A fault identification method for the missing round pin of the brake beam pillar of railway freight cars
A fault identification and railway freight car technology, applied in the field of image processing, can solve the problems of high manual detection cost and low machine detection accuracy, and achieve the effects of improving detection accuracy, reducing staff and increasing efficiency, and saving labor costs.
Active Publication Date: 2020-12-08
HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem of high cost of manual detection and low accuracy of machine detection for the loss of round pin of the pillar of the brake beam of the freight car, and provides a fault identification method for the loss of the round pin of the pillar of the brake beam of the railway freight car
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specific Embodiment approach 1
[0032] Specific implementation mode one, the following combination figure 1 This embodiment is described. The fault identification method for the loss of the round pin of the railway freight car brake beam pillar according to the embodiment is characterized in that the method includes the following steps:
[0033] Step 1. Collect the sample images of the round pins of the truck brake beam pillars to establish a training set;
[0034] 1. Collect samples
[0035] Capture sharp grayscale images with a high-resolution line scan camera. The principles for collecting images are as follows:
[0036] (1) Collect images of truck brake beam stations under various conditions such as rainwater, ice and snow, chalk graffiti, load leakage, mud stains, oil stains, black paint, and dust.
[0037] (2) Collect images of truck brake beam stations at different sites, different equipment, and at different times (different degrees of sunlight interference).
[0038] 2. Sample amplification
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A method for identifying the loss of a missing round pin of a brake beam pillar of a railway freight car, which belongs to the field of railways. The present invention solves the problem that the cost of manual detection of the missing round pin of a pillar of a freight car brake beam is high, but the accuracy of machine detection is low. . The present invention comprises: step 1, collecting the sample image of the round pin of the truck brake beam pillar to establish a training set; step 2, inputting to the RPN network and the Fast RCNN network for joint training, obtaining the final weight to construct the Fast RCNN network model; step 3, continuously collecting The picture of the round pin of the truck brake beam pillar passing the car, and preprocessing; step 4, input the pictures into the Fast RCNN network model in turn to determine whether there is a missing fault in the picture of the truck brake beam pillar round pin, if there is a missing fault, upload the alarm ; If it is normal, continue to judge whether there is a loss fault in the next picture according to the method of step 4, until all the pictures collected continuously are processed.
Description
technical field [0001] The invention belongs to the field of railways and relates to image processing technology. Background technique [0002] The loss of the round pin of the truck brake beam pillar is a failure that endangers driving safety. The detection methods currently used are divided into two categories. The first type is manual inspection, which accounts for a large proportion because of its high accuracy. The general process is: in the truck When entering the station for maintenance, actively collect pictures of the whole truck, and manually check the pictures of the whole vehicle, including checking whether the round pin of the brake beam pillar is missing. The car is small, so it has caused a great workload to the inspectors, and has caused serious waste of personnel. The second type is computer processing: when the truck is in the station for maintenance or during operation, the whole truck picture is collected, and the picture is input to the computer for pro...
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IPC IPC(8): G06T7/00
CPCG06T7/0004G06T2207/20081G06T2207/20084G06T2207/30164
Inventor 生田野
Owner HARBIN KEJIA GENERAL MECHANICAL & ELECTRICAL CO LTD