<p>Radio Frequency Identification, RFID, är en teknik för spårning och informationsbärande som har funnits i över 50 år. Det är dock inte förrän på senare år som användandet av tekniken har fått en bredare spridning. I Sverige finns idag ett flertal företag som har implementerat lösningar som bygger på RFID-teknik men samtliga är begränsade till att endast användas inom ett företag i ett slutet system. På frågan hur RFID-teknik och dess standard EPC påverkar företag i en supply chain, det vill säga i ett öppet system, finns inget klart svar utan detta bör undersökas för respektive bransch där ett införande kan vara intressant. Denna studie är en sådan undersökning, genomförd inom den svenska dagligvarubranschen, med följande syfte:</p><p>Syftet med denna studie är att, på aktivitetsnivå, kartlägga flödet av fem utvalda produkter i dagligvarubranschen samt att för företag som ingår i dessa flöden skapa scenarier där RFID-teknik utnyttjas. Befintliga flöden liksom scenarier skall vidare analyseras för att identifiera möjliga effektivitetsförändringar till följd av användandet av RFID-teknik och dess standard EPC.</p><p>Resultatet av studien visar att ett införande av RFID-teknik skulle ha både positiv och negativ inverkan på den logistiska effektiviteten för de studerade företagen. Den största negativa förändringen härrör till kostnader och investeringar som måste göras för att RFID-teknik skall kunna utnyttjas i flödena, medan de största positiva förändringarna kan kopplas till tidsvinster och förbättrad spårbarhet.</p><p>En viktig slutsats är att det både för företag som idag använder streckkoder i stor utsträckning liksom för företag med lägre grad av streckkodsanvändning uppstår effektivitetsförbättringar. Storleken och omfånget på effektivitetsförbättringarna påverkas dock av graden av streckkodsanvändning i respektive företag. Positiva effektivitetsförändringar uppkommer främst genom att manuella kontroller kan elimineras och ersättas med automatiska avläsningar. Denna förändring minskar tidsförbrukningen i ett antal aktiviteter, vilket i sin tur påverkar kundservice och bidrar till kostnadsbesparingar. Ökade automatiska kontroller bidrar vidare till förbättrad spårbarhet i flödet. Med god kontroll av utflödet av varor kommer returflödet att effektiviseras och mer exakta återkallelser kan göras.</p><p>RFID-teknik kräver även ett ökat informationsutbyte mellan företag i supply chain. Detta innebär att affärssystemen måste integreras för att möjliggöra kommunikation, något som kan bli kostsamt i ett initialskede. Om det genomförs kan det dock leda till stora effektivitetsförbättringar i form av ökad kundservice och minskade kostnader tack vare bland annat bättre prognoser. Sammantaget innebär slutsatserna för studien att det uppkommer både positiva och negativa effektivitetsförändringar vid ett införande av RFID/EPC i dagligvarubranschen, där de största negativa effektivitetsförändringarna uppstår i implementeringsfasen och de positiva effektivitetsförändringarna gradvis ökar och då blir bestående.</p> / <p>The purpose of this thesis is to study how the use of RFID and EPC would affect the Swedish food retail supply chain. This was done by mapping the flow of five different products in the supply chain at activity level. During this work, five manufacturers, two distribution centres and two retail stores were visited and carefully studied. These visits resulted in a flowchart for each company describing the product flow, with particular attention to the use of barcodes. The flowcharts were then used to create scenarios for each company, describing how the flow would change when using RFID-technology. The current flow for each company was then compared with its RFID scenario and analysed to see how logistic efficiency would be affected by the use of RFID-technology.</p><p>The result of the study shows that all companies in the food retail supply chain would benefit from an implementation of RFID-technology. When comparing companies with a high usage of barcodes with companies where barcodes are little used, the conclusion can be drawn that both groups would experience improvements in different areas of logistic efficiency, but not necessarily to the same extent.</p><p>When considering the drawbacks of using RFID, the greatest disadvantages are the large investments and costs of implementing the technology. The largest costs arise in modification of business systems and for hardware investments needed to utilize the technology.</p><p>Apart from theses costs and investments, several positive changes in time consumption and traceability could be found. RFID/EPC makes it possible to replace manual checks with automatic ones, resulting in less time consumption and reduced staff throughout the supply chain. Furthermore, the possibility to trace every case and pallet results in more efficient and less expensive of product returns and recalls.</p>

