CN108418721A - Radio and television based on Multi net voting Hot Spare relay emergency system - Google Patents
Radio and television based on Multi net voting Hot Spare relay emergency system Download PDFInfo
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- CN108418721A CN108418721A CN201810452621.1A CN201810452621A CN108418721A CN 108418721 A CN108418721 A CN 108418721A CN 201810452621 A CN201810452621 A CN 201810452621A CN 108418721 A CN108418721 A CN 108418721A
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- 238000004891 communication Methods 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000007689 inspection Methods 0.000 abstract description 4
- 238000013459 approach Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 8
- 244000046052 Phaseolus vulgaris Species 0.000 description 8
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 7
- 239000010436 fluorite Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/28—Mobile studios
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Closed-Circuit Television Systems (AREA)
- Studio Devices (AREA)
Abstract
Radio and television relay is required to rapid open signal and to carry out signal reliability guarantee, traditional approach is to send someone to carry out routing inspection or the backup of signal source double route, the present invention proposes to take the mode of Multi net voting Hot Spare, with the system schema of the highly reliable stabilization of low input realization.
Description
Technical field
The present invention relates to broadcasting television technology fields, and in particular to a kind of radio and television relay based on Multi net voting Hot Spare
Emergency system.
Background technology
Traditional radio and television relay, which is usually taken, sends someone to carry out routing inspection or signal source double route backup progress signal
Transmission guarantee, manual type efficiency is low while being also difficult to realize reliable guarantee, when routing interruption occurs, it is difficult to restore rapidly, adopts
It is very high with signal source double route backup reliability, but implementation cost is very high every time, and need to carry out line construction in advance,
Usually to carry the last week is prepared, and two kinds of existing schemes all have the shortcomings that efficiency low cost is high.
Invention content
The object of the present invention is to provide a kind of, and the radio and television based on Multi net voting Hot Spare relay emergency system, to solve
Traditional approach stability and reliability are insufficient, the shortcomings that needing to send someone to carry out routing inspection or the backup of signal source double route.For gram
Disadvantages mentioned above is taken, the purpose realized live streaming, relay reliable operation operation, the invention discloses the broadcast based on Multi net voting Hot Spare
The system comprises communication module, photographing module, IPHONE modules, conversion module, HFC to amplify mould for television relay emergency system
Block, top box of digital machine, handover module, TV display module, power module, HVA interfaces；The power module is steady by LDO-5V
Volt circuit, LDO-12V regulator circuits, 24V12AH lithium batteries, 24V extension battery interface compositions, main function are to provide 5V electricity
Source to IPHONE modules and conversion module, provide 12V power supplys to communication module, photographing module, top box of digital machine, handover module,
TV display module provides 24V power supplys and gives HFC amplification modules；The photographing module by camera, rotary head, WIFI interface,
Internal storage unit, front end services unit composition；The conversion module input terminal is Lightning interfaces, output end HDMI
High-definition interface, VGA images display interface and AUDIO-3.5MM audio interface；The TV display module input terminal is HDMI high
Clear interface, VGA images display interface and AUDIO-3.5MM audio interface, output end is HDMI high-definition interfaces, VGA images are shown
Interface and AUDIO-3.5MM audio interface；The HVA interfaces are by HDMI high-definition interfaces, VGA images display interface, AUDIO-
3.5MM audio interface, 5V power connection points, 12V power connection points, 24V power connection points, common ground tie point are sequentially from a left side
It rearranges to the right；The handover module has A and B two-way input terminals, has HDMI high-definition interfaces, VGA images aobvious per road input terminal
Show interface and AUDIO-3.5MM audio interface, there is output end all the way, output end to there is HDMI high-definition interfaces, VGA images to show and connect
Mouth and AUDIO-3.5MM audio interface, using manual switching；The communication module is that RJ45 connects respectively there are four types of network insertion
Mouth width band WAN accesses, TDD-LTE 4G network insertions, FDD-LTE 4G network insertions, the access of WCDMA 3G networks；It is described logical
News module, IPHONE modules, conversion module access the A input terminals of handover module, HFC amplification modules, number after being sequentially connected in series
Word machine top box accesses the B input terminals of handover module, output end and the TV display module string of the handover module after being connected in series with
Connection connection；The communication module, IPHONE modules, conversion module, handover module, TV display module are sequentially connected in series into heat
Standby channel；The HFC amplification modules, top box of digital machine, handover module, TV display module are sequentially connected in series into main channel；
The photographing module, communication module, IPHONE modules, conversion module, handover module, TV display module are sequentially connected in series into
Camera channel.
