CN106713010B - A kind of communication means and system of avionics network system - Google Patents
A kind of communication means and system of avionics network system Download PDFInfo
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- CN106713010B CN106713010B CN201611042415.0A CN201611042415A CN106713010B CN 106713010 B CN106713010 B CN 106713010B CN 201611042415 A CN201611042415 A CN 201611042415A CN 106713010 B CN106713010 B CN 106713010B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0889—Techniques to speed-up the configuration process
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
Abstract
The invention discloses the communication means and system of a kind of avionics network system, in advance by the configuration information record of each node in avionics network system in blueprint allocation list, when avionics network system is communicated, present node is initialized based on DDS standard planning, when each node carries out information exchange by 1553 buses, data required when information exchange are obtained from blueprint allocation list.1553 agreements by being adapted to by the present invention with DDS specification, make to have carried out abstract and black box to network protocol when network design, on the one hand the nodal community configuration to each node is accelerated, reduce the workload of network planning business, another aspect user is not necessarily in face of 1553 complicated agreements, make user from needing before while nodes oriented and agreement, it is converted into only needing message-oriented, to keep entire communication process more humanized, and then shorten the design cycle of avionics network system, improve network communication debugging efficiency.
Description
Technical field
The present invention relates to data communication technology fields, more specifically, being related to a kind of communication means of avionics network system
And system.
Background technique
In military project aviation field, it is total as information transmission that the core network of avionics network system generallys use 1553 buses
Line.Avionics Design of Network System personnel need to complete two tasks when configuring avionics network system: first is network communication
Business, core business of the business as entire avionics network, belongs to Top-layer Design Method content, for realizing message attributes configuration；
Second is network planning business, which belongs to bottom-layer design content, for realizing node category of each node in 1553 networks
Property configuration.
In avionics network system, generally by manually carrying out nodal community configuration to each node of the whole network according to 1553 agreements
It is configured with corresponding message attributes, after the completion of the configuration of each node, it is also necessary to call 1553 complicated driving layer interfaces to each section
Point send message received, organize packet etc..When some nodal community or message attributes change, it is necessary to modify the network planning
Business.The modification process of network planning business includes: designer when carrying out communication configuration, is needed according to 1553 agreements to category
Property change node or message be adapted to, need to consider the uniqueness of the whole network node ID in adaptation procedure, similar node exists
The contents such as same RT (Remote Terminals, remote terminal) address.Simultaneously in the communication process of avionics network system, need
Node initializing, message are sent and resolving is modified, to be adapted to new allocation list.In usual avionics network system
Number of nodes it is up to up to a hundred, therefore any one node or the attribute of message change, and can all bring huge work
Amount.
To sum up, a kind of communication means of avionics network system how is provided to reduce the workload of network planning business, is made
User mentions when carrying out network communication without understanding 1553 complicated agreements so as to shorten the design cycle of avionics network system
The problem of high network communication debugging efficiency is those skilled in the art's urgent need to resolve.
Summary of the invention
In view of this, the present invention discloses the communication means and system of a kind of avionics network system, avionics is being carried out to realize
When network system configures, the workload of network planning business is reduced, the time needed for shortening nodal community configuration, so as to shorten boat
The design cycle of electric network system.
A kind of communication means of avionics network system, comprising:
Initialization resource needed for applying for present node initialization, the initialization resource include at least: 1553 equipment are hard
The occupied resource of data publisher and the data in the occupied resource of part and data distribution formula service DDS specification
The occupied resource of the corresponding data write unit of publisher, the occupied resource of data subscription person and with the data subscription person
The corresponding occupied resource of data-reading unit；
The configuration information that the present node is obtained from pre-stored blueprint allocation list, according to the initialization resource and
The configuration information initializes the present node, wherein the configuration information includes: message attributes configuration and node
Attribute configuration；
It is marked according to be sent message of the predefined service quality QOS strategy to the present node after initialization；
When the marker for determining the message to be sent is effective, then the message to be sent is exported to 1553 buses；
Other nodes are acquired from 1553 bus to export to the message in 1553 bus, and obtain the message
Identifier ID；
According to the corresponding relationship of the ID and subject information recorded in the ID and the blueprint allocation list, the message is judged
It whether is that the present node needs received message；
If the message is that the present node needs received message, according to the subject information of the message, call
Corresponding message groups packet task handles the message, obtains the corresponding message content of the message.
Preferably, the configuration information that the present node is obtained from pre-stored blueprint allocation list, according to described
Initialization resource and the configuration information carry out initialization to the present node and include:
The configuration information of the present node is obtained from pre-stored blueprint allocation list, the configuration information includes node
Attribute configuration and message attributes configuration；
Application board resource and configuration board nodal community are configured according to the nodal community；
It is configured according to the message attributes to configure board scheduling message table；
According to the corresponding data type of message each in message attributes configuration, all theme numbers and the QOS plan
Slightly, the data publisher, the data write unit, data subscription person and the data-reading unit are carried out initial
Change, realizes the initialization to the present node.
