CN101431648A - Cable television VOD backup method, system and equipment - Google Patents
Cable television VOD backup method, system and equipment Download PDFInfo
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Abstract
The invention discloses a backup method, system and device of a CATV VOD which belongs to the CATV technical field. The method includes steps as follows: a broadcast management server obtains system state information and user state information of the broadcast server, transmits the system state information and backups the user state information; a monitor server receives and analysis the system state information, and judges the broadcast server whether having fault according with the system state information; if fault exist, the monitor server transmits a switch indication to the broadcast management server; the broadcast management server receives the switch indication, executes broadcast operation translation of the main-backup broadcast server according with the user state information; the monitor server receives a finish indication, closes the server broadcast terminal, and opens the broadcast server terminal. The system comprises: the broadcast server, the broadcast management server and the monitor server. The invention can detect system fault in all directions, finish the broadcast operation backup, and reduce the system cost.
Description
Technical field
The present invention relates to the cable TV technical field, particularly a kind of method of cable television VOD backup, system and equipment.
Background technology
Along with the commercialization of cable television VOD (Video On Demand, video request program), the stability of a system becomes the key issue of VOD.Yet, stable again system also can't avoid event of failure, for example operating system failure, network failure, broadcast system fault etc., therefore, when taking place, enables event of failure back-up system neatly, fast reaction is controlled at the influence of event of failure to the user in the minimum scope, becomes the problem that all cable television VODs will be faced.
At present, the pattern of VOD backup comprises activation/standby mode, two enable modes, cluster mode.
Activation/standby mode, promptly a DBS (Digital Video Broadcastingt Server, broadcasting server) is in running order, a DBS is in stand-by state, when in running order DBS broke down, standby DBS began to enter operating state, took over the work of DBS.
Two enable modes, i.e. backup mode one to one, active and standby DBS is simultaneously in running order, and when main DBS broke down, standby DBS can directly take over the work of main DBS.
Promptly there are a plurality of main DBS in cluster mode, and a standby DBS is a coordination between each main DBS, and simultaneously in running order, and standby DBS is ready, and any one breaks down among the main DBS, and standby DBS takes over the work of fault master DBS.The current cluster pattern adopts acts on behalf of regulation technique, and each main DBS disposes an acting server, and standby DBS disposes supervision center.Each acting server sends to supervision center with the system status information of main DBS and the state information of broadcast service, when a main DBS fault, proxy server program at first will stop the operation of this main DBS, and inform supervision center, supervision center then starts standby DBS, the broadcast state that the acting server of operational failure master DBS is sent for the last time broadcasts recovery, takes over the work of fault master DBS.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
For the radio, TV and film industries that have huge video network, the demand of video DBS is very big, in the prior art, generally adopt three kinds of patterns to carry out VOD backup under the fault, wherein activation/standby mode and two enable mode are backup mode one to one, therefore, have increased system cost; Adopt the cluster mode of acting on behalf of regulation technique in addition, for each DBS Configuration Agent server one to one, communicate by letter with supervision center by acting server, if DBS operating system or communication network break down, acting server can't be communicated by letter with supervision center, may cause the network confusion, thereby can't be to fault DBS precise monitoring, cause supervision center can't determine whether DBS stops to broadcast, occur active and standby two situations that DBS broadcasts simultaneously in the network, influence normally watching of user.
Summary of the invention
In order to reduce system cost, the complete detection system failure is in time finished the broadcast service backup, and the embodiment of the invention provides a kind of method, system and equipment of cable television VOD backup.Described technical scheme is as follows:
A kind of method of cable television VOD system backup, described method comprises:
Broadcast management server obtains the system status information and the user state information of broadcasting server, transmits described system status information, and backs up described user state information;
Monitoring server receives and analyzes described system status information, judges according to described system status information whether described broadcasting server exists fault; If there is fault in described broadcasting server, described monitoring server sends switching command to described broadcast management server;
Described broadcast management server receives described switching command, according to the described user state information of backup in described broadcast management server, carries out active and standby broadcasting server and broadcasts professional translation and be sent completely instruction to described monitoring server;
Described monitoring server receives the described instruction of finishing, and closes described broadcasting server and broadcasts port, opens standby broadcasting server and broadcasts port.
