Rockfall monitoring method and device and computer equipment
A rockfall and monitoring area technology, applied in the direction of measuring devices, calculations, optical devices, etc., can solve the problems of inaccurate falling rockfall locations, errors, and the inability to clearly understand the geographical environment around the rockfall and rockfall hazards, etc., to achieve Accurate monitoring of rockfall latitude and longitude, reliable results, and the effect of monitoring images
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Embodiment 1
[0064] see figure 1 , figure 1 It is a schematic flowchart of a rockfall monitoring method provided by an embodiment of the present disclosure. like figure 1 As shown, the method includes:
[0065] S101, acquiring a three-dimensional geographic model of the area to be monitored;
[0066] Specifically, falling rocks are often encountered along the railway line, which will affect the normal operation of the train. Therefore, it is necessary to accurately monitor the position of the falling rocks. The location along the railway is the area to be monitored. The three-dimensional geographic model includes topographic features and location features of the area to be monitored. In the process of 3D modeling, a 3D database will also be obtained. The 3D database includes Digital Surface Model (DSM), Digital Orthophoto Map (DOM), Digital Elevation Model (DEM), vector data etc.
[0067] Among them, DSM refers to the ground elevation model including the height of surface buildings,...
specific Embodiment approach
[0098] According to a specific implementation manner of the present disclosure, the step of monitoring whether there is rockfall in the area to be monitored in real time through an optical fiber sensor includes:
[0099]Real-time monitoring of the wavelength displacement variation of the optical fiber sensor; if the wavelength displacement variation of the optical fiber sensor is within a preset range, it is determined that there is a rockfall in the area to be monitored;
[0100] If the wavelength displacement variation of the optical fiber sensor is not within the preset range, it is determined that there is no falling rock in the area to be monitored.
[0101] During specific implementation, in the case of falling rocks, the wavelength displacement variation monitored by the optical fiber sensor will be within a certain range. Therefore, the wavelength displacement variation of the fiber optic sensor is monitored in real time. When the wavelength displacement variation is w...
Embodiment approach
[0113] According to a specific implementation manner of the present disclosure, the calculation method of the projected coordinates of the rockfall includes:
[0114]
[0115] Among them, X 1 is the abscissa of the projected coordinates of the fiber optic sensor, Y 1 is the ordinate of the projected coordinates of the fiber optic sensor, X 2 is the abscissa of the projected coordinates of falling rocks, Y 2 is the ordinate of the projected coordinates of the falling rock, S is the distance between the falling rock and the optical fiber sensor, and α is the azimuth of the falling rock.
[0116] According to a specific implementation manner of the present disclosure, the method for calculating the latitude and longitude of the rockfall includes:
[0117] (X 2 ,Y 2 ) => (L 2 ,B 2 )
[0118]
[0119] Among them, (X 2 ,Y 2 ) is the projected coordinates of falling rocks, (L 2 ,B 2 ) is the latitude and longitude of falling rocks, λ 1 , lambda 2 is a fixed parame...
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