A two-stage wake-up circuit and wake-up method for underwater acoustic communication

Abstract

The invention relates to a two-stage wake-up circuit and wake-up method for underwater acoustic communication. The two-stage wake-up circuit is respectively connected to a receiving node and a receiving transducer, and the receiving transducer performs data communication with the sending node through the sending transducer. , characterized in that: the two-stage wake-up circuit includes a signal preprocessing module and a single-chip microcomputer module; the signal preprocessing module continuously monitors the communication channel, and when the receiving transducer sends a wake-up signal, it preprocesses the received wake-up signal and then sends it to the single-chip microcomputer module; the single-chip microcomputer module judges the pre-processing result according to the preset voltage threshold, and when the pre-processed wake-up signal exceeds the preset voltage threshold, it judges the validity of the pre-processed wake-up signal and generates two signals , one path is an interrupt signal for waking up the receiving node, and the other path is a signal for identifying and processing the preprocessed wakeup signal. The invention can be widely used in 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 energy consumption and wide detection range can be widely used in communication equipment with different signal requirements in underwater acoustic environments, while improving the detection performance of the wake-up circuit, further reducing the energy consumption of the circuit, thereby improving the energy utilization rate of the entire system

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