CN114895873A - Resident application integration method and device for distributed comprehensive modular avionics system - Google Patents
Resident application integration method and device for distributed comprehensive modular avionics system Download PDFInfo
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- CN114895873A CN114895873A CN202210521651.XA CN202210521651A CN114895873A CN 114895873 A CN114895873 A CN 114895873A CN 202210521651 A CN202210521651 A CN 202210521651A CN 114895873 A CN114895873 A CN 114895873A
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Abstract
The invention discloses a resident application integration method and a resident application integration device for a distributed comprehensive modular avionics system, wherein the integration method comprises the following steps: dividing a plurality of resource processing modules in a DIMA framework into a control domain and an information domain, wherein the control domain and the information domain respectively comprise at least one resource processing module, the resource processing module in the control domain is used for residing a first resident application, and the resource processing module in the information domain is used for residing a second resident application; respectively acquiring a public application of a first resident application and a public application of a second resident application; each resource processing module which resides the public application of the acquired first resident application in the control domain; and determining one resource processing module in the information domain as a target resource processing module, residing the acquired public application of the second resident application in the target resource processing module, and carrying out data communication between other resource processing modules in the information domain and the target resource processing module.
Description
Technical Field
The invention relates to the technical field of avionics, in particular to a resident application integration method and device of a distributed comprehensive modular avionics system.
Background
An Integrated Modular Avionics (IMA) is an Avionics Integrated architecture adopted by a typical airplane in active service, the IMA completes high integration of software and hardware, realizes centralized control of the whole airplane through a high-speed AFDX bus network, and simultaneously realizes corresponding airborne system functions through different partition applications residing on a hardware resource platform. B787, A380 and A350 and a C919 aircraft avionics system of China commercial aircraft company adopt IMA architecture. According to the IMA resource allocation mode, IMA architectures are divided into centralized and distributed architectures, B787 is a typical representative of centralized IMA, processing modules are centralized in the same cabinet for processing, a380 is a typical representative of distributed IMA architectures, and interface modules and processing modules are distributed in one cabinet in processing cabinets of different areas on the machine according to functional partitions.
The avionic core processing system of the A380 aircraft comprises four functional partitions including a cockpit, a passenger cabin, energy and public equipment and different functional partitions, a plurality of IMAs are connected by using a unified AFDX network to jointly manage and execute an avionic task of the whole aircraft, an avionic core processing and input/output module adopted by the IMAs of the A380 is called CPCOM, and each CPCOM module mainly comprises a CPU board card, various types of I/O board cards, a power supply board card and front and back panels.
In the existing integrated modular avionics system architecture, no matter a centralized IMA architecture or a distributed IMA architecture, all airplane residence functions reside in an IMA processing cabinet (a B787 airplane and a C919 airplane both reside in a GPM of a CCR cabinet, and an a380 airplane is completed by a processing unit in a CPIOM), and under the distributed IMA architecture, integration of residence applications is developed based on system function partition. The division mode ensures that the functions of different resident application levels reside in the hardware environment with the same architecture design, so that the complexity of software design and the error probability of software are increased, and the overall performance of the system is sacrificed; with the continuous development of the technology, the avionic system is increasingly large and the integration level is higher, the existing centralized or distributed integrated modular avionic system (IMA) architecture is adopted, the distribution of avionic core processing cabinet resources is more and more complicated, and the overall performance of the system is influenced with the increase of resident applications.
Disclosure of Invention
Objects of the invention
The invention aims to provide a resident application integration method and a resident application integration device for a distributed comprehensive modularized avionics system, which adopt different integration strategies to reside system functions according to different function domains of resident applications, thereby improving the integration degree and integration degree of an aircraft system and simultaneously improving the system performance.
(II) technical scheme
To solve the above problem, a first aspect of the present invention provides a method for integrating resident applications of a distributed integrated modular avionics system, including: dividing a plurality of resource processing modules in a DIMA architecture into a control domain and an information domain, wherein the control domain and the information domain respectively comprise at least one resource processing module, the resource processing module in the control domain is used for residing a first resident application, and the resource processing module in the information domain is used for residing a second resident application; respectively acquiring a public application of the first resident application and a public application of the second resident application; each resource processing module which resides the acquired public application of the first resident application in a control domain; and determining one resource processing module in the information domain as a target resource processing module, and residing the acquired public application of the second resident application in the target resource processing module, wherein other resource processing modules in the information domain are in data communication with the target resource processing module.
