Dissertations / Theses: 'Automated storage systems'

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Xie, Jinsheng. "On the analysis of selected automated storage and retrieval systems." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/25020.

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Bhagwan, Ranjita. "Automated availability management in large-scale storage systems /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2004. http://wwwlib.umi.com/cr/ucsd/fullcit?p3144326.

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Dou, Chao. "Development of Storage and Retrieval Algorithms for Automated Parking Systems." University of Toledo / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1333678326.

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Anton, Lindh. "Lagerhantering och Automated Storage and Retrieval System (AS/RS) : En flerfallstudie om Automated Storage and Retrieval systems för- och nackdelar för en kostnadseffektiv lagerhantering." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96386.

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Titel: Lagerhantering och Automated Storage and Retrieval System (AS/RS) – En flerfallstudie om Automated Storage and Retrieval systems för- och nackdelar för en kostnadseffektiv lagerhantering Kurs: Examensarbete i Controller för Civilekonomprogrammet, 30 hp (4FE18E) Lärosäte: Ekonomihögskolan vid Linnéuniversitetet i Växjö Författare: Anton Lindh Inledning: Lagerverksamheten har fått en ökad betydelse för företags framgång. Designen på moderna lager har en stor påverkan på investering- och driftkostnad. Vidare sätter e-handelns ökning samt kunders krav press på lagerverksamheter i form av ökat behov av lagerutrymme, behov av alternativ för att hålla nere höga personalkostnader samt snabba leveranser. Automated Storage and Retrieval systems (AS/RS) är ett automatiserat lagersystem som ökar stadigt i användning hos stora företag. I uppsatsen görs försök att undersöka hur för- och nackdelarna påverkar kostnadseffektiviteten av lagerhanteringen och lagerverksamheten. Även huvudtyperna av AS/R system samt AS/R systemets komponenter undersöks för att ge en möjlig förklaring till hur dessa påverkar utfallet av systemets kostnadseffektivitet Syfte: Syftet med uppsatsen är att kartlägga de för- och nackdelar som AS/R system bidrar till lagerhanteringen samt hur för- och nackdelarna kan påverka hur kostnadseffektiv lagerhantering blir. En del av syftet med att besvara fråga 1 och 2 är att kunna vidare djupdyka i och analysera de olika typer och komponenter ett AS/RS består av och se hur dem specifikt kan bidra till slutsatserna av fråga 2. Besvarandet av frågorna ska bidra till ökadförståelse om hur AS/RS på olika sätt kan hjälpa (eller stjälpa) lagerverksamheten och lagerhanteringen att bli mer kostnadseffektiv hos företagMetod: I uppsatsen har en flerfallstudie genomförts med 3 företag som tillsammans har 4 AS/R system. Den empiriska materialinsamlingen skedde genom semistrukturerade intervjuer. Slutsats: Slutsatserna belyser flera för- och nackdelar. Framstående slutsatser inkluderar nackdelar såsom att AS/R system har höga initiala investeringskostnader samt flera flexibilitetsproblem som kan hindra en kostnadseffektiv lagerhantering. Å andra sidan har flera fördelar belysts såsom hög genomströmningskapacitet på grund av underlättande av rutiner och högre produktivitet tillsammans med lägre personalkostnader och minskad ytanvändning. Två analytiska modeller är även presenterade för slutsatserna kring AS/R systemens huvudtyper samt komponenter och deras påverkan på en kostnadseffektiv lagerhantering.

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Towert, D. S. W. M. "Acquisition and storage of data from manual and automated ultrasonic systems." Thesis, Open University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233852.

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Mo, Yiu Wing. "Comparative study on routing strategies for integrated automated storage and retrieval system /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?IEEM%202005%20MO.

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Hollender, Ken James. "A study of input/output systems for unit-load high-rise automated storage and retrieval systems." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/24868.

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Law, King Yiu. "Two routing strategies with cost update in integrated automated storage and retrieval system /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?IELM%202007%20LAW.

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Heidenberg, Alex Jay. "An automated information and distribution system for habitat for humanity international." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/24832.

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Thongmal, Larsson Marie. "A model for material handling improvements when using automated storage systems: A case study." Thesis, Linnaeus University, School of Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-6350.

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The purpose of this thesis is to create a model of how to organize the placements of articles in an automated storage system in order to reduce time and cost related to the extractions. The model was developed during an investigation at a case company, and a comprehensive study of the material handling identified bottlenecks, whereof one was chosen to be further investigated: the automated storage system. The automated storage system is newly installed equipment, which required new working methods to be incorporated to the already existing working environment. The ABC-analysis was used in order to motivate how the articles should be placed in the automated storage. The goal for the new way of handling material was to put as little effort as possible on time related to the extraction of material. This due to the realization of material handling processes being a huge contributor to waste activities. This resulted in the development of the model and the suggestion that is given to the case company is to place the most frequent extracted articles close to the users. However, advantages must be held against disadvantages of rearrangements since the material handling will not be eliminated totally due to smaller improvements.

Syftet med denna uppsats är att skapa en modell för hur man ska organisera artikelplaceringar i ett automatiserat lagersystem för att reducera tid och kostnad relaterat till uttag av material. Modellen skapades genom en undersökning på ett fallföretag, en omfattande studie av materialhanteringen identifierade flaskhalsar, varav en valdes för fortsatt undersökning: det automatiserade lagersystemet. Det automatiserade lagersystemet är en nyinstallerad utrustning, som kräver att nya arbetsmetoder ska inkorporeras till den redan existerande arbetsmiljön. ABC-analysen användes för att motivera hur artiklarna ska placeras i det automatiserade lagret. Målet för det nya sättet att hantera material på var att så få insatser som möjligt skulle användas för uttag av material. Detta pågrund av insikten utav att materialhanteringsprocesser är en stor bidragande slöserifaktor. Detta resulterade i modellen och förslagen som ges till fallföretaget är att placera de mest frekvent använda artiklarna nära användaren. Emellertid så måste man väga fördelar mot nackdelar av en förändring eftersom materialhanteringen inte kommer att elimineras helt pågrund av mindre förbättringar.

