工工系博士班專題課程     演講公告

題目: Multiple-Crop Scheduling and Order Dispatching in Plant Factory

主講者：楊朝龍教授 (國立台灣科技大學工業管理系)

主持人：廖崇碩教授、吳建瑋教授

日期：2013/09/24 (四)

時間：14:20~16:10

地點：清華大學 工程一館 R901

摘要：

A plant factory is a crop production facility in which the cultivation elements for plant growth, such as temperature, humidity, light, and nutrients can be artificially controlled. The operating cost of plant factories is usually high due to intensive energy consumption. It is crucial to choose appropriate crops for cultivation at proper timing for revenue maximization. First, we proposed a crop scheduling approach for plant factories to consider the factors of crop price fluctuation and contracts between plant factories and retailers. The crop scheduling was formulated as a mixed integer programming problem and solved using branch-and-bound algorithms. The proposed approach can be incorporated into any plant factory to increase its production and revenue. Secondly, a plant factory was considered as an order-based production system to receive crop orders of various types, prices, quantities, and due dates from food retailers or restaurants. It is crucial to identify appropriate order handling rules for maximum profitability. Several combinations of order-releasing policies and dispatching rules for order handling were studied. Simulation was performed to compare the revenues of the plant factory operated under different order handling rules. The simulation results shows that the hybrid order-releasing policy which considers the crop price fluctuation gave better profitability.

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