A non-contact hanging rope swing angle monitoring device

Abstract

The invention discloses a non-contact type monitoring device for the swinging angle of a lifting rope of a traveling crane. The non-contact type monitoring device for the swinging angle of the lifting rope of the traveling crane is provided with an image collecting unit and an image processing unit. The image collecting unit collects an original image of a lifting rope root portion and a fixed-length lifting rope section. The image processing unit comprises an image preprocessing module and an image processing module. The image preprocessing module generates a gray-scale image of the original image, and a lifting rope image with a background image removed is separated from the gray-scale image. The image processing module extracts an upper image, a middle image and a lower image of the lifting rope image. Start rows (j1b, j1e) and stop rows (jx1b, jx1e), in multiple pixel lines in the upper image, the middle image and the lower image, of the lifting rope image are worked out. The average angle values, in the upper image, the middle image and the lower image, of the lifting rope are worked out according to the start rows and the stop rows. The actual swinging angle of the lifting rope is obtained. The defects in the prior art are overcome, and the non-contact type monitoring device for the swinging angle of the lifting rope of the traveling crane is provided and can monitor the swinging angle of the lifting rope and give out an alarm when the swinging angle exceeds an artificially specified angle so as to remind workers to rectify the deviation of the lifting rope in time.

Description

technical field [0001] The invention relates to a non-contact monitoring device for the swing angle of a suspension rope. Involving patent classification B66 Hoisting; Lifting; Traction B66C Cranes; Load hanging elements or devices for cranes, capstans, winches or tackles B66C13 / 00 Other structural features or parts B66C13 / 16 Application of display, recording or weighing devices . Background technique [0002] During the hoisting process of the line hoist, the horizontal movement, artificial pulling, wind force, etc. will force the suspension rope to deviate from the vertical position, which will accelerate the wear of the suspension rope and even cause damage to the suspension rope, thereby causing safety hazards and increasing maintenance costs. , It is particularly important to monitor the swing angle of the suspension rope in real time, and to warn the operator in time to correct the deviation of the suspension rope when the safe working range is exceeded. [0003] In ...

AI Technical Summary

Problems solved by technology

[0002] During the hoisting process of the line hoist, the horizontal movement, artificial pulling, wind force, etc. will force the suspension rope to deviate from the vertical position, which will accelerate the wear of the suspension rope and even cause damage to the suspension rope, thereby causing safety hazards and increasing maintenance costs. , it is particularly important to monitor the swing angle of the suspension rope in real time, and to warn the operator to correct the deviation of the suspension rope in time when the safe working range is exceeded

[0003] In the prior art, mechanical contact monitoring devices are mostly used. The disadvantages are that the installation is complicated, the maintenance is extremely inconvenient, and there are many false alarms due to the lack of controllable channels, which affect the normal use of mobile cranes.

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