CN103167275B - Network video monitor and control system and stream medium data distribution method thereof - Google Patents
Network video monitor and control system and stream medium data distribution method thereof Download PDFInfo
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- CN103167275B CN103167275B CN201110423244.7A CN201110423244A CN103167275B CN 103167275 B CN103167275 B CN 103167275B CN 201110423244 A CN201110423244 A CN 201110423244A CN 103167275 B CN103167275 B CN 103167275B
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Abstract
The invention discloses a kind of network video monitor and control system and stream medium data distribution method thereof, wherein this system comprises: headend equipment, for providing stream medium data; Intermediate conveyor and Control Server, the reception of the stream medium data that the access of responsible described headend equipment and described headend equipment send, and temporary described stream medium data; Client, for selecting required headend equipment, send corresponding order to described intermediate conveyor and Control Server, obtain headend equipment needed for described client and host-host protocol by described intermediate conveyor and Control Server according to this order, and the stream medium data that the headend equipment needed for described client sends is sent to described client according to the host-host protocol needed for described client.The present invention not only can make the streaming media of headend equipment more stable, meets the requirement that the transmission of current streaming media needs differing transmission protocols simultaneously.
Description
Technical field
The invention belongs to field of multimedia communication, particularly a kind of network video monitor and control system and stream medium data distribution method thereof.
Background technology
Network video monitor and control system forms primarily of headend equipment, intermediate conveyor and Control Server and client.Client is connected by intermediate conveyor and Control Server and headend equipment, intermediate conveyor and Control Server are responsible for the reception of access to headend equipment and stream medium data, the stream medium data that temporary headend equipment is sent, simultaneously the transferring order respective streams media data of customer in response end.
Current video monitoring system trends towards networking, digitlization, scale is more and more huger, the quantity of headend equipment and kind get more and more, client terminal quantity also gets more and more simultaneously, even there is far call situation, therefore, in existing video monitoring system, mainly there are following problems in intermediate conveyor and Control Server:
1) increasing along with headend equipment kind, and the upgrading of relevant device, the Streaming transfer protocol of often kind of headend equipment support is often different, and as UDP, TCP etc., this just requires that intermediate server must support institute's protocols having.On the other hand, when each client obtains headend equipment stream medium data by intermediate server, the host-host protocol taked can oneself be specified, and therefore intermediate conveyor and Control Server must provide to transmit according to the host-host protocol of client requirements and support.In a word, intermediate conveyor and Control Server must for often kind of headend equipment support or the host-host protocol of client requirements develop, add the workload of staff.
2) along with web development, video monitoring range is more and more wider, client is also not only confined to a certain region, therefore the quantity of client also considerably increases, this increases greatly by making the load of intermediate conveyor and Control Server, therefore how the effective stream medium data to headend equipment is distributed, and is a problem anxious to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of network video monitor and control system and stream medium data distribution method thereof, what the stream medium data employing multi-protocols distribution technology for being inputted by headend equipment was efficient, real-time transfers to multiple client.
To achieve these goals, the invention provides a kind of network video monitor and control system, it is characterized in that, comprising:
Headend equipment, for providing stream medium data;
Intermediate conveyor and Control Server, connect described headend equipment, the reception of the stream medium data that the access of responsible described headend equipment and described headend equipment send, and temporary described stream medium data;
Client, connect described intermediate conveyor and Control Server, for selecting required headend equipment, send corresponding order to described intermediate conveyor and Control Server, obtain headend equipment needed for described client and host-host protocol by described intermediate conveyor and Control Server according to this order, and the stream medium data that the headend equipment needed for described client sends is sent to described client according to the host-host protocol needed for described client.
Described network video monitor and control system, wherein, described passage comprises protocol list, client side list, the correspondence client side list in each protocol list.
