CN104010227B - It is a kind of to be used for the method for IP DTVs delay broadcasting and safety guarantee - Google Patents
It is a kind of to be used for the method for IP DTVs delay broadcasting and safety guarantee Download PDFInfo
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- CN104010227B CN104010227B CN201410266643.0A CN201410266643A CN104010227B CN 104010227 B CN104010227 B CN 104010227B CN 201410266643 A CN201410266643 A CN 201410266643A CN 104010227 B CN104010227 B CN 104010227B
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Abstract
It is used for the method for IP DTVs delay broadcasting and safety guarantee the invention discloses a kind of, delay broadcasting step includes：The network interface card of signal source address, the network interface card of reception source signal, delay duration, signal output address and the signal output of each passage is set；IP code stream delayers receive source signal, and automatic decision is by data buffer storage in internal memory or hard disk；In the channel data queue for saving the data in internal memory or hard disk, and calculate and should send the time after data delay；When the time, which reaches channel data queue head-end data bag, to send the time, from specified signal output network interface card output data；Safety guarantee step includes：Abandon invalid data and two-node cluster hot backup.Data buffer storage in internal memory or hard disk, is supported the long-time delay of a large amount of passages by the present invention according to system resource condition and the delay duration specified, automatic decision；Network physical isolates IP signal sources and rear end equipment, guarantees network security；Seamless switching is realized in two-node cluster hot backup, is more effectively ensured to broadcast safety belt.
Description
Technical field
It is more particularly to a kind of to be used for IP numeral electricity the present invention relates to IP digital broadcast television field and network safety filed
Depending on delay broadcasting and the method for safety guarantee.
Background technology
In recent years, after broadcast television industry realizes digitlization substantially, IPization comes one after another.IPization is relative to traditional
SDI and ASI, possess low cost, long transmission distance, arrangement and it is easy to maintenance the advantages of.The project preference IPization of many new construction
Playing flow path, so the broadcast corollary equipment of IPization arises at the historic moment, to improve the general function of IP broadcasts.
With IP, a next problem is：Network security is reduced.Traditional SDI and ASI are broadcasted in environment, and signal is by special
Coaxial cable load, equipment room will not infect virus, and network security problem is difficult to threaten signal transmission.But what IP was broadcasted
Signal transmission medium is ethernet line, and the transceiver of signal is also common Ethernet card, and the Cyberthreat such as virus holds very much
Easily propagated or interference signal by netting twine.The problem of for IP the Digital Television Station network securitys, SARFT(The State Administration of Radio and Television) it is also proposed that
Clearly require, IP the Digital Television Stations network securitys turns into the new direction of broadcast television industry research at present.
In addition, SARFT(The State Administration of Radio and Television) requires necessary delay broadcasting live to partial TV, existing IP DTVs delay is broadcast
Going out method mainly has two kinds：Signal delay based on internal memory and the signal delay based on hard disk.
（1）Signal delay based on internal memory：Using memory cache signal, the signal duration cached in internal memory is set
The delay duration put.
Advantage：Memory read-write number of times is unrestricted, and read-write repeatedly does not interfere with the internal memory life-span；
Shortcoming：Memory size is smaller, and the port number of support is less, delay duration is shorter.
It is only applicable to delay path number less（Less than 6 tunnels）It is shorter with delay duration（Less than 20 minutes）Scene.
（2）Signal delay based on hard disk：Using dedicated hard disk buffered signal, the signal duration cached in a hard disk is
Set delay duration.
Advantage：The port number of support is more, delay duration is longer（Tens of hours）；
Shortcoming：Hard disk is read and write repeatedly slightly has influence on the life-span, and the life-span can be less than internal memory.
It is only applicable to delay path more（Tens of roads）It is longer with delay duration（The extreme feelings of even tens of days tens of hours
Condition）.