Optionally, the method for integrating the resident applications of the distributed integrated modular avionics system further includes: classifying the applications to be resided into DAL A, DAL B, DAL C, DAL D and DAL E grades according to the development guarantee grade; the first resident application comprises DAL A, DAL B and DAL C level quasi-resident applications, and the second resident application comprises DAL D and DAL E level quasi-resident applications.
Optionally, the control domain at least includes six resource processing modules, and the resource processing modules in the control domain are configured in a COM/MON comparison monitoring mode.
Optionally, the integration method further includes: acquiring a security application in the first resident application; prioritizing the security applications; collecting first resource requirements of other resident applications in the first resident application except the security application; and according to the collected first resource requirements, distributing other resident applications except the security application in the first resident application to resource processing modules in the control domain respectively.
Optionally, the integration method further includes: collecting a total amount of second resource requirements of the second resident application; and determining the total amount of the resource processing modules in the information domain according to the total amount of the second resource demand.
Optionally, the resource requirement includes a computing resource, a network resource, and an interface resource.
Optionally, the obtaining the common application of the first resident application and the common application of the second resident application respectively includes: and establishing a resource demand matrix according to the resource demand so as to extract the common application of the first resident application and/or the common application of the second resident application.
Optionally, the number of switches and the number of regional distribution centers are respectively determined according to the total amount of network resources and the total amount of interface resources required by the first resident application and the second resident application.
Optionally, the resource processing module in the control domain uses two or three redundancies; and the resource processing module in the information domain uses single redundancy.
The invention provides a distributed comprehensive modularized avionics system resident application integrated device in a second aspect, which comprises: the system comprises a dividing unit, a processing unit and a processing unit, wherein the dividing unit is used for dividing a plurality of resource processing modules in a DIMA framework into a control domain and an information domain, the control domain and the information domain respectively comprise at least one resource processing module, the resource processing module in the control domain is used for residing a first resident application, and the resource processing module in the information domain is used for residing a second resident application; an acquisition unit configured to acquire a common application of the first resident application and a common application of a second resident application, respectively; a first resident unit, configured to reside the acquired common application of the first resident application in each resource processing module in a control domain; and the second resident unit is used for determining one resource processing module in the information domain as a target resource processing module, and residing the acquired public application of the second resident application in the target resource processing module, and the other resource processing modules in the information domain carry out data communication with the target resource processing module.
(III) advantageous effects
The technical scheme of the invention has the following beneficial technical effects:
1. the first resident application and the second resident application can be classified according to DAL grades, the functional domain of the airplane system is divided into a control domain and an information domain, and the functional domain is divided in the control domain and the information domain, so that coupling among systems is reduced, and software design complexity is reduced.
2. By acquiring the public application in the first resident application and the second resident application, the public application of the first resident application resides in each CPM of the control domain, so that the integrity of the system is improved, and the utilization rate of the system is improved; for the public application of the second resident application, the second resident application can reside in a certain single CPM in the information domain, and the other resident applications can realize the integration of the system by performing data interaction with the CPM, so that the degree of integration of the aircraft system is improved.
3. According to different function domains of the resident applications, different integration strategies are adopted to reside the system functions, so that the system performance is improved.
Drawings
FIG. 1 is a flow chart of a distributed integrated modular avionics system resident application integration method of an embodiment of the present invention;
FIG. 2 is a flow chart of a distributed integrated modular avionics system resident application integration method in accordance with another embodiment of the present invention;
FIG. 3 schematically illustrates the partitioning of functional domains in a DIMA architecture;
fig. 4 is a schematic structural diagram of a resident application integration device of a distributed integrated modular avionics system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
A first aspect of the present invention provides a method for integrating resident applications of a distributed integrated modular avionics system, as shown in fig. 1, specifically including the following steps:
step S110, dividing a plurality of resource processing modules in a Distributed Integrated Modular Avionics (DIMA) architecture into a control domain and an information domain, where the control domain and the information domain respectively include at least one resource processing module, the resource processing module in the control domain is used for residing a first resident application, and the resource processing module in the information domain is used for residing a second resident application.
