| 变分曲线模型及其在轨道数据库生成中的应用研究 |
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| 引用本文： | 上官伟,蔡伯根,王剑,陈德旺.变分曲线模型及其在轨道数据库生成中的应用研究[J].铁道学报,2011,33(6):62-67. |
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| 作者姓名： | 上官伟 蔡伯根 王剑 陈德旺 |
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| 作者单位： | 1. 北京交通大学电子信息工程学院,北京100044;北京交通大学轨道交通控制与安全国家重点实验室,北京,100044
2. 北京交通大学电子信息工程学院,北京,100044 |
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| 基金项目： | 国家自然科学基金，铁道部科技开发计划，国家863计划项目，轨道交通控制与安全国家重点实验室自主研究课题，中央高校基本科研业务费专项资金 |
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| 摘 要： | 本文研究有限约束条件下的变分曲线模型及其在铁路列控轨道数据库中的应用,提出从GPS轨道数据中自动生成适合列车控制的数字轨道地图的方法、模型和算法。通过大量实测数据对算法和方法进行验证、比较和改进,针对大量轨道数据建立其数据约简的组合数学模型,分析实际列车运行时有限约束条件,研究曲线演化理论,采用基于变分曲线模型曲线形变的思想对数据进行约简和误差剔除,在满足一定的误差前提下快速自动获取少量关键数据来描述铁道轨迹,完善列控轨道数据库的自动生成与优化方法,实现基于GPS的列车运行控制系统的实时、精确定位。
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| 关 键 词： | 变分曲线模型 有限约束条件 列控轨道数据库 GPS数据约简 |
Research on Variational Curve Model and Its Application in Track Database Generation |
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| SHANGGUAN Wei,CAI Bai-gen,WANG Jian,CHEN De-wang.Research on Variational Curve Model and Its Application in Track Database Generation[J].Journal of the China railway Society,2011,33(6):62-67. |
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| Authors: | SHANGGUAN Wei CAI Bai-gen WANG Jian CHEN De-wang |
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| Institution: | SHANGGUAN Wei1,2,CAI Bai-gen1,WANG Jian1,CHEN De-wang1,2(1.School of Electronics and Information Engineering,Beijing Jiaotong University,Beijing 100044,China,2.State Key Laboratory of Rail Traffic Control and Safety,China) |
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| Abstract: | The variational curve model under finite constrained conditions and its application in the railway train control track database were studied.The method,model and algorithm of digital track map auto-generation from GPS track data was raised.The algorithm and method are verified and improved by a large number of measured data.The composite data reduction model was established,on the basis of large quantities of track data.The actual finite constrained conditions in train operation were analyzed.The curve evol... |
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| Keywords: | variational curve model finite constrained condition train control track database GPS data reduction |
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