Abstract
Abstract. The high-density electrical method is a primary method used in shallow geophysical prospecting. Due to the rapid industrial development that has taken place in recent years, the function and performance of high-density electrical instruments have been considerably improved in several aspects. However, most of the electrical instruments currently available on the market still exhibit some shortcomings, such as being bulky, heavy, limited in their data acquisition accuracy, and difficult to connect to the Internet for remote monitoring. To address these problems, this study developed a new multifunctional four-dimensional (4D) high-density electrical instrument based on remote wireless communication technology. The system is small and lightweight, includes an integrated transceiver, has high data acquisition accuracy, and is capable of remote wireless real-time control. In this study, the hardware circuit was designed. The Arm all-in-one (AIO) LJD-eWinV5-ST7 with a 154.4 cm × 87 cm, 800 × 480 high-brightness wide-temperature-range display is used as the host computer, which has the advantages of small size, low power consumption, and abundant hardware resources. Internet of things (IoT) technology is incorporated in the system, and a 4G module is employed to provide a real-time remote control and data acquisition monitoring system based on the cloud platform. Tests showed that this instrument is stable and convenient to use and can meet the requirements for use in field prospecting.
Highlights
Energy serves as the foundation for social and economic development, and geological work serves all aspects of the social economy
The acquisition board (AB) serves as the front-end circuit, which is responsible for processing the analog signals acquired by the electrodes and converting them into digital signals to be processed
The transmitting circuit can be divided into alternating current (AC) transmission and direct current (DC) transmission, and different devices are applied in different environments and for different measurements (Li et al, 2020; Zeng et al, 2018)
Summary
Energy serves as the foundation for social and economic development, and geological work serves all aspects of the social economy. With the rapid development of science and technology and the fast growth of national economies, there is an increasing demand for energy in all countries It is pointed out in the 2019 China Mineral Resources (CMR) Report (Ministry of natural resources, 2019) that China’s consumption of primary energy, crude steel, gold, 10 non-ferrous metals, and cement remains the highest in the world. Different rocks and minerals possess different physical properties In geophysical prospecting, these differences are observed and studied, allowing mineral resources to be assessed indirectly through an exploration of the stratum lithology and geological structure. Electrical prospecting is an important branch of geophysical prospecting methods It observes and analyzes the spatial and temporal distributions and the propagation of the Earth’s electric field based on the different electrical properties of the underground rocks and minerals, thereby identifying the geological structures in the Published by Copernicus Publications on behalf of the European Geosciences Union
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