Transient electromagnetic data acquisition system and method based on wireless sensor network

Abstract

The invention discloses a transient electromagnetic data acquisition system and method based on a wireless sensor network. The system comprises terminal acquisition nodes, router nodes and a gateway node, wherein a wireless sensor network is formed among the three nodes; the gateway node is connected with an industrial personal computer and receives an instruction of the industrial personal computer and transmits a data acquisition instruction to the terminal acquisition nodes through the wireless sensor network; the terminal acquisition nodes acquire transient electromagnetic data in monitoring areas according to the data acquisition instruction, converts the transient electromagnetic data into digital signals and transmits the digital signals to the gateway node in a data packet form through the wireless sensor network. The distributed transient electromagnetic data acquisition system based on the wireless sensor network has high surveying accuracy, a connecting line between each two nodes is omitted, field operation is convenient, the working efficiency is improved, and the nodes adopt a modular design and are convenient to maintain and replace.

Description

technical field [0001] The invention relates to the field of geophysical detection science and technology, in particular to a transient electromagnetic data acquisition system and method based on a wireless sensor network. Background technique [0002] Transient electromagnetic detection technology is a commonly used geophysical detection technology, which is widely used in resource exploration, geological structure detection, environmental investigation and monitoring, reservoir basement and dam crack exploration, etc. It has played an invaluable role in the field of geophysical detection instrument technology alternative role. [0003] The traditional transient electromagnetic detection adopts the working mode of single-channel transmission and single-channel reception. In order to enhance the signal-to-noise ratio and improve the acquisition accuracy, the time-domain superposition method is usually used, that is, the collected electromagnetic signals are periodically supe...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of existing transient electromagnetic detection instruments, such as low measurement efficiency, small amount of data, low precision, and only single-channel reception, the present invention provides a wireless sensor network-based multi-point acquisition with flexible networking Distributed Transient Electromagnetic Data Acquisition System and Method

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