The technical principle explanation of the present invention, system major advantage has at 3 points, when the Hot Spare of signal source, it can be in main channel
Standby channel is immediately switched to when occurring abnormal, switching time is not more than 1 second, to keep signal not interrupt；Second is that low input is quick
It builds, plays the system purpose of design for realizing signal Hot Spare with low input；Third, good environmental adaptability, primary channel can be certainly
Power supply, indoors, outdoor, outlying district can steady operation.
Now specific module is illustrated.In system, communication module main function is carried for IPHONE modules, photographing module
For stable signal link, is realized from CCTV platform, paddy beans platform using broadband internet and obtain signal as backup signal
The connectivity of purpose, signal link is crucial, and consideration will adapt to different places to use and the change in signal strength in different spaces,
Use Huawei's B310 routers as module core, there are four types of the communication modules, and network access mode is wide based on RJ45 interfaces
Band WAN accesses are connect based on TDD-LTE 4G network insertions, based on FDD-LTE 4G network insertions, based on WCDMA 3G networks
Enter, be used cooperatively place actual selection, the access way of maximum rate is selected after place to use is tested, to ensure signal link
The downlink of quality, selected access way should be higher than that 10Mbps, time delay should be less than 70ms.IPHONE modules selection IPHONE6S,
It is a in IPHONE7, IPHONE8, IPHONE X, IPAD4, while there are 64G or more, IPHONE modules mainly to make in requirement
Include CCTV APP, paddy beans APP with being the specified application software of operation, exported by Lightning interfaces after decoding graphics/audio,
Through surveying, stable, overall reliability is very high.Conversion module main function is that the signal for exporting Lightning interfaces turns
The output signal of HDMI high-definition interfaces, VGA images display interface and AUDIO-3.5MM audio interface is changed into for being set with rear end
Standby docking.Photographing module is made of camera, rotary head, WIFI interface, internal storage unit, front end services unit, is made
Fluorite APP application software is installed in IPHONE modules simultaneously with fluorite C4S, C5S or C6C model video camera, main function is
The image of shooting is sent to IPHONE modules by WIFI, pass through Lightning interfaces after IPHONE modules installation fluorite APP
It exports image and carries out signal behavior for handover module；The main function of power module is to provide IPHONE modules and conversion module institute
The 5V power supplys needed provide communication module, photographing module, top box of digital machine, handover module, the 12V electricity needed for TV display module
Source is supplied to the 24V power supplys needed for HFC amplification modules, and 24V12AH lithium battery groups built in power module and battery pack extension connect
Mouthful, power supply EMI performances are improved using LDO decompression voltage regulator structures, power module can provide a whole set of system under no alternating current net state
System operation 4 hours or more.
When system operation, main channel is defeated through HFC amplification modules, top box of digital machine by HFC fiber-coaxial nets offer signal source
Go out to handover module, TV display module is monitored signal and provides three kinds of interfaces, including HDMI high-definition interfaces, VGA scheme
As display interface and AUDIO-3.5MM audio interface with meet different rear end equipments include LED large-size screen monitors, projector connection need
It wants, normal condition provides graphics/audio signal using main channel to rear end equipment.Hot standby channel is mutual by communication module offer broadband
Networking channel, to ensure that CCTV platform, paddy beans bracket signal link connection, smoothly, IPHONE modules, which open application software, to be made
With CCTV APP or paddy beans APP, after selection target channel and image definition, the Lightning interfaces output of IPHONE modules
It is output to handover module after the converted module of signal.When main channel occurs abnormal, using handover module manual switching to hot standby
Channel, signal restore unimpeded.
Camera channel is mainly used for the shooting, collecting to place to use image, and the application that when operation opens IPHONE modules is soft
Image is exported by Lightning interfaces after part fluorite APP selection image definitions, switching mould is output to after converted module
Block.When needing place to use image to export to rear end equipment, manual switching is completed to operate to hot standby channel.
