CN106411652A - Aerospace communication oriented gateway protocol conversion testing system and method - Google Patents
Aerospace communication oriented gateway protocol conversion testing system and method Download PDFInfo
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- CN106411652A CN106411652A CN201610946196.2A CN201610946196A CN106411652A CN 106411652 A CN106411652 A CN 106411652A CN 201610946196 A CN201610946196 A CN 201610946196A CN 106411652 A CN106411652 A CN 106411652A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/18—Protocol analysers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
Abstract
The invention relates to the technical field of aerospace communication, in particular to an aerospace communication oriented gateway protocol conversion testing system and an aerospace communication oriented gateway protocol conversion testing method. The aerospace communication oriented gateway protocol conversion testing system comprises a server, and a first computer, a second computer and a third computer which are connected with the server, wherein the first computer is provided with an AOS protocol simulation member, the second computer is provided with a Link protocol simulation member, and the third computer is provided with a gateway protocol conversion simulation member. Through establishing the aerospace communication oriented gateway protocol conversion testing method, the correctness and effectiveness of AOS protocol and Link protocol conversion in aerospace communication are verified; and through establishing the reliable, stable and extendable aerospace communication oriented gateway protocol conversion testing system, the conversion test of protocols among different communication systems is realized.
Description
Technical field
The present invention relates to empty sky communication technical field, more particularly, to a kind of gateway protocol conversion testing towards the communication of empty sky
System and method.
Background technology
By the support of the empty sky communication technology, intelligent weapon system can effectively be realized precision strike, efficiently be injured, certainly
Lead collaborative, Situation Awareness and injure the functions such as assessment, constitute collection scouting, strike, communication, decision-making, the integration such as injure, assess
Cooperation system, establish material base for obtaining battlefield power of getting the upper hand of.Follow corresponding agreement due in empty sky communication system
Specification and standard, gateway provides efficient service as tie for empty sky communication system.But the design of hardware gateway and checking week
Phase is long, and by existing test system, in checking empty sky communication, correctness during gateway protocol conversion and validity are relatively low.
Content of the invention
(1) technical problem to be solved
It is an object of the invention to provide a kind of gateway protocol conversion testing system and method towards the communication of empty sky, solve existing
There are correctness in the communication of checking empty sky during gateway protocol conversion for the test system and the relatively low problem of validity.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of gateway protocol conversion testing system towards the communication of empty sky
System, the first computer, second computer and the 3rd computer being connected respectively including server and with described server, wherein
Described first computer is provided with AOS protocol emulation member, and described second computer is provided with Link protocol emulation member, and the described 3rd
Computer is provided with gateway protocol conversion simulated members；
Described AOS protocol emulation member is used for receiving the data that described gateway protocol conversion simulated members send, by number
Parsed according to according to AOS agreement, and be packaged according to AOS agreement, the AOS protocol data after encapsulation is distributed to outside and enters
Row reads；
Described Link protocol emulation member is used for receiving the charge type that described gateway protocol conversion simulated members send
Data, will accuse that categorical data is parsed according to class Link agreement, and is packaged according to class Link agreement, after encapsulation
Link protocol data is distributed to outside and is read out；
Described gateway protocol conversion simulated members are used for completing described AOS protocol emulation member and institute according to protocol interaction side
State effective protocol interaction between Link protocol emulation member, carry out effective data processing and Issuing Office according to address information
Reason.
Further, described AOS protocol emulation member includes AOS agreement receiver module, AOS protocol resolution module, AOS association
View processing module, AOS protocol generation module and AOS agreement sending module；
Wherein said AOS agreement receiver module is used for receiving the data that described gateway protocol conversion simulated members send,
The data that described AOS protocol resolution module is used for described AOS agreement receiver module is received parses, at described AOS agreement
Reason module is used for carrying out data processing to the data after the parsing of described AOS protocol resolution module, and described AOS protocol generation module is used
Data after described AOS protocol process module is processed is packaged, and described AOS agreement sending module is used for described AOS
AOS protocol data after the encapsulation of protocol generation module according to image, data and accuses that the form of categorical data segment information is carried out point
Send out.