Described network video monitor and control system, wherein, described intermediate conveyor and Control Server comprise further:
Access module, for identifying described headend equipment and automatically access, selects the host-host protocol that described headend equipment is supported, and sets up the reception buffer memory be connected with the transmission of stream medium data between described headend equipment and for storing described stream medium data;
Control module, connect described access module, for setting up the passage corresponding with described headend equipment, make described reception buffer memory and described passage one_to_one corresponding, respond described order, resolve the headend equipment needed for described client and host-host protocol, and headend equipment needed for described client and host-host protocol judge whether to there is the passage corresponding with the headend equipment needed for described client, if do not exist, then create this passage, and when there is the host-host protocol needed for described client in the protocol list of this passage, client-side information is joined in client side list corresponding with this host-host protocol in this passage,
Protocol module, connects described control module, for storing the host-host protocol that described intermediate conveyor and Control Server are supported;
Sending module, connect described access module, described control module, for traveling through protocol list in all passages and this passage and client side list, by this passage, the stream medium data in reception buffer memory corresponding for this passage is sent to the client selecting this required headend equipment according to differing transmission protocols.
Described network video monitor and control system, wherein, described access module further according to the required parameter that described headend equipment sends, and parses the host-host protocol of described headend equipment support from this required parameter.
Described network video monitor and control system, wherein, it is be connected with the unidirectional of Control Server by described headend equipment to described intermediate conveyor that the transmission that described access module is set up connects.
Described network video monitor and control system, wherein, described headend equipment, described intermediate conveyor and Control Server, described client are multiple, described client comprises L 1 customer end and secondary client, this secondary client's side link described intermediate conveyor and Control Server, this L 1 customer end connects all described intermediate conveyor and Control Server simultaneously.
Described network video monitor and control system, wherein, it is unique that each described headend equipment is connected with the transfer of data between Control Server with described intermediate conveyor, and each described client and the expanding channels between described intermediate conveyor and Control Server are not unique.
To achieve these goals, the invention provides a kind of stream medium data distribution method of network video monitor and control system, it is characterized in that, comprising:
Step one, headend equipment access intermediate conveyor and Control Server, the transmission that described intermediate conveyor sets up stream medium data between described headend equipment with Control Server is connected;
Step 2, the headend equipment needed for client selection, sends the corresponding command to described intermediate conveyor and Control Server;
Step 3, described intermediate conveyor and Control Server obtain headend equipment needed for described client and host-host protocol according to this order, and according to the host-host protocol needed for described client, the stream medium data that the headend equipment needed for described client sends is sent to described client.
Described stream medium data distribution method, wherein, in described step one, comprises further:
Described intermediate conveyor and Control Server automatically identify the host-host protocol that this headend equipment is supported, and set up a reception buffer memory to store the stream medium data received from described headend equipment.
Described stream medium data distribution method, wherein, in described step one, comprises further:
The required parameter that described intermediate conveyor and Control Server send according to described headend equipment, parses the host-host protocol that described headend equipment is supported from this parameter.
Described stream medium data distribution method, wherein, described step one comprises:
It is be connected with the unidirectional of Control Server by described headend equipment to described intermediate conveyor that described transmission connects.
Described stream medium data distribution method, wherein, in described step 3, comprises further:
Described intermediate conveyor sets up the passage corresponding with described headend equipment with Control Server, make described reception buffer memory and described passage one_to_one corresponding, headend equipment needed for described client and host-host protocol is gone out according to described command analysis, and headend equipment needed for described client and host-host protocol search whether there is the passage corresponding with the headend equipment needed for described client, if do not exist, then create this passage, and when there is the host-host protocol needed for described client in the protocol list of this passage, client-side information is joined in client side list corresponding with this host-host protocol in this passage,
Described intermediate conveyor and Control Server travel through protocol list in all passages and described passage and client side list, by this passage, the stream medium data in reception buffer memory corresponding for this passage is sent to the client selecting this required headend equipment according to differing transmission protocols.
Described stream medium data distribution method, wherein, described passage comprises protocol list, client side list, the correspondence client side list in each protocol list.
Described stream medium data distribution method, wherein, in described step 3, comprises further:
Described stream medium data is also converted to the stream medium data of reference format by described intermediate conveyor and Control Server.
