CN102333074A - Method and equipment for transmitting data in monitoring system - Google Patents
Method and equipment for transmitting data in monitoring system Download PDFInfo
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- CN102333074A CN102333074A CN201110170852A CN201110170852A CN102333074A CN 102333074 A CN102333074 A CN 102333074A CN 201110170852 A CN201110170852 A CN 201110170852A CN 201110170852 A CN201110170852 A CN 201110170852A CN 102333074 A CN102333074 A CN 102333074A
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Abstract
The invention discloses a method and equipment for transmitting data in a monitoring system. The method comprises the following steps that: an agent encoder (EC) determines the next agent EC and sends a first request message to the next agent EC; the agent EC receives a first response message; the agent EC sends a second request message to a media server (MS); and the MS sends a second response message to the agent EC; and the agent EC informs the next agent EC of sending the data according to an Intellectual property (IP) address and receiving port information of the MS. By the method and the equipment, stress on video management (VM) processing signaling can be reduced.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the transmission method and the equipment of data in a kind of supervisory control system.
Background technology
Along with expanding economy; The video monitoring technology has obtained using widely and development rapidly; The basic service function of video monitoring comprises live telecast, storage, program request, video camera control, alarming processing etc.; The digitized video data of video monitoring can be used for real-time monitoring, also can store earlier to supply follow-up playback.
The sketch map of video monitoring system as shown in Figure 1, MS (Media Server, streaming media server) are used for the forwarding distribution of multicast/unicast media stream, the VOD of historical data operations such as (Video On Demand, video request programs); VM (Video Management, video management) server is used for operations such as authentication, configuration, the forwarding of control signaling and total system management; VC (Video Client, videoconference client) is the client of receiving media stream; EC (Encoder, encoder) is digital signal for gathering the terminal of Media Stream with the analog audio-video conversion of signals, and after using the real-time audio and video compression algorithm to handle transfer of data is arrived network; DC (Decoder, decoder), opposite with the handling process of encoder, video flowing is decoded, and show decoded data through equipment such as video walls.
In monitoring technique, the foundation and the dispose procedure of miscellaneous service are all controlled by VM.For example, when a terminal (DC) needs the video image at certain terminal of program request (EC), need send signaling to DC and EC respectively by VM, to set up the session connection between DC and the EC.
In existing round cut (data of the DC wheel streaming on demand multichannel EC) business; Need set up in turn and discharge the monitoring relation EC in the round cut tabulation and DC, promptly set up in turn and discharge the monitoring relation between EC and the MS and set up in turn and the monitoring that discharges between DC and the MS concerns by VM.
As shown in Figure 2; For in the current round cut business to the foundation of the monitoring between EC and DC relation and the schematic flow sheet of release; Beginning back VM foundation and discharge first flow process of monitoring relation with round cut is that example describes; Follow-up other foundation and the release flow of EC and the monitoring between DC relation and shown in Figure 2 similar no longer repeats to give unnecessary details at this.
One, the process of setting up of the relation of the monitoring between EC and the DC comprises:
1., VM sends INVITE (request) message based on SDP (Session Description Protocol, Session Description Protocol) to DC.
2., DC returns the 200OK message based on SDP to VM, carried the receiving port number and local capability set that are used to receive data (being Media Stream) on this DC in this 200OK message.
3., VM sends set up (foundation) message based on MAI type (the MAI type message is privately owned message) to MS, carried the IP address of DC and the IP address of receiving port number and EC in this set up message.
4., MS returns the ok message based on the MAI type to VM, carries receiving port number and the transmitting terminal slogan of MS in this ok message; This receiving port number is used for notice and gives EC, uses the destination interface of the receiving port number of MS as data by EC; This transmitting terminal slogan is used for notice and gives DC, and receiving destination interface by DC is the data of the transmitting terminal slogan of MS.
5., VM notifies IP address and the receiving port number of MS to EC through the INVITE based on SDP, the IP address of MS and receiving port number send the purpose IP address and the destination interface of data as EC.In addition, VM also need notify the form of EC audio/video flow according to the local capability set of DC.
