# HG changeset patch # User stephen # Date 1274969008 -3600 # Node ID 1d832a05eb87aa13f9f98caeadaf95d4e8f5779b # Parent 47d07dc86cd069611165846d7356150532f1150e tmp diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-off-small.jpg Binary file images/S-off-small.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-off.jpg Binary file images/S-off.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-on-small.jpg Binary file images/S-on-small.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-on.jpg Binary file images/S-on.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-screen-small.jpg Binary file images/S-screen-small.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-screen.jpg Binary file images/S-screen.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-turingon-small.jpg Binary file images/S-turingon-small.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/S-turingon.jpg Binary file images/S-turingon.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/n4c-logo-tiny.png Binary file images/n4c-logo-tiny.png has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/n4c-logo.png Binary file images/n4c-logo.png has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/padjelanta-map-small.jpg Binary file images/padjelanta-map-small.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/padjelanta-map.jpg Binary file images/padjelanta-map.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/resizeem --- /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 diff -r 47d07dc86cd0 -r 1d832a05eb87 images/smaller-node-thumb.jpg Binary file images/smaller-node-thumb.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 images/smaller-node.jpg Binary file images/smaller-node.jpg has changed diff -r 47d07dc86cd0 -r 1d832a05eb87 index.html --- 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 @@ -

N4C Summer +

N4C Summer 2010 Trial

DRAFT 2010-05-26 SUBJECT TO CHANGEcontact: stephen.farrell@cs.tcd.ie @@ -74,7 +74,7 @@ for trials like this one and for a range of other applications.

Locations and Dates

@@ -97,7 +97,7 @@ -

http://www.padjelanta.com/en/karta/index.asp

@@ -247,7 +247,7 @@

In person: Some of us will be in the area during the - trial. Look for jackets or posters with the N4C Logo.

+ trial. Look for jackets or posters with the N4C Logo.

Via email: help@village.n4c.eu (this can be read at each router and from the Internet...when it gets there!)

Village DTN Router - User Interface

Village DTN Router - Hardware User Interface

stephen.farrell@cs.tcd.ie, 2010-05-27

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.

The first thing to note is that users should only use the device as shown +here - ONLY TRAINED STAFF SHOULD ATTEMPT OTHER ACTIONS, 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!

Figure 1 shows a village DTN router deployed in Staloluokta in 2009.

Turning On and Off

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. PLEASE BE PATIENT - DO NOT CONSTANTLY +SWITCH THE DEVICE ON AND OFF! 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.

Figure 2 shows the ON/OFF switch in the "ON" position.

Figure 3 shows the ON/OFF switch in the "OFF" position.

Figure 4 shows a user switch the device to the "ON" position.

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.

Power Management

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:

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.
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.
If power levels fall further, the device will