CN104734928B - A kind of IMA core calculations/processing platform of cross-connect - Google Patents

Abstract

The present invention proposes a kind of IMA core calculations/processing platform of cross-connect, include the synthesis core processor ICP of 2 symmetrical module failure tolerances, wherein every ICP includes multiple general purpose processing block CPM, multiple pattern process module GPM, 1 mass memory module MMM, 2 AFDX network exchange modules ASM, 2 power module PSM and 2 crossover network interface X, multiple AFDX Network-Node Interfaces, 1 ICP position identification signal；The remote data concentrator RDC of 1 expansible tandem type double remaining AFDX communications network systems and 1 double remaining.A kind of IMA core calculations/processing platform of cross-connect of the present invention, open system framework, the design of software/hardware interface standard based on unified express network, can enhance LRM module versatilities, and support the different mashed up uses of supplier products, improve safety.

Description

A kind of IMA core calculations/processing platform of cross-connect

Technical field

The present invention relates to airborne computer system field more particularly to a kind of comprehensively modularized avionics system based on The IMA platform architectures of AFDX networks, open cross-connect.

Background technology

As airborne computer, communication network and encapsulating structure technology continue to develop, big aircraft（Transporter, passenger plane etc.）Boat Electricity and task system increasingly bulky complex, security requirement higher：The safe class requirement of IMA core calculations/processing platform Not less than B grades（I.e. crash rate is less than 10^-7）, airborne communication network safety grade be not less than A grades（Crash rate is less than 10^-9）.By this The traction of one demand, a kind of High Speed I MA core calculations/processing of high safety, communication network, system encapsulation and interfacing obtain It rapidly develops and applies.The system architecture of IMA platforms, important component（Equipment/module）And its interconnection mode, to avionics and task Overall system structure, performance and the safety of system will generate significant impact, be the key technology of system design.IMA is flat at present Platform mostly uses a kind of architecture or non-open type architecture of non-crossing interconnection, and this system architecture design exists potential The security risk of Single Point of Faliure, common mode failure and common cause fault（As i.e. when 1 group of resource failed, 1 design defect or 1 common mode When failure occurs, entire avionics system function will be caused to lose）, therefore there is an urgent need to a kind of cross-connects for airplane design of new generation , open IMA platform architectures, to enhance system robustness, while improving system failure fault-tolerant ability, reliability and can The property used.

Invention content

In order to solve the technical problem in the presence of background technology, the present invention proposes a kind of IMA cores of cross-connect Calculating/processing platform, open system framework, the design of software/hardware interface standard based on unified express network, can enhance LRM Module versatility, and support the different mashed up uses of supplier products, improve safety.

Technical solution of the invention is：A kind of IMA core calculations/processing platform of cross-connect, special character It is：Including comprehensive core processor and with the comprehensive core processor ICP communications network systems communicated and teledata Concentrator；The comprehensive core processor ICP is two；Remote data concentrator RDC is two, respectively with comprehensive core processing Machine ICP is correspondingly connected with；Comprehensive core processor ICP realizes that the control of entire avionics system calculates, with management, data at information Reason, data storage, data communication and data add unloading to service.

Above-mentioned communications network system includes interchanger, terminal system ES and electrical transmission media；Using meeting ARINC664 Double remaining AFDX network designs of standard are realized between each function module of IMA internal systems, between air equipment or subsystem Interconnection communication.

Comprehensive core processor ICP defines 5 kinds of function modules and 2 kinds of PMC backboards, 5 kinds of function modules, that is, general procedure mould Block CPM, pattern process module GPM, mass memory module MMM, network exchange module NSM, power module PSM；2 kinds of PMC Backboard, that is, massage storage daughter board MEM, graphics driver daughter board GEM；Pattern process module GPM uses CPM+GEM daughter board forms；Greatly Capacity memory module MMM uses CPM+MEM daughter board forms.

Remote data concentrator RDC, using sensor/actuator/cockpit installation form nearby, in realization system at a slow speed Bus, analog interface, discrete magnitude interface signal/data acquisition, pretreatment, data forwarding and system interface management function.

Above-mentioned interchanger is two, is respectively assembled in 2 physically completely self-contained comprehensive core processor ICP On, when wherein 1 interchanger failure, whole system functional safety, and do not degrade;Terminal system is respectively embedded in synthetic nucleus Inside heart processor ICP in each function module, and provide the AFDX network interfaces of double remainings.

The network topology structure of cross-connect is each function module in ICP, is cross connected to local ICP interchangers respectively With the remaining interchanger in backup ICP, double remaining communication structures of 2 interchangers of interconnection are provided.