Further, described Link protocol emulation member include Link agreement receiver module, Link protocol resolution module,
Link protocol process module, Link protocol generation module and Link agreement sending module；
Wherein said Link agreement receiver module is used for receiving the data that described gateway protocol conversion simulated members send,
The data that described Link protocol resolution module is used for described Link agreement receiver module is received parses, described Link agreement
Processing module is used for carrying out data processing, described Link protocol generation mould to the data after the parsing of described Link protocol resolution module
Data after block is used for described Link protocol process module is processed is packaged, and described Link agreement sending module is used for institute
State the Link protocol data after the encapsulation of Link protocol generation module according to image, data and the form accusing categorical data segment information
It is distributed.
Further, described gateway protocol conversion simulated members include the first gateway protocol interactive module and the second gateway association
View interactive module, wherein said first gateway protocol interactive module is used for for AOS protocol data being converted to Link protocol data, institute
State the second gateway protocol interactive module for Link protocol data is converted to AOS protocol data.
Specifically, described gateway protocol conversion simulated members also include starting Simulation Control module, suspend Simulation Control mould
Block, continuation Simulation Control module and end Simulation Control module.
Present invention also offers a kind of gateway protocol conversion testing method towards the communication of empty sky, specifically include following step
Suddenly：
By the AOS protocol emulation member in the gateway protocol conversion testing system communicating towards empty sky, Link protocol emulation
Member and gateway protocol conversion simulated members control initialization；
Start the conversion thread that gateway protocol changes simulated members, add AOS protocol emulation member and Link protocol emulation
Member carries out emulation testing；
Generate emulation data, emulation data is changed simulated members by gateway protocol and interacts conversion；
When emulating data for Link protocol data, Link protocol data is sent to enter to gateway protocol conversion simulated members
Row conversion, and by the data is activation after conversion to AOS protocol emulation member；Described AOS protocol emulation member receives described net
Close the data that protocol conversion simulated members send, data is parsed according to AOS agreement, and is packaged according to AOS agreement
Generate AOS protocol data；The processing procedure that Link protocol data is switched to AOS protocol data carries out simulation analysis；By emulation point
AOS protocol data after analysis is distributed to outside and is read out；
When emulating data for AOS protocol data, AOS protocol data is sent and carries out to gateway protocol conversion simulated members
Conversion, and by the data is activation after conversion to Link protocol emulation member；Described Link protocol emulation member receives described net
Close the data that protocol conversion simulated members send, data is parsed according to Link agreement, and is sealed according to Link agreement
Dress generates Link protocol data；The processing procedure that AOS protocol data is switched to Link protocol data carries out simulation analysis；To emulate
Link protocol data after analysis is distributed to outside and is read out.
Further, described gateway protocol conversion simulated members realize AOS transmission frame by data link layer and Link passes
Mutual conversion between defeated frame；
During the mutual conversion of AOS transmission frame and Link transmission frame, from one of which data form, parse valid data,
It is encapsulated in the valid data domain of another kind of data form again；Or all data in one of which form are potted directly into separately
In a kind of valid data domain of data form.
Further, when Link transmission frame being converted to AOS transmission frame,
If the valid data length of field of Link transmission frame is more than the valid data length of field of AOS transmission frame, Link is passed
Defeated frame carries out segmentation, and the wherein part of curtailment is filled with using filling field；
If the valid data length of field of Link transmission frame is equal with the valid data length of field of AOS transmission frame, directly enter
Row filling；
If the valid data length of field of Link transmission frame is less than the valid data length of field of AOS transmission frame, directly carry out
Filling, the wherein part of curtailment are filled with using filling field.
Further, AOS transmission frame is converted to comprising the following steps that of Link transmission frame：
Parsing AOS transmission frame；
Detection BPDU frame head checks whether comprise in the valid data domain of AOS transmission frame to fill data, if no filling data,
Then it is reduced directly valid data；If there being filling data, after abandoning padding data, reduce valid data；
According to the segment encode of Link transmission frame, the valid data of the AOS restoring transmission frame are assembled into a Link transmission
Frame.
