CN109450911A - A kind of across a network stream medium data transmission system and method - Google Patents
A kind of across a network stream medium data transmission system and method Download PDFInfo
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- CN109450911A CN109450911A CN201811420039.3A CN201811420039A CN109450911A CN 109450911 A CN109450911 A CN 109450911A CN 201811420039 A CN201811420039 A CN 201811420039A CN 109450911 A CN109450911 A CN 109450911A
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention belongs to stream media technology field, disclosing a kind of across a network stream medium data transmission system and method, system includes management client, service managing server, streaming media server and network address translation services device；Management client acquires video flowing, sends video playing request to service managing server, and draw stream broadcasting from streaming media server by the response message that service managing server returns；Service managing server analysis request selects streaming media server according to each streaming media server load state, includes the response message that video draws stream address to client return by request push video camera stream medium data to selected streaming media server；Streaming media server provides streaming media service；Internal address is mapped to public network by network address translation services device, and public network user is allowed to access Intranet resource；Method based on the system can be carried and largely concurrently be accessed, and easily be checked inside local area network, the video monitoring picture between local area network and between local area network and public network.
Description
Technical field
The invention belongs to stream media technology field, more particularly, to a kind of across a network stream medium data transmission system and
Method.
Background technique
Stream media technology is a kind of technology for transmitting the multi-medium datas such as audio, video by stream socket, Yong Huke
To play in downloading, it is not necessarily to complete downloading data file.Field is broadcast live in security industry and internet, stream media technology obtains
It is widely applied.With the improvement of living standards, people are also gradually promoting the attention rate of safety, the demand to monitoring is got over
Come it is more, therewith monitor network scale continuous enlargement, access monitoring network number of devices constantly increase.Current internet industry
Business flourishes, and video surveillance point is also no longer limited to a local area network, gradually expands in multiple local area networks or public network.Such as
What is efficient to manage the current huge video surveillance network across multiple local area networks or public network, becomes one and urgently to be resolved asks
Topic.
In current main-stream design, in order to timely respond to user's request, load-balancing mechanism is introduced, by requesting user
It is forwarded to the lesser server of load and completes scheduling of resource, but the prior art passes through timing acquisition streaming media server operation letter
Breath, such as CPU, memory, to obtain streaming media server dynamic load size, so as to application load balancing strategy, which increase
The complexity of operation.In real time monitoring field, multiple users are checked with the situation of the same monitoring point video pictures, if still pressing
Load-balancing mechanism dispatches resource, then needs repeatedly to pull the monitoring point video resource, this within the same period
The situation for repeatedly pulling camera video resource may cause the overload of monitoring point video camera service ability, refusal service, while
Cause a large amount of wastes of bandwidth resources.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of across a network transmission of flow media data
System and method, its object is to combine broadcasting content application load balancing mechanism and preset load threshold to carry largely
Concurrently access, reliable service is provided.
To achieve the above object, according to one aspect of the present invention, a kind of across a network transmission of flow media data system is provided
System, including managing customer management end, service managing server, streaming media server and network address translation services device；
Wherein, managing customer management end sends video playing request to service managing server, obtains for acquiring video flowing
Response message is taken, and draws stream broadcasting from streaming media server by the response message that service managing server returns；
Service managing server is used to parse the request of management client transmission, determines streaming media server load state,
And for selecting streaming media server according to each streaming media server load state, video camera is pushed by the request of management client
For stream medium data to selected streaming media server, returning to management client includes that video draws the response message or sound for flowing address
It should order；
Streaming media server is for providing streaming media service；Network address translation services device is for internal address to be mapped to
Public network allows public network user to access Intranet resource.
Preferably, management client includes multiple video cameras, video camera management platform and video playing management client；
Video playing management client sends video playing request for showing video resource to be played, to service managing server, presses
The video that service managing server returns draws stream address to draw stream broadcasting from streaming media server.
