• Title/Summary/Keyword: Automated warehouse

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A Study of Integrated Information System an Automated Warehouse System

  • Park, Young H.;Park, Eui H.
    • Journal of Korean Society for Quality Management
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    • v.16 no.2
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    • pp.48-55
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    • 1988
  • There have been several papers to illustrate how an information system is used in an automated warehouse system. These papers, however. do not carefully address the role of warehouse planning/control systems nor do they recognize how to integrate the management planning/control systems, and automated warehouse system. This article addresses such issues and shows how a business computer system can be used to integrate and unify the warehouse planning/control systems and the automated warehouse system into it single and highly productive operating system.

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A Study for Secure the Reliability of Automated Warehouse System (자동화창고 시스템의 신뢰성 확보를 위한 연구)

  • Lee, Yang-Kyu;Yang, Hae-Sool
    • Journal of Digital Convergence
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    • v.14 no.10
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    • pp.253-259
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    • 2016
  • Recently, not only domestic businesses but also overseas businesses are expanding development and investment in automated warehouses as domestic and foreign logistics environments undergo drastic change. In such an environment, automated warehouse systems are being rapidly changed, and automated warehouse systems equipped with diversified functions are being developed accordingly. But the assessment systems of developed automated warehouse system is at a standstill. In the present article, characteristics of the automated warehouse systems in diversified development and trends of technology were analyzed, based on which evaluation items of functional suitability and reliability were derived by referring to ISO/IEC 25000 as the international quality assessment standard to secure reliability of the automated warehouse system, and an evaluation model was developed through the derived evaluation items. Through the present article, evaluation standards of functional suitability and reliability to enhance quality levels of automated warehouse systems are considered to be secured.

Development of Web-based Simulator for an Automated Warehouse System : Web-SAW (웹 기반 자동창고시스템 시뮬레이터의 개발 : Web-SAW)

  • 임대진;박양병
    • Journal of the Korea Society for Simulation
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    • v.13 no.1
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    • pp.25-39
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    • 2004
  • Simulation has been recognized as one of major application areas of world wide web. Over the last several years, most research has been focused on the development of web-based simulation languages mostly using JAVA and validation of simulation modeling on web with the newly developed languages. In this paper, we develop a tentative web-based simulator for a simple unit-load automated warehouse system, named Web-SAW. In constructing Web-SAW, we program a user interface program, a simulation logic program, and an animation program with JAVA while utilizing the class library functions and embodiment environment of existing web-based simulation languages. Web-SAW simulates the automated warehouse system with the user input about system operation, displays the animation on a static background representing the system, and generates the various textual outputs after simulation.

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Position Control of AS/RS Stacker Crane By Using Cain-Scheduled Control Method in Automated High Rack Warehouse System

  • Kim, Hwan-Seong;You, Sam-Sang;Shigeyasu Kawaji
    • 제어로봇시스템학회:학술대회논문집
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    • 1999.10a
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    • pp.198-201
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    • 1999
  • An automated storage and retrieval machinery for high rack warehouse systems is developed in order to stack the various kinds of productions. However, according to increase in the rack height, the long lead time should be taken. In stacker crane systems, the variations of the lifting height and the load generate the vibration of lifting machine, and it makes a Position control to be difficult Therefore, the reduction of vibration will be important factor for saving the lead time and the damage of Productions. This paper deals with a position control of stacker crane in automated high rack warehouse system by using a gain-scheduled control algorithm via a LMI method, where the variations of elastic coefficient of the stacker crane's post are considered.

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A Study on the Reasonable Materials Handling System of Wooden Furniture Industries (목재가구산업의 적정 물류운반시스템에 관한 연구)

  • Chung, Woo-Yang
    • Journal of the Korean Wood Science and Technology
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    • v.24 no.2
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    • pp.71-80
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    • 1996
  • Handling the manufacured goods is the most cost-consuming task in material handling system in wooden furniture industries. Fully automated warehouse for cartoned goods of a furniture manufacturing company was analized to provide plant engineers and managers with some important informations on the utility and profitability of the automated storage and retrieval system(AS/RS). Process-oriented simulation modeling tech-niques were used to describe the system and to propose some alternatives to promote the efficiency of AS/RS. Simulation report could be inter-preted as follows: 1. Warehouse for the furniture goods must be designed in accordance with reliable material handling program and constructed with suitable equipments depending on the specification of packed products. 2. An excess of palletized products induced the indigestion and the inefficiency of AS/RS of the furniture industry and put this high-costly system into the shade. 3. Overcrowded AS/RS of the furniture factories could regain its material handling function by cutting down the deposit of products into the automated warehouse. For this purpose, reducing the regular output and direct delivering the outside products to the destination should be considered as the definite counterplan. And additional operation of conventional handy warehouse was also expected to improve the efficiency of main AS/RS.

