Optimal Research Of Yunfu New Port Business Process Based On Petri Net

Port is playing an important role in cargo distribution and trade. In recent years, with the fast and steady growth of our country economy and the rapid development of international trade, the competition among the port enterprises is becoming fierce. At the same time, the growing business of port has brought port operation efficiency with enormous pressure. In order to improve the operation efficiency and competition ability of port, the port is becoming more important in business process management. How to speed up the cargo circulation has become a crucial issue for the enhancement of the port enterprises competitive potency. Therefore, it's of vital importance to analyze and optimize the business process of port enterprises.Business process modeling analysis is the foundation and prerequisite of business process optimization, which is also the hotspot of process optimal research in recent years. At present, there are many kinds of methods applied to model materials flow process. But among them, Petri Net is a very effective method because that it has strict mathematical definition and analysis methodology. Petri net is a workflow analyzing tool with graphical and mathematical features. It can express the workflow model clearly and can be seen as the business process chart. In order to analyze Petri net, we can use the methods of incidence matrix, algebraic equations and so on. Through the analysis, one the hand, Petri net can correctly reflect the characteristics of the existing system; on the other hand, Petri net can detect potential problems in the new system and ensure that the new system is able to correctly realize. Then, based on Petri net, we reform the business process to optimize.This paper firstly introduces the basic knowledge and theory of Petri net and analyzes the present situation of the business process of the Yunfu New Port and the existence question. According to the Petri net basic knowledge and theory, this paper builds a model for the business process based on Petri net, analyzes the behavior characteristics of the model by using mathematical method. Based on that, this paper gets the each sub sets and finds out the synchronal relationships between each sub sets by using the Composite Change Matrix analysis methodology. So the key nodes that affect the effectiveness of the process can be detected. On the basis of this, this paper presents several optimization measures. By doing this, the optimized Petri net can be produced. Then, in order to evaluate and verify the effect of process optimization, this paper draws in time changes in the original Petri net and Arena simulation software, constructing a MC through stochastic Petri net .We find a way to solve the insufficiency and unnecessary processes by using MC. then we get the utilization rate, the average mark, the average delay time as the basis for the evaluation process. Compare to process parameters and the simulation results, this papet can verify the effect of process optimization.Finally, on the base of summarizing the dissertation, this paper points out some problems can be further studied.