Compared with prior art, Advantageous Effects of the present invention is:
The present invention is at network video monitor and control system in the more and more huger and increasing situation of headend equipment kind, provide a kind of method transferring to multiple client that can multi-protocols distribution technology be adopted efficient, real-time headend equipment stream medium data, the method not only can make the streaming media of headend equipment more stable, meets the requirement that the transmission of current streaming media needs differing transmission protocols simultaneously.
Specifically, the present invention has the following advantages:
(1) intermediate conveyor and Control Server support all host-host protocols, can successfully and all types headend equipment set up passage, transmit corresponding stream medium data.And the stream medium data that can will receive, in different formats, differing transmission protocols forwards.Network video monitor and control system can be made so successfully to access all headend equipments, there is extraordinary compatibility.
(2) intermediate conveyor and Control Server adopt channel mode, the structure that a multiple different agreement of input exports, and greatly facilitate the distribution of stream medium data, can meet the requirement of differing transmission protocols simultaneously, have feature that is efficient, stable transfer.
Accompanying drawing explanation
Fig. 1 is the structure chart of network video monitor and control system of the present invention;
Fig. 2 is network video monitor and control system operating diagram of the present invention;
Fig. 3 is intermediate conveyor of the present invention and Control Server operating diagram;
Fig. 4 is channel design schematic diagram of the present invention;
Fig. 5 is the stream medium data distribution method flow chart of network video monitor and control system of the present invention.
Embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
As shown in Figure 1, be the structure chart of network video monitor and control system of the present invention, Fig. 2 is network video monitor and control system operating diagram of the present invention; Fig. 3 is intermediate conveyor of the present invention and Control Server operating diagram, and Fig. 4 is channel design schematic diagram of the present invention.
This network video monitor and control system 100 mainly comprises: headend equipment 10, intermediate conveyor and Control Server 20 and client 30.
Headend equipment 10, for providing stream medium data.
Intermediate conveyor and Control Server 20 are responsible for the access of headend equipment 10 and the reception of stream medium data, the stream medium data that temporary headend equipment 20 is sent, simultaneously the transferring order respective streams media data of customer in response end 30.
Client 30 selects the headend equipment 10 needing to play, and sends the corresponding command to intermediate conveyor and Control Server 20; Intermediate conveyor and Control Server 20 resolve this order, headend equipment needed for client 30 and transport protocol type, search the passage that whether there is this headend equipment 10, if do not exist, create passage, find the protocol list in this passage afterwards, from this protocol list, find the host-host protocol that whether there is client 30 and need, if exist, then represent that this passage supports this host-host protocol.Find the client side list that in this passage, this host-host protocol is corresponding, this client-side information is joined in this client side list, now complete and the client-side information of this passage is added.If do not exist, then represent that this passage does not support this host-host protocol.
Passage is that intermediate conveyor and Control Server 20 create for each headend equipment 10, as long as there is headend equipment 10, intermediate conveyor and Control Server 20 just can be it and set up passage.
Channel design as shown in Figure 4, passage comprises protocol list and client side list, correspondence client side list in each protocol list, the stream medium data received can divide according to different host-host protocols and sends out by each passage, but also there is the host-host protocol do not supported.Judge passage whether support host-host protocol according to be exactly check this passage protocol list in whether there is the host-host protocol of client requirements.If exist, then represent that passage supports this host-host protocol, otherwise, then represent that passage does not support this host-host protocol.
Intermediate conveyor and Control Server 20 constantly travel through protocol list in the passage of all foundation and passage and client side list, by this passage, by the data in buffer memory (or claiming to receive buffer memory) corresponding for this passage, be sent to client 30 according to differing transmission protocols.
When intermediate conveyor and Control Server 20 will set up passage, then illustrate to there is headend equipment 10, show to there is certain client 30 calling this headend equipment 10 simultaneously, that is to say, only when the stream medium data having client 30 to certain headend equipment 10 has demand, intermediate conveyor and Control Server 20 just can set up passage, otherwise delete this passage.
Headend equipment 10, intermediate conveyor and Control Server 20, client 30 can have multiple.
