CN103716235A - Avionic data forwarding system and method based on ADBP communication - Google Patents
Avionic data forwarding system and method based on ADBP communication Download PDFInfo
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- CN103716235A CN103716235A CN201310753164.7A CN201310753164A CN103716235A CN 103716235 A CN103716235 A CN 103716235A CN 201310753164 A CN201310753164 A CN 201310753164A CN 103716235 A CN103716235 A CN 103716235A
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Abstract
The invention relates to the field of aerospace, and particularly discloses an avionic data forwarding system and method based on ADBP communication. The method includes the steps of providing avionic data information through a data processing module, then, processing data requests from Ethernet APPs through an ADBP communication processing module, obtaining requested avionic data information from the data processing module according to the request condition, and feeding data back to all the Ethernet APPs which request the avionic data in an ADBP communication mode after ADBP packaging is adopted, wherein communication between the ADBP communication processing module and the Ethernet APPs abides by an ARINC834-3 protocol. By means of the method, various data request methods are provided, different avionic data request methods can be selected for application programs according to the request condition of the application programs for the avionic data, and therefore the data can be effectively used.
Description
Technical field
The present invention relates to aerospace field, relate in particular to a kind of avionics data forwarding system and data forwarding method thereof.
Background technology
TCP is the communication mode of the reliable forwarding data commonly used the most, mainly after data providing is simply resolved according to the datagram receiving, the address information providing according to datagram, directly be transmitted to corresponding demand data side, existence cannot be easily and effectively according to the conditions of demand of different pieces of information being obtained to the communication mode problem of different data.In addition, forwarding rule due to effective specific data, (do not need provides always some data, but receive always) excessively provide or data (need to constantly provide, but because other data occupy bandwidth, forming network congestion cannot receive for topic) provide not enough and wait extreme phenomenon, and bring waste and the junk data of the network bandwidth, or data deficiencies impact.
At present, the avionics data of avionics core network and the transfer of data between traditional ethernet mainly realize by avionics data retransmission software (ADTS:Avioincs Data Transmit Software).ADTS receives the avionics data from each avionics system in avionics territory by aeronautical data bus, then the avionics data that receive are resolved, also need analysis result to be distributed in each Ethernet application program (APP:Application) that needs various avionics data simultaneously.
Directly adopt traditional TCP communication mode to carry out the distribution of avionics data, ADTS self cannot determine the avionics data division receiving or all be transmitted to Ethernet APP.Meanwhile, for avionics demand data side (Ethernet APP), ADTS provides avionics overabundance of data or very few, all can produce harmful effect to it, or data payload is overweight or data deficiencies, and then has influence on the realization of its function.Further, traditional TCP is the simple transmitting that guarantees data only, which avionics data what need to determine request by the agreement of extra definition is, and in the message of response, also need to distinguish which avionics data of avionics data providing in the mode of avionics data supply and demand side agreement can provide, and which avionics data cannot provide.Moreover, adopt TCP communication mode also to need avionics data supply and demand side (avionics data providing: ADTS, avionics demand data side: Ethernet APP) wrap and carry out both sides' agreement at data structure, avionics demand data can carry out resolution data bag just now according to a preconcerted arrangement, thereby obtains corresponding data.In addition, the forwarding destination of the data that traditional a plurality of address mapping table of TCP communication needs clearly receive, flexibility is poor.
Summary of the invention
An object of the present invention is, proposes a kind of avionics data forwarding system based on ADBP communication, and what it can realize data effectively provides the effective utilization with resource;
Another object of the present invention is to, a kind of avionics data forwarding method based on ADBP communication is proposed, it provides several data request mode, and application program can be selected different avionics data application ways to the conditions of demand of avionics data according to self, thereby realizes effective utilization of data.
