Vector sensor unit for underwater monitoring network

Abstract

The invention relates to a vector sensor unit for an underwater monitoring network. The vector sensor unit comprises a vector hydrophone, a vector detector and a corresponding signal processing module. The vector hydrophone comprises a sound pressure hydrophone and an accelerometer and is used for receiving underwater acoustic signals in the sea; the vector detector comprises a pressure detector and an acceleration detector and is used for acquiring seabed earth sound signals; the signal processing module has the functions of signal amplification, smoothing, sampling and communication and is used for completing signal processing and transmission. The vector sensor unit can be used for measuring underwater acoustic signals and earth sound signals in the sea simultaneously, measurement information is richer, measurement results are more reliable, and the vector sensor unit can be used for underwater guarding of ports, navigation channels and coasts, earthquake and tsunami warning, seabed oil and gas resource exploration, marine biological resource survey and other aspects.

Description

technical field [0001] The invention relates to a vector sensor unit, in particular to a vector sensor unit which can be used in an underwater monitoring network and can simultaneously acquire underwater acoustic signals and seabed vibration signals. Background technique [0002] The underwater listening network is a sensor network composed of a series of underwater detection nodes, which are generally divided into fixed and mobile. It is mainly used for military investigation, port channel warning, ocean observation, etc., and has very important strategic value. In recent years, although my country is vigorously promoting the construction of a networked underwater warning system and ocean observation network, compared with foreign countries, there is still a certain gap between my country's underwater networked countermeasure system and its operation. They are mainly located in my country's near-shore or near-sea areas, lack deep-sea countermeasure capabilities, and the unde...

AI Technical Summary

Problems solved by technology

At present, submarine seismometers (US13109794, ZL201110278604.9) are usually used in fixed-type geoacoustic detection on the seabed. Although this sensor can obtain three-dimensional vibration information of the seabed and sound pressure information of the water body, this method has short working time and few measurement points , so the amount of information obtained is relatively limited

Images