Introduce grauation work contains the detail characteristic of the marking of material elements incoming to store and work out from store. The main part of the work is aimed to shortening working time during material entry and work out from store. On ground ride out analyse has been suggested optimal soluti-on implementation marking of material elements into production company. Optimal type barcode has been designed and time schedule to implementation marking of material elements has been described. The technic-economical analysis proposed solution SAP console describing type and price component need to implementation this solution.

The master's thesis describes working procedures of the pharmaceutical warehousing and distribution, analyses actual methods of communication and identification and shows the weaknesses of this system. The work offers possible innovations, actual trends in the field of the automatic identification, warehouse management and proposes taking advantage of combination of voice recognition and bar-codes system. The thesis describes the new technology implementation, continuing the current practice and update of standard operating procedures.

This thesis describes the selection of an optimal information system for construction company UNICON, Ltd. Part of the thesis is analysis of current situation and based on it also selection of best solution of IS, which usage is then described.

This thesis deals with an optimization of goods flow in a store. In detail, the work provides information about technology of the automatic goods identification using barcode and RFID, and comparison the barcode and RFID readers.

The term Big Data has been gaining importance both at the academic and at the business level. Information technology plays a critical role in shipping since there is a high demand for fast transfer and communication between the parts of a shipping contract. The development of Automatic Identification System (AIS) is intended to improve maritime safety by tracking the vessels and exchange inter-ship information.  This master’s thesis purpose was to a) investigate in which business decisions the Automatic Identification System helps the shipowners and operators (i.e., users), b) find the benefits and perils arisen from its use, and c) investigate the possible improvements based on the users’ perceptions. This master’s thesis is a qualitative study using the interpretivism paradigm. Data were collected through semi-structured interviews. A total of 6 people participated with the following criteria: a) position on technical department or DPA or shipowner, b) participating on business decisions, c) shipping company owns a fleet, and d) deals with AIS data. The Thematic Analysis led to twenty-six codes, twelve categories and five concepts. Empirical findings showed that AIS data mostly contributes to make strategic business decisions. Participants are interested in using AIS data to measure the efficiency of their fleet and ports, to estimate the fuel consumption, to reduce their costs, to protect the environment and people’s health, to analyze the trade market, to predict the time of arrival, the optimal route and speed, to maintain highest security levels and to reduce the inaccuracies due to manual input of some AIS attributes. Finally, participants mentioned some AIS challenges including technological improvement (e.g., transponders, antennas) as well as the operation of autonomous vessels.  Finally, this master’s thesis contributes using the prescriptive and descriptive theories and help stakeholders to find new decisions while researchers and developers to advance their products.

No description available.

