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Student Number 89426002
Author Jen-Kai Weng(翁振凱)
Author's Email Address No Public.
Statistics This thesis had been viewed 2446 times. Download 1599 times.
Department Graduate Institute of Industrial Management
Year 2001
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title 物流中心之揀貨最佳化
Date of Defense 2002-07-08
Page Count 108
Keyword
  • Distribution Center
  • Order-picking
  • Picking Zone Design
  • Abstract Order-picking is an important task in the distribution center(DC) and warehouse. It consumes about 60 percent of operation cost. By improving this aspect of its business, a company can significantly reduce costs. This thesis will propose a variety ways to streamline the order-picking operation. I will develop formulas from the perspective of product classification and warehouse zoning.

    Product classification organizes goods according to their physical characteristic(e.g., product size, weight, and etc. ) or turnover rate(how many items are picked per hour), and arrange them into specific groups. A company can benefit from regularizing its warehouse to save more time in the order-picking process.
    Warehouse zoning divides the whole storage area into many sub-areas to reduce the time and traveling distance. A customer’s order can be split into many sub orders and can be picked simultaneously to reduce the time to a minimum.
    Why is order-picking so important today? Customers demanda great variety of goods and shorter response time. These facts have caused a reduction in product quantities, and the product’s life. The competition of global markets has forced companies to reduce response time to ensure their survival. When a factory produces products from raw materials to a finished good, it’s easier to control the schedule in the factory process, as long as the product is transported to the warehouse, delivering the merchandise to the customer on time is a little more complicated.
    Since delivery has become increasingly important to customers, innovations in warehouse operations has become one the most significant trends in business.
    Order-picking consists of a vague of the warehouse cost. The function of the warehouse is to store the raw materials, semi-products, and finished goods. If a company wants to improve the accuracy of completing customer’s order, it has to rely on well-designed warehouse and accurate order-picking.
    The objective of this paper is to improve order-picking efficiency and accuracy by proposing a method of grouping the products. This thesis will run the simulation program, SIMAN ARENA, to show the improvement and support its position.
    Table of Content 論文提要I
    目錄II
    圖目錄IV
    表目錄VI
    第一章 緒論1
    1.1研究背景1
    1.2捷盟物流簡介3
    1.3研究動機6
    1.4研究目標6
    1.5研究環境7
    1.6論文架構9
    1.7研究方法流程11
    第二章 文獻探討14
    2.1倉庫設計問題(Warehouse Design Problems)15
    2.1.1倉庫的走道設計問題15
    2.1.2設施規劃問題16
    2.2儲位問題(Storage Problems)17
    2.2.1貨品儲位的分配問題17
    2.2.2貨品儲位的管理問題19
    2.3訂單揀貨問題(Order-Picking Problems)20
    2.3.1揀貨員的揀貨方法20
    2.3.2揀貨員的揀貨路徑22
    2.3.3其他相關途程規劃的問題26
    2.3.4AS/RS揀貨問題27
    2.4訂單切割問題(Order-Splitting Problems)28
    第三章 研究方法30
    3.1揀貨區域的前置規劃作業30
    3.1.1揀貨區域環境種類30
    3.1.2揀貨區域規劃準則34
    3.1.3啟發式演算法35
    3.1.3.1符號定義說明36
    3.1.3.2啟發式演算法流程36
    3.1.4範例說明37
    3.2貨品分佈法則與方法41
    3.2.1貨品分佈法則41
    3.2.2貨品分佈方法45
    3.3訂單先前處理47
    3.4訂單揀取順序規劃50
    3.4.1揀貨路徑策略50
    3.4.2固定路徑之訂單初始揀貨順序決定52
    3.4.3彈性路徑之訂單初始揀貨順序決定54
    3.4.4模擬退火法55
    第四章 實驗分析59
    4.1模擬實驗設計59
    4.1.1揀貨環境設計59
    4.1.2貨品項數目與揀貨區域棧板數60
    4.1.3貨品項類別與單位容積考量61
    4.1.4實驗總揀取訂單張數61
    4.1.5揀取車輛負載量、行走速度與數量62
    4.2環境假設63
    4.3績效評估準則63
    4.4實驗因子組合64
    4.5各環境之揀貨區域規劃結果66
    4.6統計ANOVA分析與模擬實驗結果72
    4.6.1訂單揀取績效值數據72
    4.6.2統計前分析75
    4.6.3總揀貨距離績效值變異數分析77
    4.6.3.1針對個別因子不同水準之探討78
    4.6.3.2針對因子間交互作用之探討81
    4.6.3.3最佳因子組合與績效83
    4.6.4總揀取時間績效值變異數分析84
    4.6.4.1針對個別因子不同水準之探討85
    4.6.4.2針對因子間交互作用之探討88
    4.6.4.3最佳因子組合與績效90
    4.7實驗結論91
    第五章 結論與建議92
    5.1研究結論92
    5.2後續研究建議94
    參考文獻95
    附錄、系統畫面介紹100
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    Advisor
  • Ying-Chin Ho(何應欽)
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  • approve immediately
    Date of Submission 2002-07-09

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