A Production Scheduling Method Constrained by Multiple Rules

Abstract

The invention relates to a multi-rule-constrained production scheduling method, specifically aimed at the whole vehicle industry, multi-variety collinear production, in order to ensure on-time delivery, reduce the frequency of spraying replacement in the painting workshop, improve the load balance of the assembly workshop, and treat the scheduled orders Sort the problem. The steps are as follows: Step 1: Initialization; Step 2: Decomposition of orders to be scheduled; Step 3: Generate welding shop production plan based on constraint rules; Step 4: Generate painting shop production based on the results of step 3 and painting shop constraint rules Planning; Step 5: According to the result of step 4 and the constraint rules of the assembly shop, generate the production plan of the assembly shop. The invention can effectively solve the problems of frequent change of spraying colors in the painting workshop, unbalanced load in the assembly workshop, decreased production capacity, high spraying cost and the like caused by non-sorting in the mixed-line production in the vehicle industry, and improves the production efficiency.

Description

technical field [0001] The present invention relates to a multi-rule-constrained production schedule, which is specifically aimed at multi-variety collinear production in the production process of the vehicle industry, lack of a reasonable production schedule, frequent changes of spraying colors in the painting workshop, and unbalanced load in the assembly workshop, etc. series of questions. Background technique [0002] my country's vehicle industry adopts a mixed-flow assembly line production model, that is, the same production line can produce vehicles of various models and colors. This production model can well adapt to the market environment of the vehicle industry: various varieties, small order batches, and tight delivery dates. This model can effectively enhance market competitiveness and strive for more market share. However, this kind of multi-model and multi-color car mixed line production will also cause problems such as low production capacity, unbalanced prod...

AI Technical Summary

Problems solved by technology

However, this kind of multi-model and multi-color car mixed line production will also cause problems such as low production capacity, unbalanced production load, increased production cycle, and increased cost. The reason is that the lack of reasonable production schedules causes frequent spraying of colors in the paint shop. A series of problems such as transformation, unbalanced load in the assembly shop, etc.

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