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A Positioning Method for Radar Mast Hoisting in Water

A positioning method and radar technology, applied in transportation and packaging, ship construction, ship design, etc., can solve problems such as difficult operation of drawing geometric dimensions, risk of high-altitude operation, long distance measured by drawing ruler, etc., and shorten hoisting and positioning Time, positioning accuracy is high, and the effect of improving positioning and installation accuracy

Active Publication Date: 2018-07-20
GUANGZHOU SHIPYARD INTERNATIONAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) The method of pulling geometric dimensions is difficult to operate, and there are risks in working at heights;
[0006] (3) The distance measured by the ruler is long, and the positioning error is large

Method used

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  • A Positioning Method for Radar Mast Hoisting in Water
  • A Positioning Method for Radar Mast Hoisting in Water
  • A Positioning Method for Radar Mast Hoisting in Water

Examples

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Embodiment Construction

[0023] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0024] In this embodiment, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implying that the indicated technology number of features. Thus, a feature defined as "first", "second", "third" and "fourth" may expressly or implicitly include one or more of such features.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, the first feature being "on" the second feature includes the first feature b...

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Abstract

The invention discloses a positioning method for overwater hoisting of a radar mast. The positioning method includes the steps that S100, in a block stage, mounting and joining lines for the radar mast are assigned on a compass deck; S200, the radar mast is hoisted to the compass deck to be pre-positioned, after pre-cutting of the allowance, horizontal lines are assigned on circular pipe stand columns of the radar mast, positioning checking lines are assigned on cylindrical faces of the circular pipe stand columns, intersection points of the horizontal lines and the positioning checking lines are marked, and the first distance between each intersection line and the lower end face of the corresponding circular pipe stand column is measured and recorded; and S300, in a wharf stage, the radar mast is hoisted to the compass deck to be positioned, then the second distance between each intersection line and the lower end face of the corresponding circular pipe stand column is measured and recorded, if the absolute value between the first distance and the second distance is not greater than a set value, positioning is completed, and otherwise, the levelness of the circular pipe stand columns is adjusted till the absolute value between the first distance and the second distance is not greater than the set value. By means of the positioning method, the positioning installation precision of the radar mast can be improved.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a positioning method for a radar mast hoisted on water. Background technique [0002] The radar mast refers to the mast mainly used for installing the radar antenna. Generally, radars, sensors, antennas and other equipment with high precision requirements are installed on it, so the installation of the radar mast has certain precision requirements. In general, the radar mast is installed at the general section or berth / dock stage, and its installation reference plane is a static plane, and the reference line for installation and positioning is also static, so the installation accuracy is relatively easy to control. Under special circumstances, the radar mast can also be hoisted on the water at the wharf stage. The existing positioning method is to set up a positioning mark on the installation deck surface before the berth / dock is leveled, and use the method of drawing geomet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B9/00
CPCB63B71/00
Inventor 王任意黄榕强
Owner GUANGZHOU SHIPYARD INTERNATIONAL LTD
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