CN105657374A - Self-adaptive multi-network link real-time video transmission control system - Google Patents
Self-adaptive multi-network link real-time video transmission control system Download PDFInfo
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- CN105657374A CN105657374A CN201610092787.8A CN201610092787A CN105657374A CN 105657374 A CN105657374 A CN 105657374A CN 201610092787 A CN201610092787 A CN 201610092787A CN 105657374 A CN105657374 A CN 105657374A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/65—Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Abstract
The invention discloses a self-adaptive multi-network link real-time video transmission control system. The system comprises a flow control module, a network link estimation module, a network link detection module, a central processing module, a network link control module, a data transmission module and a video monitoring server, wherein the data transmission module comprises a plurality of wireless communication modules, each wireless communication module sends video data to the video monitoring server by an independent network link, and a plurality of network links can perform a task of data transmission between a video monitoring terminal and the video monitoring server. According to the system, the quantity of the wireless communication modules accessing network in the system can be dynamically increased or reduced according to the video acquisition speed of the system, so that the purpose that a plurality of network links are accessed to the wireless network self-adaptively in the system can be achieved, the data transmission speed of the system is ensured, fluent video image is ensured and the user experience is promoted.
Description
Technical field
The present invention relates to wireless network real-time video monitoring system field, more specifically, it relates to a kind of self-adaptation Multi net voting link real-time video transmission Controlling System.
Background technology
In wireless network real-time video monitoring system, when audio, video data is uploaded to Video service device, often face the situation of network link bandwidth deficiency simultaneously, especially it is in the more weak region of wireless network signal (edge such as base station coverage). When bandwidth declines, just there will be video pictures card and pause or stagnant condition, Consumer's Experience is very poor. RTP(real-time Transmission agreement) by the AVT group development of IETF, within 1996, become the formal document of RFC, for the agreement that media transmit in real time such as VOIP, video. The sub-agreement that RTP protocol include RTP and RTCP two is in close relations, RTP agreement: transmission has the data of real-time characteristic; Rtcp protocol: monitoring QOS and transmission participate in the information that multi-medium data receives originator. RTP agreement is the upper strata agreement of udp protocol, and RTP agreement, from upper strata receiving multimedia information code stream, is assembled into RTP data packet, is sent to lower floor's udp protocol, be equivalent to the session layer of OSI, it is provided that synchronous and sequence service. Therefore RTP agreement is applicable to transmit the strong data of continuity, such as video, audio frequency etc., and the time delay mistake caused by network has certain adaptive ability. RTCP is for control agreement in real time, and for managing control information, as monitored time delay and the bandwidth of network, packet drop etc., once the bandwidth of the multi-media information transmitted changes, receiving end then notifies sending end.
Summary of the invention
The present invention is at least one defect overcome described in above-mentioned prior art, a kind of self-adaptation Multi net voting link real-time video transmission Controlling System is provided, each radio communication module is separately through a network link by video data, and multiple network link completes the task that video monitoring terminal is transmitted to video monitoring server data jointly. This system can gather, according to system video, the quantity that speed dynamically increases and decreases Radio Communication module network break-in, thus reaches the object of dynamic adjusting system network link access of radio network, ensures system data rate, promotes Consumer's Experience.
If but when network link bandwidth declines, by increasing the quantity of Radio Communication module access of radio network, reach the object of increase system network link, thus ensure that video playback presents smooth picture, effectively promote Consumer's Experience.
For solving the problems of the technologies described above, the technical scheme of the present invention is as follows:
A kind of self-adaptation Multi net voting link real-time video transmission Controlling System, described system comprises:
Flow-control module: each radio communication module flow bag of monitor in real time residue situation, output flow information is to central processing module;
Network link estimation block: receive the frame video data subpackage quantity that central processing module sends over, described video data are RTP(Real-timeTransportProtocol by subpackage, real-time Transmission agreement) data packet, estimate the network link quantity required for system real-time Transmission, the i.e. quantity of radio communication module, output network number of links is to central processing module;
Network link detection module: the connected state of Sampling network link, receive the network link detection order that central processing module sends over, output network link status information is to central processing module, described network link-state information is radio communication module and the connection state information of video monitoring server, sense cycle be one hour once;
Central processing module: with flow-control module, network link estimation block, network link detection module, network link control module is connected, receive the flow information that flow-control module sends over, receive the network link quantity that network link estimation block sends over, receive the network link-state information that network link detection module feeds back, output network link control information is to network link control module, one frame video data are carried out subpackage and subpackage quantity is outputted to network link estimation block, output network link detecting order is to network link detection module,
Network link control module: be connected with transfer module with central processing module, for receiving the network link control information that central processing module sends over, exports data transfer command to transfer module.