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Heaps-Nelson, G. Thomas. "Analyzing and improving throughput of Automated Storage and Retrieval Systems in personal computer manufacturing." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34843.

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Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering; in conjunction with the Leaders for Manufacturing Program at MIT, 2005.
Includes bibliographical references (leaf 85).
The content of this thesis draws heavily on work completed during a 6.5 month MIT Leaders for Manufacturing (LFM) internship at Dell Corporation's personal computer manufacturing facility in Lebanon, Tennessee (EG1) from June 2004 to December 2004. This work relates primarily to efforts to analyze and improve the throughput of the Automated Storage and Retrieval System (ASRS) in that factory. Wherever possible, the thesis abstracts from the EG1 factory case study to provide lessons for improving the throughput of ASRSs and accumulative manufacturing systems in general. In addition to this core of the thesis, specific implementation challenges encountered during the EG 1 case study are addressed. Finally, general cultural observations about Dell's manufacturing environment are discussed. The author believes the two most unique aspects of this work are the Crane Frontier framework developed for analyzing ASRS throughput (Section 2.6) and the range and taxonomy of ASRS throughput improvement solutions (Chapter 3).
by G. Thomas Heaps-Nelson.
S.M.
M.B.A.

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Jessup, Leonard Michael. "The deindividuating effects of anonymity on automated group idea generation." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184806.

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Recent developments in information systems technology have made it possible for individuals to work together anonymously using networked personal computers. In this dissertation, a theory of anonymous interaction is proposed. Evidence is provided to suggest that anonymity has deindividuating effects on group process and can, therefore, influence group outcomes in several ways. Two experiments on anonymity in idea generation are presented. In Study 1, where subjects could leave at their discretion, identification kept them longer and caused them to type more, though there were no differences in the quantity or quality of the ideas across experimental conditions. In Study 2, where subjects were forced to stay, identifiability lost importance. Responsibility, however, rose in importance. Subjects with sole responsibility for their task produced more output than did subjects who shared responsibility. Taken together, these results forced us to reject the hypothesis that anonymous subjects would produce more output than would identified subjects. These results show that we cannot speak simply of the effects of anonymity on idea generation in computer-supported groups. With a straightforward interpretation of previous experiments on GDSS anonymity, it was hypothesized that anonymous subjects would produce more than identified subjects. They did not. It is clear that anonymity will lead to deindividuation, enabling participants to engage in uninhibited behavior. However, whether their behavior is productive or unproductive is determined, at least in part, by task, interaction, and technology.

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Dörr, Katharina [Verfasser]. "Travel Time Models and Throughput Analysis of Dual Load Handling Automated Storage and Retrieval Systems in Double Deep Storage / Katharina Dörr." Karlsruhe : KIT Scientific Publishing, 2018. http://www.ksp.kit.edu.

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Pretorius, Linda. "Remote information management of an automated manufacturing system." Thesis, Bloemfontein : Central University of Technology, Free State, 2007. http://hdl.handle.net/11462/104.

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Thesis (M. Tech.) -- Central University of Technology, Free State, 2007
With technology advancing, more and more people turn to the World Wide Web to conduct business. This may include buying and selling on the Web, advertising and monitoring of business activities. There is a big need for software and systems that enable remote monitoring and controlling of business activities. The Mechatronics Research Group of the Faculty of Engineering, Information and Communication Technology at the Central University of Technology, Free State, has identified a similar need. This research group has created an Automated Manufacturing System around which research topics revolve. They want to monitor this Automated Manufacturing System from remote locations like their offices or, if possible, from home. The Remote Information Management (RIM) System was developed, using the Rapid Application Development (RAD) Methodology. The reasons why this methodology was used, is because it is the best to use in a changing environment, when the system needs to be developed very quickly and when most of the data is already available. This is a good description of the Automated Manufacturing System’s environment. The RAD methodology consists of four stages: Requirements Planning, User Design, Rapid Construction and Transition. Project Management is used throughout these stages to ensure that the project goes according to plan. Development of the RIM system went through all four stages and project management was applied. The final system consisted of a Web Page with Web Camera views of the Automated Manufacturing System. The application that was developed using National Instruments LabVIEW, Microsoft Visual C++, and Microsoft Excel, is embedded in this Web Page. This application is called a Virtual Instrument (VI). The VI shows real-time data from the Automated Manufacturing System. Control over the VI can be granted and will allow the remote user to create reports on how many different products was produced and system downtimes. A system like the RIM System has advantages in the business world. It can enable telecommuting and will allow employees and managers to monitor (and even control) manufacturing systems, or any system connected to a PLC, from remote locations.

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Slabber, Frans Bresler. "Semi-automated extraction of structural orientation data from aerospace imagery combined with digital elevation models." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005614.

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A computer-based method for determining the orientation of planar geological structures from remotely sensed images, utilizing digital geological images and digital elevation models (DEMs), is developed and assessed. The method relies on operator skill and experience to recognize geological structure traces on images, and then employs software routines (GEOSTRUC©) to calculate the orientation of selected structures. The operator selects three points on the trace of a planar geological feature as seen on a digital geological image that is co registered with a DEM of the same area. The orientation of the plane that contains the three points is determined using vector algebra equations. The program generates an ASCII data file which contains the orientation data as well as the geographical location of the measurements. This ASCII file can then be utilized in further analysis of the orientation data. The software development kit (SDK) for TNTmips v5.00, from MicroImages Inc. and operating in the X Windows environment, was employed to construct the software. The Watcom C\C++ Development Environment was used to generate the executable program, GEOSTRUC© . GEOSTRUC© was tested in two case studies. The case studies utilized digital data derived from the use of different techniques and from different sources which varied in scale and resolution. This was done to illustrate the versatility of the program and its application to a wide range of data types. On the whole, the results obtained using the GEOSTRUC© analyses compare favourably to field data from each test area. Use of the method to determine the orientation of axial planes in the case study revealed the usefulness of the method as a powerful analytic tool for use on a macroscopic scale. The method should not he applied in area with low variation in relief as the method proved to be less accurate in these areas. Advancements in imaging technology will serve to create images with better resolution, which will, in turn, improve the overall accuracy of the method.

