CN106161117B - A kind of analogue system and emulation mode of AFDX network - Google Patents
A kind of analogue system and emulation mode of AFDX network Download PDFInfo
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- CN106161117B CN106161117B CN201610868473.2A CN201610868473A CN106161117B CN 106161117 B CN106161117 B CN 106161117B CN 201610868473 A CN201610868473 A CN 201610868473A CN 106161117 B CN106161117 B CN 106161117B
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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
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Abstract
This application provides the analogue systems and emulation mode of a kind of AFDX network, using discrete event mechanism, by in AFDX network end system and interchanger be abstracted into discrete events simulation node, AFDX message is abstracted into the discrete event for discrete events simulation node, utilize the transmission and forwarding behavior of discrete event, AFDX message is emulated in the transport behavior of end system, and forwarding behavior of the AFDX message transmitted from end system between interchanger different port, it can get the performance parameter of AFDX network based on above-mentioned emulation.The application utilizes the operating mechanism of the true AFDX internet message of discrete event simulation, the performance parameter of AFDX network after counting each discrete event can be facilitated, and then optimize AFDX Design of Network System, this iteration cycle that system is designed shortens, simultaneously, end system emulation module in analogue system is automatically imported based on Interface Control File, reduces the system verification time.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of analogue systems and emulation mode of AFDX network.
Background technique
The exchange of avionic full-duplex communication Ethernet (Avionics Full Duplex Switched Ethernet,
It AFDX) is the electronics and protocol specification (IEEE802.3 and ARINC 664Part7) defined based on standard, for realizing
Data exchange between aviation subsystem.
AFDX network topology is complicated, when carrying out system design, need to consider each end system, interchanger, virtual link
The configuration of (Virtual link, VL), to guarantee the real-time and reliability of AFDX network.It is needed to wait for after the completion of system design hard
Part is verified after completing, and then design is iterated according to verification result, to guarantee that AFDX network is in optimal design.
In order to reduce system iteration cycle, system emulation mainly is carried out to AFDX network by way of network deduction at present,
The system delay and loading condition of AFDX network are obtained by emulation, and then AFDX net is optimized based on system delay and loading condition
Network design.However, existing network deduces mode, really airborne configuration variance is larger with AFDX network, also, is being iterated
When design, need to be manually entered every time, emulation mode is complicated.
Summary of the invention
In view of this, the present invention provides the analogue system and emulation mode of a kind of AFDX network, it is existing to solve
Emulation mode and true airborne configuration variance are larger, and when being iterated design, need to be manually entered every time, emulation mode is multiple
Miscellaneous problem, its technical solution is as follows:
A kind of analogue system of AFDX network, comprising: file import modul, end system emulation module, interchanger emulate mould
Block and simulation result output module；
The file import modul, for obtaining the Interface Control File of the configuration information including the AFDX network, base
The end system emulation module is imported in the Interface Control File, using the end system emulation module of importing as the first kind
Discrete events simulation node, and discrete thing is configured in the first kind discrete events simulation node based on the Interface Control File
Part, and, it is imitative as the second class discrete event that the network topology based on the AFDX network creates the interchanger emulation module
True node, wherein the discrete event includes that the first kind that is emulated in the first kind discrete events simulation node is discrete
Event and it is transmitted to the second class discrete event that the second class discrete events simulation node is emulated；
The end system emulation module, for utilizing the first kind discrete event successively from application layer, transport layer, network
Layer, link layer transmission process, emulate the AFDX network middle-end internal system AFDX message successively from application layer, transport layer,
Network layer, the transmission process of link layer obtain the first performance parameter of the AFDX network；
The interchanger emulation module, for utilizing the discrete thing of the second class transmitted from the end system emulation module
Part configures the process being forwarded based on the routing forwarding rule and virtual link of interchanger, emulates from the AFDX network middle-end
The AFDX message that system is transmitted across obtains institute in the process being forwarded between the different port of interchanger in the AFDX network
State the second performance parameter of AFDX network；
The simulation result output module, the first performance for exporting the AFDX network by the preset way of output are joined
Several and the AFDX network the second performance parameter.
Wherein, the file import modul, specifically for being led by the device configuration information in the Interface Control File
Enter the end system emulation module, using the end system emulation module of importing as first kind discrete events simulation node, with
And by the chain circuit message configuration information in the Interface Control File the first kind discrete events simulation node configure from
The event of dissipating.