(3) beneficial effect
The technique scheme of the present invention has the advantage that：
The gateway protocol conversion testing system and method towards the communication of empty sky that the present invention provides, can be in a LAN
Gateway protocol conversion testing process towards the communication of empty sky is realized on network, the present invention includes AOS protocol emulation member, Link agreement
Simulated members and gateway protocol conversion simulated members, changing simulated members by gateway protocol can be effectively by the communication of empty sky
AOS agreement and Link agreement are mutually changed, using the Socket technology based on Visual C++ in emulation testing checking
Realize the synchronous communication of each member and interact, so ensure system components coordinate, orderly function, for the agreement in the communication of empty sky
Conversion provides test.
The correctness of AOS agreement and Link protocol conversion and validity in the communication of empty sky are able to verify that by the present invention, its
In towards empty sky communication gateway protocol conversion testing system there is authentic testing ability, be a kind of reliability, stable and
Extendible gateway protocol conversion testing system it is achieved that between different communication systems agreement conversion testing.
Brief description
Fig. 1 is the structural representation of the gateway protocol conversion testing system that the embodiment of the present invention communicates towards empty sky；
Fig. 2 is the AOS protocol frame format structure of the gateway protocol conversion testing system that the embodiment of the present invention communicates to empty sky
Figure；
Fig. 3 is the Link protocol frame format structure of the gateway protocol conversion testing system that the embodiment of the present invention communicates to empty sky
Figure；
Fig. 4 is the flow chart of the gateway protocol conversion testing method that the embodiment of the present invention communicates towards empty sky；
Fig. 5 be in the gateway protocol conversion testing method that the embodiment of the present invention communicates towards empty sky Link transmission frame to AOS
Transmission frame transition diagram；
Fig. 6 be in the gateway protocol conversion testing method that the embodiment of the present invention communicates towards empty sky AOS transmission frame to Link
Transmission frame transition diagram；
Fig. 7 is that embodiment of the present invention AOS agreement produces emulation testing figure；
Fig. 8 is embodiment of the present invention link one gateway protocol conversion emulation testing figure；
Fig. 9 is that embodiment of the present invention Link agreement receives emulation testing figure；
Figure 10 is that embodiment of the present invention Link agreement produces emulation testing figure；
Figure 11 is embodiment of the present invention link two gateway protocol conversion emulation testing figure；
Figure 12 is that embodiment of the present invention AOS agreement receives emulation testing figure.
In figure：1：Server；2：First computer；3：Second computer；4：3rd computer.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As shown in figure 1, the embodiment of the present invention provides a kind of gateway protocol conversion testing system towards the communication of empty sky, by hard
Part, software two parts composition, wherein hardware components include server 1 and the first calculating being connected respectively with described server 1
Machine 2, second computer 3 and the 3rd computer 4, provide hardware running environment for software function member.Described software section includes
It is arranged on the AOS protocol emulation member in described first computer 2, the Link agreement being arranged in described second computer 3 is imitated
True member, is arranged on the gateway protocol conversion simulated members in described 3rd computer 3.
Described AOS protocol emulation member is used for receiving the data that described gateway protocol conversion simulated members send, by number
Parsed according to according to AOS agreement, and be packaged according to AOS agreement, the AOS protocol data after encapsulation is distributed to outside and enters
Row reads.
Described Link protocol emulation member is used for receiving the charge type that described gateway protocol conversion simulated members send
Data, will accuse that categorical data is parsed according to class Link agreement, and is packaged according to class Link agreement, after encapsulation
Link protocol data is distributed to outside and is read out.
Described gateway protocol conversion simulated members are used for completing described AOS protocol emulation member and institute according to protocol interaction side
State effective protocol interaction between Link protocol emulation member, carry out effective data processing and Issuing Office according to address information
Reason.
