The Research On Container Trucks Dispatching Of NS Terminal

This paper discusses the advantages and disadvantages of the traditional container truckdispatching mode, analysis the progressiveness and limitation of NS port several existingintelligent container truck dispatching modes, put forward a intelligent container truckdispatching method based on GPS technology and fuzzy control theory that takes the truckdriving distance and task importance of two aspects into consideration.Then the paper puts forward the fuzzy control system of container truck scheduling, anddescribes in detail the system’s overall design, algorithm, fuzzification and defuzzificarion.Subordinate function and The fuzzy rule base by expertexperience method. issuanceof the questionnaire to terminal staff who has the rich experience of truck dispatching,let itfill about each domain value for each fuzzy set the degree of compliance with the languagedescription, synthesis of all personnel asked opinion discrete points of the membershipfunction, then get the approximate subordinate function. Then establish the fuzzy controlsystem in Matlab, Calculate the clear output corresponding to each pair of input values,obtained the decision query table of dispatching plan. In the actual work, in terminalmanagement system to directly query this table can dispatch the optimal plan for containertruck.Finally, using Arena to establish two models for the traditional scheduling mode andfuzzy control dispatching mode, and detailed comparative analysis at two aspects of the truckresources saturated and unsaturated, Found that when the truck resources over saturated, theoperation efficiency of two dispatching modes differ not quite, but to achieve the samenumberof operating efficiency, fuzzy control dispatching system can use15%less than atraditional dispatch of the truck resources; when the truck resource is notsaturated, fuzzycontrol dispatching system can improve the operation efficiency of10%~30%. Thisconclusion prove that the fuzzy control system can effectively improve the dispatching ofcontainer terminal loading and unloading efficiency, also it can increase the full-load ratio ofthe trucks, reduce cost, reduce the energy consumption per teu of trucks.