6., EC is through returning the transmitting terminal slogan of self to VM based on the 200OK message of SDP.
7., VM notifies IP address and the transmitting terminal slogan of EC to MS through start (beginning) message based on the MAI type, sets up forwarding-table item by MS at self, and transmits data according to forwarding-table item.Wherein, this forwarding-table item is as shown in table 1.
Table 1
8., MS returns the ok message based on the MAI type to VM.
9., VM begins to receive data through ACK (affirmation) the message informing DC based on SDP.
10., VM begins to send data through the ACK message informing EC based on SDP.
Two, the dispose procedure of the relation of the monitoring between EC and the DC comprises:
1., VM sends delete (deletion) message based on the MAI type to MS, notifies MS to stop to carry out the forwarding of Media Stream.
2., MS returns the ok message based on the MAI type to VM.
3., VM sends the BYE message that notice DC stops to accept data to DC.
4., VM sends the BYE message that notice EC stops to send data to EC
5., DC returns 200OK message to VM.
6., EC returns 200OK message to VM.
Can be found out that by above-mentioned flow process the foundation and the dispose procedure of the monitoring relation between EC and the DC all need be controlled through VM, i.e. all professional foundation and release all need be passed through the mutual signaling of VM; And the foundation and the dispose procedure of the frequent execution of round cut service needed monitoring relation, when existing a large amount of round cuts professional, VM will frequently set up and discharge the monitoring relation, VM caused very big pressure, and the signaling process of VM is caused performance bottleneck.
Summary of the invention
The present invention provides the transmission method and the equipment of data in a kind of supervisory control system, to alleviate the pressure of VM processing signaling.
In order to achieve the above object; The present invention provides the transmission method of data in a kind of supervisory control system; Be applied to comprise in the supervisory control system of video management server VM, streaming media server MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; This method may further comprise the steps:
When knowing that according to said round cut temporal information round cut begins; Said VM sets up session connection and the current session connection of acting on behalf of EC and said MS from data to said DC that need send of said DC and said MS, and said round cut plan is sent to the said EC of agency;
The said EC of agency confirms that according to said round cut temporal information the next one acts on behalf of EC, and acts on behalf of EC to the said next one and send first request message, carries IP address and the receiving port information of said MS in said first request message;
The said EC of agency receives first response message of acting on behalf of EC from the said next one, carries the transmit port information that the said next one is acted on behalf of EC in said first response message;
The said EC of agency sends second request message to said MS, carries IP address and transmit port information that the said next one is acted on behalf of EC in said second request message;
Said MS acts on behalf of the said next one IP address and the transmit port information updating of EC in the corresponding forwarding-table item of said DC, and sends second response message to the said EC of agency;
The said EC of agency notifies the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS.
Also carry IP address and the receiving port information of said DC in said second request message; Said MS acts on behalf of the said next one IP address and the transmit port information updating of EC in the corresponding forwarding-table item of said DC, specifically comprises:
Said MS records IP address and the transmit port information of the said EC of agency through IP address and the receiving port information inquiry forwarding-table item of said DC in the said forwarding-table item;
Said MS replaces the IP address of acting on behalf of EC and the transmit port information that writes down in the forwarding-table item through IP address and transmit port information that the said next one is acted on behalf of EC.
Also carry IP address and the receiving port information of said DC in said second request message; Said MS sends second response message to the said EC of agency, specifically comprises:
Said MS records IP address and the transmit port information of the said EC of agency through IP address and the receiving port information inquiry forwarding-table item of said DC in the said forwarding-table item;
If have only said DC correspondence that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then said MS sends the said EC of agency of indication to the said EC of agency and stops to send second response message of data;
If there are other DC correspondences that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then said MS sends said second response message of acting on behalf of EC continuation transmission data of indication to the said EC of agency.
The said EC of agency notifies the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS, also comprises afterwards:
The said next one is acted on behalf of EC and is sent data according to IP address and the receiving port information of said MS to said MS;
Said MS receives the data of acting on behalf of EC from the said next one, and according to IP address and the receiving port information of the said DC that writes down in the forwarding-table item said data is sent to said DC.