A kind of cable television VOD system, described system comprises:
Broadcasting server is used for transmitting system state information and user state information;
Broadcast management server, be used to obtain the described system status information and the described user state information of described broadcasting server, transmit described system status information, back up described user state information, and receive the switching command that monitoring server sends, according to the described user state information of backup in described broadcast management server, carry out active and standby broadcasting server and broadcast professional translation and be sent completely instruction to described monitoring server;
Monitoring server, be used for receiving and analyzing described system status information, judge according to described system status information whether described broadcasting server exists fault, if there is fault in described broadcasting server, described monitoring server sends described switching command to described broadcast management server; What receive that described broadcast management server sends describedly finishes instruction, closes described broadcasting server and broadcasts port, opens standby broadcasting server and broadcasts port.
A kind of broadcast management server specifically comprises:
Receiving element is used to receive the switching command that system status information, user state information and the monitoring server of broadcasting server send;
Backup units is used to back up the described user state information that described receiving element receives;
Switch unit is used for according to described user state information, carries out active and standby broadcasting server and broadcasts professional translation;
Transmitting element is used to send the described system status information that described receiving element receives, and when described switch unit is finished switching, is sent completely instruction to described monitoring server.
A kind of monitoring server specifically comprises:
Receiving element, the system status information and the broadcast management server that are used to receive broadcasting server are finished the instruction of finishing of sending when switching;
Judging unit is used to analyze described system status information, judges according to described system status information whether described broadcasting server exists fault;
Transmitting element is used under the situation of described broadcasting server fault, sends described switching command to described broadcast management server;
Performance element is used under the situation of described broadcasting server fault, closes described broadcasting server and broadcasts port, opens standby broadcasting server simultaneously and broadcasts port.
The embodiment of the invention receives the system status information and the user state information of broadcasting server by broadcast management server, the user state information of backing up in realtime, and system status information is packaged into test pack sends, by monitoring server to the accepting state of test pack or monitoring server analysis result to test pack, judge whether current broadcasting server exists fault, thereby the detection system fault is finished the broadcast service backup in time all sidedly, and then has reduced system cost.
Description of drawings
Fig. 1 is the method flow diagram of the cable television VOD backup that provides of the embodiment of the invention;
Fig. 2 is the structural topology figure of the cable television VOD backup system that provides of the embodiment of the invention 1;
Fig. 3 is the method flow diagram of the cable television VOD backup that provides of the embodiment of the invention 1;
Fig. 4 is the equipment structure chart of the cable television VOD backup that provides of the embodiment of the invention 2;
Fig. 5 is the structure chart of a kind of broadcast management server of providing of the embodiment of the invention 3;
Fig. 6 is the structure chart of a kind of monitoring server of providing of the embodiment of the invention 4.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, the embodiment of the invention provides a kind of method of cable television VOD backup, comprising:
101: broadcast management server obtains the system status information and the user state information of broadcasting server, repeater system state information, and backup user state information;
102: monitoring server receives and the analytical system state information, judges according to system status information whether broadcasting server exists fault; If there is fault in broadcasting server, monitoring server sends switching command to broadcast management server;
103: broadcast management server receives switching command, according to the user state information of backup in broadcast management server, carries out active and standby broadcasting server and broadcasts professional translation and be sent completely and instruct to monitoring server;
104: monitoring server finishes receiving instruction, closes broadcasting server and broadcasts port, opens standby broadcasting server and broadcasts port.
The embodiment of the invention receives system status information and the user state information of DBS by broadcast management server, the user state information of backing up in realtime, and system status information is packaged into test pack sends, by monitoring server to the accepting state of test pack or monitoring server analysis result to test pack, judge whether current DBS exists fault, if fault, monitoring server sends switching command, carry out the professional translation of broadcast by broadcast management server, after broadcast translation business is finished, monitoring server is closed current DBS broadcast port and is opened standby DBS broadcast port simultaneously, thereby detection system fault all sidedly, finish the broadcast service backup in time, and then reduced system cost.
The centralized storage system of a cable television VOD comprises several DBS, standby DBS, monitoring server, broadcast management server and a switch device.Any one DBS breaks down, and system moves to the work that standby DBS takes over fault DBS with business, describes in detail with a specific embodiment below.
In the embodiment of the invention, the centralized storage system of supposing a cable television VOD comprises four DBS, a standby DBS, a monitoring server, a broadcast management server and two gigabit networking switches, wherein monitoring server and broadcast management server are in same zone, and physical interface and connected mode are as shown in Figure 2.