Preferably, if the message is that the present node needs received message, according to the master of the message
Information is inscribed, calls corresponding message groups packet task to handle the message, obtains the corresponding message content packet of the message
It includes:
If the message is that the present node needs received message, according to the subject information of the message, call
Corresponding message groups packet task, packages to the message；
Message after the completion of group packet is stored in corresponding theme caching, and according to the subject information, from the theme
The corresponding message content of the message is obtained in caching.
Preferably, further includes:
After the completion of each node communication in avionics network system, the initialization resource is discharged.
Preferably, message attributes configuration includes three attributes, be respectively as follows: message sending cycle, message content and
Message direction, the direction include: source direction and sending direction.
A kind of communication system of avionics network system, comprising:
Application unit, for initialization resource needed for applying for present node initialization, the initialization resource is at least wrapped
It includes: the occupied money of data publisher in the occupied resource of 1553 device hardwares and data distribution formula service DDS specification
Source, the occupied resource of data write unit corresponding with the data publisher, the occupied resource of data subscription person and with
The corresponding occupied resource of data-reading unit of the data subscription person；
Initialization unit, for obtaining the configuration information of the present node from pre-stored blueprint allocation list, according to
The initialization resource and the configuration information initialize the present node, wherein the configuration information includes: to disappear
Cease attribute configuration and nodal community configuration；
Marking unit, for according to predefined service quality QOS strategy to the to be sent of the present node after initialization
Message is marked；
Output unit, it is for when the marker for determining the message to be sent is effective, then the message to be sent is defeated
Out to 1553 buses；
Acquisition unit is exported for acquiring other nodes from 1553 bus to the message in 1553 bus, and
Obtain the identifier ID of the message；
Judging unit, for being closed according to the corresponding of the ID and subject information recorded in the ID and the blueprint allocation list
System judges whether the message is that the present node needs received message；
Processing unit, for according to the subject information of the message, adjusting in the case where the judging unit is judged as YES
The message is handled with corresponding message groups packet task, obtains the corresponding message content of the message.
Preferably, the initialization unit includes:
First obtains subelement, for obtaining the configuration information of the present node from pre-stored blueprint allocation list,
The configuration information includes nodal community configuration and message attributes configuration；
Apply for subelement, for configuring application board resource and configuration board nodal community according to the nodal community；
Subelement is configured, configures board scheduling message table for configuring according to the message attributes；
Subelement is initialized, for according to the corresponding data type of message each in message attributes configuration, all themes
Number and QOS strategy, to the data publisher, the data write unit, data subscription person and the data
Reading unit is initialized, and realizes the initialization to the present node.
Preferably, the processing unit includes:
Group steamed stuffed bun unit, if being that the present node needs received message for the message, according to the message
Subject information, call corresponding message groups packet task, package to the message；
Second obtains subelement, is stored in corresponding theme caching for that will organize the message after the completion of wrapping, and according to described
Subject information obtains the corresponding message content of the message from theme caching.
Preferably, further includes:
Releasing unit, for discharging the initialization resource after the completion of each node communication in avionics network system.
Preferably, message attributes configuration includes three attributes, be respectively as follows: message sending cycle, message content and
Message direction, the direction include: source direction and sending direction.
From above-mentioned technical solution it is found that the invention discloses the communication means and system of a kind of avionics network system, in advance
First by the configuration information record of each node in avionics network system in blueprint allocation list, when avionics network system is led to
When letter, present node is initialized based on DDS standard planning, when each node carries out information exchange by 1553 buses,
Data required when information exchange are obtained from blueprint allocation list.The present invention is adapted to by standardizing 1553 agreements with DDS,
Make to have carried out abstract and black box to network protocol when network design, on the one hand accelerates and the nodal community of each node is matched
It sets, reduces the workload of network planning business, another aspect user is not necessarily to make user from before in face of 1553 complicated agreements
It needs while nodes oriented and agreement, is converted into only needing message-oriented, to keep entire communication process more humanized, and then contract
The design cycle of short avionics network system, improve network communication debugging efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
Disclosed attached drawing obtains other attached drawings.
Fig. 1 is a kind of communication means flow chart of avionics network system disclosed by the embodiments of the present invention；
Fig. 2 is a kind of blueprint configuring frame composition disclosed by the embodiments of the present invention；
Fig. 3 is a kind of avionics network system architecture figure disclosed by the embodiments of the present invention；
Fig. 4 is a kind of structural schematic diagram of the communication system of avionics network system disclosed by the embodiments of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Inventor has found that in avionics network system Top-layer Design Method, often only consider information publisher and
Recipient, such as height sensor node can send elevation information into network, fly control calculate node and receive this information and carry out
A series of processing, but can't consider height sensor node be how with it is winged control calculate node physical connection and its total
Physical attribute on line.
