Combining On-Line-Test and Self-Repair for Highly Dependable Processor-based Nano-Electronic Systems

德国和欧洲的工业(汽车、航空电子、交通运输、工业自动化)需要基于处理器的系统来执行各种应用。基于处理器的系统和正在运行的应用程序必须提供高可靠性和长期可靠性。不幸的是，这些特性不一定是由基于纳米电子处理器的系统本身提供的。因此，这样的系统必须配备实时在线故障检测和处理以及用于更换缺陷部件的自我修复机制。基于硬件的在线容错机制和基于软件的离线自修复技术相结合是显而易见的，但据我们所知，到目前为止还没有针对基于处理器的系统进行系统的探索。我们项目的目标是在基于处理器的系统中将这两种技术结合在一起，以便将冗余方面的额外开销限制在最小，并且该技术的应用变得经济。

The German and European industry (automotive, avionic, traffic and transportation, industrial automation) needs processor-based systems for executing various applications. The processor-based system together with the running application must provide high reliability and long-term dependability. Unfortunately, these properties are not necessarily provided by nano-electronic processor based systems themselves. Therefore, such systems must be equipped with mechanisms for real-time on-line fault detection and handling as well as for self-repair for replacing defect components. The combination of hardware-based on-line fault tolerance mechanisms with software-based off-line self-repair techniques is obvious, but, to our best knowledge, not systematically explored for processor-based systems up to now. The goal of our project is to combine both techniques together in a processor-based system, such that the additional overhead in terms of redundancy is limited to a minimum, and the application of this technique becomes economical.