CN109756704A - A kind of inter-process communication methods and system of inserted audio-video monitoring system - Google Patents
A kind of inter-process communication methods and system of inserted audio-video monitoring system Download PDFInfo
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- CN109756704A CN109756704A CN201811459506.3A CN201811459506A CN109756704A CN 109756704 A CN109756704 A CN 109756704A CN 201811459506 A CN201811459506 A CN 201811459506A CN 109756704 A CN109756704 A CN 109756704A
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Abstract
The invention discloses the inter-process communication methods and system of a kind of inserted audio-video monitoring system, belong to field of security technology, comprising: the communication information in acquisition system between each process, the communication information that will acquire are divided into multi-medium data and signaling data；When the interprocess communication information of acquisition is multimedia data type, each process is divided into data source procedure, data central program and data consumption program；It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent to data center's program；Data center's program shares the corresponding audio, video data stored in shared drive to data consumption program.The present invention manages multi-medium data interaction concentratedly by using a data center, while the efficient distribution of multi-medium data is completed using shared drive, while guaranteeing each interprocess communication efficiency, also ensures the instantaneity of process communication.
Description
Technical field
The present invention relates to field of security technology, in particular to a kind of interprocess communication side of inserted audio-video monitoring system
Method and system.
Background technique
With the promotion that public safety is realized, Video Surveillance Industry is rapidly developed, Video Surveillance Industry after
After several generations development, the network transmission epoch are entered.In the network transmission epoch, the implementation of headend equipment is all high mostly
The embedded scheme that reliability and low cost are taken into account.Meanwhile with the development of embedded type CPU, performance is more and more stronger, video prison
The function of control headend equipment is not only limited to the coding of audio-video, stores and transmits, but combines internet, produces diversification
Application, therefore, the scale of embedded application software is increasing, the product of embedded front-end also tend to diversification.
In order to facilitate the data and status exchange realized between each functional module, tended under normal circumstances at one
The function of all demands is completed in system process, this way is that resource that is high-efficient and occupying is few a little, is very suitable to embedding
Enter the situation that formula processor performance is low, resource storage is insufficient.
But the code that this way will lead to individual process is excessively huge, brings that later maintenance is poor, new function addition
A series of problems, such as inconvenient and system is more difficult stable.Therefore, multiple processes are divided into there are also a kind of common method to come in fact
Existing each functional module, but since embeded processor performance is low, memory and storage resource are limited, it is this do can bring process between
Communication efficiency is low, the problems such as real-time is inadequate.
Summary of the invention
The purpose of the present invention is to provide a kind of inter-process communication methods of inserted audio-video monitoring system, more to provide
Communication efficiency between process.
In order to achieve the above object, the present invention uses a kind of inter-process communication methods of inserted audio-video monitoring system, packet
It includes:
The communication information in acquisition system between each process classifies to the communication information of acquisition, the classification results of the communication information
Including multi-medium data and signaling data；
When the interprocess communication information of acquisition is multimedia data type, according to the function of process each in system, to each process
Classify, which includes data source procedure, data central program and data consumption program；
It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent to number
According to central program, wherein multimedia data request instruction carries the audio, video data information of request；
Data center's program shares the corresponding audio, video data stored in shared drive to data consumption program.
Preferably, the multimedia data request outside being received described using data source program is instructed, and by multimedia number
It is sent to after data center's program according to request instruction, further includes:
Data center's program judges whether the audio, video data of the multimedia data request has the data consumption journey
Sequence application；
If so, directly the corresponding audio, video data stored in shared drive is shared to the data consumption program；
If it is not, then data center's program is initiated to apply for that instruction, this application instruction carry described more to the data source program
The audio, video data information of media data request；
The data source program is instructed according to the application received, by the audio-video number of the multimedia data request instruction request
According to distribution into shared drive；
Data center's program shares the corresponding audio, video data in shared drive to the data consumption program.
Preferably, the type of the interprocess communication information be signaling data when, using star structure carry out it is each into
Signaling data interaction between journey.
It is preferably, described that the interaction of signaling data between each process is carried out using star structure, comprising:
According to the function of process each in system, classify to each process, which includes signaling central program and function
Program；
External demand signalling is received using signaling central program, and the biography of the demand signalling is determined by inquiry signalling route table
Defeated path；
Demand signalling is transmitted to corresponding function program by determining transmission path；
After function program receives demand signalling, by the response backtracking of the demand signalling to signaling central program；
Signaling central program is accordingly sent to the promoter of external request for the demand signalling.
Preferably, two-way communication is carried out by TCP channel between the function program and signaling central program.