For achieving the above object, the invention provides a kind of avionics data forwarding system based on ADBP communication, it comprises: avionics system, avionics data providing and avionics demand data side, it is characterized in that: described avionics data providing includes the avionics data retransmission software of writing to each other by aeronautical data bus and avionics system, and avionics demand data side includes the Ethernet APP contacting with avionics data retransmission software communication; In described avionics data retransmission software, include data processing module and ADBP Communications Processor Module; Described data processing module is used for resolving the avionics data that receive from avionics system, and processes the request of data from each Ethernet APP by ADBP Communications Processor Module; Described ADBP Communications Processor Module, for obtain the information of the avionics data that Ethernet APP asks from data processing module, adopts after ADBP encapsulation, more packaged data feedback is given to each Ethernet APP of request avionics data.
Concrete, in described data processing module, include,
Avionics data receiver unit: receive the avionics data that send from avionics system;
Avionics Data Analysis unit: the avionics data that receive from avionics system are resolved;
Ethernet data resolution unit: parsing sends from Ethernet APP, and need to write the data of avionics system;
Ethernet data transmitting element: the data that are parsed are write to air line by aeronautical data bus.
Further, the present invention also provides a kind of avionics data forwarding method based on ADBP communication, it comprises: by data processing module, provide avionics data message, then by ADBP Communications Processor Module, process the request of data from each Ethernet APP, and according to request situation, from data processing module, obtain the information of asked avionics data, adopt after ADBP encapsulation, by ADBP communication pattern, data feedback is given to each Ethernet APP of request avionics data, ARINC834-3 agreement is followed in communicating by letter between described ADBP Communications Processor Module and Ethernet APP.
Wherein, described data processing module is resolved the avionics data that receive from avionics system, and according to the request of data situation of Ethernet APP, follow ARINC834-3 agreement, the analysis result of corresponding avionics data is entered to encapsulation, then by ADBP Communications Processor Module by packaged avionics data retransmission in corresponding Ethernet APP.
Further, described data processing module is also responsible for resolving data that send from Ethernet APP and that need to write avionics system, after being parsed, by aeronautical data bus, analysis result is write to avionics system.
Moreover, described ADBP Communications Processor Module receives the various request messages that in Ethernet, aeronautical data had the application program of demand, then following ARINC834-3 agreement resolves request message, and confirm one by one according to the solicited message to avionics data comprising in request message, finally, according to available avionics data cases, the feedback message of structure request message sends to each Ethernet APP of request avionics data.
In the present invention, when need to arranging some avionics parameter of avionics system, Ethernet APP comprises the following steps:
Avionics parameter is set: Ethernet APP is encapsulated into the avionics parameter information of needs setting in Set Avionics Data Xml demand file;
The response of avionics parameter is set: ADBP Communications Processor Module resolves and generate Response Xml to demand file, and by the Errorcode in Response Xml, confirms the correctness of demand file, feed back to Ethernet APP;
If demand file is effective, ADBP Communications Processor Module is crossed aeronautical data bus by the information exchange of the avionics parameter of needs setting and is imported avionics system into, and then corresponding avionics data in avionics system are set; If demand file is invalid, ADBP Communications Processor Module feeds back to Ethernet APP by analysis result.
Moreover, when needing single to obtain some avionics parameter of avionics system, Ethernet APP comprises the following steps:
Obtain avionics parameter: the title of the avionics parameter that Ethernet APP need to obtain it is encapsulated in Get Avionics Data Xml demand file;
Obtain the response of avionics parameter: ADBP Communications Processor Module is resolved demand file, obtain the title of the avionics parameter that Ethernet APP need to obtain, the information of available avionics parameter is provided, feedback can not provide or the avionics parameter of nonrecognition simultaneously, and by Errorcode, confirm the correctness of demand file then above-mentioned information to be fed back to Ethernet APP.
In the present invention, when need to constantly obtaining the information of the avionics parameter that changes of avionics system, Ethernet APP comprises the following steps:
The parameter of subscribing to avionics system changes: the title of the avionics parameter that Ethernet APP need to obtain it is encapsulated in Subscribe Avionics Data On Event Xml demand file;
Subscribe to the response of the parameter variation of avionics system: ADBP Communications Processor Module is resolved demand file, obtain the title of the avionics parameter that Ethernet APP need to obtain, and provide the information of available avionics parameter, feedback can not provide or the avionics parameter of nonrecognition simultaneously, and by Errorcode, confirm the correctness of demand file then above-mentioned information to be fed back to Ethernet APP;
In demand file, subscribe to avionics parameter change time notice: ADBP Communications Processor Module is according to the effective communication port providing in demand file, with Ethernet APP set up for transmit its subscription and the communication link of discernible avionics data, when available avionics parameter changes, ADBP Communications Processor Module sends the information of vicissitudinous avionics parameter to Ethernet APP.
