| With the development of economy and improvement of people ’s living standard,comsumer demand for products and services from quality and quantity to personalization.To meet the personalized needs of consumers,it appear many varieties of small batch production mode.The characteristics of this mode is small batch and product variety and the complicated process.So it bring some difficult and risk to enterprise,for example difficult to control the delivery period and inventory.From the perspective of management science,production process modeling can accurately determine supply material for the production cycle and the arrival time and completion time of each complete set of product.So,enterprise can control the delivery per iod and inventory through production process modeling.This anticle research the methods of production process modeling.And it can help enterprise improve the economic benefit.At fist,it research the Petri net of basic properties and method of analysis and modeling advantage.And it reaearch the significance of time parameters and coloring parameters and the object-oriented technology to Petri net.Second,it reseach the characteristics and production mode and the relationship of many varieties and small batch production mode.And it conclusion the production process of many varieties of small batch production enterprises.For comlex production process,it put forward the method of based on the object-oriented coloring time Petri net modeling(OOCTPN).It introduce the formal definition and graphical definition of OOCTPN.And it analysis the building modeling and advantage of OOCTPN.The last,it set up the OOCTPN modeling of the production process in harbin electric.With the aid of Petri nets analysis method and Exspect software platform,it prove the accuracy and stability of model.And proving the OOCTPN modeling method is effective in the production process field of many varieties and small batch production enterprises. |
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