目前,仓储管理存在管理信息化程度低、数据采集方式落后、准确性低等问题,不利于物流业的长远发展。随着科技的发展,越来越多的新技术被应用到仓储自动化系统中。基于此,笔者结合仓储管理的实际情况和仓储内部空间的结构特征,提出基于...目前,仓储管理存在管理信息化程度低、数据采集方式落后、准确性低等问题,不利于物流业的长远发展。随着科技的发展,越来越多的新技术被应用到仓储自动化系统中。基于此,笔者结合仓储管理的实际情况和仓储内部空间的结构特征,提出基于射频识别技术(Radio Frequency Identification,RFID)和Mesh组网的仓储定位方法,以期为相关研究提供借鉴。展开更多
Path protections have become increasingly important for current mesh optical networks because fast restorations in generalized multiprotocol label switching (GMPLS) networks are uncertain. However, setting up additi...Path protections have become increasingly important for current mesh optical networks because fast restorations in generalized multiprotocol label switching (GMPLS) networks are uncertain. However, setting up additional disjoint paths to protect connections leads to more path setup blocking and signaling collisions. We analyze signaling collisions, path blocking and blocking probability, as well as calculate node-to-node blocking probabilities. A signaling-based path-segment protection (PSP) is proposed, which integrates segment protections and path protections as well as enhances the performance of path protections and ring protections. The setup of PSP connections causes less blocking probability than the setup of path protection connections in the simulations.展开更多
文摘目前,仓储管理存在管理信息化程度低、数据采集方式落后、准确性低等问题,不利于物流业的长远发展。随着科技的发展,越来越多的新技术被应用到仓储自动化系统中。基于此,笔者结合仓储管理的实际情况和仓储内部空间的结构特征,提出基于射频识别技术(Radio Frequency Identification,RFID)和Mesh组网的仓储定位方法,以期为相关研究提供借鉴。
基金supported in part by the National "863" Program of China(No.2009AA01A345)the National "973" Program of China(No.2011CB302702)the National Natural Science Foundation of China (No.60932004)
文摘Path protections have become increasingly important for current mesh optical networks because fast restorations in generalized multiprotocol label switching (GMPLS) networks are uncertain. However, setting up additional disjoint paths to protect connections leads to more path setup blocking and signaling collisions. We analyze signaling collisions, path blocking and blocking probability, as well as calculate node-to-node blocking probabilities. A signaling-based path-segment protection (PSP) is proposed, which integrates segment protections and path protections as well as enhances the performance of path protections and ring protections. The setup of PSP connections causes less blocking probability than the setup of path protection connections in the simulations.