When need to periodically obtaining the information of some avionics parameter of avionics system, Ethernet APP comprises the following steps:
Subscribe to avionics parameter request: the title of the avionics parameter that Ethernet APP need to obtain it is encapsulated in Subscribe Avionics Parameters Xml demand file;
Subscribing to avionics parameter responds: ADBP Communications Processor Module is resolved demand file, obtain the title of the avionics parameter that Ethernet APP need to obtain, and provide the information of available avionics parameter, feedback can not provide or the avionics parameter of nonrecognition simultaneously, by Errorcode, confirm the correctness of demand file simultaneously, then above-mentioned information is fed back to Ethernet APP;
Avionics parameter is periodically notified: ADBP Communications Processor Module is according to the effective communication port providing in demand file, set up for the communication link of avionics data that need to periodically provide and discernible is provided with Ethernet APP, ADBP Communications Processor Module is according to the Refreshperiod information in demand file, Information encapsulations that Ethernet APP is asked and the avionics data that can be identified become Publish Avionics Parameters Xml file, send Ethernet APP to.
The avionics data forwarding system and the method that the present invention is based on ADBP communication, it can realize the reliable transfer of data between avionics core network and ethernet network, for the efficient communication between avionics core network and traditional ethernet provides effective way; It is without the forwarding destination of the avionics data that clearly receive by address mapping table, and the data that only need to ask according to avionics request of data side are determined the forwarding destination of the data that receive, and flexibility is higher; Meanwhile, it can realize to traditional ethernet business software the conditions of demand to different avionics data according to self, and the presentation mode of customization data realizes the data, services of high efficient and reliable; In addition, it can effectively confirm the validity of each avionics parameter that avionics demand data side asks, and in request response, accurately point out to facilitate the validity of each avionics parameter that it is asked the correctness of checking data request, thereby obtain valid data.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the communication block diagram of a kind of specific embodiment of avionics data forwarding system based on ADBP communication of the present invention;
Fig. 2 is the block diagram of avionics data retransmission software and a kind of specific embodiment of ADBP Communications Processor Module in the present invention;
Fig. 3 is the connection diagram of avionics data retransmission software and a kind of specific embodiment of Aerial Electronic Equipment in the present invention;
Fig. 4 is the Principle of Communication figure of ADBP Communications Processor Module in the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, the invention provides a kind of avionics data forwarding system based on ADBP communication, it comprises: avionics system 10, avionics data providing and avionics demand data side, described avionics data providing includes the avionics data retransmission software (ADTS:AVIOINCS DATA TRANSMIT SOFTWARE) 20 of writing to each other by aeronautical data bus 12 and avionics system 10, and avionics demand data side includes the Ethernet application program (APP:Application) 30 of writing to each other with avionics data retransmission software 20; In described avionics data retransmission software 20, include data processing module 22 and aeronautical data Radio Broadcasting Agreements (ADBP:AVIONICS DATA BROADCAST PROTOCOL) Communications Processor Module 24; Described data processing module 22 connects the 10 avionics data of receiving for resolving from avionics system, and the request of data of processing from each Ethernet APP30 by ADBP Communications Processor Module 24; Described ADBP Communications Processor Module 24, for the information of the avionics data obtaining Ethernet APP30 from data processing module 22 and ask, adopts after ADBP encapsulation, more packaged data feedback is given to each Ethernet APP of request avionics data.The present invention is based on the avionics data forwarding system of ADBP communication, avionics data retransmission software 20 is communicated by letter by ADBP, it is received to the avionics data of coming from avionics system 10 and be effectively distributed to the system that each needs corresponding avionics data, Ethernet APP30 also will communicate by letter by ADBP simultaneously, the information exchange of the avionics parameter of needs setting be crossed to avionics core network and be sent in avionics system 10.Avionics data retransmission software 20 adopts ADBP communication patterns, and the request mode of the Ethernet APP30 that needs avionics data according to each to different avionics data, distributes targetedly avionics data, thus realize data the effective utilization with resource is effectively provided.
