A Safety Certification Strategy for IEC-61508 Compliant Industrial Mixed-Criticality Systems Based on Multicore Partitioning

The development of mixed-criticality systems that integrate applications of different criticality levels (safety, security, real-time and non real-time) can provide multiple benefits such as product cost-size-weight reduction, reliability increase and scalability. However, the integration of applications with different criticality levels leads to several challenges with respect to safety certification standards. This paper defines a safety certification strategy for IEC-61508 compliant industrial mixed-criticality systems based on multicore partitioning. This approach is illustrated with a safety concept of a simplified IEC-61508 compliant wind-turbine mixed-criticality system, reviewed and approved by a certification authority.