A signal-driven based flexible integrated scheduling algorithm with bidirectional coordination mechanism

Due to the excessive reliance on short-time strategy to weaken the flexibility of equipment, ignore the dual selection relationship between equipment and operations, and ignore the flexibility of the independent operations in the products of tree-like structure in the existing algorithms to solve the flexible integrated scheduling problem, the framework of the flexible integrated scheduling system with three management subsystems is designed. Moreover, the signal-driven based flexible integrated scheduling algorithm with bidirectional coordination mechanism is proposed by simulating the information interaction between the subsystems and the resources. In the proposed algorithm, the bidirectional coordination mechanism is established to coordinate the selection between equipment and operations. Thus, the impact of equipment and operations on each other is fully considered and avoids the problem of focusing too much on one side. The bidirectional scheduling strategy is adopted to eliminate the impact of the scheduling direction of the process tree on the product. Furthermore, the equipment-operation coordination strategy based on grey relational analysis is designed to integrate the impact of the processing time, the relative path, and other factors on the dispatching of machines and operations. Then the optimal combination is adopted to solve the conflict between machines and operations. Finally, the comparison results show that the proposed algorithm has better performance than the other comparison algorithms on the flexible integrated scheduling problem.