Radio Frequency Identification, RFID, är en teknik för spårning och informationsbärande som har funnits i över 50 år. Det är dock inte förrän på senare år som användandet av tekniken har fått en bredare spridning. I Sverige finns idag ett flertal företag som har implementerat lösningar som bygger på RFID-teknik men samtliga är begränsade till att endast användas inom ett företag i ett slutet system. På frågan hur RFID-teknik och dess standard EPC påverkar företag i en supply chain, det vill säga i ett öppet system, finns inget klart svar utan detta bör undersökas för respektive bransch där ett införande kan vara intressant. Denna studie är en sådan undersökning, genomförd inom den svenska dagligvarubranschen, med följande syfte: Syftet med denna studie är att, på aktivitetsnivå, kartlägga flödet av fem utvalda produkter i dagligvarubranschen samt att för företag som ingår i dessa flöden skapa scenarier där RFID-teknik utnyttjas. Befintliga flöden liksom scenarier skall vidare analyseras för att identifiera möjliga effektivitetsförändringar till följd av användandet av RFID-teknik och dess standard EPC. Resultatet av studien visar att ett införande av RFID-teknik skulle ha både positiv och negativ inverkan på den logistiska effektiviteten för de studerade företagen. Den största negativa förändringen härrör till kostnader och investeringar som måste göras för att RFID-teknik skall kunna utnyttjas i flödena, medan de största positiva förändringarna kan kopplas till tidsvinster och förbättrad spårbarhet. En viktig slutsats är att det både för företag som idag använder streckkoder i stor utsträckning liksom för företag med lägre grad av streckkodsanvändning uppstår effektivitetsförbättringar. Storleken och omfånget på effektivitetsförbättringarna påverkas dock av graden av streckkodsanvändning i respektive företag. Positiva effektivitetsförändringar uppkommer främst genom att manuella kontroller kan elimineras och ersättas med automatiska avläsningar. Denna förändring minskar tidsförbrukningen i ett antal aktiviteter, vilket i sin tur påverkar kundservice och bidrar till kostnadsbesparingar. Ökade automatiska kontroller bidrar vidare till förbättrad spårbarhet i flödet. Med god kontroll av utflödet av varor kommer returflödet att effektiviseras och mer exakta återkallelser kan göras. RFID-teknik kräver även ett ökat informationsutbyte mellan företag i supply chain. Detta innebär att affärssystemen måste integreras för att möjliggöra kommunikation, något som kan bli kostsamt i ett initialskede. Om det genomförs kan det dock leda till stora effektivitetsförbättringar i form av ökad kundservice och minskade kostnader tack vare bland annat bättre prognoser. Sammantaget innebär slutsatserna för studien att det uppkommer både positiva och negativa effektivitetsförändringar vid ett införande av RFID/EPC i dagligvarubranschen, där de största negativa effektivitetsförändringarna uppstår i implementeringsfasen och de positiva effektivitetsförändringarna gradvis ökar och då blir bestående. / The purpose of this thesis is to study how the use of RFID and EPC would affect the Swedish food retail supply chain. This was done by mapping the flow of five different products in the supply chain at activity level. During this work, five manufacturers, two distribution centres and two retail stores were visited and carefully studied. These visits resulted in a flowchart for each company describing the product flow, with particular attention to the use of barcodes. The flowcharts were then used to create scenarios for each company, describing how the flow would change when using RFID-technology. The current flow for each company was then compared with its RFID scenario and analysed to see how logistic efficiency would be affected by the use of RFID-technology. The result of the study shows that all companies in the food retail supply chain would benefit from an implementation of RFID-technology. When comparing companies with a high usage of barcodes with companies where barcodes are little used, the conclusion can be drawn that both groups would experience improvements in different areas of logistic efficiency, but not necessarily to the same extent. When considering the drawbacks of using RFID, the greatest disadvantages are the large investments and costs of implementing the technology. The largest costs arise in modification of business systems and for hardware investments needed to utilize the technology. Apart from theses costs and investments, several positive changes in time consumption and traceability could be found. RFID/EPC makes it possible to replace manual checks with automatic ones, resulting in less time consumption and reduced staff throughout the supply chain. Furthermore, the possibility to trace every case and pallet results in more efficient and less expensive of product returns and recalls.

