Dian Fan, Jiao Chen, Jian Wang, Jiajing Liu. Correction of Fire Location Error of Tunnel Fire Under Longitudinal Wind[J]. Laser & Optoelectronics Progress, 2019, 56(14): 141201
- Laser & Optoelectronics Progress
- Vol. 56, Issue 14, 141201 (2019)
Fig. 1. Principle diagram of fiber grating temperature sensing system
Fig. 2. Flow chart of fire point estimation algorithm
Fig. 3. Diagram of tunnel sensor distribution and ignition positions in full-scale simulation test
Fig. 4. Temperature versus time of sensor under natural wind at No. 1 ignition position
Fig. 5. Temperature field changes under different wind speeds at No. 1 ignition position. (a) Natural wind; (b) longitudinal wind speed of 1.5 m/s; (c) longitudinal wind speed of 3 m/s; (d) longitudinal wind speed of 4.5 m/s
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Table 1. Ignition test conditions and alarm response information table
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Table 2. Correction result table of ignition point estimation algorithm
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