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| author | Michal Hanus <mikehanus@protonmail.com> | 2024-04-01 17:16:39 +0200 |
|---|---|---|
| committer | Michal Hanus <mikehanus@protonmail.com> | 2024-04-01 17:16:39 +0200 |
| commit | 104b116ed2f1dd6ab1a21dc2b50a70121a33a807 (patch) | |
| tree | 1673ab360cbcc02fd177ae902bf5f928da1eb868 /text/labina.tex | |
| parent | dcae801533e050242d69c78ecc6b59a492a7024f (diff) | |
Lab tabulky
Diffstat (limited to 'text/labina.tex')
| -rw-r--r-- | text/labina.tex | 76 |
1 files changed, 70 insertions, 6 deletions
diff --git a/text/labina.tex b/text/labina.tex index 1e52302..eaabeaa 100644 --- a/text/labina.tex +++ b/text/labina.tex @@ -2,29 +2,29 @@ \textit{Každá section jak protokol, Co chci změřit, Fyzika - princip toho co měřím, čím to měřím, zapojení měřící techniky, tabulky, graf} -\section{Comunication range} +\section{Communication range} -One of main considaritation when choosing a IoT platfrom is communication range. Main source of attenuation of radio energy caused by electric field dispersion/diffusion of electric field. This effect if best desribed by \ac{FSPL}: +One of main consideration when choosing a IoT platform is communication range. Main source of attenuation of radio energy caused by electric field dispersion/diffusion of electric field. This effect if best described by \ac{FSPL}: \begin{equation} FSPL=\left( \frac{4 \pi d}{\lambda} \right) ^2 \end{equation} -Signal attenuation is also dependent on directivity of antennas and loss on connectors and \textbf{electrical wiring}. When antenna and transmition total \textbf{gain} is constant and can be added to equation like this: +Signal attenuation is also dependent on directivity of antennas and loss on connectors and \textbf{electrical wiring}. When antenna and transmission total \textbf{gain} is constant and can be added to equation like this: \begin{equation} A = D_{ANT} \cdot A_{RX} \cdot \left( \frac{4 \pi d}{\lambda} \right) ^2 \end{equation} -Where $D_{ANT}$ is directivity of antenna and $A_{RX}$ is total loss from \ac{RF} connector to \ac{LTE} modem. These must be accounted to only when maasuring on directly on LTE modem. +Where $D_{ANT}$ is directivity of antenna and $A_{RX}$ is total loss from \ac{RF} connector to \ac{LTE} modem. These must be accounted to only when measuring on directly on LTE modem. -This can be coverted to simplify calculation to decibel form: +This can be converted to simplify calculation to decibel form: \begin{equation} A = D_{ANT}^{[dB]} + A_{RX}^{[dB]} + 10 \cdot \log_{10} \left( \frac{4 \pi d}{\lambda} \right) ^2 \end{equation} -From this a maximal range can be simulated using \ac{RF} attenuators in laboratory enviroment by converting +From this a maximal range can be simulated using \ac{RF} attenuators in laboratory environment by converting \begin{equation} d = A_{max} @@ -81,3 +81,67 @@ Teorie mereni - Náhradní modely prostředí. Degradace signálu. Popis experimentální instrumentace a sestav. Spotřeba, packet drop, rychlost, latence závislá na útlumu (popř. intenzita bílého šumu) (vsechny protokoly) + +\section{Measurement} + +\begin{sidewaystable} + \centering + + \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|} + \hline + \multicolumn{2}{|c|}{Nominal} & + \multicolumn{3}{c|}{nRF modem} & + \multicolumn{2}{c|}{nRF FW} & + \multicolumn{6}{c|}{Power Kit II} \\ + \hline + $K_U$ & CL & $P_I$ & $Q_I$ & $SNR$ & $T_{lat}$ & $PD$ & $P_{TX}$ & $P_{RX}$ & W & $T_{TX}$ & $T_{RX}$ & $R_B$ \\ + + [dB] & [dB] & [dBm] & [dBm] & [dB] & [ms] & [\%] & [mA] & [mA] & [J/msg] & [$\mu$ s] & [$\mu$ s] & [kB/s] \\\hline + 0 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 3 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 6 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 10 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 13 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 16 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 20 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 23 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 26 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 30 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 33 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 36 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 40 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + \end{tabular} +\caption{NB-IoT / LTE-M measurements for message length = X B and added noise = X dBm} +\end{sidewaystable} + + + + +\begin{sidewaystable} + \centering + + \begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|} + \hline + \multicolumn{2}{|c|}{Nominal} & + \multicolumn{5}{c|}{nRF modem} & + \multicolumn{6}{c|}{Power Kit II} \\ + \hline + $K_U$ & CL & $RSSI$ & $RSSI-2$ & $SNR$ & $T_{lat}$ & $PD$ & $P_{TX}$ & $P_{RX}$ & W & $T_{TX}$ & $T_{RX}$ & $R_B$ \\ + + [dB] & [dB] & [dBm] & [dBm] & [dB] & [ms] & [\%] & [mA] & [mA] & [J/msg] & [$\mu$ s] & [$\mu$ s] & [kB/s] \\\hline + 0 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 3 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 6 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 10 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 13 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 16 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 20 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 23 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 26 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 30 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 33 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 36 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + 40 & -140 & -80 & 10 & 40 & 0.5 & 0.1 & 98 & 10 & 0.1 & 400 & 400 & 1 \\ \hline + \end{tabular} +\caption{DECT-NR+ measurements for message length = X B and added noise = X dBm} +\end{sidewaystable} |
