Offshore wave motion-based detection system and method

A technology of wave motion and detection system, which is applied in the direction of measuring the motion of open water sources, measuring devices, mapping and navigation, etc., and can solve the problems of complex structure and error of the control system.

Inactive Publication Date: 2016-10-26
QUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this active heave compensation control system and method based on wave trend judgment still has many deficiencies.

Method used

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  • Offshore wave motion-based detection system and method
  • Offshore wave motion-based detection system and method
  • Offshore wave motion-based detection system and method

Examples

Experimental program
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Embodiment 1

[0035] like figure 1 As shown, the detection system and method based on sea wave motion includes the following steps:

[0036] 1) Collect data on wave motion; use an acceleration detector to collect sea wave motion data, with a collection time interval st=0.01s, and a sampling frequency sf=1 / st=100Hz. In step 1), the acceleration detector is provided with an acceleration detection array, the acceleration detection array is provided with an accelerometer, and the accelerometer adopts a two-axis accelerometer or a three-axis accelerometer.

[0037] 2) Data analysis and identification: Amplify, filter and analog-to-digital conversion of the collected system, analyze and identify, and use frequency domain integration and Simpson time domain integration algorithms to obtain velocity and displacement for the measured acceleration, respectively, and measure the displacement. The three-point interpolation type derivation formula is used to obtain the velocity, and the obtained three ...

Embodiment 2

[0054] The structure and principle of this embodiment are basically the same as those of the first embodiment, and the difference is that: in the first embodiment, the signal conditioning module and the signal conditioning module both use 18 channels; in the second embodiment, such as figure 2 As shown, the signal conditioning module and the signal conditioning module both use 6 channels, and the industrial computer is connected with an electronic compass through a serial port. The electronic compass has a built-in three-axis magnetic field sensor and two-axis inclination sensor.

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Abstract

The invention provides an offshore wave motion-based detection system and method, belongs to the technical field of offshore detection and solves the problems that an existing system is complex in structure and easily generates certain errors. The offshore wave motion-based detection system and method comprise the following steps: 1), collecting wave motion data: collecting offshore wave motion data by using an acceleration detector in time intervals st of 0.01 s under a sampling frequency of sf=1 / st=100 Hz; 2), analyzing and identifying data; 3), mathematically describing an equation; 4), analyzing errors. The offshore wave motion-based detection system and method enable more effective compensation for ship wave motion and also enable reduced errors.

Description

technical field [0001] The invention belongs to the technical field of marine detection, and relates to a detection system and method based on marine wave motion. Background technique [0002] Ship and marine engineering equipment is one of the 16 major technical equipment strongly supported by the state, and its rapid and healthy development will become a new growth point for my country's national economy and drive the industrial development of the shipbuilding industry. With the increasing comprehensive national strength of our country, the development and utilization of marine resources in our country are increasing day by day. At the same time, marine operations are becoming more and more frequent. The supply at sea is an important logistical guarantee for the smooth operation of the sea. In terms of military use, supply at sea can improve the endurance and combat effectiveness of ships. Modern ships have long sailing times, a wide range of activities, and complex and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C13/00
CPCG01C13/002
Inventor 黄晓刚汤天浩王天真袁宽冯丰泽包启涵
Owner QUZHOU UNIV
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