Measuring device and method of dynamic ocean waves

Abstract

The invention provides measuring device and method of dynamic ocean waves. The device comprises two pressure sensors, a temperature sensor, an acceleration sensor, an inclination angle sensor, a signal conditioning unit, an AD conversion unit, a data storage unit, an RS485 communication unit, a power management unit and a digital signal processor. The invention has the core that the two pressure sensors are utilized for detecting the pressure in water, the depth at the zero crossing moment is derived according to the pressure-in-water computing formula described by a Bernoulli equation in fluid mechanics, the depths at other times except the zero-crossing moment are continuously estimated according to the data of the acceleration sensor and an angle sensor, the wave number and the wave height are computed according to the computing relational expression of the wave number and the wave height at the non-zero-crossing moment. The technical method not only has novelty and creativity, but also has simple structure and convenient manufacture and can be widely used for underwater robots, communication buoys and other diving sounding systems.

Description

technical field [0001] The invention relates to a dynamic measurement technology and device for sea wave parameters and water depth, belonging to the field of electronic information technology and the field of marine research and development. Background technique [0002] In marine engineering and marine scientific research, it is often necessary to know the local wave height, wavelength, and underwater depth of operating devices, especially the underwater depth of waves, which is difficult to achieve by traditional methods. Among them, wave parameters are often obtained through weather forecasts, and real-time measurement is very difficult. The underwater instantaneous depth can only be measured by the sounding device of the working tool itself. [0003] There are sonar measurement, pressure sensor measurement, laser sounding and GPS positioning sounding methods for the depth sounding of the underwater operation device from the water surface, and the application environmen...

AI Technical Summary

Problems solved by technology

However, when the bathymetry is close to the ocean surface, the measurement error is very large due to the influence of waves

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