论文标题
无人驾驶飞机的路线:巡回式尺寸套装
Routing for unmanned aerial vehicles: touring dimensional sets
论文作者
论文摘要
在本文中,我们处理了穿越邮递员问题的扩展,以设计汉密尔顿路线,这些路线必须访问不同形状的尺寸元素(邻域或多边形链)而不是边缘。此问题模型的无人机路由必须访问许多地理元素以提供一些商品或服务,然后使用直线位移直接移动到下一个目标元素。我们介绍了两个数学编程公式的家族。第一个是与时间有关的,并以三个索引变量的价格捕获了许多实际应用程序的实际特征。第二个未参考路线的阶段。我们将它们在具有不同形状的元素形状的随机生成实例的测试床上进行比较:二阶锥形(SOC)和多面体邻域以及多边形链。本文报道的计算结果表明,我们的模型很有用,可以解决类似于社区其他组合问题的最佳中等大小实例。为了解决较大的实例,我们还提出了一种启发式算法,该算法分为两个阶段:聚类和VNS。该算法在提供的解决方案的质量方面表现出色,可用于以有希望的初始解决方案初始化确切的方法。
In this paper we deal with an extension of the crossing postman problem to design Hamiltonian routes that have to visit different shapes of dimensional elements (neighborhoods or polygonal chains) rather than edges. This problem models routes of drones that must visit a number of geographical elements to deliver some good or service and then move directly to the next target element using straight line displacements. We present two families of mathematical programming formulations. The first one is time-dependent and captures a number of actual characteristics of real applications at the price of using three indexes variables. The second one are not referenced to the stages of the route. We compare them on a testbed of randomly generated instances with different shapes of elements: second order cone representable (SOC) and polyhedral neighborhoods and polygonal chains. The computational result reported in this paper show that our models are useful and can solve to optimality medium size instances of sizes similar to other combinatorial problems with neighborhoods. To address larger instances we also present a heuristic algorithm that runs in two phases: clustering and VNS. This algorithm performs very well in quality of solutions provided and can be used to initialize the exact methods with promising initial solutions.