Wherein, the end system emulation module includes: total monitoring module, application layer module, transport layer module, network layer mould
Block and link layer module；The application layer module includes application level function module and application layer monitoring module, the transport layer mould
Block includes transport layer function and transport layer monitoring module, and the network layer module includes network layer function and network layer
Monitoring module, the link layer module include link layer functionality module and link layer monitoring module；
The end system emulation module is specifically used for using the first kind discrete event successively from the application layer module
Application level function module, the transport layer function of the transport layer module, the network layer module Network layer function mould
Block, the link layer module link layer functionality module transfer process, emulate inside the end system AFDX message successively from
Application layer, transport layer, network layer, the process of link layer transfer, and, it is monitored respectively by the application layer of the application layer module
Module, the transport layer monitoring module of the transport layer module, the network layer monitoring module of the network layer module, the link layer
The link layer monitoring module of module collects the simulation result that the discrete event is transmitted at each layer, and, pass through the chief inspector
Control first performance parameter of the simulation result of the transmission at each layer of discrete event described in module collection as the AFDX network.
Wherein, the AFDX message in the AFDX network includes: periodic messages and aperiodic message；
Correspondingly, the discrete event includes: the discrete event generated based on discrete clock and predetermined period circulation, with
And the discrete event generated based on normal distyribution function.
Wherein, the simulation result output module, specifically for exporting the AFDX in the form of histogram and/or table
Second performance parameter of the first performance parameter of network and the AFDX network.
A kind of emulation mode of AFDX network, which comprises
The Interface Control File for obtaining the configuration information including the AFDX network is generated based on the Interface Control File
End system simulation node as first kind discrete events simulation node, and based on the Interface Control File the first kind from
It dissipates event simulation node and configures discrete event, the network topology creation interchanger simulation node based on the AFDX network is as the
Two class discrete events simulation nodes, wherein the discrete event, which is included in the first kind discrete events simulation node, to be imitated
Genuine first kind discrete event and it is transmitted to the second class discrete event that the second class discrete events simulation node is emulated；
By the first kind discrete events simulation node using the first kind discrete event successively from application layer, transmission
Layer, network layer, the process of link layer transfer, emulate the AFDX network middle-end internal system AFDX message successively from application layer,
Transport layer, network layer, the process of link layer transfer obtain the first performance parameter of the AFDX network；
It is utilized by the second class discrete events simulation node from the first kind discrete events simulation node-node transmission mistake
The the second class discrete event come configures the process being forwarded based on the routing forwarding rule and virtual link of interchanger, imitates
Very from the different port of the AFDX message that end system transmits in AFDX network interchanger in the AFDX network it
Between the process that is forwarded, obtain the second performance parameter of the AFDX network；
By the preset way of output export the AFDX network first performance parameter and the AFDX network it is secondary
It can parameter.
Wherein, described that end system simulation node is generated as first kind discrete events simulation based on the Interface Control File
Node, and discrete event is configured in the first kind discrete events simulation node based on the Interface Control File, comprising:
It is discrete as the first kind that end system simulation node is generated by the device configuration information in the Interface Control File
Event simulation node, by the chain circuit message configuration information in the Interface Control File in the first kind discrete events simulation
Node configures discrete event.
Wherein, it is described by the first kind discrete events simulation node using the first kind discrete event successively from answering
With layer, transport layer, network layer, the process of link layer transfer, the AFDX network middle-end internal system AFDX message is emulated successively
From application layer, transport layer, network layer, the process of link layer transfer, the first performance parameter of the AFDX network is obtained, comprising:
By the first kind discrete events simulation node using the first kind discrete event from the application layer to institute
The process for stating transport layer transmission emulates the mistake that AFDX message is transmitted from the application layer to the transport layer inside the end system
Journey, and collect the simulation result that the first kind discrete event is transmitted from the application layer to the transport layer；
By the first kind discrete events simulation node using the first kind discrete event from the transport layer to institute
The process for stating network layer transport emulates end system inside AFDX message from the transport layer to the mistake of the network layer transport
Journey, and the first kind discrete event is collected from the transport layer to the simulation result of the network layer transport；
By the first kind discrete events simulation node using the first kind discrete event from the network layer to institute
The process for stating link layer transfer emulates end system inside AFDX message from the network layer to the mistake of the link layer transfer
Journey, and the first kind discrete event is collected from the network layer to the simulation result of the link layer transfer；
Collect the simulation result, described first that the first kind discrete event transmits from the application layer to the transport layer
Class discrete event is from the transport layer to the simulation result of the network layer transport and the first kind discrete event from described
Simulation result first performance parameter as the AFDX network of the network layer to the link layer transfer.
