An ultra-long standby underwater acoustic transponder system and its response method

Abstract

The invention discloses an ultra-long standby water sound responder system and a responding method thereof. The system comprises a simulating receiving preprocessing module, a single-chip microcomputer attending and control module, a digital signal processor module, a transmission circuit module, a sending and receiving combined energy transducer, and a power supply management module. A simulating receiving preprocessing module conducts preprocessing of a signal transmitted by a sound head and sends the signal to the single-chip microcomputer attending and control module which detects a first wake-up signal transmitted by the sound head and controls the digital signal processor module to work or to the digital signal processor module which detects a second wake-up signal transmitted by the sound head and solves a positioning signal transmitted by the sound head. The system not only builds a hardware foundation achieving a signal twice wake-up mode but also redesigns a signal transmitting form and mode. When wake-up is realized, the method ensures that the system is in a low-power-consumption mode during a transmission idle period, so that the system power consumption is greatly reduced, and the standby time of the system is effectively extended.

Description

technical field [0001] The invention belongs to the technical field of ocean detection and relates to an underwater acoustic transponder, in particular to an ultra-long standby underwater acoustic transponder system and a response method thereof. Background technique [0002] Underwater positioning and navigation technology is the basic premise of all marine development activities and marine high-tech development. The development of the marine field and military needs have promoted the development of underwater high-precision positioning technology. The ultra-short baseline acoustic positioning system is used in marine exploration, marine development and It has a wide range of applications in the military field. In the ultra-short baseline underwater acoustic positioning system developed by our company, the underwater acoustic transponder is a key component of the underwater acoustic positioning system. It uses digital signal processing technology to complete the data proces...

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Problems solved by technology

3) The power supply of the underwater acoustic transponder is relatively complicated. Traditional underwater acoustic transponders generally use batteries connected in parallel to form a battery pack to supply power to the entire system. When the voltage of the battery pack drops below the working voltage of the digital core processing board, the whole system will not work normally. However, there is still power remaining in the battery pack at this time, so that the power of the battery pack cannot be fully utilized to achieve a longer standby time of the transponder

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