Effective distribution that the present invention can realize avionics data receives with efficient (data timely and appropriate discovery provides), effectively utilizes the network bandwidth, and avionics demand data side is all well met the different need states of different avionics data.Wherein, described data processing module 22 is responsible for receiving and resolving the avionics data that receive from avionics system 10 on the one hand; Being responsible on the other hand resolving is Ethernet service software from Ethernet APP30() send, and need to write the data in avionics territory, this data processing module 22 is responsible for resolving the avionics data that receive from avionics system 10 on the one hand, and according to the request of data situation of Ethernet APP30, follow ARINC834-3 agreement, the analysis result of corresponding avionics data is entered to encapsulation, relend help ADBP Communications Processor Module 24 by packaged avionics data retransmission in corresponding Ethernet APP30; Responsible parsing sends from Ethernet APP30 on the other hand, and need to write the data in avionics territory, after being parsed, by aeronautical data bus 12, analysis result is write to avionics territory.The major function of described ADBP Communications Processor Module 24 is to receive the various request messages that in traditional ethernet, aeronautical data had the application program of demand, then following ARINC834-3 agreement resolves request message, and confirm one by one according to the solicited message to avionics data comprising in request message, then according to available avionics data cases, the feedback message of structure request message, in addition, also according to the situation of change of request type and requested avionics data, corresponding avionics data are provided targetedly, provide opportunity and the kind of avionics data by avionics demand data side, the request type of different avionics data to be decided.As shown in Figure 2, as a kind of specific embodiment of the present invention, in described data processing module 22, include avionics data receiver unit 222: for receiving the avionics data that send from avionics system 10; Avionics Data Analysis unit 224: for the avionics data that receive from avionics system 10 are resolved; Ethernet data resolution unit 226: parsing sends from Ethernet APP30, and need to write the data of avionics system 10; Ethernet data transmitting element 228: the data that are parsed are write to air line 10 by aeronautical data bus 12.The present invention adopts the ADBP communication mode based on ARINC834-3 agreement, not only continue the reliability of TCP communication, can also allow demand data can be according to self the conditions of demand to various avionics data, by suitable mode to data providing request msg, thereby obtain, meet self different demand to different pieces of information, effectively utilized bandwidth resources, and the heavy burden of effectively avoiding junk data to bring.
As a kind of concrete Application Example that the present invention is based on the avionics data forwarding system of ADBP communication, described avionics data retransmission software 20 is connected as shown in Figure 3 with concrete Aerial Electronic Equipment, described avionics system 10 is the mobile system 10 ' that is connected to avionics core network in aircraft control domain in figure, it is connected by aeronautical data bus communication with the avionics gateway (AG) 40 in information trusted domain, in this avionics gateway (AG) 40, includes avionics data retransmission software 20.This avionics gateway 40 by Ethernet with in the safe routing module (SRM) 41 of outside open field, write to each other.Meanwhile, in this outside open field, can also comprise respectively in the information system display terminal 42 of writing to each other with safe routing module 41, airport radio communication device 43, cabin systems 44 and ground system 45.In the present embodiment, between the mobile system 10 ' of described avionics core network and avionics data retransmission software 20, can write to each other by avionic full-duplex communication Ethernet exchange (AFDX:Avionics Full DupleX Switched Ethernet) bus 26 and ARINC429 bus 28; Described avionics gateway 40 is write to each other by gigabit Ethernet and safe routing module 41; Airport wireless communication unit (AWCU) 432 in safe routing module 41 and information system display terminal 42, airport radio communication device 43, the IOC (IOC) 442 in cabin systems 44, and all by 100 m ethernet, write to each other between the ground-support equipment in ground system 45 (GSS) 452.In the above-described embodiments, the mobile system 10 ' of avionics core network is as avionics data providing, Aerial Electronic Equipment in outside open field is as avionics demand data side, avionics data retransmission software 20 is communicated by letter by ADBP, mobile system 10 ' by it from avionics core network receives the avionics data of coming and is effectively distributed to the Aerial Electronic Equipment that each needs corresponding avionics data, as the Aerial Electronic Equipment of avionics demand data side, also will communicate by letter by ADBP simultaneously, the information exchange of the avionics parameter of needs setting is crossed in the mobile system 10 ' that avionics core network is sent to avionics core network.Avionics data retransmission software 20 is by the communication pattern of ADBP, and the request mode of each Aerial Electronic Equipment that needs avionics data to different avionics data, distributes targetedly avionics data, thus realize data the effective utilization with resource is effectively provided.
