WQ Company Modeling And Analysis Of Production Process Based On Petri Net

Due to the continuous development of chilled dairy products in recent years,such as low-temperature yogurt and low-temperature lactic acid bacteria,the market competition of small and medium-sized enterprises of chilled dairy products is becoming increasingly fierce.In order to grasp the market in this transformation,it must be from the original The production model and delivery method are transformed into a more customized and just-in-time production model.A considerable number of production problems were slowly exposed during this transition.In the process of learning Petri net modeling theory,it is found that the Petri net itself has the intuitiveness of graphical discussion,the expression of the model as a whole and the model process is very strong,and the state change logic of the library and transition elements is very clear and very clear.Suitable for describing and optimizing process state changes.The research content of this paper is as follows:(1)Based on the relevant theoretical knowledge of Petri nets,this paper elaborates on the definition of Petri nets and the application of the related method theory to the WQ company(hereinafter collectively referred to as WQ)production process,the accessibility,activity and boundedness of the Petri net model.Analysis of basic characteristics such as sex and qualitative analysis methods for the above basic properties.(2)The WQ yogurt production process is divided into a blending process and a filling process to decompose the production process steps.Based on the Petri net modeling theory,the optimal buttermilk blending process and the filling process Petri net model are established(3)Using the correlation matrix to analyze the properties of the established yogurt milk blending process model,there are two conflicts in the optimal buttermilk blending model and two places can be paralleled.The two processes are analyzed and optimized to establish a new blending process model.And verified the rationality of the optimization.Using the correlation matrix to analyze the properties of the established yogurt milk blending process model,there are two conflicts in the optimal buttermilk blending model and two places can be paralleled.The two processes are analyzed and optimized to establish a new blending process model.And verified the rationality of the optimization.(4)Modeling and analyzing the WQ yogurt filling process,through the correlation matrix,it is found that there are locks and conflicts in the model,that is,the inconsistency between the filling liquid and the empty bottle reaching the filling machine in the actual filling process leads to the inability of the process.Sufficient resources and downtime,as well as shortage of packaging materials on the packaging line,analyze and optimize the above problems...