中国铁道科学2017，Vol.38Issue(3)：116-123,8.DOI:10.3969/j.issn.1001-4632.2017.03.17
基于雷达测速曲线的车辆减速器单位制动能高自动计算方法
Automatic Calculation Method for Energy Taken-out per Unit Length of Car Retarder Based on Radar Velocity Curve
摘要
Abstract
An automatic calculation method for car retarder's energy taken-out per unit length based on radar velocity curve and actual measurement calculation formula is put forward.Median filtering method is adopted to filter radar velocity curve.The action section of car retarder in radar velocity curve is then located accurately by means of combining data analysis and velocity integration.The acceleration of the selected action section is calculated through modelling with noise data based on random sample consensus (RANSAC),which is used to calculate automatically the energy taken-out per unit length of car retarder.The statistical analysis for the energy taken-out per unit length of car retarder during a period of time is performed and the result is shown by scatter plot in chronological order.Automatic computing outputs on real hump data are compared to manual calculation results,which shows that with this method,both the real time value of car retarder's energy taken-out per unit length and its trend in a certain period of time can be obtained.The result can serve for guiding retarder maintenance and promoting the speed control precision for rolling cars.关键词
车辆减速器/单位制动能高/车辆溜放速度/雷达测速曲线/随机抽样一致性Key words
Car retarder/Energy taken-out per unit length/Humping speed/Radar velocity curve/Random sample consensus分类
交通工程引用本文复制引用
郭玉华,黄华,谢亮..基于雷达测速曲线的车辆减速器单位制动能高自动计算方法[J].中国铁道科学,2017,38(3):116-123,8.基金项目
中国铁路总公司科技研究开发计划项目(J201SX002) （J201SX002）
中央高校基本科研业务费专项资金资助项目(2016JBZ005) （2016JBZ005）