On the other hand, using a kind of interprocess communication system of inserted audio-video monitoring system, including the first classification mould
Block and the first communication interaction module, in which:
First categorization module classifies to the communication information of acquisition for the communication information between each process in acquisition system, leads to
The classification results of letter information include multi-medium data and signaling data；
First communication interaction module is used for the function according to process each in system, classifies to each process, the classification results packet
Include data source procedure, data central program and data consumption program；
It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent to number
According to central program so that data center's program shares the corresponding audio, video data stored in shared drive to data consumption program,
Wherein multimedia data request instruction carries the audio, video data information of request.
Preferably, further include the second communication interaction module, be signaling number for the type in the interprocess communication information
According to when, using star structure carry out the signaling data between each process interaction.
Compared with prior art, there are following technical effects by the present invention: the present invention passes through to each in audio/video monitor and control system
The communication information between process is divided into multi-medium data and signaling data.A data central program is used for multi-medium data
Concentration interactive maintenance is carried out, and completes the efficient distribution of multi-medium data using shared drive.For signaling data, using one
A signaling central program carries out concentration interactive maintenance, and the communication instruction data between each go down town are completed by signaling central program
Forwarding.To effectively raise the efficiency communicated between each process, while also solving the instant of each interprocess communication
The problem of property.
Detailed description of the invention
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail:
Fig. 1 is a kind of flow diagram of the inter-process communication methods of inserted audio-video monitoring system；
The function division schematic diagram of process when Fig. 2 is multi-medium data interaction；
Fig. 3 is the flow diagram of multi-medium data interaction；
The function division schematic diagram of process when Fig. 4 is signaling data interaction；
Fig. 5 is the flow diagram of signaling data interaction；
Fig. 6 is the structural schematic diagram of the interprocess communication system of inserted audio-video monitoring system.
Specific embodiment
In order to further explain feature of the invention, reference should be made to the following detailed description and accompanying drawings of the present invention.Institute
Attached drawing is only for reference and purposes of discussion, is not used to limit protection scope of the present invention.
As shown in Figure 1, present embodiment discloses a kind of inter-process communication methods of inserted audio-video monitoring system, including
Following steps S1 to S4:
The communication information in S1, acquisition system between each process, classifies to the communication information of acquisition, the classification knot of the communication information
Fruit includes multi-medium data and signaling data；
S2, when the interprocess communication information of acquisition is multimedia data type, according to the function of process each in system, to respectively into
Cheng Jinhang classification, which includes data source procedure, data central program and data consumption program；
S3, it is instructed using the multimedia data request outside the reception of data source program, and multimedia data request is instructed and is sent
To data center's program, wherein multimedia data request instruction carries the audio, video data information of request；
S4, data center's program share the corresponding audio, video data stored in shared drive to data consumption program.
It should be noted that the multi-medium data in the present embodiment is mainly audio, video data, signaling data is mainly each
The acquisition of kind configuration and the control command and some other interactive controlling orders of setting.Communication between obtaining each process
After information, classified according to the size of the characteristic of data such as data volume and frequency of communication etc..
In practical applications, it is contemplated that multi-medium data has the characteristics that data volume is big, interaction is frequent, and this programme is using such as
Structure shown in Fig. 2 completes the interaction of multi-medium data between each process, in the present embodiment right according to the function difference of process
Each process is classified, and data source procedure, data central program and data consumption program Three role, these three angles are divided into
Practical three links in above-mentioned media data process flow of color, and more matchmakers are realized by shared drive between each process
The high efficiency interactive of volume data.
Preferably, as shown in figure 3, being instructed in the multimedia data request using outside the reception of data source program, and
Further include following steps after multimedia data request instruction is sent to data center's program:
A) data center's program judges whether the audio, video data of the multimedia data request has the data consumption program
Applied, if so then execute step d), thened follow the steps if not b)；
B) data center's program initiates application instruction to data source program, and this application instruction carries the multimedia data request
Audio, video data information；
C) data source program is instructed according to the application received, and the audio, video data of multimedia data request instruction request is distributed
Into shared drive；
D) due to being that most efficient interactive mode, the present embodiment pass through data center between process in operating system by shared drive
Program shares the corresponding audio, video data in shared drive to data consumption program.
Preferably, after data consumption program reads multi-medium data, multi-medium data is spent according to the demand of user and is carried out
Processing, for example video data is sent to the user for applying for checking monitoring video.
Preferably.As shown in figure 4, being carried out when the type of interprocess communication information is signaling data using star structure
Signaling data interaction between each process.
