Alstom Power i Växjö arbetar med utveckling och försäljning av bland annat elektrofilter tillrökgasreningssystem vid olika typer av miljövårdsanläggningar för t.ex. kraftverksindustrin.Dessa elektrofilter kontrolleras och regleras med hjälp av styrutrustning uppbyggd av ettantal styrenheter som idag kommunicerar via en egentillverkad standard kallad ?Fläktbuss?. Föratt övervaka detta system vill man använda handburna PDA och kommunicera med Fläktbussenvia USB. För att få kommunikationen mellan USB och Fläktbuss att fungera krävs någon form avaktiv konvertering.Detta examensarbete kommer att ta upp så väl problematik och lösningar kring detproblem som finns i samband med denna konvertering..

Rapporten behandlar en undersökning av SET (Secure Electronic Transacion) vilket är ett system för säkra kontokortsbetalningar över Internet. Min undersökning har inkluderat företag och banker som erbjuder sina kunder möjligheten att betala varor med SET. Rapporten tar upp vilka åsikter och erfarenheter parterna har när det gäller SET och dess framtid som betalningssätt.I rapporten behandlas Internet och dess uppbyggnad, elektronisk handel och olika sätt att betala varor som beställs via Internet, kryptering och vad som krävs för att ett betalningssystem skall anses säkert samt SET och dess funktioner vid betalning över Internet.Jag har genom litteraturstudier, intervjuer och enkäter kommit fram till att SET är en bra teknik, men som ännu inte slagit igenom hos användarna. Bankerna tror på SET som betalningssystem, medan företagen anser att SET troligtvis spelat ut sin rätt..

The report aims to investigate how well a certain type of affordable embedded single board computer can hold up against today's more expensive computers in a computer system by doing various tests on a system with the specified requirements. The system has a Raspberry Pi as the single board computer which task is to control a camera based on coordinates obtained from a server as well as capture and stream a video signal on a network.The researches were conducted to check how much network traffic a single-chip computer sent in different video formats and how much CPU utilization was required. Studies were also made to ensure the accuracy of the camera control. The researches have been experimental, where several tests have been performed and analyzed.The results show that a sufficiently good accuracy can be obtained from the camera steering unit, in which two different servos have been investigated. When the video format MJPEG and H.264 are used, the single-chip computer is able to transmit a video signal up to 1280x720 at 15 fps.

This study is based on an examination of students? habits of using the Internet in formal and informal environments. The focus within this study is on what kind of activities students use the Internet for and how and if their teacher connect the students actual usage of the Internet to base the education in school on it. What we have discovered in this report is that the student in this examination uses the Internet as a tool for communicative and entertaining purposes. Though, the use of the Internet is different depending on which physical environment it is situated in.

This thesis considers the development of the software for an, newly developed, embedded real-time control system, based on a Periferal Interface Controller (PIC). The control system is developed to be used for several different applications. In this thesis work, software for two different applications are developed. The first task is a time controlled system, while the other task is implementation of aPI-/PID-controller. A user interface is also developed and implemented.The time controlled system is an automatic horse feeder, which is used for feeding horses at certain predefined points in time.

The report is the result of a master thesis at ENEA AB during the fall of 2009. Itaims to create a specification of flash memory management system which focuseson power efficiency and low RAM usage for embedded systems, and to design andimplement a prototype of such a system to facilitate further development toward thecreated specification. The system used by ENEA today is a Flash Translation Layer(FTL). It has a complex structure which prohibits modifications and customization,therefore a new flash memory management system needs to be developed.The suggested solution uses a translation layer called Metadata FTL (MFTL), wherefile system metadata and userdata are separated from each other in order to improveperformance. The partition holding userdata uses a block-level mapped translationlayer system called Fully Associative Sector Translation FTL.