Beneficial effects of the present invention provide a kind of radio and television relay emergency system based on Multi net voting Hot Spare, to
The shortcomings that solving traditional approach stability and reliability be insufficient, needing to send someone to carry out routing inspection or the backup of signal source double route,
The present invention is based on the radio and television of Multi net voting Hot Spare relay emergency system can with it is low input realize live signal Hot Spare,
There is larger help to improving emergency response capabilities.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Radio and television of the Fig. 1 based on Multi net voting Hot Spare relay emergency system structure chart
Reference sign
In Fig. 1：11. photographing module, 12. communication modules, 13. IPHONE modules, 14. conversion modules, 15. handover modules,
16. TV display module, 17. rear ends, 18. HFC amplification modules, 19. top box of digital machines, 20. power modules.
Specific implementation mode
Now by taking certain concentration viewing a set of live events of CCTV as an example, the explanation of system schema is carried out.Main signal uses existing
Some hfc plants, the central machine room signal light nearest by watching point in optical sender, optical cable transmission for cable TV to distance set
Receiver, optical signal is converted into radiofrequency signal by photoreceiver and reaches concentration viewing point through Coaxial Network, with top box of digital machine 19
After demodulation export two kinds of signals of HDMI high-definition interfaces and AV video and audios interface, be supplied to place to use large LED screen and 100 cun
Projector.Since optical cable and Coaxial Network ensure live events signal by longer aerial and buried routing to improve reliability
Completely, it needs to establish Hot Spare signal path.
The radio and television based on Multi net voting Hot Spare relay emergency system include communication module 12, photographing module 11,
IPHONE modules 13, conversion module 14, HFC amplification modules 18, top box of digital machine 19, handover module 15, TV display module 16,
Power module 20, HVA interfaces；The power module 20 is by LDO-5V regulator circuits, LDO-12V regulator circuits, 24V12AH lithiums
Battery, 24V extension battery interface compositions, main function are to provide 5V power supplys to IPHONE modules 13 and conversion module 14, provide
12V power supplys provide 24V to communication module 12, photographing module 11, top box of digital machine 19, handover module 15, TV display module 16
Power supply is to HFC amplification modules 18；The photographing module 11 is by camera, rotary head, WIFI interface, internal storage unit, preceding
Hold service unit composition；14 input terminal of the conversion module is Lightning interfaces, and output end is HDMI high-definition interfaces, VGA figures
As display interface and AUDIO-3.5MM audio interface；16 input terminal of TV display module is HDMI high-definition interfaces, VGA figures
As display interface and AUDIO-3.5MM audio interface, output end be HDMI high-definition interfaces, VGA images display interface and
AUDIO-3.5MM audio interface；The handover module 15 has A and B two-way input terminals, have per road input terminal HDMI high-definition interfaces,
VGA images display interface and AUDIO-3.5MM audio interface have output end all the way, output end to have HDMI high-definition interfaces, VGA figures
As display interface and AUDIO-3.5MM audio interface, using manual switching；The HVA interfaces are schemed by HDMI high-definition interfaces, VGA
As display interface, AUDIO-3.5MM audio interface, 5V power connection points, 12V power connection points, 24V power connection points, public
Ground connection sequentially rearranges from left to right；The communication module 12 is RJ45 interface widebands respectively there are four types of network insertion
WAN accesses, TDD-LTE 4G network insertions, FDD-LTE 4G network insertions, the access of WCDMA 3G networks；The communication module
12, the A input terminals of handover module 15, HFC amplification modules are accessed after IPHONE modules 13, conversion module 14 are sequentially connected in series
18, the B input terminals of handover module 15, the output end and TV of the handover module 15 are accessed after top box of digital machine 19 is connected in series with
Display module 16 is connected in series with；The communication module 12, IPHONE modules 13, conversion module 14, handover module 15, TV are shown
Module 16 is sequentially connected in series into hot standby channel；The HFC amplification modules 18, top box of digital machine 19, handover module 15, TV are aobvious
Show that module 16 is sequentially connected in series into main channel；The photographing module 11, communication module 12, IPHONE modules 13, conversion module
14, handover module 15, TV display module 16 are sequentially connected in series into camera channel.