Referring to Fig. 3, the embodiment of the invention provides a kind of method of cable television VOD backup, specifically comprises:
301: the user sends the video request program request in client;
This client can be for having the TV set-top box of remote controller, the user sends the video request program request by remote controller, TV set-top box receiver, video order request, and this video request program request is modulated into radiofrequency signal by modulating equipment, report by cable TV network;
Wherein, the video request program request package contains IC (Integrate Circuit, integrated circuit) card number and request program ID (Identification, the ID of user's TV set-top box;
302: broadcast management server receiver, video order request, specify broadcast Destination MAC (the Media Access Control of DBS according to the different regional frequency of video request program request, medium access control) address, and will have the video request program request of broadcasting destination-mac address and be uploaded to first switch;
Wherein, first switch is used for finishing the communication between the server;
Broadcast management server is connected to first switch by twisted-pair feeder;
303: the first switches receive and have the video request program request of broadcasting destination-mac address, and exchange to each corresponding D BS according to broadcasting destination-mac address;
304: corresponding D BS receiver, video order request, extract the video frequency request program of local storage, be sent to second switch, system status information and the user state information with this DBS sends to first switch simultaneously, reports broadcast management server by first switch;
Second switch is as the broadcast of video frequency request program;
System status information comprises DBS system running state information and DBS internal fault information;
Operation condition of server information such as wherein, DBS system running state packets of information purse rope card can't be opened, video multiplex stream exceeds standard; DBS internal fault information can represent that this internal fault error code has reflected the DBS internal fault status with the internal fault error code, if error code is 0, then there is not fault in DBS inside; If be other numerical value, then there is fault in DBS inside, and the fault different according to different numeric representations, wherein internal fault comprise that the DBS disk array can't read, DBS disk low memory etc.;
User state information comprises and has the user video order request of broadcasting destination-mac address and according to the broadcast state information of this request DBS, comprise the time-code information of each video frequency program of broadcast, is used for playing programs and recovers;
Video frequency request program is stored in the DBS local hard drive array with TS (Transport Stream, transport stream) form; TS specifically comprises packet header, self adaptation district and bag data 3 parts, and each packet length is 188B, and its middle wrapping head length is 4B, and self adaptation district and bag data length are 184B.TS packet header is the identification division of TS, for example indicate the beginning of a TS with 0X47, TS packet header comprises other important informations relevant with current TS, PID (Proportion Integration Differentiation for example, proportion integration differentiation), continuity_counter, adaption_field_control information, particularly
PID represents the data content that current TS is carried, for example valid data, SI or PSI information;
Continuity_counter refers to the continuous counter value between the TS with same pid value;
Adaption_field_control represents that current TS carries the situation of adjusting field and pay(useful) load, and wherein pay(useful) load is totally 2, and first bit representation has or not the adjustment field, and second bit representation has or not pay(useful) load;
Wherein, Payload 184B is defined as:
struct?TestPacketStrcut_t
{
dbs_id?2?uimsbf
error_code?2?uimsbf
}
305: broadcast management server receives system status information and the user state information of each DBS, system status information with each DBS is packaged into test pack respectively, and test pack sent to first switch, the User Status state of real-time each DBS of local backup of broadcast management server simultaneously;
Wherein, the broadcast destination-mac address of broadcast management server nominative testing bag requires DBS to broadcast on the network interface card of appointment;
Test pack is to be supporting body with the Ethernet data bag, and the valid data district is the test packet of TS form, and test pack packages according to the Ethernet agreement, is distinguished with different MAC Address, comprises to broadcast destination-mac address and system status information; The test pack transmission frequency be 500 milliseconds once;
If DBS breaks down inside, for example disk array such as can't read at fault, and DBS reports broadcast management server, and broadcast management server is revised as the disk failure error code with this fault in the test pack that issues;
306: the first switch acceptance test bags exchange to each corresponding D BS port and return to each DBS respectively according to the broadcast destination-mac address of test pack;
307: corresponding D BS acceptance test bag, with the test pack information multiplexing and send to second switch;
In simulated television VOD, same frequency is supported a cover video frequency request program, and the embodiment of the invention is based on the TV VOD of numeral, and same frequency can be supported a plurality of video frequency request programs, and test pack is adopted multiplex technique, improves information utilization;
308: the second switches exchange to the policing port of appointment with test pack, and send to monitoring server by policing port;
Wherein, the policing port of second switch is 17 ports in the present embodiment, is responsible for all DBS of transmission and the test pack that has DBS, and monitoring server is connected the acceptance test bag by twisted-pair feeder with 17 ports of second switch;
