A multifunctional submarine seismograph with real-time data transmission and its application method

Abstract

The present invention provides a multifunctional submarine seismograph of real-time data transmission and a usage method thereof. The submarine seismograph comprises an instrument cabin and a base station connection rack, the base station connection rack is located at the lower side of the instrument cabin, is fixedly connected with the instrument cabin via locking bolts, adopts a lower radiation three-legged structure, and is coupled with the seabed via a base station connection rack coupling unit. According to the present invention, by adopting an advanced underwater posture control unit, an advanced collector bandwidth spread spectrum technology and a software and hardware design scheme specially applied to the real-time data transmission, a real-time communication function of the multifunctional submarine seismograph of the real-time data transmission under the water is realized, the problems of low reliability, low data speed, high power consumption, etc., in the underwater communication of a conventional product are overcome effectively, and the multifunctional submarine seismograph and the usage method thereof are suitable for the shallow sea geological observation, a sea quake monitoring system and the marine ecological environment long-term monitoring.

Description

Technical field [0001] The invention relates to the field of geophysical exploration, in particular to the field of ocean exploration, and in particular to a multifunctional seabed seismograph with real-time data transmission and a use method thereof, which adopts the field of marine seismic observation technology and underwater acoustic propagation technology. Background technique [0002] A seabed seismograph is a seismic observation system in which geophones are placed directly on the seabed. Roughly speaking, submarine seismographs can be divided into sink-floating submarine seismometers and submarine seismometers based on real-time data transmission (hereinafter referred to as multifunctional submarine seismometers with real-time data transmission). [0003] my country has made breakthroughs in the development of sink-floating subsea seismographs. The Institute of Geology and Geophysics of the Chinese Academy of Sciences has successfully developed sink-floating high-frequency ...

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Problems solved by technology

[0008] In the original real-time data transmission multifunctional submarine seismograph, due to the limited frequency bandwidth, a seven-channel collector system is used to collect seismic signals of different frequency bands respectively. cost and assembly complexity

And the fixed device design of the original real-time data transmission multifunctional submarine seismograph follows the sinking coupling frame design of the sinking and floating submarine seismograph, which adopts the fuse recovery type, because the sinking coupling frame design of the sinking and floating submarine seismograph is more Considering the effectiveness of its recovery and release, for the application environment of fixed seabed collection stations, its structural design has shortcomings such as weak coupling stability, difficult construction and layout, and inability to self-adjust according to seabed conditions.

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