Networked control system: state of the art

Networked control systems (NCS) are one type of distributed control systems where serial communication networks is used to exchange system information and control signals between various physical components of the systems that may be physically distributed. The existence of real time network in the feedback control loop makes analysis and design of an NCS complex, and conventional control theories such as synchronized control and non-delayed sensing and actuation must be reevaluated prior to application to networked control systems. Numerous research papers have investigated analysis and design of NCS from different views. This paper aims to introduce state of art NCS and to point out the field of further research.