In recent years, owing to the shortage of oil and gas resources and increasing difficulty in mining, traditional (wired) microseismic monitoring equipment has been unable to meet the needs of energy exploitation. Therefore, it is necessary to develop new high-precision seismic exploration and data acquisition systems. In this study, we combined advanced acquisition systems with wireless technology to develop a new wireless microseismic acquisition system. The hardware circuit of the acquisition system mainly includes a data acquisition board and a main control board. High-precision analog-to-digital conversion and digital filtering technologies are used to provide data with high signalto-noise ratios, resolution, and fidelity to the acquisition stations. Key technologies were integrated into the ARM (Advanced RISC Machines) of the main control board: reliable GPS technology was employed to realize synchronous acquisitions among various acquisition stations, and WIFI technology was used to achieve wireless data communication between acquisition stations and the central station, thus improving the data transmission speed and accuracy. After conducting a series of evaluation tests, it was found that the system was stable, convenient to use, and had high data accuracy, therefore providing significant support for the solution to problems encountered in current oil and gas exploration processes, such as the complicated environment and inconvenient construction.
Abstract. Visual interfaces and wireless monitoring have played
significant roles in the application of electromagnetic transmitters.
Therefore, we have designed a wireless monitoring system that is based on the
Visual Studio 2015 Windows form application by using C# language and
multi-threading technology. The system can effectively implement many
functions, including time monitoring via a real-time clock, switching of the
transmitting frequency, changing of transmission mode, and the storage and
verification of the transmitter condition information. These things allow the
wireless monitoring system to support condition monitoring and operation
control of the transmitter. The
results of several field tests confirm that the proposed wireless monitoring
system provides a user-friendly interface and convenient and stable
operation. The system is able to satisfy the wireless monitoring and
multifunctional demands for transmitters implemented in land electromagnetic
exploration and act as a reference for scientific researchers pursuing
instrument development and electromagnetic prospecting.
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