Fredriksson, Mathias (2008) Mobiltelefonbaserad kommunikation i gymnasieskolan. Mobile communication in upper secondary school. Examensarbete 15 högskolepoäng, SÄL3:II, Lärarutbildningen, Malmö högskola.Detta examensarbete bygger på att jag, genom ett pilotprojekt i kombination med programutveckling, undersöker om man kan underlätta inlämningen av loggböcker för eleverna i gymnasiet, genom att konstruera ett program som ger dem möjligheten att lämna in loggboksinlägg, i så många kurser som möjligt, via sina mobiltelefoner.Viktigt är att frågeställningarna i arbetet ska ge svar på elevernas uppfattning om huruvida vi kan påverka inlämningsfrekvensen och huruvida lärare/elever kan tänka sig använda sig av andra kommunikationsmetoder, än de traditionella. Jag vill också utvärdera resultatet av intervjuerna, min mobilapplikation. Metod valet blev en fokuserande intervju för att ta reda på vad respondenterna tyckte var viktigt. Därefter programmerades ett lösningsförslag i språket J2ME och arbetet slutställdes i denna rapport. Resultatet visade att en stor del av loggboksinlämningarna kunde vara mer frekvent om eleverna bara förstår varför de ska utföra loggboksinläggen. Min slutsats är också att inlämningsfrekvensen av reflektioner skulle öka med ett mobilbaserat inlämningssystem på grund av att trögheten i intranätet försvinner.

<p>Nowadays, GPS Mobile has already become important part of our life. GPS is widely used for citizen and military. For military, they could use GPS to navigate the missile or space flight. For citizen, people use GPS, especially GPS Mobile, to navigate car. GPS also helps people to find their way to home. GPS are widely use on, police, company manage system, agriculture and so on. GPS Mobile is the most familiar device for all of us to use. To combine use GPS Mobile and Google Map, people can get their currently location and shortcut to their destination. Also, we can get information from the Google map, like shopping place, bus station and so on. The main purpose of our project is to help people reach this aim. By using our software, you can find your location on the Google map. When you travel abroad, you can have your own language map on the GPS mobile, easily and quickly. That’s really convenience. The most wonderful part, you can play game with your friend by using our software. What you need to do, it is just send a message to anyone you care about and then you can get their location and show it on the map. So, even it is a far distance between you and your friend. You can have fun together. That is our software Findyourfriendlocation.</p>

Nowadays, GPS Mobile has already become important part of our life. GPS is widely used for citizen and military. For military, they could use GPS to navigate the missile or space flight. For citizen, people use GPS, especially GPS Mobile, to navigate car. GPS also helps people to find their way to home. GPS are widely use on, police, company manage system, agriculture and so on. GPS Mobile is the most familiar device for all of us to use. To combine use GPS Mobile and Google Map, people can get their currently location and shortcut to their destination. Also, we can get information from the Google map, like shopping place, bus station and so on. The main purpose of our project is to help people reach this aim. By using our software, you can find your location on the Google map. When you travel abroad, you can have your own language map on the GPS mobile, easily and quickly. That’s really convenience. The most wonderful part, you can play game with your friend by using our software. What you need to do, it is just send a message to anyone you care about and then you can get their location and show it on the map. So, even it is a far distance between you and your friend. You can have fun together. That is our software Findyourfriendlocation.

由於電腦運算及通訊科技的蓬勃發展，許多企業已開始透過網際網路提供創新的產品及服務，或與商業夥伴進行各式各樣的商業活動。而面對網際網路所帶來的衝擊，過去以大型主機及主從式為主的運算架構已逐漸無法應付多變的需求。取而代之的是三層式或多層式架構，以及分散式運算環境。 　　從另一方面來看，行動通訊正開始蓬勃發展，許多廠商看好行動裝置上的應用，並認為這將會是未來軟體發展的重要方向。然而不同的行動裝置，其硬體規格不同、作業系統也不同，因此如果要在行動裝置上開發應用程式，必須要考慮程式跨平台的問題。否則一旦寫好的程式要放到各種不同作業系統的行動裝置上，就必須重新改寫，這將造成軟體從業人員相當大的困擾。 　　因此本研究欲從設計樣版的角度，以J2ME與J2EE為平台，提出一個能整合行動無線應用與企業級資訊系統的多層式資訊架構，並以醫院預約掛號系統作為系統展示雛型。本研究將系統分為Client Tier、Presentation Tier、Business Tier、Integration Tier、Resource Tier等五個層級，並實作MVC樣版與以服務為導向的介面（Façade樣版＋RemoteProxy類別）。透過此系統架構，將可以提高系統元件的再使用性與整體架構的擴充性。

<p>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. By using GPRS stethoscope sound can be sent over long distances. In that way a patient can be examined without having to meet his or her doctor. This report explains the work of constructing a wireless stethoscope using GPRS.</p>

