Data acquisition device for water infiltration monitoring by DC electric method

Abstract

The embodiment of the invention provides a data acquisition device for water infiltration monitoring by a DC electric method. The data acquisition device is characterized by comprising a master control unit, a data acquisition unit breaking and closing and electrode selection module, a working electrode interface, selection switch module thereof and a DC power supply control module. In the data acquisition device, a front multi-core cable interface and a rear multi-core cable interface of the data acquisition unit breaking and closing and electrode selection module are connected with two grounding electrode arrays to form the data acquisition unit and are connected in parallel by a data communication line or a 4G / 5G network data acquisition unit, two four-core cable interfaces of the dataacquisition unit breaking and closing and electrode selection module communicate with a working electrode of the data acquisition unit in parallel, arbitrary combination and separation of adjacent data acquisition unit is achieved, and the working electrode is randomly selected in a combination unit. The data acquisition device is key equipment for achieving long-distance, remote, unattended and high-efficiency monitoring and real-time early-warning on underground water transmission culvert, embankment and slope water infiltration.

Description

technical field [0001] The invention relates to the technical fields of geophysics and water engineering monitoring, in particular to a data collector for monitoring water body infiltration by direct current method. Background technique [0002] In water engineering, there are many reasons that may lead to safety hazards such as water seepage in dikes, embankments, underground box culverts, PCCP pipe culverts, inverted siphons, reservoir slopes, etc. If water seepage is not discovered in time and treated, It will further develop into dangerous situations such as leakage, collapse and landslide. The direct current method of geophysics is an effective method to discover the infiltration of water bodies. This is because the resistivity of rock and soil will decrease when there is water infiltration. Using this basic law, fixed and long-term direct current currents are arranged in key parts of water projects and slopes. By detecting the line (or surface) using the method, monit...

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Problems solved by technology

[0003] However, for the monitoring of underground water conveyance hidden culvert, embankment and slope water body infiltration in water engineering, especially for long-distance and area-based monitoring, the current direct current method detection technology and equipment need to complete data collection once, which takes a long time and is inefficient , so it cannot meet the monitoring requirements of automatic segmentation of monitoring lines and synchronous fast data collection

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