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Kamf, Tobias. "Automated Production Technologies and Measurement Systems for Ferrite Magnetized Linear Generators." Doctoral thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-330866.

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The interest in breaking the historical dependence on fossil energy and begin moving towards more renewable energy sources is rising worldwide. This is largely due to uncertainties in the future supply of fossil fuels and the rising concerns about humanity’s role in the currently ongoing climate changes. One renewable energy source is ocean waves and Uppsala University has since the early 2000s been performing active research in this area. The Uppsala wave energy concept is centered on developing linear generators coupled to point absorbing buoys, with the generator situated on the seabed and connected to the buoy on the sea surface via a steel wire. The motion of the buoy then transfers energy to the generator, where it is converted into electricity and sent to shore for delivery into the electrical grid. This thesis will mainly focus on the development and evaluation of technologies used to automate the manufacturing of the translator, a central part of the linear generator, using industrial robotics. The translator is a 3 m high and 0.8 m wide three sided structure with an aluminum pipe at its center. The structure consists of alternating layers of steel plates (pole-shoes) and ferrite magnets, with a total of 72 layers per side. To perform experiments on translator assembly and production, a robot cell (centered on an IRB6650S industrial robot) complimented with relevant tools, equipment and security measures, has been designed and constructed. The mounting of the pole-shoes on the central pipe, using the industrial robot, proved to be the most challenging task to solve. However, by implementing a precise work-piece orientation calibration system, combined with selective compliance robot tools, the task could be performed with mounting speeds of up to 50 mm/s. Although progress has been made, much work still remains before fully automated translator assembly is a reality. A secondary topic of this thesis is the development of stand-alone measurement systems to be used in the linear generator, once it has been deployed on the seabed. The main requirements of such a measurement system is robustness, resistance to electrical noise, and power efficiency. If possible the system should also be portable and easy to use. This was solved by developing a custom measurement circuit, based on industry standard 4–20 mA current signals, combined with a portable submersible logging unit. The latest iteration of the system is small enough to be deployed and retrieved by one person, and can collect data for 10 weeks before running out of batteries. Future work in this area should focus on increasing the usability of the system. The third and final topic of this thesis is a short discussion of an engineering approach to kinetic energy storage, in the form of high-speed composite flywheels, and the design of two different prototypes of such flywheels. Both designs gave important insights to the research group, but a few crucial design faults unfortunately made it impossible to evaluate the full potential of the two designs.

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Malki, Khalil. "Automated Knowledge Extraction from Archival Documents." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2019. http://digitalcommons.auctr.edu/cauetds/204.

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Traditional archival media such as paper, film, photographs, etc. contain a vast storage of knowledge. Much of this knowledge is applicable to current business and scientific problems, and offers solutions; consequently, there is value in extracting this information. While it is possible to manually extract the content, this technique is not feasible for large knowledge repositories due to cost and time. In this thesis, we develop a system that can extract such knowledge automatically from large repositories. A Graphical User Interface that permits users to indicate the location of the knowledge components (indexes) is developed, and software features that permit automatic extraction of indexes from similar documents is presented. The indexes and the documents are stored in a persistentdata store.The system is tested on a University Registrar’s legacy paper-based transcript repository. The study shows that the system provides a good solution for large-scale extraction of knowledge from archived paper and other media.

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Korkmaz, Ozgur. "Development Of A Miniaturized Automated Production Control System." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614013/index.pdf.

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In this thesis a custom embedded system and control software developed for an Automated Storage and Retrieval System (AS/RS) which is based on the Computer Integrated Manufacturing Laboratory (CIMLAB) located in the Department of Mechanical Engineering, Middle East Technical University. Primary objective of this study is AS/RSs related control rules can be applicable to the current physical system. The secondary objective is determined as developing the control system in a flexible way that allows adding new equipments to the system and configuring parts of the system. Two types of control board are manufactured and also boards&rsquo
firmware and computer software are developed. These two boards communicate with computer one at a time. Some AS/RS related control rules are implemented at the control software. According to these rules the control software assigns tasks to the related board. Also the control software records necessary information in order to measure the performance of the AS/RS. Several control rules as storage assignment, dwell point and sequencing of storage and retrieval order rules are applicable to the AS/RS without need for low level programming. Because of the physical limitation, batching rules cannot be applied to the current system. Also a graphical user interface is developed for using the system easily and observing the real time status of the system equipments. Two experiments are designed and run in order to show flexibility of the control system. Different control rules applied to each of the experiment. Experiment results put forth the control system was quite successful in meeting the objectives.

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Hogan-Murphy, Diana. "Exploring the facilitators and barriers towards implementation of electronic prescribing, dispensing, and administration of medicines in hospitals in Ireland." Thesis, Robert Gordon University, 2017. http://hdl.handle.net/10059/2710.