Client 30 is divided into L 1 customer end and secondary client, secondary client is only to connect an intermediate conveyor and Control Server 20, and L 1 customer end can connect all intermediate conveyor and Control Server 20 simultaneously, L 1 customer end is responsible for the management to entirety.
It is unique that each headend equipment 10 is connected with the transfer of data between intermediate conveyor with Control Server 20, and each client 30 and the expanding channels between intermediate conveyor and Control Server 20 are not unique.
Further, intermediate conveyor and Control Server 20 comprise access module 21, control module 22, protocol module 23, sending module 24, as shown in Figure 3.
Access module 21, for the device type to headend equipment 10 identification and automatically access, be responsible for the host-host protocol selecting headend equipment 10 to support simultaneously, set up and be connected with the transmission of transport stream media data between headend equipment 10, and foundation reception buffer memory stores the stream medium data received, each reception buffer memory and passage have one-to-one relationship.
The Streaming transfer protocol that each headend equipment 10 is supported is different, therefore the host-host protocol that need support according to headend equipment 10 of access module 21, sets up the connection of intermediate conveyor and Control Server 20 and headend equipment 10.
Further, the required parameter that access module 21 sends according to this headend equipment 10, the host-host protocol that this headend equipment 10 is supported is parsed from this parameter, it is be connected with the unidirectional of Control Server 20 by this headend equipment 10 to intermediate conveyor that the transmission of setting up connects, and real-time constantly transport stream media data.
Further, access module 21 carries out buffer memory by the buffer memory (or being called reception buffer memory) set up to the stream medium data received from headend equipment 10, and be consolidation form by the format conversion of various flows media data, for other module provides unified Streaming Media interface.
Control module 22, connect access module 21, be responsible for the order of customer in response end 30, parse the headend equipment 10 of requirement and judge required host-host protocol, afterwards this client-side information being joined in client side list corresponding with this host-host protocol in respective channel;
Further, control module 22 is also in charge of protocol module 23 and is set up passage, and is responsible for upgrading channel information, and makes each reception buffer memory and passage have one-to-one relationship.
The content that control module 22 upgrades channel information comprises: the information of adding new client, or the information of deleting certain client, and adds or delete the Streaming transfer protocol of passage support.
Further, control module 22 is also after parsing the headend equipment 10 that client 30 needs to call and the transport protocol type supported, judge whether to support this protocol type and whether there is this headend equipment 10, if satisfy condition, then this client-side information is joined in client side list corresponding with this host-host protocol in respective channel.
Protocol module 23, institute's protocols having that storage intermediate conveyor and Control Server 20 are supported, is managed by control module 22;
Sending module 24, is responsible for the stream medium data from headend equipment 10, is given the client 30 of this headend equipment 10 of all requests by respective channel, requires to be sent to client 30 according to different agreement.
Further, the data in reception buffer memory corresponding for this passage are sent to client 30 by differing transmission protocols by the protocol list of sending module 24 also constantly in the passage of all foundation of traversal and passage and client side list.
In a preferred embodiment, headend equipment 10 can be any manufacturer, any type product, and intermediate conveyor and Control Server 20 adopt the mode of two-node cluster hot backup.
Further, intermediate conveyor and Control Server 20 mainly provide three functions: access the stream medium data that headend equipment 10 and receiving front-end equipment 10 send, customer in response end 30 call video flowing request, forward or distribution flow media data.On this basis, defining the interface that intermediate conveyor and Control Server 20 have is: the access interface accessed with headend equipment 10, and headend equipment 10 carry out transmission of flow media data coffret, respond the data-interface that back-end client holds the request interface of 30 video flowing requests, forwarding or distribution flow media data.
As shown in Figure 4, passage is used to transport stream media data, and control module 22 sets up the passage of each headend equipment 10, and the passage of each headend equipment 10 correspondence is unique, can corresponding multichannel data below each passage, and support the transmission of polytype agreement.
The key component of passage is made up of list, and one-level is protocol list, and secondary is client side list, the correspondence client side list in each protocol list.The stream medium data being input as certain headend equipment 10 of passage, and output is multichannel, the corresponding client in each road.