Wherein, described AOS protocol emulation member include AOS agreement receiver module, AOS protocol resolution module, at AOS agreement
Reason module, AOS protocol generation module and AOS agreement sending module.Wherein said AOS agreement receiver module is used for receiving described
Gateway protocol changes the data that simulated members send, and described AOS protocol resolution module is used for described AOS agreement receiver module
The data receiving is parsed, and described AOS protocol process module is used for the data after the parsing of described AOS protocol resolution module is entered
Row data processing, the data after described AOS protocol generation module is used for described AOS protocol process module is processed is packaged,
Described AOS agreement sending module is used for the AOS protocol data after the encapsulation of described AOS protocol generation module according to image, data
And the form of charge categorical data segment information is distributed.
Wherein, described Link protocol emulation member includes Link agreement receiver module, Link protocol resolution module, Link association
View processing module, Link protocol generation module and Link agreement sending module.Wherein said Link agreement receiver module is used for
Receive described gateway protocol and change the data that simulated members send, described Link protocol resolution module is used for described Link is assisted
The data that view receiver module receives is parsed, and described Link protocol process module is used for described Link protocol resolution module solution
Data after analysis carries out data processing, after described Link protocol generation module is used for described Link protocol process module is processed
Data is packaged, and described Link agreement sending module is used for the Link agreement number after the encapsulation of described Link protocol generation module
It is distributed according to according to the form of image, data and charge categorical data segment information.
Wherein, described gateway protocol conversion simulated members include the first gateway protocol interactive module and the second gateway protocol is handed over
Mutually module, wherein said first gateway protocol interactive module is used for for AOS protocol data being converted to Link protocol data, and described the
Two gateway protocol interactive module are used for for Link protocol data being converted to AOS protocol data.
Additionally, described gateway protocol conversion simulated members also include starting Simulation Control module, suspend Simulation Control module,
Continue Simulation Control module and terminate Simulation Control module.Described gateway protocol conversion simulated members are responsible for entirely testing system
System operation, control test system in other two simulated members and complete gateway protocol interaction it is ensured that test system just
Really run, be the core member of whole test system.
Two kinds of agreements of main inclusion in the communication towards empty sky of the present invention, i.e. AOS agreement and Link agreement, below
Both agreements are described in detail.
1st, AOS agreement
As shown in Fig. 2 in the communication of empty sky, information, when space link transmits, mainly follows the AOS association based on CCSDS
View.
In order to build the network system of Incorporate, realize space-based and dock with the seamless data of ground, space link is
Wireless satellite link, link layer adopts the AOS space link layer protocol that the CCSDS committee formulates, due to ground and space bottom
The difference of link, thus satellite link layer we cannot use and ground identical agreement, but Internet can shield this difference.
Domain：It is made up of two parts, reset mark and clear area, when space link does not connect, need to store
Transmission frame, if link re-establishes, needs to resend these data.Playback mark domain informs that these data of receiving terminal are real
When data " 0 " or replay data " 1 ".Its main purposes exactly when exist in a pseudo channel simultaneously data and weight
Put data separation they, now custom is set to complete " 00 " for clear area.
Frame header Error Control：This domain is optional, if employing this domain, based on head 48-63 position.This domain uses
Possess RS (10, the 6) code of error correcting capability to protect key message MCID, VCID and the signaling domain in head.The presence in this domain
Whether once it is determined that, then must be consistent in each transmission frame of Same Physical channel.
Insertion domain：If used, after this domain should be inserted in main head, if physical channel enables in cycle data transfer
This business, then in each frame of this physical channel transmission, even the transmission frame of sky, also comprise this region.Insert district
The length in domain and the NI_SDU equal length of physical channel, insert region comprises an IN_SDU in units of byte.
Data cell domain：Data field unit domain follows main head or insert region closely, comprises a M_PDU, a B_
PDU, a VCA_SDU or empty data.M_PDU, B_PDU, VCA_SDU and empty data will not be multiplexed into a pseudo channel,
For example：If a pseudo channel transmits M_PDU.So comprise a M_PDU in each transmission frame of this pseudo channel, this
Regulation is because not having the type that a domain to identify institute's transmission data, if mixed transport, recipient in transmission frame
The type of None- identified data, if do not have user data to need to send, then one comprises spy when sending transmission frame
The transmission frame of the empty data of the formula that fixes is sent, and so one transmission frame is referred to as null frame.The VCID of null frame is set as " 1 " number entirely
Length according to region is in units of byte, and is variable, but is equal to both differences following：
1) length of the transmission frame of particular physical channel.