Further, the present invention also provides a kind of avionics data forwarding method based on ADBP communication, it comprises: by data processing module 22, provide avionics data message, then the request of data of processing from each Ethernet APP30 by ADBP Communications Processor Module 24, and according to request situation, from data processing module 22, obtain the information of asked avionics data, adopt after ADBP encapsulation, by ADBP communication pattern, data feedback is given to each Ethernet APP30 of request avionics data, ARINC834-3 agreement is followed in communicating by letter between described ADBP Communications Processor Module 24 and Ethernet APP30.The present invention is based on the ADBP communication mode of ARINC834-3, several data request mode is provided, application program can be selected different avionics data application ways to the conditions of demand of avionics data according to self, thereby realizes effective utilization of data.Simultaneously, affirmation mechanism to the avionics parameter of request is provided, and by Errorcode and Validity, data to the request of avionics demand data side are accurately confirmed: and the information of its available parameter is provided in acknowledge message (Response Xml), point out not available parameter, facilitate the upright really request msg of avionics demand data and effectively obtain data.In addition, avionics demand data side only need to follow the Xml encapsulation mode of ARINC834-3 agreement data are resolved, and can obtain the data of request, without additionally going, carries out too much data structure bag agreement with avionics data providing.
Wherein, described data processing module 22 is responsible for receiving and resolving the avionics data that receive from avionics system 10 on the one hand, and according to the request of data situation of Ethernet APP30, follow ARINC834-3 agreement, the analysis result of corresponding avionics data is entered to encapsulation, then by ADBP Communications Processor Module 24 by packaged avionics data retransmission in corresponding Ethernet APP30.Further, described data processing module 22 is also responsible for resolving data that send from Ethernet APP30 and that need to write avionics system 10, after being parsed, by aeronautical data bus 12, analysis result is write to avionics system 10.
Moreover, described ADBP Communications Processor Module 24 receives the various request messages that in Ethernet, aeronautical data had the application program of demand, then following ARINC834-3 agreement resolves request message, and confirm one by one according to the solicited message to avionics data comprising in request message, finally, according to available avionics data cases, the feedback message of structure request message sends to each Ethernet APP of request avionics data.In addition, ADBP Communications Processor Module 24 is also according to the situation of change of request type and requested avionics data, corresponding avionics data are provided targetedly, provide the opportunity of avionics data and kind by avionics demand data side, the request type of different avionics data to be decided.The present invention is based on ADBP communication, the data that only need to ask according to avionics request of data side are determined the forwarding destination of the avionics data that receive, and flexibility is higher.
In the present invention, ADBP Communications Processor Module 24 is followed ARINC834-3 agreement with communicating by letter of traditional ethernet APP30, ADBP communication can be for self the conditions of demand to different avionics data, realization realizes effective forwarding of avionics data to the employing ADBP of different avionics data, its data that need to ask according to avionics request of data side are determined the forwarding destination of the data that receive, and flexibility is higher; Meanwhile, ADBP communication is special is the independent data link of avionics data creation that needs periodicity maybe need monitoring to change, and can pass through the fail safe of special this data link of reinforcement, thereby make the fail safe of needed data higher.Concrete, the ADBP Principle of Communication in the present invention as shown in Figure 4:
When need to arranging some avionics parameter of avionics system 10, Ethernet APP30 comprises the following steps:
Avionics parameter (Set Avionics Data) is set: Ethernet APP30 is encapsulated into the avionics parameter information of needs setting in Set Avionics Data Xml demand file, the Ethernet APP30 as avionics demand data side becomes request XML file by the avionics parameter information of needs setting according to ADBP protocol encapsulation, by Ethernet, sends to the avionics data retransmission software 22 as avionics data providing.