No description available.

O presente trabalho analisa a qualificação do tipo social do contrato de EPC (Engineering, Procurement and Construction) na ordem jurídica brasileira em face do tipo legal do contrato de empreitada. Investiga-se, portanto, a existência de identidade ou diferença entre ambos os tipos a fim de que se possa dar ao EPC a devida qualificação jurídica. Para isso, no Capítulo I, são apresentados os caracteres gerais dos contratos de construção, com foco na delimitação do espaço normativo específico ocupado pelo contrato de empreitada. No Capítulo II, apresenta-se o Contrato de EPC. São delineadas suas principais características gerais para que, em um segundo momento, possa-se aprofundar a análise a partir do emprego do método tipológico. Por fim, no Capítulo III, demonstra-se a forma como o regulamento dos contratos atípicos mistos em geral é construído para, posteriormente, analisar-se a formação do regulamento do EPC em seus principais pontos. / The present work analyzes the qualification of the social type of the EPC Contract (Engineering, Procurement and Construction) in the Brazilian legal order in consideration with the legal type of the works and supply contract. It is therefore investigated the existence of an identity or difference between the two contractual types in order to give the EPC the appropriate legal status. For this purpose, in Chapter I the general characteristics of construction contracts are presented, focusing on the delimitation of the specific normative space occupied by the works and supply contract. In Chapter II, the EPC Contract is presented. Its main general characteristics are presented so that, in a second moment, one can deepen the analysis using the typological method. Finally, Chapter III demonstrates the way in which the regulation of mixed atypical contracts in general is constructed, so that it can be analyzed the formation of the EPC regulation in its main points.

Com o aumento da produção mundial em proporções cada vez maiores, os processos industriais têm se tornando um desafio pela complexidade do seu gerenciamento. A identificação rápida e precisa de não conformidades é cada vez mais necessária e mais difícil de ser realizada. Este estudo propõe a integração do Controle de Engenharia com o Controle Estatístico de Processo, no monitoramento e controle de processos industriais, almejando a percepção mais rápida de anormalidades, visando à redução de problemas de especificação de produtos. Uma forma de autoajuste do controlador Proporcional-Integral e Derivativo (PID) é proposta, aumentando a robustez do sistema, empregando-se técnicas comumente utilizadas nos processos. O modelo matemático do processo, equacionando as relações das variáveis envolvidas, é estabelecido para determinação e especificação do controlador e de forma conjunta as cartas de controle são configuradas. O controlador projetado para a situação normal de operação atua no sentido de manter as variáveis de saída (controladas) dentro de especificações através do conhecimento de sua relação com as de entrada e de processo. As cartas de controle baseadas em modelos, monitorando os resíduos provenientes de ajustes de modelos ARIMA, acompanham as variações do processo, evitando variabilidade excessiva e possibilitando a detecção de comportamentos anormais, inclusive monitorando o desempenho do próprio controlador. Com a sinalização das cartas de controle, é realizada uma interferência na equação de ajuste do controlador. Empregando-se a simulação numérica, analisam-se os comportamentos do controlador e este, combinado com as cartas de controle. Falhas inseridas propositalmente, em cada variável controlada, foram devidamente sinalizadas. Estas sinalizações ocorreram mesmo em situações em que as variáveis estiveram mantidas dentro da especificação pelo controlador. Para o sistema de autoajuste, o aumento dos ganhos de contribuição das cartas de controle proporcionou maior acurácia das variáveis controladas (monitoradas). A integração proposta apresentou melhores resultados, quanto à manutenção das variáveis de saída próximas aos seus alvos, quando comparada com o controlador operando isoladamente. / With the increase of world production at bigger and bigger proportions, the industrial processes have become a challenge by the complexity of their