RU2392194C1 - Aircraft navigation and control onboard digital computer (obdc) - Google Patents

Abstract

FIELD: instrument making. ^ SUBSTANCE: hardware complex comprises central processor module, peripheral processor module, I/O and memory module and is connected via data exchange channel with onboard and ground hardware. Proposed complex comprises set of program-algorithm means incorporating program-algorithm modules of system computation-logical and functional computation logical means interconnected via computation-logical exchange main line and provides for computation and exchange between onboard and ground equipment in real time. OBDC additionally comprises program-algorithm module of adaptation and reconfiguration of system and functional computation logical means to notably expand operating performances of onboard computers to optimise their resources and to provide for serviceability in hardware and software failures. ^ EFFECT: higher efficiency of aircraft control. ^ 1 dwg

Description

The invention relates to the field of aviation instrumentation, and in particular to on-board digital computing devices, providing interconnection with on-board and ground-based interacting equipment and carrying out computational and logical procedures in current real time.

Of the known prototypes ([1] Presnukhin N.L., Nesterov P.V. “Digital Computing Machines”, Moscow, Higher School, 1981, pp. 474-478; [2] E.A. Fedosov “Aviation Air Defense Russian and scientific and technological progress ”, Moscow, Drofa, 2001, section 6.1.6“ Improving on-board computing facilities ”, pp. 533-552; [3] patent RU No. 2287452 C1, December 22, 2005) to the closest is [1], where a digital computer is presented, including a module of a central software module that is interconnected with interacting equipment and with each other through an information-computer exchange channel essora, peripheral processor module, memory device module, input-output module (a complex of hardware computing and logical tools) and, distributed over their programmable parts, a complex of software and algorithmic tools containing software and algorithmic modules of system computing interconnected along the backbone of the computing and logical exchange -logical tools and functional computational-logical tools.

The technical result of the invention is to expand the functionality of the on-board digital computer in terms of ensuring optimal use of hardware resources and adapting the complex of computing and logical means to external and internal circumstances (shutdowns, failures, malfunctions, on-board and ground equipment in standby mode).

This result is achieved in that the on-board digital computer of the control and navigation systems of the aircraft, containing a set of hardware including interconnected with each other and with the interacting on-board and ground equipment via the computer-information exchange channel, the central processor module, peripheral processor module, memory device module , an input-output module and, distributed over their programmable parts, a complex of software and algorithmic tools, including The program-algorithmic modules of system-logic tools and functional computational-logic tools interconnected along the main line of computational-logical exchange are additionally equipped with a program-algorithmic module for adapting and reconfiguring system and functional computational and logical means interconnected along the main lines of computational-logical exchange with software -algorithmic module of system computing and logical means and program-algorithm module of the function local computing and logical means distributed over the programmable parts of the interacting airborne and ground equipment, the central processor module, the peripheral processor module, the memory device module, the input-output module, which are interconnected with the interacting airborne and ground equipment through the computer-information exchange channel form a complex of hardware on-board digital computer systems for control and navigation of aircraft.

The drawing shows a block diagram of an on-board digital computer (BCM), containing: 1 - the module of the central processor MCP, 2 - the programmable part (IF) MCP, 3 - the module of the peripheral processor MPP, 4 - the programmable part (IF) MPP, 5 - module of memory devices MUP, 6 - programmable part (IF) MUP, 7 - input / output module MVV, 8 - programmable part (IF) MVV, 9 - interacting airborne and ground equipment VDO, 10 - programmable part (IF) VDO, 11 - channel of information and computing exchange KIVO, 12 - computational logic highway MVLO exchange (dashed line), 13 - software-algorithmic module (PAM) of system computing and logic tools SVLS, 14 - software and algorithmic module (PAM) of functional computing and logic tools FVLS, 15 - software-algorithm module (PAM) of adaptation and reconfiguration of system and functional computing and logical means of the RSFS.

VDO 9 with the programmable part of the inverter VDO 10 (not included in the inventive device) includes on-board sensors of the state parameters of aircraft units and equipment, information receivers, display, control, recording and playback means, as well as ground-based monitoring, preparation and data input tools (in including programs), periodic and routine inspections.

The interaction of VDO 9 and the VDO 10 VFD with the computer components (including their programmable parts) is carried out according to KIVO 11, which includes various communications, for example, according to GOST 18977-79, GOST 26765.52-82, GOST P50832-95, PCI, VME, STANAG 3350 , MIL-STD-1553V, MIL-STD-1750A, RS-232C, RS 482, RS-449, RS-485.

The hardware complex of the BCMC includes interconnected with each other and with the VDO 9 KIVO 11 BCVM nodes:

- MCP 1 (and its programmable part of the inverter MCP 2), MPP 3 (and its programmable part of the inverter MPP 4) are universal processors that solve arithmetic and logic problems; as a part of a digital computer, both the absence and the presence of several including specialized (for example, graphic), MPP 3 are possible;

- MUP 5 (and its programmable part of the inverter MUP 6) contains various memory devices - random access memory (RAM) with various types of access, long-term non-volatile memory devices (DZU) and other types of memory devices for storing programs and arrays of parameters and data;

- MVV 7 (and its programmable part of the inverter MVV 8) is a programmable controller that runs on a given program, controlled by the commands transmitted according to KIVO 11, processed by the inverter controllers MVV 8 in terms of transferring data, commands and programs to receiving devices VDO 9 and, accordingly, synchronous receiving, converting, transmitting to IF MCP 2, IF MPP 4, IF MUP 6.