The response (Set Avionics Data Response) of avionics parameter is set: after ADBP Communications Processor Module 24 receives demand file, Response Xml is resolved and generates in demand file, and by the Errorcode in Response Xml, confirm the correctness of demand file to feed back to Ethernet APP; If demand file is effective, ADBP Communications Processor Module 24 is crossed aeronautical data bus 12 by the information exchange of the avionics parameter of needs setting and is imported avionics system 10 into, and then the interior corresponding avionics data of avionics system 10 are set; If demand file is invalid, ADBP Communications Processor Module 24 feeds back to Ethernet APP30 by analysis result.In this step, avionics data retransmission software 22 according to ADBP protocol analysis, from Ethernet APP30, receive XML file, in XML file, having a field is Errorcode, if successfully resolved, the demand file that represents Ethernet APP30 is effective, Errorcode is set for " correctly ", XML, response to Ethernet APP30, and is submitted to avionics system 10 by avionics data/address bus 12 by the request of Ethernet APP30; If resolved unsuccessfully, Errorcode corresponding to setup failed reason, by XML response to Ethernet APP30.
Moreover, when needing single to obtain some avionics parameter of avionics system 10, Ethernet APP30 comprises the following steps:
Obtain avionics parameter (Get Avionics Data): the title of the avionics parameter that Ethernet APP30 need to obtain it is encapsulated in Get Avionics Data Xml demand file.
Obtain the response (Get Avionics Data Response) of avionics parameter: after ADBP Communications Processor Module 24 receives demand file, demand file is resolved, obtain the title of the avionics parameter that Ethernet APP30 need to obtain, and according to the situation of self available avionics parameter, the information of available avionics parameter is provided, feedback can not provide or the avionics parameter (the Validity attribute by this parameter identifies) of nonrecognition simultaneously, and by Errorcode, confirm the correctness of demand file, then by above-mentioned information and generate Response Xml, feed back to Ethernet APP30.
In the present invention, when need to constantly obtaining the information of the avionics parameter that changes of avionics system 10, Ethernet APP30 comprises the following steps:
The parameter of subscribing to avionics system changes (Subscribe Avionics Data On Event): the title of the avionics parameter that Ethernet APP30 need to obtain it is encapsulated in Subscribe Avionics Data On Event Xml demand file.
Subscribe to the response (Subscribe Avionics Data On Event Response) of the parameter variation of avionics system: after ADBP Communications Processor Module 24 receives demand file, according to the form of ADBP agreement, demand file is resolved, obtain the title of the avionics parameter that Ethernet APP30 need to obtain, and provide the information of available avionics parameter, feedback can not provide or the avionics parameter (the Validity attribute by this parameter identifies) of nonrecognition simultaneously, and by Errorcode, confirm the correctness of demand file, then above-mentioned information is fed back to Ethernet APP.
In demand file, subscribe to avionics parameter change time notice (On Event Avionics Data): ADBP Communications Processor Module 24 is according to the effective communication port providing in demand file (Publish Port), with Ethernet APP30 set up for transmit its subscription and the communication link of discernible avionics data, when available avionics parameter changes, ADBP Communications Processor Module 24 becomes On Event Avionics Data Xml file by the Information encapsulation of vicissitudinous avionics parameter, send Ethernet APP30 to, can effectively realize the monitoring to specific avionics parameter.
When need to periodically obtaining the information of some avionics parameter of avionics system 10, Ethernet APP30 comprises the following steps:
Subscribe to avionics parameter request (Subscribe Avionics Parameters): the title of the avionics parameter that Ethernet APP30 need to obtain it is encapsulated in Subscribe Avionics Parameters Xml demand file.
