Configuration Problems, Based On The Witness Ship Scheduling And Port Resources

Since entering 21st centuries, along with the technical progress of economic fast development in world and modern sciences, as a newly arisen service department of the national economy, the logistics industry just develop quickly within the scope of global. In recent years, the logistics is in social economy development of position become more and more important, and cause the extensive concern of people gradually, with the result that the comprehensive development level of the country logistics becomes one of judging marking that it is national to synthesize the real strength.With the step of China's entry of the WTO and global economic integral trending, how to establish and develop the logistics service system effectively according to the actual status of our country, have become a focus that government and business enterprises will pay more attention to in our country increasingly. In order to carry out this target, Logistics industry need realize high logistics activity efficiency and low total social logistics costs through optimizing combination and improving deployment of various logistics factors.As a main part in integrated transportation chain, port changes into port logistics rapidly. Since ports offer least gaps and maximal increment as logistics nodes, they are playing more important role in transportation and trading system. Meanwhile, through many years development, the function of port became more perfect. Now it become a international logistic center which offers manufacture, customs bond, finance, trade, information services instead of supplying transportation, loading and storage service simply long ago. How to combine the various functions effectively, the communicate information between supplies and demander in time, the activate port resources and satisfy demander's severe and individualized need is the key factor to port development. Fortunately, logistical management is the right measure to optimize the port resources and improve operating efficiency.This dissertation reviews the related concept of the logistics system and the port logistics first, and then combines the characteristics and the port present conditions of the port, dispense the existent problem for its resources, and put forward the virtual port logistics link. Because shipping operation of the quay is discrete, stochastic and dynamic, so we can use the function of the witness software to build up virtual model and carrying out analysis. At same time, we can make use of an OPTIMIZER of thecalculate way mold to get superior configure for the system and carry out the port logistics system in a few important nodes: ships, the port wharf and its stock warehouses growing according to the conveyance goods kinds and proportions to compare and gets, the quite the optimal dispensation.