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A detection method for lack of bolts and nuts for hookpin safety hanger

A detection method and safety lifting technology, which is applied in the field of nut missing detection and coupler pin safety lifting bolts, can solve the problems of high cost and low efficiency, achieve high flexibility, improve operation quality, and improve operation efficiency

Active Publication Date: 2020-08-28
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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Problems solved by technology

[0003] Aiming at the problems of high cost and low efficiency in the fault inspection of missing coupler pins, safety hangers, bolts and nuts of freight trains in the existing purely manual image observation method, the invention provides a bolt and nut for coupler pin safety hangers Deletion detection method

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  • A detection method for lack of bolts and nuts for hookpin safety hanger

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] 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.

[0027] A method for detecting the lack of bolts and nuts of a coupler pin safety hanger in this embodiment, such...

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Abstract

A method for detecting missing bolts and nuts of a coupler pin safety hanger, which solves the problem of high cost and low efficiency in fault inspection of missing coupler pins, safety hangers, bolts, and nuts of freight trains in the existing purely manual image observation method problem, belonging to the domain of freight train fault detection. The invention includes: using the SSD neural network to roughly locate the bolts and nuts of the coupler pin safety hanger in the whole vehicle image to obtain a sub-image; marking the positions of the coupler pin safety hanger bolts and nuts in the sub-image to construct a training set; Use the MS-RCNN neural network to fit the training set to obtain the training weight parameters, load the training weight parameters into the MS-RCNN neural network and the SSD neural network, and construct the inference model; input the entire vehicle image of the freight train to be tested into the inference model In this method, it is detected whether the bolts and nuts of the freight train coupler pin safety hanger are missing, and if the confidence score of the missing bolts and nuts is higher than the set threshold, an alarm will be given.

Description

technical field [0001] The invention relates to a method for detecting lack of bolts and nuts of a coupler pin safety hanger, which belongs to the field of freight train fault detection. Background technique [0002] Whether the coupler pins, safety hangers, bolts, and nuts are missing is also an important part of the fault inspection of the whole truck. Missing fault checking, this method has problems such as high cost and low efficiency. In addition, for image observers, their work is boring, easy to slack, effective working time is limited, and it is prone to low efficiency, missing parts, false alarms and other situations. Therefore, automatic fault detection of trucks is of great significance. Contents of the invention [0003] Aiming at the problems of high cost and low efficiency in the fault inspection of missing coupler pins, safety hangers, bolts and nuts of freight trains in the existing purely manual image observation method, the invention provides a bolt and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06N3/08G06N3/04
CPCG06T7/0004G06N3/08G06T2207/20081G06T2207/20084G06T2207/30164G06N3/045
Inventor 孙晶
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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