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研究生： 雷蒙德
Jean-Raymond Fontin
論文名稱： 考量揀貨錯誤和揀貨面阻塞之倉儲揀貨策略組合問題
Combining planning problems in order picking systems considering picking errors and pick-face blocking
指導教授： 林希偉
Shi-Woei Lin
口試委員: 洪一薰
I-Hsuan Hong
陳穆臻
Mu-Chen Chen
蔣明晃
Minghuang Chiang
王孔政
Kung-Jeng Wang
曹譽鐘
Yu-Chung Tsao
林希偉
Shi-Woei Lin
學位類別： 博士
Doctor
系所名稱： 管理學院 - 工業管理系
Department of Industrial Management
論文出版年： 2022
畢業學年度： 110
語文別： 英文
論文頁數： 106
中文關鍵詞： Pick-face blocking 、Picking errors 、Planning Problems 、Order picking system 、Mixed Integer Linear Programming 、Distance models 、Storage location assignment policy 、Picker Routing policy 、Order Batching policy 、Paperless order picking 、Simulated Annealing 、Data Envelopment Analysis 、Full Factorial design
外文關鍵詞： Pick-face blocking, Picking errors, Planning Problems, Order picking system, Mixed Integer Linear Programming, Distance models, Storage location assignment policy, Picker Routing policy, Order Batching policy, Paperless order picking, Simulated Annealing, Data Envelopment Analysis, Full Factorial design
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    • 雖然不同訂單揀選系統的績效可能會受到揀選策略之間交互作用的影響，但過去的研究往往偏重於獨立策略的選擇和評估。本研究在考慮揀選錯誤和揀選位置阻塞的條件下，評估訂單揀選策略和無紙揀選技術及其對訂單揀選系統效能的聯合影響。為了研究路由策略和揀選技術的聯合效能，我們採用了多階段方法，該方法結合了混合整數線性規畫、資料包絡分析以及排序和選擇方法，並且透過混合整數線性規劃模型在考量揀貨員等待時間下找到訂單揀貨吞吐量時間。結果指出遍歷-語音揀選組合和中點-語音揀選組合表現同樣出色，然優勢技術只能在一定程度上提高揀選效率。結果同時指出，訂單批處理、儲存位置分配和揀貨員路由策略的聯合效應對訂單揀貨吞吐量時間有顯著影響，而當中表現最好的組合是最優路由與隨機存儲分配和 FCFS 訂單批處理策略的組合。本研究提供了考慮揀貨位置阻塞和揀貨錯誤情況下，訂單揀貨策略為何以及如何產生交互作用之重要洞見。

    While complicated interaction effects on system performance might exist among various picking policies, picking planning problems are usually evaluated as standalone policies. This dissertation aims to evaluate planning problems and paperless picking technologies and their joint effect on the performance of order picking systems considering picking errors and pick-face blocking. In order to investigate the joint performance of routing policies and picking technologies, we follow a multistage approach that combines mixed integer linear programing algorithms, data envelopment analysis, and ranking and selection methods. Then, we formulate a mixed-integer linear programming model that accounts for picker waiting time to obtain the order picking throughput time. Results show that traversal-voice picking and midpoint-voice picking combinations perform equally well and that superior technology can enhance picking efficiency only to a certain level, and reveal that the joint effects of order batching, storage locations assignment and picker routing policies have a significant effect on order picking throughput time. The best performing combination is revealed to be a combination of optimal routing with random storage assignment and FCFS order batching policies. The study provides useful insights on how and why order picking planning problems interact with each other when considering pick-face blocking and picking errors.

    List of figures iii List of tables iv List of abbreviations v 1. Introduction 1 1.1. Research background 1 1.2. Research problem 5 1.3. Goals of the dissertation and its outline 6 2. Literature review 8 2.1. Paperless picking and picking errors 8 2.2. Picker blocking and order picking 12 3. Joint comparative analysis of routing heuristics and paperless picking technologies 15 3.1. Materials and methods 15 3.1.1. Stage 1: Parameter Selection 15 3.1.2. Stage 2: Inputs and Outputs Determination 16 3.1.3. Stage 3: Efficiency Determination Using DEA 21 3.1.4. Stage 4: Statistical Sampling and Subset Selection 22 3.2. Results and discussions 23 3.2.1. Picking Rate 25 3.2.2. Order Picking Performance 25 3.3. Conclusion 32 4. Combining planning problems and pick-face blocking 34 4.1. Research hypothesis 34 4.1.1. Storage – batching: 34 4.1.2. Storage – routing: 36 4.1.3. Batching – routing: 37 4.2. Problem statement and methodology 37 4.2.1. The joint order batching, sequencing and picker routing problem (JOBSPRP-B) 38 4.2.2. Formulation of a mixed-integer linear programming for the JOBSPRP-B 43 4.2.3. Relaxation of the problem 46 4.2.4. Distance modeling 49 4.3. Experimental design 60 4.4. Empirical results and discussions 63 4.4.1. Storage location assignment and order batching 68 4.4.2. Storage location assignment and picker routing 70 4.4.3. Order batching and picker routing 73 4.4.4. Storage location assignment, picker routing and order batching 74 4.5. Managerial implications and conclusion 77 5. Conclusions 79 References 82 A) Appendix A. Post hoc results of the main and interactions effects 91

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