2) length of main head adds the length of insert region and/or the length of afterbody.
Tail：Comprise operational control domain OCF and frame error control domain, be all Optional Field.The use of OCF is more special
Very, different according to different pseudo channels, once using, then within fixing task time, each pseudo channel every
This domain is all comprised in individual frame.First bit of OCF is type code position, for representing the Report Type of wherein loading, " 0 "
Representative is the report of Class1, and what " 1 " represented is that type 2 is reported.Frame error control domain provides discovery transmission data and processed
The ability of transmission frame (in addition to head) mistake is led to, its ability providing according to lower floor's coding layer using whether is not in journey
Different together.
With the increase of new applications various in space-based asset, application type is more and more abundanter.More tired more ground should
With being implemented in space-based asset, to provide abundant Air Service.In the communication of empty sky the effect of gateway just show particularly important.
2nd, Link agreement
As shown in figure 3, in the communication of empty sky, Link class agreement has stronger anti-interference and anti-intercepting and capturing ability, wherein
Link-16 is most widely used by high-speed frequency-hopping.
The message numbering of Link-16 data catenary system is Jn.m, the n in message numbering is by the tag field of banner word
Corresponding to 5bit 25(0-31) mark value represents；M is the 3bit corresponding 2 being accorded with field by the sub-mark of banner word3(0-7) son
Mark value represents.32 × 8=256 kind message format thus can be obtained, and the message of each numbering uniquely determines a kind of report
The type of literary composition.
Header sends at first in each time slot, and after the message of Link-16 data catenary system is connected on header
Face sends.Header is not the message of Link class data catenary system, and its information content is mainly assists platform device to process Link
The message of class data catenary system.Header word has 416 altogether, is made up of 16 dipulses.Header word by 35bit information structure, by it
Be divided into 7 groups of 5bit, and the coding of RS (16,7) is carried out to it.
The header word of Link-16 agreement is divided into four parts, is Slot Type field, RI/TM field, flight path number mark respectively
Character learning section, secure data unary system row field.The Slot Type field of 3bit, its effect is primarily used to identify the envelope of message
Error correcting code etc. whether is comprised in dress type, type of message (formatted message or variable format message) and free text；
(RI/TM) character field of 1bit, when being transferred from by text, mark uses pulse or double arteries and veins to the character of this 1bit
Rush character, and when transmitting set form message or variable formatting message, judge that relaying of transmission is also non-relaying
Message；The numbering of the main emission source storing current time slots of flight path number mark of 15bit；The secure data cell-in-series of 16bit
The encryption method of the message of number this time slot of primary identity, to receive the deciphering of terminal completion message.
As shown in figure 4, the embodiment of the present invention additionally provides a kind of gateway protocol conversion testing method towards the communication of empty sky,
Emulation testing is carried out using above-mentioned gateway protocol conversion testing system.
The method specifically includes following steps：
Control towards the gateway protocol conversion simulated members initialization in the gateway protocol conversion testing system of empty sky communication.
Start the conversion thread that gateway protocol changes simulated members, add AOS protocol emulation member and Link protocol emulation
Member carries out emulation testing.
Generate emulation data, emulation data is changed simulated members by gateway protocol and interacts conversion.
When emulating data for Link protocol data, Link protocol data is sent to enter to gateway protocol conversion simulated members
Row conversion, and by the data is activation after conversion to AOS protocol emulation member；Described AOS protocol emulation member receives described net
Close the data that protocol conversion simulated members send, data is parsed according to AOS agreement, and is packaged according to AOS agreement
Generate AOS protocol data；The processing procedure that Link protocol data is switched to AOS protocol data carries out simulation analysis；By emulation point
AOS protocol data after analysis is distributed to outside and is read out.
When emulating data for AOS protocol data, AOS protocol data is sent and carries out to gateway protocol conversion simulated members
Conversion, and by the data is activation after conversion to Link protocol emulation member；Described Link protocol emulation member receives described net
Close the data that protocol conversion simulated members send, data is parsed according to Link agreement, and is sealed according to Link agreement
Dress generates Link protocol data；The processing procedure that AOS protocol data is switched to Link protocol data carries out simulation analysis；To emulate
Link protocol data after analysis is distributed to outside and is read out.
