一种用于星载系统可靠性评测的软件故障注入工具

随着计算机应用的日益广泛和复杂,很多传统的故障注入技术及工具已经在很多领域面临着新的挑战.本文详细介绍了由本课题组自主研究开发的一种用于评测星载系统可靠性的软件故障注入工具(SFIOS),该故障注入工具针对星载系统这一特殊对象而开发,采用包括时间、空间、事件在内的多种故障触发方式,不仅能通过软件的方式随时随地注入接近实际的星载故障,而且操作简单,不需要修改星载系统的应用任务,对星载系统影响较小。实验结果表明,采用该故障注入工具评测星载系统可靠性的具有较多的优点和潜力。

A Software Fault Injection Tool for Evaluation of the Dependability of Onboard System

With the applications of computers being more wide,many traditional fault injection techniques and tools are confronted with new challenges in some of new fields.In this paper,a new software implemented fault injection tool SFIOS,which aims at evaluation of the dependability of onboard system developed by our research group is introduced.This is an easy use tool when,location and event are adopted as fault trigger conditions.Using this tool,not only faults close to the realistic environment onboard system runs can be easily emulated,but no modification to the onboard application tasks is needed.It has minimum interference with tasks running on the onboard system.Experimental results show there are many advantages and potential using the fault injection tool to evaluate the dependability of onboard system.