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Muti-Order Processing System for Smart Warehouse Using Mutant Ant Colony Optimization (돌연변이 개미 군집화 알고리즘을 이용한 스마트 물류 창고의 다중 주문 처리 시스템)

  • Chang Hyun Kim;Yeojin Kim;Geuntae Kim;Jonghwan Lee
    • Journal of the Semiconductor & Display Technology
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    • v.22 no.3
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    • pp.36-40
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    • 2023
  • Recently, in the problem of multi-order processing in logistics warehouses, multi-pickup systems are changing from the form in which workers walk around the warehouse to the form in which goods come to workers. These changes are shortening the time to process multiple orders and increasing production. This study considered the sequence problem of which warehouse the items to be loaded on each truck come first and which items to be loaded first when loading multiple pallet-unit goods on multiple trucks in an industrial smart logistics automation warehouse. To solve this problem efficiently, we use the mutant algorithm, which combines the GA algorithm and ACO algorithm, and compare with original system.

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Travel Time Models of a Hybrid Automated Storage/Retrieval Module for Small and Medium-Sized Enterprises (중소기업용 혼합형 자동창고에 대한 주행시간 모형)

  • Lee, Moon-Kyu
    • IE interfaces
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    • v.17 no.spc
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    • pp.52-61
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    • 2004
  • During the past decades automated storage/retrieval (AS/R) systems have been dominantly implemented in most industrial fields due to their handling efficiency and high utilization of storage space. Such AS/R systems consist of several modules each of which contains two racks and a S/R machine. This paper proposes a design of the hybrid AS/R module which can be adopted without too much initial expenditure by most of small-and-medium sized companies. The hybrid module consists of an AS/R module on the upper floor and a traditional warehouse module on the lower floor. For the AS/R module, analytical expressions of the expected travel times for the S/R machine and the elevator per operation are derived. The expected travel times represent the performance of the module and thus can be used for its economic design.

Simulation-based Design Validation and Alternatives Analysis of Release Process of Logistics Automation Warehouse (시뮬레이션을 활용한 물류 자동화 창고의 출고 프로세스 설계 검증 및 대안 분석)

  • Moon-Gi Jeong;JongPil Kim;JinSung Park;Kyung-Min Seo
    • Journal of the Korea Society for Simulation
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    • v.32 no.3
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    • pp.75-91
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    • 2023
  • As the business-to-customer (B2C) online market expands after the COVID-19 pandemic, the logistics industry has been constructing automated warehouses to handle multi-product, low-volume logistics. When constructing a logistics automation warehouse, it is crucial to validate that the facility's performance and operational logic are designed to meet the required throughput of the automated warehouse from the system design phase. This study proposes simulation-based validation and optimal alternatives for an H logistics automation warehouse in Iksan, Jeollabuk-do. Firstly, we focused on the box supply and packing processes, which are related to the release process, among the entire logistic processes. Then, we analyzed the potential bottlenecks in the target process and designed and implemented a discrete-event simulation model based on the analysis results. The simulation experiments showed that the facility parameters and operational logic identified in the system design phase did not satisfy the performance requirements of the entire automated warehouse. Additional experiments were conducted to suggest alternatives to meet the system performance requirements by changing the facility parameters and operational logic. We expect that the proposed study will be utilized in the future, not only in the system design phase but also in the system construction phase, for verification purposes to ensure that the construction proceeds according to the design.

Receipt and issue model for Automated Warehouse based of Mobile rack (모바일랙 기반 자동화 창고 입출고 운영모델 연구)

  • Shin, Jae-Young;Park, Jong-won;Kim, Hwan-sung
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2016.05a
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    • pp.211-212
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    • 2016
  • It is important to adopt an operation system to operate the Automated warehouses using limited resources such as space, mobile racks, and forklift. The main purpose from the operation system is to reduce the length of moving and time for both mobile racks and forklift. The complexity of the warehouse will be higher because the racks and vehicles are moving at the same time. This complexity influences badly so the operation system has to control it well. Not only layout or receipt or issue, but also conflict between mobile racks and vehicles give more complexity to the warehouse. This paper aims to fine the proper operation method related to the layout and the cargo assignment.

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Development of Forklift-Type Automated Guided Vehicle(AGV) with Dual Steering Drive Unit (듀얼 조향구동 장치를 갖는 포크리프트 타입 무인운반차(AGV)의 개발)

  • Won, Chang-Yeon;Kang, Seon-Mo;Nahm, Yoon-Eui
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.44 no.4
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    • pp.145-153
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    • 2021
  • Automated Guided Vehicle (AGV) is commonly used in manufacturing plant, warehouse, distribution center, and terminal. AGV is self-driven vehicle used to transport material between workstations in the shop floor without the help of an operator, and AGV includes a material transfer system located on the top and driving system at the bottom to move the vehicle as desired. For navigation, AGV mostly uses lane paths, signal paths or signal beacons. Various predominant sensors are also used in the AGV. However, in the conventional AGV, there is a problem of not turning or damaging nearby objects or AGV in a narrow space. In this paper, a new driving system is proposed to move the vehicle in a narrow space. In the proposed driving system, two sets of the combined steering-drive unit are adopted to solve the above problem. A prototype of AGV with the new driving system is developed for the comparative analysis with the conventional AGV. In addition, the experimental result shows the improved performance of the new driving system in the maximum speed, braking distance and positioning precision tests.