Said method also comprises: when knowing that according to said round cut temporal information the corresponding round cut of said DC stops, and the IP address of the said DC of inquiry and the corresponding IP address of acting on behalf of EC and the transmit port information of receiving port information the forwarding-table item of said VM from MS;
Said VM discharges the session connection of acting on behalf of EC and MS according to the IP address of acting on behalf of EC and transmit port information, and the session connection that discharges said DC and said MS according to IP address and the receiving port information of DC.
Said method also comprises: the said EC of agency sends to the said next one with said round cut plan and acts on behalf of EC, and deletes the said round cut plan of self preserving.
A kind of encoder EC; Be applied to comprise in the supervisory control system of video management server VM, streaming media server MS, decoder DC and a plurality of EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; When said encoder EC as current need to said DC send data act on behalf of EC the time, said EC comprises:
First receiver module is used to receive the round cut plan from said VM;
Determination module is used for confirming that according to the calculated round cut temporal information of said round cut the next one acts on behalf of EC;
First sending module is used for acting on behalf of EC to the said next one and sends first request message, carries IP address and the receiving port information of said MS in said first request message;
Second receiver module is used to receive first response message of acting on behalf of EC from the said next one, carries the transmit port information that the said next one is acted on behalf of EC in said first response message;
Second sending module is used for sending second request message to said MS, carries IP address and transmit port information that the said next one is acted on behalf of EC in said second request message;
The 3rd receiver module is used to receive second response message from said MS;
The 3rd sending module is used to notify the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS.
Said first sending module is used for that also said round cut plan is sent to the said next one and acts on behalf of EC, and deletes the said round cut plan of self preserving.
A kind of streaming media server MS; Be applied to comprise in the supervisory control system of video management server VM, said MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; Said MS comprises:
Receiver module is used to receive from current and need sends second request message of acting on behalf of EC of data to said DC, carries IP address and transmit port information that the next one is acted on behalf of EC in said second request message;
Processing module, the IP address and the transmit port information updating that are used for the said next one is acted on behalf of EC are to the corresponding forwarding-table item of said DC;
Sending module is used for sending second response message to the said EC of agency.
Also carry IP address and the receiving port information of said DC in said second request message;
Said processing module specifically is used for IP address and receiving port information inquiry forwarding-table item through said DC, records IP address and the transmit port information of the said EC of agency in the said forwarding-table item;
And act on behalf of the IP address of acting on behalf of EC and the transmit port information that writes down in IP address and the transmit port information replacement forwarding-table item of EC through the said next one.
Also carry IP address and the receiving port information of said DC in said second request message;
Said sending module specifically is used for IP address and receiving port information inquiry forwarding-table item through said DC, records IP address and the transmit port information of the said EC of agency in the said forwarding-table item;
If have only said DC correspondence that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then send the said EC of agency of indication and stop to send second response message of data to the said EC of agency;
If have other DC correspondences that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then send said second response message of acting on behalf of EC continuation transmission data of indication to the said EC of agency.
A kind of video management server VM; Be applied to comprise in the supervisory control system of said VM, streaming media server MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; Said VM comprises:
Sending module; Be used for when knowing that according to said round cut temporal information round cut begins; Set up session connection and the current session connection of acting on behalf of EC and said MS from data to said DC that need send of said DC and said MS, and said round cut plan sends to the said EC of agency;
Enquiry module is used for when knowing that according to said round cut temporal information the corresponding round cut of said DC stops, the IP address of the said DC of inquiry and the corresponding IP address of acting on behalf of EC and the transmit port information of receiving port information the forwarding-table item from MS;
Release module is used for discharging the session connection of acting on behalf of EC and MS according to the IP address of acting on behalf of EC and transmit port information, and the session connection that discharges said DC and said MS according to IP address and the receiving port information of DC.
Compared with prior art, the present invention has the following advantages at least: can reduce the pressure of VM processing signaling, and keep the control authority of VM to subordinate terminal and server.