Transfer module: be connected with network link control module, the data transfer command sended over according to network link control module carries out data transmission, transfer module comprises some radio communication modules, respectively the video data transmitting of subpackage is delivered to video monitoring server by multiple radio communication module; Video data are sent to video monitoring server separately through a network link by each radio communication module from the transmission buffer zone of radio communication module;
Video monitoring server: receive and store the video data of subpackage.
In the preferred scheme of one, described flow-control module adopts the mode of message search to monitor each radio communication module flow service condition, described flow information is each radio communication module flow residue information, each radio communication module flow residual content of frequency queries that flow-control module sets according to system manager.
In the preferred scheme of one, the concrete grammar monitoring each radio communication module flow service condition comprises the following steps:
S1.1: flow-control module passes through short message sending query statement to carrier server in the specific time every day;
S1.2: flow-control module receives carrier server and sends the Query Result of returning, obtains the flow residue information of the card that this radio communication module uses;
S1.3: judge this card flow residual content, if during the valve value that residual content sets lower than system manager, such as 100M, by flow information mark position 1 belonging to this card, send alarm message to system manager's mobile phone simultaneously, otherwise flow information zone bit belonging to this card is set to 0;
S1.4: send flow residue information to central processing module.
In the preferred scheme of one, the concrete grammar of network link detection module Sampling network chain line state comprises the following steps:
S2.1: network link detection module receives the network link detection order that central processing module sends over;
S2.2: build ICMP(Internet control message agreement) echo request message;
S2.3: send ICMP echo request message to video monitoring server by each network link one by one;
S2.4: receive video monitoring server and send the ICMP answer message returned;
S2.5: peel off ICMP header go forward side by side after row relax to answering message, relatively answer the response whether message is the ICMP echo request message sent, if, then illustrate that network link is connected, status information zone bit belonging to this network link is set to 0, disconnected for this network link even Information sign is set to 0 simultaneously; Otherwise, this network link is in disconnected state, by communication information mark position 1 belonging to this network link, adds 1 by disconnected for this network link even Information sign simultaneously;
S2.6: judge each network link break even Information sign and whether be greater than 5, if sending alarm message to system manager's mobile phone.
In the preferred scheme of one, described network link control module comprises:
Data distribution module: for being wrapped according to this by video counts as unit is distributed in the transmission buffer zone of each radio communication module, described video data are packaged into RTP data packet;
First information interactive module: for carrying out information interaction with video monitoring server;
Radio communication module control module: for controlling the on off state of each radio communication module to video monitoring server.
In the preferred scheme of one, the concrete grammar of the transmission buffer zone that video data are distributed to each radio communication module by data distribution module comprises the following steps:
S3.1: the data distribution queue of distribution enough size;
S3.2: the RTP data packet after video data subpackage enters data distribution queue successively;
S3.3: distributing N number of data transmission buffer queue and number according to the order of sequence, 1, the N that is numbered of first buffer queue is the network link quantity required for system real-time Transmission;
S3.4: design two each and every one counts variable x and y, wherein x is that frame video data distribute the residual content of RTP data packet in queue in data, and initial value is a frame video data subpackage quantity; Y is current buffer queue numbering, and initial value is 1;
S3.5: distributing from data and take out a RTP data packet queue, send in buffer queue stored in the data being numbered y, and perform y and add 1, x subtracts 1;
S3.6: the size judging x value, if the value of x is 0, then a frame video data distribution is complete, and distribution procedure terminates;
S3.7: the size judging the value of y, if the value of y is greater than N, then y resets to 1, returns step 5, otherwise is left intact, and returns step 5.
