Container yard double-yard-bridge dynamic cooperative scheduling method
A container yard and collaborative scheduling technology, applied in the direction of instruments, calculation models, data processing applications, etc., can solve the problems of insufficient dynamic response, difficulty in meeting double-field bridges, and reduced actual application effects, so as to reduce vehicle waiting time and reduce The effect of double field bridge interference and improving operation efficiency
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Embodiment 1
[0058] Such as Figure 1-4 As shown, the present embodiment provides a method for dynamic collaborative dispatching of double yard bridges in the container yard box area, that is: a dynamic selection method for the next task of the idle yard bridge, and the optimization goal is to minimize the loading and unloading collection trucks (stacking boxes) in the box area. ) The average waiting time of tasks. Basis condition information for optimal scheduling: 1) task information of loading and unloading trucks (stacking boxes) that have been waiting in the container area, including vehicle arrival time, target bay position, and time required for task execution; 2) loading and unloading that is about to arrive in the container area The task information of the collection card (stacking box), including the arrival time of the vehicle, the target bay, and the time required for task execution; 3) the bays where the two yard bridges are located in the current box area.
[0059] Based on ...
Embodiment 2
[0070] According to the operation data of a certain container terminal yard in the north as the background, an experiment of the technical solution of the present invention is designed, and its beneficial effect is analyzed. In the experiment, the arrival of the box area tasks (collectors) obeys the Poisson distribution (the mean is λ), and the stacking time of a single task obeys the uniform distribution on the interval [1.16, 1.64] (unit: min). The experimental parameters are shown in Table 1. Show.
[0071] Table 1 Experimental parameters
[0072] parameter item parameter value Yard length L(bay) 40 Mission arrival rate λ (vehicle / min) 0.3、0.5、0.7、0.75、0.8、0.85 Longitudinal movement speed of field bridge v(bay / min) 10 Average task loading and unloading time μ(min) 1.4
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