Laser ranging-based dangerous-rock deformation multipoint information extraction and warning system

Abstract

The invention provides a laser ranging-based dangerous-rock deformation multipoint information extraction and warning system, comprising a device body, a fixed-point support unit, a control point reflection unit and a client server. The device body comprises laser ranging sensors, refractors, a data acquisition instrument, a data recorder, a GPRS signal emitter, an antenna, a lithium battery and a frequency regulator. The laser emission frequency is controlled by the frequency regulator. Laser is emitted by the ranging sensors, with the emission angle being changed by the refractors, and is reflected back to the ranging sensors after reaching the control point reflection unit on a dangerous rock. Measurement signals are read by the data acquisition instrument and are recorded by the data recorder, and are emitted to the client server via the GPRS signal emitter. The laser ranging-based dangerous-rock deformation multipoint information extraction and warning system of the invention realizes real-time monitoring and warning of dangerous-rock multipoint deformation characteristics, makes up for the defects of existing methods that the cost is high, real-time monitoring is not achieved and representativeness of monitoring points are not high, and provides dangerous-rock deformation monitoring data and warning for related fields such as engineering geology, mine engineering and so on.

Description

technical field [0001] The invention belongs to the technical fields of geological engineering and mine engineering, and in particular relates to a multi-point information extraction and alarm device for dangerous rock deformation based on a laser ranging system. Background technique [0002] The monitoring of the deformation of the dangerous rock mass runs through the stages before, during and after the implementation of the prevention and control project. By closely monitoring the deformation dynamics of the dangerous rock mass, it is possible to predict the stability and deformation development trend of the dangerous rock mass, feedback the prevention and control construction design, guide the construction and inspect the prevention and control Effects play an important role. At present, the commonly used deformation monitoring methods include three-dimensional laser scanning monitoring, total station fixed-point deformation monitoring, and local crack deformation monitor...

AI Technical Summary

Problems solved by technology

The three-dimensional laser scanning monitoring has high precision, and can accurately and detailedly understand the deformation development trend of each point of the entire dangerous rock. However, due to the high cost of the laser scanner, it cannot be used for real-time monitoring; the total station can accurately understand the deformation development of specific control points However, due to the high cost, it cannot be used for real-time monitoring; local fracture deformation monitoring can monitor the deformation development trend of specific cracks in real time and provide early warning, but its representativeness is poor, and it cannot reflect the deformation development trend of the entire dangerous rock mass.

To sum up, there is currently no dangerous rock deformation monitoring device that can monitor multi-point deformation and give early warning in real time.

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