In the preferred scheme of one, described video monitoring server comprises:
2nd information interaction module: for receiving the network link access information that network link control module sends over, output network link control information is to data sink module, and described network link control information is the radio communication module number of access video monitoring server;
Data sink module: for receiving the quantity information of radio communication module access video monitoring server, and the RTP data packet of video data that radio communication module sends over, the RTP data packet of output video data is to data reorganization module;
Data reorganization module: for the RTP data packet of video data of recombinating, the RTP data packet of video data is recombinated with sequence number by it by the time stamp of RTP data packet.
In the preferred scheme of one, data reorganization module restructuring RTP data packet adopts following recombination method:
S4.1: the queue of distribution two enough sizes, is respectively restructuring queue 1 and restructuring queue 2;
S4.2: taking out RTP data packet from data sink buffer zone stored in restructuring queue 1, sort by the size of RTP packet time stamp, wherein, the time stabs minimum RTP data packet and is placed in queue heads;
S4.3: stabbing identical RTP data packet stored in restructuring queue 2 from restructuring queue 1 middle take-off time, sort by RTP sequence of data packet number, the data in row 2 are the RTP data packet after a frame video data subpackage by restructuring;
S4.4: take out all RTP data packets from restructuring queue 2, stored in media data buffer zone, clear bare weight is formed a team the data in row 2 simultaneously.
In the preferred scheme of one, described radio communication module adopts 3G module.
Compared with prior art, the useful effect of technical solution of the present invention is: the open a kind of self-adaptation Multi net voting link real-time video transmission Controlling System of the present invention, described system comprises: flow-control module, network link estimation block, network link detection module, central processing module, network link control module, transfer module, video monitoring server, transfer module comprises some radio communication modules, each radio communication module by an independent network link by video data, multiple network link completes the task that video monitoring terminal is transmitted to video monitoring server data jointly. this system can gather, according to system video, the quantity that speed dynamically increases and decreases Radio Communication module network break-in, thus reach the object of dynamic adjusting system network link access of radio network, guarantee system data rate, ensures that video playback presents smooth picture, promotes Consumer's Experience.
Accompanying drawing explanation
Fig. 1 is the structure block diagram of the self-adaptation Multi net voting link real-time video transmission Controlling System of the present invention;
Fig. 2 is the structure block diagram of the network link control module of the present invention;
Fig. 3 is the structure block diagram of the video monitoring server of the present invention;
Fig. 4 is the schema of the transmission buffer zone that video data are distributed to each radio communication module.
Fig. 5 is the schema of RTP data packet restructuring.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
To those skilled in the art, some known features and illustrate and may omit and be appreciated that in accompanying drawing.
Below in conjunction with drawings and Examples, the technical scheme of the present invention is described further.
Embodiment 1
As shown in Figure 1, a kind of self-adaptation Multi net voting link real-time video transmission Controlling System, described system comprises:
Flow-control module: each radio communication module flow bag of monitor in real time residue situation, output flow information is to central processing module;
Network link estimation block: receive the frame video data subpackage quantity that central processing module sends over, described video data are RTP data packet by subpackage, estimate the network link quantity required for system real-time Transmission, the i.e. quantity of radio communication module, output network number of links is to central processing module;
Data after H.264 video coding standard compression encodes, NALU(NetworkAbstractLayerUnit can be first packaged into before transmission or storage, network abstraction layer unit) in unit, when the length of NALU unit is more than MTU(MaximumTransmissionUnit, MTU) time, it must being carried out burst package, the data after package are RTP data packet. When the frame video data length transmitted is more than MTU, central processing module will to its burst package; When the length of NALU unit is no more than MTU, central processing module would not to its burst package, and these frame video data are a corresponding RTP data packet just.