management. The fast and precise identification of non-conformities is increasingly necessary and more difficult to be performed, preferably even before problems with product specification or waste can be considered. This study proposes the integration of Engineering Process Control with the Statistical Process Control, in monitoring and controlling of industrial processes, aiming the quicker perception of abnormalities, looking for the reduction of products specification problems. A form of self-adjustment of the Proportional-Integral and Derivative Controller (PID) is proposed, increasing the system robustness applying techniques commonly used in the processes. The mathematical model of the process, equating the relationship of the variables involved, is established to the determination and specification of the controller, and the control charts are configure in an integrated way. The controller projected to the normal operation situation, acts in the sense of keeping the exit variables (controlled) within the specifications through the knowledge of its relationship with that of the entrance and that of the process. The control charts based in models, monitoring the residues coming from the models adjustment ARIMA, follow up the process variations avoiding excessive variability and making it possible the detection of abnormal behaviors, even monitoring the performance of the controller itself. With the signalling of the control charts, an interference in the equation of adjustment of the controller is performed. Applying the numerical simulation, the controller behaviors are analyzed and this combined with the control charts. Intentionally inserted failures, in each controlled variable, were properly signalized. These signallings have happened even in situations where the variables were kept by the controller within the specification.. To the self-adjustment system, the increase of contribution gains of the control charts has provided greater accuracy of the controlled variables. The integration proposed has presented better results, in relation to maintain of the exit variables next to their targets, when compared to the controller operating in isolation.

Com o aumento da produção mundial em proporções cada vez maiores, os processos industriais têm se tornando um desafio pela complexidade do seu gerenciamento. A identificação rápida e precisa de não conformidades é cada vez mais necessária e mais difícil de ser realizada. Este estudo propõe a integração do Controle de Engenharia com o Controle Estatístico de Processo, no monitoramento e controle de processos industriais, almejando a percepção mais rápida de anormalidades, visando à redução de problemas de especificação de produtos. Uma forma de autoajuste do controlador Proporcional-Integral e Derivativo (PID) é proposta, aumentando a robustez do sistema, empregando-se técnicas comumente utilizadas nos processos. O modelo matemático do processo, equacionando as relações das variáveis envolvidas, é estabelecido para determinação e especificação do controlador e de forma conjunta as cartas de controle são configuradas. O controlador projetado para a situação normal de operação atua no sentido de manter as variáveis de saída (controladas) dentro de especificações através do conhecimento de sua relação com as de entrada e de processo. As cartas de controle baseadas em modelos, monitorando os resíduos provenientes de ajustes de modelos ARIMA, acompanham as variações do processo, evitando variabilidade excessiva e possibilitando a detecção de comportamentos anormais, inclusive monitorando o desempenho do próprio controlador. Com a sinalização das cartas de controle, é realizada uma interferência na equação de ajuste do controlador. Empregando-se a simulação numérica, analisam-se os comportamentos do controlador e este, combinado com as cartas de controle. Falhas inseridas propositalmente, em cada variável controlada, foram devidamente sinalizadas. Estas sinalizações ocorreram mesmo em situações em que as variáveis estiveram mantidas dentro da especificação pelo controlador. Para o sistema de autoajuste, o aumento dos ganhos de contribuição das cartas de controle proporcionou maior acurácia das variáveis controladas (monitoradas). A integração proposta apresentou melhores resultados, quanto à manutenção das variáveis de saída próximas