Fault-Tolerant Embedded Systems: Reliable Operation in Harsh Environments Approaches

Abstract

Embedded systems are playing an increasingly important role in delivering critical applications across industries ranging from aerospace and defense to 
telecommunications to healthcare. These systems operate in harsh environ
ments where failure carry severe consequences. Consequently, fault toler
ance has become a critical necessity for embedded systems to guarantee un
interrupted and steady operation under both hardware and software faults. 
In this paper, we discuss different approaches and techniques to improve 
the reliability and availability of fault tolerant embedded systems working 
under hard operational conditions. In the following, we will study the basics 
of fault tolerance, look at different fault tolerant architectures and discuss 
the approaches of building robust embedded systems that can bear failures 
and work properly.