309:, think that then this DBS breaks down if monitoring server can not receive the test pack that DBS sends in Preset Time; If monitoring server receives test pack, then analytical test bag content, for example the system running state information of DBS and the error message of DBS internal fault, detect DBS and broadcast whether there is fault, if detecting some DBS breaks down, then carry out 310, otherwise carry out 313;
Particularly, if monitoring server can not receive the test pack that some DBS send in 1s, or comprise fault message in the test pack of receiving, for example disk array fault message, memory failure information, system resource failure information etc. think that all this DBS breaks down;
310: monitoring server sends switching command to broadcast management server;
Particularly, monitoring server sends to broadcast management server by TCP (Transmission Control Protocol, transmission control protocol) with switching command;
311: broadcast management server receives switching command, finishes active and standby DBS and broadcasts professional translation, and be sent completely instruction to monitoring server;
Wherein, broadcast management server will be finished instruction by TCP and send to monitoring server;
Particularly, broadcast management server is by VBS (Vido Broadcast System, broadcast control supervisor) with the user state information of backup described in the step 305 in broadcast management server, for example the broadcast state information of user video order request and DBS is transmitted to standby DBS, is used for the recovery that program broadcasts; Realize that active and standby DBS broadcasts professional translation, this process is no more than 10 seconds;
312: monitoring server finishes receiving instruction, and logins second switch by the telnet agreement, and the switch ports themselves of closing fault DBS correspondence is opened the switch ports themselves of standby DBS correspondence simultaneously, returns step 304;
In the present embodiment, monitoring server is connected with 23 ports of second switch by the switch control line, carries out and closes or open switch ports themselves;
Switch received the request program video flowing that DBS broadcasts in 313: the second, and send on corresponding second switch ports themselves according to broadcasting destination-mac address, second switch exchanges in corresponding EQAM (EdgeQuadrature Amplitude Modulation, the quadrature amplitude modulation) modulator;
Wherein, the request program video flowing is according to the Ethernet agreement, with the broadcast that packages of Ether frame form, utilizes different MAC Address to be distinguished;
The 314:EQAM modulator receives program request program video stream, modulates, and network data is converted to radiofrequency signal, sends to client by cable TV network;
This client can be TV set-top box; In the present embodiment, by the EQAM modulator request program video flowing is modulated into radiofrequency signal;
315: broadcast items such as the client received RF signal is decoded, digital-to-analogue conversion.
The embodiment of the invention receives system status information and the user state information of DBS by broadcast management server, the user state information of backing up in realtime, and system status information is packaged into test pack sends, by monitoring server to the accepting state of test pack or monitoring server analysis result to test pack, judge whether current DBS exists fault, if fault, monitoring server sends switching command, carry out the professional translation of broadcast by broadcast management server, after broadcast translation business is finished, monitoring server is closed current DBS broadcast port and is opened standby DBS broadcast port simultaneously, thereby detection system fault all sidedly, finish the broadcast service backup in time, and then reduced system cost.
Referring to Fig. 4, the embodiment of the invention provides a kind of system of cable television VOD backup, specifically comprises:
Wherein, the user video order request includes the destination-mac address of broadcast management server 401 appointments; All TV programme are stored in the central memory in the system, and popular TV programme is from the artificial TV programme of selecting of central memory;
Particularly, if monitoring server 405 can not receive the test pack that some DBS send in 1s, or comprise fault message in the test pack of receiving, for example disk array fault message, memory failure information, system resource failure information etc. think that then this DBS breaks down;
Further, broadcast management server 401 specifically comprises:
Receiving element 4011 is used to receive the switching command that user initial video request program request, system status information and user state information and monitoring server 405 send;
Wherein test pack is the network packet of Ether frame form;
Particularly, switch unit 4014 receives switching command by Transmission Control Protocol, by VBS the user state information that backup units 4012 backs up is transmitted to standby DBS, is used for the recovery that program broadcasts, and realizes that active and standby DBS broadcasts professional translation, and this process is no more than 10 seconds;
Transmitting element 4015 is used to send test pack that packaged unit 4013 is packaged into to first switch 402; When switch unit 4014 is finished switching, be sent completely instruction and give monitoring server 405.
Receiving element 4031 is used to receive the test pack that has the user video order request of broadcasting destination-mac address and broadcast management server 401 packings;
Wherein, popular TV programme is from the artificial TV programme of selecting of central memory, and all TV programme are stored in the central memory in the system;
Transmitting element 4032 is used for the demand TV program of this locality storage is sent to second switch 404, and system status information and the user state information with DBS sends to first switch 402 simultaneously; The test pack of broadcast management server 401 packings is sent to second switch 404.