Subscribe to avionics parameter and respond (Subscribe Avionics Parameters Response): after ADBP Communications Processor Module 24 receives demand file, demand file is resolved, obtain the title of the avionics parameter that Ethernet APP30 need to obtain, and provide self information of available avionics parameter, the information of available avionics parameter is provided, feedback can not provide or the avionics parameter (the validity attribute by this parameter identifies) of nonrecognition simultaneously, by Errorcode, confirm the correctness of demand file simultaneously, then above-mentioned information is merged and generates Response Xml, feed back to Ethernet APP30.
Avionics parameter is periodically notified (Publish Avionics Parameters): ADBP Communications Processor Module 24 is according to the effective communication port providing in demand file (Publish Port), set up for the communication link of avionics data that need to periodically provide and discernible is provided with Ethernet APP30, ADBP Communications Processor Module 24 is according to the Refreshperiod information in demand file, Information encapsulations that Ethernet APP30 is asked and the avionics data that can be identified become publish Avionics Parameters Xml file, send Ethernet APP30 to, thereby can periodically obtain the information of specific avionics parameter.
Certainly, when Ethernet APP30 no longer asks newly-built communication link to obtain the avionics data of variation by it or periodically during avionics data, can close corresponding communication port by (UnSubscribe) request that cancels subscriptions, thereby close corresponding link.The response (UnSubscribe Response) of the request of then cancelling subscriptions: ADBP Communications Processor Module 24 carrys out the correctness of identification request file equally by the Errorcode in Response Xml and Validity.Because ADBP Communications Processor Module 24 is all followed ARINC834-3 protocol specification with communicating by letter of traditional ethernet APP30, so the communication between them is without carrying out extra agreement, just can be according to carrying out efficient communication.Moreover the present invention is the independent data link of avionics data creation that needs periodically maybe need monitoring variation specially, can pass through the special fail safe of strengthening this data link, thereby make the fail safe of needed data higher.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the avionics data forwarding system based on ADBP communication, comprise avionics system, avionics data providing and avionics demand data side, it is characterized in that: described avionics data providing includes the avionics data retransmission software of writing to each other by aeronautical data bus and avionics system, and avionics demand data side includes the Ethernet APP contacting with avionics data retransmission software communication; In described avionics data retransmission software, include data processing module and ADBP Communications Processor Module; Described data processing module is used for resolving the avionics data that receive from avionics system, and processes the request of data from each Ethernet APP by ADBP Communications Processor Module; Described ADBP Communications Processor Module, for obtain the information of the avionics data that Ethernet APP asks from data processing module, adopts after ADBP encapsulation, more packaged data feedback is given to each Ethernet APP of request avionics data.
2. the avionics data forwarding system based on ADBP communication as claimed in claim 1, is characterized in that, in described data processing module, include,
Avionics data receiver unit: receive the avionics data that send from avionics system;
Avionics Data Analysis unit: the avionics data that receive from avionics system are resolved;
Ethernet data resolution unit: parsing sends from Ethernet APP, and need to write the data of avionics system;
Ethernet data transmitting element: the data that are parsed are write to air line by aeronautical data bus.
3. the avionics data forwarding method based on ADBP communication, it is characterized in that, by data processing module, provide avionics data message, then by ADBP Communications Processor Module, process the request of data from each Ethernet APP, and according to request situation, from data processing module, obtain the information of asked avionics data, adopt after ADBP encapsulation, by ADBP communication pattern, data feedback is given to each Ethernet APP of request avionics data, ARINC834-3 agreement is followed in communicating by letter between described ADBP Communications Processor Module and Ethernet APP.
4. the avionics data forwarding method based on ADBP communication as claimed in claim 3, it is characterized in that, described data processing module is resolved the avionics data that receive from avionics system, and according to the request of data situation of Ethernet APP, follow ARINC834-3 agreement, the analysis result of corresponding avionics data is entered to encapsulation, then by ADBP Communications Processor Module by packaged avionics data retransmission in corresponding Ethernet APP.
5. the avionics data forwarding method based on ADBP communication as claimed in claim 4, it is characterized in that, described data processing module is also responsible for resolving data that send from Ethernet APP and that need to write avionics system, after being parsed, by aeronautical data bus, analysis result is write to avionics system.
