Method for detecting inclined pulling and inclined hoisting of portal crane based on YOLOV3 algorithm

Abstract

The invention discloses a method for detecting inclined pulling and inclined hoisting of a portal crane based on a YOLOV3 algorithm, and belongs to the field of image target detection. The method comprises the following steps: respectively constructing data sets of a portal crane lifting hook and a lifted object, marking samples of the data sets, constructing a deep learning network architecture based on a YOLOV3 algorithm, training the data sets based on a YOLOV3 network, performing parameter adjustment on the network architecture according to a training result, and putting a video frame to be detected into the network for detection and judgment after adjustment is completed. Finally identifying and determining the poses of the lifting hook and the lifting object, automatically calculating the inclined pulling and inclined lifting angle of the portal crane according to a defined inclination formula, and comparing the inclined pulling and inclined lifting angle with a threshold angle to decide whether to give an alarm or not. According to the method, the poses of the lifting hook and the lifting object of the portal crane can be quickly positioned from the monitoring video, priori information such as the position of the portal crane does not need to be obtained, meanwhile, the characteristics of the lifting hook and the lifting object are fully learned through a YOLOV3 network structure, and the influence of complex outdoor environment factors on inclined pulling and inclined lifting detection of the portal crane can be solved; and meanwhile, the requirements of real-time performance and accuracy can be met.

Description

technical field [0001] The invention belongs to the field of image target detection, and more specifically, relates to a method for detecting a door crane crookedly pulling and obliquely hanging based on the YOLOV3 algorithm. Background technique [0002] The portal crane (also known as the gantry crane) is a bridge type crane whose bridge frame is supported on the ground track by the outriggers on both sides. Structurally, it consists of a mast, a cart running mechanism, a lifting trolley and electrical parts. Some gantry cranes only have outriggers on one side, and the other side is supported to run on the factory building or trestle, which is called a half-gantry crane. The door frame of the door frame is composed of upper bridge frame (including main girder and end beam), outriggers, lower beam and other parts. In order to expand the working range of the crane, the main girder can extend out of the outriggers to one or both sides to form a cantilever. A trolley with a...

AI Technical Summary

Problems solved by technology

[0005] At present, the detection of the slanted crane of the door crane at home and abroad mainly relies on manual observation, but this method has defects such as low precision and large lag, which is easy to cause safety hazards

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