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A self-calibrating relative heaving and sinking measuring system and measuring method of a ship

A measurement method and technology of measurement system, applied in measurement devices, ship safety, ships, etc., can solve problems such as inability to meet measurement and evaluation requirements

Inactive Publication Date: 2015-11-18
DALIAN UNIV OF TECH
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  • Summary
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  • Description
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Problems solved by technology

[0013] The above formula only considers the operation at a single frequency. In the case of complex sea conditions and various frequency components, the accuracy of the simple integral filter method is limited to a certain level and cannot meet the requirements of more accurate measurement and evaluation.

Method used

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  • A self-calibrating relative heaving and sinking measuring system and measuring method of a ship
  • A self-calibrating relative heaving and sinking measuring system and measuring method of a ship
  • A self-calibrating relative heaving and sinking measuring system and measuring method of a ship

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Embodiment Construction

[0031] Such as figure 1 , figure 2As shown, a ship self-calibration relative ups and downs measurement system includes a ups and downs measurement sensor A, a ups and downs measurement sensor B, a synchronous measurement unit, a relative ups and downs calculation and signal processing unit; two ups and downs measurement sensors are absolute pressure sensors, and two The ups and downs measurement sensors are arranged on the inner wall of the cylindrical sleeve, fixedly installed back to back and separated by a certain distance. The distance between the two is set according to the sensor model and actual environmental conditions. In this embodiment, it is preferably 100cm. The sleeve is installed vertically on the ship. The basic measurement signals output by the two floating and sinking sensors are amplified and then input to the synchronous sampling measurement unit. The absolute pressure change and the dynamic pressure difference change of the sensor calculate the floating ...

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Abstract

The invention discloses a self-calibration relative sinking and floating measurement system and a measurement method of a ship, and belongs to the technical field of ships and ocean platforms. The measurement system is characterized in that relative sinking and floating self-calibration is performed during measurement, and the actual relative sinking and floating amount is obtained according to a relationship formula of a reference micropressure difference and absolute pressure. The system and the method surmounts the traditional method of integral operation treatment taking vibrating and inertial sensors as cores, and have the characteristics of high testing accuracy, good stability, strong instantaneity, accurate calculation and the like, and the method is also suitable for measuring the similar ocean and inland river engineering ships, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of ship safety monitoring, and relates to a system and method for measuring the relative ups and downs of ships and equipment on water, in particular to a system and method for measuring the relative ups and downs of ships by using special sensing technology and algorithms. Background technique [0002] As a means of water transportation, ships have the advantages of large loading capacity and low cost, and their role in ocean shipping is becoming more and more prominent. The development of modern ships tends to be more and more large-scale and specialized, and various new large-scale ships have emerged, such as super large oil tankers, container ships, and LNG. With the increase of the size of the ship and the complexity of the operating conditions of the ship, the problem of safe operation of the ship is particularly prominent: due to the long-term operation of the ship in the harsh marine environment, man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/02B63B43/00
Inventor 喻言杜忠诚
Owner DALIAN UNIV OF TECH
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