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A distance measuring method for the real-time distance between the side double-section springboard and the wharf

A ranging method and springboard technology, applied in the direction of ships, etc., can solve problems such as false alarms, laborious, unreliable, etc.

Active Publication Date: 2021-10-08
708TH RES INST OF CSSC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition to relying on laborious and unreliable manual observations, the real-time monitoring of this distance also uses ultrasonic sensors. The ultrasonic sensors are installed at the outer end of the backboard of the first gangplank. The part is often wading. At this time, the distance measured by the sensor is the distance from the backboard of the springboard to the water surface, which is smaller than the actual distance, resulting in false alarms.

Method used

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  • A distance measuring method for the real-time distance between the side double-section springboard and the wharf
  • A distance measuring method for the real-time distance between the side double-section springboard and the wharf
  • A distance measuring method for the real-time distance between the side double-section springboard and the wharf

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0032] figure 1 and figure 2 is the computational geometry model of the present invention, for the case of the starboard side gangway, see figure 1 and figure 2 . It shows the distance measuring method used to calculate the real-time distance between the side double gangway and the wharf according to the present invention, which is a preferred embodiment, including:

[0033] Step S1: The user inputs the slope λ of the wharf 30 (for a flat wharf, λ=0).

[0034] Step S2: Use the draft sensors set on the left and starboard sides of the ship to obtain the draft values ​​of the left and starboard sides of the ship in real time, and set them as T1 and T2 respectively. According to the lateral distance T3 of the draft sensors on the left and starboard sides, the real-time heel angle θ of the ship...

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Abstract

The invention discloses a distance measuring method for the real-time distance between the double-section gangway and the wharf, comprising: using the real-time acquired draft on both sides of the ship and the opening angle of the gangway, the user inputs the slope of the dock, and calculates the first section of the double-section gangway The real-time minimum distance between the backplane and the dock surface. The invention is generally applicable to fixed flat wharves and slope wharves, does not need additional monitoring equipment, has reliability and convenience, and can effectively improve the safety of loading and unloading operations.

Description

technical field [0001] The invention relates to a method for measuring the real-time distance between a side double-section springboard and a wharf, relates to the technical field of safety technology for roll-on and roll-off operations at wharves of large roll-on ships, and belongs to the technical field of ship design. Background technique [0002] Ro-ro ships usually have a side springboard in the vehicle garage. When the side of the ship is docked at the dock, the springboard opens the dock to form a vehicle roll-on transfer channel between the dock and the vehicle garage. In order to improve the tidal level adaptability of the gangway, the side gangway usually adopts a double-section gangplank to increase the length of the gangway. A gangway hinged. Due to the limitation of the line shape of the backboard, the springboard of the first section cannot be docked at the pier. When vehicles pass through the pier on the springboard, it is necessary to keep a certain safe dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B79/10B63B79/30
CPCB63B79/10B63B79/30
Inventor 葛俊波陈骏生彭江丰王果刘靖峤姜圣俊朱一鸣
Owner 708TH RES INST OF CSSC