Wherein, the AFDX message in the AFDX network includes: periodic messages and aperiodic message；
Correspondingly, the discrete event includes: the discrete event generated based on discrete clock and predetermined period circulation, with
And the discrete event generated based on normal distyribution function.
Wherein, it is described by the preset way of output export the AFDX network first performance parameter and the AFDX network
The second performance parameter, comprising:
Exported in the form of histogram and/or table the AFDX network first performance parameter and the AFDX network
Second performance parameter.
Above-mentioned technical proposal has the following beneficial effects:
The analogue system and emulation mode of AFDX network provided by the invention, using discrete event mechanism, by AFDX network
In end system be abstracted into discrete events simulation node, likewise, the interchanger in AFDX network is also abstracted into discrete event
AFDX message is abstracted into the discrete event for discrete events simulation node by simulation node, the transmission based on discrete event and
Forwarding behavior emulates AFDX message and is exchanging in the transport behavior of end system, and the AFDX message transmitted from end system
Forwarding behavior between machine different port can get the performance parameter of AFDX network based on above-mentioned emulation.It can be seen that of the invention
The analogue system and emulation mode of the AFDX network of offer simulate the operation of true AFDX internet message using discrete events simulation
Mechanism, it may be convenient to the performance parameter for counting AFDX network after each discrete event, thus the property based on AFDX network
Energy parameter optimization AFDX Design of Network System, this iteration cycle that system is designed are reduced, meanwhile, the end system in analogue system
System emulation module (i.e. discrete events simulation node) is automatically imported based on Interface Control File, when further reducing system verifying
Between.
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
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the analogue system of AFDX network provided in an embodiment of the present invention；
Fig. 2 is the network topological diagram of AFDX network；
Fig. 3 is the structural representation of the analogue system middle-end system simulation module of AFDX network provided in an embodiment of the present invention
Figure；
Fig. 4 is the flow diagram of the emulation mode of AFDX network provided in an embodiment 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.
It is discrete that discrete event, which refers to that the state of event changes in event, and thinks that the generation of event is complete in moment
At, there is no other events between two events of generation adjacent in Discrete Event Simulation System, and AFDX network can be considered as
Therefore one discrete event system can use discrete event mechanism and emulate to AFDX network.Based on this, the present invention is real
It applies example and provides a kind of analogue system of AFDX network, it, can be with referring to Fig. 1, show the structural schematic diagram of the analogue system
It include: file import modul 101, end system emulation module 102, interchanger emulation module 103 and simulation result output module
104。
File import modul 101 is based on interface for obtaining the Interface Control File of the configuration information including AFDX network
File inlet system simulation module 102 is controlled, regard the end system emulation module 102 of importing as first kind discrete events simulation
Node, and discrete event is configured in first kind discrete events simulation node based on Interface Control File, and, it is based on AFDX network
Network topology creation interchanger emulation module 103 be used as the second class discrete events simulation node, the network based on AFDX network
All discrete events simulation nodes of Topology connection.
Referring to Fig. 2, showing the network topological diagram of AFDX network, AFDX network includes multiple end systems and multiple exchanges
Machine.Each end system in figure is abstracted into an end system emulation module, and an as discrete events simulation node, interchanger is same
Sample is such.
Wherein, discrete event includes the first kind discrete event emulated in first kind discrete events simulation node and biography
Transport to the second class discrete event that the second class discrete events simulation node is emulated.
End system emulation module 102, for utilizing first kind discrete event successively from application layer, transport layer, network layer, chain
The transmission process of road floor emulates AFDX network middle-end internal system AFDX message successively from application layer, transport layer, network layer, chain
The transmission process of road floor obtains the first performance parameter of AFDX network.