Step S130, respectively obtaining the public application of the first resident application and the public application of the second resident application.
Step S150, residing the acquired common application of the first resident application in each resource processing module in the control domain.
Step S170, determining one resource processing module in the information domain as a target resource processing module, and residing the acquired public application of the second resident application in the target resource processing module, where the other resource processing modules in the information domain perform data communication with the target resource processing module. Other resource processing modules in the information domain can perform data interaction with the target resource processing module through the data bus, so that the resource utilization rate is improved, and the integration level is improved.
The first resident application and the second resident application can be classified according to DAL grades, the functional domain of the aircraft system is divided into a control domain and an information domain, and meanwhile, the functional domain is divided in the control domain and the information domain, so that coupling among systems is reduced, and the complexity of software design is reduced. By acquiring the public application in the first resident application and the second resident application, the public application of the first resident application resides in each CPM of the control domain, so that the integrity of the system is improved, and the utilization rate of the system is improved; for the public application of the second resident application, the second resident application can reside in a certain single CPM in the information domain, and the other resident applications can realize the integration of the system by performing data interaction with the CPM, so that the degree of integration and integration of the aircraft system is improved, and the performance of the system is improved.
In an alternative embodiment, the method for integrating the resident applications of the distributed integrated modular avionics system further comprises: step S120, classifying the applications to be resided into DAL A, DAL B, DAL C, DAL D and DAL E grades according to the development guarantee grade; the first resident application comprises DAL A, DAL B and DAL C level quasi-resident applications, and the second resident application comprises DAL D and DAL E level quasi-resident applications. The application to be resident can comprise all resident applications of the distributed comprehensive modular avionics system, the functional domain of the application to be resident is divided according to DAL levels, the requirements of high integrity and high reliability required by the system are guaranteed on the framework, the resident applications of different levels are separated, and the integration of the resident applications is more flexible.
In an alternative embodiment, the control domain includes at least six resource processing modules, and the resource processing modules in the control domain are configured in a COM/MON comparison monitoring mode. The COM/MON comparison monitoring pair mode can be that a COM channel is a command channel, and an instruction is obtained after processing operation; and the MON channel is a monitoring channel, the COM channel operation result is compared and monitored, if the comparison result exceeds the allowable threshold range, the command channel is interrupted to output the instruction, otherwise, the command channel can output the instruction, and therefore the COM channel and the MON channel operate in pairs. Meanwhile, cross comparison is adopted, and a resource processing module in a control domain is used by adopting two redundancies or three redundancies according to requirements; in the information domain, single redundancy is directly used for guaranteeing, so that the safety level of the system can be guaranteed directly on the architecture.
In an optional embodiment, after obtaining the common application of the first resident application, the integration method further includes:
step S140, obtaining a security application in the first resident application;
step S141, the security application is preferentially distributed;
step S142, collecting first resource requirements of other resident applications except the security application in the first resident application;
step S143, according to the collected first resource requirement, allocating other resident applications except the security application in the first resident application to resource processing modules in the control domain, respectively.
The first resident application is subjected to independence division, and security analysis is carried out to obtain security application; wherein the security applications comprise resident applications that cause catastrophic events for combined failures, the security applications are allocated preferentially; extracting the security application and the remaining resident applications of the public application from the first resident application, and collecting first resource requirements of the resident applications according to the development guarantee level; and distributing the rest resident applications to the resource processing modules in the control domain respectively according to the collected first resource requirements.
In an optional embodiment, the integration method further comprises:
step S160, collecting a total amount of the second resource requirement of the second resident application; and determining the total amount of the resource processing modules in the information domain according to the total amount of the second resource demand.
In an alternative embodiment, the first resource requirement and the second resource requirement each comprise a computing resource, a network resource, and an interface resource.