Description of drawings
Fig. 1 is the sketch map of video monitoring system in the prior art;
Fig. 2 be in the prior art in the round cut business to the foundation of the monitoring between EC and DC relation and the schematic flow sheet of release;
Fig. 3 is the transmission method flow chart of data in a kind of supervisory control system provided by the invention;
Fig. 4 is the structure chart of a kind of encoder EC of proposing of the present invention;
Fig. 5 is the structure chart of a kind of streaming media server MS of proposing of the present invention;
Fig. 6 is the structure chart of a kind of video management server VM of proposing of the present invention.
Embodiment
To the described problem of background technology; The present invention provides the transmission method and the equipment of data in a kind of supervisory control system; Through the professional Signalling exchange flow process of round cut the most used in the supervisory control system is adjusted; To reduce the mutual signaling process of VM, guarantee the professional reliability and the integrality of played data simultaneously.
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
The present invention proposes the transmission method of data in a kind of supervisory control system (like Media Stream); This method is applied to comprise in the supervisory control system of VM, MS, DC and a plurality of EC; VM is provided with the round cut plan of a plurality of EC data of DC program request, and (user is after creating the round cut plan; Preserve this round cut plan by VM), this round cut comprises the IP address of DC, IP address and the round cut temporal information of each EC in the works at least.
For example, when DC1 needs the data of program request EC1, EC2, EC3, round cut will comprise the IP address of DC1, the IP address of EC1, the IP address of EC2, the IP address of EC3 in the works; This round cut temporal information is used to indicate the time of the data of each EC of DC1 program request, and the round cut temporal information can be the round cut time interval information, like the DC1 data of program request EC1, EC2, EC3 successively; And the round cut time interval is 10s; The DC1 data of program request EC1 for the first time then, the data of program request EC2 behind the 10s, the data of program request EC3 behind the 10s; The data of program request EC1 behind the 10s, by that analogy; The round cut temporal information can be the concrete round cut time, like the data of DC1 at 2011.6.21 day 8:00:00 program request EC1, in the data of 2011.6.21 day 8:00:10 program request EC1, by that analogy.
With the round cut temporal information is the DC1 data instance of (2011.6.21 day 8:00:00) program request EC1 for the first time; The data of program request EC2 behind the 10s; By that analogy, when VM knows that according to the round cut temporal information round cut begins (time is 2011.6.21 day 8:00:00), VM will trigger EC1 and send data to DC1; This moment, EC1 was for acting on behalf of EC, acted on behalf of EC and be currently need send the EC of data to DC.
Concrete; Because EC1 need transmit through MS to the data that DC1 sends; Therefore VM need set up the session connection of DC1 and MS and the session connection of EC1 and MS; This process of setting up session connection can adopt the above-mentioned EC shown in Figure 2 and the process of setting up of the relation of the monitoring between the DC, and through behind the said process, MS is last will to generate the forwarding-table item shown in the table 2.
Table 2
Among the present invention, VM need send to the round cut plan and act on behalf of EC (EC1), as the step set up in above-mentioned monitoring relation 5. in, to the INVITE that EC1 sends the round cut plan is sent to EC1 through VM, make EC1 preserve the round cut plan in this locality.
It should be noted that; The information that EC1 self obtains in IP address and the session connection process of IP address, the DC1 of each EC according to round cut in the works, EC1 is last to record IP address and the receiving port information (like receiving port number) of MS, the IP address of each EC, IP address and receiving port information and the round cut temporal information of DC1.Last IP address and the transmit port information that records MS of DC1.
Based on said process, after the monitoring relation of DC1 and EC1 is set up, switching is accomplished in the round cut of each EC between EC and MS, as shown in Figure 3, this method may further comprise the steps:
Step 301 is acted on behalf of EC (like EC1) and is confirmed that according to the round cut temporal information next one acts on behalf of EC, and acts on behalf of EC to the next one and send first request message (like the INVITE request), the IP address and the receiving port information of carrying MS in this first request message.
For example; 2011.6.21 the 10s after day 8:00:00; DC1 is with the data of program request EC2; Be the next one to act on behalf of EC be EC2, EC1 sends first request message to EC2, carries the form (will send data according to this form when follow-up EC2 sends data) of the audio, video data that IP address, receiving port information and the DC1 of MS support in this first request message.
