VAWT online . Pentru afisarea live a parametrilor furnizati de senzori prin intermediul Arduino si inregistrati intr-o baza de date SQL se foloseste formatul de date „JSON” si Google Gauge.
VAWT online codul necesar :
1.” data.php” pentru pentru interogarea bazei de date si trimitere a datelor in format „JSON”
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<?php // Conectare la baza de date mysql_connect("Localhost", "user", "parola") or die(mysql_error()); mysql_select_db("nume baza de date") or die(mysql_error()); $result = mysql_query("SELECT * FROM tempLog ORDER BY timeStamp DESC LIMIT 1") or die (mysql_error()); $row = mysql_fetch_assoc($result); echo json_encode($row); exit; ?> |
2. „index.html” pentru afisare folosind Google Gauge:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <title> standard title page </title> <!-- google api don’t change --> <script type="text/javascript" src="http://www.google.com/jsapi"></script> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> <script type="text/javascript"> google.load('visualization', '1', {packages: ['gauge']}); google.setOnLoadCallback(drawVisualization); $(document).ready(function() { chart = new google.visualization.Gauge(document.getElementById('visualization')); chart2 = new google.visualization.Gauge(document.getElementById('visualization2')); chart3 = new google.visualization.Gauge(document.getElementById('visualization3')); chart4 = new google.visualization.Gauge(document.getElementById('visualization4')); chart5 = new google.visualization.Gauge(document.getElementById('visualization5')); // first graph (temperatura proc) data = google.visualization.arrayToDataTable([ ['Label', 'Value'], ['C', 0], ]); options = { width: 250, height: 250, max:100, min:0, animation:{duration: 500}, redFrom:70, redTo:100, yellowFrom:50, yellowTo:70, greenFrom:0, greenTo:50, minorTicks: 10, majorTicks: ["-20",,20,,40,,60,,80,,100] }; // second graph (CURENT) data2 = google.visualization.arrayToDataTable([ ['Label', 'Value'], ['A', 0], ]); options2 = { width: 250, height: 250, max:20, min:0, animation:{duration: 500}, redFrom:15, redTo:20, yellowFrom:10, yellowTo:15, greenFrom:0, greenTo:10, minorTicks: 10, majorTicks: ["0",,5,,,10,,,15,,20] }; // third graph (tensiune) data3 = google.visualization.arrayToDataTable([ ['Label', 'Value'], ['V', 0], ]); options3 = { width: 250, height: 250, max:16, min:0, animation:{duration: 500}, redFrom:0, redTo:10, yellowFrom:10, yellowTo:14, greenFrom:14, greenTo:16, minorTicks: 10, majorTicks: ["0",,4,,,8,,,12,,16] }; // third graph (putere) data4 = google.visualization.arrayToDataTable([ ['Label', 'Value'], ['W', 0], ]); options4 = { width: 250, height: 250, max:200, min:0, animation:{duration: 500}, redFrom:150, redTo:200, yellowFrom:100, yellowTo:150, greenFrom:0, greenTo:100, minorTicks: 10, majorTicks: ["0",,50,,,100,,,150,,200] }; // first graph (UMIDITATE) data5 = google.visualization.arrayToDataTable([ ['Label', 'Value'], ['%', 0], ]); options5 = { width: 250, height: 250, max:100, min:0, animation:{duration: 500}, redFrom:70, redTo:100, yellowFrom:50, yellowTo:70, greenFrom:0, greenTo:50, minorTicks: 10, majorTicks: ["0",,20,,40,,60,,80,,100] }; }); // function to update data automatically function drawVisualization() { chart.draw(data,options); chart2.draw(data2,options2); chart3.draw(data3,options3); chart4.draw(data4,options4); chart5.draw(data5,options5); } function test(ajaxdata) { var curent=ajaxdata.curent; var temperature=ajaxdata.temperature; var tensiune=ajaxdata.tensiune; var putere=ajaxdata.putere; var humidity=ajaxdata.humidity; console.log(ajaxdata); data.setValue(0,1,temperature); data2.setValue(0,1,curent); data3.setValue(0,1,tensiune); data4.setValue(0,1,putere); data5.setValue(0,1,humidity); chart.draw(data,options); chart2.draw(data2,options2); chart3.draw(data3,options3); chart4.draw(data4,options4); chart5.draw(data5,options5); } function status_update() { var jqxhr = $.getJSON('data.php?' + 'random=' + Math.random(), function() { }) .fail(function() { }) .done(function(ajaxdata) { test(ajaxdata); }); } var refreshId = setInterval('status_update()', 1000); $.ajaxSetup({ cache: false }); </script> </head> <!-- html standard for view a graph --> <body style="font-family: Arial;border: 0 none;"> <div id="visualization2" style="float: left; width: 250px; height: 250px;"></div> <div id="visualization3" style="float: left; width: 250px; height: 250px;"></div> <div id="visualization4" style="float: left; width: 250px; height: 250px;"></div> <div id="visualization" style="float: left; width: 250px; height: 250px;"></div> <div id="visualization5" style="float: left; width: 250px; height: 250px;"></div> </body> </html> |