A method of heavy measurement of ship loading based on the sonar system

A measurement method and sonar technology, which are used in measurement devices, re-radiation of sound waves, radio wave measurement systems, etc., can solve the problems of inability to accurately obtain the distance to the hull surface, insufficient directivity, and influence of measurement accuracy, and achieve small deviation, The effect of reducing the difficulty and intensity of operation and improving efficiency

CN107554719BActive Publication Date: 2019-03-01安徽金海迪尔信息技术有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-03-01

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Abstract

The invention discloses a ship load-carrying measuring method based on a sonar system. Firstly, the sonar system is adopted to scan positions of all points of the bottom of a ship body, then the scanning data of all points of the bottom of the ship body is sent to a host computer, and the host computer adopts the modeling volume-obtaining algorithm to build a three-dimensional model of the underwater part of the ship body and calculates the drainage volume of the ship body, so that the drainage weight is obtained, and finally, the ship load-carrying is calculated according to the buoyancy law.According to the ship load-carrying measuring method based on the sonar system, the independent integrated sonar system is adopted for ship body scanning, then modeling is conducted and the ship load-loading is calculated, the scanned data is accurate, and the ship volume precision is high after modeling, so that more accuracy of the measured data of the ship load-loading is guaranteed.
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Description

technical field

[0001] The invention relates to the field of ship load measurement, in particular to a ship load measurement method based on a sonar system. Background technique

[0002] The most commonly used method in the market is to measure the weight of the ship by observing the waterline. This method requires the observer to have certain professional knowledge and needs to cooperate with the hydrostatic curve. It is not only difficult to read but also difficult to read accurately. Therefore, this method can only deal with occasions where the accuracy is generally not high.

[0003] In addition, it has been proposed to use a small ultrasonic module installed underwater or a laser array device to scan the hull to obtain the displacement volume, (quoted from a patent: a ship displacement measurement device and its measurement method; Patent No.: CN 101216338A), but the small Ultrasonic modules and lasers are highly susceptible to the influence of water pressure and water...

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] A method for measuring the load of a ship based on a sonar system. First, the sonar system is used to scan the position of each point on the bottom of the hull. The arrangement direction is the Y axis, and the Z axis is established in the vertical upward direction, so as to locate the points on the bottom surface of the ship to the three-dimensional coordinate points of the space Cartesian coordinate system, obtain the scanning data of the ship, and then...