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    • 6. 发明授权
    • Method for part procurement in a production system with constrained
resources
    • 在资源有限的生产系统中部件采购的方法
    • US5970465A
    • 1999-10-19
    • US871567
    • 1997-06-04
    • Brenda Lynn DietrichGrace Yuh-Jiun LinRamesh Srinivasan
    • Brenda Lynn DietrichGrace Yuh-Jiun LinRamesh Srinivasan
    • G06Q10/06G06F17/60
    • G06Q10/06G06Q10/06312G06Q10/06314G06Q10/06315G06Q10/06375
    • A method for determining procurement for parts (P) in a production system having constraints comprising at least one of constrained resources (r.sub.i) and known maximum demands (d.sub.j). The method comprises two steps. Step 1 includes constructing a production planning decision space comprising independent sets of hyperplanes defined by decision variables (q.sub.j) corresponding to product quantities for products (j). The constructing step subsumes steps of expressing a potential usage of part (p) as a linear combination of production quantities (q.sub.j) based on bill of material usage rules; limiting the production quantities (q.sub.j) so that each is less than or equal to the maximum demand quantity (d.sub.j); and limiting the production quantities (q.sub.i) so that the usage of each resource (r) is based on bill of material and bill of capacity usage rates less than or equal to the availability of that resource. For each part p, the second step includes locating a region in the decision space corresponding to a high level of usage of part (p).
    • 一种用于确定具有约束资源(ri)和已知最大需求(dj)中的至少一个的约束的生产系统中的部件(P)的采购的方法。 该方法包括两个步骤。 步骤1包括构建生产计划决策空间,其包括由对应于产品(j)的产品数量的决策变量(qj)定义的独立的超平面集合。 构建步骤包括基于物料清单使用规则将部分(p)的潜在用途表示为生产量(qj)的线性组合的步骤; 限制生产量(qj),以使每个生产量小于或等于最大需求量(dj); 并限制生产数量(qi),以使每个资源(r)的使用基于物料清单和容量使用率单位小于或等于该资源的可用性。 对于每个部分p,第二步骤包括将对应于部分(p)的高级别使用的判定空间中的区域定位。