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Monitoring and alarm system for landslides and rockfalls along railway lines (fiber optic grating sensing technology)
Monitoring and alarm system for landslides and rockfalls along railway lines (fiber optic grating sensing technology)
Product details
brief introduction
Fiber Bragg grating sensing technology is currently one of the advanced detection technologies internationally. The basic principle of Bragg sensors based on fiber Bragg grating sensing technology is that when the temperature, strain, stress, or other measured physical quantities around the grating change, it will cause a wavelength shift in the Bragg signal of the grating. By monitoring the Bragg wavelength shift, the change in the measured physical quantity can be obtained.
Fiber Bragg grating sensors have the advantages of anti electromagnetic interference, light weight, good temperature resistance, strong multiplexing ability, long transmission distance, a large number of sensors can be connected in series on one optical fiber, corrosion resistance, high sensitivity, and passivity. They are widely used in aerospace, power, petrochemical, nuclear industry, shipbuilding, civil and hydraulic engineering, bridges and other fields.
system function
This system is a monitoring and alarm system based on fiber Bragg grating sensing technology, integrating optoelectronic technology, computer software technology, information processing technology, control technology, and communication technology. The FA2100AC railway collapse and rockfall monitoring and alarm system is suitable for ballasted tracks. The sensor is installed below the track and can accurately monitor and alarm rockfalls that fall on the rails or sleepers and have an energy of more than 4000 joules (80 kilograms, falling height of 5 meters). At the same time, locate the specific location of the falling rocks, remind the staff to clean up the rocks, and prompt the train to slow down or stop running.
This system is a monitoring and alarm system based on fiber Bragg grating sensing technology, integrating optoelectronic technology, computer software technology, information processing technology, control technology, and communication technology. The FA2100AC railway collapse and rockfall monitoring and alarm system is suitable for ballasted tracks. The sensor is installed below the track and can accurately monitor and alarm rockfalls that fall on the rails or sleepers and have an energy of more than 4000 joules (80 kilograms, falling height of 5 meters). At the same time, locate the specific location of the falling rocks, remind the staff to clean up the rocks, and prompt the train to slow down or stop running.
The FA3100AC railway line collapse and rockfall monitoring and alarm system is suitable for ballastless tracks. The sensor is installed on the side of the track slab, which can accurately monitor and alarm rockfall on the rail or track slab with an energy of more than 500 joules (10 kilograms, falling height of 5 meters). At the same time, locate the specific location of the falling rocks, remind the staff to clean up the rocks, and prompt the train to slow down or stop running.
Technical features
- Real time monitoring and accurate alarm
- Operating 24/7, unaffected by extreme weather conditions
- The sensor is inherently safe, does not affect the existing railway system, is not affected by strong electromagnetic fields along the railway, and is suitable for monitoring the safety of landslides and rockfalls along the railway under different geological conditions
- The system is easy to install, operate, maintain, and detect
- Easy to relocate and reusable
- The transmission interval for signal acquisition does not require power supply
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