Research on evolution mechanism in different-structure module redundancy fault-tolerant system

Abstract

With the dramatic increase of circuit scale and the harsh environment, the reliability of the system has become the great hidden danger. Triple differentstructure modular redundant system based on evolution mechanism shows good fault tolerant ability. How to enhance the efficiency and diversity of the evolution generation module has become the key issue which can ensure the system fault tolerant. This article puts forward two-stage mutation evolution strategy (TMES) and interactive two-stage mutation evolution strategy (ITMES) based on improving virtual reconfigurable architecture platform to evolve combination logical circuit on the fault-tolerant system with different-structure redundancy module. The efficiency of the proposed methodology is tested with the evolutions of a 2-bit multipliers, and a 3-bit multipliers, and a 3-bit full adders. The obtained results demonstrate the effectiveness of the scheme on generation circuit diversity and evolution efficiency.