Safety oriented software engineering process for autonomous robots

In this paper, a safety oriented model based software engineering process for autonomous robots is proposed. Herein, the main focus is on the modeling of the safety case based on the standard ISO/DIS 13482. Combined with a safe multilayer robot software architecture it allows to trace the safety requirements and to model safety relevant properties on the early design stages in order to build a reliable chain of evidence. The introduced engineering processes consist of the Domain Engineering, which is dealing with the development of a set of interlinked formalized safety cases and software components. Finally, the proposed engineering process is demonstrated on the example of the assembly assistant robot and ROS (Robot Operating System).