Purpose to realize the present invention, other side according to the invention are based on above-mentioned across a network transmission of flow media data
System provides a kind of across a network streaming media data transmission method, includes the following steps:
(1) pass through management client hair when receiving user with the managing correlation service server of management client associated connection
The request sent checks that video camera real-time pictures instruct, and obtains the corresponding source service managing server of video camera to be viewed according to instruction
Information enters step (2)；
(2) managing correlation service server judges that above-mentioned source service managing server and this managing correlation service server are
No is identical service managing server；If so, entering step (3)；Otherwise, (4) are entered step；
(3) managing correlation service server draws stream address according to the video of own cache data acquisition video camera, and to pipe
It manages client and returns to the response message for drawing stream address comprising video, enter step (7)；
(4) managing correlation service server judges the resource information that video camera whether is had existed in own cache, if
The video for then obtaining video camera draws stream address, and the response message that stream address is drawn comprising video is returned to management client；If it is not,
Managing correlation service server checks that video camera real-time pictures instruct to the forwarding request of source service managing server, enters step
(5)；
(5) source service managing server receives request and checks instruction, according to the video of own cache data acquisition video camera
Stream address is drawn, and returns to the response message for drawing stream address comprising video to managing correlation service server, enters step (6)；
(6) managing correlation service server receives response message, and the video in information draws stream address in Ben Guan according to response
The video for obtaining video camera in connection service managing server network again draws stream address, and returning to management client includes video
The response message for drawing stream address, enters step (7)；
(7) management client receives response message, and the video in information draws stream address from streaming media server according to response
Draw stream broadcasting.
Preferably, above-mentioned across a network streaming media data transmission method, the managing correlation service of management client associated connection
Server is that optionally, specific optional managing correlation service server is by being pre-configured with setting.
Preferably, above-mentioned across a network streaming media data transmission method, video camera and source service managing server in Intranet
Corresponding relationship by being pre-configured with setting, the video camera in public network is then without specific corresponding source service managing server, specifically
Corresponding source service managing server is obtained by inquiry global buffer or database.
Preferably, above-mentioned across a network streaming media data transmission method, the video for obtaining video camera draw the method packet of stream address
It includes:
If there being the resource information of video camera to be viewed in service managing server caching, and current camera is regarded
Frequency resource increased load be no more than for the video camera service streaming media server load threshold, then directly from business pipe
Manage the video drawing stream address that video camera is obtained in the cache resources of server；
If the resource information or the service managing server that do not have video camera to be viewed in service managing server caching are slow
There is the resource information of video camera to be viewed in depositing, but has been more than to be taken the photograph for this to the increased load of current camera video resource institute
The load threshold of the streaming media server of camera service is then handled as follows:
(a) video camera Media Stream addresses are determined, which is that video camera draws stream address or returns from source service managing server
The video returned draws stream address；
(b) the smallest streaming media server of load in network where searching service managing server；
(c) it is generated and is regarded by normal stream media address format according to the information of the streaming media server found in step (b)
Frequency draws stream address；
(d) stream address is drawn according to the video generated in step (c), service managing server pushes the described address step (a)
The streaming media server that the media stream data at place is found into step (b)；
It (e) will be in the caching of camera resource information write-in service managing server that stream address drawn comprising video；
(f) video of the video camera generated in return step (b) draws stream address.
Preferably, above-mentioned across a network streaming media data transmission method, the video for obtaining video camera are drawn in the method for stream address,
The method for determining streaming media server load are as follows:
Different priority, each corresponding power of priority setting are arranged to different live streamings, program request and other playitems
Weight；Server load=∑ live streaming item * live streaming priority weighting+∑ program request item * program request priority weighting+other of ∑ * is other
Priority weighting.
Preferably, above-mentioned across a network streaming media data transmission method is being no more than streaming media server hardware service ability
Under the premise of by above-mentioned streaming media server load determine method preset streaming media server load threshold.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
1, across a network stream medium data transmission system provided by the invention and method can effectively manage the big of across a network
Scale video surveillance network can be checked easily inside local area network, the view between local area network and between local area network and public network
Frequency monitored picture can carry and largely concurrently access and provide reliable service, have preferable user experience；
2, across a network stream medium data transmission system provided by the invention and method, by determining streaming media server in advance
User's request is forwarded to the lesser streaming media server of load, reduces the workload of server, be conducive to service by load
Device quick response, efficiently completes scheduling of resource；
3, across a network stream medium data transmission system provided by the invention and method, according to service capability of stream media server
Load threshold is preset, when determining payload size, without being interacted with streaming media server, is directly obtained from service managing server
Load information is taken, a large amount of interworkings are saved, it is more convenient to operate；
4, across a network stream medium data transmission system provided by the invention and method, according to video monitoring feature, when multiple
When user checks the video pictures of the same monitoring point, selectable application load balancing mechanism be can reduce hard to video camera
Cost and bandwidth resources are saved in the requirement of part service ability.
