Abstract
Automatic generation of process operation sequences is considered for batch process systems. Knowledge of process equipments and material processing procedures are represented by directed graphs respectively. Many series of operation sequence are obtained efficiently with these graphs by introducing subgraph isomorphism algorithm. Among the sequences, parallel operations in different equipments in the same time are realized. Operation procedures treating multiple products in parallel are also realized. Moreover, alternative operation sequences in abnormal situation can be generated on-line by dynamically applying this algorithm. Several examples of sequence generation are demonstrated and the performance of the algorithm is studied.
