| 基于复合信号特征的崩塌落石监测方法 |
| |
| 引用本文： | 任重,张新锦.基于复合信号特征的崩塌落石监测方法[J].武汉水运工程学院学报,2013(5):1113-1118. |
| |
| 作者姓名： | 任重 张新锦 |
| |
| 作者单位： | [1]保定市天河电子技术有限公司,保定071051 [2]昆明铁路局工务处,昆明650011 |
| |
| 基金项目： | 铁道部科技司科技研究开发计划项目重点课题2005G007＂高危路段线路障碍自动监测预警技术研究＂、2010G018-E-4＂艰险困难山区高速铁路综合技术研究—高陡边坡运营安全防灾监控及报警系统技术研究＂、2011G017-A＂铁路防灾减灾技术深化研究——铁路防洪安全检测监控＂资助 |
| |
| 摘 要： | 行车限界内的崩塌落石灾害监测是保障山区铁路行车安全的重点研究课题.若干基于单信号特征的监测方法已经投入应用,其固有的误报率和漏报率超出了铁路运输所能容忍的限度.考虑到崩塌落石会产生侵限目标和冲击波等多种信号特征,提出了一种基于复合信号特征的监测方法,对信号源不同的多种信号特征进行提取,同时要求这些特征必须具备高度的时空域相关性.理论分析和各山区路局的实践表明,此方法可以使监测系统的误报率和漏报率同时降低到若干数量级以下.
|
| 关 键 词： | 铁路行车安全 崩塌落石监测 复合信号特征 红外激光测量 冲击波定位 |
A Composite-Feature-Based Method for Rockfall Hazard Surveillance |
| |
| Authors: | REN Zhong ZHANG Xinjin |
| |
| Institution: | 1.Baoding Galaxy Elec.Tech.Co.Ltd.., Baoding 071051, China; 2.Public Works Department, Kunming Railway Administration, Kunming 650011, China;) |
| |
| Abstract: | Rockfall hazard surveillance inside traffic clearance is an important research issue for railway transportation safety in mountain area.Some single-feature-based detecting methods have been proposed and practiced,whose intrinsic False-positive-ratio （FPR） and False-negative-ratio （FNR） are worse than railway transportation can tolerate.Considering the fact that rockfall on railway line produces various signal features including object appearance and impulse wave,a composite-feature-based detecting method which imposes spatiotemporal constraint on features extracted from multiple signal sources is proposed.Theoretical analysis and practice in mountain railway show that FPR/FNR with several orders lower can be obtained simultaneously. |
| |
| Keywords: | railway transportation Safety tockfall hazard surveillance composite feature infrared laser measuring impulse relocation |
| 本文献已被 维普 等数据库收录！ |
