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Ship cargo weight determining method and device

A ship and weight technology, applied in the field of ship cargo weight determination methods and devices, to achieve the effects of avoiding subjective errors, good practicability, and improving measurement accuracy and work efficiency

Active Publication Date: 2018-08-21
英飞智信(北京)科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for determining the cargo weight of a ship, so as to overcome the shortcomings of the above-mentioned traditional manual ship weighing method

Method used

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  • Ship cargo weight determining method and device
  • Ship cargo weight determining method and device
  • Ship cargo weight determining method and device

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0066] Please refer to the attached figure 1 , is a schematic flow chart of a method for determining the cargo weight of a ship provided in Embodiment 1 of the present invention. The method is applicable to the scene of weighing cargo loaded on a ship, and the method is executed by a device for determining the cargo weight of a ship. It can be realized by software and / or hardware, for example, it can be integrated inside the ship management system. The method specifically includes the following steps:

[0067] S101. Acquire multiple waterline images.

[0068] It should be noted that the waterline refers to the boundary line between the hull and the water surface when the ship is submerged in water. With the waterline as the boundary, one side of the waterline is the hull exposed to the air, and the other side is the hull submerged in the water. The waterline image refers to an image including the hull, ship gauge, water surface and waterline. Under natural conditions, the ...

Embodiment 2

[0077] like Figure 2a As shown, the method for determining the ship's cargo weight provided by Embodiment 2 of the present invention is based on the technical solution provided by Embodiment 1, and further optimizes step S101 "obtaining multiple waterline images". Explanations of terms that are the same as or corresponding to the above embodiments are not repeated here. Specifically, the following steps may be included:

[0078] S201. According to the fluctuation period of the water surface, select a video containing at least one fluctuation period from the waterline video as the video to be processed.

[0079] Among them, at least one can be one, two or more. It should be noted that the fluctuation period refers to the period corresponding from one peak to another peak or from one trough to another trough. The waterline video is taken by a camera, which includes the waterline and water gauge at the bow, stern and middle sides of the ship.

[0080] In one embodiment, pref...

Embodiment 3

[0090] like image 3 As shown, the method for determining the ship's cargo weight provided by Embodiment 3 of the present invention is based on the technical solution provided by Embodiment 1, and for step S102 "according to a plurality of said waterline images, determine multiple drafts of the ship. " Further optimization. Explanations of terms that are the same as or corresponding to the above embodiments are not repeated here. Specifically, the following steps may be included:

[0091] S301. Acquire multiple waterline images.

[0092] S302. Perform binarization processing on the plurality of waterline images respectively to obtain a plurality of binarized images.

[0093] Specifically, the binarization process is to set the grayscale value of the pixel on the target image to 0 or 255, that is, the entire image presents a visual effect of only black and white.

[0094] S303. Identify the scale value of the water gauge of the ship from each of the binarized images accordi...

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Abstract

The embodiment of the invention discloses a ship cargo weight determining method and device. The ship cargo weight determining method comprises the steps that multiple waterline images are obtained; according to the multiple waterline images, multiple immersion depths of a ship are determined; the immersion depth of a target is determined, and the ship cargo weight corresponding to the immersion depth of the target is determined from the multiple immersion depths, and the ship cargo weight corresponding to the immersion depth of the target is determined from a preset data bank according to thetarget immersion depth. By adopting the technical scheme, the technical problem is solved that large errors and long consumed time likely occurred due to water gauge scale reading through traditionalmanual visual inspection under the situation that the ship is disturbed and affected by stormy waves and waves are large, subjective errors brought by manual reading are avoided, the measurement precision and working efficiency are improved, and the ship cargo weight determining method is safe in operation, convenient, capable of saving time and good in practicability.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of ships, in particular to a method and device for determining the cargo weight of a ship. Background technique [0002] The water gauge of a ship is a scale drawn on the bow, stern and the two sides of the middle of the ship. It is used to estimate the draft of the ship and is an important basis for ship weight and ship stowage safety assessment. [0003] The traditional ship weighing method is to first use a video camera to shoot a large number of videos of the bow and stern of the ship and the two sides of the middle of the ship, including the waterline and the water gauge of the ship, and then manually read the scale values ​​​​in the video to determine the draft. , and finally calculate the weight of the ship. This method mainly relies on manual visual inspection to determine the draft, which is easily affected by subjective or objective factors. For example, when shooting a v...

Claims

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Application Information

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IPC IPC(8): B63B39/12G01G5/02G06K9/38
CPCG01G5/02B63B39/12G06V10/28
Inventor 罗陨飞吕晓龙姜英吴禹辰王洋张东星
Owner 英飞智信(北京)科技有限公司
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