Search results for "590"
showing 10 items of 644 documents
Instrumentation for High Availability Systems
2004
Masteroppgave i informasjons- og kommunikasjonsteknologi 2004 - Høgskolen i Agder, Grimstad I denne oppgaven har vi sett på ulike industri standarder for instrumentering. Vi har utviklet en instrumenteringsteori for instrumentering av systemer som krever høy tilgjengelighet. Igjennom et teknologistudium har vi sammenlignet en rekke teknologier mot instrumenteringsteorien. Vi har laget en prototyp for å vise konseptene i instrumenteringsteorien. Denne prototypen bruker ”Enterprise Instrumentation Framework” som er et applikasjonsgrensesnitt, som utvider ”Windows Management Instrumentation” eksisterende hendelse, logging og sporings mekanismer allerede innebygd i Windows. ”Enterprise Instrume…
Anvendelsesområder og sikkerhetsløsninger for RFID-teknologi i helsesektoren
2004
Masteroppgave i informasjons- og kommunikasjonsteknologi 2004 - Høgskolen i Agder, Grimstad Radio Frequency Identification (RFID) er en teknologi som inneholder mange muligheter, spesielt i sammenheng med annen mobil kommunikasjonsteknologi. Ved Sørlandet Sykehus HF i Arendal ønskes en øket identitetssikring og kvalitetskontroll på prøver som blir analysert ved laboratoriet. Det har derfor vært ønskelig å se på hvordan RFID-teknologien kan benyttes i sammenheng med rutiner for prøvetaking, og hvilke begrensninger og muligheter som ligger i lagring av sensitiv informasjon i RFID-brikker. På bakgrunn av observasjoner, intervjuer og oppfølgingsmøter med nøkkelpersoner ved sykehuset har det vær…
Overføring av prosessdata via WAP
2000
Masteroppgave i informasjons- og kommunikasjonsteknologi 2000 - Høgskolen i Agder, Grimstad Denne oppgaven ser på mulighetene for å overføre prosessdata via en WAP-telefon. Prosessdataen som skal overføres er et EKG-signal. EKG er et signal som beskriver forandringer i elektrisk aktivitet på hjertet. En WAP-telefon skal i denne oppgaven fungere som en alarm som en hjertepasient hele tiden har med seg. Dersom pasienten slår alarm, skal WAP-telefonen hente ut pasientens EKG fra en database og sende disse til en alarmsentral, der det skal være mulig og følge pasientens utvikling. Et EKG signal har en båndbredde fra 0-150 Hz. Det er mulig å kode dette signalet i forskjellige formater. Disse for…
Balanced scorecard as a strategic management tool : the case of Seagull AS
2003
Masteroppgave i informasjons- og kommunikasjonsteknologi 2003 - Høgskolen i Agder, Grimstad Can investments in IT help a company to achieve its overall strategy and vision? Research over several years has resulted in mixed findings but several studies shows that the IT investments actually can result in better performance for companies. To achieve this it is important to align the IT investments with the overall business strategy and vision. The aim of this thesis is to see how Porter’s theories on competitive strategy and Kaplan and Norton’s Balanced scorecard can help the company to specify an IT system for the Operations department. The main idea is that the IT investment will support th…
Evaluation of OSA API's for 3rd party developers of Telco-services
2002
Masteroppgave i informasjons- og kommunikasjonsteknologi 2002 - Høgskolen i Agder, Grimstad Changes in business models introduce new actors to the telecom business. A set of new demands occurs and to handle this, a technical enabler like OSA is needed. Telenor R&D, which often provides Telco services in research projects, must form an opinion concerning this framework. Thus an evaluation of OSA is inquired. This thesis presents an introduction and evaluations of the OSA framework, further, a closer look at two of the OSA API’s (User Status and Terminal Capabilities) are made. To enhance the evaluation, Youngster has been utilized as an example of where the OSA framework can be used. An impl…
Optimized distribution of internationalized DRM-protected multimedia content
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad In this project we have looked into different streaming technologies, transport methods and ways of securing the content. We have performed an analysis of the performance in different scenarios, and tested different ways of distributing the content. We have also looked into some of the newest player technologies, and found the reasons for using them, or to look for alternatives. We have found that the best way to deliver content is to use multiple streams and assembling them on the client. This will take more bandwidth, but with todays internet connections this will be acceptable. The solution th…
Identifying Geographic Terms within Natural Language Text
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad The huge amount of textual data available in digital form in today’s world increases the need for methods that facilitate ease of access and navigability. Automatic extraction of keywords from text bodies is one promising approach. However, the relevance of keywords are context dependent, and extracting relevant keywords often requires a semantic analysis, simply because words may have different meanings in different contexts. It is well-known that resolving such word sense ambiguity automatically can be very challenging. When the topic of interest is geographic information, important keywords wo…
WLAN 802.11 b/g interference into ZigBee networks
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad ZigBee network as a low rate wireless personal area network (LR-WPANs) developed very fast nowadays. Since both ZigBee network and WLAN (802.11b/g) operate in the 2.4GHz unlicensed industrial scientific medical (ISM) frequency band, signal interference is possible to exist and result in signal degradation when devices are collocated in the same environment. This thesis analyzes, simulates and measures the interference and evaluates ZigBee network performance under the WLAN interference in terms of Packet Error Rate (PER) and Packet Loss Ratio (PLR). And the investigation emphasis of this thesis i…
Accurate Measurement and Visualization of Traffic Load in IEEE 802.11 WLANs
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad Wireless Local Area Networks (WLANs) based on the IEEE 802.11 standard are getting very popular these days, due to their support for new multimedia services and VoIP, and because WLANs are appearing on more and more small devices. This causes a steadily increasing load and becomes a challenge to network administrators who want to make their WLANs run efficiently and to keep the users satisfied. This Master thesis addresses the lack of efficient and affordable monitoring tools for those running WLANs, by developing an accurate method and for the visualization of traffic patterns and bandwidth util…
Modelling of the Universe : Simulation of the GPS (The Global Positioning System)
2007
Masteroppgave i informasjons- og kommunikasjonsteknologi 2007 – Høgskolen i Agder, Grimstad ParAbel is a project at Agder University College aims at mathematics and physics on Internet. One of the sub projects named SimReal [2] (Simulation in ‘Realfag’), which currently aims at simulating behaviours and properties of universe for both mathematics and physics studying. This project focuses on simulation of the GPS which is one sub task in SimReal. In this paper, on the one hand, we will set up a GPS simulation model and use it to be a teaching material for learning mathematics and physics. On the other hand, by testing the simulation model among the college students, we will discuss about th…