<!DOCTYPE html>
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<html>
<head>
<title>Node Signal</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<style>
body {
background-image: url("static/chalk.jpg");
}
h2 {
font: bold 24px arial, sans-serif;
}
h3 {
font: bold 18px arial, sans-serif;
}
h4 {
font: bold 16px arial, sans-serif;
}
.mainContainer {
width: 750px;
text-align: center;
margin: auto;
}
.datetime {
font: bold 22px arial, sans-serif;
padding: 0px;
}
.rowContainer {
display: table;
width: 100%;
}
.currentDataCell {
width: 50%;
padding: 10px;
font: bold 20px arial, sans-serif;
text-align: center;
display: table-cell;
vertical-align: middle;
/*border: 1px solid black;*/
}
.dataItems {
padding: 2px;
text-align: left;
line-height: 130%;
display: inline-block;
vertical-align: middle;
}
.chartContainer {
padding: 2px;
}
img.chart {
width:100%;
}
.notes {
font: 17px arial, sans-serif;
text-align: left;
padding: 10px;
}
span.chartNav {
margin: auto;
}
ul.chartNav {
list-style-type: none;
margin: 10px;
padding: 0;
overflow: hidden;
background-color: #bbb;
text-align: center;
}
li.chartNav {
display: inline-block;
font: bold 18px arial, sans-serif;
color: black;
}
text.chartNav:hover {
background-color: #333;
cursor: pointer;
color: white;
}
text.chartNav {
display: inline-block;
padding: 8px 12px;
}
</style>
</head>
<body onload="main()">
<div class="mainContainer">
<h2><a href="https://github.com/fractalxaos/arednstat"
style="text-decoration:none" target="_new">
KA7JLO Aredn Node Signal</a></h2>
<h3>Last Updated</h3>
<div class="datetime">
<text id="date"></text>
<text id="time"></text>
</div>
<div class="rowContainer">
<div class="currentDataCell">
<div class="dataItems" style="text-align: right;">
Status:<br>
Page updates every:
</div>
<div class="dataItems">
<text id="status"></text><br>
<text id="period"></text> minutes
</div>
</div>
</div>
<span class="chartNav">
<ul class="chartNav">
<li class="chartNav">Select charts:</li>
<li class="chartNav"><text class="chartNav" onclick="setChartPeriod(1)">
24 hours</text></li>
<li class="chartNav"><text class="chartNav" onclick="setChartPeriod(2)">
4 weeks</text></li>
<li class="chartNav"><text class="chartNav" onclick="setChartPeriod(3)">
12 months</text></li>
</ul>
</span>
<br>
<div class="chartContainer">
<img class="chart" id="snrChart">
</div>
<div class="chartContainer">
<img class="chart" id="signalChart">
</div>
<div class="chartContainer">
<img class="chart" id="noiseChart">
</div>
<div class="chartContainer">
<img class="chart" id="rxrateChart">
</div>
<div class="chartContainer">
<img class="chart" id="txrateChart">
</div>
<div class="notes">
<b>NOTES:</b>
<ul>
<li>Aredn Node Signal software available at
<a href="https://github.com/fractalxaos/radmon" target="_new">
<i>Github.com</i></a>.</li>
<li>Project sponsored by
<a href="https://willamettevalleymesh.net" TARGET="_NEW">
<i>Willamette Valley Mesh Network</i></a>, Salem, Oregon.</li>
<li>For more information about the amateur radio emergency
data network (AREDN) see official web site at
<a href="http://www.arednmesh.org" target="_blank">
www.arednmesh.org</a>.</li>
</ul>
</div>
</div>
<br>
<script>
/* Global constants */
var nodeDataUrl = "dynamic/nodeOnline.js";
/* Global DOM objects */
// Chart elements
var snrChart = document.getElementById("snrChart");
var signalChart = document.getElementById("signalChart");
var noiseChart = document.getElementById("noiseChart");
var rxrateChart = document.getElementById("rxrateChart");
var txrateChart = document.getElementById("txrateChart");
// Text elements
var dateElmt = document.getElementById("date");
var timeElmt = document.getElementById("time");
var statusElmt = document.getElementById("status");
var periodElmt = document.getElementById("period");
/* Global objects */
var httpRequest = new XMLHttpRequest();
/* Global variables */
var graphPeriod;
var graphRefreshRate = 10; // chart refresh rate in minutes
function main() {
/* Register call back function to process http requests */
httpRequest.onreadystatechange = function() {
if (httpRequest.readyState == 4 && httpRequest.status == 200) {
var dataArray = JSON.parse(httpRequest.responseText);
displayData(dataArray[0]);
} else if (httpRequest.readyState == 4 && httpRequest.status == 404) {
displayOfflineStatus();
}
};
httpRequest.ontimeout = function(e) {
displayOfflineStatus();
};
getNodeData();
graphPeriod = 1;
getNodeGraphs();
}
function getNodeData() {
httpRequest.open("GET", nodeDataUrl, true);
httpRequest.timeout = 3000;
httpRequest.send();
}
function setChartPeriod(n) {
graphPeriod = n;
getNodeGraphs();
}
function getNodeGraphs() {
var d = new Date;
var pfx;
switch(graphPeriod) {
case 1:
pfx = "24hr_";
break;
case 2:
pfx = "4wk_";
break;
case 3:
pfx = "12m_";
break;
}
signalChart.src = "dynamic/" + pfx + "signal.png?ver=" + d.getTime();
noiseChart.src = "dynamic/" + pfx + "noise.png?ver=" + d.getTime();
snrChart.src = "dynamic/" + pfx + "snr.png?ver=" + d.getTime();
rxrateChart.src = "dynamic/" + pfx + "rx_rate.png?ver=" + d.getTime();
txrateChart.src = "dynamic/" + pfx + "tx_rate.png?ver=" + d.getTime();
}
function displayData(dataItem) {
var timeStamp, date, time, hourminute;
var localDateObj,localTimeZone;
timeStamp = dataItem.date;
date = timeStamp.split(" ")[0];
time = timeStamp.split(" ")[1];
hourminute = time.split(":")[0] + ":" + time.split(":")[1];
localDate = new Date();
localTimeZone = localDate.getTimezoneOffset() / 60;
dateElmt.innerHTML = date;
timeElmt.innerHTML = hourminute +
" <small>(GMT+" + localTimeZone + ")</small>";
statusElmt.innerHTML = "Online";
statusElmt.style.color = "green";
graphRefreshRate = dataItem.period;
periodElmt.innerHTML = graphRefreshRate;
setInterval(getNodeData, 60000 * graphRefreshRate);
setInterval(getNodeGraphs, 60000 * graphRefreshRate);
}
function displayOfflineStatus() {
var d = new Date();
localTimeZone = d.getTimezoneOffset() / 60;
dateElmt.innerHTML = (d.getMonth() + 1) + "/" + d.getDate() + "/" +
d.getFullYear();
timeElmt.innerHTML = d.getHours() + ":" + d.getMinutes() +
" <small>(GMT+" + localTimeZone + ")</small>";
periodElmt.innerHTML = "?";
statusElmt.innerHTML = "offline";
statusElmt.style.color = "red";
}
</script>
</body>
</html>