aos seus alvos, quando comparada com o controlador operando isoladamente. / With the increase of world production at bigger and bigger proportions, the industrial processes have become a challenge by the complexity of their management. The fast and precise identification of non-conformities is increasingly necessary and more difficult to be performed, preferably even before problems with product specification or waste can be considered. This study proposes the integration of Engineering Process Control with the Statistical Process Control, in monitoring and controlling of industrial processes, aiming the quicker perception of abnormalities, looking for the reduction of products specification problems. A form of self-adjustment of the Proportional-Integral and Derivative Controller (PID) is proposed, increasing the system robustness applying techniques commonly used in the processes. The mathematical model of the process, equating the relationship of the variables involved, is established to the determination and specification of the controller, and the control charts are configure in an integrated way. The controller projected to the normal operation situation, acts in the sense of keeping the exit variables (controlled) within the specifications through the knowledge of its relationship with that of the entrance and that of the process. The control charts based in models, monitoring the residues coming from the models adjustment ARIMA, follow up the process variations avoiding excessive variability and making it possible the detection of abnormal behaviors, even monitoring the performance of the controller itself. With the signalling of the control charts, an interference in the equation of adjustment of the controller is performed. Applying the numerical simulation, the controller behaviors are analyzed and this combined with the control charts. Intentionally inserted failures, in each controlled variable, were properly signalized. These signallings have happened even in situations where the variables were kept by the controller within the specification.. To the self-adjustment system, the increase of contribution gains of the control charts has provided greater accuracy of the controlled variables. The integration proposed has presented better results, in relation to maintain of the exit variables next to their targets, when compared to the controller operating in isolation.

O presente trabalho analisa a qualificação do tipo social do contrato de EPC (Engineering, Procurement and Construction) na ordem jurídica brasileira em face do tipo legal do contrato de empreitada. Investiga-se, portanto, a existência de identidade ou diferença entre ambos os tipos a fim de que se possa dar ao EPC a devida qualificação jurídica. Para isso, no Capítulo I, são apresentados os caracteres gerais dos contratos de construção, com foco na delimitação do espaço normativo específico ocupado pelo contrato de empreitada. No Capítulo II, apresenta-se o Contrato de EPC. São delineadas suas principais características gerais para que, em um segundo momento, possa-se aprofundar a análise a partir do emprego do método tipológico. Por fim, no Capítulo III, demonstra-se a forma como o regulamento dos contratos atípicos mistos em geral é construído para, posteriormente, analisar-se a formação do regulamento do EPC em seus principais pontos. / The present work analyzes the qualification of the social type of the EPC Contract (Engineering, Procurement and Construction) in the Brazilian legal order in consideration with the legal type of the works and supply contract. It is therefore investigated the existence of an identity or difference between the two contractual types in order to give the EPC the appropriate legal status. For this purpose, in Chapter I the general characteristics of construction contracts are presented, focusing on the delimitation of the specific normative space occupied by the works and supply contract. In Chapter II, the EPC Contract is presented. Its main general characteristics are presented so that, in a second moment, one can deepen the analysis using the typological method. Finally, Chapter III demonstrates the way in which the regulation of mixed atypical contracts in general is constructed, so that it can be analyzed the formation of the EPC regulation in its main points.

