Box position distribution and field bridge scheduling method

Abstract

The invention provides a box position distribution and field bridge scheduling method, which divides a decision period into P sub-periods, simulates a real-time arrival process of an exit box, and distributes a box position for the exit box arriving at the field in each sub-period. The optimization process comprises the following three steps: (1) for a certain sub-time period, constructing a modelto obtain a first-level optimization scheme of container position distribution and field bridge scheduling by taking the shortest total time of finishing the stockpiling operation of the arrival exitboxes in the time period and the shipment operation of all the arrival exit boxes after the time period is ended as a target; (2) on the basis of the first-level optimization scheme, with the shortest total time for completing pre-turnover operation and stockpiling operation by the field bridge as a target, constructing a model to obtain a second-level optimization scheme for pre-turnover and field bridge scheduling; (3) if the secondary optimization scheme enables the total operation time of the exit box entry and exit operation system to be the shortest, optimizing the next sub-time period;otherwise, repeating the step (2). According to the method, outlet box stockpiling operation optimization and shipment operation optimization are considered at the same time, and the provided container position distribution and yard bridge scheduling scheme can optimize the overall operation efficiency of the outlet box yard.

Description

technical field [0001] The invention relates to the field of space resource allocation and yard bridge scheduling optimization of container terminal yards, in particular to a method for container space allocation and yard bridge scheduling that simultaneously considers the entry and exit of export containers and pre-turning containers. Background technique [0002] At present, the optimization of export container storage operations and optimization of shipping operations are both regarded as independent studies. In the process of export container operation optimization in export container yards, for the same batch of export containers, there is a lack of optimization of both the storage operation process and optimization. Research on its loading operation process. At the same time, the research on the uncertainty of the exit box arrival sequence lacks universality. At present, the solutions to this difficult problem include random, prediction, appointment, etc., but these s...

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Problems solved by technology

[0002] At present, the optimization of export container storage operations and optimization of shipping operations are both regarded as independent studies. In the process of export container operation optimization in export container yards, for the same batch of export containers, there is a lack of optimization of both the storage operation process and optimization. Research on its loading operation process

At the same time, the research on the uncertainty of the exit box arrival sequence lacks universality

At present, the solutions to this difficult problem include random, prediction, appointment, etc., but these solutions have specific applicable scenarios, and there are certain differences from actual operations.

In addition, the problem of pre-tumbling is separated from the problem of flipping

Although there are many studies on the problem of turning over and pre-turning boxes in the existing research, there is a lack of research on how to balance the amount of turning over boxes and the amount of pre-turning boxes so that the total time of the yard operation system is the shortest.

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