Device for quickly positioning ditch leakage point and control method thereof

Abstract

The invention relates to the field of exploration geophysics, and discloses a device for quickly positioning a ditch leakage point and a control method thereof. According to the device and the controlmethod thereof, a transmitting electrode and a receiving electrode are driven to move in water by utilizing an overwater mobile carrier, an abnormal point is determined according to an electric fielddifference in the transverse direction of a ditch, positioning information is acquired and recorded by means of a Beidou or GPS positioning device, and a leakage point is further determined in an abnormal region, thereby solving the problems that an existing geophysical method is not suitable for the ditch and the ditch leakage point cannot be rapidly, precisely and automatically positioned.

Description

technical field [0001] The invention relates to the field of exploration geophysics, in particular to a device for quickly locating a ditch leakage point and a control method thereof. Background technique [0002] The geophysical detection methods currently used in leak detection can generally be divided into electrical methods, electromagnetic methods, and seismic methods. Electrical methods include electrical sounding, electrical profiling, high-density electrical methods, etc. Electromagnetic methods include transient electromagnetic methods, ground penetrating radar, etc.; seismic methods include shallow earthquakes, Rayleigh surface wave methods, etc. At present, the widely used pseudo-flow field method utilizes the mathematical and physical similarity between the water flow field and the current field, and can quickly and accurately detect leakage points non-destructively. This method is generally used for leakage detection of dam piping. An electric field is establi...

AI Technical Summary

Problems solved by technology

The pseudo-flow field method widely used at present uses the mathematical and physical similarity between the water flow field and the current field, and can quickly and accurately detect the leakage point nondestructively. This method is generally used for the leakage detection of dam piping. An electric field is established between the water outlet point on the backwater side of the area and the water in the reservoir area, but the man-made ditches are generally relatively narrow, long, shallow, and regular, and the dam piping leakage detection method still requires constant replacement of electrode positions, which is complicated to operate manually And time-consuming, and according to the detection data to draw the three-dimensional distribution map of the current field to locate the leakage point, the data collection quantity is large and relatively complicated, so a device and method suitable for the ditch that can quickly and automatically locate the leakage point of the ditch are needed

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