Need to prove that EC1 can also be provided with predetermined time-out time after EC2 sends first request message, if in time-out time, EC1 does not receive first response message from EC2, and then EC1 skips EC2, sends first request message to EC3.
Step 302 is acted on behalf of EC and is received first response message (like 200OK) of acting on behalf of EC from the next one, carries the transmit port information that the next one is acted on behalf of EC in this first response message.
After EC2 receives first request message from EC1, need return first response message that carries self transmit port information to EC1, afterwards, EC1 will receive first response message from EC2.
Need to prove that EC2 selects the strategy of this transmit port information to be: if EC2 is sending data to MS, then EC2 gives EC1 with the port of current transmission data as the transmit port information-reply; If EC2 does not send data to MS, then EC2 generates a port and gives EC1 as the transmit port information-reply, and before the port of this generation lost efficacy, EC2 used this port to send data to MS.
Step 303 is acted on behalf of EC and is sent second request message (like the disconnection message based on the MAI type) to MS, carries the next one in this second request message and acts on behalf of the IP address of EC and IP address and the receiving port information of transmit port information and DC.
It should be noted that owing to record the IP address of DC1 and the IP address of receiving port information and EC2 on the EC1, receive the transmit port information of EC2 in the step 302 again, so EC1 can send to MS through second request message with above-mentioned information.
Among the present invention; MS can be through IP address and the receiving port information inquiry forwarding-table item (will record IP address and the transmit port information of EC1 in this forwarding-table item) of DC1, and IP address and the transmit port information of the EC1 that writes down in IP address through EC2 and the transmit port information replacement forwarding-table item.As to the forwarding-table item shown in the table 2, can obtain the forwarding-table item shown in the table 3.
Table 3
Further, in acting on behalf of the process that EC sends second response message, if having only IP address and the transmit port information of DC1 to EC1 should be arranged in the forwarding-table item, then MS sends indication EC1 to EC1 and stops to send second response message of data; If IP address and the transmit port information of other DC to EC1 should be arranged is arranged in the forwarding-table item, then MS sends second response message that indication EC1 continues the transmission data to EC1.
Afterwards, after EC1 received indication EC1 stops to send second response message of data, then EC1 no longer sent data to MS, promptly stops to send data, and closes transmit port; Receive second response message of indication EC1 continuation transmission data as EC1 after, then EC1 continues to send data to MS.
Step 305 is acted on behalf of the next EC that acts on behalf of of EC notice and is sent data according to IP address and the receiving port information of MS.For example, EC1 sends data through IP address from ACK message informing EC2 to MS and receiving port number, and promptly the purpose IP of data is the IP address of MS, and destination interface is the receiving port number of MS.
Afterwards, EC2 sends data according to IP address and the receiving port information of MS to MS; MS receives the data from EC2, and sends the data to DC1 according to IP address and the receiving port information of the DC1 that writes down in the forwarding-table item.
It should be noted that when EC2 according to the IP address of MS and receiving port information when MS sends data, then this EC2 will be as acting on behalf of EC; Continue execution in step 301; EC2 confirms that according to the round cut temporal information next one acts on behalf of EC (like the 10s after the 2011.6.21 day 8:00:10, DC1 is with the data of program request EC3, and it is EC3 that the next one is acted on behalf of EC); And send first request message to EC3; By that analogy, each EC can send data to DC1 successively according to the program request order of DC1, to realize the round cut process according to the round cut plan.
Need to prove, can know the round cut plan, act on behalf of EC and also need the round cut plan be sent to the next one and act on behalf of EC, and delete the round cut plan of self preserving in order to make the next one act on behalf of EC.For example, EC1 need send to EC2 with the round cut plan, preserves the round cut plan by EC2, and deletion EC1 goes up the round cut plan of preserving; In the subsequent process, EC2 need send to EC3 with the round cut plan, preserves the round cut plan by EC3, and deletion EC2 goes up the round cut plan of preserving; EC3 need send to EC1 with the round cut plan, preserves the round cut plan by EC1, and deletion EC3 goes up the round cut plan of preserving; And the like, give unnecessary details no longer in detail at this.