The communication means and system of avionics network system disclosed by the embodiments of the present invention, by the way that network protocol is abstracted,
It realizes the abstract processing to each node configuration detail, and 1553 agreements is adapted to DDS specification, realize in avionics net
When network system bottom designs, simplifying for nodal community configuration process is handled, to subtract when carrying out the configuration of avionics network system
The workload for having lacked network planning business, the time needed for shortening nodal community configuration, and then shorten avionics network system
Design cycle.
DDS is the New-generation distributed reality that Object Management Organization (OMG) is formulated on the basis of the standards such as HLA and CORBA
When communication middleware technical specification, DDS uses publish/subscribe architectural framework, emphasizes data-centered, provides QOS abundant
Quality of service policy can ensure that data in real time, efficiently, neatly distribute, can meet various distributing real communication applications
Demand.The application provides a kind of new avionics network system by combining 1553 agreements and DDS specification.
The configuration process of avionics network system is specific as follows:
Referring to Fig. 1, a kind of communication means flow chart of avionics network system disclosed by the embodiments of the present invention, this method includes
Step:
Step S101, initialization resource needed for the initialization of application present node；
Wherein, the initialization resource includes at least: the occupied resource of 1553 device hardwares and DDS (Data
Distribution Service, the service of data distribution formula) specification in the occupied resource of data publisher, with the data
The occupied resource of the corresponding data write unit of publisher, the occupied resource of data subscription person and with the data subscription person
The corresponding occupied resource of data-reading unit.
Step S102, the configuration information that the present node is obtained from pre-stored blueprint allocation list, according to described first
Beginningization resource and the configuration information initialize the present node；
Wherein, the configuration information includes: message attributes configuration and nodal community configuration.
It should be noted that blueprint allocation list is obtained using blueprint configuration tool, the content in blueprint allocation list includes: net
The planning of network node and message attributes configuration, wherein for planning, each address of node belongs in avionics network for network node planning
Property, i.e., it include that nodal community configures in network node planning.
Message attributes configuration includes three attributes, is respectively as follows: message sending cycle, message content and message direction, institute
Stating direction includes: source direction and sending direction.
It is specifically described for three attributes that message attributes configure as follows:
(1) message sending cycle: since 1553 agreements have the characteristics that centralization, therefore the message that each node is sent is week
Phase message.Message can be divided into different grades according to the priority of each message, for example, A grades/B grades/C grades/D grades/E
Grade, the message sending cycle of each grade message can be respectively 1ms/10ms/50ms/100ms/1s, wherein A grades of expression message
Grade highest, sending cycle is most short, the meaning and so on of other grade message.Wherein, the divided rank number of message can root
It is extended according to message number and bandwidth.
(2) message content: including the explanation content of each byte in message content.Since certain message, such as alarm disappear
Breath does not need period transmission, therefore a storage unit (such as a bit) can be arranged in message content, should
Storage unit is for indicating whether current message is node actively updated message.
(3) message direction: in actual condition, normal reasonable message all has certain orientation, therefore, designer
Only need the source direction and sending direction of specified message.
It should be noted that unreasonable message direction configuration will increase network useless load.
Wherein, network node planning specifies node classification and main controlled node by designer.It illustrates, it is assumed that avionics net
Exist in network and fly control calculate node, position sensor node, velocity sensor node are wet in temperature sensor node and cabin in cabin
Spend sensor node.The specified control calculate node that flies is main controlled node, and position sensor node, velocity sensor node belong to one
Class, temperature sensor node in cabin, humidity sensor node belongs to one kind in cabin, then blueprint configuration tool can be according to preset configuration
It is required that generating satisfactory address configuration automatically for each node.
Referring specifically to blueprint configuring frame composition shown in Fig. 2, the velocity sensor node content that gives out information includes speed, together
When command speed be data type, in addition message priority be A, then blueprint configuration tool can generate the structural body number on the left of Fig. 2
According to (i.e. speed data type includes: 1. DDS identifier；2. speed；3. the effective identifier of data) and the corresponding period is (i.e.
1ms).Since each node has generated the address of corresponding 1553 networks, then the direction specified according to designer can give birth to
The corresponding routing iinformation of message is produced, as speed sensor node then disappears to winged control calculate node transmission speed message in the left side Fig. 2
The routing iinformation configured in breath is RT1.1- > BC, i.e. the node of 1 subaddressing 1 of the address RT sends message to BC.
Wherein, the full name in English of BC are as follows: Bus Controller, Chinese are as follows: bus control unit.