It is an advantage of the invention that：

1) open system framework of unified express network, the design of software/hardware interface standard, it is general can to enhance LRM modules Property, and support the different mashed up uses of supplier products, improve safety;

2) starshaped net topology, double remaining redundancies and distributed isolation package technique design of cross-connect are used, The potential security risk of non-crossing interconnection architecture can be eliminated（Such as Single Point of Faliure, common mode failure, common cause fault）, enhancing tying stalwartness Property, improve its safety and Fault Tolerance;

3) depth module synthesization, High Density Packaging, the encapsulation of IMA systems and interfacing design are used, single mode is realized Block synthetic function designs, and makes system synthesization degree height, and greatly reduce the volume, weight and power consumption of system;

4) by configurable modularized design, make system that there is flexible autgmentability and maintainability, and function can be passed through The flexible configuration of module is come the needs of meeting different-scale systems or platform.

Description of the drawings

Fig. 1 is the system structure diagram of the present invention；

Specific implementation mode

Fig. 1 is participated in, the present invention develops a kind of IMA platform bodies based on double remaining AFDX networks, open cross-connects System structure, the system is mainly by comprehensive core processor（ICP）, high-speed network appliance（The network switch, terminal system ES）, it is remote Journey data concentrator（RDC）Composition, embodiments thereof are as follows：

1.IMA plateform system architecture designs：IMA platforms are mainly by 2 ICP, 2 RDC, 2x2 network switch and multiple Embedded ES compositions.Using " ICP+ express networks+RDC " architectural form design, wherein ICP as IMA plateform systems control and The core of management, realize the control of entire avionics system communicated with management, data calculating, information processing, data storage, data and Data add unloading to service；" nerve center " of the express network as system, using the double remaining AFDX for meeting ARINC664 standards Network design is realized between each function module of IMA internal systems, the interconnection communication between air equipment or subsystem；RDC conducts A kind of multiplex roles unit of complexity, using sensor/actuator/cockpit installation form nearby, low speed bus in realization system （Such as 429 buses, 1553B buses）, analog interface, the acquisition of discrete magnitude interface signal/data, pretreatment, data forwarding（Slowly Fast signal-express network, express network-slow speed signal）And system interface management function.

2. the AFDX network designs of cross-connect：IMA platform AFDX communication networks are mainly by interchanger, terminal system（ES） And electrical transmission media（Dedicated transmissions cable etc.）Composition.Embedded-type modularized structure type is used first, by different supplier 2x2 Switch module is respectively assembled in 2 and is physically completely independent in ICP, the mashed up double remaining ICP used is formed, when wherein When 1 failure, whole system functional safety, and do not degrade;Intellectual end system ES is respectively embedded in each function mould inside ICP In block, and provide the AFDX network interfaces of double remainings.It, will again by a kind of double remaining starshaped net topologies of cross-connect All devices and function module in system connect as an organic whole, and realize that by the communication of mutual data Cooperation around here, it is common to complete system function and task.

3. the ICP designs of system core component：COMPREHENSIVE CALCULATING/processing platforms of the ICP as IMA systems, be system control and The core of management realizes that the function treatment of entire avionics system, data calculate, data storage, data communicate and data add/unload Service.Its design is as follows：

（1）ICP architecture designs：Using " integrated stand（IMB containing backplane base plate）+ LRM modules " system configurations, definition 5 kinds of standard modules and 2 kinds of PMC backboards, i.e. general purpose processing block（CPM）, pattern process module（GPM）Mass memory module MMM）, network exchange module（NSM）, power module（PSM）, and massage storage daughter board（MEM）, graphics driver daughter board （GEM）.The system of different disposal platform or different scales demand designs, and can be subject to by the flexible configuration of different function module It realizes.

（2）Function module design：Using " depth synthesization " concept and " general procedure substrate（CPM）+ special function is carried on the back Plate " structure type designs, for accommodation function module（Such as massive store, pattern process module）It can be different special by configuring It is realized with backboard.

（3）The encapsulation of module and Interface design, using modular avionics unit（AMU）Form, and meet ARINC650 standards.IMA platform features module definition is referring to table 1；

Table 1

Claims (6)

1. a kind of IMA core calculations/processing platform of cross-connect, it is characterised in that：Including comprehensive core processor ICP, with And realize the communications network system and remote data concentrator RDC of synthesization modular avionics system IMA interconnection communications； The comprehensive core processor ICP is calculating/processing platform of 2 symmetrical module failure tolerances, is divided into ICP1 and ICP2, described comprehensive It includes one group of general configurable redundant module and interface to close core processor ICP, i.e., multiple general purpose processing block CPM, multiple Pattern process module GPM, 2 mass memory module MMM, 4 AFDX network exchange modules ASM and 2 crossover networks Interface X, multiple AFDX Network-Node Interfaces, 1 ICP position identification signal；AFDX communications network systems include that remaining is intersected mutually Network exchange module ASM, the multiple built-in network end system ES that starshaped net topology even, 2 group redundancies are isolated；Remotely Data concentrator RDC is the remaining interface unit of 2 physical separation, respectively with 2 ICP interconnections；Comprehensive core processor ICP realizes the control of entire avionics system and management, data calculating, information processing, data storage, data communicate and data add Unloading service；