The complex of software and algorithmic means of the BCMC ([1], pp. 64-76) includes distributed on programmable parts (FC) of the complex of hardware of the BCMC PAMSVLS 13 and PAMFVLS 14, interconnected by MVLO 12, representing a command system, addressing and control methods of internal and external memory, interrupt system, order of interaction according to KIVO 11.

PAMSVLS 13 provides the overall functioning of the computer based on software and algorithmic components:

- The initial test and initialization of the inverter MCP 2 and maintenance of the real machine and current time;

- synchronized interaction functions IF MCP 2, IF MPP 4, IF MUP 6, IF MVV 8, VDO 10 KIVO 11 in accordance with the interaction order determined by MVLO 12;

- functions of autonomous and test control, interaction with hardware and software of the workplace of the programmer (remote "debugger") and operator input programs;

- functions of priority (turn and order) management of the tasks being solved (including in PAMFVLS 14) in real time;

- functions of internal and external synchronization of input and output information flows in the current real (upon the fact of fixing the issuance of data from the sensors VDO 9) time.

PAMFVLS 14 for control through MVLO 12 from PAMSVLS 13 provides a solution to specific tasks of navigation, indication, target designation, application, signal processing, complex information processing; the set of parameters generated in real time from MVV 7 to KIVO 11 are supplied to VDO 9 for controlling the operating modes of the aircraft and interacting equipment and for performing expert and executive functions for the crews.

The programs PAMSVLS 13, PAMFVLS 14, MVLO 12, PC VDO 10, PAMRSFS 15 are developed, for example, in C.

The MVLO 12 and PAMSWLS 13 programs, introduced into the inverter of the hardware complex from external memory devices, ensure the functioning and operability of the digital computer that can be delivered to consumers. A consumer-developer of algorithms and programs for solving specific problems - control, navigation, indication, processing of data streams, special signals (radar, video) from external, for example, FLASH-memory stores PAMFVLS 14 programs in the inverter of the hardware complex, converting the computer into a specialized computer solving specific problems.

Additionally introduced PAMRSFS 15 in interconnection via MVLO 12 provides control of PAMSVLS 13 and PAMSFLS 14 according to program-algorithmic components:

- tracking and expert evaluation of internal (failures, malfunctions, addressing errors, violation of access rights in the complexes of hardware and software and algorithmic means of the computer) and external (failures, malfunctions, shutdowns, switching to VDO 9 and in the VDO VDO 10) events;

- setting priorities and making decisions (adaptation) for reconfiguration through operational reprogramming of the complex of software and algorithmic means BTsVM - PAMSVLS 13 and PAMFVLS 14 in relation to MVLO 12 distributed across the IF of the complex of hardware of the BTsVM and VDO VDO 10.

PAM RSFS 15 can be implemented as part of PAMSVLS 13.

For example, in case of software failures in the IF MPP 4 or instrumental MPP 3 failure in PAMRSFS 15, an event is evaluated, a decision is made to reconfigure the complex of software and algorithmic tools, a message is generated (a set of commands), which is received by PAMSVLS 13 and PAMFVLS 14, accordingly, the programs are reloaded and the computer is operated with an operatively changed structure of hardware and software-algorithmic tools adapted to the event.

Thus, the concept of open architecture and integration is implemented, which ensures the fulfillment of the tasks of the digital computer, equipment systems and aircraft in exceptional situations.

On the example of technical implementation, the achievement of a technical result is shown - expanding the functionality of the digital computer in terms of ensuring operability by optimally allocating the resources of the hardware and software and algorithmic means of the digital computer for internal and external events that could lead to the disruption of flight tasks of aircraft.

Claims (1)

An on-board digital computer for aircraft control and navigation systems, comprising a hardware complex, including a central processor module, a peripheral processor module, a memory device module and an input-output module, interconnected with each other and with the on-board and ground-based equipment communicating via an information-computer exchange channel, as well as a complex of software and algorithmic tools distributed over their programmable parts, including interconnected along the highway in computational-logical exchange software and algorithmic module of system computing and logic tools and software and algorithmic module of functional computing and logic tools, characterized in that it additionally introduced a software and algorithmic module for adaptation and reconfiguration of system and functional computing and logic tools, interconnected along the highway computational-logical exchange with the program-algorithmic module of system computational-logical means and with the program-algorithm thermal module of functional computing and logical means, distributed across the programmable parts of the interacting airborne and ground equipment, the central processor module, the peripheral processor module, the memory device module and the input-output module, which are interconnected with each other and with the interacting airborne and ground equipment through the computing channel -information exchange form a set of hardware on-board digital computer systems for summer control and navigation Yelnia devices.

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