Equally, the position sensor node content that gives out information includes position, while designated position is data type, is in addition disappeared
Breath priority is A, then blueprint configuration tool can generate the structured data on the left of Fig. 2 (i.e. position data type includes: 1. DDS
Identifier；2. longitude；3. latitude；4. height；5. the effective identifier of data) and the corresponding period (i.e. 1ms).Due to each node
The address of corresponding 1553 networks is generated, then the direction specified according to designer can produce the corresponding routing letter of message
Breath, Position Sensor node sends location message, the then routing iinformation configured in message to winged control calculate node on the left of Fig. 2
For RT1.2- > BC, i.e. the node of 1 subaddressing 2 of the address RT sends message to BC.
The temperature sensor node content that gives out information includes temperature in cabin, while assigned temperature is data type, is in addition disappeared
Breath priority is B, then blueprint configuration tool can generate the structured data on the left of Fig. 2 (i.e. temperature data type includes: 1. DDS
Identifier；2. temperature；3. the effective identifier of data) and the corresponding period (i.e. 10ms).Since each node has generated pair
The address of 1553 networks is answered, then the direction specified according to designer can produce the corresponding routing iinformation of message, on the left of Fig. 2
Temperature sensor node sends temperature message to winged control calculate node in middle deck, then the routing iinformation configured in message is RT2.1-
> BC, the i.e. node of 2 subaddressing 1 of the address RT send message to BC.
The humidity sensor node content that gives out information includes humidity in cabin, while specified humidity is data type, is in addition disappeared
Breath priority is D, then blueprint configuration tool can generate the structured data on the left of Fig. 2 (i.e. humidity data type includes: 1. DDS
Identifier；2. humidity；3. the effective identifier of data) and the corresponding period (i.e. 100ms).Since each node has generated pair
The address of 1553 networks is answered, then the direction specified according to designer can produce the corresponding routing iinformation of message, on the left of Fig. 2
Humidity sensor node sends humidity message to winged control calculate node in middle deck, then the routing iinformation configured in message is RT2.2-
> BC, the i.e. node of 2 subaddressing 2 of the address RT send message to BC.
Step S103, it is marked according to be sent message of the predefined QOS strategy to the present node after initialization；
Wherein, QOS (Quality Of Service, service quality) refers to that a network can utilize various basic technologies,
Better service ability is provided for specified network communication, is a kind of security mechanism of network, for solving network delay and resistance
A kind of technology of the problems such as plug.
Step S104, judge whether the marker of the message to be sent is effective, if so, thening follow the steps S105；
Step S105, the message to be sent is exported to 1553 buses；
Step S106, other nodes are acquired from 1553 bus to export to the message in 1553 bus, and obtained
The identifier ID of the message；
Step S107, according to the corresponding relationship of the ID and subject information recorded in the ID and the blueprint allocation list, sentence
Whether the message of breaking is that the present node needs received message, if so, thening follow the steps S108；
Step S108, then according to the subject information of the message, call corresponding message groups packet task to the message into
Row processing, obtains the corresponding message content of the message.
Wherein, subject information can be speed, position, humidity, temperature etc..
It should be noted that when determining the message obtained is not that present node needs received message, then it is assumed that this disappears
Breath is invalid message for present node, in this case it is necessary to filter out the message.
In the present embodiment, step S101~step S105 is the process that present node sends message to 1553 buses, step
S106~step S108 is the process that the message that other nodes are sent is obtained from 1553 buses, and two processes may be performed simultaneously,
And it is independent of each other, naturally it is also possible to according to actual needs, first control present node and first send message to 1553 buses, then from 1553
Bus obtains the message that other nodes are sent, such as embodiment shown in fig. 1, first can also obtain other nodes from 1553 buses
The message of transmission, then message is sent to 1553 buses.
In summary, the present invention in advance configures the configuration information record of each node in avionics network system in blueprint
In table, when avionics network system is communicated, present node is initialized based on DDS standard planning, when each node is logical
When crossing 1553 buses progress information exchange, data required when information exchange are obtained from blueprint allocation list.The present invention pass through by
1553 agreements are adapted to DDS specification, are made to have carried out abstract and black box to network protocol when network design, on the one hand be added
It is fast that the nodal community of each node is configured, reduce the workload of network planning business, another aspect user is without facing
1553 complicated agreements make user be converted into only needing message-oriented, to make whole from needing before while nodes oriented and agreement
A communication process is more humanized, and then shortens the design cycle of avionics network system, improves network communication debugging efficiency.
In order to further optimize the above embodiments, communication means can with comprising steps of
After the completion of each node communication in avionics network system, release initialization resource.