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Limited data exist on the facilitators and barriers to implementing electronic systems for medicines management in hospitals. Whilst numerous studies advocate system use in improved patient safety and efficiency within the health service, their rate of adoption in practice has been slow. The aim of this doctoral research was to explore this under-researched area in three phases. Phase one: - Phase one focused on critically appraising and synthesising the available evidence on healthcare professionals’ perceptions, attitudes, and views of the facilitators and barriers to implementing electronic prescribing, electronic dispensing, and/or electronic administration of medicines in the hospital setting. The review protocol was registered with the Centre for Reviews and Dissemination and conducted according to best practice. Key facilitators included systems improved patient safety and provided better access to patients’ drug records and that team leadership and hardware/software availability and reliability were essential for successful implementation. Key barriers consisted of hardware and network problems, altered work practices, and weakened interpersonal communication between healthcare professionals and with patients. Phase two: - This phase employed a qualitative phenomenological design to gain original insight into the perceptions of local key stakeholders towards the facilitators and barriers to implementing prescribing, robotic pharmacy systems, and automated medication storage and retrieval systems in public hospitals in Ireland using Normalization Process Theory as a theoretical framework. Individual face-to-face semi-structured interviews were conducted in three public hospitals in Ireland with 23 consenting participants: nine nurses; four pharmacists; two pharmacy technicians; six doctors; and two hospital Information Technology managers. Enhanced patient safety and efficiency in healthcare delivery emerged as key facilitators to system implementation, as well as the need to have clinical champions and a multidisciplinary implementation team to promote engagement and cognitive participation. Key barriers included inadequate training and organisational support, and the need for ease and confidence in system use to achieve collective action. Phase three: - A similar qualitative methodology was employed in phase three of this research in order to explore the perceptions of national key stakeholders and eHealth leads towards the facilitators and barriers to system implementation. Sixteen consenting invitees participated: eight hospital leads, four government leads, two regulatory leads, and two academics. Key facilitators included enhanced patient safety, workflow efficiencies, improvements in governance, and financial gains. Perceived barriers included the introduction of new drug errors, loss of patient contact, initial time inefficiencies, and issues with the complexity of integration and standardisation of work processes. Overall, adequate technology, stakeholder involvement, and organisational leadership and support are required at a national and local level to drive the eHealth agenda forward. Testing at scale, contingency plans, and ongoing evaluations will assist in determining success or otherwise of system implementation. This research has generated novel findings with many potentially transferable themes identified which extend the evidence base. This will assist organisations to better plan for implementation of medication-related eHealth systems.

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Futcher, Frank W. "Selective offload capability simulation (SOCS) : an analysis of high-density storage configurations." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FFutcher.pdf.

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Thesis (M.S. in Operations Research)--Naval Postgraduate School, September 2003.
Thesis advisor(s): Kevin R. Gue, Arnold H. Buss. Includes bibliographical references (p. 85-86). Also available online.

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Molinari, Petr. "Návrh systému horizontálního pohonu unašeče skladovacího systému LLH." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232029.

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The aim of this diploma thesis is system design of the horizontal drive carrier storage system LLH. In the first part describes the problems of storage of bars, complemented by an overview of commercially used vertical storage systems. Next part is devoted to build computational algorithm for t he design of the carrier drive system. With this algorithm, the device is designed in the final part.

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Arthur, Gerald L. Gong Yang. "Implementation of a fuzzy rule-based decision support system for the immunohistochemical diagnosis of small B-cell lymphomas." Diss., Columbia, Mo. : University of Missouri-Columbia, 2009. http://hdl.handle.net/10355/6569.

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Thesis (M.S.)--University of Missouri-Columbia, 2009.
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Thesis advisor: Yang Gong. "May 2009" Includes bibliographical references.

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Eaglesham, Mark A. "Automated storage and retrieval system design report." Master's thesis, Virginia Tech, 1995. http://hdl.handle.net/10919/43535.

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This report describes the design and operation of an Automated Storage and Retrieval System (AS/RS) to serve the Flexible Manufacturing and Assembly System (FMAS) in the Manufacturing Systems Laboratory at Virginia Tech. The system requirements of the AS/RS, justification of design choices, and the proposed modes of operating the system are described. The AS/RS was designed to automatically move material on pallets between the storage racks in the laboratory to the FMAS conveyor interface. The system was designed and built, and has been tested to perform the desired operating functions. The scope of this project was limited to designing and installing the hardware component of the AS/RS, and testing it to ensure that it will satisfy the system requirements of the FMAS. The educational objective of the project is to enable fully automated control of all cell activities via the FMAS Computer Network.
Master of Science

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Nascimento, Jurandy Antonio do. "IEEE 802.15.4 - redes de sensores sem fio como infra-estrutura para comunicação entre veiculos e sistemas de controle." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259382.

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Orientador: Jose Raimundo de Oliveira
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e Computação
Made available in DSpace on 2018-08-08T12:33:26Z (GMT). No. of bitstreams: 1 Nascimento_JurandyAntoniodo_M.pdf: 1298680 bytes, checksum: eebec168aaccc2455ed7b9dad7ca1ab7 (MD5) Previous issue date: 2007
Resumo: Devido ao crescente interesse em automação de rodovias e ao desenvolvimento e a viabilidade econômica de tecnologias de comunicação sem fio, surgiram nos últimos anos projetos para a comunicação entre veículos que possibilitam que dados de sensores locais, indicando situação de risco, sejam transmitidos para outros veículos de sua vizinhança para sinalizar a situação, ou mesmo para uma possível atuação no fluxo do tráfico local. É apresentada aqui uma infra-estrutura de comunicação sem fio que faz uso da especificação IEEE 802.15.4 para a comunicação entre veículos e que tem aplicações também em controle de sistemas, devido à sua característica versátil
Abstract: Due to the increasing interest on roads automation and to the development and the economic viability of wireless communication technologies, it has appeared in the last years projects to implement inter-vehicle communication links which makes possible that local sensors data, indicating risk situation, to be transmitted to others vehicles on its neighborhoods to signalize the situation or even to a possible actuation on the local traffic flow. It is presented here a wireless communication infrastructure that makes use of IEEE 802.15.4 specification for inter-vehicle communication and also for control systems applications due to its versatile characteristics
Mestrado
Engenharia de Computação
Mestre em Engenharia Elétrica

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Quiroz, Marco Antonio. "Simulation of a microload automated storage/retrieval system." Thesis, Georgia Institute of Technology, 1986. http://hdl.handle.net/1853/24574.

