原文传递
Smart road stud based two-lane traffic surveillance
| 题名： | Smart road stud based two-lane traffic surveillance |
| 正文语种： | 英文 |
| 作者： | Hua Wang;Wei Quan;Washington Yotto Ochieng |
| 作者单位： | Harbin Institute of Technology |
| 关键词： | Magnetic sensor; road stud; smart infrastructure; traffic surveillance;vehicle detection |
| 摘要： | This paper develops the two-lane traffic surveillance function of a smart road stud (SRS), which has the capabilities of high-resolution traffic data collection and transmission, and a light-based traffic guidance. The SRS addresses the limitations of the current systems with the potential for high performance and usage for a variety of applications. SRS nodes are mounted on the road surface along the lane separation lines instead of the intrusive middle of the lane detection sensors. The key innovation in SRS design is its ability to detect vehicles in two adjace nt lanes in real time by employing a three-axis geomagnetic sensor mounting on the lane line, which is the basis of advaneed applications such as traffic surveillance, driving guidance, and congestion monitoring. Multiple vehicles are recognized based on the superposition of the disturbance of the geomagnetic fields. Magnetic field changes along the axes are simulated and analyzed with vehicles modeled as magnet dipoles to determine the criteria for the detectio n of vehicles in adjace nt lanes, which are verified by actual waveforms. Extended dual-window and two-lane vehicle detection algorithms are developed, enabling to distinguish five detection scenarios and count vehicles in two lanes. Field test results show that one SRS can detect traffic in adjacent lanes with a correct vehicle detection rate of over 98%, the same level achievable by intrusive middle of the lane detectors. Based on the enhanced features, high performance, cost-effectiveness, and value-added services, the SRS is a significant improvement on the conventional studs for intellige nt trans port system applications. |
| 出版日期： | 2020 |
| 出版年： | 2020 |
| 期刊名称： | Journal of Intelligent Transportation Systems Technology Planning and Operations |
| 卷： | Vol24 |
| 期： | No01-06 |
| 页码： | 480-493 |
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