It wherein, in practical applications, can be four functional layers, four functions by each node division in avionics network
Layer is respectively as follows: application layer, data distribution layer, 1553 adaptation layers and 1553 driving layers, and 1553 driving layers of each node pass through
The connection of 1553 buses, blueprint adaptive tool is connect with 1553 adaptation layers of each node, referring specifically to Fig. 3, the embodiment of the present invention
Disclosed a kind of avionics network system architecture figure, wherein 3 nodes, respectively node 1, node 2 and node 3,3 are shown in Fig. 3
A node is connected by 1553 buses.
In conjunction with Fig. 1 and Fig. 3, the communication means of avionics network system is illustrated, specific as follows:
Before avionics network system starts communication, designer carries out message arrangement and network node using blueprint configuration tool
Planning, and generate blueprint allocation list.
Avionics network system includes following content when starting to communicate:
Initialization interface is called by application layer first, by needed for initialization interface application present node initialization
Resource is initialized, and obtains the configuration information of the present node from pre-stored blueprint allocation list, according to the initialization
Resource and the configuration information initialize the present node；Secondly application layer is called to send message interface, by answering
Message interface is sent by the message to be sent of the present node after initialization via application layer, data distribution layer conduction 1553 with layer
Adaptation layer, 1553 adaptation layers are marked message to be sent according to predefined QOS strategy, when the mark for determining message to be sent
When knowledge position is effective, then message to be sent is exported through 1553 driving layers to 1553 buses；
Other nodes are acquired from 1553 buses by 1553 driving layers to export to the message in 1553 bus, and are submitted
To 1553 adaptation layers, the identifier ID of the message is obtained by 1553 adaptation layers, according in the ID and the blueprint allocation list
The ID of record and the corresponding relationship of subject information judge whether message is that the present node needs received message, if described
Message is that the present node needs received message, which is output to after data distribution layer handled, and output is to answering
With layer, application layer is obtained in the corresponding message of the message according to the subject information of the message from the blueprint allocation list
Hold.
After the completion of each node communication in avionics network system, application layer calls realizing interface, release initialization money
Source.
In order to further optimize the above embodiments, the step S102 in above-described embodiment is specifically included:
The configuration information of present node is obtained from pre-stored blueprint allocation list, wherein configuration information includes: node category
Property configuration and message attributes configuration；
Application board resource and configuration board nodal community are configured according to nodal community；
Board scheduling message table is configured according to message attributes configuration；
According to the corresponding data type of message each in message arrangement, all theme numbers and QOS strategy, to data publication
Person (Publisher), data write unit corresponding with data publisher (DataWritter), data subscription person
(Subscriber) and data-reading unit corresponding with data subscription person (DataReader) initializes, and realizes to working as
The initialization of front nodal point.
In practical applications, when each node in avionics network includes: application layer, data distribution layer, 1553 adaptation layers
When with 1553 driving four functional layer of layer, the process initialized to present node includes:
The initialization interface for calling application layer is obtained from pre-stored blueprint allocation list current by the initialization interface
The configuration information (configuration information includes: nodal community configuration and message attributes configuration) of node, configures according to nodal community and applies
Board resource and configuration board nodal community, board scheduling message table is configured according to message attributes configuration.Due to message category
Property configuration determine that therefore the corresponding data type of each message, all theme numbers also determine in message attributes configuration, according to respectively disappearing
Cease corresponding data type, all theme numbers and QOS strategy, in data distributing layer data publisher, with the data
The corresponding data write unit of publisher, data subscription person and data-reading unit corresponding with data subscription person carry out initial
Change, to realize the initialization to present node.
In order to further optimize the above embodiments, the step S108 in above-described embodiment is specifically included:
If the message is that the present node needs received message, according to the subject information of the message, call
Corresponding message groups packet task, packages to the message；
Message after the completion of group packet is stored in corresponding theme caching, and according to the subject information, from the theme
The corresponding message content of the message is obtained in caching.
In practical applications, when each node in avionics network includes: application layer, data distribution layer, 1553 adaptation layers
When with 1553 driving four functional layer of layer, present node carries out message transmission and the process of message sink is specific as follows:
Message transmitting process: the message transmission interface of routine call application layer carries out message transmission.Application layer is called first
Message transmission interface is by the data content delivery of the subject information of message and message to data distribution layer, then data distribution layer root
According to subject information, the data content of message is saved in the caching of data write unit, and according to QOS strategy, data are sent out
It is sent to 1553 adaptation layers.Two task modules can be run after the starting of 1553 adaptation layers, two task modules include: that data send mould
Block and data reception module, data transmission blocks are a series of set that messages send task and a monitoring task, data hair
It send module to monitor the signal from data distribution layer, when receiving the signal of message to be sent of data distribution layer transmission, connects
The message to be sent that data distribution layer issues is received, then judges whether the marker of the message to be sent is effective, it is pending when determining
When sending the marker of message effective, according to the subject information of the message to be sent and the corresponding informance in blueprint allocation list,
It calls corresponding task to handle message to be sent, obtains the communication message for meeting 1553 standard agreements, and by the communication
Message is sent to 1553 buses by 1553 driving layers.