Among the present invention, when VM knows that according to the round cut temporal information the corresponding round cut of DC stops, the IP address of inquiry DC and the corresponding IP address of acting on behalf of EC and the transmit port information of receiving port information the forwarding-table item of VM from MS; And discharge the session connection of acting on behalf of EC and MS, and according to the IP address of DC and the session connection of receiving port information release DC and MS according to the IP address of acting on behalf of EC and transmit port information.
For example; VM is known when the round cut of DC1 stops; When recording the transmit port information of IP address of IP address and receiving port information and EC2 of DC1 in the last forwarding-table item of MS, then acting on behalf of EC is EC2, and VM will discharge the session connection of EC2 and MS and the session connection of DC1 and MS this moment; This dispose procedure and prior art are similar, give unnecessary details no longer in detail at this.
In sum, among the present invention, MS can use the IP address of new EC and IP address and the port that port is replaced original EC, and transmits according to forwarding-table item, has effectively solved DC and has received the flower screen phenomenon that many streams possibly cause.And can reduce the pressure of VM processing signaling, and keep the control authority of VM to subordinate terminal and server.
Based on the inventive concept same with said method; The invention allows for a kind of encoder EC; Be applied to comprise in the supervisory control system of video management server VM, streaming media server MS, decoder DC and a plurality of EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; As shown in Figure 4, when said encoder EC as current need to said DC send data act on behalf of EC the time, said EC comprises:
First receiver module 11 is used to receive the round cut plan from said VM;
Determination module 12 is used for confirming that according to the calculated round cut temporal information of said round cut the next one acts on behalf of EC;
First sending module 13 is used for acting on behalf of EC to the said next one and sends first request message, carries IP address and the receiving port information of said MS in said first request message;
Second receiver module 14 is used to receive first response message of acting on behalf of EC from the said next one, carries the transmit port information that the said next one is acted on behalf of EC in said first response message;
Second sending module 15 is used for sending second request message to said MS, carries IP address and transmit port information that the said next one is acted on behalf of EC in said second request message;
The 3rd receiver module 16 is used to receive second response message from said MS;
The 3rd sending module 17 is used to notify the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS.
Said first sending module 13 is used for that also said round cut plan is sent to the said next one and acts on behalf of EC, and deletes the said round cut plan of self preserving.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Based on the inventive concept same with said method; The invention allows for a kind of streaming media server MS; Be applied to comprise in the supervisory control system of video management server VM, said MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; As shown in Figure 5, said MS comprises:
Sending module 23 is used for sending second response message to the said EC of agency.
Also carry IP address and the receiving port information of said DC in said second request message; Said processing module 22 specifically is used for IP address and receiving port information inquiry forwarding-table item through said DC, records IP address and the transmit port information of the said EC of agency in the said forwarding-table item; And act on behalf of the IP address of acting on behalf of EC and the transmit port information that writes down in IP address and the transmit port information replacement forwarding-table item of EC through the said next one.
Also carry IP address and the receiving port information of said DC in said second request message; Said sending module 23 specifically is used for IP address and receiving port information inquiry forwarding-table item through said DC, records IP address and the transmit port information of the said EC of agency in the said forwarding-table item;
If have only said DC correspondence that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then send the said EC of agency of indication and stop to send second response message of data to the said EC of agency;
If have other DC correspondences that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then send said second response message of acting on behalf of EC continuation transmission data of indication to the said EC of agency.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Based on the inventive concept same with said method; The invention allows for a kind of video management server VM; Be applied to comprise in the supervisory control system of said VM, streaming media server MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; As shown in Figure 6, said VM comprises:
Sending module 31; Be used for when knowing that according to said round cut temporal information round cut begins; Set up session connection and the current session connection of acting on behalf of EC and said MS from data to said DC that need send of said DC and said MS, and said round cut plan is sent to the said EC of agency;
Enquiry module 32 is used for when knowing that according to said round cut temporal information the corresponding round cut of said DC stops, the IP address of the said DC of inquiry and the corresponding IP address of acting on behalf of EC and the transmit port information of receiving port information the forwarding-table item from MS;
Release module 33 is used for discharging the session connection of acting on behalf of EC and MS according to the IP address of acting on behalf of EC and transmit port information, and the session connection that discharges said DC and said MS according to IP address and the receiving port information of DC.
