Material requirement planning (MRP) operation method and device

Abstract

The embodiment of the invention discloses a material requirement planning (MRP) operation method. The method comprises the following steps: sequentially searching whether materials in a bill of material (BOM) are in a preset material substitution group or not, wherein the material substitution group comprises mutually substitutable material information; directly performing material deducting operation on the materials if the search result is that the materials are not in the material substitution group; and searching a material substitution group corresponding to the materials if the search result is that the materials are in the material substitution group, performing material deducting operation on the materials according to a preset substitution rule in the material substitution group, and circularly executing until the material deducting operation of all materials in the BOM of a product is completed. By the method, the restriction of 'one-way material substitution representation method' in the prior art can be broken through, the possibility of dead circulation which often occurs in the 'one-way material substitution representation method' is prevented, the problem of low MRP operation efficiency in the prior art is solved, one-way, two-way or multi-way material substitution can be realized, and the efficiency of MRP operation is greatly improved; and the MRP operation on the materials can be performed according to the priority, and the flexibility of material substitution can be improved.

Description

technical field [0001] The invention relates to the field of electronics, in particular to an MRP calculation method and device. Background technique [0002] A product can sort out all the constituent materials and their affiliation and demand quantity that make up the product through the product structure. The structure of a product can be represented by files with standardized data formats such as structure trees and structure tables. In the files, the materials constituting the product, their required quantities, and their structural relationship must be stated. Such files are called materials. List (BOM, Bill of Material). [0003] Material Requirement Planning (MRP, Material Requirement Planning) refers to the subordination and quantity relationship of materials at each level of the product structure, with each product as the planning object, and the completion period as the time basis to reverse the plan, and differentiate the release of each material according to th...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the embodiments of the present invention is to provide an MRP calculation method and an MRP calculation device, by improving the data structure of material substitution, avoiding an infinite loop, and solving the problem of low MRP calculation efficiency in the prior art, Greatly improved the efficiency and flexibility of MRP operations

Images