Message sink process: the message sink interface of routine call application layer carries out message sink.First in present node
Other nodes are collected from 1553 buses by message sink interface to export to the message in 1553 buses, 1553 adaptation layers
Data reception module (data reception module is a series of set that message groups packet tasks and a message receive task) starts work
Make, data reception module receives the message in 1553 buses, and obtains the identifier ID of message, according in ID and blueprint allocation list
The ID of record and the corresponding relationship of subject information judge whether the message is the received message of present node needs, if it is,
It calls corresponding message groups packet task to carry out message groups packet, and gives the message transmission that group packet is completed to data distribution layer.Data point
The data-reading unit sent out in layer monitors the message in 1553 adaptation layers, fits when data-reading unit is received from 1553
After the message on layer, which is stored in the caching of corresponding main body, and according to QOS strategy, sends this message to application
Layer.The message that last application layer calls the message sink interface data distribution layer of block type to send, and according to the message
Subject information obtains the corresponding message content of message, from blueprint allocation list so that program does other purposes.
Corresponding with above method embodiment, the invention also discloses a kind of communication systems of avionics network system.
Referring to fig. 4, the structural solid of the communication system of a kind of avionics network system disclosed by the embodiments of the present invention, the communication
System includes:
Application unit 201, for initialization resource needed for applying for present node initialization, the initialization resource is at least
Include: the occupied resource of 1553 device hardwares and data distribution formula service DDS specification in data publisher it is occupied
Resource, the occupied resource of data write unit corresponding with the data publisher, the occupied resource of data subscription person and
The occupied resource of data-reading unit corresponding with the data subscription person；
Initialization unit 202, for obtaining the configuration information of the present node, root from pre-stored blueprint allocation list
The present node is initialized according to the initialization resource and the configuration information, wherein the configuration information includes:
Message attributes configuration and nodal community configuration；
It should be noted that blueprint allocation list is obtained using blueprint configuration tool, the content in blueprint allocation list includes: net
The planning of network node and message attributes configuration, wherein for planning, each address of node belongs in avionics network for network node planning
Property, i.e., it include that nodal community configures in network node planning.
Message attributes configuration includes three attributes, is respectively as follows: message sending cycle, message content and message direction, institute
Stating direction includes: source direction and sending direction.
Marking unit 203, for according to predefined QOS strategy to the message to be sent of the present node after initialization into
Line flag；
Output unit 204, for when the marker for determining the message to be sent is effective, then by the message to be sent
It exports to 1553 buses；
Acquisition unit 205 is exported for acquiring other nodes from 1553 bus to the message in 1553 bus,
And obtain the identifier ID of the message；
Judging unit 206, for the correspondence according to the ID and subject information recorded in the ID and the blueprint allocation list
Relationship judges whether the message is that the present node needs received message；
Processing unit 207, in the case where judging unit 206 is judged as YES, according to the subject information of the message,
It calls corresponding message groups packet task to handle the message, obtains the corresponding message content of the message.
It should be noted that application unit 201, initialization unit 202, marking unit 203 and output are single in the present embodiment
Member 204 sends message, acquisition unit 205, judging unit 206 and processing unit 207 to 1553 buses for realizing present node
Message is obtained from 1553 buses for realizing present node, the transmission process of message and the receive process of message can be two solely
Vertical process；Message transmitting process can also be first carried out, it is rear to execute message sink process；Or message sink process is first carried out,
After execute message transmitting process, the connection type of each component units includes but is not limited to Fig. 4 disclosed embodiment in setting system.
In summary, the present invention in advance configures the configuration information record of each node in avionics network system in blueprint
In table, when avionics network system is communicated, present node is initialized based on DDS standard planning, when each node is logical
When crossing 1553 buses progress information exchange, data required when information exchange are obtained from blueprint allocation list.The present invention pass through by
1553 agreements are adapted to DDS specification, are made to have carried out abstract and black box to network protocol when network design, on the one hand be added
It is fast that the nodal community of each node is configured, reduce the workload of network planning business, another aspect user is without facing
1553 complicated agreements make user be converted into only needing message-oriented, to make whole from needing before while nodes oriented and agreement
A communication process is more humanized, and then shortens the design cycle of avionics network system, improves network communication debugging efficiency.
In order to further optimize the above embodiments, communication system can also include:
Releasing unit, for discharging the initialization resource after the completion of each node communication in avionics network system.
