Ship draught detection method
A detection method and ship technology, which is applied in the direction of measuring devices, radio wave measurement systems, and equipment for reducing ship motion, etc., can solve the problems of limited image data, low accuracy of draft, etc., and achieve the effect of high precision
Active Publication Date: 2017-10-10
ZHEJIANG OCEAN UNIV
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Problems solved by technology
[0005] The embodiment of the present invention provides a ship draft detection method, which is used to solve the problem in the prior art that when the draft of a ship is obtained through a camera device, the accuracy of the calculated draft is not high due to the limited amount of image data collected.
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[0026] 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.
[0027] figure 1 It is a schematic flowchart of a ship draft detection method provided by an embodiment of the present invention. like figure 1 As shown, the method includes:
[0028] Step S1, setting a scale marking line on each side of the ship.
[0029] It should be noted that the proportional marking line is longitudinally arranged in the middle of the side of each ship; and the proportional marking line is a marking line with a fixed width.
[0030] In...
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The present invention discloses a ship draught detection method, which relates to the technical field of ship draught measurement. The method comprises: setting a scale marking line on each side of a ship; obtaining the water-surface ship images representing the ship part on the water from various sides through the use of an airborne remote sensor; obtaining the water-surface ship images in the same proportional relationship with the actual width corresponding to the scale marking line according to the width of the scale marking line of the water-surface ship images so as to determine the single-water-surface images from the various sides of the ship; and based on the distances from the ship tops to the water surface from the sampling positions of the various sides of the ship, determining the draught amounts at the sample positions corresponding to the various sides of the ship. According to the invention, through the utilization of the distances from a plurality of tops at the various sides of a ship to the water surface by an airborne remote sensor, it is possible to calculate the draught amounts. Or rather, through the remote sensing technology and image processing, the draught amounts are processed and calculated. As the acquired images are clear and the collected data are comprehensive, the accuracy for analyzing, processing and calculating the draught amounts is high.
Description
technical field [0001] The invention relates to the technical field of ship draft measurement, and more specifically relates to a ship draft detection method. Background technique [0002] In the inland waterway, some ships make the actual draft of the ship exceed the channel maintenance water depth for economic benefit, and do not take load reduction measures. This behavior is called "overdraft" of the ship. "Over-draft" of a ship means that the draft of the ship exceeds the maximum safe depth allowed by the lock. "Over-draft" is the most common and direct safety threat facing the operation of the lock at present. It may cause the ship to run aground, block navigation, and seriously Otherwise, the ship lock may be damaged, which poses a serious safety threat to the dam construction. [0003] In the prior art, the six waterlines on the outside of the hull are captured by camera equipment, and technical identification and corresponding calculation are performed to obtain the...
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Login to View More IPC IPC(8): G01S13/90G06K9/00G06K9/62B63B39/12
CPCG01S13/90B63B39/12G06V20/13G06F18/24
Inventor 淦学甄张洪刚池弘福
Owner ZHEJIANG OCEAN UNIV