CN104010227A - IP digital television delay broadcasting and safety guaranteeing method - Google Patents
IP digital television delay broadcasting and safety guaranteeing method Download PDFInfo
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- CN104010227A CN104010227A CN201410266643.0A CN201410266643A CN104010227A CN 104010227 A CN104010227 A CN 104010227A CN 201410266643 A CN201410266643 A CN 201410266643A CN 104010227 A CN104010227 A CN 104010227A
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Abstract
The invention discloses an IP digital television delay broadcasting and safety guaranteeing method. A delay broadcasting step includes the processes that signal source addresses of channels, network cards for receiving source signals, delay duration, signal output addresses and signal output network cards are set; an IP code stream delayer receives the source signals, automatic judgment is conducted, and data are cached in a memory or a hard disk; the data are stored in a channel data queue of the memory or the hard disk, and sending time required after data delay is calculated; when time reaches the required sending time of a head end data package of the channel data queue, data are output from the designated signal output network cards. A safety guaranteeing step includes the processes that illegal data are abandoned and hot-standby is conducted. According to the system resource condition and the designated delay duration, automatic judgment is conducted, the data are cached in the memory or the hard disk, and long-time delay of a large number of channels is supported; IP signal sources and rear-end devices are separated through network physical isolation, and network safety is guaranteed; through hot-standby, seamless switching is achieved, and broadcasting safety is more effectively guaranteed.
Description
Technical field
The present invention relates to IP digital broadcast television field and network safety filed, particularly relate to a kind of method for IP Digital Television delay broadcasting and safety guarantee.
Background technology
In recent years, after broadcast television industry realizes digitlization substantially, IPization comes one after another.IPization is with respect to traditional SDI and ASI, has that cost is low, long transmission distance, layout and an advantage such as easy to maintenance.The playing flow path of the project preference IPization of many new construction, so the broadcast corollary equipment of IPization arises at the historic moment, to improve the general function of IP broadcast.
A problem of coming along with IP is: network security reduces.Tradition SDI and ASI broadcast in environment, and signal is by special coaxial cable load, and equipment room can not infect virus, and network security problem is difficult to threaten signal transmission.Wait Cyberthreat to be easy to propagate or interference signal by netting twine but the signal transmission medium that IP broadcasts is but ethernet line, and the transceiver of signal is also common Ethernet card, virus.For the problem of IP the Digital Television Station network security, SARFT(The State Administration of Radio and Television) has also proposed clear and definite requirement, and IP the Digital Television Station network security has become the new direction of broadcast television industry research at present.
In addition, SARFT(The State Administration of Radio and Television) requires the necessary delay broadcasting of part live telecast, and existing IP Digital Television delay broadcasting method mainly contains two kinds: the signal lag based on internal memory and the signal lag based on hard disk.
(1) signal lag based on internal memory: utilize memory cache signal, the signal duration of buffer memory is set delay duration in internal memory.
Advantage: memory read-write number of times is unrestricted, read-write can not affect the internal memory life-span repeatedly;
Shortcoming: memory size is less, the port number of support is less, delay duration is shorter.
Be only applicable to the scene of time delay port number less (being less than 6 tunnels) and delay duration shorter (being less than 20 minutes).
(2) signal lag based on hard disk: utilize dedicated hard disk buffered signal, the signal duration of buffer memory is set delay duration in hard disk.
Advantage: the port number of support is more, delay duration is grown (tens of hours);
Shortcoming: hard disk is read and write repeatedly slightly to be affected the life-span, and the life-span can be lower than internal memory.
Be only applicable to time delay passage more (tens of road) and delay duration long (tens of hours even the extreme case of tens of days).
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of novel method for IP Digital Television delay broadcasting and safety guarantee is provided, according to the delay duration of system resource condition and appointment, automatic decision in internal memory or hard disk, is supported the long-time time delay of a large amount of passages by data buffer storage; Network physical isolation IP signal source and rear end equipment, guarantee network security; Two-node cluster hot backup brings more effective guarantee for broadcasting safety.
The object of the invention is to be achieved through the following technical solutions: a kind of method for IP Digital Television delay broadcasting and safety guarantee, it comprises a delay broadcasting step and a safety guarantee step:
Described delay broadcasting step comprises following sub-step:
S101: the signal source address of each passage, network interface card, delay duration, the signal OPADD for reception sources signal and the network interface card of exporting for signal are set;
S102:IP code stream delayer receives source signal, according to the delay duration of system resource condition and appointment, automatic decision by data buffer storage in internal memory or hard disk;
S103: save the data in the channel data queue of internal memory or hard disk, and answer transmitting time after calculated data time delay;
S104: in the time that time arrival channel data queue heads end data bag is answered transmitting time, from the signal output network interface card output data of specifying;
Described safety guarantee step comprises:
(1) abandon invalid data: while receiving invalid data, invalid data is abandoned to invalid data storehouse;
(2) two-node cluster hot backup: standby host and main frame receive the packet that signal source sends simultaneously and be cached to internal memory or hard disk in, as standby host detects that host work is normal, equipment transmitted signal to the back-end not in the time that transmitting time is answered in arrival, just removes stale data; In the time that standby host detects that main frame is delayed machine or operation irregularity, standby host is taken over main frame equipment transmitted signal to the back-end, realizes seamless switching.
A kind of method for IP Digital Television delay broadcasting and safety guarantee, also comprise a network physical isolation step based on many network interface cards: each channel setting is input and output network interface independently, between network interface, only allow legal IP digital television signal to pass through, other any data all cannot be passed through.