As shown in Figure 5, be the stream medium data distribution method flow chart of network video monitor and control system of the present invention.Composition graphs 1-4, this flow process specifically comprises the steps:
Step 501, certain headend equipment 10 is connected with Control Server 20 with intermediate conveyor, intermediate conveyor and Control Server 20 automatically identify this headend equipment 10 by access module 21, select the Streaming transfer protocol that this headend equipment 10 is supported, set up and be connected with the transmission of flow media data between this headend equipment 10, and set up reception buffer memory and store the stream medium data received, carry out the format conversion of stream medium data whenever necessary;
Further, in this step, the required parameter that access module 21 sends according to this headend equipment 10, the Streaming transfer protocol that this headend equipment 10 is supported is parsed from this parameter, it is be connected with the unidirectional of Control Server 20 by this headend equipment 10 to intermediate conveyor that the transmission of setting up connects, and real-time constantly transport stream media data.
Step 502, client 30 selects the headend equipment 10 needing to play, and sends the corresponding command to intermediate conveyor and Control Server 20, intermediate conveyor and Control Server 20 resolve the order of sending from client 30 by control module 22, according to required headend equipment and transport protocol type, search the passage that whether there is this headend equipment 10, there is not passage, then create this passage, if exist, then do not need to create, find the protocol list in this passage afterwards, the host-host protocol that whether there is client and need is found from this protocol list, if exist, then represent that this passage supports this host-host protocol, find the client side list that in this passage, this host-host protocol is corresponding, this client-side information is joined in this client side list,
Further, in this step, control module 22 invocation protocol module 23, and set up passage, after control module 22 parses the headend equipment 10 that client 30 needs to call and the host-host protocol supported, judge whether to support this protocol type and whether there is this headend equipment 10, if satisfy condition, then this client-side information being joined in client side list corresponding with this host-host protocol in respective channel.
Step 503, the protocol list of sending module 24 constantly in the passage of all foundation of traversal and passage and client side list, by this passage, by the data in reception buffer memory corresponding for this passage, be sent to client 30 according to differing transmission protocols.
Further, in this step, passage is used to transport stream media data, and the passage of each headend equipment 10 is set up by control module 22, the passage of each headend equipment 10 correspondence is unique, can corresponding multichannel data below each passage, and supports the transmission of polytype agreement.
Further, in this step, the stream medium data that intermediate conveyor and Control Server 20 are distributed, it is the stream medium data converting reference format to, and be stored in corresponding reception buffer memory, sending module 24 receives reading flow media data buffer memory accordingly from this, then from the passage of correspondence, stream medium data is distributed to client 30 according to different host-host protocols.
Further, in this step, each reception buffer memory and passage have one-to-one relationship, and after the data received in buffer memory are sent to respective channel, Data dissemination is gone out by self transmission list by passage again.
The invention provides a kind of method transferring to multiple client that can multi-protocols distribution technology be adopted efficient, real-time headend equipment stream medium data, the method not only can make the streaming media of headend equipment more stable, meets the requirement that the transmission of current streaming media needs differing transmission protocols simultaneously.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (10)
1. a network video monitor and control system, is characterized in that, comprising:
Headend equipment, for providing stream medium data;
Intermediate conveyor and Control Server, connect described headend equipment, the reception of the stream medium data that the access of responsible described headend equipment and described headend equipment send, and temporary described stream medium data;
Client, connect described intermediate conveyor and Control Server, for selecting required headend equipment, send corresponding order to described intermediate conveyor and Control Server, obtain headend equipment needed for described client and host-host protocol by described intermediate conveyor and Control Server according to this order, and the stream medium data that the headend equipment needed for described client sends is sent to described client according to the host-host protocol needed for described client;
Described intermediate conveyor and Control Server comprise further:
Access module, for identifying described headend equipment and automatically access, selects the host-host protocol that described headend equipment is supported, and sets up the reception buffer memory be connected with the transmission of stream medium data between described headend equipment and for storing described stream medium data;
Control module, connect described access module, for setting up the passage corresponding with described headend equipment, make described reception buffer memory and described passage one_to_one corresponding, respond described order, resolve the headend equipment needed for described client and host-host protocol, and headend equipment needed for described client and host-host protocol judge whether to there is the passage corresponding with the headend equipment needed for described client, if do not exist, then create this passage, and when there is the host-host protocol needed for described client in the protocol list of this passage, client-side information is joined in client side list corresponding with this host-host protocol in this passage,
Protocol module, connects described control module, for storing the host-host protocol that described intermediate conveyor and Control Server are supported;
Sending module, connect described access module, described control module, for traveling through protocol list in all passages and all passages and client side list, by all passages, the stream medium data in reception buffer memory corresponding for all passages is sent to the client selecting this required headend equipment according to differing transmission protocols;
Described passage comprises protocol list, client side list, the correspondence client side list in each protocol list.
