针对目前护航海军普遍使用的伴随护航策略存在的效率较低及时间难以协调等问题，采用区域护航的理念，建立了基于重点区域覆盖的海军护航位置选择模型，该模型分为海盗选择及劫持模型，商船求救及海军救援模型，海军护航位置选择模型等3个子模型，对模型得到的海盗劫持高危水域进行重点区域部署，提高护航海军的护航效率。为了快速有效地求解该模型，综合运用遗传算法和贪心算法，提出一种改进的求解算法，使得计算结果更加符合实际需求。案例计算结果表明，该模型和算法能够为海军选择合理的区域护航位置，使得海军护航工作更加高效稳定。%Taking aim at the efficiency problem existing in the adjoint escorting strategy employed by the navy, this paper adopts the concept of regional escort. A selection model of the escorting position is established based on the major covering location theory. The model is divided into pirates hijacking model, merchant ships distress and navy rescue model, the selection of escorting position model. The high-risk waters deployed in major areas are subjected to improve efficiency of escort naval escort. To solve the model quickly and effectively, a modified algorithm, combining genetic algorithms and greedy algorithms, is proposed, which makes the result more realistic. The calculation result of the case indicates that the proposed model and algorithm can select reasonable escort position for the navy, which makes the escort more efficient and stable.
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