The invention has the beneficial effects as follows:
1) realize the breakthrough of delay broadcasting method, greatly promoted effective rate of utilization and the Transmission Network safety of equipment, met the various demands of user to delay broadcasting;
2), according to the delay duration of system resource condition and appointment, automatic decision in internal memory or hard disk, is supported the long-time time delay of a large amount of passages by data buffer storage;
3) network physical isolation IP signal source and rear end equipment, the existence of having stopped virus and other Cyberthreat in signals transmission, guarantees network security;
4) two-node cluster hot backup realizes seamless switching, brings more effective guarantee for broadcasting safety;
5) accelerated IP and broadcasted the process that conventional digital is broadcasted that substitutes, IP code stream delay technique contributes to the traditional time-delay method of IP broadcast replacement to complete live delayed tasks, can further pull open the gap that IP broadcasts and conventional digital is broadcasted.
Brief description of the drawings
Fig. 1 is system configuration schematic diagram of the present invention;
Fig. 2 is delay broadcasting flow chart of steps of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of method for IP Digital Television delay broadcasting and safety guarantee, it comprises a delay broadcasting step and a safety guarantee step:
As shown in Figure 2, delay broadcasting step comprises following sub-step:
S101: the signal source address of each passage, network interface card, delay duration, the signal OPADD for reception sources signal and the network interface card of exporting for signal are set by configuration client web page;
S102:IP code stream delayer receives source signal, according to the delay duration of system resource condition and appointment, automatic decision by data buffer storage in internal memory or hard disk;
S103: save the data in the channel data queue of internal memory or hard disk, and answer transmitting time after calculated data time delay;
S104: in the time that time arrival channel data queue heads end data bag is answered transmitting time, from the signal output network interface card output data of specifying;
Described safety guarantee step comprises:
(1) abandon invalid data: while receiving invalid data, invalid data is abandoned to invalid data storehouse;
(2) two-node cluster hot backup: standby host and main frame receive the packet that signal source sends simultaneously and be cached to internal memory or hard disk in, as standby host detects that host work is normal, equipment transmitted signal to the back-end not in the time that transmitting time is answered in arrival, just removes stale data; In the time that standby host detects that main frame is delayed machine or operation irregularity, standby host is taken over main frame equipment transmitted signal to the back-end, realizes seamless switching.
A kind of method for IP Digital Television delay broadcasting and safety guarantee, also comprise a network physical isolation step based on many network interface cards: each channel setting is input and output network interface independently, between network interface, only allow legal IP digital television signal to pass through, other any data all cannot be passed through.
The above is only the preferred embodiment of the present invention, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, amendment and environment, and can, in contemplated scope described herein, change by technology or the knowledge of above-mentioned instruction or association area.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection range of claims of the present invention.
Claims (2)
1. for a method for IP Digital Television delay broadcasting and safety guarantee, it is characterized in that: it comprises a delay broadcasting step and a safety guarantee step:
Described delay broadcasting step comprises following sub-step:
S101: the signal source address of each passage, network interface card, delay duration, the signal OPADD for reception sources signal and the network interface card of exporting for signal are set;
S102:IP code stream delayer receives source signal, according to the delay duration of system resource condition and appointment, automatic decision by data buffer storage in internal memory or hard disk;
S103: save the data in the channel data queue of internal memory or hard disk, and answer transmitting time after calculated data time delay;
S104: in the time that time arrival channel data queue heads end data bag is answered transmitting time, from the signal output network interface card output data of specifying;
Described safety guarantee step comprises:
(1) abandon invalid data: while receiving invalid data, invalid data is abandoned to invalid data storehouse;
(2) two-node cluster hot backup: standby host and main frame receive the packet that signal source sends simultaneously and be cached to internal memory or hard disk in, as standby host detects that host work is normal, equipment transmitted signal to the back-end not in the time that transmitting time is answered in arrival, just removes stale data; In the time that standby host detects that main frame is delayed machine or operation irregularity, standby host is taken over main frame equipment transmitted signal to the back-end, realizes seamless switching.
2. a kind of method for IP Digital Television delay broadcasting and safety guarantee according to claim 1, it is characterized in that: also comprise a network physical isolation step based on many network interface cards: each channel setting is input and output network interface independently, between network interface, only allow legal IP digital television signal to pass through, other any data all cannot be passed through.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN104010227A true CN104010227A (en) | 2014-08-27 |
| CN104010227B CN104010227B (en) | 2017-11-03 |
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Citations (4)
| 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系统分公司 | 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 |
| CN101296323A (en) * | 2007-04-29 | 2008-10-29 | 北京同步科技有限公司 | Lossless time-delay broadcasting system |
| US20110090851A1 (en) * | 2008-05-15 | 2011-04-21 | Nortel Networks Limited | Method and System for Transmission of Fragmented Packets on a Packet-Based Communication Network |
-
2014
- 2014-06-16 CN CN201410266643.0A patent/CN104010227B/en active Active
Patent Citations (4)
| 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系统分公司 | Security isolation apparatus for unidirectional connection network |
| CN101296323A (en) * | 2007-04-29 | 2008-10-29 | 北京同步科技有限公司 | Lossless time-delay broadcasting system |
| CN101184085A (en) * | 2007-12-13 | 2008-05-21 | 华为技术有限公司 | IP telephone terminal and safety communication method thereof |
| US20110090851A1 (en) * | 2008-05-15 | 2011-04-21 | Nortel Networks Limited | Method and System for Transmission of Fragmented Packets on a Packet-Based Communication Network |
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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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Date of cancellation: 20220113 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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Date of cancellation: 20220801 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 |