Studies on the Simulation Optimization of Distribution Center Operations for Cold Chain Logistics Using Petri Nets and AnyLogic

Aiming at the problems of long operation time, low utilization rate of forklift and easy blockage of inbound goods in the operation process of a cold chain logistics distribution center, this paper firstly establishes a Petri net model of the inbound and outbound operation process of cold chain logistics by adopting the Petri net modeling method and verifies the validity of the model by combining with the correlation matrix analysis method. Secondly, based on the Petri net model, AnyLogic software is used to simulate the model and optimize the number of forklift trucks, the arrangement of inbound and outbound warehousing area, and the operation process of warehousing, so as to improve the overall operational efficiency of the system. Finally, in view of the fact that the cold chain logistics distribution center is mainly operated by forklifts, in order to respond to the strategy of carbon peak and carbon neutrality, this paper constructs a carbon emission model about forklifts to measure the changes of carbon emissions of the distribution center after optimization. The results show that the operation time of the cold chain logistics distribution center has been shortened, the utilization rate of forklift trucks has been improved, and the carbon emissions have been reduced.