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Roll, Jakob. "A System for Visual-Based Automated Storage Robots." Thesis, Linköping University, Linköping University, Automatic Control, 1999. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-54360.

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Automated storage systems often rely on that the positions of the pallets are known with high precision. In this thesis, a turnable camera mounted on the robot has been used for handling the situation of approximately known pallet positions. The robot is given the approximate location of a pallet, and its objective is to locate the pallet with a precision that is high enough to be able to approach it from the correct direction and then lift it. For this, a precision of a few centimetres in each direction is needed.

A system for locating the pallet from single images, based on rotational symmetry filters, has been developed, and a simple program for controlling the robot has been implemented. These could very well be extended and improved, e.g. by considering multiple images and improving the path planning.

The main part of the thesis deals with the image processing part. Other parts of the project, apart from the controller, include implementation of servers controlling the camera and the frame grabber.

Some tests have been made, which show fairly promising results.

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Lawrence, Terry. "Control of an automated storage and retrieval system." Master's thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-01262010-020309/.

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Scharfstein, Daniel Oscar. "Analytical performance measures for the miniload automated storage/retrieval system." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/25192.

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Mourral, Emma, and Claire Lesaffre. "Benefits and Challenges of an Automated Storage and Retrieval System : A theoretical study on Food and Pharmaceutical automated storage and retrieval process." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95881.

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Crum, Joseph A. "Simulating a storage and retrieval system interfaced with an automated guided vehicle system." Ohio : Ohio University, 1987. http://www.ohiolink.edu/etd/view.cgi?ohiou1183042437.

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Park, Byung Chun. "Analytical models and optimal strategies for automated storage/retrieval system operations." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/24568.

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Moyer, Adam C. "Self-Evolving Data Collection Through Analytics and Business Intelligence to Predict the Price of Cryptocurrency." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1604656483616404.

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Rodriguez, Hernando Efrain Leon. "Automated NDT Robotic System for Storage Oil Tanks and Nuclear Pressure Vessel." Thesis, London South Bank University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506710.

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Yuan, Rong Ph D. Massachusetts Institute of Technology. "Velocity-based storage and stowage decisions in a semi-automated fulfillment system." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106682.

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Thesis: Ph. D., Massachusetts Institute of Technology, Sloan School of Management, Operations Research Center, 2016.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 153-156).
The supply chain management for an online retailing business is centered around the operations of its fulfillment centers. A fulfillment center receives and holds inventory from vendors, and then uses this inventory to fill customer orders. Our research focuses on a new operating architecture of an order fulfillment system, enabled by new technology. We refer to it as the Semi-automated Fulfillment System. Different from the person-to-goods model in traditional warehouses, the semi-automated fulfillment system adopts a goods-to-person model for stowing and picking items from a storage field. In a semi-automated fulfillment system the inventory is stored on mobile storage pods; those mobile pods are then carried by robotic drives to static stations at which the operators conduct pick or stow operations. In the first chapter, we describe and identify three key operational decisions in the semiautomated fulfillment system, namely from which pods to pick the inventory needed (picking decision), where to return the pod to the storage field upon the completion of a pick or stow operation (storage decision), and to which pods to replenish the received inventory (stowage decision). We present a high-level capacity planning model for determining the number of robotic drives needed to achieve a given throughput level. This model highlights how the operational efficiency in this system depends on two key parameters, namely the travel time for an entire drive trip and the number of unit picks or stows per pod trip. In the second chapter, we focus on the storage decisions. The storage decision is to decide to which storage location to return a pod upon the completion of a pick or stow operation. We extend the academic results on the benefits of adopting velocity-based and class-based storage policies to the context of the semi-automated fulfillment system. We associate with each storage pod a velocity measure that represents an expectation of the number of picks from that pod in the near future. We then show that by assigning the high velocity pods to the most desirable storage locations, we can significantly reduce the drive travel time, compared to the random storage policy that returns the pod to a randomly-chosen storage location. We show that class-based storage policies with two or three classes, can achieve most of the benefits from the idealized velocity-based policy. Furthermore, we characterize how the performance of the velocity-based and class-based storage policies depend on the velocity variability across the storage pods; in particular we model how the benefits from velocity-based storage policies increase with increased variation in the pod velocities. In the third chapter, we build a discrete-time simulator to validate the theoretical models in the second chapter with real industry data. We observe a 6% to 11% reduction in the travel distance with 2-class or 3-class system, depending on the parameter settings. From a sensitivity analysis we establish the robustness of the class-based storage policies as they continue to perform well under a broad range of warehouse settings including different zoning strategies, resource utilization levels and space utilization levels. In the fourth chapter, we examine two stowage decisions, one at the zone level and the other at the pod level. The zone-level decision is to decide how to allocate the received inventory to multiple storage zones. The objective is to assure that the resulting picking workload for each zone is within its capacity. We show by simulation that a chaining-based allocation can be effective to balance the picking workload across different storage zones. The pod-level stowage decision is to decide on which pods to stow the inventory. We formulate a mixedinteger program (MIP) to find the optimal stowage profile that maximizes the number of unit picks per pod trip. We solve the MIP for a set of test cases to gain insight into the structure of optimal stowage policy. Motivated by these insights, we further propose a class-based stowage process that induces variability across the pod velocities.
by Rong Yuan.
Ph. D.

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35

Cenek, Martin. "Information Processing in Two-Dimensional Cellular Automata." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/275.