The report aims to investigate how well a certain type of affordable embedded single board computer can hold up against today's more expensive computers in a computer system by doing various tests on a system with the specified requirements. The system has a Raspberry Pi as the single board computer which task is to control a camera based on coordinates obtained from a server as well as capture and stream a video signal on a network.The researches were conducted to check how much network traffic a single-chip computer sent in different video formats and how much CPU utilization was required. Studies were also made to ensure the accuracy of the camera control. The researches have been experimental, where several tests have been performed and analyzed.The results show that a sufficiently good accuracy can be obtained from the camera steering unit, in which two different servos have been investigated. When the video format MJPEG and H.264 are used, the single-chip computer is able to transmit a video signal up to 1280x720 at 15 fps.

Allt större och större andel företag väljer att presentera och förmedla varor och tjänster via e-handel. En viktig aspekt vid e-handel är att kunden känner förtroende för e-handelsapplikationen och företaget. Denna rapport redogör för vilken inverkan multimediala inslag har för förtroendet av en e-handelsapplikation, vid initialt användande. En undersökning har genomförts med hjälp av en kooperativ utvärdering av fyra e-handelsapplikationer vilka innehåller olika typer av multimediala inslag har.Resultatet av undersökningen visar att multimediala inslag inverkar positivt på förtroendet för e-handelsapplikationer. Däremot finns indikationer på att för hög grad av multimedialt inslag inverkar negativt på förtroendet för e-handelsapplikationer..

Business across the Internet has increased in recent years and most companies that are selling trips have increased their sales online. Many companies that are selling trips strive for customers to receive and experience a personal service online. The meeting between the client and a webpage service system on the Internet should work. Service encounters are an essential part of the contact between customer and company and play a big part in how the first impression is perceived by the customer. To understand how a service encounter works, meeting face to face, companies need to understand how customers perceive that meeting.

Problem: Hur såg kundrelationerna ut innan det nya IT-systemet infördes och hur ser kundrelationerna ut med ett nytt IT-system? Kundrelationer som tidigare har hanterats via telefon eller på plats har ersatts av dagens lösning med ett IT-system som går att komma åt via Internet och ger mer möj-lighet till självbetjäning. Detta leder till frågorna: Vilka för-ändringar har IT-systemet medfört? Hur har interaktionen påverkats?Syfte: Att beskriva och förklara hur införandet av ett nytt IT-system påverkat interaktionen (relation) mellan ?kund? och leverantör vid en tidpunkt 5 år efter systemets införande. Med kund avses golfspelare och med leverantör avses golfklubb.Teori & Metod: Teoriavsnittet består av två delar.

This report is a description of a developed educational simulator over rail vehicles and its components. The simulator is a hardware-based prototype over a door system on rail vehi- cles. System specialists and technicians will use the prototype. The Simulator should give the user a technical demonstration on how components work in a door system. The proto- type consists of motor, switch, relay and sensor.

The usage of internet is growing significantly every year in today?s society and whether you like or not, the internet has an influence in your life. It is therefore important to find out how people are affected by its use. We have through our study interviewed a number of people that uses internet on a day to day basis, who have agreed to live without internet access for a period of time. We started out by interviewing these people about their internet usage and what it means to them, then proceeded with their non-internet access period.

This report is a description of a developed educational simulator over rail vehicles and its components. The simulator is a hardware-based prototype over a door system on rail vehi- cles. System specialists and technicians will use the prototype. The Simulator should give the user a technical demonstration on how components work in a door system. The proto- type consists of motor, switch, relay and sensor.

A degree project has been carried out at Motion Control, Västerås. The degreeproject ?Grafisk Skärm för Inbyggda System? have developed a first prototype of anembedded system with a display, a graphical user interface with touchscreen andpossibilities to communicate with external units.The work initiated with surveys of critical components. A technical specification forthe desired end product was developed. With the technical specification as support,design specifications for hardware and firmware were developed.After the specifications were done, a circuit diagram was developed and a circuitboard was made.

Background: Internet is a new phenomenon; small companies have only used Internet a couple of years. Internet created a lot of new possibilities for the companies. Internet is a new marketing and communication channel for the company. Purpose: The purpose of this thesis is to examine how small companies can use Internet as a strategic tool. Another purpose of this thesis is to generate a better understanding of the application of Internet in small companies.