Detailed description of the invention
Fig. 1 is the functional block diagram of across a network stream medium data transmission system provided in an embodiment of the present invention.
Fig. 2 is the structure chart of across a network stream medium data transmission system provided in an embodiment of the present invention.
Fig. 3 is the flow chart of streaming media data transmission method of the present invention.
Fig. 4 is the flow chart that the present invention obtains that video draws stream address approach.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below
Not constituting a conflict with each other can be combined with each other.
Referring to Fig.1, be embodiment provide across a network stream medium data transmission system functional block diagram, including with business pipe
Manage streaming media server A, streaming media server B, management client and network address translation that server has communication connection
Server；Service managing server is also connected with video camera.
Referring to Fig. 2, it is the schematic network structure for the across a network stream medium data transmission system that embodiment provides, shows here
3 networks, Intranet 101,102 and public network 103 are gone out.Intranet is connected by network address translation services device with public network, in Intranet
It is connected between each equipment in portion by network.Management client 11x is used to send playing request to service managing server, obtains and rings
Answer information, and from streaming media server pull media stream broadcasting.Service managing server 12x is for receiving and parsing through managing customer
Playing request is held, the media of push video camera 15x flow to streaming media server.Streaming media server 13x is for receiving and caching
The Media Stream of service managing server push, while distributing media and flowing to different management clients.Network address translation services
Device 14x is used to internal address being mapped to public network, accesses Intranet resource convenient for public network user.
It is the flow diagram of across a network streaming media data transmission method provided in an embodiment of the present invention referring to Fig. 3, below
It is described in detail in conjunction with specific embodiments.
Embodiment 1: Intranet user checks the application scenarios of public network video camera real-time pictures.
1, user logs in the management client 111 of Intranet 101, and management client 111 connects managing correlation service server
121；
2, user prepares to check the real-time pictures of video camera 154 in public network 103 by management client 111；
3, management client 111 sends request to managing correlation service server 121 and checks 154 real-time pictures of video camera
Instruction；
4, managing correlation service server 121 receives request and checks instruction, obtains video camera to be viewed according to command information
The information of 154 corresponding source service managing servers 121；For obtaining source service managing server information, when associated services pipe
After server 121 is managed by query configuration item and global buffer, the corresponding source service managing server of video camera 154 is not found
When, directly it regard current managing correlation service server 121 as the corresponding source service managing server of video camera 154, and should
Global buffer is written in managing correlation service server info；
5, managing correlation service server 121 judges that it with source service managing server is identical service management service
Device, managing correlation service server 121 analyze own cache data, and the video for obtaining video camera 154 draws stream address, and to management
Client 111 returns to the response message that stream is drawn comprising video；
6, management client 111 receives response message, draws stream address to draw stream broadcasting from streaming media server according to video.
Embodiment 2: Intranet user checks the application scenarios of other Intranet video camera real-time pictures.
1, user logs in the management client 111 of Intranet 101, and management client 111 connects managing correlation service server
121；
2, user prepares to check the real-time pictures of video camera 153 in Intranet 102 by management client 111；
3, management client 111 sends request to managing correlation service server 121 and checks 153 real-time pictures of video camera
Instruction；
4, managing correlation service server 121 receives request and checks instruction, obtains video camera to be viewed according to command information
The information of 153 corresponding source service managing servers 122；
5, managing correlation service server 121 judges that it with source service managing server 122 is not identical service management
Server；
6, managing correlation service server 121 analyzes own cache data first, if having existed to be viewed take the photograph in caching
The resource information of camera 153, then the video for obtaining video camera draws stream address Pull-Url, and returns and wrap to management client 111
Containing the response message for drawing stream address Pull-Url, otherwise, managing correlation service server 121 is to source service managing server 122
The instruction of 153 real-time pictures of video camera is checked in forwarding request；
7, source service managing server 122 receives request and checks instruction, analyzes own cache data, obtains the view of video camera
Frequency draws stream address Pull-Url-1, and the sound comprising drawing stream address Pull-Url-1 is returned to managing correlation service server 121
Answer information；
8, managing correlation service server 121 receives response message, and the video in information draws stream address Pull- according to response
Url-1 draws stream address Pull- in the video for obtaining video camera where this managing correlation service server in Intranet 101 again
Url, and the response message comprising drawing stream address Pull-Url is returned to management client 111；
9, management client 111 receives response message, draws stream address Pull-Url to draw from streaming media server according to video
Stream broadcasting.
