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.