The mass memory module MMM, including mutually redundant 2, realize central maintenance, the event of entire IMA systems Barrier management, data record, ground maintenance and data such as add/unload at the functions；Remaining separate type fault-tolerance architecture is taken, respectively group In 2 physically completely self-contained ICP；It is encapsulated and interface uses and meets the encapsulation of IMA systems and interface standard 2 avionics modular unit 2AMU modular forms of ARINC650；

General purpose processing block CPM, pattern process module GPM, mass memory module MMM in wherein ICP1 are exchanged with AFDX Modules A SM1-A is connected, while being connected with the crossover network interface X of ICP1；AFDX Switching Modules ASM1-A and AFDX Switching Modules ASM2-A phases cascade, and are connected with remote data concentrator RDC, AFDX network node j；AFDX Switching Modules ASM2-A and remaining RDC, AFDX network node i are connected；Module CPM, GPM, MMM in ICP2 are connected with AFDX Switching Modules ASM2-B, while with The crossover network interface X of ICP2 is connected；AFDX Switching Modules ASM2-B and ASM1-B phases cascade, with remaining RDC, AFDX network section Point i is connected；AFDX Switching Modules ASM1-B is connected with RDC, AFDX network node j；ICP position identification signals and ICP1 and ICP2 In be connected.

2. IMA core calculations/processing platform of cross-connect according to claim 1, it is characterised in that：The communication network Network system includes that the starshaped net topology of cross-connect, the 2x2 network switch, multiple terminal system ES and electrical transmission are situated between Matter；Using the double remaining AFDX network designs for meeting ARINC664 standards, between realization each function module of IMA internal systems, navigate The fault-tolerant interconnection communication of high safety between electric equipment or subsystem；Wherein, the 2x2 network switch is two groups of double remaining AFDX Network exchange core, the 2x2 network switch are taken based on the configurable moduleization design of position identification, meet ARINC650 standards 1AMU modular forms, realize that the flexible configuration of AFDX networks, the mashed up use of different supplier products, fault tolerant data exchange； Terminal system ES is respectively embedded in inside ICP in each module, provides the AFDX nets of configurable, embedded, intelligentized double remainings Network interface.

3. IMA core calculations/processing platform of cross-connect according to claim 1 or 2, it is characterised in that：Synthetic nucleus Heart processor ICP defines 5 kinds of function modules and 2 kinds of PMC backboards, wherein 5 kinds of function modules include general purpose processing block CPM, figure Shape processing module GPM, mass memory module MMM, network exchange module NSM, power module PSM；2 kinds of PMC backboards are sea Measure memory daughter board MEM, graphics driver daughter board GEM；Pattern process module GPM uses CPM+GEM daughter board module architectures forms；Greatly Capacity memory module MMM uses CPM+MEM daughter board module architectures forms；Each function module in wherein ICP, takes depth Synthesization, modularization and configurable design are spent, network communication meets ARINC664 standards, module encapsulation meets ARINC650 marks It is accurate.

4. IMA core calculations/processing platform of cross-connect according to claim 3, it is characterised in that：The long-range number According to concentrator RDC, takes double remaining tolerant system frameworks, synthesization interface, sensor/cockpit to design nearby, intersect respectively Connect 2 ICP in remaining interchanger, realize IMA systems in high speed AFDX networks, at a slow speed 429 buses, discrete magnitude signal it is more Kind interface function, system interface signal/data acquisition, pretreatment, data forwarding and interface management function.

5. IMA core calculations/processing platform of cross-connect according to claim 4, it is characterised in that：The interchanger ASM is four, constitutes the double remaining AFDX networks of two groups of tandem types, and remaining is respectively assembled in 2 and is physically completely independent ICP in, when 2 interchangers failure in wherein 1 interchanger or 1 network remaining P, entire IMA system functions peace Entirely, and do not degrade；Terminal system ES is multiple, is respectively embedded in the AFDX nets that double remainings in each function module, are provided inside ICP Network interface.

6. IMA core calculations/processing platform of cross-connect according to claim 5, it is characterised in that：Take intersection mutual Starshaped net topology even, double remaining redundancies and distributed isolation assembling design technology, for eliminating non-crossing mutual frame linking The potential security risk of structure enhances system robustness, improves security of system and fault-tolerant ability.