Multi-objective optimization and evaluation method of multi-level soft reinforcement scheme for single event effect

Abstract

The invention discloses a single-event effect-oriented multi-objective optimization and evaluation method of a multi-level soft reinforcement scheme, including: extracting main features of soft reinforcement at each level of process level, thread level, code level and instruction level, and constructing feature vectors; The eigenvector is used as the multi-objective optimization input parameter to establish a multi-objective optimization model; establish a weight-based multi-dimensional multi-level performance evaluation model to calculate the fitness value of the soft reinforcement scheme in the multi-objective optimization model; judge whether the current optimal soft reinforcement scheme meets the requirements Performance index; if it is not satisfied, perform multi-objective optimization calculation for multi-level soft reinforcement, and further optimize the soft reinforcement scheme until the required soft reinforcement scheme is met. The present invention provides an effective multi-dimensional solution for minimizing soft errors caused by single event effects and reducing failures of embedded computer systems such as spacecraft, satellites, and airplanes, and can improve the reliability and reliability of electronic equipment. safety.

Description

technical field [0001] The invention belongs to the fields of software reliability, multi-objective optimization and embedded software anti-single event effect, in particular to a multi-objective optimization and evaluation method for a multi-level soft reinforcement scheme oriented to single event effect. Background technique [0002] With the increasing integration and frequency of chips, the threat of malignant events caused by the single event effect to aerospace vehicles is becoming more and more serious. For example, in 2017, China's first dark matter detection satellite "Wukong" had a malfunction. It was "blind" for nearly 19 hours at one time, causing heavy losses. The culprit of its malfunction was the single event effect. Research embedded system software anti-single event effect reinforcement technology, adopt fault-tolerant design in software to improve the self-protection ability of the program, reduce soft errors caused by single event effect, reduce aircraft f...

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Problems solved by technology

Since the multi-level soft reinforcement has more parameters, the value range of the parameters is larger, which means that the space-time overhead is very huge

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