2. network video monitor and control system according to claim 1, is characterized in that, described access module further according to the required parameter that described headend equipment sends, and parses the host-host protocol of described headend equipment support from this required parameter.
3. network video monitor and control system according to claim 1, is characterized in that, it is be connected with the unidirectional of Control Server by described headend equipment to described intermediate conveyor that the transmission that described access module is set up connects.
4. the network video monitor and control system according to claim 1,2 or 3, it is characterized in that, described headend equipment, described intermediate conveyor and Control Server, described client are multiple, described client comprises L 1 customer end and secondary client, this secondary client's side link described intermediate conveyor and Control Server, this L 1 customer end connects all described intermediate conveyor and Control Server simultaneously.
5. network video monitor and control system according to claim 4, it is characterized in that, it is unique that each described headend equipment is connected with the transfer of data between Control Server with described intermediate conveyor, and each described client and the expanding channels between described intermediate conveyor and Control Server are not unique.
6. a stream medium data distribution method for network video monitor and control system, is characterized in that, comprising:
Step one, headend equipment access intermediate conveyor and Control Server, the transmission that described intermediate conveyor and Control Server set up stream medium data between described headend equipment is connected and reception buffer memory for storing described stream medium data;
Step 2, the headend equipment needed for client selection, sends the corresponding command to described intermediate conveyor and Control Server;
Step 3, described intermediate conveyor and Control Server obtain headend equipment needed for described client and host-host protocol according to this order, and according to the host-host protocol needed for described client, the stream medium data that the headend equipment needed for described client sends is sent to described client;
In described step 3, comprise further:
Described intermediate conveyor sets up the passage corresponding with described headend equipment with Control Server, make described reception buffer memory and described passage one_to_one corresponding, headend equipment needed for described client and host-host protocol is gone out according to described command analysis, and headend equipment needed for described client and host-host protocol search whether there is the passage corresponding with the headend equipment needed for described client, if do not exist, then create this passage, and when there is the host-host protocol needed for described client in the protocol list of this passage, client-side information is joined in client side list corresponding with this host-host protocol in this passage,
Described intermediate conveyor and Control Server travel through protocol list in all passages and all passages and client side list, by all passages, the stream medium data in reception buffer memory corresponding for all passages is sent to the client selecting this required headend equipment according to differing transmission protocols;
Described passage comprises protocol list, client side list, the correspondence client side list in each protocol list.
7. stream medium data distribution method according to claim 6, is characterized in that, in described step one, comprises further:
Described intermediate conveyor and Control Server automatically identify the host-host protocol that this headend equipment is supported, and set up a reception buffer memory to store the stream medium data received from described headend equipment.
8. stream medium data distribution method according to claim 7, is characterized in that, in described step one, comprises further:
The required parameter that described intermediate conveyor and Control Server send according to described headend equipment, parses the host-host protocol that described headend equipment is supported from this parameter.
9. stream medium data distribution method according to claim 7, is characterized in that, described step one comprises:
It is be connected with the unidirectional of Control Server by described headend equipment to described intermediate conveyor that described transmission connects.
10. the stream medium data distribution method according to claim 6,7,8 or 9, is characterized in that, in described step 3, comprises further:
Described stream medium data is also converted to the stream medium data of reference format by described intermediate conveyor and Control Server.
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| CN103167275A (en) | 2013-06-19 |
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