The optimization of the workflow in low-temperature distribution center based on Petri Net

The optimization of the low-temperature distribution center process can not only reduce the risk of products deterioration in circulation, but also lower the energy consumption and environmental pollution during the running of low-temperature distribution center. The paper firstly introduces the major process of low-temperature distribution center, and establishes the Petri Net of low-temperature distribution center based on the overall flow chart. Next, the paper decomposes the overall process into independent and purposive flow units, builds corresponding incidence matrix, and analyzes the relationship between different flow units through Petri Net. Then, we find out the flow units where “conflict” and “synchronous” coexisting, the paper analyzes the key flow units that influence the efficiency of overall flow and proposes optimization scheme for key units. Finally, the paper uses Visual Object Net++ software's built-in simulation function to calculate two Petri Net before and after optimization, quantifies optimized result.