Inventory control system and method in recycle-oriented society
First Claim
1. An inventory control system for controlling a stock quantity of lower-level items used for production of items (products) in production processes thereof, the system comprising:
- new lower-level item stock prediction means for predicting, regarding lower-level items to be newly procured, a variation in stock quantity of the new lower-level items at least based on a delivery schedule of the new lower-level items and a present stock quantity along with a usage schedule in a production process; and
regenerated lower-level item delivery prediction means for predicting, regarding lower-level items of regenerated articles obtained from use-completed items collected for recovery, an expected delivery date and an expected number of the regenerated lower-level items based on at least a stock quantity of recovered items and a lead time for taking a regenerated lower-level item out of said items thus recovered, wherein the system controls an inventory of lower-level items in production processes based on a stock prediction result of said new lower-level items and a delivery prediction result of the regenerated lower-level items.
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Abstract
In a physical distribution model of the circulation type, synchronization is established between a reuse plan and a delivery/fabrication plan to thereby reasonably reduce the excess and deficiency of inventory articles at a confluence point of regenerated reusable articles and newly delivered component parts. With regard to newly delivered lower-level items, predict a variation or fluctuation of stock quantity based on at least a delivery schedule of them and a present stock amount along with usage plans in manufacturing processes. As for lower-level items of regenerated articles, predict a delivery due date and an expected number of such regenerated lower-level items based on at least a stock quantity of recovered items collected for reuse purposes and a lead time for taking regenerated lower-level items out of the collected items, thereby controlling, based on the both prediction results, the stock quantity of the lower-level items in manufacturing processes.
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Citations
12 Claims
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1. An inventory control system for controlling a stock quantity of lower-level items used for production of items (products) in production processes thereof, the system comprising:
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new lower-level item stock prediction means for predicting, regarding lower-level items to be newly procured, a variation in stock quantity of the new lower-level items at least based on a delivery schedule of the new lower-level items and a present stock quantity along with a usage schedule in a production process; and
regenerated lower-level item delivery prediction means for predicting, regarding lower-level items of regenerated articles obtained from use-completed items collected for recovery, an expected delivery date and an expected number of the regenerated lower-level items based on at least a stock quantity of recovered items and a lead time for taking a regenerated lower-level item out of said items thus recovered, wherein the system controls an inventory of lower-level items in production processes based on a stock prediction result of said new lower-level items and a delivery prediction result of the regenerated lower-level items.
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2. An inventory control system for controlling a stock quantity of lower-level items used for production of items (products) in production processes thereof, the system comprising:
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new lower-level item stock prediction means for predicting, regarding lower-level items to be newly procured, a variation in stock quantity of the new lower-level items at least based on a delivery schedule of the new lower-level items and a present stock quantity along with a usage schedule in a production process;
regenerated lower-level item deliverablility determination means for determining, concerning usage-completed items collected for recovery, whether it is possible to deliver lower-level items of recovered articles to be obtained from the recovered items based on a predefined delivery determination constraint;
recovered item deployment means for deploying, when the delivery is possible, said recovered items to lower-level items while taking account of a predefined regenerated lower-level item deployment constraint;
regenerated lower-level item delivery prediction means for calculating a delivery schedule of the regenerated lower-level items based on a result of deployment to the lower-level items and a predefined delivery schedule calculation constraint;
lower-level item stock prediction means for predicting an inventory of a lower-level item with a combination of a new article and a regenerated article from a stock prediction result of said new lower-level items and a delivery prediction result of said regenerated lower-level items; and
regenerated lower-level item acceptance determination means for determining whether acceptance of said regenerated lower-level items is possible or not based on a stock prediction result of the lower-level items with the new article and the regenerated article combined together and a predefined stock capacity constraint, wherein the system updates the stock prediction of the lower-level items based on an acceptance determination result to thereby control the inventory of lower-level items. - View Dependent Claims (3, 4, 5)
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6. An inventory control method for controlling a stock quantity of lower-level items used for production of items (products) in production processes thereof, the method comprising the steps of:
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predicting, regarding lower-level items to be newly procured, a variation in stock quantity of the new lower-level items at least based on a delivery schedule of the new lower-level items and a present stock quantity along with a usage schedule in a production process;
predicting, regarding lower-level items of regenerated articles obtained from use-completed items collected for recovery, an expected delivery date and an expected number of the regenerated lower-level items based on at least a stock quantity of recovered items and a lead time for taking a regenerated lower-level item out of said items thus recovered; and
controlling the stock quantity of lower-level items in production processes based on a stock prediction result of said new lower-level items and a delivery prediction result of the regenerated lower-level items. - View Dependent Claims (11)
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7. An inventory control method for controlling a stock quantity of lower-level items used for production of items (products) in production processes thereof, the method comprising the steps of:
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predicting, regarding lower-level items to be newly procured, a variation in stock quantity of the new lower-level items at least based on a delivery schedule of the new lower-level items and a present stock quantity along with a usage schedule in a production process;
determining, concerning usage-completed items collected for recovery, whether it is possible to deliver lower-level items of recovered articles to be obtained from the recovered items based on a predefined delivery determination constraint;
deploying, when the delivery is possible, said recovered items to lower-level items while taking account of a predefined regenerated lower-level item deployment constraint;
calculating a delivery schedule of the regenerated lower-level items based on a result of deployment to the lower-level items and a predefined delivery schedule calculation constraint;
predicting an inventory of a lower-level item with a combination of a new article and a regenerated article from a stock prediction result of said new lower-level items and a delivery prediction result of said regenerated lower-level items;
determining whether acceptance of said regenerated lower-level items is possible or not based on a stock prediction result of the lower-level items with the new article and the regenerated article combined together and a predefined stock capacity constraint; and
updating the stock prediction of the lower-level items based on an acceptance determination result to thereby control the inventory of lower-level items. - View Dependent Claims (8, 9, 10, 12)
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Specification