Automatic-tracking type landslide displacement measurer with high accuracy and wide range

Abstract

The invention discloses an automatic-tracking type landslide displacement measurer with high accuracy and a wide range, comprising an infrared displacement sensing device, a stepper motor tracking device and a data collecting and processing system, wherein the infrared displacement sensing device comprises a guide wheel, a traction steel wire, a light-stopping sheet, a light-shielding fixed box, an infrared transmitting tube, a light-through hole, an infrared receiving tube, an upper pulley, a base plate, a lower pulley, a spring and a box body, wherein the traction steel wire is fixedly connected with the middle of the light-stopping sheet; the infrared receiving tube over against the infrared transmitting tube via the light-through hole in the light-stopping sheet; the light-shielding fixed box is installed on the stepper motor tracking device; the light-shielding fixed box horizontally moves along with the movement of a stepper motor; and the data collecting and processing system in a control box is electrically connected with the stepper motor tracking device, the infrared transmitting tube and the infrared receiving tube. The automatic-tracking type landslide displacement measurer disclosed by the invention is simple in structure, good in stability, wide in range, high in accuracy, and capable of performing automatic tracking and real-time monitoring under the condition of a landslide displacement according to a preset measurement mode.

Description

technical field [0001] The invention relates to an instrument for monitoring the movement displacement of a landslide body, in particular to an automatic tracking type high-precision and large-range landslide displacement measuring instrument. Background technique [0002] There are many methods and means for monitoring the displacement of landslides. The commonly used measurement methods in actual engineering include mechanical measurement, level measurement, GPS positioning monitoring, etc. In recent years, some new displacement measurement technologies have been used for the monitoring of landslide displacement. Such as: optical fiber displacement sensor, coaxial cable electromagnetic wave reflection technology, etc. However, these displacement measurement devices are far from the actual needs in terms of range, measurement accuracy, instrument cost, adaptation to the environment, convenience of installation and use, and real-time measurement. Especially in the process of...

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Problems solved by technology

[0002] There are many methods and means for monitoring the displacement of landslides. The commonly used measurement methods in actual engineering include mechanical measurement, level measurement, GPS positioning monitoring, etc. In recent years, some new displacement measurement technologies have been used for the monitoring of landslide displacement. Such as: optical fiber displacement sensor, coaxial cable electromagnetic wave reflection technology, etc. However, these displacement measurement devices are far from the actual needs in terms of range, measurement accuracy, instrument cost, adaptation to the environment, convenience of installation and use, and real-time measurement. Especially in the process of gestation and development of landslides, the state of motion of landslides often alternates between stable and unsteady states. In stable states, landslides are in the process of energy accumulation, and their displacements are very small. In the unsteady state, the displacement of the landslide is large, and it is in the process of energy release; in order to comprehensively monitor and accurately evaluate the movement of the landslide, and to grasp the critical point of the landslide movement, it is necessary to be able to work normally in both stable and unstable states High-precision, large-range landslide displacement measurement sensor; however, for general instruments, measurement accuracy and range are a pair of contradictions, high-precision sensors will be limited in range, and existing landslide displacement sensors cannot combine the two well. unified

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