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

Abstract

The invention discloses a multi-objective optimization and evaluation method for a multi-level soft reinforcement scheme facing a single event effect, which comprises the following steps of: extracting main features of soft reinforcement at each level of process level, thread level, code level and instruction level, and constructing feature vectors; taking the feature vectors as multi-objective optimization input parameters, and establishing a multi-objective optimization model; establishing a weight-based multi-dimensional multi-level efficiency evaluation model to calculate an adaptive value of a soft reinforcement scheme in the multi-objective optimization model; judging whether the current optimal soft reinforcement scheme meets the required efficiency index or not; and if not, performing multi-objective optimization calculation oriented to multi-level soft reinforcement, and further optimizing the soft reinforcement scheme until the required soft reinforcement scheme is met. According to the method, an effective multi-dimensional solution is provided for reducing soft errors caused by the single event effect to the maximum extent and reducing faults of embedded computer systems such as spacecrafts, satellites and airplanes, and the reliability and safety of electronic equipment can be improved.

Description

technical field [0001] The invention belongs to the field of software reliability, multi-objective optimization, and embedded software anti-single event effect, in particular to a multi-level soft reinforcement scheme multi-objective optimization and evaluation method oriented to single event effect. Background technique [0002] As chip integration and main frequency become higher and higher, the threat of vicious events caused by single event effects to aerospace vehicles is becoming more and more serious. For example, in 2017, China's first dark matter detection satellite "Wukong" broke down and was "blind" for nearly 19 hours at one time, causing heavy losses. The culprit of its failure 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, which is helpful for reducing soft errors caused by single event effect, reducin...

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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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