In an alternative embodiment, step S130, obtaining the public application of the first resident application and the public application of the second resident application respectively includes:
step S131, a resource demand matrix is established according to the resource demand so as to extract the public application of the first resident application and/or the public application of the second resident application. By establishing a resource demand matrix for computing resources, network resources, interface resources and the like, the demands of resident applications can be collected, and the public application of the first resident application and/or the public application of the second resident application can also be extracted. In some embodiments, the extracting of the public application of the first resident application may be, after the security application is obtained, establishing a resource requirement matrix according to resource requirements of the remaining resident applications to extract the public application; or a resource requirement matrix is established according to the resource requirements of all the applications to be resident in the first resident application to extract the common application.
In an optional embodiment, the number of switches and the number of regional distribution centers are respectively determined according to the total amount of network resources and the total amount of interface resources required by the first resident application and the second resident application.
In an alternative embodiment, the resource processing module in the control domain uses two or three redundancies; and the resource processing module in the information domain uses single redundancy.
The present invention will be described in further detail with reference to the method steps, but the invention is not limited thereto.
As shown in fig. 2, a method for integrating a resident application of a distributed integrated modular avionics system according to another embodiment of the present invention may include the following steps:
step S210, dividing a plurality of resource processing modules in the DIMA architecture into a control domain and an information domain. Firstly, functional domain division is carried out on distributed IMA platform resources: the distributed IMA platform computing resources are mainly executed by a resource processing module (CPM), the CPM in a DIMA framework is divided into an airplane control domain and an information domain, the control domain at least comprises six CPMs, and the information domain is determined according to the number of airplane residence functions; the control domain is used for residing systems for developing the assurance levels DAL A, DAL B and DAL C, such as a flight management system, and the airplane information domain is used for residing systems for developing the assurance levels DAL D and DAL E, such as an airborne maintenance system; the resource processing module in the control domain appears in a COM/MON comparison monitoring pair mode, so that the high integrity requirement of resident application can be ensured on the system architecture, and the information domain only needs to be divided according to the resource requirement of the resident application. The specific functional domain division is shown in fig. 3.
Step S220, the applications to be resided are classified according to DAL grades, the resident applications of DAL A, DAL B and DAL C grades are divided into first resident applications, the resource processing module in the control domain is used for residing the first resident applications, the resident applications of DAL D and DAL E grades are divided into second resident applications, and the resource processing module in the information domain is used for residing the second resident applications.
Step S230, performing function independence on the first resident application, performing security analysis, and separately processing the resident applications whose combined failures may cause catastrophic events, where other resident applications in the first resident application collect resource requirements of each resident application according to DAL levels, where the resource requirements include computing resources, network resources, and interface resources.
Step S240, extracting the public application of the first resident application, and residing the public application software in 6 CPMs; and comprehensively calculating the resource requirements required by the first resident application according to the resources required by each resident application, preferentially and separately allocating the resident applications with catastrophic events caused by the combined faults in the step S230, and then respectively allocating the resident applications to the CPMs in the control domain according to the total amount of the required resource requirements.
Step S250, collecting resources required by the second resident application, determining the total amount of CPMs in the information domain according to the total amount of processing resource demands, and determining the number of switches and the number of RDCs (regional distribution centers) according to the total amount of network resources and the total amount of interface resources required by the first resident application and the second resident application, respectively.
Step S260, extracting the public application of the second resident application, and enabling the public application to reside in a certain CPM in the information domain, wherein CPMs of other resident applications in the information domain are communicated with the CPM of the resident public application, so that the resource utilization rate is improved, and the system integration level is improved.
According to the embodiment of the invention, different integration strategies are adopted to carry out system function residence according to different function domains to which resident applications belong, so that the degree of integration and integration of an aircraft system is improved, and the system performance is improved.