Dans cette thèse, nous nous intéressons au système d’identification automatique spatial lequel est dédié à la surveillancemaritime par satellite. Ce système couvre une zone bien plus large que le système standard à terre correspondant àplusieurs cellules traditionnelles ce qui peut entraîner des risques de collision des données envoyées par des navireslocalisés dans des cellules différentes et reçues au niveau de l’antenne du satellite. Nous présentons différentes approchesafin de répondre au problème de collision considéré. Elles ne reposent pas toujours sur les mêmes hypothèses en ce quiconcerne les signaux reçus, et ne s’appliquent donc pas toutes dans les mêmes contextes (nombre de capteurs utilisés,mode semi-supervisé avec utilisation de trames d’apprentissage et information a priori ou mode aveugle, problèmes liés àla synchronisation des signaux, etc...).Dans un premier temps, nous proposons des méthodes permettant la séparation/dé-collision des messages en modèle surdéterminé(plus de capteurs que de messages). Elles sont fondées sur des algorithmes de décompositions matriciellesconjointes combinés à des détecteurs de points temps-fréquence (retard-fréquence Doppler) particuliers permettant laconstruction d’ensembles de matrices devant être (bloc) ou zéro (bloc) diagonalisées conjointement. En ce qui concerneles algorithmes de décompositions matricielles conjointes, nous proposons quatre nouveaux algorithmes de blocdiagonalisation conjointe (de même que leur version à pas optimal) fondés respectivement sur des algorithmesd’optimisation de type gradient conjugué, gradient conjugué pré-conditionné, Levenberg-Marquardt et Quasi-Newton. Lecalcul exact du gradient matriciel complexe et des matrices Hessiennes complexes est mené. Nous introduisonségalement un nouveau problème dénommé zéro-bloc diagonalisation conjointe non-unitaire lequel généralise le problèmedésormais classique de la zéro-diagonalisation conjointe non-unitaire. Il implique le choix d’une fonction de coût adaptéeet à nouveau le calcul de quantités telles que gradient matriciel complexe et les matrices Hessiennes complexes. Nousproposons ensuite trois nouveaux algorithmes à pas optimal fondés sur des algorithmes d’optimisation de type gradientconjugué, gradient conjugué pré-conditionné et Levenberg-Marquardt.Finalement, nous terminons par des approches à base de techniques de détection multi-utilisateurs conjointe susceptiblesde fonctionner en contexte sous-déterminé dans lequel nous ne disposons plus que d’un seul capteur recevantsimultanément plusieurs signaux sources. Nous commençons par développer une première approche par déflationconsistant à supprimer successivement les interférences. Nous proposons ensuite un deuxième mode opératoire fondéquant à lui sur l’estimateur du maximum de vraisemblance conjoint qui est une variante de l’algorithme de VITERBI. / This PHD thesis concerns the spatial automatic identification system dedicated to marine surveillance by satellite. Thissystem covers a larger area than the traditional system corresponding to several satellite cells. In such a system, there arerisks of collision of the messages sent by vessels located in different cells and received at the antenna of the samesatellite. We present different approaches to address the considered problem. They are not always based on the sameassumptions regarding the received signals and are not all applied in the same contexts (they depend on the number ofused sensors, semi-supervised mode with use of training sequences and a priori information versus blind mode, problemswith synchronization of signals, etc.). Firstly, we develop several approaches for the source separation/de-collision in theover-determined case (more sensors than messages) using joint matrix decomposition algorithms combined withdetectors of particular time-frequency (delay-Doppler frequency) points to build matrix sets to be joint (block) or zero(block) diagonalized. Concerning joint matrix decomposition algorithms, four new joint block-diagonalization algorithms(with optimal step-size) are introduced based respectively on conjugate gradient, preconditioned conjugate gradient,Levenberg-Marquardt and Quasi-Newton optimization schemes. Secondly, a new problem called non-unitary joint zeroblockdiagonalization is introduced. It encompasses the classical joint zero diagonalization problem. It involves thechoice of a well-chosen cost function and the calculation of quantities such as the complex gradient matrix and thecomplex Hessian matrices. We have therefore proposed three new algorithms (and their optimal step-size version) basedrespectively on conjugate gradient, preconditioned conjugate gradient and Levenberg-Marquardt optimization schemes.Finally, we suggest other approaches based on multi-user joint detection techniques in an underdetermined context wherewe have only one sensor receiving simultaneously several signals. First, we have developed an approach by deflationbased on a successive interferences cancelation technique. Then, we have proposed a second method based on the jointmaximum likelihood sequence estimator which is a variant of the VITERBI algorithm.

Il existe différents systèmes de localisation de navires en mer qui favorisent une aide à la navigation et une sécurisation du trafic maritime. Ces systèmes sont également utilisés en tant qu’outils de surveillance et d’aide à la décision par les centres de surveillance basés à terre. Le Système d’Identification Automatique (AIS) déployé par l’Organisation Maritime Internationale, bien qu’étant le système de localisation de navires le plus utilisé de nos jours, est faiblement sécurisé. Cette vulnérabilité est illustrée par des cas réels et détectés tels que des usurpations d’identité ou des disparitions volontaires de navires qui sont sources de risques pour les navires, les infrastructures offshores et côtières et l’environnement.Nous proposons dans cette thèse une démarche méthodologique d’analyse et d’évaluation des messages AIS fondée sur les dimensions de la qualité de la donnée, dont l’intégrité considérée comme la plus importante de ces dimensions. Du fait de la structure complexe de l’AIS, une liste d'indicateurs a été établie, afin d’évaluer l'intégrité de la donnée, sa conformité avec les spécifications techniques du système et la cohérence des champs des messages entre eux et au sein d’un seul ou plusieurs messages. Notre démarche repose également sur l’usage d’informations additionnelles telles que des données géographiques ou des registres de navires afin d’évaluer la véracité et l’authenticité d’un message AIS et de son expéditeur.Enfin, une évaluation des risques associés est proposée, permettant une meilleurecompréhension de la situation maritime ainsi que l’établissement de liens de causalité entre les vulnérabilités du système et les risques relevant de la sécurité et sûreté de la navigation maritime. / At sea, various systems enable vessels to be aware of their environment and on the coast, those systems, such as radar, provide a picture of the maritime traffic to the coastal states. One of those systems, the Automatic Identification System (AIS) is used for security purposes (anti-collision) and as a tool for on-shore bodies as a control and surveillance and decision-support tool.An assessment of AIS based on data quality dimensions is proposed, in which integrity is highlighted as the most important of data quality dimensions. As the structure of AIS data is complex, a list of integrity items have been established, their purpose being to assess the consistency of the data within the data fields with the technical specifications of the system and the consistency of the data fields within themselves in a message and between the different messages. In addition, the use of additional data (such as fleet registers) provides additional information to assess the truthfulness and the genuineness of an AIS message and its sender.The system is weekly secured and bad quality data have been demonstrated, such as errors in the messages, data falsification or data spoofing, exemplified in concrete cases such as identity theft or vessel voluntary disappearances. In addition to message assessment, a set of threats have been identified, and an assessment of the associated risks is proposed, allowing a better comprehension of the maritime situation and the establishment of links between the vulnerabilities caused by the weaknesses of the system and the maritime risks related to the safety and security of maritime navigation.

