Isomerous triple modular redundancy fault-tolerant method based on LUT (Look-up Table) evolvable hardware

An evolutionary hardware and redundant fault-tolerant technology, which is applied in the direction of hardware redundancy for data error detection and response error generation, can solve the problems of lack of systematic research and the establishment of EHW fault-tolerant system, and achieve good reliability. Scalability, rich diversity, and the effect of reducing false correlation

Inactive Publication Date: 2011-07-27
WUHAN UNIV
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Problems solved by technology

[0007] In general, the current research on fault-tolerant methods based on EHW is still in its infancy, and it is all about some basic models o

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  • Isomerous triple modular redundancy fault-tolerant method based on LUT (Look-up Table) evolvable hardware
  • Isomerous triple modular redundancy fault-tolerant method based on LUT (Look-up Table) evolvable hardware
  • Isomerous triple modular redundancy fault-tolerant method based on LUT (Look-up Table) evolvable hardware

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Embodiment Construction

[0067] The three-mode heterogeneous redundant fault-tolerant method based on LUT level evolution hardware provided by the present invention comprises the following steps:

[0068] 1. Realize three-mode heterogeneous redundant fault-tolerant IP core on FPGA;

[0069] The three-mode heterogeneous redundant fault-tolerant IP core includes three bases for constructing the target circuit, that is, the virtual reconfigurable circuit; the voting circuit, the error detection circuit and the RAM storing the truth table of the target circuit.

[0070] First of all, the basis of the entire IP core is the basic logic unit, which is implemented based on a LUT (Look-Up-Table, look-up table) and consists of multiple multiplexers and a LUT. LUT is essentially a RAM. Its principle is that after writing data into RAM in advance, whenever a signal is input, it is equivalent to inputting an address to look up the table, find out the content corresponding to the address, and then output it. Each ...

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Abstract

The invention relates to the technical field of evolvable hardware and fault tolerance, especially to an isomerous triple modular redundancy fault-tolerant method based on LUT (Look-up Table) evolvable hardware. In the invention, basic logic units implemented based on LUT are constructed and constitute a virtual reconfigurable circuit; a software/hardware cooperative genetic algorithm is used forautomatically searching for three configuration strings meeting conditions; data is continuously input to three target circuits through an excitation signal generated inside hardware so that an isomerous triple modular redundancy module is under the state of running inside hardware; and some faults are input to the virtual reconfigurable circuit in an analog manner in the form of key interruptionin order to observe fault detection, fault tolerance and self-repairing procedure of the system. The method provided by the invention has excellent expandability, and can enrich the diversity of the target circuit and improve the fault-tolerant capability of the entire redundancy fault-tolerant system.

Description

technical field [0001] The invention relates to the technical field of evolution hardware and fault tolerance, in particular to a three-mode heterogeneous redundancy fault tolerance method based on LUT-level evolution hardware. Background technique [0002] Evolvable Hardware (EHW) is a special hardware system that can change its structure or function according to environmental changes to adapt to the environment. Evolutionary algorithms and programmable devices provide theoretical support and material basis for it respectively. It is a biological , computer science and electronic engineering technology combined new interdisciplinary research field. Evolutionary hardware has shown great development potential in the fields of circuit design, pattern recognition, evolutionary robotics, adaptive control, fault-tolerant self-repair, and space technology, and has aroused the research interest of governments and scholars worldwide. [0003] There are two views on evolutionary har...

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Application Information

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IPC IPC(8): G06F11/16
Inventor 李元香聂鑫王峰刘罡雷新
Owner WUHAN UNIV
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