In order to further optimize the above embodiments, the initialization unit 202 in above-described embodiment includes:
First obtains subelement, for obtaining the configuration information of the present node from pre-stored blueprint allocation list,
The configuration information includes nodal community configuration and message attributes configuration；
Apply for subelement, for configuring application board resource and configuration board nodal community according to the nodal community；
Subelement is configured, configures board scheduling message table for configuring according to the message attributes；
Subelement is initialized, for according to the corresponding data type of message each in message attributes configuration, all themes
Number and QOS strategy, to the data publisher, the data write unit, data subscription person and the data
Reading unit is initialized, and realizes the initialization to the present node.
In practical applications, when each node in avionics network includes: application layer, data distribution layer, 1553 adaptation layers
When with 1553 driving four functional layer of layer, the process initialized to present node includes:
The initialization interface for calling application layer is obtained from pre-stored blueprint allocation list current by the initialization interface
The configuration information (configuration information includes: nodal community configuration and message attributes configuration) of node, configures according to nodal community and applies
Board resource and configuration board nodal community, board scheduling message table is configured according to message attributes configuration.Due to message category
Property configuration determine that therefore the corresponding data type of each message, all theme numbers also determine in message attributes configuration, according to respectively disappearing
Cease corresponding data type, all theme numbers and QOS strategy, in data distributing layer data publisher, with the data
The corresponding data write unit of publisher, data subscription person and data-reading unit corresponding with data subscription person carry out initial
Change, to realize the initialization to present node.
In order to further optimize the above embodiments, the processing unit 207 in above-described embodiment may include:
Group steamed stuffed bun unit, if being that the present node needs received message for the message, according to the message
Subject information, call corresponding message groups packet task, package to the message；
Second obtains subelement, is stored in corresponding theme caching for that will organize the message after the completion of wrapping, and according to described
Subject information obtains the corresponding message content of the message from theme caching.
In practical applications, when each node in avionics network includes: application layer, data distribution layer, 1553 adaptation layers
When with 1553 driving four functional layer of layer, present node carries out message transmission and the process of message sink is specific as follows:
Message transmitting process: the message transmission interface of routine call application layer carries out message transmission.Application layer is called first
Message transmission interface is by the data content delivery of the subject information of message and message to data distribution layer, then data distribution layer root
According to subject information, the data content of message is saved in the caching of data write unit, and according to QOS strategy, data are sent out
It is sent to 1553 adaptation layers.Two task modules can be run after the starting of 1553 adaptation layers, two task modules include: that data send mould
Block and data reception module, data transmission blocks are a series of set that messages send task and a monitoring task, data hair
It send module to monitor the signal from data distribution layer, when receiving the signal of message to be sent of data distribution layer transmission, connects
The message to be sent that data distribution layer issues is received, then judges whether the marker of the message to be sent is effective, it is pending when determining
When sending the marker of message effective, according to the subject information of the message to be sent and the corresponding informance in blueprint allocation list,
It calls corresponding task to handle message to be sent, obtains the communication message for meeting 1553 standard agreements, and by the communication
Message is sent to 1553 buses by 1553 driving layers.
Message sink process: the message sink interface of routine call application layer carries out message sink.First in present node
Other nodes are collected from 1553 buses by message sink interface to export to the message in 1553 buses, 1553 adaptation layers
Data reception module (data reception module is a series of set that message groups packet tasks and a message receive task) starts work
Make, data reception module receives the message in 1553 buses, and obtains the identifier ID of message, according in ID and blueprint allocation list
The ID of record and the corresponding relationship of subject information judge whether the message is the received message of present node needs, if it is,
It calls corresponding message groups packet task to carry out message groups packet, and gives the message transmission that group packet is completed to data distribution layer.Data point
The data-reading unit sent out in layer monitors the message in 1553 adaptation layers, fits when data-reading unit is received from 1553
After the message on layer, which is stored in the caching of corresponding main body, and according to QOS strategy, sends this message to application
Layer.The message that last application layer calls the message sink interface data distribution layer of block type to send, and according to the message
Subject information obtains the corresponding message content of message, from blueprint allocation list so that program does other purposes.
It should be noted that in system embodiment each component part concrete operating principle, refer to embodiment of the method pair
Part is answered, this is repeated no more.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments can be realized those skilled in the art or using the present invention.To this
A variety of modifications of a little embodiments will be apparent to one skilled in the art, the general principles defined herein
It can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not be by
It is limited to the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article most wide
Range.