<p>У докторској дисертацији је разматрано прихватање информационих технологија у логистичким предузећима. Формирана су два истраживачка модела: DOI-TOE-1 и DOI-TOE-2. На основу DOI-TOE-1 модела утврђено је да фактори директне и индиректне предности, подршка топ-менаџмента, регулаторна подршка државе и ресурсна подршка државе имају позитиван статистички значајан утицај на прихватање е-пословања у предузећима која пружају логистичке услуге и предузећима која имају развијен сектор логистике. Испитивање је извршено над прикупљеним подацима у Републици Србији, Републици Хрватској, Босни и Херцеговини, Црној Гори и Републици Македонији. На основу DOI-TOE-2 модела утврђено је да у предузећима која пружају логистичке услуге у Републици Србији статистички значајан утицај имају фактори: број запослених и број инжењера логистике у предузећу на прихватање система за управљање складиштем, број инжењера логистике у предузећу и обим логистичких услуга на прихватање система за управљање транспортом, обим логистичких услуга на прихватање технологије електронске размене података, број запослених у предузећу на прихватање cloud computing технологије, број ИТ инжењера у предузећу на прихватање технологије радио-фреквентне идентификације и број запослених у предузећу на прихватање бар-код технологије.</p> / <p>U doktorskoj disertaciji je razmatrano prihvatanje informacionih tehnologija u logističkim preduzećima. Formirana su dva istraživačka modela: DOI-TOE-1 i DOI-TOE-2. Na osnovu DOI-TOE-1 modela utvrđeno je da faktori direktne i indirektne prednosti, podrška top-menadžmenta, regulatorna podrška države i resursna podrška države imaju pozitivan statistički značajan uticaj na prihvatanje e-poslovanja u preduzećima koja pružaju logističke usluge i preduzećima koja imaju razvijen sektor logistike. Ispitivanje je izvršeno nad prikupljenim podacima u Republici Srbiji, Republici Hrvatskoj, Bosni i Hercegovini, Crnoj Gori i Republici Makedoniji. Na osnovu DOI-TOE-2 modela utvrđeno je da u preduzećima koja pružaju logističke usluge u Republici Srbiji statistički značajan uticaj imaju faktori: broj zaposlenih i broj inženjera logistike u preduzeću na prihvatanje sistema za upravljanje skladištem, broj inženjera logistike u preduzeću i obim logističkih usluga na prihvatanje sistema za upravljanje transportom, obim logističkih usluga na prihvatanje tehnologije elektronske razmene podataka, broj zaposlenih u preduzeću na prihvatanje cloud computing tehnologije, broj IT inženjera u preduzeću na prihvatanje tehnologije radio-frekventne identifikacije i broj zaposlenih u preduzeću na prihvatanje bar-kod tehnologije.</p> / <p>Doctoral dissertation overviews the adoption of information technologies in logistics enterprises. Two research models were developed: DOI-TOE-1 and DOI-TOE-2. Based on the DOI-TOE-1 model, it was established that the determinants of direct and indirect advantage, top management support, government regulatory support and government resource support have a positive statistically significant influence on adopting e-business in companies providing logistics services and in companies with a developed logistics sector. The research was conducted using data from the Republic of Serbia, Republic of Croatia, Bosnia and Herzegovina, Montenegro and FYR Macedonia. Using the DOI-TOE-2 model, it was determined that in companies providing logistics services in the Republic of Serbia, statistically significant impact can be attributed to the following determinants: the number of employees and the number of logistics engineers in a company influences the warehouse management system adoption; the number of logistics engineers and the range of logistics services in a company influences the adoption of transportation management system; the range of logistics services in a company impacts the adoption of electronic data interchange technology; the number of employees in a company influences the cloud computing technology adoption; the number of IT engineers in a company impacts the adoption of the radio-frequency identification technology; and the number of employees in a company impacts the barcode technology adoption.</p>

<p>The purpose of this final thesis isto develop a model for justification and evaluation of RFID technology. RFID is a new, relatively untested, technology using radio signals for automatic identification of different objects. Our theoretical frame of references focuses on research about RFID and implementation iss ues, we also conducted case studies and interviews in order to learn about RFID. Most RFID installations of today are Pilots or early adopters wanting to try new technology. A lot of the written sources were reports from consultancy firms or suppliers of technology. </p><p>Implementing RFID in real environment gave important insights into potentials and limitations of the technology. It proved that it is difficult to achieve sufficient readability in a steel environment. We also learned that one should not underestimate the time for installation and tuning in order to meet higher readability. The project finally resulted in an iterative model for justification and evaluation of RFID technology.</p>