The content of the invention
Broadcast it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of new IP DTVs delay that is used for
Go out and safety guarantee method, according to system resource condition and the delay duration specified, automatic decision is by data buffer storage in internal memory
Or hard disk, support the long-time delay of a large amount of passages；Network physical isolates IP signal sources and rear end equipment, guarantees network security；
Two-node cluster hot backup more effectively ensures to broadcast safety belt.
The purpose of the present invention is achieved through the following technical solutions：One kind is used for IP DTVs delay broadcasting and peace
The method of all risk insurance barrier, it includes a delay broadcasting step and a safety guarantee step：
Described delay broadcasting step includes following sub-step：
S101：The signal source address of each passage, the network interface card for receiving source signal, delay duration, signal output are set
Location and the network interface card for signal output；
S102：IP code stream delayers receive source signal, according to system resource condition and the delay duration specified, sentence automatically
Break data buffer storage in internal memory or hard disk；
S103：In the channel data queue for saving the data in internal memory or hard disk, and calculate should send after data delay
Time；
S104：When the time, which reaches channel data queue head-end data bag, to send the time, from specified signal output net
Card output data；
Described safety guarantee step includes：
（1）Abandon invalid data：When receiving invalid data, invalid data is abandoned to invalid data storehouse；
（2）Two-node cluster hot backup：Standby host and the main frame packet that reception signal source is sent simultaneously are simultaneously cached in internal memory or hard disk,
As standby host is detected, host work is normal, and when arrival should send the time, end equipment sends signal backward, simply removes
Issue evidence；When standby host detect main frame delay machine or operation irregularity when, standby host take over main frame backward end equipment send signal, realize nothing
Seaming and cutting are changed.
A kind of method for IP DTVs delay broadcasting and safety guarantee, in addition to one the network based on many network interface cards
Physical isolation step：Legal IP DTVs are only allowed to believe between the independent input of each passage setting and output network interface, network interface
Number pass through, other any data can not all pass through.
The beneficial effects of the invention are as follows：
1）The breakthrough of delay broadcasting method is realized, the effective rate of utilization and Transmission Network peace of equipment is greatly improved
Entirely, various demands of the user to delay broadcasting are met；
2）According to system resource condition and the delay duration specified, automatic decision is by data buffer storage in internal memory or hard disk, branch
Hold the long-time delay of a large amount of passages；
3）Network physical isolates IP signal sources and rear end equipment, has prevented viral and other networks in signals transmission
The presence of threat, guarantees network security；
4）Seamless switching is realized in two-node cluster hot backup, is more effectively ensured to broadcast safety belt；
5）Accelerate IP and broadcast the process that conventional digital is broadcasted that substitutes, IP code stream delay techniques contribute to IP broadcast substitutions to pass
Time-delay method of uniting completes live delayed tasks, can further pull open the gap that IP is broadcasted and conventional digital is broadcasted.
Brief description of the drawings
Fig. 1 is present system structural representation；
Fig. 2 is delay broadcasting flow chart of steps of the present invention.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to
It is as described below.
As shown in figure 1, a kind of be used for the method for IP DTVs delay broadcasting and safety guarantee, it broadcasts including a delay
Go out step and a safety guarantee step：
As shown in Fig. 2 delay broadcasting step includes following sub-step：
S101：By configuring client web page, the signal source address of each passage, the net for receiving source signal are set
Card, delay duration, signal output address and the network interface card for signal output；
S102：IP code stream delayers receive source signal, according to system resource condition and the delay duration specified, sentence automatically
Break data buffer storage in internal memory or hard disk；
S103：In the channel data queue for saving the data in internal memory or hard disk, and calculate should send after data delay
Time；
S104：When the time, which reaches channel data queue head-end data bag, to send the time, from specified signal output net
Card output data；
Described safety guarantee step includes：
（1）Abandon invalid data：When receiving invalid data, invalid data is abandoned to invalid data storehouse；
（2）Two-node cluster hot backup：Standby host and the main frame packet that reception signal source is sent simultaneously are simultaneously cached in internal memory or hard disk,
As standby host is detected, host work is normal, and when arrival should send the time, end equipment sends signal backward, simply removes
Issue evidence；When standby host detect main frame delay machine or operation irregularity when, standby host take over main frame backward end equipment send signal, realize nothing
Seaming and cutting are changed.
