信技术有限公司 | Digital TV transmitter standby usage emitter intelligent switching system and its implementation |
| CN106791515B (en) * | 2017-02-23 | 2019-12-24 | 苏州全波通信技术有限公司 | Intelligent switching system for main and standby transmitters of digital television transmitter and implementation method thereof |
| CN110119113A (en) * | 2019-05-10 | 2019-08-13 | 林大桥 | A kind of embedded short-wave antenna alteration switch control system |
| CN116800283A (en) * | 2023-08-16 | 2023-09-22 | 成都德芯数字科技股份有限公司 | N+1 switching transmitting system and information monitoring method thereof |
| CN116800283B (en) * | 2023-08-16 | 2024-05-24 | 成都德芯数字科技股份有限公司 | N+1 switching transmitting system and information monitoring method thereof |
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Application publication date: 20101124 |