Ore Quantity Detection Device and Method of Dump Truck Used in Open-pit Mine

Abstract

The invention discloses an ore volume detection device and method for a self-unloading truck used in an open-pit mine. The light box is set on the ground horizontally along the roadway, the light curtain vertical beam is arranged on both sides of the roadway along the vertical direction, the light curtain beam is arranged on the top of the light curtain vertical beam along the horizontal and longitudinal direction, and the upper middle of the light curtain beam is set The red light box, light curtain vertical beams, light curtain beams and the bottom driveway constitute the light curtain door. The cursor is mounted on the top plane of the side panel of the carriage. The camera is set in the middle of the bottom of the shading booth. On the industrial computer at the bottom of the shed, laser light curtains are used to assist imaging and image recognition of the ore profile of the carriage. After image acquisition, image correction, image extraction, image segmentation and calculation of the area of ​​the green light curtain, the ore volume of the carriage is obtained. The structure is novel and reliable. Practical and economical.

Description

technical field [0001] The invention relates to an ore volume detection device and method, in particular to an ore volume detection device and method for an open-pit mining dump truck suitable for truck transportation 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. It has the characteristics of heavy weight, heavy load, and large volume, and is responsible for transporting ore and rock and soil. important task. [0003] Ore volume is an important parameter to measure the efficiency of mining dump trucks, the main basis for enterprises to formulate reasonable production and soil discharge tasks, and one of the key indic...

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Problems solved by technology

[0004] However, the existing research still has the following problems: first, the method of estimating the ore volume by manual inspection obviously has a large error; The width and height of the vehicle are designed to limit the height and width of the vehicle, lack of resolution of the details of the vehicle outline, and the accuracy of the estimated ore volume is poor; third, the laser radar scan mainly uses a point light source to emit a laser beam. Detecting the reflected laser beam for ranging is limited by the working principle. The incident angle of the laser beam and the reflection characteristics of the target have a great influence on the result of the laser radar ranging. Therefore, the laser ranging is performing a single point on the target. The accuracy of distance measurement is high, but when scanning three-dimensional targets, especially for targets with obvious diffuse reflection characteristics such as car ore, it is difficult to guarantee the angular resolution in three-dimensional space, so it is difficult to detect ore in space. The accuracy of measurement is limited, and if multiple lidars are used to form a high-density radar array or a large-scale high-angle resolution three-dimensional lidar is used to scan mining trucks, it will lead to poor economics; fourth, the use of laser ranging and The combination of binocular vision distance measurement and the fusion of the point clouds obtained by the two can improve the recognition accuracy of the outer surface of the vehicle, which is essentially a redundant distance measurement, with high hardware investment and complex fusion algorithms. The economy and real-time performance of the application are not high

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