This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance plan. The...This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance plan. The system is formulated into five function modules, and the research problem is to determine one auxiliary maintains plan, including the time allocation and frequency of maintenance. The case of Guangzhou metro is conducted to illustrate the applicability of SOMS, and the results reveal a number of interesting insights into subway maintenance system, i.e., the worksheet can reduce duplication of redundant maintenance work, the repair cost, and the damage caused by frequent disassembly.展开更多
无线传感器网络栅栏覆盖在水面与陆地场景中存在较大差别,在水面覆盖栅栏需要考虑节点受外界因素影响导致位置漂移等问题,因此提出一种水面WSN弱栅栏覆盖方法(A method of WSN weak barrier covering for water surface WBWS),由于在部...无线传感器网络栅栏覆盖在水面与陆地场景中存在较大差别,在水面覆盖栅栏需要考虑节点受外界因素影响导致位置漂移等问题,因此提出一种水面WSN弱栅栏覆盖方法(A method of WSN weak barrier covering for water surface WBWS),由于在部署传感器节点时已经形成一些子栅栏段,因此首先在部署区域中搜索已经形成的子栅栏,然后利用匈牙利算法派遣可移动节点拼接子栅栏完成弱栅栏的构建,且保证该过程中移动节点移动距离之和最小,最后研究了水面栅栏的维护问题。实验结果表明该方法能够有效的构建弱栅栏且能耗较低。展开更多
文摘This paper aims to propose a modeling framework for subway operation and maintenance system (SOMS), which analyzes the train condition data based on both train sensor network data and basis train maintenance plan. The system is formulated into five function modules, and the research problem is to determine one auxiliary maintains plan, including the time allocation and frequency of maintenance. The case of Guangzhou metro is conducted to illustrate the applicability of SOMS, and the results reveal a number of interesting insights into subway maintenance system, i.e., the worksheet can reduce duplication of redundant maintenance work, the repair cost, and the damage caused by frequent disassembly.
文摘无线传感器网络栅栏覆盖在水面与陆地场景中存在较大差别,在水面覆盖栅栏需要考虑节点受外界因素影响导致位置漂移等问题,因此提出一种水面WSN弱栅栏覆盖方法(A method of WSN weak barrier covering for water surface WBWS),由于在部署传感器节点时已经形成一些子栅栏段,因此首先在部署区域中搜索已经形成的子栅栏,然后利用匈牙利算法派遣可移动节点拼接子栅栏完成弱栅栏的构建,且保证该过程中移动节点移动距离之和最小,最后研究了水面栅栏的维护问题。实验结果表明该方法能够有效的构建弱栅栏且能耗较低。
