This project investigated the current market regarding Wireless net and the communication between the tools used for diagnostics/maintenance and an embedded system. Based on documentation obtained through interviews a demo system was created based on Bluetooth Low Energy (BLE) communication between an embedded system and an Android device.This report intends to describe the tools and methods used in the design of the demo system and the result of an analysis of the BLE communication.Bluetooth Low Energy is an exciting protocol with wide applicability within the industrial field. This project investigated the communicational possibilities between a Smartphone and a Raspberry Pi and based on the results that emerged the conclusion can be drawn that BLE is a protocol with many beneficial applications within industrial IT..

The aim of this project is to find a concept solution for a Wireless transmitting system, installed to transmit data from a hydrophone of the ocean floor down by a wave power generator to the office on shore. The project is a literature review in which previous observations and tests are analyzed and put together to find a solution. The result was a comprehensive solution that includes an acoustic modem to transfer captured information from the bottom to the surface, Wirelessly through the water. The information is then sent fron the surface on radio waves through the GSM network to the office on land. Between under and over water there are components to convert information between acoustic waves and radio waves, but also various types of modulation, such as amplitude and frequency modulation is required..

This project investigated the current market regarding Wireless net and the communication between the tools used for diagnostics/maintenance and an embedded system. Based on documentation obtained through interviews a demo system was created based on Bluetooth Low Energy (BLE) communication between an embedded system and an Android device.This report intends to describe the tools and methods used in the design of the demo system and the result of an analysis of the BLE communication.Bluetooth Low Energy is an exciting protocol with wide applicability within the industrial field. This project investigated the communicational possibilities between a Smartphone and a Raspberry Pi and based on the results that emerged the conclusion can be drawn that BLE is a protocol with many beneficial applications within industrial IT..

Inom området för telemedicin efterfrågas praktiska sätt för läkare att snabbt och tillförlitligt kunna ställa preliminära diagnoser. Genom att använda GPRS kan stetoskopljud överföras över långa avstånd. På så vis kan en patient bli undersökt utan att behöva träffa sin läkare. Den här rapporten förklarar arbetet med att konstruera ett trådlöst stetoskop som använder sig av GPRS. In the area of telemedicine practical methods are wantedfor a doctor to quickly and reliably be able to set a preliminary diagnose.

During spring 2012, six students at the Royal Institute of Technology in Stockholm carried out agroup project in the field of mechatronics as part of the thesis for the bachelor degree. The resultwas a robot with active balancing and the purpose of this report is to describe the development,manufacturing and problems that arose during the project. The finished robot has two wheelsmounted in line with each other, like a bicycle. Measurement data from an accelerometer and agyroscope are used together in a complementary filter for determining the angle from the verticalplane. For balancing, a PID controller was used to control the rotation of a reaction wheel, whenaccelerating causes a straightening torque.

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..

This report evaluates various methods that can be used to position a smartphone running the Android platform, without the use of any special hardware or infrastructure and in conditions where GPS is unavailable or unreliable; such as indoors. Furthermore, it covers the implementation of such a system with the use of a deterministic fingerprinting method that is reasonably device independent, a method which involves measuring a series of reference points, called fingerprints, in an area and using those to locate the user.The project was carried on behalf of Sigma, a Swedish software consulting company..

Free2Move AB is developing products for the market within Wireless communicationand identification, among those active RFID-tags. The company had an idea aboutproviding one of their active RFID tags with a GPS receiver and transmit positions viaan existing RFID protocol. Desire from the company was also the possibility to logpositions and measure temperature. The finished prototype should also be able to beactivated by movement. The company had proposal about components that were to beused in the project.

One of the essential needs of human beings is to be involved in a social context. The intention of this study was to see if the opportunity to have an iPod Touch, could make it possible for students with literacy difficulties to participate in the regular classes and if the implementation of iPod Touch in the school setting would result in informal learning outside the school. In this case study two pupils with literacy difficulties have been using an iPod Touch in their daily school activity. The pupils as well as their teachers have been interviewed about their experiences of implementing iPod Touch as a tool in the regular classroom teatching. The results indicate that iPod Touch can help students to be in inclusive education and that they use the iPod Touch outside school.

