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As a geophysical method, electrical prospecting technology is to study geological structures and conduct geophysical exploration of minerals according to the electrochemical characteristics of rock mass in the earth's crust. With the wide application of electrical prospecting technology and the development of related software and instrument design, the technical level of this method has been greatly improved. In recent years, electrical prospecting has been applied in geological survey, groundwater, mineral resources, site pollution investigation and so on.

As the current soil and groundwater pollution is becoming more and more serious, the demand for pollution investigation and treatment is also increasing. Behind the pollution investigation and treatment, there is a more critical pollution control factor is the monitoring of pollution. The traditional way of investigation can only rely on artificial timing and regular data collection and measurement, which has the following problems: the equipment needs to be powered in the field for a long time, and manual long-term on-duty is required; the measurement frequency cannot be guaranteed due to human factors. In addition to polluted site monitoring positions, there are also many engineering monitoring needs in the field of geotechnical and geological hazard engineering, such as dam leakage, changes in groundwater levels, and movement of landslides. These engineering problems cannot be conclusively judged through a simple investigation, and all require long-term monitoring to understand the changes of the problems. The online monitoring system has become an inevitable choice to solve these problems.

Geomative extends the Geomonitor online monitoring system based on electrical methods. It takes direct current method products as the core, is based on the GeoCloud cloud platform, integrates industrial control, network communication, and various sensors, and provides online real-time monitoring of the underground environment. The system can combine the surface information provided by the sensor with the apparent resistivity data containing formation information, and conduct Time-lapse analysis through long-term continuous observation, so as to gain insight into the evolution of the surface and underground environment, which can be used to monitor various underground Pollution, leaks and seepages, illegal excavation and sewage discharges, mine and surface geological hazards.

The online monitoring system needs to operate stably in the field for a long time. Geomonitor online monitoring cabinet, closed design, waterproof, dustproof, lightning protection, built-in heat exchange system, external solar panels to power the internal power supply. And the size of the cabinet can be customized according to the actual scene to meet the application in various complex and harsh environments.

The GD-20 mainframe and switching system are deployed inside the online cabinet, and the customized wire access panel replaces the high-density cables in the field. The electrodes are connected to the panel through one-dimensional wires, and the whole system can support 0-600 electrode systems, and also support the expansion of more channels.

The site adopts the method of online monitoring to carry out the geophysical detection of key materials and oxidation efficiency multi-field and multi-scale behavior items of strong oxidation of organic pollution. The detection work was carried out before the rotary spraying agent, at the interval between different chemical spraying sprays, and after the rotary spraying test. The vertical electrical characteristics of the measurement area were collected to explore the diffusion of the restoration agent.