Import the measurement and calculation methods and program products of length, width and approximate volume of materials

Abstract

The invention discloses a method for measuring and calculating the length, width and approximate volume of imported materials and a program product. Measure the length and width of the material, use the horizontal measurement grating installed at the position of the import conveyor to measure the occlusion size of the material perpendicular to the conveying direction, and judge the material according to the maximum value of the material contour, size feature points, and aspect ratio relationship The length and width dimensions are measured and calculated. By increasing the height measurement grating to form a rectangular grating group, the tomographic measurement of the section section in the Y and Z directions is carried out, and the projected area and the shading height H of the material passing through the small section section on the conveyor belt surface within the calculation period are obtained, and the calculation is made. The volume of the small cross-section section that the periodic material passes through, and it is accumulated in the material measurement period T to calculate the approximate volume. The program product of the calculation method is executed by the processor in the controller, which can reliably obtain the size and approximate volume of the material, and provide guarantee for the accurate and efficient operation of the entire sorting conveyor 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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