Wherein, described gateway protocol conversion simulated members realize AOS transmission frame and Link transmission frame by data link layer
Between mutual conversion, specifically can adopt following two modes：
One when being the mutual conversion of AOS transmission frame and Link transmission frame, parses effectively from one of which data form
Data, then be encapsulated in the valid data domain of another kind of data form.Two is will be direct for all data in one of which form
It is encapsulated in the valid data domain of another kind of data form.
As shown in figure 5, in the whole task segment of the transfer process of Link transmission frame to AOS transmission frame, if Link transmission
The valid data length of field of frame is more than the valid data length of field of AOS transmission frame, then Link transmission frame is carried out segmentation, wherein long
The not enough part of degree is filled with using filling field.If the valid data length of field of Link transmission frame and having of AOS transmission frame
Effect data field length is equal, then be directly filled with.If the valid data length of field of Link transmission frame is less than having of AOS transmission frame
Effect data field length, then be directly filled with, and wherein the part of curtailment is filled with using filling field.
As shown in fig. 6, during AOS transmission frame is converted to Link transmission frame, being divided into AOS transmission frame no to fill data
There are filling two kinds of situations of data with AOS transmission frame.Concrete transfer process is as follows：
1st, parse AOS transmission frame；
2nd, detection BPDU frame head checks whether comprise in the valid data domain of AOS transmission frame to fill data, if no filler
According to then direct-reduction valid data；If there being filling data, after abandoning padding data, reduce valid data；
3rd, the segment encode according to Link transmission frame, the valid data of the AOS restoring transmission frame is assembled into a Link and passes
Defeated frame.
Sky sky of the present invention communication gate protocol conversion test system, dividing according to information system information interactive process
Analysis, the input and output difference of exchange agreement, intend the Simulation Strategy using segmented.With the propulsion of emulation, respectively emulate into
Member carries out the interaction of interoperability of interconnecting, and can be shown by the simulation status that interface adjusts corresponding simulated members.
Due to the operation that simulated members manage whole analogue system is changed using gateway protocol, send control instruction and complete
State interacts, thus in the building of typical information system gateway exchange agreement analogue system, and intends using being produced based on information, place
The gateway exchange agreement controlling mechanism managed and distribute.
Sky sky of the present invention communication gate protocol conversion test system, is one by multiple functional simulation member compositions
Analogue system.In simulation process, the necessary co-ordination of each simulated members, jointly complete the communication gate protocol conversion of empty sky and survey
The test checking of test system.
Because each object member is distributed on each physical node, for guarantee the validity of each node work, uniformity and
Ageing, control realization by the way of based on Socket.
Under set simulating scenes, build corresponding test system by the hardware topology of simulating scheme, complete each
The actual functional capability of individual simulation unit, the protocol conversion to AOS agreement and Link agreement is realized, the test link of setting
For：AOS agreement-》Gateway-》Link agreement-》Gateway-》AOS agreement, data frame length is 50.
The data that in empty sky communication gate protocol conversion test system, sublink one (forward link) produces includes satellite class
Data, detection target class data, frame format follows AOS agreement.In link one AOS protocol data test result as shown in fig. 7,
Wherein send the frame data after the data in data text frame is AOS encapsulation.
In link one, the test result of gateway protocol conversion is as shown in figure 8, gateway protocol changes the cipher-text information that will receive
After deciphering, verification, encryption sends again.Data in initial data text box is the data receiving repeater satellite, forwards
Data in data text frame be process after be sent to the data at charge center.Green in the path of data flow such as test result
Shown in line.
The test result of Link data is received as shown in figure 9, the data in receiving data text box is in link one
Receive frame data, be shown in the display unit receiving Link data after deciphering etc. is processed.Receive in link one
The AOS protocol data that Link protocol data sends is consistent, and test result verifies the correctness of the gateway protocol conversion in link one.
