A kind of ship draft detection method
A detection method and ship technology, applied in the direction of measuring devices, radio wave measurement systems, equipment to reduce ship movement, etc., can solve the problems of limited amount of image data, low accuracy of draft, etc., and achieve the effect of high precision
Active Publication Date: 2020-04-10
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. Such as 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]...
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The invention discloses a ship draft detection method and relates to the technical field of ship draft measurement. The method includes: setting a proportional marking line on each side of the ship; obtaining the image of the surface ship on each side of the ship above the water surface through an airborne remote sensor; according to the width of the proportional marking line in the image of the surface ship, obtaining According to the distance between the top surface of the ship and the water surface at the sampling positions on each side of the ship, the draft at the corresponding sampling positions on each side of the ship is determined. The present invention calculates the draft by adopting airborne remote sensors to collect the distances between multiple sets of top surfaces and the water surface on each side of the ship, that is, adopts remote sensing technology and image processing to calculate and obtain the draft. Since the collected images are clear and the collected data The amount is comprehensive, so that the draft calculated by the analysis and processing has high precision.
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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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