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--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/images/resizeem Thu May 27 15:03:28 2010 +0100
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -x
+
+for file in S-*.jpg
+do
+ fb=`basename $file .jpg`
+ fbb=`basename $fb -small`
+ if [ "$fb" == "$fbb" ]
+ then
+ if [ ! -f "$fb-small.jpg" ]
+ then
+ # there's no -small variant
+ convert -geometry 300x400 $fb.jpg $fb-small.jpg
+ fi
+ fi
+done
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--- a/index.html Thu May 27 13:14:17 2010 +0100
+++ b/index.html Thu May 27 15:03:28 2010 +0100
@@ -9,7 +9,7 @@
</head>
<body>
-<h1><img alt="Logo" src="n4c-logo.png" width="243" height="52" /> N4C Summer
+<h1><img alt="Logo" src="images/n4c-logo.png" width="243" height="52" /> N4C Summer
2010 Trial</h1>
<strong><span style="font-size: 24pt">DRAFT 2010-05-26 SUBJECT TO CHANGE</span></strong><small>contact: stephen.farrell@cs.tcd.ie</small>
@@ -74,7 +74,7 @@
for trials like this one and for a range of other applications.</p>
</td>
- <td><a href="smaller-node.jpg"><img alt="Village DTN router" src="smaller-node-thumb.jpg"/></a></td>
+ <td><a href="images/smaller-node.jpg"><img alt="Village DTN router" src="images/smaller-node-thumb.jpg"/></a></td>
</tr>
<tr>
<td><h2><a name="Locations" id="Locations">Locations and Dates</a></h2>
@@ -97,7 +97,7 @@
</td>
<td>
- <a href="padjelanta-map.jpg"><img src="padjelanta-map-small.jpg" alt="Padlelanta map"/></a>
+ <a href="images/padjelanta-map.jpg"><img src="images/padjelanta-map-small.jpg" alt="Padlelanta map"/></a>
<small><a href="http://www.padjelanta.com/en/karta/index.asp">http://www.padjelanta.com/en/karta/index.asp</small></p>
</td>
</tr>
@@ -247,7 +247,7 @@
<ul>
<li>In person: Some of us will be in the area during the
- trial. Look for jackets or posters with the N4C Logo. <img src="n4c-logo-tiny.png" alt="Logo"/> </li>
+ trial. Look for jackets or posters with the N4C Logo. <img src="images/n4c-logo-tiny.png" alt="Logo"/> </li>
<li>Via email: <a href="mailto:help@village.n4c.eu">help@village.n4c.eu</a>
(this can be read at each router and from the Internet...when it gets
there!)</li>
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/router-screen.html Thu May 27 15:03:28 2010 +0100
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+ <meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
+ <title>Village DTN Router - User Interface</title>
+ <meta name="generator" content="Amaya, see http://www.w3.org/Amaya/" />
+</head>
+
+<body>
+<h1>Village DTN Router - Hardware User Interface</h1>
+
+<p>stephen.farrell@cs.tcd.ie, 2010-05-27</p>
+
+<p>This document describes the external user interface of the village DTN
+router box. That is: how to interpret the contents displayed on the screen and
+how to turn the device on and off safely.</p>
+
+<p>The first thing to note is that users should only use the device as shown
+here - <strong>ONLY TRAINED STAFF SHOULD ATTEMPT OTHER ACTIONS</strong>, so
+please do not disturb cables, antennae or other external parts of the device.
+Any such tampering is likely to result in an non-functional village DTN router
+so please don't do it!</p>
+
+<p>Figure 1 shows a village DTN router deployed in Staloluokta in 2009.</p>
+
+<h2>Turning On and Off</h2>
+
+<p>The large switch at the side of the device is used to turn it on and off.
+The device requries approximately two minutes to fully boot and bring up all of
+the WiFi, mail and web services. <strong>PLEASE BE PATIENT - DO NOT CONSTANTLY
+SWITCH THE DEVICE ON AND OFF!</strong> Doing so could damage the device, in
+particular, the filesystems - such an error would be the equivalent of a
+hard-disk failure in a laptop.</p>
+
+<p>Figure 2 shows the ON/OFF switch in the "ON" position. </p>
+
+<p>Figure 3 shows the ON/OFF switch in the "OFF" position.</p>
+
+<p>Figure 4 shows a user switch the device to the "ON" position.</p>
+
+<p>That's all very simple so far, but its gets a little more complicated when
+we need to understand how the device manages its use of power.</p>
+
+<h2>Power Management</h2>
+
+<p>As a solar-powered device, the village DTN router must manage its power so
+as to conserve battery in case there is not sufficient sunlight to charge the
+batteries. We have implemented a power management module for the village DTN
+router with the following features:</p>
+<ul>
+ <li>When sufficient power is available and the device is operating normally,
+ it is in the "UP" state. In the "UP" state, all WiFi, mail and web services
+ are operating.</li>
+ <li>When power levels are lower, the device may switch to a standby mode of
+ operation for a short period (30 minutes) to allow some time for the
+ batteries to recharge, this is the "STANDBY-SHORT" state. In this state the
+ device uses much less power, but no services are available as the processor
+ in the device is asleep, just like a laptop in standby mode. After 30
+ minutes, the device will power up, and if power levels are sufficient will
+ change to the "UP" state.</li>
+ <li>If power levels fall further, the device will </li>
+</ul>
+
+<p></p>
+
+<p></p>
+</body>
+</html>
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