In the above-mentioned steps 6,7,8 of the present embodiment, the video for obtaining video camera draws stream address to handle as follows:
If the resource information of existing video camera 153 to be viewed in service managing server caching, and increase when proactive
The video resource load of camera does not exceed the load threshold of the streaming media server for the video camera service, then video camera 153
Video draw stream address can directly be obtained from the cache resources of service managing server；
If there is no the resource information of video camera 153 to be viewed or service management clothes in service managing server caching
The resource information of existing video camera 153 to be viewed in business device caching, but increase the video resource load meeting of current camera
More than the load threshold of the streaming media server for the video camera service, then stream address approach is drawn referring to the video that obtains of Fig. 4
Flow chart is handled as follows:
(301) video camera Media Stream addresses are determined.For step 6,8, which is from source service management service
The video that device 122 returns draws stream address；For step 7, which is the drawing stream address that video camera 153 provides itself；
(302) the smallest streaming media server of load in network where searching service managing server.For step 6,8,
Service managing server refers to 121, and place network is Intranet 101；For step 7, service managing server refers to 122, where
Network is Intranet 102；
(303) according to the information of the streaming media server found in step (302) by normal stream media address format, such as
The media stream formats such as rtsp, rtmp and hls generate video and draw stream address Pull-Url；
(304) stream address Pull-Url is drawn according to the video generated in step (303), service managing server pushes step
(301) streaming media server that the media stream data at the address is found in step (302)；
(305) the slow of the camera resource information write-in service managing server of stream address Pull-Url will be drawn comprising video
In depositing；For step 6,8, service managing server refers to 121；For step 7, service managing server refers to 122；
(306) camera video generated in return step (302) draws stream address Pull-Url.
Across a network stream medium data transmission system provided by the invention and method, in conjunction with broadcasting content application load balancing machine
Load threshold is made and preset, can carry and largely concurrently access and provide reliable service, can easily check office
Domain is netted between internal, local area network and the video monitoring picture between local area network and public network, has preferable user experience.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of across a network stream medium data transmission system, which is characterized in that including management client, service managing server,
Streaming media server and network address translation services device；
The management client sends video playing request for acquiring video flowing, to service managing server, obtains response letter
Breath, and stream broadcasting is drawn from streaming media server by the response message that service managing server returns；
The service managing server is used to parse the request of management client transmission, determines streaming media server load state,
And streaming media server is selected according to each streaming media server load state, video camera stream matchmaker is pushed by the request of management client
For volume data to selected streaming media server, returning to management client includes that video draws the response message for flowing address；
The streaming media server is for providing streaming media service；Network address translation services device is for internal address to be mapped to
Public network allows public network user to access Intranet resource.
2. across a network stream medium data transmission system as described in claim 1, which is characterized in that the management client includes
Multiple video cameras, video camera management platform and video playing management client；The video playing management client is for showing
Show video resource to be played, sends video playing request, the video returned by service managing server to service managing server
Stream address is drawn to draw stream broadcasting from streaming media server.
3. a kind of across a network stream medium data based on the across a network stream medium data transmission system described in claim 1~2 passes
Transmission method, which comprises the steps of:
(1) when receiving what user was sent by management client with the managing correlation service server of management client associated connection
Request checks that video camera real-time pictures instruct, and obtains the corresponding source service managing server of video camera to be viewed according to instruction and believes
Breath, enters step (2)；
(2) managing correlation service server judge above-mentioned source service managing server and this managing correlation service server whether be
Identical service managing server；If so, entering step (3)；Otherwise, (4) are entered step；
(3) managing correlation service server draws stream address according to the video of own cache data acquisition video camera, and objective to management
Family end returns to the response message that stream address is drawn comprising video, enters step (7)；
(4) managing correlation service server judges the resource information that video camera whether is had existed in own cache, if then obtaining
It takes the video of video camera to draw stream address, and returns to the response message for drawing stream address comprising video to management client；If it is not, association
Service managing server checks that video camera real-time pictures instruct to the forwarding request of source service managing server, enters step (5)；
(5) source service managing server receives request and checks instruction, is drawn and is flowed according to the video of own cache data acquisition video camera
Address, and the response message that stream address is drawn comprising video is returned to managing correlation service server, enter step (6)；
(6) managing correlation service server receives response message, and the video in information draws stream address in this association industry according to response
The video for obtaining video camera in business management server network again draws stream address, and returns to management client and draw stream comprising video
The response message of address enters step (7)；
(7) management client receives response message, and the video in information draws stream address to draw from streaming media server and flows according to response
It plays.
