Timing measurement device for soil erosion amount

Abstract

The invention relates to a timing measuring device for soil erosion amount. The timing measuring device comprises a laser range finder, a measuring robot, a timing control module, a data temporary storage module, a data remote transmission module and a control terminal. The measuring robot controls the laser range finder to perform first-round scanning on the slope surface according to a specified track and a specified frequency, and a first-round distance measurement value is acquired; the timing control module is used for controlling the time interval of second-round scanning, the measuring robot controls the laser range finder to conduct second-round scanning on the slope surface according to the specified track and the specified frequency, and a second-round distance measurement value is obtained through collection; and the first-round spacing measurement value and the second-round spacing measurement value are sent to the control terminal through the data remote transmission module, and calculation at the control terminal is performed to obtain the soil erosion amount of the slope. Sensors or measuring nails do not need to be arranged on the slope surface, loss is not prone to occurring, the density of measuring points is larger, and experiment and measuring results can be better guaranteed.

Description

technical field [0001] The invention relates to a soil erosion timing measurement device, which belongs to the technical field of water and soil conservation monitoring. Background technique [0002] The traditional soil erosion is measured by the "steel drill method". The most important monitoring index in the monitoring of water and soil conservation in development and construction projects is the monitoring of soil erosion. It is a method of manually bringing the required monitoring instruments to the monitoring point, each instrument works independently, and the monitoring results are recorded. . This method requires surveyors to arrive at the site regularly for monitoring. At the same time, a large number of instruments and equipment need to be carried each time. Moreover, there are large errors and many uncertain factors in manual measurement and recording, which seriously affect the accuracy of monitoring. [0003] The existing "steel drill method" to measure soil e...

AI Technical Summary

Problems solved by technology

[0005] For the measurement of soil erosion by the above-mentioned "steel drill method", the obtained Qd mainly depends on β, H, S, and needs There are many variables to be measured; moreover, it is necessary to manually measure the corresponding β, H, and S for each measuring nail, and the operation is cumbersome; in addition, due to the limitation of the slope, the number of "steel drills" inserted is limited, and 80m2, and the slope angles corresponding to different areas of the entire slope may be different, that is, there may be a certain gap in the size of β at different positions , and the calculated h=H·cosβ, β will also affect the accuracy of h to a certain extent; and the current measurement method is to ignore the influence of this value

Therefore, the sample size is small (the number of steel drills), the error of the calculated h value is large, and the accuracy error of the final measured water and soil loss is large

[0006] For the existing "brazing method", if you want to reduce the measurement error, the most feasible operation in theory is to ensure that each measurement, " The length direction of the "steel brazing" is always perpendicular to the slope, but this operation is obviously unrealistic, because the slope often has unevenness

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