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基于状态节点网络的龙门吊路径优化问题研究 被引量:3
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作者 陈雷雷 乐美龙 黄有方 《运筹与管理》 CSSCI CSCD 北大核心 2016年第5期82-87,共6页
为提升集装箱堆场的作业效率和服务水平,研究了集装箱堆场龙门吊的作业路径问题。将龙门吊的作业任务划分为阶段任务和阶段内子任务后,通过定义状态、状态值以及状态间距,提出了基于状态节点网络的龙门吊路径优化模型。并针对模型的特点... 为提升集装箱堆场的作业效率和服务水平,研究了集装箱堆场龙门吊的作业路径问题。将龙门吊的作业任务划分为阶段任务和阶段内子任务后,通过定义状态、状态值以及状态间距,提出了基于状态节点网络的龙门吊路径优化模型。并针对模型的特点,设计求解算法,算法由递归算法生成状态节点空间,用整数编码的遗传算法进行状态组合寻优。最后,以某集装箱码头实际作业数据为基础,进行了模型和算法的验证计算,结果显示基于状态节点网络的路径优化方法有效地减少了龙门吊的作业移动距离。 展开更多
关键词 交通运输 作业路径优化 状态节点网络 龙门吊
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Node scattering manipulation based on trajectory model in wireless sensor network 被引量:2
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作者 裴智强 徐昌庆 藤劲 《Journal of Central South University》 SCIE EI CAS 2010年第5期991-999,共9页
To deploy sensor nodes over the area of interest,a scheme,named node scattering manipulation,was proposed.It adopted the following method:during node scattering,the initial states of every node,including the velocity ... To deploy sensor nodes over the area of interest,a scheme,named node scattering manipulation,was proposed.It adopted the following method:during node scattering,the initial states of every node,including the velocity and direction,were manipulated so that it would land in a region with a certain probability;every sensor was relocated in order to improve the coverage and connectivity.Simultaneously,to easily analyze the process of scattering sensors,a trajectory model was also proposed.Integrating node scattering manipulation with trajectory model,the node deployment in wireless sensor network was thoroughly renovated,that is,this scheme can scatter sensors.In practice,the scheme was operable compared with the previous achievements.The simulation results demonstrate the superiority and feasibility of the scheme,and also show that the energy consumption for sensors relocation is reduced. 展开更多
关键词 WORK node scattering manipulation trajectory model energy consumption
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