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Method for detecting wearing of protective equipment before miner goes down a well

A technology for protective equipment and detection methods, applied in image analysis, image enhancement, instruments, etc., can solve the problems of cumbersome process, large color feature sensitivity interference, large calculation amount, etc., so as to improve detection accuracy and reduce background interference. Effect

Active Publication Date: 2019-08-16
CHINA UNIV OF MINING & TECH
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Problems solved by technology

Chinese patent CN107679524 finds out the motion area by calculating the gray value difference between two frames, defines the head area of ​​the motion area, and judges whether to wear a safety helmet in the HSV color space. Due to the strong sensitivity of the color feature and the large background interference and the process The amount of cumbersome calculation is large, which can easily lead to serious misjudgment, so it is not conducive to practical application; the existing research technology is mainly aimed at the detection of wearing helmets, and miners need to wear a variety of protective equipment in the construction area, so the simple detection of wearing helmets cannot meet the requirements. practical application

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  • Method for detecting wearing of protective equipment before miner goes down a well
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  • Method for detecting wearing of protective equipment before miner goes down a well

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Embodiment Construction

[0024] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0025] Such as figure 1 , figure 2 with image 3 As shown, a detection method for a miner to wear protective equipment before going down the mine, comprising the following steps:

[0026] a: Collect video sequences from the video surveillance equipment in the mine entrance monitoring area in real time and unify the image size of all video frames.

[0027] b: Collect the training data set of the pedestrian recognition classifier. The HOG feature extraction method used to identify pedestrians is to grayscale the image, and use the Gamma correction method to standardize the color space of the input image, where I(x,y)=I(x,y) gamma ; Then calculate the gradient of each pixel,...

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Abstract

The invention discloses a method for detecting wearing of protective equipment before a miner goes down a well. The method comprises the following steps of: a, acquiring a video sequence from video monitoring equipment in a mine entrance monitoring area in real time; b, extracting corresponding video frames in the videos of the monitoring devices; and c, calculating the relative spatial distance information between each protection device in the video and the wearing position of the miner for the acquired front and rear groups of video frames; and d, detecting whether the protection equipment is complete for the video frame, if not, sending an alarm to a monitoring center, and then turning to b to continuously realize wearing detection of the miner protection equipment; and e, if the protective equipment is complete, judging whether the miner wears the protective equipment according to the detected spatial distance between the protective equipment and the miner wearing equipment, if theminer wearing the protective equipment is not standard, giving an alarm, and then turning to the step b to continuously realize wearing detection of the miner protective equipment. The method effectively solves the problem that in a 2D image, only gray pixels of a local HSV space are detected to determine whether a protection device is worn or not.

Description

technical field [0001] The invention relates to the technical field of mine production, in particular to a detection method for a miner wearing protective equipment before going down a mine. Background technique [0002] In mine production, protective equipment is a guarantee for the lives of miners, which can effectively reduce or prevent damage to miners caused by external dangers. However, even with the repeated emphasis of the mine safety code, there are still some miners who do not abide by the rules and do not wear protective equipment when going down the mine, which increases the risk of operation. Because non-mining personnel do not understand the operation process and related rules and regulations, it also increases potential safety hazards. However, the mine environment is harsh and the scene is complex. It is mainly through observing the video surveillance screen or arranging personnel inspection at the wellhead. This is not only inefficient but also causes safet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246G06K9/00
CPCG06T7/251G06T2207/20081G06T2207/10016G06T2207/30196G06V20/46
Inventor 仝泽友丁恩杰侯晓晴冯仕民
Owner CHINA UNIV OF MINING & TECH
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