Com o aumento da produção mundial em proporções cada vez maiores, os processos industriais têm se tornando um desafio pela complexidade do seu gerenciamento. A identificação rápida e precisa de não conformidades é cada vez mais necessária e mais difícil de ser realizada. Este estudo propõe a integração do Controle de Engenharia com o Controle Estatístico de Processo, no monitoramento e controle de processos industriais, almejando a percepção mais rápida de anormalidades, visando à redução de problemas de especificação de produtos. Uma forma de autoajuste do controlador Proporcional-Integral e Derivativo (PID) é proposta, aumentando a robustez do sistema, empregando-se técnicas comumente utilizadas nos processos. O modelo matemático do processo, equacionando as relações das variáveis envolvidas, é estabelecido para determinação e especificação do controlador e de forma conjunta as cartas de controle são configuradas. O controlador projetado para a situação normal de operação atua no sentido de manter as variáveis de saída (controladas) dentro de especificações através do conhecimento de sua relação com as de entrada e de processo. As cartas de controle baseadas em modelos, monitorando os resíduos provenientes de ajustes de modelos ARIMA, acompanham as variações do processo, evitando variabilidade excessiva e possibilitando a detecção de comportamentos anormais, inclusive monitorando o desempenho do próprio controlador. Com a sinalização das cartas de controle, é realizada uma interferência na equação de ajuste do controlador. Empregando-se a simulação numérica, analisam-se os comportamentos do controlador e este, combinado com as cartas de controle. Falhas inseridas propositalmente, em cada variável controlada, foram devidamente sinalizadas. Estas sinalizações ocorreram mesmo em situações em que as variáveis estiveram mantidas dentro da especificação pelo controlador. Para o sistema de autoajuste, o aumento dos ganhos de contribuição das cartas de controle proporcionou maior acurácia das variáveis controladas (monitoradas). A integração proposta apresentou melhores resultados, quanto à manutenção das variáveis de saída próximas aos seus alvos, quando comparada com o controlador operando isoladamente. / With the increase of world production at bigger and bigger proportions, the industrial processes have become a challenge by the complexity of their management. The fast and precise identification of non-conformities is increasingly necessary and more difficult to be performed, preferably even before problems with product specification or waste can be considered. This study proposes the integration of Engineering Process Control with the Statistical Process Control, in monitoring and controlling of industrial processes, aiming the quicker perception of abnormalities, looking for the reduction of products specification problems. A form of self-adjustment of the Proportional-Integral and Derivative Controller (PID) is proposed, increasing the system robustness applying techniques commonly used in the processes. The mathematical model of the process, equating the relationship of the variables involved, is established to the determination and specification of the controller, and the control charts are configure in an integrated way. The controller projected to the normal operation situation, acts in the sense of keeping the exit variables (controlled) within the specifications through the knowledge of its relationship with that of the entrance and that of the process. The control charts based in models, monitoring the residues coming from the models adjustment ARIMA, follow up the process variations avoiding excessive variability and making it possible the detection of abnormal behaviors, even monitoring the performance of the controller itself. With the signalling of the control charts, an interference in the equation of adjustment of the controller is performed. Applying the numerical simulation, the controller behaviors are analyzed and this combined with the control charts. Intentionally inserted failures, in each controlled variable, were properly signalized. These signallings have happened even in situations where the variables were kept by the controller within the specification.. To the self-adjustment system, the increase of contribution gains of the control charts has provided greater accuracy of the controlled variables. The integration proposed has presented better results, in relation to maintain of the exit variables next to their targets, when compared to the controller operating in isolation.

In this thesis work, two major problems confronting elections system in Africa; multiple registrations and diversion/shortages of election materials, taking the Nigerian content into consideration is addressed. These problems have been described as being so corrosive in nature such that ICTs in the form of eVoting if fully implemented will only compound or exacerbate the current situation due to poor ICTs awareness in the continent. However, in order to contain these problems with some form of ICTs tools along side the traditional election system, we proposed an RFID-based framework where voter’s identification and election materials are RFID-based. We believe this will enhance effective and efficient identification and tracking. Operations similar to the chain supply and inventory management are utilized. Also benefits resulting from the adoption of this framework; national ID card, national register, etc. are addressed. / isongb77@yahoo.com adetayoadedigba@yahoo.com

It goes without saying that cellular users of today have an insatiable appetite for bandwidth and data. Data-intensive applications, such as video on demand, online gaming and video conferencing, have gained prominence. This, coupled with recent innovations in the mobile network such as LTE/4G, poses a unique challenge to network operators in how to extract the most value from their deployments all the while reducing their Total Cost of Operations(TCO). To this end, a number of enhancements have been proposed to the ”conventional” LTE mobile network. Most of these recognize the monolithic and non-elastic nature of the mobile backend and propose complimenting core functionality with concepts borrowed from Software Defined Networking (SDN). In this thesis we shall attempt to explore some existing options within the LTE standard to mitigate large traffic churns. We will then review some SDN-enabled alternatives, and attempt to derive a proof based critique on their merits and drawbacks.