<p>The PhonePages of Sweden is a company that develops software for mobile units, especially cell phones. This thesis treats the development of, and contingencies for, a mobile phone directory, using the limited resources found in a mobile unit. The project was implemented and executed at The PhonePages with the intention of creating a product to sell to a third party.</p><p>By studying different solutions, their benefits and drawbacks, an abstract picture of the product was constructed. Problems covered include compatibility problems caused by todays platform diversity as well as problems with saving, organizing and presenting data.</p><p>The main goal was to create a phone directory which does not make external information retrievals. The service should contain both company and personal information, with name and phonenumber. Complete address information should also be available. The application should also manage different priorities and logotypes for the company information. The application, that emerged as a result of our work at The PhonePages, works independently, without making connections to the Internet and is completely implemented in J2ME, all according to the requirement specification. In other words, the analysis of the different solutions led to a working application.</p>

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. By using GPRS stethoscope sound can be sent over long distances. In that way a patient can be examined without having to meet his or her doctor. This report explains the work of constructing a wireless stethoscope using GPRS.

A system consisting of a GPS-enabled phone and a database has been designed and implemented. This system is capable of recording the route traveled by a user and determining the mode of transport (walk, bicycle, car or bus) used. The Java code running in the GPS-enabled phone automatically records location data, determines critical locations for the trip, and transmits the locations to a central database using the wireless capabilities of the phone. As the route information arrives at the database, it is processed by the mode detection algorithm that determines the mode of transportation being used by the individual for this route. The mode detection algorithm uses travel time, speed, location of bus stops and knowledge of bus routes. The system was tested on experimental data collected from 100 trips (25 trips for each mode of transportation). The correct mode of transport was detected on 97% of the trips.

El procesamiento digital de imágenes comprende, según [Escalera 2001], aquellos algoritmos cuya finalidad es conseguir una mejora en la apariencia de la imagen original. Esta mejora consiste en resaltar u ocultar determinadas características de la imagen. El tratamiento último es aplicado por un operador humano, resultando en una imagen más comprensible por el usuario final. Existen en el país sobre diez millones de teléfonos celulares [SUBTEL 2005]. De éstos, la mayor parte de los teléfonos vendidos durante los años 2005-2006 corresponden a la llamada gama media, que agrupa, a grosso modo, a teléfonos con pantalla a color con precio inferior a los ochenta mil pesos (US$149) en Junio del 2006. Aproximadamente la mitad de estos teléfonos de gama media son camera-phones, es decir, incorporan una cámara fotográfica. Con el advenimiento de nuevos modelos de teléfonos celulares, paulatinamente los modelos de gama media se han ido dotando de mejores procesadores. Asimismo nuevos lenguajes de programación permiten, a costos comparativamente bajos, el desarrollo de aplicaciones y juegos que hasta hace poco sólo se encontraban en smartphones de gama alta. En particular, la llegada de la versión de Java para dispositivos móviles, J2ME [Sun 2005], ha ocasionado una avalancha de nuevas aplicaciones para teléfonos. Sin embargo, no existen muchas aplicaciones que permitan el mejoramiento de fotografías tomadas con camera-phone de forma móvil, usándose tradicionalmente para estos efectos el transferir las imágenes a un computador de escritorio y tratarlas posteriormente con un software como, por ejemplo, Picasa [Google 2006] o Photoshop. Se ha encontrado, además, que la mayoría de las aplicaciones móviles funcionan en una cantidad muy limitada de teléfonos de gama alta, puesto que han sido desarrollados para Symbian. Para la edición de imágenes en teléfonos de gama media, solo existe Photo Editor de Softex Digital [Softex 2006], desarrollado para teléfonos Benq-Siemens, el cual es un software muy básico, lo que en la práctica resulta poco útil si se intenta editar fotografías tomadas con el camera-phone. El objetivo de esta memoria es crear un software de procesamiento de imágenes para teléfonos celulares que sea capaz de editar fotografías tomadas por camera-phones de gama media.

This thesis describes two proposed schemes that could be used to secure mobile messaging (SMS/MMS) as well as one scheme that could be used to secure mobile content. The security services we considered in securing the mobile messages are confidentiality, authentication, non-repudiation and integrity. We used Identity Based Cryptography in order to secure the mobile messaging and Blowfish algorithm to secure the mobile content. Due to some of the disadvantages imposed by the Identity Based Cryptography, we recommended using it along with the RSA algorithm. The proposed schemes were implemented in java and tested on an actual device, Nokia N70. In addition, we measured the time required by each of the algorithms we used to encrypt/decrypt a certain number of bytes. We found that the time taken by RSA and Blowfish algorithms will not be noticeable by the user. However, since the implementation of the Identity Based Cryptography we used was not meant to run on mobile devices, we encountered a noticeable delay whenever encrypting/decrypting the data using this algorithm. Securing the SMS messages will make it to be considered as one of the proposed means that could be used to conduct m-commerce. In addition, securing the MMS messages and the mobile content will increase the usability and the reliability of the mobile phones especially to the users on the move. / Phone: +46735731360