Estimation of Road Transverse Slope Using Crowd-Sourced Data from Smartphones
Estimation of Road Transverse Slope Using Crowd-Sourced Data from Smartphones
复制标题
使用智能手机的众包数据估算道路横向坡度
DOI:
10.1145/3397536.3422239
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Qiao, Chunming
中科院分区:
文献类型:
--
作者:
Gupta, Abhishek;Khare, Abhinav;Jin, Haiming;Sadek, Adel;Su, Lu;Qiao, Chunming
Integration of information on road transverse geometric features such as cross slope and superelevation in digital maps can widen the scope of its applications, which is primarily navigation, by enabling driving safety and efficiency applications such as Advanced Driver Assistance Systems (ADAS). The huge scale and dynamic nature of road networks make sensing such road geometric features a challenging task. Traditional methods oftentimes suffer from high cost, limited scalability and update frequency, as well as poor sensing accuracy. To overcome these problems, we propose a cost-effective and scalable road transverse slope estimation framework using sensor data from smartphones. Based on error characteristics of smartphone sensors, we intelligently combine data from accelerometer, gyroscope and GPS to estimate road transverse slope profile of a road segment. To improve accuracy and robustness of the system, the estimations of road transverse slope from multiple sources/vehicles are crowd-sourced to compensate for the effects of varying quality of sensor data from different sources. Extensive experimental evaluation on a test route of 9km demonstrates the superior performance of our proposed method, achieving 350% improvement on road transverse slope estimation accuracy over existing methods, with 90% of errors below 0.5°.
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2
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DOI:
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发表时间:
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作者:
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