In system, 12 main function of communication module is to provide stable signal chains for IPHONE modules 13, photographing module 11
Road realized from CCTV platform, paddy beans platform using broadband internet and obtains signal as the purpose of backup signal, signal link
Connectivity is crucial, and consideration will adapt to different places to use and the change in signal strength in different spaces, use Huawei B310
Router is as module core, and there are four types of network access modes to be based on RJ45 interface widebands WAN accesses, base for the communication module 12
It is accessed in TDD-LTE 4G network insertions, based on FDD-LTE 4G network insertions, based on WCDMA 3G networks, with the use of ground
Point actual selection, selects the access way of maximum rate, to ensure signal link quality, selected access after place to use is tested
The downlink of mode should be higher than that 10Mbps, time delay should be less than 70ms.The selection of IPHONE modules 13 IPHONE6S, IPHONE7,
It is a in IPHONE8, IPHONE X, IPAD4, while there are 64G or more in requirement, 13 main function of IPHONE modules is fortune
The specified application software of row includes CCTV APP, paddy beans APP, is exported by Lightning interfaces after decoding graphics/audio, through actual measurement
It is stable, overall reliability is very high.14 main function of conversion module is that the signal for exporting Lightning interfaces is converted into
The output signal of HDMI high-definition interfaces, VGA images display interface and AUDIO-3.5MM audio interface is used for and 17 equipment of rear end
Docking.Photographing module 11 is made of camera, rotary head, WIFI interface, internal storage unit, front end services unit, is made
Fluorite APP application software, main function are installed in IPHONE modules 13 simultaneously with fluorite C4S, C5S or C6C model video camera
It is the image of shooting to be sent to IPHONE modules 13 by WIFI, IPHONE modules 13 pass through after installing fluorite APP
Lightning interfaces export image and carry out signal behavior for handover module 15；The main function of power module 20 is to provide
5V power supplys needed for IPHONE modules 13 and conversion module 14, provide communication module 12, photographing module 11, top box of digital machine 19,
12V power supplys needed for handover module 15, TV display module 16 are supplied to the 24V power supplys needed for HFC amplification modules 18, power supply
24V12AH lithium battery groups built in module 20 and battery pack expansion interface improve power supply using LDO decompression voltage regulator structures
EMI performances, power module 20 can provide whole system and run 4 hours or more under no alternating current net state.
When system operation, main channel provides signal source through HFC amplification modules 18, top box of digital machine by HFC fiber-coaxial nets
19 are output to handover module 15, and TV display module 16 is monitored signal and provides three kinds of interfaces, including HDMI high definitions connect
Mouth, VGA images display interface and AUDIO-3.5MM audio interface include LED large-size screen monitors, projection to meet 17 equipment of different rear ends
The connection of machine needs, and normal condition provides graphics/audio signal using main channel to 17 equipment of rear end.Hot standby channel is by communication mould
Block 12 provides broadband internet channel, to ensure to CCTV platform, paddy beans bracket signal link connection smoothly, IPHONE modules
13, which open application software, uses CCTV APP or paddy beans APP, after selection target channel and image definition, IPHONE modules 13
It is output to handover module 15 after the converted module of signal 14 of Lightning interfaces output.When main channel occurs abnormal, use
For 15 manual switching of handover module to hot standby channel, signal restores unimpeded.
Camera channel is mainly used for the shooting, collecting to place to use image, and when operation opens the application of IPHONE modules 13
Image is exported by Lightning interfaces after software fluorite APP selection image definitions, switching is output to after converted module 14
Module 15.When needing place to use image to export to 17 equipment of rear end, manual switching is completed to operate to hot standby channel.
The radio and television based on Multi net voting Hot Spare of the present invention relay emergency system can realize live streaming letter with low input
Number Hot Spare, system structure is succinctly stable, effectively improves emergency response capabilities.
