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Non-similar 2*2 redundancy high-lift-force computer system

A computer system, a dissimilar technology, applied in general-purpose stored-program computers, architectures with a single central processing unit, etc., can solve problems such as the inability to effectively eliminate common mode faults, achieve high reliability, eliminate common mode faults, safety Good results

Inactive Publication Date: 2017-07-04
QINGAN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing 2×2 redundancy high-lift computer system adopts similar designs between different redundancy levels, which cannot effectively eliminate common mode faults in the development process

Method used

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  • Non-similar 2*2 redundancy high-lift-force computer system

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Embodiment Construction

[0009] Such as figure 1 As shown, it consists of two computers: computer 1 and computer 2, or two channels: channel 1 and channel 2. The two computers (or two channels) have exactly the same composition and functions, and control different drive channels of the same control object. .

[0010] The two channels (or two branches) inside each computer use the processor (DSP / PowerPC) + programmable logic device (FPGA / CPLD) as the core control unit, and the processor and the programmable logic device use different manufacturers and different series 1. Hardware chips with different architectures; different programming languages ​​are used for development; different compilers are used for compilation; the development team uses different personnel teams to design back-to-back, which can eliminate common mode faults to the greatest extent and ensure the safety of high-lift computers. Require.

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PUM

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Abstract

The invention belongs to a machine-mounted redundancy control technology and specifically relates to a non-similar 2*2 redundancy high-lift-force computer system. In a current 2*2 redundancy high-lift-force computer system, similar design is adopted to different redundancies, and a common mode fault during development cannot be eliminated effectively. The computer system disclosed by the invention is used to control slats and flaps during taking-off and landing of a plane and comprises a computer I and a computer II, wherein the two computers have the same composition and functions; each computer controls different objects by different drive channels; two control channels are disposed inside; and each control channel adopts a form of DSP-FPGA combination or a form of PowerPC-CPLD combination. The system can be applied to high-lift-force systems of various planes, can be further applied to systems with high safety requirements such as a flight control system; reliability and safety are high; and the system can satisfy requirements of FAR / CCAR-25-1309.

Description

technical field [0001] The invention belongs to the airborne redundancy control technology, in particular to a non-similar 2×2 redundancy high-lift computer system. Background technique [0002] The existing 2×2 redundancy high-lift computer system adopts similar design among different redundancy levels, which cannot effectively eliminate common mode faults in the development process. Contents of the invention [0003] The non-similar 2×2 redundancy high-lift computer system involved in the present invention adopts a non-similar design between different redundancy levels, which effectively eliminates common mode faults in the development process, and belongs to technological innovation. [0004] The non-similar 2×2 redundant high-lift computer system of the present invention is used to control slats and flaps when the aircraft takes off and lands, and includes computer I and computer II, both of which have the same composition and function, and each of them Each computer ...

Claims

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Application Information

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IPC IPC(8): G06F15/78
Inventor 郭宏选阮涛
Owner QINGAN GRP
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