4. across a network streaming media data transmission method as claimed in claim 3, which is characterized in that management client associated connection
Managing correlation service server be it is optional, specific optional managing correlation service server is by being pre-configured with setting.
5. across a network streaming media data transmission method as described in claim 3 or 4, which is characterized in that the video camera in Intranet
Corresponding relationship with source service managing server is by being pre-configured with setting, and the video camera in public network is then without specific corresponding source industry
Business management server, specific corresponding source service managing server are obtained by inquiry global buffer or database.
6. across a network streaming media data transmission method as described in claim 3 or 4, which is characterized in that obtain the view of video camera
Frequently the method for drawing stream address includes:
If there being the resource information of video camera to be viewed in service managing server caching, and current camera video is provided
Source increased load be no more than for the video camera service streaming media server load threshold, then directly from service management take
The video for being engaged in obtaining video camera in the cache resources of device draws stream address；
If not having in the resource information or service managing server caching of video camera to be viewed in service managing server caching
There is the resource information of video camera to be viewed, but being more than to the increased load of current camera video resource institute is the video camera
The load threshold of the streaming media server of service is then handled as follows:
(a) video camera Media Stream addresses are determined, which is that video camera draws stream address or returns from source service managing server
Video draws stream address；
(b) the smallest streaming media server of load in network where searching service managing server；
(c) video is generated by normal stream media address format according to the information of the streaming media server found in step (b) to draw
Flow address；
(d) stream address is drawn according to the video generated in step (c), service managing server pushes at the described address step (a)
The streaming media server that media stream data is found into step (b)；
It (e) will be in the caching of camera resource information write-in service managing server that stream address drawn comprising video；
(f) video of the video camera generated in return step (b) draws stream address.
7. across a network streaming media data transmission method as described in claim 3 or 4, which is characterized in that obtain the view of video camera
Frequency is drawn in the method for stream address, the method for determining streaming media server load are as follows:
Different priority is arranged to different live streamings, program request and other playitems, corresponding weight is arranged in each priority；Clothes
Priority weighting+∑ program request item * program request priority weighting+other priority of other of ∑ * are broadcast live in business device load=∑ live streaming item *
Weight.
8. across a network streaming media data transmission method as claimed in claim 7, which is characterized in that be no more than streaming media service
Under the premise of device hardware service ability, the method for determination is loaded by streaming media server and presets streaming media server load threshold
Value.
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| CN111601073A (en) * | 2020-04-15 | 2020-08-28 | 深圳新贝奥科技有限公司 | Method for pushing video code stream to cloud server through local area network |
| CN112087596A (en) * | 2019-06-14 | 2020-12-15 | 杭州海康威视系统技术有限公司 | Method for determining media stream transmission mode and media stream transmission system |
| CN112423146A (en) * | 2019-08-21 | 2021-02-26 | 亦非云互联网技术（上海）有限公司 | Playing data acquisition and pushing method, system, medium, server and playing terminal |
| CN112769890A (en) * | 2020-11-25 | 2021-05-07 | 杭州视洞科技有限公司 | Flow forwarding optimization method for uploading large flow to small amount of live scenes |
| CN113852593A (en) * | 2021-07-20 | 2021-12-28 | 浪潮软件科技有限公司 | Deployment system and method of distributed streaming media cluster |
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| CN114401453A (en) * | 2022-01-14 | 2022-04-26 | 京东方科技集团股份有限公司 | Data processing method, device, computing equipment and medium |
| CN114500940A (en) * | 2022-01-14 | 2022-05-13 | 成都数字家园科技有限公司 | Video hardware coding and decoding and video forwarding method based on local deployment |
| CN114697090A (en) * | 2022-03-17 | 2022-07-01 | 北京声智科技有限公司 | System, method, device, storage medium and product for acquiring streaming media |
| CN116708381A (en) * | 2023-08-04 | 2023-09-05 | 腾讯科技（深圳）有限公司 | Cross-network data transmission method and device, storage medium and electronic equipment |
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