Two-stage wake-up circuit for underwater acoustic communication and wake-up method thereof

Abstract

The invention relates to a two-stage wake-up circuit for underwater acoustic communication and a wake-up method thereof. The two-stage wake-up circuit is respectively connected to a receiving node anda receiving transducer, the receiving transducer performs data communication with the sending node through a sending transducer, and the two-stage wake-up circuit is characterized in that: the two-stage wake-up circuit comprises a signal preprocessing module and a single-chip microcomputer module; the signal preprocessing module continuously monitors a communication channel, and when the receiving transducer sends a wake-up signal, the received wake-up signal is preprocessed and then sent to the single-chip microcomputer module; the single-chip microcomputer module judges the preprocessing result according to a preset voltage threshold value; and when the preprocessed wake-up signal exceeds a preset voltage threshold, validity judgment is carried out on the preprocessed wake-up signal, and two paths of signals are generated, one path is an interrupt signal used for waking up the receiving node, and the other path is a signal for identification processing of the preprocessed wake-up signal. The circuit and the method can be widely applied to the field of underwater acoustic communication.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic node communication, in particular to a two-stage wake-up circuit for underwater acoustic communication and a wake-up method thereof, which are suitable for communication and network node systems in underwater acoustic environments. Background technique [0002] With the over-exploitation of terrestrial resources, human eyes have shifted to the ocean. There are abundant resources in the ocean, so it is imperative to develop and explore the ocean. In recent years, as the application of underwater acoustic communication and network in the field of marine information continues to deepen, it has important applications in the survey and development of marine resources, marine environment monitoring, and national defense. [0003] The network in the underwater acoustic environment is composed of multiple nodes, and the limited energy has become a major limitation for underwater nodes to achi...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of high false wake-up rate, high energy consumption and single detection type of the above-mentioned wake-up circuit, the purpose of the present invention is to provide a two-stage wake-up circuit and wake-up method for underwater acoustic communication, which can accurately identify wake-up signals, Ultra-low ene

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