초록 ▼

A variable F (a, n) defined by Equation (1) (wherein k (a, n) is a constant set on a step P (a, n) which is the nth step of a product a, Tave (a, n) is an average wait time for the same step as the step P (a, n) which is obtained from the past processing results, Tw1 (a, n) is a processing wait time

A variable F (a, n) defined by Equation (1) (wherein k (a, n) is a constant set on a step P (a, n) which is the nth step of a product a, Tave (a, n) is an average wait time for the same step as the step P (a, n) which is obtained from the past processing results, Tw1 (a, n) is a processing wait time which is a time difference between a processing end time for a step P (a, n--1) and a processing start time for the step P (a, n), N (a) is a final step for the product a, Te (a, N(a)) is a end time for a final step P (a, N(a)), Tout (a) is a target delivery date for The product a, and E (a) is the number of steps in which the product a is not yet processed) is set on all manufacturing steps of a product which is put in a manufacturing line. The processing start and end times for each step are determined in such a manner that the absolute value of the variable F (a, n) is smaller than a preset constant Fmax which is equal to or greater than 0 so that an initial manufacturing project is formed. The initial manufacturing project is corrected so as not to violate preset constraint conditions. Equation (1) equals: ]EQU1 ]

대표청구항 ▼

[ What is claimed is:] [1.] A method of forming a manufacturing project for a product which is put in a manufacturing line comprising;an initial manufacturing project forming step of setting, on all manufacturing steps, a variable F (a, n) defined by Equation (1): ]EQU11 ] wherein k (a, n) is a cons

[ What is claimed is:] [1.] A method of forming a manufacturing project for a product which is put in a manufacturing line comprising;an initial manufacturing project forming step of setting, on all manufacturing steps, a variable F (a, n) defined by Equation (1): ]EQU11 ] wherein k (a, n) is a constant set on a step P (a, n) which is the nth step of a product a, Tave (a, n) is an average wait time for the same step as the step P (a, n) which is obtained from the past processing results, Tw1 (a, n) is a processing wait time which is a time difference between a processing end time for a step P (a, n-1) and a processing start time for the step P (a, n), N (a) is a final step for the product a, Te (a, N(a)) is a finish time for a final step P (a, N(a)), Tout (a) is a target delivery date for the product a, and E (a) is the number of steps in which the product a is not yet processed, and then determining the processing start and end times for each step in such a manner that the absolute value of the variable F (a, n) is smaller than a preset constant Fmax which is equal to or greater than 0 so that an initial manufacturing project is formed, anda constraint condition canceling step for correcting the initial manufacturing project formed in the initial manufacturing project forming step in such a manner that the initial manufacturing project does not violate preset constraint conditions.