 SIP allows the identification of welding faults in real time, measures the stability of welding processes, and enables the optimization of welding processes.The idea of using electrical data analyzed by algorithms to assess the quality of the welds produced in robotic manufacturing emerged in 1995 from research by Associate Professor Stephen Simpson at the University of Sydney on the complex physical phenomena that occur in welding arcs.Simpson realized that a way of determining the quality of a weld could be developed without a definitive understanding of those phenomena.