Receiving element 4051 is used for receiving second switch 404 and specifies the instruction of finishing that test pack that policing ports send and broadcast management server 401 send;
Judging unit 4052, be used for analytical test bag data, judge according to the system status information in the test pack whether this DBS exists fault, if in 1s, can not receive the test pack that some DBS send, or comprise fault message in the test pack of receiving, then judge this DBS fault;
Transmitting element 4053 is used under the situation of DBS fault, sends switching command to broadcast management server 401;
The embodiment of the invention receives system status information and the user state information of DBS by broadcast management server, the user state information of backing up in realtime, and system status information is packaged into test pack sends, by monitoring server to the accepting state of test pack or monitoring server analysis result to test pack, judge whether current DBS exists fault, if fault, monitoring server sends switching command, carry out the professional translation of broadcast by broadcast management server, after broadcast translation business is finished, monitoring server is closed current DBS broadcast port and is opened standby DBS broadcast port simultaneously, thereby detection system fault all sidedly, finish the broadcast service backup in time, and then reduced system cost.
Referring to Fig. 5, the embodiment of the invention also provides a kind of broadcast management server, specifically comprises:
Receiving element 501 is used to receive the switching command that user initial video request program request, system status information and user state information and monitoring server send;
Wherein test pack is the network packet of Ether frame form;
Particularly, switch unit 504 receives switching command by Transmission Control Protocol, by VBS the user state information that backup units 502 backs up is transmitted to standby DBS, is used for the recovery that program broadcasts, and realizes that active and standby DBS broadcasts professional translation, and this process is no more than 10 seconds;
Transmitting element 505 is used to send test pack that packaged unit 503 is packaged into to first switch; When switch unit 504 is finished switching, be sent completely instruction and give monitoring server.
The embodiment of the invention receives system status information and the user state information of DBS by broadcast management server, the user state information of backing up in realtime, and system status information is packaged into test pack sends, by monitoring server to the accepting state of test pack or monitoring server analysis result to test pack, judge whether current DBS exists fault, thereby the detection system fault is finished the broadcast service backup in time all sidedly, and then has reduced system cost.
Referring to Fig. 6, the embodiment of the invention also provides a kind of monitoring server, specifically comprises:
Receiving element 601 is used for receiving second switch and specifies the instruction of finishing that test pack that policing port sends and broadcast management server send;
Judging unit 602, be used for analytical test bag data, judge according to the system status information in the test pack whether this DBS exists fault, if in 1s, can not receive the test pack that some DBS send, or comprise fault message in the test pack of receiving, then judge this DBS fault;
Transmitting element 603 is used under the situation of DBS fault, sends switching command to broadcast management server;
The embodiment of the invention receives the test pack that broadcast management server sends by monitoring server, by to the accepting state of test pack or monitoring server analysis result to test pack, judge whether current DBS exists fault, if fault, monitoring server sends switching command, carry out the professional translation of broadcast by broadcast management server, after broadcast translation business is finished, monitoring server is closed current DBS broadcast port and is opened standby DBS broadcast port simultaneously, thereby detection system fault all sidedly, finish the broadcast service backup in time, and then reduced system cost.
All or part of content in the technical scheme that above embodiment provides can realize that its software program is stored in the storage medium that can read by software programming, storage medium for example: the hard disk in the computer, CD or floppy disk.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the method for cable television VOD system backup is characterized in that described method comprises:
Broadcast management server obtains the system status information and the user state information of broadcasting server, transmits described system status information, and backs up described user state information;
Monitoring server receives and analyzes described system status information, judges according to described system status information whether described broadcasting server exists fault; If there is fault in described broadcasting server, described monitoring server sends switching command to described broadcast management server;
Described broadcast management server receives described switching command, according to the described user state information of backup in described broadcast management server, carries out active and standby broadcasting server and broadcasts professional translation and be sent completely instruction to described monitoring server;
Described monitoring server receives the described instruction of finishing, and closes described broadcasting server and broadcasts port, opens standby broadcasting server and broadcasts port.
2. the method for claim 1, it is characterized in that, described monitoring server receives and analyzes described system status information, judge according to described system status information whether described broadcasting server exists fault, be specially, monitoring server receives the described system status information of described broadcasting server, if in Preset Time, can not receive described system status information, then described broadcasting server fault, or comprise fault message in the described system status information of receiving, then described broadcasting server fault.
3. the method for claim 1, it is characterized in that the active and standby broadcasting server of described execution broadcasts professional translation, is specially, the described user state information that described broadcast management server will back up is transmitted to described standby broadcasting server, finishes the recovery of broadcast items.