Wherein, the first performance parameter of AFDX network includes: the message delay of end system in AFDX network, end system bandwidth
Etc. parameters.
Interchanger emulation module 103, for utilizing the second class discrete event transmitted from end system emulation module 102
Routing forwarding rule and virtual link based on interchanger configure the process being forwarded, and emulation end system from AFDX network passes
The AFDX message of defeated mistake obtains the of AFDX network in the process being forwarded between the different port of interchanger in AFDX network
Two performance parameters.
Wherein, draw when the second performance parameter of AFDX network includes: interchanger forwarding of the AFDX message in AFDX network
Loading condition etc. of the forward delay, AFDX message entered on switch port, these parameters can assist designer's optimal change
The port assignment of machine.
Simulation result output module 104, for by the preset way of output output AFDX network first performance parameter and
Second performance parameter of AFDX network.
The analogue system of AFDX network provided in an embodiment of the present invention will be in AFDX network using discrete event mechanism
End system is abstracted into end system emulation module as discrete events simulation node, likewise, the interchanger in AFDX network is taken out
As at interchanger emulation module, as discrete events simulation node, the discrete event that is transmitted through by AFDX message in end system exists
The Propagation Simulation of end system emulation module carries out the AFDX message transmitted from end system between interchanger different port
The process of forwarding passes through routing forwarding rule and void of the discrete event based on interchanger transmitted from end system emulation module
The process that quasi- link configuration is forwarded is emulated, and can get the performance parameter of AFDX network based on above-mentioned simulation process.By
This as it can be seen that AFDX network provided in an embodiment of the present invention analogue system, utilize discrete events simulation to simulate true AFDX network
The operating mechanism of message, it may be convenient to the performance parameter for counting AFDX network after each discrete event, to be based on
The optimizing performance parameters AFDX Design of Network System of AFDX network, this iteration cycle that system is designed are reduced, meanwhile, end system
System emulation module is automatically imported based on Interface Control File, further reduces the verification time.
In the analogue system of AFDX network provided by the above embodiment, the Interface Controller of the acquisition of file import modul 101
It include the device configuration information and chain circuit message configuration information of AFDX network in file.File import modul, passes through Interface Controller
Device configuration information inlet system simulation module in file, using the end system emulation module of importing as the discrete thing of the first kind
Part simulation node, by the chain circuit message configuration information in Interface Control File first kind discrete events simulation node configure from
The event of dissipating.
Referring to Fig. 3, show in the analogue system of AFDX network provided by the above embodiment, end system emulation module
Structural schematic diagram, end system emulation module may include: total monitoring module 300, application layer module 301, transport layer module 302,
Network layer module 303 and link layer module 304.
Further, application layer module 301 includes application level function module 3011 and application layer monitoring module 3012, transmission
Layer module 302 includes transport layer function 3021 and transport layer monitoring module 3022, and network layer module 303 includes network layer function
Energy module 3031 and network layer monitoring module 3032, link layer module 304 include that link layer functionality module 3041 and link layer are supervised
Control module 3042.
Specifically, end system emulation module, using discrete event successively from the application level function module of application layer module 301
3011, the transport layer function 3021 of transport layer module 302, the network layer function 3031 of network layer module 303, link
The process that the link layer functionality module 3041 of layer module 304 is transmitted, emulation end system inside AFDX message is successively from application layer, biography
Defeated layer, network layer, the process of link layer transfer, and, respectively by the application layer monitoring module 3012 of application layer module 301,
The transport layer monitoring module 3022 of transport layer module 302, the network layer monitoring module 3032 of network layer module 303, link layer mould
The link layer monitoring module 3042 of block 304 collects the simulation result that discrete event is transmitted at each layer, and, by always monitoring mould
Block 300 collects first performance parameter of the simulation result of discrete event transmission at each layer as AFDX network.
Specifically, discrete event is in application level function module 3011, transport layer function 3021, network layer function
3031, during link layer functionality module 3041 is transmitted, the function of each functional module is as shown in the table:
By above-mentioned simulation process it is found that by AFDX network, AFDX message is in application layer-transport layer-network layer-link layer
Transmitting, be converted to discrete event application level function module, transport layer function, network layer function, link layer functionality
The transmission of module.Utilize the principle of discrete events simulation are as follows: in discrete events simulation, the operation of system is by chronological order
One group of sequence of events of arrangement indicates that each event occurs at a time to indicate that the state of system changes.It is every by simulating
The change event of a message status and the event transmitted on each link, obtain the load feelings of all message of single end system
The forward delay parameter of condition, all message.If load postpones excessively high, need to redesign message in Interface Control File
The period assignment of quantity and each message.
