The invention discloses a vehicle code fitting method and system for an expressway scene, and the method comprises the steps: obtaining expressway vehicle trajectory data and mobile phone positioning data, extracting key fields, and respectively creating a vehicle space-time trajectory table and a mobile phone number space-time trajectory table; according to the two types of space-time trajectory tables, vehicle code fitting calculation is carried out, and a daily vehicle code fitting result is obtained; further, on the basis of a daily vehicle code fitting result, performing result noise reduction by adopting two noise filtering methods, namely threshold filtering and sample filtering based on head and tail end tracks, so as to obtain a high-confidence accompanying result candidate set; based on the high-confidence accompanying result candidate set, monthly aggregation is carried out to obtain a final vehicle code fitting result; noise in the data can be effectively processed, the adjoint relation between the highway vehicle and the mobile phone number can be accurately identified in a sparse data environment, and the accuracy and credibility of adjoint relation identification are improved.
本发明公开了一种用于高速公路场景的车码拟合方法及系统,包括:获取高速公路车辆轨迹数据及手机定位数据,提取关键字段,分别创建车辆时空轨迹表和手机号码时空轨迹表;根据两类时空轨迹表,进行车码拟合计算,得到每日的车码拟合结果;进一步,基于每日的车码拟合结果,采用阈值过滤和基于首尾端轨迹的样本过滤两类噪声过滤方法进行结果降噪,得到高置信伴随结果候选集;基于高置信伴随结果候选集,按月聚合得到最终车码拟合结果;本发明不仅能够有效处理数据中的噪声,还能在稀疏数据环境下准确识别高速公路车辆与手机号码的伴随关系,提高了伴随关系识别的准确性和可信度。
Vehicle code fitting method and system for expressway scene
一种用于高速公路场景的车码拟合方法及系统
2024-12-13
Patent
Electronic Resource
Chinese
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