Dynamic Production Scheduling and Control Based on MAS and System Development
The hierarchical architecture of agile manufacturing oriented production scheduling and control based on MAS is put forward. 1) Taking task decomposition and assignment level as the crux of the matter, cooperative decision-making and collaboration mechanism is constituted; 2) Negotiatory bidding approach is used to decompose and distribute tasks; 3) The effective integration of task distribution and control is realized by adopting the method that combines capability matching with dynamic task scheduling; 4) The granularity of agents and construction of MAS are dynamically determined according to production requirements; 5) Dynamic task reconfiguration can be carried out to be seasoned with the internal and external changes of manufacturing system. Then, its autonomous organization and function mode are discussed that combine hierarchical control with concurrent operation. Finally, Hierarchical blackboard configuration corresponding to the MAS organization is used to realize information and data communication among various agents. Based on the infrastructure constructed to support dynamic scheduling and control of production process, a MAS based dynamic scheduling and control system is developed in Shaanxi Qinchuan Machinery Development Corporation Limited.