铁道标准设计2018，Vol.62Issue(3)：26-30,5.DOI:10.13238/j.issn.1004-2954.201706200005
轨道安全监测中传感器优化配置研究
Research on Optimal Sensor Configuration in Track Safety Monitoring
摘要
Abstract
In order to study reasonable sensor configuration methods in supervising track structures for safe urban rail transit, this thesis presents selection basis for sensor monitoring points and evaluation standards of monitoring schemes based on bridge crossing line turnout model and rail strain transfer function with minimum error so as to guarantee economy and rationality of the schemes. The results show that:the model data curve is capable of guiding the selection of monitoring points of sensors; with the increasing number of sensors,the amount of monitoring errors decreases,but when the error ratio reaches its inflection point,the expected profit from an adding sensor declines;the layout schemes of sensors can be appraised and optimized through creating objective functions with minimum error principles and combination of error indexes;in addition, monitoring schemes on other indicators like rail displacement and additional force can also be determined by the method mentioned in this article.关键词
轨道结构/安全监测/优化配置/误差最小准则Key words
Track structure/Safety monitoring/Optimal configuration/Minimum error criterion分类
交通工程引用本文复制引用
刘超..轨道安全监测中传感器优化配置研究[J].铁道标准设计,2018,62(3):26-30,5.基金项目
北京市自然科学基金(L150003) （L150003）