AFDX message in AFDX network includes: periodic messages and aperiodic message, the embodiment of the present invention utilize based on from
The periodic messages in clock and the discrete event simulation AFDX network of predetermined period circulation generation are dissipated, using based on normal distribution letter
The aperiodic message in normal distyribution function discrete event simulation AFDX network that number generates, that is, by the non-week in AFDX network
Phase Message Simulation is arranged the normal distyribution function parameter of each aperiodic event and generates probability at aperiodic event.Week
Phase event and aperiodic event carry out discretization emulation according to clock progress.
In simulation process, aperiodic event occurs according to its normal distribution and the setting of generation probability, simulates true
The scene of AFDX message collision in airborne system, i.e., available by the emulation to aperiodic message, the generation of aperiodic message
On influence caused by original periodic messages, and, whether the generation of aperiodic message will cause the conflict of AFDX network, thus
Obtain load and delay situation that current network designs all message.By the emulation of aperiodic message, obtain with it is true airborne
The consistent network behavior of network can more really assess airborne AFDX network design.
The embodiment of the present invention deduces the generation of each discrete event with clock, obtains the performance parameter of each discrete event,
The characteristics of in conjunction with AFDX network, obtains the critical performance parameters of AFDX network by emulation.
For the performance parameter for the AFDX network that more intuitive, vivider displaying emulation obtains, to keep designer logical
Cross the direction for emulating clear system design optimization, in the analogue system of AFDX network provided by the above embodiment, simulation result is defeated
Module out exports the performance parameter of AFDX network in the form of histogram and/or table.
The embodiment of the invention also provides a kind of emulation modes of AFDX network, referring to Fig. 4, showing the emulation mode
Flow diagram, may include:
Step S401: the Interface Control File of the configuration information including AFDX network is obtained.
Step S402: end system simulation node is generated as first kind discrete events simulation section based on Interface Control File
Point, and discrete event is configured in first kind discrete events simulation node based on Interface Control File.
Step S403: the network topology creation interchanger simulation node based on AFDX network is imitative as the second class discrete event
True node.
Wherein, discrete event includes the first kind discrete event emulated in first kind discrete events simulation node and biography
Transport to the second class discrete event that the second class discrete events simulation node is emulated.
Step S404: by first kind discrete events simulation node using first kind discrete event successively from application layer, biography
Defeated layer, network layer, the process of link layer transfer, emulation AFDX network middle-end internal system AFDX message is successively from application layer, biography
Defeated layer, network layer, the process of link layer transfer obtain the first performance parameter of AFDX network.
Wherein, the first performance parameter of AFDX network includes: the message delay of end system in AFDX network, end system bandwidth
Etc. parameters.
Step S405: it is utilized by the second class discrete events simulation node from first kind discrete events simulation node-node transmission mistake
The the second class discrete event come configures the process that is forwarded based on the routing forwarding rule and virtual link of interchanger, emulation from
End system transmits in AFDX network AFDX message is being forwarded between the different port of interchanger in AFDX network
Process obtains the second performance parameter of AFDX network.
Wherein, draw when the second performance parameter of AFDX network includes: interchanger forwarding of the AFDX message in AFDX network
Loading condition etc. of the forward delay, AFDX message entered on switch port, these parameters can assist designer's optimal change
The port assignment of machine.
Step S406: by the preset way of output output AFDX network first performance parameter and AFDX network it is secondary
It can parameter.
It should be noted that step S402 and step S403 can be executed by said sequence, can also be performed simultaneously, likewise,
Step S404 and step S405 can be executed by said sequence, can also be performed simultaneously, and the present embodiment is not to step S402 and step
The execution sequence of S403 is defined, and is not also defined to the execution sequence of step S404 and step S405, as long as including upper
State the range that step belongs to protection of the embodiment of the present invention.