This project investigated the current market regarding Wireless net and the communication between the tools used for diagnostics/maintenance and an embedded system. Based on documentation obtained through interviews a demo system was created based on Bluetooth Low Energy (BLE) communication between an embedded system and an Android device.This report intends to describe the tools and methods used in the design of the demo system and the result of an analysis of the BLE communication.Bluetooth Low Energy is an exciting protocol with wide applicability within the industrial field. This project investigated the communicational possibilities between a Smartphone and a Raspberry Pi and based on the results that emerged the conclusion can be drawn that BLE is a protocol with many beneficial applications within industrial IT..

One of the essential needs of human beings is to be involved in a social context. The intention of this study was to see if the opportunity to have an iPod Touch, could make it possible for students with literacy difficulties to participate in the regular classes and if the implementation of iPod Touch in the school setting would result in informal learning outside the school. In this case study two pupils with literacy difficulties have been using an iPod Touch in their daily school activity. The pupils as well as their teachers have been interviewed about their experiences of implementing iPod Touch as a tool in the regular classroom teatching. The results indicate that iPod Touch can help students to be in inclusive education and that they use the iPod Touch outside school.

One of the essential needs of human beings is to be involved in a social context. The intention of this study was to see if the opportunity to have an iPod Touch, could make it possible for students with literacy difficulties to participate in the regular classes and if the implementation of iPod Touch in the school setting would result in informal learning outside the school. In this case study two pupils with literacy difficulties have been using an iPod Touch in their daily school activity. The pupils as well as their teachers have been interviewed about their experiences of implementing iPod Touch as a tool in the regular classroom teatching. The results indicate that iPod Touch can help students to be in inclusive education and that they use the iPod Touch outside school.

Konfigurationsprotokollet Wi-Fi protected setup (WPS) har vissa brister idess design gällande hur autentiseringen av den PIN-kod som används för attansluta en enhet till ett trådlöst nätverk är implementerad. Dessa brister kanutnyttjas av en attackerare för att utföra en bruteforce-attack som på enrelativt kort tid kan identifiera den korrekta koden. Detta arbete har tagit frammetoder för att motverka eller fördröja attacker mot WPS-protokollet sommed relativt enkla medel kan implementeras i befintliga nätverk. Genomutförda praktiska experiment där en fristående server upptäckt en attack ochgenomfört olika försvarsmetoder har de mekanismer som presenterats utvärderats.Slutsatsen är att den effektivaste metoden för att avbryta en bruteforce-attackmot protokollet är att automatiskt byta ut PIN-koden då en attack upptäcks..

I takt med att antalet mobiltelefoner har ökat har även efterfrågan på fler tjänster för dessa ökat. Detta är en av anledningarna till att WAP-tekniken skapats och att den har fått så stor uppmärksamhet. WAP, Wireless Application Protocol, är ett kommunikationsprotokoll som gör det möjligt att utveckla tjänster för mobila klienter. Den har utvecklats genom ett samarbete mellan en mängd olika företag och är idag en öppen standard. För att kunna utnyttja den nya tekniken och anpassa nya tjänster bör man tänka på vissa faktorer såsom begränsningar gällande klienten, säkerhet och gränssnittet mot användaren.

This paper describes a method for Wireless energy transfer via near-field electromagnetic inductionthat is inexpensive, simple and can be applied to almost any type of system, regardless of size andenergy demands.The method uses a primary unit consisting of an oscillator, amplifier and inductive coil thattransfers energy to a secondary unit consisting of a coil, rectifier and voltage regulator. Two typesof oscillators and several amplifier designs were realized and evaluated together with a multitudeof flat coils of both monofilar and bifilar type.The results show that it is important to use an oscillator whose frequency is dependent on theinductance of the connected transmission coil, such as the Colpitts oscillator. This is preferable toan oscillator with a preset frequency, such as a Schmitt-trigger oscillator..