This book focuses on the fault diagnosis observer design for the
switched system. Model-based fault diagnosis and fault tolerant control
are one of the most popular research directions in recent decades. It
contains eight chapters. Every chapter is independent in the method of
observer design, but all chapters are around the same topic. Besides, in
each chapter, the model description and theoretical results are firstly
provided, then some practical application examples are illustrated to
prove the obtained results. The advanced theoretical methodologies will
benefit researchers or engineers in the area of safety engineering and
the arrangement of the structure will help the readers to understand the
content easily.