Wherein, each module of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the description of above execution mode, those skilled in the art can be well understood to the present invention and can realize through hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding; Technical scheme of the present invention can be come out with the embodied of software product, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk; Portable hard drive etc.) in; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, module in the accompanying drawing or flow process might not be that embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of embodiment just to description.
More than disclosedly be merely several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (12)
1. the transmission method of data in the supervisory control system; Be applied to comprise in the supervisory control system of video management server VM, streaming media server MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; It is characterized in that this method may further comprise the steps:
When knowing that according to said round cut temporal information round cut begins; Said VM sets up session connection and the current session connection of acting on behalf of EC and said MS from data to said DC that need send of said DC and said MS, and said round cut plan is sent to the said EC of agency;
The said EC of agency confirms that according to said round cut temporal information the next one acts on behalf of EC, and acts on behalf of EC to the said next one and send first request message, carries IP address and the receiving port information of said MS in said first request message;
The said EC of agency receives first response message of acting on behalf of EC from the said next one, carries the transmit port information that the said next one is acted on behalf of EC in said first response message;
The said EC of agency sends second request message to said MS, carries IP address and transmit port information that the said next one is acted on behalf of EC in said second request message;
Said MS acts on behalf of the said next one IP address and the transmit port information updating of EC in the corresponding forwarding-table item of said DC, and sends second response message to the said EC of agency;
The said EC of agency notifies the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS.
2. the method for claim 1 is characterized in that, also carries IP address and the receiving port information of said DC in said second request message;
Said MS acts on behalf of the said next one IP address and the transmit port information updating of EC in the corresponding forwarding-table item of said DC, specifically comprises:
Said MS records IP address and the transmit port information of the said EC of agency through IP address and the receiving port information inquiry forwarding-table item of said DC in the said forwarding-table item;
Said MS replaces the IP address of acting on behalf of EC and the transmit port information that writes down in the forwarding-table item through IP address and transmit port information that the said next one is acted on behalf of EC.
3. the method for claim 1 is characterized in that, also carries IP address and the receiving port information of said DC in said second request message;
Said MS sends second response message to the said EC of agency, specifically comprises:
Said MS records IP address and the transmit port information of the said EC of agency through IP address and the receiving port information inquiry forwarding-table item of said DC in the said forwarding-table item;
If have only said DC correspondence that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then said MS sends the said EC of agency of indication to the said EC of agency and stops to send second response message of data;
If there are other DC correspondences that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then said MS sends said second response message of acting on behalf of EC continuation transmission data of indication to the said EC of agency.
4. the method for claim 1 is characterized in that, the said EC of agency notifies the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS, also comprises afterwards:
The said next one is acted on behalf of EC and is sent data according to IP address and the receiving port information of said MS to said MS;
Said MS receives the data of acting on behalf of EC from the said next one, and according to IP address and the receiving port information of the said DC that writes down in the forwarding-table item said data is sent to said DC.
5. like each described method of claim 1-4, it is characterized in that said method also comprises:
When knowing that according to said round cut temporal information the corresponding round cut of said DC stops, the IP address of the said DC of inquiry and the corresponding IP address of acting on behalf of EC and the transmit port information of receiving port information the forwarding-table item of said VM from MS;
Said VM discharges the session connection of acting on behalf of EC and MS according to the IP address of acting on behalf of EC and transmit port information, and the session connection that discharges said DC and said MS according to IP address and the receiving port information of DC.
6. the method for claim 1 is characterized in that, said method also comprises:
The said EC of agency sends to the said next one with said round cut plan and acts on behalf of EC, and deletes the said round cut plan of self preserving.
