X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02.git/blobdiff_plain/3f9df02d779f83f3a6a564d667029cffcf6ce7e6..abd68e662c16e798caf51fb5ecd76d74ca100290:/doc/location/README.html?ds=inline diff --git a/doc/location/README.html b/doc/location/README.html index 0fb1b6a..11a6516 100644 --- a/doc/location/README.html +++ b/doc/location/README.html @@ -3,7 +3,7 @@ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> <head> -<!-- 2020-06-29 Mon 22:27 --> +<!-- 2020-06-30 Tue 17:14 --> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1" /> <title>Ninfacyzga-01 Manual</title> @@ -234,24 +234,24 @@ for the JavaScript code in this tag. <h2>Table of Contents</h2> <div id="text-table-of-contents"> <ul> -<li><a href="#orgb231d05">1. Location Logging</a> +<li><a href="#org9fe5754">1. Location Logging</a> <ul> -<li><a href="#orga7b5d26">1.1. Narrative</a></li> -<li><a href="#orgc6050dc">1.2. Description</a> +<li><a href="#org6b1a17d">1.1. Narrative</a></li> +<li><a href="#org57c152a">1.2. Description</a> <ul> -<li><a href="#org832c363">1.2.1. Hardware</a></li> -<li><a href="#orgbe37034">1.2.2. Software</a></li> -<li><a href="#org578c835">1.2.3. Output</a></li> +<li><a href="#orge971d48">1.2.1. Hardware</a></li> +<li><a href="#orgd6ea21a">1.2.2. Software</a></li> +<li><a href="#org2c5d288">1.2.3. Output</a></li> </ul> </li> -<li><a href="#org7bb3aad">1.3. Operating Procedures</a> +<li><a href="#org2c59433">1.3. Operating Procedures</a> <ul> -<li><a href="#orge393fe1">1.3.1. Initial Startup</a></li> -<li><a href="#orgcaf0980">1.3.2. Normal Startup</a></li> -<li><a href="#org73571fc">1.3.3. Normal Operation</a></li> -<li><a href="#orga82b5fb">1.3.4. Normal Shutdown</a></li> -<li><a href="#org5305842">1.3.5. Unscheduled Shutdown</a></li> -<li><a href="#org4a5c4af">1.3.6. End of Life Disposal</a></li> +<li><a href="#org6fcdbad">1.3.1. Initial Startup</a></li> +<li><a href="#org15d1661">1.3.2. Normal Startup</a></li> +<li><a href="#org989e70e">1.3.3. Normal Operation</a></li> +<li><a href="#orged87647">1.3.4. Normal Shutdown</a></li> +<li><a href="#org5d4c9cd">1.3.5. Unscheduled Shutdown</a></li> +<li><a href="#org00f1b85">1.3.6. End of Life Disposal</a></li> </ul> </li> </ul> @@ -259,17 +259,17 @@ for the JavaScript code in this tag. </ul> </div> </div> -<div id="outline-container-orgb231d05" class="outline-2"> -<h2 id="orgb231d05"><span class="section-number-2">1</span> Location Logging</h2> +<div id="outline-container-org9fe5754" class="outline-2"> +<h2 id="org9fe5754"><span class="section-number-2">1</span> Location Logging</h2> <div class="outline-text-2" id="text-1"> <p> This document was created by Steven Baltakatei Sandoval on -<span class="timestamp-wrapper"><span class="timestamp"><2020-06-29 Mon 12:14> </span></span> under a <a href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons BY-SA 4.0 license</a>. It -was updated by Steven Baltakatei Sandoval on <span class="timestamp-wrapper"><span class="timestamp"><2020-06-29 Mon 22:06></span></span>. +<code>2020-06-29T12:14Z</code> under a <a href="https://creativecommons.org/licenses/by-sa/4.0/">Creative Commons BY-SA 4.0 license</a>. It +was updated by Steven Baltakatei Sandoval on <code>2020-06-30T17:13Z</code> </p> </div> -<div id="outline-container-orga7b5d26" class="outline-3"> -<h3 id="orga7b5d26"><span class="section-number-3">1.1</span> Narrative</h3> +<div id="outline-container-org6b1a17d" class="outline-3"> +<h3 id="org6b1a17d"><span class="section-number-3">1.1</span> Narrative</h3> <div class="outline-text-3" id="text-1-1"> <p> Ninfacyzga-01 records (logs) its position in time and space using a @@ -282,23 +282,23 @@ before being processed and written to disk. </p> </div> </div> -<div id="outline-container-orgc6050dc" class="outline-3"> -<h3 id="orgc6050dc"><span class="section-number-3">1.2</span> Description</h3> +<div id="outline-container-org57c152a" class="outline-3"> +<h3 id="org57c152a"><span