Severin Kaderli
68ce3e0dbe
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Signed-off-by: Severin Kaderli <severin@kaderli.dev>
83 lines
4.3 KiB
TeX
83 lines
4.3 KiB
TeX
% !TeX program = lualatex
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%%
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\documentclass[
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paper=a1,
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landscape,
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boxstyle=plain,
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style=plain, % Stil für Header/Footer einzeln wählbar über title-style/footer-style, default ist plain
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%invert-colors % Orange/Blau im title,footer,logo getauscht. einzeln anwählbar über invert-title-colors,invert-footer-colors,invert-logo-colors
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]{bfhsciposter}
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%Sprache
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\usepackage[autostyle]{csquotes}
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\graphicspath{ {poster/assets/} }
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\begin{document}
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\title{Inductive Short-Range Communication Channel}
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\author{Severin Kaderli}
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\institute{Bern University of Applied Sciences}
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%\inst kann in den Autor und Institutsfeldern genutzt werden um eine Zuordnung zu ermöglichen. Bei Nummerierung ist der Nutzer dafür verantwortlich Konflikte mit \thanks zu vermeiden.
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%\titlegraphic{\includegraphics[width=10cm]{example-image}}
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\footerqrcode{https://magsend.kaderli.dev}
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\footer{Author: Severin Kaderli\\Advisor: Dr. Reto König\\Expert: Thomas Jäggi}
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%Instituts/Sponsorenlogos von links nach rechts
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%\footergraphics{
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% \includegraphics[height=\height]{example-image}
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% \includegraphics[height=\height]{example-image}
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%}
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\begin{tcbposter}[
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poster={
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columns=4,
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rows=9,
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spacing=2.5cm,
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},
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boxes = {
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frame hidden,
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},
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]
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\begin{posterboxenv}[,BFH-abstract,title=Abstract]{name=abstract,column=1,row=1,span=2,rowspan=4}
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In this thesis, I research an alternative short-range wireless communication method that uses
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magnetic induction instead of conventional radio waves for transmission of data, and point out the advantages and disadvantages of magnetic induction as a communication channel.
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For demonstrating the communication method, I create a prototype implementation of a simple communication protocol that utilizes magnetic induction and that can be run using components found in everyday devices such as a smartphone and a laptop.
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At the end, I benchmark the prototype implementation under multiple conditions and configurations to illustrate how feasible and robust the communication is and if it is viable as an alternative to radio wave communication.
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\end{posterboxenv}
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\begin{posterboxenv}[,BFH-plain,title=Solution]{name=solution,column=1,row=5,span=2,rowspan=5}
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The solution that I created for my thesis consists of two parts: a laptop that acts as the sender and a smartphone that acts as the receiver. The communication between the devices works over magnetic induction using a simple protocol.
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On the sending side, by putting controlled stress on the processor of the laptop, an attempt can be made to manipulate the magnetic field that gets generated around the CPU. By manipulating the magnetic field in a controlled way, a payload signal can be encoded into the field. The sender was implemented as a website which allows the user to input a text, which then gets transmitted.
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On the receiving side, a smartphone is used to receive the signals from the magnetic field. By putting the smartphone on top of the sender, the magnetic field emitted by the CPU can be measured using a magnetometer, which is a sensor that is available in most modern smartphones. The received signal is then decoded and the contents of the payload can be displayed. This part was realized as a native Android application, which allows the user to listen for data signals in the magnetic field and display them on the screen.
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\end{posterboxenv}
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\begin{posterboxenv}[,BFH-plain,title=Results]{name=abstract,column=3,row=1,span=2,rowspan=4}
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The results of my thesis is a pair of applications and a protocol that I call together \textbf{MagSend}.
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MagSend allows the user to send small messages of up to 16 characters over a small distance using magnetic induction. The speed of the transmission is very slow with about 1 bit/s, and it is very susceptible to wrong results when other applications already use the CPU on the laptop or by moving the receiver during the transmission.
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In the future, MagSend could be improved by incorporating more sophisticated error detection methods and by increasing the transmission data rate.
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\end{posterboxenv}
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\begin{posterboxenv}[BFH-plain]{name=notitle,column=3,row=4,span=2,rowspan=4}
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\centering
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\includegraphics[width=\linewidth]{applications.png}
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\captionof{figure}{MagSend Applications: Website for sending on the left; App for receiving on the right}
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\end{posterboxenv}
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\end{tcbposter}
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\end{document}
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