Integrated multibeam echo sounding device

Abstract

The invention discloses an integrated multibeam echo sounding device, and belongs to the field of underwater survey. In particular, the device comprises the three parts, an underwater acoustic system, an overwater signal processing machine and a control computer. The device has the biggest characteristics that the information gathering specially devised in the underwater acoustic system together with a control unit and a synchronous signal creation unit achieves a real time gathering of sonar data, surface velocity data, attitude data, hydrostatic pressure and temperature data fully synchronously, meanwhile the data are transferred on a real time basis to the overwater signal processing machine and merge organically with the GNSS (Global Navigation Satellite System) and the pressure data, thereby achieving the simultaneous, isospace and isoattitude gathering and processing of all the data. The device can achieve high precision underwater surveying and mapping without the need to cooperate with extra sensors or extra calibration process when in use, can be widely applied to fields of underwater landform and various underwater structures, fine three dimensional mapping of pipelines and the like, and can rapidly achieve the measurement of underwater three dimensional landforms.

Description

technical field [0001] The present invention relates to the fields of underwater surveying, underwater surveying and mapping, etc., more precisely, relates to an integrated multi-beam system that can be widely used in the fields of underwater topography, various underwater structures, pipelines, etc. Sounding device. Background technique [0002] Bathymetry is a work of determining the height from the bottom point to the water surface and the plane position of the point. It is the central link of hydrographic survey and seabed topographic survey. Therefore, the original purpose of bathymetry is to provide the depth of the channel for ships to navigate and determine the navigation obstacles. location, depth and nature. With the development of bathymetry technology, the traditional bathymetry for the purpose of ensuring navigation has gradually developed into a relatively independent technical category, that is, underwater terrain survey. [0003] Underwater topographic surv...

AI Technical Summary

Problems solved by technology

The main reason is that the composition of the multi-beam sounding system is extremely complex. In addition to the multi-beam sounding sonar, additional positioning equipment, attitude measurement equipment, and sound velocity measurement devices are required. Complicated pre-test calibration and installation deviation and sonar draft, etc., so pre-test preparations are complicated and require high requirements for operators

[0006] For the fields of fine 3D surveying and mapping of underwater terrain, various underwater structures, and pipelines, especially the urgent needs in the field of mobile and fast underwater 3D terrain or target survey and measurement, single-beam depth sounders can no longer meet the needs. Due to the complexity of the equipment and the cumbersome operation of the traditional multi-beam echo sounder, its application is directly restricted. Therefore, there must be a method that does not need to cooperate with additional sensors and additional calibration procedures during use. A multi-beam sounding device that can realize the integration of high-precision underwater surveying and mapping

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