7. encoder EC; Be applied to comprise in the supervisory control system of video management server VM, streaming media server MS, decoder DC and a plurality of EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; It is characterized in that, when said encoder EC as current need to said DC send data act on behalf of EC the time, said EC comprises:
First receiver module is used to receive the round cut plan from said VM;
Determination module is used for confirming that according to the calculated round cut temporal information of said round cut the next one acts on behalf of EC;
First sending module is used for acting on behalf of EC to the said next one and sends first request message, carries IP address and the receiving port information of said MS in said first request message;
Second receiver module is used to receive first response message of acting on behalf of EC from the said next one, carries the transmit port information that the said next one is acted on behalf of EC in said first response message;
Second sending module is used for sending second request message to said MS, carries IP address and transmit port information that the said next one is acted on behalf of EC in said second request message;
The 3rd receiver module is used to receive second response message from said MS;
The 3rd sending module is used to notify the said next one to act on behalf of EC and sends data according to IP address and the receiving port information of said MS.
8. method as claimed in claim 7 is characterized in that,
Said first sending module is used for that also said round cut plan is sent to the said next one and acts on behalf of EC, and deletes the said round cut plan of self preserving.
9. streaming media server MS; Be applied to comprise in the supervisory control system of video management server VM, said MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; It is characterized in that said MS comprises:
Receiver module is used to receive from current and need sends second request message of acting on behalf of EC of data to said DC, carries IP address and transmit port information that the next one is acted on behalf of EC in said second request message;
Processing module, the IP address and the transmit port information updating that are used for the said next one is acted on behalf of EC are to the corresponding forwarding-table item of said DC;
Sending module is used for sending second response message to the said EC of agency.
10. MS as claimed in claim 9 is characterized in that, also carries IP address and the receiving port information of said DC in said second request message;
Said processing module specifically is used for IP address and receiving port information inquiry forwarding-table item through said DC, records IP address and the transmit port information of the said EC of agency in the said forwarding-table item;
And act on behalf of the IP address of acting on behalf of EC and the transmit port information that writes down in IP address and the transmit port information replacement forwarding-table item of EC through the said next one.
11. MS as claimed in claim 9 is characterized in that, also carries IP address and the receiving port information of said DC in said second request message;
Said sending module specifically is used for IP address and receiving port information inquiry forwarding-table item through said DC, records IP address and the transmit port information of the said EC of agency in the said forwarding-table item;
If have only said DC correspondence that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then send the said EC of agency of indication and stop to send second response message of data to the said EC of agency;
If have other DC correspondences that IP address and the transmit port information of the said EC of agency are arranged in the forwarding-table item, then send said second response message of acting on behalf of EC continuation transmission data of indication to the said EC of agency.
12. video management server VM; Be applied to comprise in the supervisory control system of said VM, streaming media server MS, decoder DC and a plurality of encoder EC; Said VM is provided with the round cut plan of the said a plurality of EC data of said DC program request, and said round cut comprises the IP address of said DC, IP address and the round cut temporal information of each EC in the works; It is characterized in that said VM comprises:
Sending module; Be used for when knowing that according to said round cut temporal information round cut begins; Set up session connection and the current session connection of acting on behalf of EC and said MS from data to said DC that need send of said DC and said MS, and said round cut plan is sent to the said EC of agency;
Enquiry module is used for when knowing that according to said round cut temporal information the corresponding round cut of said DC stops, the IP address of the said DC of inquiry and the corresponding IP address of acting on behalf of EC and the transmit port information of receiving port information the forwarding-table item from MS;
Release module is used for discharging the session connection of acting on behalf of EC and MS according to the IP address of acting on behalf of EC and transmit port information, and the session connection that discharges said DC and said MS according to IP address and the receiving port information of DC.
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| CN201110170852.1A CN102333074B (en) | 2011-06-23 | 2011-06-23 | Method and equipment for transmitting data in monitoring system |
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| CN201110170852.1A CN102333074B (en) | 2011-06-23 | 2011-06-23 | Method and equipment for transmitting data in monitoring system |
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| JP2003153165A (en) * | 2001-11-19 | 2003-05-23 | Mitsubishi Electric Corp | System for video monitoring |
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| CN102333074B (en) | 2014-01-01 |
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