The emulation mode of AFDX network provided in an embodiment of the present invention will be in AFDX network using discrete event mechanism
End system is abstracted into discrete events simulation node, likewise, the interchanger in AFDX network is also abstracted into discrete events simulation
Node, is abstracted into the discrete event for discrete events simulation node for AFDX message, transmission and forwarding based on discrete event
Behavior, emulation AFDX message end system transport behavior, and the AFDX message that is transmitted from end system interchanger not
With the forwarding behavior between port, the performance parameter of AFDX network can get based on above-mentioned emulation.It can be seen that the present invention is implemented
The emulation mode for the AFDX network that example provides, the operating mechanism of true AFDX internet message is simulated using discrete events simulation, can
The performance parameter of AFDX network after easily to count each discrete event, so that the performance parameter based on AFDX network is excellent
Change AFDX Design of Network System, this iteration cycle that system is designed is reduced, meanwhile, end system simulation node is based on interface control
File processed automatically generates, and further reduces the system verification time.
In the emulation mode of AFDX network provided by the above embodiment, the configuration information in Interface Control File includes
The device configuration information and chain circuit message configuration information of AFDX network.End system simulation node is then generated based on Interface Control File
As first kind discrete events simulation node, and it is discrete in the configuration of first kind discrete events simulation node based on Interface Control File
Event, comprising: end system simulation node is generated as the discrete thing of the first kind by the device configuration information in Interface Control File
Part simulation node, by the chain circuit message configuration information in Interface Control File first kind discrete events simulation node configure from
The event of dissipating.
In the emulation mode of AFDX network provided by the above embodiment, utilized by first kind discrete events simulation node
First kind discrete event successively from application layer, transport layer, network layer, link layer transfer process simulation AFDX network in end system
Internal AFDX message successively from application layer, transport layer, network layer, the process of link layer transfer, obtains the primary of AFDX network
Energy parameter, comprising:
The mistake for utilizing first kind discrete event to transmit from application layer to transport layer by first kind discrete events simulation node
Journey, process from application layer to transport layer that transmitted from of AFDX message inside emulation end system, and first kind discrete event is collected from answering
The simulation result transmitted with layer to transport layer；
Mistake of the first kind discrete event from transport layer to network layer transport is utilized by first kind discrete events simulation node
Journey, process of the emulation end system inside AFDX message from transport layer to network layer transport, and first kind discrete event is collected from biography
Simulation result of the defeated layer to network layer transport；
Mistake of the first kind discrete event from network layer to link layer transfer is utilized by first kind discrete events simulation node
Journey, process of the emulation end system inside AFDX message from network layer to link layer transfer, and first kind discrete event is collected from net
Simulation result of the network layers to link layer transfer；
Simulation result that first kind discrete event is transmitted from from application layer to transport layer, first kind discrete event are from transport layer
Simulation result conduct from from network layer to link layer transfer of simulation result and first kind discrete event to network layer transport
The first performance parameter of AFDX network.
In the emulation mode of AFDX network provided by the above embodiment, the AFDX message in AFDX network includes disappearing in the period
Breath and aperiodic message.Correspondingly, discrete event includes: the discrete event generated based on discrete clock and predetermined period circulation,
And the discrete event generated based on normal distyribution function.
For the performance parameter for the AFDX network that more intuitive, vivider displaying emulation obtains, to keep designer logical
The direction for emulating clear system design optimization is crossed, in the emulation mode of AFDX network provided by the above embodiment, by preset defeated
Mode exports the first performance parameter of AFDX network and the second performance parameter of AFDX network out, comprising: with histogram and/or table
The first performance parameter of the form output AFDX network of lattice and the second performance parameter of AFDX network.
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.
