Measurement method of volumes of goods

Abstract

The invention discloses a measurement method of volumes of goods. The method comprises following steps of using a two-dimensional laser scanner to acquire profile angles and distance information of a loaded vehicle and an empty vehicle; determining running direction and position information of the vehicles; carrying out reconstruction processing on the profile angles and distance information of the loaded vehicle and the empty vehicle, angle echo information and the running direction and position information of the vehicles; by use of the point cloud filtering method, processing the acquired cloud point data of the loaded vehicle and the empty vehicle, and extracting three-dimensional point cloud data of a goods carriage; and based on the calculus algorithm, by use of a method for constructing a triangular plane, processing points in the point cloud data of the loaded vehicle and the empty vehicle, ad obtaining the volume information of the loaded vehicle and the empty vehicle. According to the invention, the measurement method is free from harmful effects caused by the resolution, the film speed, the distortion of a lens, the installation position and the environmental factors of a front end image acquisition device; the acquired data serves as the direct measurement data; and the measurement method is advantaged by high result accuracy, timeliness, objectiveness and vividness, and is worthy of promotion.

Description

technical field [0001] The invention relates to the technical field of cargo volume measurement, in particular to a cargo volume measurement method. Background technique [0002] As cargo owners continue to strengthen the quality of heavy-duty train bulk cargo transportation, the requirements for the measurement accuracy of the cargo in the C80 train compartment and the shape of the car body are getting higher and higher. The unloading machine room responsible for unloading tasks is the most important link for goods to enter the yard. Therefore, it can be considered that the final quantity of goods is determined by the amount of materials dumped by the unloading machine room. Usually, track scales and image acquisition equipment are installed at the entrance and exit of the unloading machine room. When the train enters the unloading machine room for dumping, the corresponding overweight weight and image data are provided as the basis for quality judgment. [0003] In the cu...

AI Technical Summary

Problems solved by technology

This method is limited by the resolution, sensitivity, lens distortion, installation location and other factors of the image acquisition equipment, resulting in poor accuracy of the method, and the obtained goods are in the form of pictures, which cannot be quantitatively determined

At the same time, it is greatly affected by environmental factors, such as smog, illuminance, dust, water vapor, etc., which makes the detection results of this method unsatisfactory.

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