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Cellular automata (CA) have been widely used as idealized models of spatially-extended dynamical systems and as models of massively parallel distributed computation devices. Despite their wide range of applications and the fact that CA are capable of universal computation (under particular constraints), the full potential of these models is unrealized to-date. This is for two reasons: (1) the absence of a programming paradigm to control these models to solve a given problem and (2) the lack of understanding of how these models compute a given task. This work addresses the notion of computation in two-dimensional cellular automata. Solutions using a decentralized parallel model of computation require information processing on a global level. CA have been used to solve the so-called density (or majority) classification task that requires a system-wide coordination of cells. To better understand and challenge the ability of CA to solve problems, I define, solve, and analyze novel tasks that require solutions with global information processing mechanisms. The ability of CA to perform parallel, collective computation is attributed to the complex pattern-forming system behavior. I further develop the computational mechanics framework to study the mechanism of collective computation in two-dimensional cellular automata. I define several approaches to automatically identify the spatiotemporal structures with information content. Finally, I demonstrate why an accurate model of information processing in two-dimensional cellular automata cannot be constructed from the space-time behavior of these structures.

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Zhou, Yu. "AUTOMATIC GENERATION OF WEB APPLICATIONS AND MANAGEMENT SYSTEM." CSUSB ScholarWorks, 2017. https://scholarworks.lib.csusb.edu/etd/434.

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One of the major difficulties in web application design is the tediousness of constructing new web pages from scratch. For traditional web application projects, the web application designers usually design and implement web application projects step by step, in detail. My project is called “automatic generation of web applications and management system.” This web application generator can generate the generic and customized web applications based on software engineering theories. The flow driven methodology will be used to drive the project by Business Process Model Notation (BPMN). Modules of the project are: database, web server, HTML page, functionality, financial analysis model, customer, and BPMN. The BPMN is the most important section of this entire project, due to the BPMN flow engine that most of the work and data flow depends on the engine. There are two ways to deal with the project. One way is to go to the main page, then to choose one web app template, and click the generating button. The other way is for the customers to request special orders. The project then will give suitable software development methodologies to follow up. After a software development life cycle, customers will receive their required product.

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Hafernik, Carolyn T. "Automatic methods to disambiguate geospatial queries /." Connect to online version, 2007. http://ada.mtholyoke.edu/setr/websrc/pdfs/www/2007/246.pdf.

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Tran, Chinh Nguyen. "An automatic test generation system for testing virtual memory operations /." Digital version accessible at:, 1999. http://wwwlib.umi.com/cr/utexas/main.

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39

Popelka, Paul. "Net present value analysis of an automated grain aeration system technology on stored corn." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/19034.

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Master of Agribusiness
Agricultural Economics
Allen M. Featherstone
The purpose of this thesis is to analyze whether the use of automated aeration systems for reducing moisture in corn during storage provides sufficient net present value for Nebraska corn farmers. The objective is to examine if an automated aeration system provides sufficient energy savings, marketing opportunities and reduced drying costs before corn delivery to an elevator. On-the-farm corn storage has steadily increased and harvesting corn before the moisture has achieved the desired targets cost farmers in drying charges and shrink. Farmers are interested in whether automated aeration systems can remove enough moisture from grain, without over-drying the bin, without spending a large amount of time determining when to run their grain bin aeration fans. Data for this project were obtained from four privately owned 60,000 bushel grain bins outfitted with the IntelliAir™ BinManager™ automated aeration system. Moisture samples were taken from each of the trucks hauling grain to the bin and again after removal of the corn after the automated system had ran for 9 months. Energy usage, drying charges, and shrink were calculated for the initial corn moisture averages and the moisture at the time of removal. Each bin was examined using Net Present Value (NPV) analysis to determine whether the energy savings were enough to offset the initial installation cost and annual expenses of the project. After the NPV was estimated for each of the bins, a sensitivity analysis of how corn price changes and no aeration required would affect the NPV analysis. Finally, an analysis of the total costs savings of a continuously ran aeration system was compared to the automated aeration system. The conclusion of the NPV analysis was that adding an automated aeration system would be profitable under most scenarios. More studies are needed to determine the profitability of automated aeration systems in different regions, moisture inputs, and bin sizes.

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Lund, Jonathan Gary. "The Storage of Parametric Data in Product Lifecycle Management Systems." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1257.pdf.

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O'Connor, Maureen J. Patillo Paul J. "Reengineering human performance and fatigue research through use of physiological monitoring devices, web-based and mobile device data collection methods, and integrated data storage techniques /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FO'Connor.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, December 2003.
Thesis advisor(s): Nita L. Miller, Thomas J. Housel. Includes bibliographical references (p. 115-117). Also available online.

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Liu, Hain-Ching. "Automatic scene detection in MPEG digital video for random access indexing and MPEG compression optimization /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/6001.

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Ozmen, Oguzhan. "Automated Storage Layout for Database Systems." Thesis, 2010. http://hdl.handle.net/10012/5367.

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Modern storage systems are complex. Simple direct-attached storage devices are giving way to storage systems that are flexible, network-attached, consolidated and virtualized. Today, storage systems have their own administrators, who use specialized tools and expertise to configure and manage storage resources. As a result, database administrators are no longer in direct control of the design and configuration of their database systems' underlying storage resources. This introduces problems because database physical design and storage configuration are closely related tasks, and the separation makes it more difficult to achieve a good end-to-end design. For instance, the performance of a database system depends strongly on the storage layout of database objects, such as tables and indexes, and the separation makes it hard to design a storage layout that is tuned to the I/O workload generated by the database system. In this thesis we address this problem and attempt to close the information gap between database and storage tiers by addressing the problem of predicting the storage (I/O) workload that will be generated by a database management system. Specifically, we show how to translate a database workload description, together with a database physical design, into a characterization of the I/O workload that will result. Such a characterization can directly be used by a storage configuration tool and thus enables effective end-to-end design and configuration spanning both the database and storage tiers. We then introduce our storage layout optimization tool, which leverages such workload characterizations to generate an optimized layout for a given set of database objects. We formulate the layout problem as a non-linear programming (NLP) problem and use the I/O characterization as input to an NLP solver. We have incorporated our I/O estimation technique into the PostgreSQL database management system and our layout optimization technique into a database layout advisor. We present an empirical assessment of the cost of both tools as well as the efficacy and accuracy of their results.