4. the method for claim 1 is characterized in that, described system status information comprises described broadcasting server system running state information and described broadcasting server internal fault information.
5. the method for claim 1 is characterized in that, described user state information comprises the broadcast state information of user video order request and described broadcasting server.
6. a cable television VOD system is characterized in that, described system comprises:
Broadcasting server is used for transmitting system state information and user state information;
Broadcast management server, be used to obtain the described system status information and the described user state information of described broadcasting server, transmit described system status information, back up described user state information, and receive the switching command that monitoring server sends, according to the described user state information of backup in described broadcast management server, carry out active and standby broadcasting server and broadcast professional translation and be sent completely instruction to described monitoring server;
Monitoring server, be used for receiving and analyzing described system status information, judge according to described system status information whether described broadcasting server exists fault, if there is fault in described broadcasting server, described monitoring server sends described switching command to described broadcast management server; What receive that described broadcast management server sends describedly finishes instruction, closes described broadcasting server and broadcasts port, opens standby broadcasting server and broadcasts port.
7. a broadcast management server is characterized in that, specifically comprises:
Receiving element is used to receive the switching command that system status information, user state information and the monitoring server of broadcasting server send;
Backup units is used to back up the described user state information that described receiving element receives;
Switch unit is used for according to described user state information, carries out active and standby broadcasting server and broadcasts professional translation;
Transmitting element is used to send the described system status information that described receiving element receives, and when described switch unit is finished switching, is sent completely instruction to described monitoring server.
8. broadcast management server as claimed in claim 7 is characterized in that, described switch unit is transmitted to standby broadcasting server according to the described user state information of backup in described backup units, finishes the recovery of broadcast items.
9. a monitoring server is characterized in that, specifically comprises:
Receiving element, the system status information and the broadcast management server that are used to receive broadcasting server are finished the instruction of finishing of sending when switching;
Judging unit is used to analyze described system status information, judges according to described system status information whether described broadcasting server exists fault;
Transmitting element is used under the situation of described broadcasting server fault, sends described switching command to described broadcast management server;
Performance element is used under the situation of described broadcasting server fault, closes described broadcasting server and broadcasts port, opens standby broadcasting server simultaneously and broadcasts port.
10. as monitoring server as described in the claim 9, it is characterized in that, if described judging unit can not receive described system status information within a certain period of time, then described broadcasting server fault, or comprise fault message in the described system status information of receiving, then described broadcasting server fault.
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| CN101699861A (en) * | 2009-10-29 | 2010-04-28 | 中兴通讯股份有限公司 | Method and system for restoring video monitoring service |
| CN102130776A (en) * | 2010-01-19 | 2011-07-20 | 新浪网技术(中国)有限公司 | Communication method and system |
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| CN101699861A (en) * | 2009-10-29 | 2010-04-28 | 中兴通讯股份有限公司 | Method and system for restoring video monitoring service |
| CN102130776A (en) * | 2010-01-19 | 2011-07-20 | 新浪网技术(中国)有限公司 | Communication method and system |
| CN102130776B (en) * | 2010-01-19 | 2013-05-01 | 新浪网技术(中国)有限公司 | Communication method and system |
| CN102802047A (en) * | 2012-07-09 | 2012-11-28 | 北京迈伦斯科技有限公司 | Information subscribing and information broadcasting method and system with cross-network collaboration |
| CN102802047B (en) * | 2012-07-09 | 2016-05-18 | 北京迈伦斯科技有限公司 | The information subscribing that a kind of inter-network is collaborative and information delivery method and system |
| CN102857799A (en) * | 2012-09-14 | 2013-01-02 | 乐视网信息技术（北京）股份有限公司 | Set top box fault diagnosis method |
| CN102857799B (en) * | 2012-09-14 | 2015-08-26 | 乐视致新电子科技（天津）有限公司 | Based on the method for diagnosing faults of Set Top Box |
| CN109688435A (en) * | 2017-10-19 | 2019-04-26 | 上海勋云信息科技有限公司 | Video on demand backup method, equipment, video on demand processing system and storage medium |
| CN110351581A (en) * | 2019-07-08 | 2019-10-18 | 北京字节跳动网络技术有限公司 | A kind of data request processing method, apparatus, terminal device and storage medium |
| CN110351581B (en) * | 2019-07-08 | 2022-02-18 | 北京字节跳动网络技术有限公司 | Data request processing method and device, terminal equipment and storage medium |
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