Claims (8)
1. a kind of communication means of avionics network system characterized by comprising
Initialization resource needed for applying for present node initialization, the initialization resource include at least: 1553 device hardware institutes
The occupied resource of data publisher and the data publication in resource and data distribution formula the service DDS specification of occupancy
The occupied resource of the corresponding data write unit of person, the occupied resource of data subscription person and corresponding with the data subscription person
The occupied resource of data-reading unit；
The configuration information that the present node is obtained from pre-stored blueprint allocation list, according to the initialization resource and described
Configuration information initializes the present node, wherein the configuration information includes: message attributes configuration and nodal community
Configuration, the message attributes configuration includes three attributes, is respectively as follows: message sending cycle, message content and message direction, institute
Stating direction includes: source direction and sending direction, and the nodal community configuration includes: each address of node category in avionics network
Property；
It is marked according to be sent message of the predefined service quality QOS strategy to the present node after initialization；
When the marker for determining the message to be sent is effective, then the message to be sent is exported to 1553 buses；
Other nodes are acquired from 1553 bus to export to the message in 1553 bus, and obtain the mark of the message
Accord with ID；
According to the corresponding relationship of the ID and subject information recorded in the ID and the blueprint allocation list, whether the message is judged
Received message is needed for the present node, the subject information includes: speed, position, humidity and temperature；
If the message is that the present node needs received message, according to the subject information of the message, calls and correspond to
Message groups packet task the message is handled, obtain the corresponding message content of the message.
2. communication means according to claim 1, which is characterized in that described to obtain institute from pre-stored blueprint allocation list
The configuration information for stating present node initializes the present node according to the initialization resource and the configuration information
Include:
The configuration information of the present node is obtained from pre-stored blueprint allocation list, the configuration information includes nodal community
Configuration and message attributes configuration；
Application board resource and configuration board nodal community are configured according to the nodal community；
It is configured according to the message attributes to configure board scheduling message table；
It is right according to the corresponding data type of message each in message attributes configuration, all theme numbers and QOS strategy
The data publisher, the data write unit, data subscription person and the data-reading unit initialize, and realize
Initialization to the present node.
3. communication means according to claim 1, which is characterized in that if the message is present node needs
Received message calls corresponding message groups packet task to handle the message then according to the subject information of the message,
Obtaining the corresponding message content of the message includes:
If the message is that the present node needs received message, according to the subject information of the message, calls and correspond to
Message groups packet task, package to the message；
Message after the completion of group packet is stored in corresponding theme caching, and according to the subject information, is cached from the theme
It is middle to obtain the corresponding message content of the message.
4. communication means according to claim 1, which is characterized in that further include:
After the completion of each node communication in avionics network system, the initialization resource is discharged.
5. a kind of communication system of avionics network system characterized by comprising
Application unit, for initialization resource needed for applying for present node initialization, the initialization resource is included at least:
The occupied resource of 1553 device hardwares and data distribution formula service DDS specification in the occupied resource of data publisher,
The occupied resource of corresponding with data publisher data write unit, the occupied resource of data subscription person and with it is described
The occupied resource of the corresponding data-reading unit of data subscription person；
Initialization unit, for obtaining the configuration information of the present node from pre-stored blueprint allocation list, according to described
Initialization resource and the configuration information initialize the present node, wherein the configuration information includes: message category
Property configuration and nodal community configuration, message attributes configuration include three attributes, be respectively as follows: message sending cycle, in message
Hold and message direction, the direction include: source direction and sending direction, the nodal community configuration includes: avionics network
In each address of node attribute；
Marking unit, for the message to be sent according to predefined service quality QOS strategy to the present node after initialization
It is marked；
Output unit, for when the marker for determining the message to be sent is effective, then by the message to be sent export to
1553 buses；
Acquisition unit is exported to the message in 1553 bus for acquiring other nodes from 1553 bus, and is obtained
The identifier ID of the message；
Judging unit is sentenced for the corresponding relationship according to the ID and subject information recorded in the ID and the blueprint allocation list
Whether the message of breaking is that the present node needs received message, the subject information include: speed, position, humidity and
Temperature；
Processing unit according to the subject information of the message, calls pair in the case where the judging unit is judged as YES
The message groups packet task answered handles the message, obtains the corresponding message content of the message.
6. communication system according to claim 5, which is characterized in that the initialization unit includes:
First obtains subelement, described for obtaining the configuration information of the present node from pre-stored blueprint allocation list
Configuration information includes nodal community configuration and message attributes configuration；
Apply for subelement, for configuring application board resource and configuration board nodal community according to the nodal community；
Subelement is configured, configures board scheduling message table for configuring according to the message attributes；
Subelement is initialized, for according to the corresponding data type of message each in message attributes configuration, all theme numbers
And the QOS strategy, to the data publisher, the data write unit, data subscription person and the reading data
Unit is initialized, and realizes the initialization to the present node.
7. communication system according to claim 5, which is characterized in that the processing unit includes:
Group steamed stuffed bun unit, if being that the present node needs received message for the message, according to the master of the message
Information is inscribed, corresponding message groups packet task is called, packages to the message；
Second obtains subelement, is stored in corresponding theme caching for that will organize the message after the completion of wrapping, and according to the theme
Information obtains the corresponding message content of the message from theme caching.
8. communication system according to claim 5, which is characterized in that further include:
Releasing unit, for discharging the initialization resource after the completion of each node communication in avionics network system.
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