Network link detection module: the connected state of Sampling network link, receive the network link detection order that central processing module sends over, output network link status information is to central processing module, described network link-state information is radio communication module and the connection state information of video monitoring server, detection frequency be the frequency that system manager sets, the present embodiment set sense cycle as one hour once;
Central processing module: with flow-control module, network link estimation block, network link detection module, network link control module is connected, receive the flow information that flow-control module sends over, receive the network link quantity that network link estimation block sends over, receive the network link-state information that network link detection module feeds back, output network link control information is to network link control module, one frame video data are carried out subpackage and subpackage quantity is outputted to network link estimation block, output network link detecting order is to network link detection module,
Network link control module: be connected with transfer module with central processing module, for receiving the network link control information that central processing module sends over, exports data transfer command to transfer module.
Transfer module: be connected with network link control module, the data transfer command sended over according to network link control module carries out data transmission, transfer module comprises some radio communication modules, respectively the video data transmitting of subpackage is delivered to video monitoring server by multiple radio communication module; In the present embodiment, described radio communication module adopts 3G module, and video data are sent to video monitoring server separately through a network link by each radio communication module from the transmission buffer zone of radio communication module;
Video monitoring server: receive and store the video data of subpackage.
In specific implementation process, described flow-control module adopts the mode of message search to monitor each radio communication module flow service condition, described flow information is each radio communication module flow residue information, each radio communication module flow residual content of frequency queries that flow-control module sets according to system manager, ensures that the flow usage quantity of each radio communication module does not exceed standard. In the present embodiment, flow-control module every other day inquires about each radio communication module flow residual content.
In specific implementation process, the concrete grammar monitoring each radio communication module flow service condition comprises the following steps:
S1.1: flow-control module passes through short message sending query statement to carrier server in the specific time every day;
S1.2: flow-control module receives carrier server and sends the Query Result of returning, obtains the flow residue information of the card that this radio communication module uses;
S1.3: judge this card flow residual content, if during the valve value that residual content sets lower than system manager, the present embodiment is set this valve value as 100M, by flow information mark position 1 belonging to this card, send alarm message to system manager's mobile phone simultaneously, otherwise flow information zone bit belonging to this card is set to 0;
S1.4: send flow residue information to central processing module.
In specific implementation process, the concrete grammar of network link detection module Sampling network chain line state comprises the following steps:
S2.1: network link detection module receives the network link detection order that central processing module sends over;
S2.2: build ICMP echo request message;
S2.3: send ICMP echo request message to video monitoring server by each network link one by one;
S2.4: receive video monitoring server and send the ICMP answer message returned;
S2.5: peel off ICMP header go forward side by side after row relax to answering message, relatively answer the response whether message is the ICMP echo request message sent, if, then illustrate that network link is connected, status information zone bit belonging to this network link is set to 0, disconnected for this network link even Information sign is set to 0 simultaneously; Otherwise, this network link is in disconnected state, by communication information mark position 1 belonging to this network link, adds 1 by disconnected for this network link even Information sign simultaneously;
S2.6: judge valve value that is that each network link breaks company's Information sign and that whether be greater than system manager's setting, be set to 5 in the present embodiment, if sending alarm message to system manager's mobile phone.
As shown in Figure 2, in specific implementation process, described network link control module comprises:
Data distribution module: for being wrapped according to this by video counts as unit is distributed in the transmission buffer zone of each radio communication module, described video data are packaged into RTP data packet;
First information interactive module: for carrying out information interaction with video monitoring server;
Radio communication module control module: for controlling the on off state of each radio communication module to video monitoring server.
As shown in Figure 4, in specific implementation process, the concrete grammar of the transmission buffer zone that video data are distributed to each radio communication module by data distribution module comprises the following steps:
S3.1: the data distribution queue of distribution enough size;
S3.2: the RTP data packet after video data subpackage enters data distribution queue successively;
S3.3: distributing N number of data transmission buffer queue and number according to the order of sequence, 1, the N that is numbered of first buffer queue is the network link quantity required for system real-time Transmission;
S3.4: design two each and every one counts variable x and y, wherein x is that frame video data distribute the residual content of RTP data packet in queue in data, and initial value is a frame video data subpackage quantity; Y is current buffer queue numbering, and initial value is 1;
S3.5: distributing from data and take out a RTP data packet queue, send in buffer queue stored in the data being numbered y, and perform y and add 1, x subtracts 1;
S3.6: the size judging x value, if the value of x is 0, then a frame video data distribution is complete, and distribution procedure terminates;
S3.7: the size judging the value of y, if the value of y is greater than N, then y resets to 1, returns step 5, otherwise is left intact, and returns step 5.
