Open-pit mine dump truck identity recognition device and method

Abstract

The invention discloses an open-pit mine dump truck identity recognition device and method. The device comprises a corner reflector positioning array, an ultrasonic radar array, a stand column, a corner reflector recognition array and a traffic lane. An ultrasonic radar array is installed at the top end of the stand column along the vertical direction, the corner reflector positioning array and the corner reflector recognition array are arranged at the top end of a carriage and are scanned by the ultrasonic radar array to analyze the positions and the number of the corner reflectors in the twoarrays. and an inherent binary code of a mining dump truck is obtained. By combining the ultrasonic radars with the corner reflectors, carrying out the binary coding according to whether the corner reflector is detected at a corresponding position, and carrying out the passive identity recognition on the mining dump truck, the open-pit mine dump truck identity recognition device and method is notinfluenced by the high dust and low visibility, and the communication between the mining dump truck and a detection device is not needed. The noisy point removal is carried out in a double-ultrasonic-radar positioning manner, and the angle correction is carried out through a two-dimensional corner reflector positioning array, so that the open-pit mine dump truck identity recognition device is novel in structure and good in economical efficiency, and is reliable and practical.

Description

technical field [0001] The invention relates to the technical field of automobile transportation in open-pit mines, in particular to an identification device and method for dump trucks used in open-pit mines. Background technique [0002] Mining dump trucks are the main equipment for vehicle transportation in large-scale open-pit mining areas at home and abroad, and are responsible for the important task of transporting ore and rock and soil. Mining dump trucks are mainly composed of the front, frame, compartment, wheels and attached power, braking, shock absorbing and buffering devices, etc., and have the characteristics of heavy self-heavy, heavy load and large volume. [0003] During the process of mine dump trucks carrying ore into the coal washing plant and rock soil into the dump site, the identity of the mine dump truck needs to be identified at the entrance and exit of the site, so that the company can reasonably arrange production tasks, and it is also an assessment...

AI Technical Summary

Problems solved by technology

[0004] However, the existing research still has the following problems: first, the use of manual duty is obviously a waste of human resources, and the efficiency is low; second, the use of machine vision recognition technology requires the camera to be able to clearly collect the logo, but the environment in the open-pit mining area is harsh , high dust, low visibility, easy to cause blurred camera imaging, and the logo itself is easily defaced, so the reliability is low; third, the use of short-distance wireless communication to identify RFID electronic tags requires the mining dump truck's own The signal transmitter is reliably paired with the signal receiver at the entrance and exit of the site in order to transmit RFID information. However, the mining dump truck has a huge body and is easy to cover the signal, resulting in low pairing efficiency, especially when multiple mining dump trucks are close together , it is easy to cause multiple readings and misreadings; fourth, using GNSS and other technologies to identify the identity and spatial coordinates of vehicles in the entire mining area is convenient for efficient management of open-pit mining areas, but the premise is that the GNSS signal is stable and the long-distance wireless communication such as GSM and 4G is smooth. However, the terrain of the open-pit mining area is complex, especially in the deep pit mining area, with a depth of hundreds of meters, coupled with factors such as mountain occlusion, the GNSS signal is weak, and the detection accuracy is low. Recently, it is difficult to distinguish the identity of the vehicle from the GNSS signal. At the same time, the open-pit mining area is generally sparsely populated and has a large area. The number of official mobile signal towers is limited, and it is difficult to ensure reliable long-distance wireless communication. It is expensive to build an independent long-distance wireless communication system in the mining area.

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