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- \section{Detailed Intermittent Execution Model}
- \subsection{System Description}
- \subsection{Execution Model}
- \begin{figure}
- \centering
- \begin{subfigure}{\linewidth}
- \includegraphics[width=\textwidth]{figs/plot_expr_8a_cropped.pdf}
- \caption{Trace of one power cycle.}
- % \label{fig:eval_voltage_trace}
- \end{subfigure}
- \begin{subfigure}{\linewidth}
- \includegraphics[width=\textwidth]{figs/plot_expr_8b_cropped.pdf}
- \caption{Detailed trace.}
- % \label{fig:eval_adaptivenss_finished_tasks}
- \end{subfigure}
- \caption{Voltage of the capacitor and Vdd, sampled 470uF and 1.5mA.}
- % \label{fig:}
- \end{figure}
- Three key observations that affect software designer's decision.
- \begin{itemize}
- \item \textbf{O1}: The capacitor voltage drops quickly to charge decoupling capacitor when system wakes-up ($t1$--$t2$).
- \item \textbf{O2}: The system executes at sub-voltage using the decoupling capacitor, even after power supply stops ($t4$--$t5$).
- \item \textbf{O3}: The decoupling capacitor discharges while the system is powered-off (after $t5$).
- \end{itemize}
- \begin{figure}
- \centering
- \includegraphics[width=\linewidth]{figs/detailed_execution_model.pdf}
- \caption{Traditional execution model of intermittent systems.}
- \label{fig:detailed_execution_model}
- \end{figure}
- \subsection{Impact on Power Efficiency}
- \begin{figure}
- \centering
- \includegraphics[width=\linewidth]{figs/plot_expr_5_cropped.pdf}
- \caption{caption}
- % \label{fig:introduction}
- \end{figure}
- \subsection{Impact on Predicting Power Failures}
- \begin{figure}
- \centering
- \includegraphics[width=\linewidth]{figs/plot_expr_6_cropped.pdf}
- \caption{caption}
- % \label{fig:introduction}
- \end{figure}
- Show percentage of execution time executed after power supply stops.
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