As shown in figure 5, carrying out the interaction of the signaling data between each process using star structure, comprising:
According to the position of star mechanism, classify to each process, which includes signaling central program and function program,
Wherein, two-way communication is carried out by TCP channel between function program and signaling central program；
External demand signalling is received using command center program, and the biography of the demand signalling is determined by inquiry signalling route table
Defeated path；
By determining transmission path, demand signalling is transmitted to by corresponding function program by signaling central program；
After function program receives demand signalling, by the response backtracking of the demand signalling to command center program；
Signaling central program is accordingly sent to the promoter of external request for the demand signalling.
It should be noted that the effect of command center program is received and transmitted to the signaling in all external worlds, tool
The realization of body is related to the external communication protocol of video monitoring system, and an Onvif agreement, TCP/IP generally can be selected in communication protocol
Agreement etc..
As shown in fig. 6, present embodiment discloses a kind of interprocess communication systems of inserted audio-video monitoring system, including
First categorization module 10 and the first communication interaction module 20, in which:
First categorization module 10 classifies to the communication information of acquisition for the communication information between each process in acquisition system,
The classification results of the communication information include multi-medium data and signaling data；
First communication interaction module 20 is used for the function according to process each in system, classifies to each process, the classification results
Including data source procedure, data central program and data consumption program；
It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent to number
According to central program so that data center's program shares the corresponding audio, video data stored in shared drive to data consumption program,
Wherein multimedia data request instruction carries the audio, video data information of request.
Preferably, further include the second communication interaction module 30, be signaling for the type in the interprocess communication information
When data, the interaction of the signaling data between each process is carried out using star structure.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of inter-process communication methods of inserted audio-video monitoring system characterized by comprising
The communication information in acquisition system between each process classifies to the communication information of acquisition, the classification results of the communication information
Including multi-medium data and signaling data；
When the interprocess communication information of acquisition is multimedia data type, according to the function of process each in system, to each process
Classify, which includes data source procedure, data central program and data consumption program；
It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent to number
According to central program, wherein multimedia data request instruction carries the audio, video data information of request；
Data center's program shares the corresponding audio, video data stored in shared drive to data consumption program.
2. the inter-process communication methods of inserted audio-video monitoring system as described in claim 1, which is characterized in that described
It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent in data
After heart program, further includes:
Data center's program judges whether the audio, video data of the multimedia data request has the data consumption journey
Sequence application；
If so, directly the corresponding audio, video data stored in shared drive is shared to the data consumption program；
If it is not, then data center's program is initiated to apply for that instruction, this application instruction carry described more to the data source program
The audio, video data information of media data request；
The data source program is instructed according to the application received, by the audio-video number of the multimedia data request instruction request
According to distribution into shared drive；
Data center's program shares the corresponding audio, video data in shared drive to the data consumption program.
3. the inter-process communication methods of inserted audio-video monitoring system as described in claim 1, which is characterized in that described
When the type of interprocess communication information is signaling data, the interaction of the signaling data between each process is carried out using star structure.
4. the inter-process communication methods of inserted audio-video monitoring system as claimed in claim 3, which is characterized in that described to adopt
The interaction of the signaling data between each process is carried out with star structure, comprising:
According to the function of process each in system, classify to each process, which includes signaling central program and function
Program；
External demand signalling is received using command center, and the transmission road of the demand signalling is determined by inquiry signalling route table
Diameter；
Demand signalling is transmitted to by corresponding function program by signaling central program by determining transmission path；
After function program receives demand signalling, by the response backtracking of the demand signalling to command program；
Signaling central program is accordingly sent to the promoter of external request for the demand signalling.
5. the inter-process communication methods of inserted audio-video monitoring system as claimed in claim 4, which is characterized in that the function
Two-way communication can be carried out by TCP channel between program and signaling central program.
6. a kind of interprocess communication system of inserted audio-video monitoring system, which is characterized in that including the first categorization module and
First communication interaction module, in which:
First categorization module classifies to the communication information of acquisition for the communication information between each process in acquisition system, leads to
The classification results of letter information include multi-medium data and signaling data；
First communication interaction module is used for the function according to process each in system, classifies to each process, the classification results packet
Include data source procedure, data central program and data consumption program；
It is instructed using the multimedia data request outside the reception of data source program, and multimedia data request instruction is sent to number
According to central program so that data center's program shares the corresponding audio, video data stored in shared drive to data consumption program,
Wherein multimedia data request instruction carries the audio, video data information of request.
7. the interprocess communication system of inserted audio-video monitoring system as claimed in claim 6, which is characterized in that further include
Second communication interaction module, for the type in the interprocess communication information be signaling data when, carried out using star structure
Signaling data interaction between each process.
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Application publication date: 20190514 |