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CHEN, YI-CHIH, and 陳以智. "Automated Storage and Retrieval System Maintenance Problems -- “A” company in Automated Storage and Retrieval Systems as an example." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/48413348421186932178.

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碩士
國立中央大學
工業管理研究所碩士在職專班
97
Automatic storage of relevant studies have been developed, including design principles of automatic storage, automatic storage structure of the classification of the operation of automatic storage systemic flow analysis, automatic storage, such as access to local access logic, and comparison, for the operation of the Automated Storage and Retrieval Management seldom explored. Automated Storage and Retrieval operations from time to ship about the proportion of the entire warehousing operation time of about 30% ~ 40% efficiency of the implementation of warehouse storage operations to be automated so that the effective operation of storage as the first priority. A company warehousing operations, including production, order processing, automated warehousing operation get access to machines, as well as cargo handling operations and effective co-ordination between them, or will have excessive or unnecessary bottlenecks in operations, not only affects the logistics center picking time, and the overall service operation caused delay, unnecessary costs arising. Therefore, in order to automatically analyze the establishment of a correct storage and picking operations more efficient management, automatic storage for the entire impact of the implementation will not be quite efficient. Therefore, the depth will be able to automatic storage and day-to-day operation of what happened on controlling abnormal situation, analyze the risks and possible preventive measures and even set up more efficient processes in order to effectively enhance the storage of Automated Storage and Retrieval Systems Operations Management is very worthy of study issue. The main purpose of this study was to explore the failure of the automatic storage system maintenance problems.

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Chen, Chih-Wei, and 陳志威. "Performance Modeling for Automated Storage and Retrieval Systems." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/cbqrqp.

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碩士
國立臺灣科技大學
工業管理系
95
Warehouse industries and modern factories are now dominated by crane-based Automated Storage and Retrieval Systems (AS/RS's) where aisle captive cranes provide more efficient movement patterns owing to simultaneously horizontal and vertical movement. However, system performance of AS/RS’s is not well discussed analytically and efficiently. This thesis proposes computationally efficient performance evaluation models for AS/RS’s under stochastic demand. Based on the assumptions of First-Come-First-Serve, random storage and a particular dwell point policy, storage/retrieval (S/R) machine travel time and the probability distribution for four travel scenarios are formulated and used to generate expected transaction service times. System performance including transaction waiting time and S/R machine utilization is the key to determine if the transaction demand is met. The proposed models provide prediction of system performance based on rack sizes, S/R machine travel velocity and transaction demand rates. They can be illustrated in the design and evaluation for an actual system installation.

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SUNG, MIN-HAO, and 宋敏豪. "Research on Fire Extinguishing Systems for Automated Storage and Retrieval Systems." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/gy9pfx.

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碩士
長榮大學
職業安全與衛生學系碩士班
106
Automated Storage and Retrieval Systems (AS/RS) utilize high density storage capacities as well as elevated rack structures, which challenge the feasibility and validity of active fire regulations. Recently in Japan, there were two occurrences of major fire accidents in the logistics industry that had AS/RS. However, it is noted that the domestic standards set for automatic sprinkler systems in these locations are only stated in Article 17 of “Standard for Installation of Fire Safety Equipments Based on Use and Occupancy”, and the fact that many of the domestic standards are based off of Japanese regulations, it shows that the effectiveness of sprinklers for AS/RS above 30 meters high need to be reevaluated. This research focused on literature collection and field surveys of AS/RS, and analyzed classification of goods, setup specifications of automatic sprinkler equipment, and also the current designs within the industry. FDS was then used to simulated fires within AS/RS while field experiments were conducted to assess the fire extinguishing performance of storage rack sprinklers. FDS simulation results showed that when sprinklers were located directly above the goods, normal fires (Class II) could be extinguished, while the growth of plastic fires (Group A) could be slowed. Field experiments results showed that when sprinklers with a K value of 114 LPM/bar0.5 were set directly above the goods, a discharge pressure of 1 kgf/cm2 could extinguish the fire; but if the sprinklers were placed between double row racks, the discharge pressure would need to be 2 kgf/cm2 for it to be effective. Therefore, this research recommends that the minimum required discharge pressure for sprinklers be 2 kgf/cm2 for the effective suppression of fire growth.

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47

Shroff, Raj N. "Simulation-based design evaluation of automated storage/retrieval systems." Thesis, 1992. http://hdl.handle.net/1957/37296.

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Automated storage and Retrieval (AS/R) systems have had a significant impact on storage and retrieval of finished goods, work-in-process, and raw materials and supplies. A microcomputer-based simulation model was developed to evaluate different unit load AS/R systems serving multiple input sources and output destinations. The simulation results were statistically analyzed on different performance measures including throughput, mean waiting times maximum waiting times and rejects. The results showed that for single-dock, square-in-time layouts, the class based arrangement produced significantly higher throughput for all scheduling policies. Among the scheduling policies, the relief nearest neighbor produced consistently higher throughput. Comparing square-in-time versus non-square-in-time layouts, the square-in-time layout performance was better; the performance deteriorated as deviations from square-in-time increased. For the two dual-dock layouts, at lower arrival rates the dedicated layout produced higher throughput; there was no significant difference between the two layouts at higher arrival rates.
Graduation date: 1992

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Chiang, Jerry, and 姜世川. "A Study of Dynamic Scheduling of Automated Storage/Retrieval Systems." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/99933328772580340840.