The data that in empty sky communication gate protocol conversion test system, sublink two (return link) produces includes target class
Data, frame format follows Link agreement.In link two, the test result of Link agreement generation data as shown in Figure 10, sends data
Data in text box is the frame data after Link encapsulation.
In link two, as shown in figure 11, gateway protocol changes the cipher-text information that will receive to the test result of gateway protocol conversion
After deciphering, verification, encryption sends again.Data in initial data text box is the data receiving charge center, forwards
Data in data text frame be process after be sent to the data of repeater satellite.Green in the path of data flow such as test result
Shown in line.
As shown in figure 12, the data in receiving data text box is the test result of the AOS data receiving in link two
For receiving frame data, in the display unit being shown to receiving data after deciphering etc. is processed.The AOS receiving in link two
Data is consistent with the Link data sending, and test result verifies the correctness of the gateway protocol conversion in link two.
By the simulation results of above-mentioned test link, can be all real between two copying members with validation gateway
Showed data forward it is achieved that between each agreement frame format conversion, that is, AOS agreement can be had and Link agreement between
The interoperability of effect, test result proves correctness and the validity of empty sky communication gate protocol conversion test system.
In sum, the present invention by set up a kind of towards empty sky communication gateway protocol conversion testing system and method,
The correctness of AOS agreement and Link protocol conversion and validity, gateway protocol conversion testing system therein in checking empty sky communication
System has authentic testing ability, by setting up reliable, stable, extendible gateway protocol conversion testing system, realizes not
The conversion testing of agreement between with communication system.
Finally it should be noted that：Above example only in order to technical scheme to be described, is not intended to limit；Although
With reference to the foregoing embodiments the present invention is described in detail, it will be understood by those within the art that：It still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein some technical characteristics；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (9)
1. a kind of towards empty sky communication gateway protocol conversion testing system it is characterised in that：Including server and respectively with
The first computer, second computer and the 3rd computer that described server is connected, wherein said first computer is provided with AOS association
View simulated members, described second computer is provided with Link protocol emulation member, and described 3rd computer is provided with gateway protocol conversion
Simulated members；
Described AOS protocol emulation member is used for receiving the data that described gateway protocol conversion simulated members send, and data is pressed
Parsed according to AOS agreement, and be packaged according to AOS agreement, the AOS protocol data after encapsulation is distributed to outside and is read
Take；
Described Link protocol emulation member is used for receiving the charge categorical data that described gateway protocol conversion simulated members send,
To accuse that categorical data is parsed according to class Link agreement, and be packaged according to class Link agreement, by the Link after encapsulation
Protocol data is distributed to outside and is read out；
Described gateway protocol conversion simulated members be used for according to protocol interaction side complete described AOS protocol emulation member with described
Effective protocol interaction between Link protocol emulation member, carries out effective data processing and distribution processor according to address information.
2. according to claim 1 towards empty sky communication gateway protocol conversion testing system it is characterised in that：Described
AOS protocol emulation member includes AOS agreement receiver module, AOS protocol resolution module, AOS protocol process module, the life of AOS agreement
Become module and AOS agreement sending module；
Wherein said AOS agreement receiver module is used for receiving the data that described gateway protocol conversion simulated members send, described
The data that AOS protocol resolution module is used for described AOS agreement receiver module is received parses, described AOS protocol processes mould
Block is used for carrying out data processing to the data after the parsing of described AOS protocol resolution module, and it is right that described AOS protocol generation module is used for
Data after described AOS protocol process module is processed is packaged, and described AOS agreement sending module is used for described AOS agreement
AOS protocol data after generation module encapsulation is distributed according to the form of image, data and charge categorical data segment information.
3. according to claim 1 towards empty sky communication gateway protocol conversion testing system it is characterised in that：Described
Link protocol emulation member includes Link agreement receiver module, Link protocol resolution module, Link protocol process module, Link association
View generation module and Link agreement sending module；
Wherein said Link agreement receiver module is used for receiving the data that described gateway protocol conversion simulated members send, described
The data that Link protocol resolution module is used for described Link agreement receiver module is received parses, described Link protocol processes
Module is used for carrying out data processing to the data after the parsing of described Link protocol resolution module, and described Link protocol generation module is used
Data after described Link protocol process module is processed is packaged, and described Link agreement sending module is used for described
Link protocol data after the encapsulation of Link protocol generation module enters according to the form of image, data and charge categorical data segment information
Row distribution.
