Bolt and nut missing detection method for coupler yoke key safety crane

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, uniform operation standards, and improve operation efficiency

Active Publication Date: 2020-04-28
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...

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  • Bolt and nut missing detection method for coupler yoke key safety crane
  • Bolt and nut missing detection method for coupler yoke key safety crane

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Embodiment Construction

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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

The invention discloses a bolt and nut missing detection method for a coupler yoke key safety crane, solves the problems of high cost and low efficiency in fault detection of coupler yoke key, safetycrane, bolt and nut missing of a freight train in an existing pure manual image observation mode, and belongs to the field of freight train fault detection. The method comprises the following steps: coarsely positioning bolts and nuts of a coupler yoke key safety hanger in a whole vehicle image by using an SSD neural network to obtain sub-images; marking the positions of a coupler yoke key safetyhanger bolt and a coupler yoke key safety hanger nut in the subgraph, and constructing a training set; fitting the training set by adopting an MS-RCNN neural network to obtain training weight parameters, loading the training weight parameters into the MS-RCNN neural network and an SSD neural network, and constructing a speculation model; and inputting the whole train image of the freight train tobe detected into the speculation model, detecting whether the bolt and the nut of the freight train coupler yoke key safety crane are missing or not, and if the confidence coefficient score of missingof the bolt and the nut is higher than a set threshold value, giving an alarm.

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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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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