Junyu LONG, Decao WU, Binbin LUO, Ying ZHANG, Yufeng GUO, Sheng CAO, Lei DENG, Mingfu ZHAO. Dual Wavelength Laser Road Meteorological Sensing Method[J]. Acta Photonica Sinica, 2023, 52(6): 0614003
- Acta Photonica Sinica
- Vol. 52, Issue 6, 0614003 (2023)
Fig. 1. Diagram of beam propagation
Fig. 2. Framework of road meteorology sensor system
Fig. 3. Experimental system diagram
Fig. 4. Picture of sensor
Fig. 5. Experimental road
Fig. 6. Meteorological state measurement data of asphalt road under different angles
Fig. 7. Meteorological state measurement data of stone road under different angles
Fig. 8. Experimental data set of the variation of
Fig. 9. Experimental data set of the variation of
Fig. 10. Error analysis of thickness measurement of seeper
Fig. 11. Experimental data set of the variation of
Fig. 12. Error analysis of thickness measurement of ice
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Table 1. Road state judgment logic
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Table 2. Comparison of the zero-thickness reflectivity between seeper and ice in asphalt road
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Table 3. Comparison of the zero-thickness reflectivity between seeper and ice in stone road
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