Add short presentation
Signed-off-by: Severin Kaderli <severin@kaderli.dev>
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documentation/presentation/presentation.tex
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documentation/presentation/presentation.tex
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\documentclass[
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ngerman,
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18pt,
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authorontitle=true,
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]{bfhbeamer}
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%\usepackage[main=ngerman]{babel}
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% Der folgende Block ist nur bei pdfTeX auf Versionen vor April 2018 notwendig
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\usepackage{iftex}
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\ifPDFTeX
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\usepackage[utf8]{inputenc}%kompatibilität mit TeX Versionen vor April 2018
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\fi
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\usepackage{bytefield}
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\graphicspath{ {presentation/assets/} }
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%Makros für Formatierungen der Doku
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%Im Allgemeinen nicht notwendig!
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\let\code\texttt
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\setbeamertemplate{section page}[BFH-ruled]
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\AtBeginSection{\sectionpage}
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\title{Inductive Short-Range Communication Channel}
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\subtitle{Bachelorthesis}
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\author[S. Kaderli]{Severin Kaderli}
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\institute{Bern University of Applied Sciences}
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\begin{document}
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\maketitle
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\section{Demo}
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\section{Introduction}
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\begin{frame}{Goals}
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The goal of the thesis was to create a communication channel that utilizes magnetic induction with the help of readily available components.
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\end{frame}
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\begin{frame}{Magnetic Induction}
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Magnetic Induction (MI), also known as magnetic flux density or simply the magnetic field,
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is a physical quantity measured in Tesla T. The movement of electric charges in a conductor produces a magnetic field around the conductor.
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\end{frame}
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\section{Solution}
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\begin{frame}{MagSend}
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\begin{itemize}
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\item{Uses two devices}
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\item{A laptop as sender}
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\item{A phone as receiver}
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\item{Laptop modifies a magnetic field}
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\item{The phone measures the field}
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\end{itemize}
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\end{frame}
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\begin{frame}{Sending}
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\begin{figure}
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\fbox{\includegraphics[width=0.65\linewidth]{test_cases/t9.png}}
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\end{figure}
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\end{frame}
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\begin{frame}{Packet Format}
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\begin{itemize}
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\item{Header}
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\begin{itemize}
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\item{4 Bit}
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\item{Payload Length; Up to 16 bytes}
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\end{itemize}
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\item{Payload}
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\begin{itemize}
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\item{Bit stream of the ASCII Text}
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\item{Up to 16 characters}
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\end{itemize}
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\item{Checksum}
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\end{itemize}
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\end{frame}
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\begin{frame}{Packet Format}
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\framesubtitle{Structure}
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\begin{figure}
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\includegraphics[width=1\linewidth]{packet.png}
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\end{figure}
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\end{frame}
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\begin{frame}{Packet Format}
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\framesubtitle{Example for Text: "Test"}
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\begin{figure}
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\includegraphics[width=1\linewidth]{packet_test.png}
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\end{figure}
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\end{frame}
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\begin{frame}{Transmission}
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\begin{itemize}
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\item{Depending on the text, the website puts load on the CPU in a controlled way}
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\item{High signals are 1, and low signals are 0}
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\item{Packet is encoded using manchester encoding}
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\item{Preamble to indicate the start of a packet}
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\end{itemize}
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\end{frame}
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\begin{frame}{Transmission}
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\framesubtitle{Encoding}
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\begin{figure}
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\includegraphics[width=0.8\linewidth]{manchester_code.png}
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\end{figure}
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\footnote{https://commons.wikimedia.org/wiki/File:Manchester\_encoding\_both\_conventions.svg}
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\end{frame}
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\begin{frame}{Transmission}
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\framesubtitle{CPU Load}
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\begin{figure}
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\includegraphics[width=0.9\linewidth]{test_cases/t3_2.png}
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\end{figure}
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\end{frame}
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\begin{frame}{Transmission}
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\framesubtitle{CPU Load Example for Packet}
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\begin{figure}
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\includegraphics[width=0.9\linewidth]{cpu_test.png}
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\end{figure}
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\end{frame}
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\begin{frame}{Reception}
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The phone uses a magnetometer sensor to get the signal from the magnetic field. From that signals it deconstructs the packet to get to the text.
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\end{frame}
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\begin{frame}{Reception}
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\framesubtitle{Sensor Data}
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\begin{figure}
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\includegraphics[width=0.8\linewidth]{magnetic_induction_cpu.png}
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\end{figure}
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\end{frame}
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\begin{frame}{Reception}
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\framesubtitle{Sensor Data for Packet}
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\begin{figure}
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\includegraphics[width=0.9\linewidth]{magnetic_induction_test_packet.png}
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\end{figure}
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\end{frame}
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\begin{frame}{Use Cases}
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\begin{itemize}
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\item{Works without connectivity e.g. in airplane mode}
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\item{Works better under water than radio waves}
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\item{Possible applications for small data transmissions: similar to QR codes, 2FA}
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\end{itemize}
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\end{frame}
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\begin{frame}{Try It Yourself}
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\begin{columns}
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\begin{column}{.5\linewidth}
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https://magsend.kaderli.dev
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\end{column}
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\begin{column}{.5\linewidth}
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\begin{figure}
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\includegraphics[width=0.9\linewidth]{qr_app.png}
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\end{figure}
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\end{column}
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\end{columns}
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\end{frame}
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\section{Questions}
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\end{document}
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