Wave-measuring system and measuring method based on navigation mark body

Abstract

The invention discloses a wave-measuring system and measuring method based on a navigation mark body. The measuring system comprises a navigation mark body floating on the sea level, wherein a machinebox and a three-shaft magnetic force sensor fixed through a horizontal fixing plate are arranged in the navigation mark body; four tube measuring modules are arranged on the periphery of the outer bottom surface of the tube of the navigation mark body in a uniform distribution way; the axial line of the module tube is parallel to the axial line of the tube body of the navigation mark body; each measuring module respectively comprises one three-shaft acceleration sensor, one three-shaft angle speed sensor and a pressure sensor; a communication module, a control module, an operation module, a storage module, a GPS module and a power supply module are arranged in the machine box. According to the measuring method, the dynamic data of the navigation mark body per se under the wave effect andthe change dynamic data of the navigation mark body immersion depth are measured; after the two parts of data are accurately metered, the data is synchronously combined so as to obtain the wave real operation condition dynamic data. The measuring difficulty caused by nonuniformity of the motion law and the sea waves of a buoy wavemeter can be overcome; the measurement is more accurate.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a wave measurement system and a measurement method based on a navigation mark body. Background technique [0002] In recent decades, human beings have been exploiting and utilizing the ocean more and more, so the monitoring of the ocean environment is also extremely important. Among the many monitoring parameters of the marine environment, wave-related parameters are extremely important, and they play an important role in guiding safety in terms of maritime traffic safety and production operation safety. [0003] At present, there are several types of wave measuring instruments, and the buoy wave meter is one of the more common wave measuring instruments. Its measuring principle is as follows: a multi-degree-of-freedom sensor ( Including a three-axis acceleration sensor, a three-axis angular velocity sensor, a three-axis magnetometer) and a central processing unit, the central...

AI Technical Summary

Problems solved by technology

[0004] Although the existing buoy wave measurement system can be used, there are still the following disadvantages: the method can only accurately extract the wave height, period and wave direction data of the ocean wave on the floating carrier with good wave followability, and the wave followability is poor. If it is used on a floating carrier (such as a buoy), the extracted wave height, cycle and wave direction data will have large deviations, and even cannot be used

However, the primary task of the aid of navigation is to provide instructions for sailing ships, so it is usually required to have better stability, which is contradictory to the fact that the wave measurement requires the carrier to have better wave followability

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