Real-time supervisory, scheduling and control for brief-flow product line made up from electric steeling, fine steeling and continuous casting

Brief-flow product line made up from electric steeling, fine steeling and continuous casting is A representative complex industrial process which can be described by a new hybrid model named as time-varied process/transition Petri net. In this model,the running signs (discrete marks or logic variables) and remanent times (continuous marks or timed variables) of working-place or working-status processes are introduced to solve effectively such problems as the integrated modeling of complex industrial process, the coupling between discrete events and continuous states, the joining between sub-process and product control, the real-time supervisory control of discrete events, the real-time scheduling and control of continuous sub-processes.