In several embodiments provided herein, it should be understood that disclosed method, apparatus and equipment, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be by some communication interfaces, between device or unit
Coupling or communication connection are connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.In addition, the functional units in various embodiments of the present invention may be integrated into one processing unit, it is also possible to each
Unit physically exists alone, and can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of analogue system of AFDX network characterized by comprising file import modul, end system emulation module, exchange
Machine emulation module and simulation result output module；
The file import modul is based on institute for obtaining the Interface Control File of the configuration information including the AFDX network
It states Interface Control File and imports the end system emulation module, the end system emulation module of importing is discrete as the first kind
Event simulation node, and discrete event is configured in the first kind discrete events simulation node based on the Interface Control File,
And the network topology based on the AFDX network creates the interchanger emulation module as the second class discrete events simulation section
Point, wherein the discrete event includes the first kind discrete event emulated in the first kind discrete events simulation node
With the second class discrete event for being transmitted to the second class discrete events simulation node and being emulated；
The end system emulation module, for using the first kind discrete event successively from application layer, transport layer, network layer,
The transmission process of link layer emulates the AFDX network middle-end internal system AFDX message successively from application layer, transport layer, network
The transmission process of layer, link layer, obtains the first performance parameter of the AFDX network；
The interchanger emulation module, for utilizing the second class discrete event base transmitted from the end system emulation module
The process being forwarded, emulation end system from the AFDX network are configured in the routing forwarding rule and virtual link of interchanger
The AFDX message transmitted is in the process being forwarded between the different port of interchanger in the AFDX network, described in acquisition
Second performance parameter of AFDX network；
The simulation result output module, for exported by the preset way of output AFDX network first performance parameter and
Second performance parameter of the AFDX network.
2. the analogue system of AFDX network according to claim 1, which is characterized in that the file import modul, specifically
For importing the end system emulation module by the device configuration information in the Interface Control File, by the end of importing
System simulation module as first kind discrete events simulation node, and, pass through the chain circuit message in the Interface Control File
Configuration information configures discrete event in the first kind discrete events simulation node.
3. the analogue system of AFDX network according to claim 1, which is characterized in that the end system emulation module packet
It includes: total monitoring module, application layer module, transport layer module, network layer module and link layer module；The application layer module includes
Application level function module and application layer monitoring module, the transport layer module include transport layer function and transport layer monitoring mould
Block, the network layer module include network layer function and network layer monitoring module, and the link layer module includes link layer
Functional module and link layer monitoring module；
The end system emulation module, specifically for utilizing the first kind discrete event successively answering from the application layer module
With layer function module, the transport layer function of the transport layer module, the network layer function of the network layer module, institute
The process for stating the link layer functionality module transfer of link layer module emulates end system inside AFDX message successively from application
Layer, transport layer, network layer, the process of link layer transfer, and, mould is monitored by the application layer of the application layer module respectively
Block, the transport layer monitoring module of the transport layer module, the network layer monitoring module of the network layer module, the link layer mould
The link layer monitoring module of block collects the simulation result that the discrete event is transmitted at each layer, and, pass through total monitoring
First performance parameter of the simulation result that discrete event described in module collection is transmitted at each layer as the AFDX network.
4. the analogue system of AFDX network according to claim 1, which is characterized in that the AFDX in the AFDX network disappears
Breath includes: periodic messages and aperiodic message；
Correspondingly, the discrete event includes: discrete event for simulating the periodic messages and for simulating the non-week
The discrete event of phase message, the discrete event for simulating the periodic messages are to be followed based on discrete clock and predetermined period
The discrete event that ring generates, it is described for simulate the discrete event of the aperiodic message to be to be generated based on normal distyribution function
Normal distyribution function discrete event.
5. the analogue system of AFDX network described in any one of -4 according to claim 1, which is characterized in that the emulation knot
Fruit output module, specifically for exporting first performance parameter and the institute of the AFDX network in the form of histogram and/or table
State the second performance parameter of AFDX network.
6. a kind of emulation mode of AFDX network, which is characterized in that the described method includes:
The Interface Control File for obtaining the configuration information including the AFDX network generates end system based on the Interface Control File
Simulation node unite as first kind discrete events simulation node, and based on the Interface Control File in the discrete thing of the first kind
Part simulation node configures discrete event, and the network topology creation interchanger simulation node based on the AFDX network is as the second class
Discrete events simulation node, wherein the discrete event includes being emulated in the first kind discrete events simulation node
First kind discrete event, and, it is transmitted to the second class discrete event that the second class discrete events simulation node is emulated；
By the first kind discrete events simulation node using the first kind discrete event successively from application layer, transport layer,
Network layer, the process of link layer transfer emulate the AFDX network middle-end internal system AFDX message successively from application layer, transmission
Layer, network layer, the process of link layer transfer obtain the first performance parameter of the AFDX network；
By the second class discrete events simulation node, utilize what is come from the first kind discrete events simulation node-node transmission
The second class discrete event configures the process that is forwarded based on the routing forwarding rule and virtual link of interchanger, emulation from
The AFDX message that end system transmits in the AFDX network in the AFDX network between the different port of interchanger into
The process of row forwarding, obtains the second performance parameter of the AFDX network；
The first performance parameter of the AFDX network and the second performance ginseng of the AFDX network are exported by the preset way of output
Number.