Claims (1)
1. a kind of radio and television based on Multi net voting Hot Spare relay emergency system, it is characterised in that:The system comprises communications
Module, photographing module, IPHONE modules, conversion module, HFC amplification modules, top box of digital machine, handover module, TV show mould
Block, power module, HVA interfaces；The power module is by LDO-5V regulator circuits, LDO-12V regulator circuits, 24V12AH lithiums
Battery, 24V extension battery interface compositions, main function are to provide 5V power supplys to IPHONE modules and conversion module, provide 12V electricity
Source provides 24V power supplys and amplifies mould to HFC to communication module, photographing module, top box of digital machine, handover module, TV display module
Block；The photographing module is made of camera, rotary head, WIFI interface, internal storage unit, front end services unit；It is described
Conversion module input terminal is Lightning interfaces, and output end is HDMI high-definition interfaces, VGA images display interface and AUDIO-
3.5MM audio interface；The TV display module input terminal is HDMI high-definition interfaces, VGA images display interface and AUDIO-
3.5MM audio interface, output end are HDMI high-definition interfaces, VGA images display interface and AUDIO-3.5MM audio interface；It is described
HVA interfaces are by HDMI high-definition interfaces, VGA images display interface, AUDIO-3.5MM audio interface, 5V power connection points, 12V electricity
Source tie point, 24V power connection points, common ground tie point sequentially rearrange from left to right；The handover module has A and B
Two-way input terminal has HDMI high-definition interfaces, VGA images display interface and AUDIO-3.5MM audio interface per road input terminal, has
Output end all the way, output end has HDMI high-definition interfaces, VGA images display interface and AUDIO-3.5MM audio interface, using hand
Dynamic switching；The communication module is that RJ45 interface widebands WAN is accessed, TDD-LTE 4G networks connect respectively there are four types of network insertion
Enter, FDD-LTE 4G network insertions, WCDMA 3G networks access；The communication module, IPHONE modules, conversion module are gone here and there successively
The A input terminals of handover module are accessed after connection connection, HFC amplification modules, top box of digital machine access the B of handover module after being connected in series with
Input terminal, output end and the TV display module of the handover module are connected in series with；The communication module, turns IPHONE modules
Mold changing block, handover module, TV display module are sequentially connected in series into hot standby channel；The HFC amplification modules, teaching machine top
Box, handover module, TV display module are sequentially connected in series into main channel；The photographing module, communication module, IPHONE moulds
Block, conversion module, handover module, TV display module are sequentially connected in series into camera channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452621.1A CN108418721B (en) | 2018-05-13 | 2018-05-13 | Broadcast television rebroadcast emergency system based on multi-network hot backup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810452621.1A CN108418721B (en) | 2018-05-13 | 2018-05-13 | Broadcast television rebroadcast emergency system based on multi-network hot backup |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108418721A true CN108418721A (en) | 2018-08-17 |
| CN108418721B CN108418721B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810452621.1A Active CN108418721B (en) | 2018-05-13 | 2018-05-13 | Broadcast television rebroadcast emergency system based on multi-network hot backup |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202077130U (en) * | 2011-05-17 | 2011-12-14 | 赵瑞金 | Weather forecast television consultation provincial meeting place system based on double current signal hot backup |
| CN102325245A (en) * | 2011-08-31 | 2012-01-18 | 深圳市迪威视讯股份有限公司 | Method and device for automatically switching lines of television conference system |
| CN104394349A (en) * | 2014-12-01 | 2015-03-04 | 大连科迪视频技术有限公司 | Warm backup multi-format switching system and method for video conference |
| CN105592348A (en) * | 2014-10-24 | 2016-05-18 | 北京海尔广科数字技术有限公司 | Automatic switching method for screen transmission signals and screen transmission signal receiver |
| CN208174708U (en) * | 2018-05-13 | 2018-11-30 | 刘俊杰 | Radio and television based on Multi net voting warm back-up relay emergency system |
-
2018
- 2018-05-13 CN CN201810452621.1A patent/CN108418721B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202077130U (en) * | 2011-05-17 | 2011-12-14 | 赵瑞金 | Weather forecast television consultation provincial meeting place system based on double current signal hot backup |
| CN102325245A (en) * | 2011-08-31 | 2012-01-18 | 深圳市迪威视讯股份有限公司 | Method and device for automatically switching lines of television conference system |
| CN105592348A (en) * | 2014-10-24 | 2016-05-18 | 北京海尔广科数字技术有限公司 | Automatic switching method for screen transmission signals and screen transmission signal receiver |
| CN104394349A (en) * | 2014-12-01 | 2015-03-04 | 大连科迪视频技术有限公司 | Warm backup multi-format switching system and method for video conference |
| CN208174708U (en) * | 2018-05-13 | 2018-11-30 | 刘俊杰 | Radio and television based on Multi net voting warm back-up relay emergency system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108418721B (en) | 2024-05-10 |
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