As shown in Figure 3, in specific implementation process, described video monitoring server comprises:
2nd information interaction module: for receiving the network link access information that network link control module sends over, output network link control information is to data sink module, and described network link control information is the radio communication module number of access video monitoring server;
Data sink module: for receiving the quantity information of radio communication module access video monitoring server, and the RTP data packet of video data that radio communication module sends over, the RTP data packet of output video data is to data reorganization module;
Data reorganization module: for the RTP data packet of video data of recombinating, the RTP data packet of video data is recombinated with sequence number by it by the time stamp of RTP data packet.
As shown in Figure 5, in specific implementation process, data reorganization module restructuring RTP data packet adopts following recombination method:
S4.1: apply for two restructuring queues, is respectively restructuring queue 1 and restructuring queue 2;
S4.2: taking out RTP data packet from data sink buffer zone stored in restructuring queue 1, sort by the size of RTP packet time stamp, wherein, the time stabs minimum RTP data packet and is placed in queue heads;
S4.3: stabbing identical RTP data packet stored in restructuring queue 2 from restructuring queue 1 middle take-off time, sort by RTP sequence of data packet number, the data in row 2 are the RTP data packet after a frame video data subpackage by restructuring;
S4.4: take out all RTP data packets from restructuring queue 2, stored in media data buffer zone, clear bare weight is formed a team the data in row 2 simultaneously.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without the need to also cannot all enforcement modes be given exhaustive. All any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within the protection domain of the claims in the present invention.
Claims (9)
1. a self-adaptation Multi net voting link real-time video transmission Controlling System, it is characterised in that, described system comprises:
Flow-control module: each radio communication module flow bag of monitor in real time residue situation, output flow information is to central processing module;
Network link estimation block: receive the frame video data subpackage quantity that central processing module sends over, described video data are RTP data packet by subpackage, estimate the network link quantity required for system real-time Transmission, the i.e. quantity of radio communication module, output network number of links is to central processing module;
Network link detection module: the connected state of Sampling network link, receive the network link detection order that central processing module sends over, output network link status information is to central processing module, and described network link-state information is radio communication module and the connection state information of video monitoring server;
Central processing module: with flow-control module, network link estimation block, network link detection module, network link control module is connected, receive the flow information that flow-control module sends over, receive the network link quantity that network link estimation block sends over, receive the network link-state information that network link detection module feeds back, output network link control information is to network link control module, one frame video data are carried out subpackage and subpackage quantity is outputted to network link estimation block, output network link detecting order is to network link detection module,
Network link control module: be connected with transfer module with central processing module, for receiving the network link control information that central processing module sends over, exports data transfer command to transfer module;
Transfer module: be connected with network link control module, the data transfer command sended over according to network link control module carries out data transmission, transfer module comprises some radio communication modules, respectively the video data transmitting of subpackage is delivered to video monitoring server by multiple radio communication module; Video data are sent to video monitoring server by an independent network link by each radio communication module from the transmission buffer zone of radio communication module;
Video monitoring server: receive and store the video data of subpackage.
2. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 1, it is characterized in that, described flow-control module adopts the mode of message search to monitor each radio communication module flow service condition, described flow information is each radio communication module flow residue information, each radio communication module flow residual content of frequency queries that flow-control module sets according to system manager.
3. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 2, it is characterised in that, the concrete grammar monitoring each radio communication module flow service condition comprises the following steps:
S1.1: flow-control module passes through short message sending query statement to carrier server in the specific time every day;
S1.2: flow-control module receives carrier server and sends the Query Result of returning, obtains the flow residue information of the card that this radio communication module uses;
S1.3: judge this card flow residual content, if residual content set lower than system manager valve value time, by flow information mark position 1 belonging to this card, send alarm message to system manager's mobile phone simultaneously, otherwise flow information zone bit belonging to this card set to 0;
S1.4: send flow residue information to central processing module.
4. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 1, it is characterised in that, the concrete grammar of network link detection module Sampling network chain line state comprises the following steps:
S2.1: network link detection module receives the network link detection order that central processing module sends over;
S2.2: build ICMP echo request message;
S2.3: send ICMP echo request message to video monitoring server by each network link one by one;
S2.4: receive video monitoring server and send the ICMP answer message returned;
S2.5: peel off ICMP header go forward side by side after row relax to answering message, relatively answer the response whether message is the ICMP echo request message sent, if, then illustrate that network link is connected, status information zone bit belonging to this network link is set to 0, disconnected for this network link even Information sign is set to 0 simultaneously; Otherwise, this network link is in disconnected state, by communication information mark position 1 belonging to this network link, adds 1 by disconnected for this network link even Information sign simultaneously;
S2.6: judge each network link break even Information sign and whether be greater than 5, if sending alarm message to system manager's mobile phone.
5. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 1, it is characterised in that, described network link control module comprises:
Data distribution module: for being wrapped according to this by video counts as unit is distributed in the transmission buffer zone of each radio communication module, described video data are packaged into RTP data packet;
First information interactive module: for carrying out information interaction with video monitoring server;
Radio communication module control module: for controlling the on off state of each radio communication module to video monitoring server.
6. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 5, it is characterised in that, the concrete grammar of the transmission buffer zone that video data are distributed to each radio communication module by data distribution module comprises the following steps:
S3.1: the data distribution queue of distribution enough size;
S3.2: the RTP data packet after video data subpackage enters data distribution queue successively;
S3.3: distributing N number of data transmission buffer queue and number according to the order of sequence, 1, the N that is numbered of first buffer queue is the network link quantity required for system real-time Transmission;
S3.4: design two each and every one counts variable x and y, wherein x is that frame video data distribute the residual content of RTP data packet in queue in data, and initial value is a frame video data subpackage quantity; Y is current buffer queue numbering, and initial value is 1;
S3.5: distributing from data and take out a RTP data packet queue, send in buffer queue stored in the data being numbered y, and perform y and add 1, x subtracts 1;
S3.6: the size judging x value, if the value of x is 0, then a frame video data distribution is complete, and distribution procedure terminates;
S3.7: the size judging the value of y, if the value of y is greater than N, then y resets to 1, returns step 5, otherwise is left intact, and returns step 5.
7. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 5, it is characterised in that, described video monitoring server comprises:
2nd information interaction module: for receiving the network link access information that network link control module sends over, output network link control information is to data sink module, and described network link control information is the radio communication module number of access video monitoring server;
Data sink module: for receiving the quantity information of radio communication module access video monitoring server, and the RTP data packet of video data that radio communication module sends over, the RTP data packet of output video data is to data reorganization module;
Data reorganization module: for the RTP data packet of video data of recombinating, the RTP data packet of video data is recombinated with sequence number by it by the time stamp of RTP data packet.
8. self-adaptation Multi net voting link real-time video transmission Controlling System according to claim 7, it is characterised in that, data reorganization module restructuring RTP data packet adopts following recombination method:
S4.1: the queue of distribution two enough sizes, is respectively restructuring queue 1 and restructuring queue 2;
S4.2: taking out RTP data packet from data sink buffer zone stored in restructuring queue 1, sort by the size of RTP packet time stamp, wherein, the time stabs minimum RTP data packet and is placed in queue heads;
S4.3: stabbing identical RTP data packet stored in restructuring queue 2 from restructuring queue 1 middle take-off time, sort by RTP sequence of data packet number, the data in row 2 are the RTP data packet after a frame video data subpackage by restructuring;
S4.4: take out all RTP data packets from restructuring queue 2, stored in media data buffer zone, clear bare weight is formed a team the data in row 2 simultaneously.
9. self-adaptation Multi net voting link real-time video transmission Controlling System according to the arbitrary item of claim 1-8, it is characterised in that, described radio communication module adopts 3G module.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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