4. according to claim 1 towards empty sky communication gateway protocol conversion testing system it is characterised in that：Described net
Close protocol conversion simulated members and include the first gateway protocol interactive module and the second gateway protocol interactive module, wherein said first
Gateway protocol interactive module is used for for AOS protocol data being converted to Link protocol data, described second gateway protocol interactive module
For Link protocol data is converted to AOS protocol data.
5. according to claim 5 towards empty sky communication gateway protocol conversion testing system it is characterised in that：Described net
Close protocol conversion simulated members also include start Simulation Control module, suspend Simulation Control module, continue Simulation Control module and
Terminate Simulation Control module.
6. a kind of towards empty sky communication gateway protocol conversion testing method it is characterised in that：Specifically include following steps：
By the AOS protocol emulation member in the gateway protocol conversion testing system communicating towards empty sky, Link protocol emulation member
Control initialization with gateway protocol conversion simulated members；
Start the conversion thread that gateway protocol changes simulated members, add AOS protocol emulation member and Link protocol emulation member
Carry out emulation testing；
Generate emulation data, emulation data is changed simulated members by gateway protocol and interacts conversion；
When emulating data for Link protocol data, Link protocol data is sent and carries out turning to gateway protocol conversion simulated members
Change, and by the data is activation after conversion to AOS protocol emulation member；Described AOS protocol emulation member receives described gateway association
The data that view conversion simulated members send, data is parsed according to AOS agreement, and is packaged generating according to AOS agreement
AOS protocol data；The processing procedure that Link protocol data is switched to AOS protocol data carries out simulation analysis；After simulation analysis
AOS protocol data be distributed to outside and be read out；
When emulating data for AOS protocol data, AOS protocol data is sent and carries out turning to gateway protocol conversion simulated members
Change, and by the data is activation after conversion to Link protocol emulation member；Described Link protocol emulation member receives described gateway
The data that protocol conversion simulated members send, data is parsed according to Link agreement, and is packaged according to Link agreement
Generate Link protocol data；The processing procedure that AOS protocol data is switched to Link protocol data carries out simulation analysis；By emulation point
Link protocol data after analysis is distributed to outside and is read out.
7. according to claim 6 towards empty sky communication gateway protocol conversion testing method it is characterised in that：Described net
Close protocol conversion simulated members and realize the mutual conversion between AOS transmission frame and Link transmission frame by data link layer；
During the mutual conversion of AOS transmission frame and Link transmission frame, parse valid data from one of which data form, then seal
It is attached in the valid data domain of another kind of data form；Or all data in one of which form are potted directly into another kind
In the valid data domain of data form.
8. according to claim 7 towards empty sky communication gateway protocol conversion testing method it is characterised in that：By Link
When transmission frame is converted to AOS transmission frame,
If the valid data length of field of Link transmission frame is more than the valid data length of field of AOS transmission frame, by Link transmission frame
Carry out segmentation, the wherein part of curtailment is filled with using filling field；
If the valid data length of field of Link transmission frame is equal with the valid data length of field of AOS transmission frame, directly filled out
Fill；
If the valid data length of field of Link transmission frame is less than the valid data length of field of AOS transmission frame, directly it is filled with,
The part of wherein curtailment is filled with using filling field.
9. according to claim 7 towards empty sky communication gateway protocol conversion testing method it is characterised in that：By AOS
Transmission frame is converted to comprising the following steps that of Link transmission frame：
Parsing AOS transmission frame；
Detection BPDU frame head checks whether comprise in the valid data domain of AOS transmission frame to fill data, if no filling data, directly
Connect reduction valid data；If there being filling data, after abandoning padding data, reduce valid data；
According to the segment encode of Link transmission frame, the valid data of the AOS restoring transmission frame are assembled into a Link transmission frame.
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