53 results about "Material requirements planning" patented technology

A method and system for resource rationing which employs decision rules for the optimal allocation of supply and capacity over time that satisfy two key requirements (a) being consistent with accepted operational objectives (e.g. low inventory, short lead times, prioritized allocation of supply and capacity) and (b) allowing for the timely computation of a feasible production schedule. The method and system is generally characterized in that it is able to divide each of the priority ranked scheduled releases (Material Requirements Planning (MRP)) into “N” separate and smaller sized scheduled releases where the priority of each of the “N” releases may be equal to the priority of the original release. The “N” separate and smaller sized scheduled releases are sorted according to priority and then used to determine an optimal supply schedule for allocating resources including component supply and assembly capacity.

The methodology disclosed herein calculates the dates that product must come to stock for every component in the supply chain as needed to meet exit demands associated with a plurality of due dates and priorities. Every planned product stock is thus associated with multiple stock dates and associated priorities as is every planned manufacturing start and every shipment.

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.