6. the avionics data forwarding method based on ADBP communication as claimed in claim 5, it is characterized in that, described ADBP Communications Processor Module receives the various request messages that in Ethernet, aeronautical data had the application program of demand, then following ARINC834-3 agreement resolves request message, and confirm one by one according to the solicited message to avionics data comprising in request message, finally, according to available avionics data cases, the feedback message of structure request message sends to each Ethernet APP of request avionics data.
7. the avionics data forwarding method based on ADBP communication as described in claim 3-6 any one, is characterized in that, when Ethernet APP need to arrange some avionics parameter of avionics system, comprises the following steps:
Avionics parameter is set: Ethernet APP is encapsulated into the avionics parameter information of needs setting in Set Avionics Data Xml demand file;
The response of avionics parameter is set: ADBP Communications Processor Module resolves and generate Response Xml to demand file, and by the Errorcode in Response xml, confirms the correctness of demand file, feed back to Ethernet APP;
If demand file is effective, ADBP Communications Processor Module is crossed aeronautical data bus by the information exchange of the avionics parameter of needs setting and is imported avionics system into, and then corresponding avionics data in avionics system are set; If demand file is invalid, ADBP Communications Processor Module feeds back to Ethernet APP by analysis result.
8. the avionics data forwarding method based on ADBP communication as described in claim 3-6 any one, is characterized in that, when Ethernet APP needs single to obtain some avionics parameter of avionics system, comprises the following steps:
Obtain avionics parameter: the title of the avionics parameter that Ethernet APP need to obtain it is encapsulated in Get Avionics Data Xml demand file;
Obtain the response of avionics parameter: ADBP Communications Processor Module is resolved demand file, obtain the title of the avionics parameter that Ethernet APP need to obtain, the information of available avionics parameter is provided, feedback can not provide or the avionics parameter of nonrecognition simultaneously, and by Errorcode, confirm the correctness of demand file then above-mentioned information to be fed back to Ethernet APP.
9. the avionics data forwarding method based on ADBP communication as described in claim 3-6 any one, is characterized in that, when Ethernet APP need to constantly obtain the information of the avionics parameter that changes of avionics system, comprises the following steps:
The parameter of subscribing to avionics system changes: the title of the avionics parameter that Ethernet APP need to obtain it is encapsulated in Subscribe Avionics Data On Event Xml demand file;
Subscribe to the response of the parameter variation of avionics system: ADBP Communications Processor Module is resolved demand file, obtain the title of the avionics parameter that Ethernet APP need to obtain, and provide the information of available avionics parameter, feedback can not provide or the avionics parameter of nonrecognition simultaneously, and by Errorcode, confirm the correctness of demand file then above-mentioned information to be fed back to Ethernet APP;
In demand file, subscribe to avionics parameter change time notice: ADBP Communications Processor Module is according to the effective communication port providing in demand file, with Ethernet APP set up for transmit its subscription and the communication link of discernible avionics data, when available avionics parameter changes, ADBP Communications Processor Module sends the information of vicissitudinous avionics parameter to Ethernet APP.
10. the avionics data forwarding method based on ADBP communication as described in claim 3-6 any one, is characterized in that, when Ethernet APP need to periodically obtain the information of some avionics parameter of avionics system, comprises the following steps:
Subscribe to avionics parameter request: the title of the avionics parameter that Ethernet APP need to obtain it is encapsulated in Subscribe Avionic Parameters Xml demand file;
Subscribing to avionics parameter responds: ADBP Communications Processor Module is resolved demand file, obtain the title of the avionics parameter that Ethernet APP need to obtain, and provide the information of available avionics parameter, feedback can not provide or the avionics parameter of nonrecognition simultaneously, by Errorcode, confirm the correctness of demand file simultaneously, then above-mentioned information is fed back to Ethernet APP;
Avionics parameter is periodically notified: ADBP Communications Processor Module is according to the effective communication port providing in demand file, set up for the communication link of avionics data that need to periodically provide and discernible is provided with Ethernet APP, ADBP Communications Processor Module is according to the Refreshperiod information in demand file, Information encapsulations that Ethernet APP is asked and the avionics data that can be identified become Publish Avionic Parameters Xml file, send Ethernet APP to.
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| CN103716235B (en) | 2017-01-18 |
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