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Gantry crane girder camber deformation compensation method and system and computer medium

A deformation compensation, crane technology, applied in neural learning methods, design optimization/simulation, load suspension components, etc., can solve the problems of linear encoder measurement error without compensation, large measurement error, and lifting height without compensation, etc., to achieve Optimize positioning accuracy and expand the effect of intelligence

Pending Publication Date: 2022-08-05
EUROCRANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing methods for measuring the camber change of the main girder of gantry cranes include: connectors, level gauges, and steel wire measurement methods. However, the above-mentioned measurement methods are affected by various factors such as instruments and the environment, and there is a gap between the measured value and the real value. Large measurement error; at present, the position detection and calculation only use the linear encoder to reduce the measurement error of the main girder arch to the position of the crane, there is no compensation for the lifting height, and there is no compensation for the measurement error of the linear encoder itself , which limits the positioning accuracy of the crane and the hoist

Method used

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  • Gantry crane girder camber deformation compensation method and system and computer medium
  • Gantry crane girder camber deformation compensation method and system and computer medium
  • Gantry crane girder camber deformation compensation method and system and computer medium

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Embodiment 1

[0047] refer to Figure 1-3 As shown, the present invention provides an embodiment of a method for compensating the camber deformation of the main girder 10 of a bridge gantry crane, and the method includes the following steps:

[0048] Step S1: Calculate the crown distance according to the first preset distance c and the second preset distance d

[0049] Step S2: According to the crown distance Δh and the lifting height h 1 Calculate the lifting height h 2 =h 1 +Δh;

[0050] Step S3: Generate the first measurement error e according to the neural network training method 1 , according to the step length to divide the code ruler to generate several division point positions d i , and then according to the split point position d i and ground position g i Generate the error e for each split point2[i] , and according to the split point error e 2[i] Generate the second measurement error e 2 ;

[0051] Step S4: According to the first measurement error e 1 and the upper ar...

Embodiment 2

[0071] refer to figure 1 , Figure 4 As shown, the present invention also provides an embodiment of the camber deformation compensation system for the main girder 10 of the bridge gantry crane, including:

[0072] The distance calculation module 4 calculates the camber distance according to the first preset distance and the second preset distance, and then calculates the actual hoisting height according to the camber distance and the hoisting height;

[0073] The error calculation module 5 generates a first measurement error according to the neural network training method, generates a plurality of segmentation point positions according to the step size segmentation code ruler, and then generates the error of each segmentation point according to the segmentation point position and the ground position, and generates the error of each segmentation point according to the segmentation point error. generating a second measurement error;

[0074] The compensation module 6 generates...

Embodiment 3

[0079] The present invention also provides a computer medium, where a computer program is stored on the computer medium, and the computer program is executed by a processor to realize the above-mentioned method for compensating the camber deformation of the main girder 10 of a bridge gantry crane.

[0080] The present invention also provides a computer, including the above-mentioned computer medium.

[0081] As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-...

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Abstract

The invention discloses an overhead and portal crane girder camber deformation compensation method and system and a computer medium, and the method comprises the steps: S1, calculating a camber distance according to a first preset distance and a second preset distance, and then calculating an actual lifting height according to the camber distance and the lifting height; s2, training the first preset distance and the second preset distance according to a neural network to generate a first measurement error, generating an error of each segmentation point according to the segmentation point position and the ground position, and further generating a second measurement error according to the segmentation point error; and S3, generating an upward arch angle after error compensation according to the first measurement error and the upward arch angle of the main beam of the crane, updating the actual lifting height according to the upward arch angle after error compensation, and updating the position of the crane vehicle according to the second measurement error. According to the invention, the camber change of the portal crane can be detected, calculated and compensated, and the positioning precision of a crane car and lifting is improved.

Description

technical field [0001] The invention relates to the technical field of crane equipment, in particular to a method, system and computer medium for camber deformation compensation of a main girder of a bridge gantry crane. Background technique [0002] In order to ensure the safety of the goods lifted by the bridge gantry crane, the main girder of the crane is designed with a preset upper camber. When the main girder is loaded, the camber will decrease. This camber change will affect the positioning of the crane and the lifting. interference. [0003] Existing methods for measuring the camber change of the main girder of bridge gantry cranes include: connecting device, leveling instrument and wire drawing method, but the above-mentioned measurement methods are affected by various factors such as instruments and environment, and there is a difference between the measured value and the real value. Large measurement error; at present, only the linear encoder is used for position...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/27G06N3/04G06N3/08B66C6/00
CPCG06F30/27G06N3/08B66C6/00G06N3/047G06N3/045Y02T90/00
Inventor 贾凯张程杨灿兴方线伟
Owner EUROCRANE
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