7. the emulation mode of AFDX network according to claim 6, which is characterized in that described based on the Interface Controller text
Part generates end system simulation node as first kind discrete events simulation node, and is based on the Interface Control File described the
A kind of discrete events simulation node configures discrete event, comprising:
End system simulation node is generated as first kind discrete event by the device configuration information in the Interface Control File
Simulation node, by the chain circuit message configuration information in the Interface Control File in the first kind discrete events simulation node
Configure discrete event.
8. the emulation mode of AFDX network according to claim 6, which is characterized in that described discrete by the first kind
Event simulation node is using the first kind discrete event successively from application layer, transport layer, network layer, the mistake of link layer transfer
Journey emulates the AFDX network middle-end internal system AFDX message successively from application layer, transport layer, network layer, link layer transfer
Process, obtain the first performance parameter of the AFDX network, comprising:
By the first kind discrete events simulation node using the first kind discrete event from the application layer to the biography
The process of defeated layer transmission, emulates the process that AFDX message is transmitted from the application layer to the transport layer inside the end system,
And collect the simulation result that the first kind discrete event is transmitted from the application layer to the transport layer；
By the first kind discrete events simulation node using the first kind discrete event from the transport layer to the net
The process of network layers transmission, emulates inside the end system AFDX message from the transport layer to the process of the network layer transport,
And the first kind discrete event is collected from the transport layer to the simulation result of the network layer transport；
By the first kind discrete events simulation node using the first kind discrete event from the network layer to the chain
The process of road floor transmission, emulates inside the end system AFDX message from the network layer to the process of the link layer transfer,
And the first kind discrete event is collected from the network layer to the simulation result of the link layer transfer；
Collect simulation result from the application layer to the transport layer, the first kind that the first kind discrete event transmits from from
The event of dissipating is from the transport layer to the simulation result of the network layer transport and the first kind discrete event from the network
Simulation result first performance parameter as the AFDX network of the layer to the link layer transfer.
9. the emulation mode of AFDX network according to claim 6, which is characterized in that the AFDX in the AFDX network disappears
Breath includes: periodic messages and aperiodic message；
Correspondingly, the discrete event includes: discrete event for simulating the periodic messages and for simulating the non-week
The discrete event of phase message, the discrete event for simulating the periodic messages are to be followed based on discrete clock and predetermined period
The discrete event that ring generates, it is described for simulate the discrete event of the aperiodic message to be to be generated based on normal distyribution function
Normal distyribution function discrete event.
10. the emulation mode of the AFDX network according to any one of claim 6-9, which is characterized in that described by pre-
If the way of output export the first performance parameter of the AFDX network and the second performance parameter of the AFDX network, comprising:
Exported in the form of histogram and/or table the AFDX network first performance parameter and the AFDX network second
Performance parameter.
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| CN107390548B (en) * | 2017-08-31 | 2018-06-19 | 中国民航大学 | A kind of avionics HWIL simulation data path control system |
| CN108616387B (en) * | 2018-03-30 | 2021-02-02 | 北京润科通用技术有限公司 | Configuration method and device of virtual terminal based on AFDX (avionics full Duplex switched Ethernet) bus |
| CN110233824A (en) * | 2019-05-09 | 2019-09-13 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of system simulation method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894192A (en) * | 2010-07-19 | 2010-11-24 | 北京航空航天大学 | Simulation and demonstration system for design and validation of AFDX (Avionics Full Duplex Switched Ethernet) network and simulation and demonstration method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894192A (en) * | 2010-07-19 | 2010-11-24 | 北京航空航天大学 | Simulation and demonstration system for design and validation of AFDX (Avionics Full Duplex Switched Ethernet) network and simulation and demonstration method thereof |
| CN102325057A (en) * | 2011-06-27 | 2012-01-18 | 中国商用飞机有限责任公司 | Network testing device |
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