Multi-category Fresh Agricultural Products Are Matched Joint Optimization of Load and Distribution

Abstract

The core of the VRP problem is the process of distribution from the distribution center through multi-demand points under the condition of considering a variety of factors, and the VFP problem, as the precursor to the VRP problem, is that the distribution center carries out reasonable loading and loading according to the needs of multiple demand points. Both are important research topics in the logistics industry. The two influence and restrict each other in the distribution link, and are an indispensable part of the distribution link. This paper combines the two to study the joint optimization problem of VRP problem and VFP problem of urban logistics distribution, which is conducive to the effective integration of logistics and transportation resources. In this study, multi-category fresh agricultural products are taken as the research object, and the joint optimization of three-dimensional loading and distribution routes of multi-category fresh agricultural products at multiple task demand points in a distribution center is studied. In the process of joint optimization, the fragile characteristics of some products and the different sizes of each product feature are considered, and a three-dimensional loading-distribution route joint optimization model is established. In the process of joint optimization of stowage and distribution, the fragile characteristics of some products and the different sizes of each product feature are considered, and a three-dimensional joint optimization model of stowage and distribution route is established. The multi-objective problem with the largest load rate and the smallest mileage is converted into a single-objective function with the lowest cost; Secondly, the application of GA-TS hybrid algorithm to joint optimization is proposed. Finally, a study simulation is performed. The distribution scheme and loading scheme affect the size of the loading rate and the number of miles delivered. Distribution centers have found that proper stacking can effectively ensure vehicle load rates while reducing operating costs.