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考虑负载量均衡的自动拣货系统AGV任务分配优化
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作者 田帅辉 沈亦凡 +1 位作者 欧丽英 樊略 《计算机应用研究》 CSCD 北大核心 2024年第8期2366-2373,共8页
为提高AGV自动拣货系统作业效率、降低作业成本,在剖析造成系统拥堵的关键影响因素基础上,提出考虑负载量均衡的AGV任务分配双层规划模型,上层考虑总成本最小,下层通过构建多目标函数来最小化系统负载量标准差和AGV空闲率。针对传统GA... 为提高AGV自动拣货系统作业效率、降低作业成本,在剖析造成系统拥堵的关键影响因素基础上,提出考虑负载量均衡的AGV任务分配双层规划模型,上层考虑总成本最小,下层通过构建多目标函数来最小化系统负载量标准差和AGV空闲率。针对传统GA求解任务分配问题效率低、易陷入局部最优等问题,提出了一种改进自适应遗传算法(SAGA),引入sigmoid函数用于适应度值的转换,并参与到自适应调整交叉变异算子的操作中,加入灾变策略防止算法出现早熟的情况。最后将该算法对不同规模算例进行仿真,结果证明,相比遗传算法、自适应遗传算法、自适应灾变遗传算法、蚁群算法,该改进算法在不同规模算例实验结果中均有明显优化,表明改进算法能更好地避免早熟、提升求解质量与收敛稳定性,有效地均衡了路网负载量,降低了作业总成本。 展开更多
关键词 任务分配 负载量均衡 自动拣货系统 双层规划 遗传算法
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Real-time Business Network Selection Based on Auction Mechanism
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作者 LUO Lijuan LV Tingjie CHEN Xia 《China Communications》 SCIE CSCD 2014年第3期148-153,共6页
In the framework of heterogeneous wireless networks,it is difficult for every user to obtain QoS-based services anywhere at any time.Due to heterogeneous networks,the dynamic network selection scheme needs to achieve ... In the framework of heterogeneous wireless networks,it is difficult for every user to obtain QoS-based services anywhere at any time.Due to heterogeneous networks,the dynamic network selection scheme needs to achieve seamless mobility,and also supports the optimization of service quality and load balancing.According to different business characteristics,this paper describes different real-time businesses in utility functions,and solves network selection problems for real-time businesses.Based on auction mechanism,it introduces the upset price in order to maximize online profits.Meanwhile,the network selection scheme is also helpful to control network congestion.The study of real-time business network selection based on auction mechanism can not only meet the demands of service quality of multiple realtime applications,but also achieves load balancing between different networks. 展开更多
关键词 network selection real-timebusiness game theory AUCTION
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