A kind of method for IP DTVs delay broadcasting and safety guarantee, in addition to one the network based on many network interface cards
Physical isolation step：Legal IP DTVs are only allowed to believe between the independent input of each passage setting and output network interface, network interface
Number pass through, other any data can not all pass through.
Described above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change does not depart from the spirit and scope of the present invention, then all should appended claims of the present invention protection domain
It is interior.
Claims (1)
1. a kind of be used for the method for IP DTVs delay broadcasting and safety guarantee, it includes a delay broadcasting step and one
Safety guarantee step；
Described safety guarantee step includes：
（1）Abandon invalid data：When receiving invalid data, invalid data is abandoned to invalid data storehouse；
（2）Two-node cluster hot backup：Standby host and the main frame packet that reception signal source is sent simultaneously are simultaneously cached in internal memory or hard disk, such as standby
Machine examination measures host work normally, and when arrival should send the time, end equipment sends signal backward, simply removes issue
According to；When standby host detect main frame delay machine or operation irregularity when, standby host take over main frame backward end equipment send signal, realize without seaming and cutting
Change；
Methods described also includes one the network physical isolation step based on many network interface cards：Each passage sets independent input and defeated
Going out between network interface, network interface only allows legal IP digital television signals to pass through, and other any data can not all pass through；
It is characterized in that：Described delay broadcasting step includes following sub-step：
S101：Set the signal source address of each passage, the network interface card for receiving source signal, delay duration, signal output address and
Network interface card for signal output；
S102：IP code stream delayers receive source signal, and according to system resource condition and the delay duration specified, automatic decision will
Data buffer storage supports the long-time delay of a large amount of passages in internal memory or hard disk；
S103：In the channel data queue for saving the data in internal memory or hard disk, and calculate and should send the time after data delay；
S104：It is defeated from specified signal output network interface card when the time, which reaches channel data queue head-end data bag, to send the time
Go out data.
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| CN201410266643.0A CN104010227B (en) | 2014-06-16 | 2014-06-16 | It is a kind of to be used for the method for IP DTVs delay broadcasting and safety guarantee |
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| CN201410266643.0A CN104010227B (en) | 2014-06-16 | 2014-06-16 | It is a kind of to be used for the method for IP DTVs delay broadcasting and safety guarantee |
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| CN104010227B true CN104010227B (en) | 2017-11-03 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296323A (en) * | 2007-04-29 | 2008-10-29 | 北京同步科技有限公司 | Lossless time-delay broadcasting system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2684479Y (en) * | 2004-03-31 | 2005-03-09 | 南京南瑞集团公司信息***分公司 | Security isolation apparatus for unidirectional connection network |
| CN101184085A (en) * | 2007-12-13 | 2008-05-21 | 华为技术有限公司 | IP telephone terminal and safety communication method thereof |
| CN102100036A (en) * | 2008-05-15 | 2011-06-15 | 北方电讯网络有限公司 | Method and system for transmission of fragmented packets on a packet-based communication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101296323A (en) * | 2007-04-29 | 2008-10-29 | 北京同步科技有限公司 | Lossless time-delay broadcasting system |
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Denomination of invention: IP digital television delay broadcasting and safety guaranteeing method Effective date of registration: 20200716 Granted publication date: 20171103 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU ZHUOYUAN SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2020980004076 |
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Denomination of invention: A method for IP digital TV delay broadcasting and security guarantee Effective date of registration: 20220124 Granted publication date: 20171103 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU ZHUOYUAN SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2022980000838 |
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Denomination of invention: A method for delayed broadcast of IP digital TV and safety guarantee Effective date of registration: 20220815 Granted publication date: 20171103 Pledgee: Chengdu SME financing Company Limited by Guarantee Pledgor: CHENGDU ZHUOYUAN SCIENCE & TECHNOLOGY CO.,LTD. Registration number: Y2022980012457 |
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