Bottom-supported ADCP (Acoustic Doppler Current Profilers) deployment device and method based on attitude monitoring system

Abstract

The invention discloses a bottom-supported ADCP (Acoustic Doppler Current Profilers) deployment device and method based on an attitude monitoring system, and relates to the field of underwater attitude monitoring. The device comprises an attitude sensor and a signal receiver; the signal receiver is arranged on a ship deck; the attitude sensor is fixed on a bracket of a bottom-supported ADCP; the attitude sensor comprises a three-dimensional electronic compass, a watertight box and a communication module; the three-dimensional electronic compass is installed in the watertight box; the three-dimensional electronic compass is used for outputting attitude data of the bracket of the bottom-supported ADCP in real time, wherein the attitude data at least comprise a rolling angle, a pitching angleand an azimuth angle; and the communication module is used for sending the attitude data to the signal receiver. According to the bottom-supported ADCP deployment device based on the attitude monitoring system provided by the invention, the problem that a measurement result error is large or invalid due to too large inclination angle or rollover of the bottom-supported ADCP under the sea in the deployment process is solved; and the inclination degree of the bracket of the bottom-supported ADCP is monitored in real time in the deployment process, so that the situation that the inclination angle is too large or the bottom-supported ADCP rolls over is avoided.

Description

technical field [0001] The invention relates to the field of underwater attitude monitoring, in particular to a bottom-sitting ADCP deployment device and method based on an attitude monitoring system. Background technique [0002] Acoustic Doppler Current Profilers (English: Acoustic Doppler Current Profilers, referred to as ADCP) is an instrument that uses the acoustic Doppler effect to measure the velocity of a water flow profile. ADCP includes a self-contained ADCP. The self-contained ADCP is installed on the bottom of the water and is supported and fixed by a fixed bottom-mounted bracket. This type of bottom-mounted bracket is a relatively common and reliable installation method. The type ADCP itself is not easy to shake, can ensure the accuracy of data measurement, and is not easily affected by external natural conditions. After deployment, short-term detection and maintenance are not required. [0003] However, in the actual deployment process, due to the influence of...

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Problems solved by technology

[0003] However, in the actual deployment process, due to the influence of uncontrollable underwater factors such as complex seabed topography and ocean currents, or due to improper operation during the deployment process, the bracket of the bottom-sitting ADCP may not have a stable sitting posture. When the inclination angle of the seabed is too large or rolls over, the measurement results of the ADCP fixed on the bottom support will have large errors, and even cause the measured data to be invalid.

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