针对道面全时域监测手段的不足，提出了一种基于光栅阵列振动传感的道面车辆监测方法。该方法基于光栅阵列技术，通过将光栅阵列传感光缆布设道面底层，利用光栅阵列解调设备实现车辆振动行驶信息的获取。通过对车辆的行驶振动数据进行理论分析和实验研究，在有效滤波的前提下，可准确获取车辆行驶的轨迹，并进一步测得车辆行驶的速度、位置等信息。此外，通过设计基于图像的车辆跟踪识别算法，极大地消除了恶劣环境的影响，可实现监测路段全时全域的跟踪监测，为公路的智能化探索了一条新的道路。
This paper addresses the limitations of full-time domain monitoring methods for pavement by introducing a road vehicle monitoring approach based on grating array vibration sensing. Grating array vibration sensing utilizes grating array technology, where a grating array sensor optical cable is laid beneath the road surface. Through grating array demodulation equipment, vehicle vibration information is extracted. Theoretical analysis and experimental research on vehicle vibration data reveal that, with effective filtering, the experimental setup can accurately capture vehicle trajectories and ascertain vehicle speed and location. Furthermore, the paper proposes an image-based vehicle tracking and recognition algorithm to mitigate the impact of harsh environmental conditions, enabling comprehensive tracking and monitoring of the entire monitoring section in real-time. This methodology paves the way for advancements in intelligent highway systems.
[1] 潘明达, 陈艾玲, 倪侃俊. 基于图像识别的雷达航标监测软件设计与实现[J]. 计算机时代, 2022(12): 61-65. Pan M D, Chen A L, Ni K J. Design and implementation of radar navigation mark monitoring software based on image recognition [J]. Computer Era, 2022(12): 61-65. (in Chinese)
[2] Li Y, Zhang W. Traffic flow digital twin generation for highway scenario based on radar-camera paired fusion [J]. Scientific Reports, 2023, 13(1): 1-15.
[3] 王彬, 张伟锋, 赵双祥, 等. 微波光子传感技术研究进展综述[J]. 电子学报, 2022, 50(4): 769-781. Wang B, Zhang W F, Zhao S X, et al. Review of research progress of microwave photon sensing technology [J]. Acta Electronica Sinica, 2022, 50(4): 769-781. (in Chinese)
[4] 蔡海文, 叶青, 王照勇, 等. 分布式光纤声波传感技术研究进展[J]. 应用科学学报, 2018, 36(1): 41-58. Cai H W, Ye Q, Wang Z Y, et al. Research progress of distributed optical fiber acoustic sensing technology [J]. Journal of Applied Sciences, 2018, 36(1): 41-58. (in Chinese)
[5] Ye Z P, Wang W J, Wang X, et al. Traffic flow and vehicle speed monitoring with the object detection method from the roadside distributed acoustic sensing array [J]. Frontiers in Earth Science, 2023, 10: 992571.
[6] Liu H F, Ge W W, Pan Q X, et al. Characteristics and analysis of dynamic strain response on typical asphalt pavement using fiber Bragg grating sensing technology [J]. Construction and Building Materials, 2021, 310: 125242.
[7] Sun X. Fiber Bragg grating temperature measurement combined with infrared flame detector applied to highway tunnel fire monitoring [J]. Journal of Electrotechnology, Electrical Engineering and Management, 2022, 5(1): 61-67.
[8] Wu H, Chen J, Liu X, et al. One-dimensional CNN-based intelligent recognition of vibrations in pipeline monitoring with DAS [J]. Journal of Lightwave Technology, 2019, 37(17): 4359-4366.
[9] Soto M A, Ramirez J A, Thévenaz L. Intensifying the response of distributed optical fibre sensors using 2D and 3D image restoration [J]. Nature Communications, 2016, 7(1): 10870.
[10] Liu H, Ma J, Xu T, et al. Vehicle detection and classification using distributed fiber optic acoustic sensing [J]. IEEE Transactions on Vehicular Technology, 2019, 69(2): 1363-1374.
[11] Ding P, Liu W, Gu H, et al. Demodulation of a weak fiber Bragg grating array using a fiber delay line [J]. Applied Optics, 2020, 59(8): 2325-2328.
[12] Meng X, Wang S, Fang N, et al. Distributed optical fiber sensing system based on semiconductor lasers with mutual unbalanced double optical injection [J]. Optik, 2023, 278: 170706.
[13] Bergman A, Yaron L, Langer T, et al. Dynamic and distributed slope-assisted fiber strain sensing based on optical time-domain analysis of Brillouin dynamic gratings [J]. Journal of Lightwave Technology, 2014, 33(12): 2611-2616.
[14] Liang S, Zhao X, Liu R, et al. Fiber-optic auditory nerve of ground in the suburb: for traffic flow monitoring [J]. IEEE Access, 2019, 7: 166704-166710.
[15] Zeng M, Zhao H, Wu D, et al. A vibration-based traffic monitoring system using distributed optical sensing technology [J]. Journal of Testing and Evaluation, 2019, 48(3): 1799-1813.
[16] Narisetty C, Hino T, Huang M, et al. Overcoming challenges of distributed fiber-optic sensing for highway traffic monitoring [J]. Transportation Research Record, 2021, 2675(2): 233-242.
