An image-based method for early warning of open-pit mine transportation safety

Abstract

The invention belongs to the technical field of coal mine safety and radio communication, and discloses a surface mine transportation safety warning method based on images. The method is characterized in that the images shot by a CCD camera, signals received by a wireless receiving and transmitting module and warnings given by a voice system are organically combined in a triune mode and processed by a single-chip microcomputer, and danger vision features are extracted and displayed on a screen in a cab. Because vehicles appearing in a blind zone are displayed in the images in real time and are convenient to observe, it is avoided that when many vehicles exist in the blind zone, the vehicles in the blind zone are neglected due to coincidence of radar points. Because voices and the images are adopted for giving the warnings at the same time, people are warned about the vehicles appearing in the blind zone from the auditory sense as well as the visual sense, and accordingly the reliability and safety of monitoring the blind zone are greatly improved. Installation is convenient, the cost of a traditional warning system is lowered, the method can be adapted to various complex environments, operation is easy, response time is short, and accuracy and feasibility are higher.

Description

technical field [0001] The invention relates to an image-based early warning method for open-pit mine transportation safety, which belongs to the technical field of coal mine safety and radio communication, and specifically relates to a system that can instantly feed back the image of the blind area and perform an early warning for open-pit mine transportation safety when a dangerous source appears in the blind area of ​​a heavy truck. way. Background technique [0002] Due to the complex terrain of open-pit mines, the main mining methods are rock stripping, coal seam mining, and rock backfilling. Heavy-duty mining trucks can be applied to various complex terrains, and can closely cooperate with open-pit mining equipment such as electric shovels and excavators, and have a transportation cycle Short, low investment, flexible and fast, and simplified mining technology, it is widely used in open-pit transportation. However, the size of heavy-duty trucks is too large (take the ...

AI Technical Summary

Problems solved by technology

However, the size of heavy-duty trucks is too large (take the 930E-4 truck produced by Komatsu as an example, the dimensions of length, width and height are 15.6m×8.7m×7.4m), resulting in blind spots of 8 meters on the front side and 10 meters on the right side. If there is a vehicle within this range, the driver in the cab cannot see it, so it is easy to cause a collision between large vehicles or a large vehicle to crush a small vehicle due to blind spot vision, resulting in property damage or even casualties , so the monitoring and early warning of blind spots is very important

[0003] At present, large-scale open-pit mines use the combination of satellite GPS and radio frequency wireless communication technology in the anti-collision system of heavy trucks, and present radar-like distribution maps on the screen, but this cannot identify the models of vehicles in blind spots (such as command vehicles, gunpowder vehicles, bulldozers, sprinkler, etc.)

Because the screen is too small, it is difficult for the driver to take into account the radar points on the screen during driving. Sometimes there are many vehicles in the blind spot and the radar points overlap, and it is easy for the driver to ignore the invisible vehicles.

In this way, when a vehicle appears in the blind spot while driving, the driver cannot effectively warn and prevent it

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