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碩士
中原大學
工業工程研究所
85
According to our survey, most automated storage and retrieval systems (AS/RSs) use a single storage and retrieval (S/R) rule to decide which task (storage, retrieval, or both; this study handles the latter case, which is called as a dual-command task) should be done first. This approach can not obtain better performance due to lack of adjustment with environment or system changes. Usually, the single rule approach caponly obtain a better result for a single performance criterion. This study proposes a different approach which gives an opportunity to dynamically choose a rule from multiple S/R rules when a task decision comes. This research develops an integrated system which combined a simulation system software with a genetic algorithm (GA) software. The parameters of the simulation model of an AS/RS are studied, namely open storage locations, numbers of dual commands, numbers of due dates, and arriving rate of new task. The rules can be chosen are first-come-first-serve (FCFS), dynamic-nearest-neighbor (DNN), and SDDT-R (Shortest Delivery Due Date-Random). The performance criterion used in this study are total execution time, total tardiness time, and largest queue length, etc. This study identifies results reported in the literature that the approach ofDNN has the shortest total execution time but a poor performance in total tardiness time andthe approach of due-date has the lowest tardiness time but a poor performance in total execution time. Moreover, this study shows that one of the approaches with the multiple rules, GA has the best result for multiple performance criteria. It has the similar performance as DNN in total execution time, but has a better result than DNN in total tardiness time.

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Pipada, Pankaj. "Studies In Automatic Management Of Storage Systems." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2489.

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Autonomic management is important in storage systems and the space of autonomics in storage systems is vast. Such autonomic management systems can employ a variety of techniques depending upon the specific problem. In this thesis, we first take an algorithmic approach towards reliability enhancement and then we use learning along with a reactive framework to facilitate storage optimization for applications. We study how the reliability of non-repairable systems can be improved through automatic reconfiguration of their XOR-coded structure. To this regard we propose to increase the fault tolerance of non-repairable systems by reorganizing the system, after a failure is detected, to a new XOR-code with a better fault tolerance. As errors can manifest during reorganization due to whole reads of multiple submodules, our framework takes them in to account and models such errors as based on access intensity (ie.BER-biterrorrate). We present and evaluate the reliability of an example storage system with and without reorganization. Motivated by the critical need for automating various aspects of data management in virtualized data centers, we study the specific problem of automatically implementing Virtual Machine (VM) migration in a dynamic environment according to some pre-set policies. This is a problem that requires automated identification of various workloads and their execution environments running inside virtual machines in a non-intrusive manner. To this end we propose AuM (for Autonomous Manager) that has the capability to learn workloads by aggregating variety of information obtained from network traces of storage protocols. We use state of the art Machine Learning tools, namely Multiple Kernel learning ,to aggregate information and show that AuM is indeed very accurate in identifying work loads, their execution environments and is also successful in following user set policies very closely for the VM migration tasks. Storage infrastructure in large-scale cloud data center environments must support applications with diverse, time-varying data access patterns while observing the quality of service. To meet service level requirements in such heterogeneous application phases, storage management needs to be phase-aware and adaptive ,i.e. ,identify specific storage access patterns of applications as they occur and customize their handling accordingly. We build LoadIQ, an online application phase detector for networked (file and block) storage systems. In a live deployment , LoadIQ analyzes traces and emits phase labels learnt online. Such labels could be used to generate alerts or to trigger phase-specific system tuning.

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Corsaro, Livio Fabio. "An automated storage and retrieval system for use in a flexible manufacturing cell." Thesis, 1997. https://hdl.handle.net/10539/24279.

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A dissertation submitted to the Faculty of Engineering, University of the Witwatersrand, in fulfilment of the requirements for the degree of Master of Science in Engineering.
The requirement of the project was to design an automatic storage and retrieval system (AS/RS) to be incorporated into a flexible manufacturing cell (FMC) at the University of the Witwatersrand. This flexible manufacturing cell currently being developed in the Industrial engineering department consists of a CNC milling machine and a CNC turning centre supported by an automated materials handling system, and an integrated computer control system. The automated materials handling system consists of a loop conveyor, parts transfer device, tool changing robot and the AS/RS. All the devices of the materials handling system have been constructed from low cost items readily available or alternatively have been manufactured at the University. The research philosophy adopted was to produce a low cost FMC, using local technology and expertise, to produce a system that is both economically feasible and relatively simple to implement. The AS/IRS is computer controlled consisting of three axis, driven by direct current motors. The AS/RS has a storage matrix of sixteen pallets (four by four) and is able to operate autonomously. The controlling software was written in turbo Pascal and designed to allow interface with the other material handling devices. The software allows for future incorporation of scheduling rules such as first in first out, shortest operating time or a schedule desired by the user. The AS/RS also allows the system to generate managerial reports on the status of the system as well as feedback to the FMC supervisory computer. The design was carried out with the same philosophy used In the FMC i.e, to use low cost items to provide an economically feasible design that is both flexible yet simple to incorporate within a FMC. In conclusion the AS/RS performs the required pick and place function with sufficient accuracy to ensure that parts are correctly positioned. The controlling program of the AS/RS functions correctly in terms of controlling the AS/RS. The AS/RS is fully autonomous in all operations. The AS/RS has the following specifications : Value Units Accuracy 3.67 mm Repeatability 7.2 mm Resolution 0.00977 mm Average pick & place time 41.6 s X Axis travel 1000 mm Y Axis travel 640 mm Z Axis travel 420 mm Lifting capacity 20 N Gripping force 10 N Degrees of freedom 3 The design can be further improved by using stepper motors instead of direct current motors to provide a finer control in terms of velocity and position accuracy. A!though the stepper motors need to have the same price for performance characteristics.
AC 2018

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Dissertations / Theses on the topic 'Automated storage systems'

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