class="section-number-3">1.2</span> Description</h3> <div class="outline-text-3" id="text-1-2"> </div> -<div id="outline-container-org832c363" class="outline-4"> -<h4 id="org832c363"><span class="section-number-4">1.2.1</span> Hardware</h4> +<div id="outline-container-orge971d48" class="outline-4"> +<h4 id="orge971d48"><span class="section-number-4">1.2.1</span> Hardware</h4> <div class="outline-text-4" id="text-1-2-1"> </div> <ol class="org-ol"> -<li><a id="orgb0e8ddc"></a>Raspberry Pi Zero W<br /> +<li><a id="org21a0c6c"></a>Raspberry Pi Zero W<br /> <div class="outline-text-5" id="text-1-2-1-1"> <p> See the <a href="https://www.raspberrypi.org/pi-zero-w/">OEM</a> webpage for this product. </p> </div> </li> -<li><a id="org7b37dcc"></a>PiZ UpTime 2.0<br /> +<li><a id="org002698e"></a>PiZ UpTime 2.0<br /> <div class="outline-text-5" id="text-1-2-1-2"> <p> See the <a href="https://alchemy-power.com/piz-uptime-2-0/">OEM</a> webpage for this product. @@ -307,8 +307,8 @@ See the <a href="https://alchemy-power.com/piz-uptime-2-0/">OEM</a> webpage for </li> </ol> </div> -<div id="outline-container-orgbe37034" class="outline-4"> -<h4 id="orgbe37034"><span class="section-number-4">1.2.2</span> Software</h4> +<div id="outline-container-orgd6ea21a" class="outline-4"> +<h4 id="orgd6ea21a"><span class="section-number-4">1.2.2</span> Software</h4> <div class="outline-text-4" id="text-1-2-2"> <p> <code>bkgpslog</code> : The bash script that performs the location data @@ -349,7 +349,7 @@ should be copied to <code>$HOME/.local/bin</code>. </div> <ol class="org-ol"> -<li><a id="org0c488b2"></a>Narrative<br /> +<li><a id="org3d64ae8"></a>Narrative<br /> <div class="outline-text-5" id="text-1-2-2-1"> <p> <code>bkgpslog</code> populates a 60-second buffer with NMEA data from <code>gpsd</code> via @@ -362,28 +362,28 @@ encrypted with <code>age</code>, and then written to disk. </ol> </div> -<div id="outline-container-org578c835" class="outline-4"> -<h4 id="org578c835"><span class="section-number-4">1.2.3</span> Output</h4> +<div id="outline-container-org2c5d288" class="outline-4"> +<h4 id="org2c5d288"><span class="section-number-4">1.2.3</span> Output</h4> <div class="outline-text-4" id="text-1-2-3"> </div> <ol class="org-ol"> -<li><a id="org72b99a5"></a>File Formats<br /> +<li><a id="orgaf12e62"></a>File Formats<br /> <ol class="org-ol"> -<li><a id="orgdb7241e"></a>NMEA<br /> +<li><a id="org8576f09"></a>NMEA<br /> <div class="outline-text-6" id="text-1-2-3-1-1"> <p> See the <a href="https://en.wikipedia.org/wiki/NMEA_0183">Wikipedia page</a> for this. </p> </div> </li> -<li><a id="orgeea00c8"></a>GPX<br /> +<li><a id="orge0c91b6"></a>GPX<br /> <div class="outline-text-6" id="text-1-2-3-1-2"> <p> See the <a href="https://en.wikipedia.org/wiki/GPS_Exchange_Format">Wikipedia page</a> for this. <a href="http://wiki.gis.com/wiki/index.php/WGS84">WGS84</a> is the datum used. </p> </div> </li> -<li><a id="orgc8b05e7"></a>KML<br /> +<li><a id="org25abef8"></a>KML<br /> <div class="outline-text-6" id="text-1-2-3-1-3"> <p> See the <a href="https://en.wikipedia.org/wiki/Keyhole_Markup_Language">Wikipedia page</a> for this. <a href="http://wiki.gis.com/wiki/index.php/WGS84">WGS84</a> is the datum used. @@ -392,7 +392,7 @@ See the <a href="https://en.wikipedia.org/wiki/Keyhole_Markup_Language">Wikipedi </li> </ol> </li> -<li><a id="org5c2a1ad"></a>Encryption Method<br /> +<li><a id="org67f375b"></a>Encryption Method<br /> <div class="outline-text-5" id="text-1-2-3-2"> <p> Files produced by the bkgpslog script are encrypted against a set of @@ -421,7 +421,7 @@ Help information for <code>age</code> is available by running <code>$ age --help </p> </div> <ol class="org-ol"> -<li><a id="org460d569"></a>Encryption Commands<br /> +<li><a id="org4ff51de"></a>Encryption Commands<br /> <div class="outline-text-6" id="text-1-2-3-2-1"> <p> Files may be encrypted to several recipients using a command similar to: @@ -442,7 +442,7 @@ bech32-formatted public key strings. </li> -<li><a id="org1a5268c"></a>Decryption Commands<br /> +<li><a id="org4a3cc4d"></a>Decryption Commands<br /> <div class="outline-text-6" id="text-1-2-3-2-2"> <p> Files may be decrypted using a command similar to: @@ -462,12 +462,12 @@ The version of <code>age</code> used to perform the encryption </ol> </div> </div> -<div id="outline-container-org7bb3aad" class="outline-3"> -<h3 id="org7bb3aad"><span class="section-number-3">1.3</span> Operating Procedures</h3> +<div id="outline-container-org2c59433" class="outline-3"> +<h3 id="org2c59433"><span class="section-number-3">1.3</span> Operating Procedures</h3> <div class="outline-text-3" id="text-1-3"> </div> -<div id="outline-container-orge393fe1" class="outline-4"> -<h4 id="orge393fe1"><span class="section-number-4">1.3.1</span> Initial Startup</h4> +<div id="outline-container-org6fcdbad" class="outline-4"> +<h4 id="org6fcdbad"><span class="section-number-4">1.3.1</span> Initial Startup</h4> <div class="outline-text-4" id="text-1-3-1"> <p> See OEM (Ozzmaker) <a href="https://ozzmaker.com/berrygps-berrygps-imu-quick-start-guide/">quickstart guide for the BerryGPS-IMU</a>. @@ -475,7 +475,7 @@ See OEM (Ozzmaker) <a href="https://ozzmaker.com/berrygps-berrygps-imu-quick-sta </div> <ol class="org-ol"> -<li><a id="org5d6581b"></a>Physical Setup<br /> +<li><a id="org407a2c4"></a>Physical Setup<br /> <div class="outline-text-5" id="text-1-3-1-1"> <p> BerryGPS-IMU must be electrically connected to the correct pins on the @@ -490,9 +490,9 @@ possible. </div> </li> -<li><a id="orgdf04559"></a>Software Setup<br /> +<li><a id="org5d08a29"></a>Software Setup<br /> <ol class="org-ol"> -<li><a id="org4804e32"></a>Install Executables<br /> +<li><a id="org444d2f8"></a>Install Executables<br /> <div class="outline-text-6" id="text-1-3-1-2-1"> <p> Install Raspbian 10 Buster onto an SD card image. See the Raspberry Pi @@ -523,9 +523,46 @@ Linux) in <code>$HOME/.local/bin</code>. </div> </li> -<li><a id="orgcf659dd"></a>Automatic Start Configuration<br /> +<li><a id="org629d57e"></a>Disable Swap File<br /> <div class="outline-text-6" id="text-1-3-1-2-2"> <p> +Since standard Raspbian 10 install involves copying unencrypted file +system image to SD card which is mounted by the Raspberry Pi, system +memory may be written to disk in the form of a Swap file as described +<a href="https://ideaheap.com/2013/07/stopping-sd-card-corruption-on-a-raspberry-pi/">here</a>. In order to reduce the chance that location log data is ever +written to disk, swap file functionality must be disabled. +</p> + +<p> +To view the status of the swap file in Raspbian 10, run <code>free -m</code>: +</p> + +<pre class="example"> +pi@ninfacyzga-01:~$ free -m + total used free shared buff/cache available +Mem: 432 86 36 21 309 268 +Swap: 99 0 99 +</pre> + +<p> +The swap file may be disabled by: +</p> + +<pre class="example"> +pi@ninfacyzga-01:~$ sudo dphys-swapfile swapoff +pi@ninfacyzga-01:~$ sudo dphys-swapfile uninstall +pi@ninfacyzga-01:~$ sudo update-rc.d dphys-swapfile remove +pi@ninfacyzga-01:~$ free -m + total used free shared buff/cache available +Mem: 432 96 33 22 302 258 +Swap: 0 0 0 +</pre> +</div> +</li> + +<li><a id="orgd9b9b30"></a>Automatic Start Configuration<br /> +<div class="outline-text-6" id="text-1-3-1-2-3"> +<p> Edit the user cron job list with <code>$ crontab -e</code> to add the following lines: </p> @@ -563,7 +600,7 @@ may resemble: <p> The <code>age1z2...qkv6p</code> is an <code>age</code> public key string. Please see the -<a href="#orgc8fd75d">Key Generation</a> section for an explanation. +<a href="#org82f0a69">Key Generation</a> section for an explanation. </p> <p> @@ -581,8 +618,8 @@ The options are: </div> </li> -<li><a id="org5275559"></a>Log Transfer Configuration<br /> -<div class="outline-text-6" id="text-1-3-1-2-3"> +<li><a id="orgce1df03"></a>Log Transfer Configuration<br /> +<div class="outline-text-6" id="text-1-3-1-2-4"> <p> Log files may be shared to other machines via <code>syncthing</code>. See <a href="https://docs.syncthing.net/">this</a> manual for how to set up a shared folder and add Ninfacyzga-01 as a @@ -598,8 +635,8 @@ of this document. </div> </li> -<li><a id="orgc8fd75d"></a>Key Generation<br /> -<div class="outline-text-6" id="text-1-3-1-2-4"> +<li><a id="org82f0a69"></a>Key Generation<br /> +<div class="outline-text-6" id="text-1-3-1-2-5"> <p> An <code>age</code> encryption key may be generated like so: </p> @@ -642,8 +679,8 @@ be readable, writeable, or executable to anyone except the owner </ol> </div> -<div id="outline-container-orgcaf0980" class="outline-4"> -<h4 id="orgcaf0980"><span class="section-number-4">1.3.2</span> Normal Startup</h4> +<div id="outline-container-org15d1661" class="outline-4"> +<h4 id="org15d1661"><span class="section-number-4">1.3.2</span> Normal Startup</h4> <div class="outline-text-4" id="text-1-3-2"> <p> Turn on Ninfacyzga-01 by supplying 5VDC power to the Raspberry Pi. No @@ -651,8 +688,8 @@ further interaction should be required. </p> </div> </div> -<div id="outline-container-org73571fc" class="outline-4"> -<h4 id="org73571fc"><span class="section-number-4">1.3.3</span> Normal Operation</h4> +<div id="outline-container-org989e70e" class="outline-4"> +<h4 id="org989e70e"><span class="section-number-4">1.3.3</span> Normal Operation</h4> <div class="outline-text-4" id="text-1-3-3"> <p> No interaction beyond continually supplying approximately 100mA of @@ -661,14 +698,14 @@ is required. </p> </div> <ol class="org-ol"> -<li><a id="org55738e2"></a>Log Transfer<br /> +<li><a id="org87c8f03"></a>Log Transfer<br /> <div class="outline-text-5" id="text-1-3-3-1"> <p> Log files may be transferred by use of <code>syncthing</code> shared folders. </p> </div> </li> -<li><a id="org16c5bdc"></a>Automatic Updates<br /> +<li><a id="org203d027"></a>Automatic Updates<br /> <div class="outline-text-5" id="text-1-3-3-2"> <p> The <code>automatic-upgrades</code> package, if installed, should automatically @@ -678,8 +715,8 @@ install security patches to packages installed via <code>apt</code>. </li> </ol> </div> -<div id="outline-container-orga82b5fb" class="outline-4"> -<h4 id="orga82b5fb"><span class="section-number-4">1.3.4</span> Normal Shutdown</h4> +<div id="outline-container-orged87647" class="outline-4"> +<h4 id="orged87647"><span class="section-number-4">1.3.4</span> Normal Shutdown</h4> <div class="outline-text-4" id="text-1-3-4"> <p> The system may be shutdown via SSH by running: @@ -692,8 +729,8 @@ $ sudo shutdown -r 0 </div> </div> -<div id="outline-container-org5305842" class="outline-4"> -<h4 id="org5305842"><span class="section-number-4">1.3.5</span> Unscheduled Shutdown</h4> +<div id="outline-container-org5d4c9cd" class="outline-4"> +<h4 id="org5d4c9cd"><span class="section-number-4">1.3.5</span> Unscheduled Shutdown</h4> <div class="outline-text-4" id="text-1-3-5"> <p> Ninfacyzga-01 as described and setup should tolerate unscheduled power @@ -702,8 +739,8 @@ seconds worth of location data may be lost. </p> </div> </div> -<div id="outline-container-org4a5c4af" class="outline-4"> -<h4 id="org4a5c4af"><span class="section-number-4">1.3.6</span> End of Life Disposal</h4> +<div id="outline-container-org00f1b85" class="outline-4"> +<h4 id="org00f1b85"><span class="section-number-4">1.3.6</span> End of Life Disposal</h4> <div class="outline-text-4" id="text-1-3-6"> <p> LiPo batteries used by the PiZ Uptime 2.0 module should be disposed of @@ -728,9 +765,8 @@ lead-free solder. </div> </div> <div id="postamble" class="status"> -<p class="date">Date: 2020-06-29T22:16Z</p> <p class="author">Author: Steven Baltakatei Sandoval</p> -<p class="date">Created: 2020-06-29 Mon 22:27</p> +<p class="date">Created: 2020-06-30 Tue 17:14</p> <p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p> </div> </body>