Method and system of granary grain storage volume measurement

Abstract

The present invention discloses a method and system of granary grain storage volume measurement. The method comprises a step of (S1) obtaining at least one point cloud image obtained by scanning at different position in a granary, (S2) carrying out image registration on the point cloud image so as to obtain a target point cloud image, and (S3) calculating the first volume occupied by the target point cloud image and a difference between a second volume of the granary in an empty state obtained in advance and the first volume so as to obtain the grain storage volume in the granary. According to the method, through obtaining the point cloud images in the granary at different positions of the granary such as each corner and carrying out image registration and connection of all obtained point cloud images, a uniform point cloud image in the granary is obtained, and thus the grain storage volume in the granary is calculated. The completion of the images in the granary is ensured by obtaining uniform point cloud images, the precision of measurement is improved, and the grain storage volume of the granary especially a large volume granary can be rapidly and accurately calculated.

Description

technical field [0001] The invention belongs to the technical field of measurement, and in particular relates to a method and system for measuring the volume of stored grain. Background technique [0002] Efficient, accurate and safe methods of measuring grain reserves are the focus of a high-quality grain reserve supervision system and the key to safeguarding national interests and food security. The calculation of the traditional grain storage in the granary usually relies on the statistical monitoring method of clearing the warehouse and checking the warehouse. Generally, steel tapes and other length measuring tools are used to measure. By measuring the size of the grain pile and calculating the volume of the grain pile according to the geometric shape of the grain pile. This method consumes a lot of manpower and material resources, and cannot guarantee the food safety when clearing warehouses and checking warehouses. Moreover, due to the irregular shape of grain piles, u...

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Problems solved by technology

However, these methods are limited by the size of the granary and the accuracy of the acquisition equipment. When the granary is large, it is impossible to accurately obtain the image inside the granary, so it is impossible to accurately obtain the complete structure of the granary and measure the volume of the grain pile in the granary.

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