Method for measuring and calculating length, width and approximate volume of imported materials and program product

Abstract

The invention discloses a method for measuring and calculating the length, width and approximate volume of an imported material and a program product. The length and the width of a material are measured, the shielding size of the material in the direction perpendicular to the conveying direction is measured through a transverse measuring grating installed at the position of a guide-in conveyor, and the length and the width of the material are measured and calculated according to the maximum value of the material outline, size feature points, length-width ratio relation judgment and the like. Aheight measuring grating is added to form a rectangular grating group; tomography measurement is carried out on the section sections in the Y direction and the Z direction to obtain the projection area and the shading height H of the material passing through a small-section section on the conveyor belt surface in the calculation period, the volume of the small section-section - where the materialpasses through in the period is calculated, and the small-section section- in the material measurement period T is accumulated to calculate the approximate volume. Program products of the calculationmethod are executed by a processor in the controller, the size and approximate volume of the materials can be reliably obtained, and guarantee is provided for accurate and efficient operation of thewhole sorting conveying line.

Description

technical field [0001] The present invention relates to the technical field of automatic sorting in the logistics conveying system. It is a technology based on photoelectric detection and industrial programmable controllers. and a calculation method for approximate volume measurement, in particular to a measurement calculation method and a computer program product for the length, width, and approximate volume of imported materials. Background technique [0002] In the current automated logistics sorting and conveying system, there are often multiple sorting and conveying units arranged. The control system needs to accurately control the import and export of materials between these units. Scenarios, such as Tilt-Tray Sorter tilting plate sorter, Cross-Belt Sorter cross-belt sorter and other conveying system material introduction units, when controlling the merged conveying of these systems, master the accurate and reliable size information of the length and width of the mater...

AI Technical Summary

Problems solved by technology

[0003] In order to ensure the controllable conveying of the sorting and conveying unit in the rear stage, the materials conveyed on the inducting conveying line are placed and conveyed in a posture parallel to the running direction of the main conveying line, and in order to ensure that the materials are accurately conveyed in the sorting and conveying section of this stage For export and import at the next level, it is necessary to measure and calculate the size of these materials whose length and width directions are inconsistent with the direction of the conveying line on the conveying section of this stage. Factors determine that the measuring grating used for detection can only be installed perpendicular to the importing direction, which requires a certain calculation and processing of the collected data of the measuring grating before it can be used as the size data of the material for import and export control. At present, the commonly used calculation methods of this type of system are not real-time enough for data acquisition, the calculation method is complex, and the amount of programming and calculation is large. There are certain deficiencies in engineering applications, which cannot meet the control application of control versatility and fast and convenient acquisition of material size data. need

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