Based on the same inventive concept, a second aspect of the present invention provides a distributed integrated modular avionics system resident application integration apparatus, configured to perform the above-mentioned distributed integrated modular avionics system resident application integration method, as shown in fig. 4, the integrated apparatus includes: a dividing unit 410, configured to divide a plurality of resource processing modules in a DIMA architecture into a control domain and an information domain, where the control domain and the information domain respectively include at least one resource processing module, the resource processing module in the control domain is configured to reside a first resident application, and the resource processing module in the information domain is configured to reside a second resident application; an obtaining unit 420, configured to obtain a common application of the first resident application and a common application of a second resident application, respectively; a first resident unit 430, configured to reside the acquired common application of the first resident application in each resource processing module in a control domain; the second residence unit 440 is configured to determine that one resource processing module in the information domain is a target resource processing module, and to residence the acquired common application of the second residence application in the target resource processing module, where other resource processing modules in the information domain perform data communication with the target resource processing module.
The specific shape and structure of each unit are not limited in the embodiments of the present invention, and those skilled in the art can arbitrarily set the units according to the implemented functional effects, which is not described herein again; in addition, the specific implementation process and implementation effect of the operation steps implemented by the units in the embodiment of the present invention are the same as the specific implementation process and implementation effect of steps S110 to S170 in the embodiment of the present invention, and the above statements may be specifically referred to, and are not repeated herein.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A resident application integration method of a distributed comprehensive modular avionics system is characterized by comprising the following steps:
dividing a plurality of resource processing modules in a DIMA architecture into a control domain and an information domain, wherein the control domain and the information domain respectively comprise at least one resource processing module, the resource processing module in the control domain is used for residing a first resident application, and the resource processing module in the information domain is used for residing a second resident application;
respectively acquiring a public application of the first resident application and a public application of the second resident application;
each resource processing module which resides the acquired public application of the first resident application in a control domain;
and determining one resource processing module in the information domain as a target resource processing module, and residing the acquired public application of the second resident application in the target resource processing module, wherein other resource processing modules in the information domain are in data communication with the target resource processing module.
2. The integration method of claim 1, further comprising:
classifying the applications to be resided into DAL A, DAL B, DAL C, DAL D and DAL E grades according to the development guarantee grade;
the first resident application comprises DAL A, DAL B and DAL C level quasi-resident applications, and the second resident application comprises DAL D and DAL E level quasi-resident applications.
3. The integration method according to claim 1, wherein the control domain comprises at least six resource handling modules, and the resource handling modules in the control domain are configured in a COM/MON comparison monitoring mode.
4. The integration method of claim 3, further comprising:
acquiring a security application in the first resident application;
prioritizing the security applications;
collecting first resource requirements of other resident applications in the first resident application except the security application;
and according to the collected first resource requirements, distributing other resident applications except the security application in the first resident application to resource processing modules in the control domain respectively.
5. The integration method of claim 4, further comprising:
collecting a total amount of second resource requirements of the second resident application;
and determining the total amount of the resource processing modules in the information domain according to the total amount of the second resource demand.
6. The integration method of claim 5, wherein the first resource requirement and the second resource requirement each comprise a computing resource, a network resource, and an interface resource.
7. The integration method of claim 6, wherein obtaining the common application of the first resident application and the common application of the second resident application respectively comprises:
and establishing a resource demand matrix according to the resource demand so as to extract the common application of the first resident application and/or the common application of the second resident application.
8. The integration method according to claim 6, wherein the number of switches and the number of regional distribution centers are determined according to a total amount of network resources and a total amount of interface resources required by the first resident application and the second resident application, respectively.
9. The integration method according to claim 1, wherein the resource processing module in the control domain uses two or three redundancies;
and the resource processing module in the information domain uses single redundancy.
10. A distributed integrated modular avionics system resident application integration device, comprising:
the system comprises a dividing unit, a processing unit and a processing unit, wherein the dividing unit is used for dividing a plurality of resource processing modules in a DIMA framework into a control domain and an information domain, the control domain and the information domain respectively comprise at least one resource processing module, the resource processing module in the control domain is used for residing a first resident application, and the resource processing module in the information domain is used for residing a second resident application;
an acquisition unit configured to acquire a common application of the first resident application and a common application of a second resident application, respectively;
a first resident unit, configured to reside the acquired common application of the first resident application in each resource processing module in a control domain;
and the second resident unit is used for determining one resource processing module in the information domain as a target resource processing module, and residing the acquired public application of the second resident application in the target resource processing module, wherein other resource processing modules in the information domain are in data communication with the target resource processing module.
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