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code:ground_data

This is a local php based display tool for mini rogallo data. Positions, altitudes and headings are relayed to natrium42's tracker.

Demo with static logfile 

<?php
 session_register("time");
 session_register("packets");									//used for the time since last packet
include("php_includes/pChart/pChart.class");
include("php_includes/pChart/pData.class");
if($_POST["reset"]=='true')
{
	$HTTP_SESSION_VARS ["time"]=0;
	$HTTP_SESSION_VARS ["packets"]=0;
}
/*
function hitUrl($url) {
       $url = parse_url($url);
       $port = isset($url['port']) ? $url['port'] : 80;
       $socket = fsockopen($url['host'], $port);
       fputs($socket, "GET " . $url['path'] . " HTTP/1.0\n");
       fputs($socket, "User-Agent: shmertmethod\n");
       fputs($socket, "\n");
       fclose($socket);
}*/
 $kml=array('<?xml version="1.0" encoding="UTF-8" ?><kml xmlns="http://earth.google.com/kml/2.1"><Document><Style id="track"><LineStyle><color>fff010c0</color></LineStyle><PolyStyle><color>3fc00880</color></PolyStyle></Style><Style id="place"><IconStyle><scale>1</scale><Icon><href>http://weather.uwyo.edu/icons/purple.gif</href></Icon></IconStyle></Style><Placemark><name>Launch</name><styleUrl>#place</styleUrl><description>Launch location was... at...</description><Point><altitudeMode>absolute</altitudeMode><coordinates>','</coordinates></Point></Placemark><Placemark><name>FlightPath</name><styleUrl>#track</styleUrl><LineString><extrude>1</extrude><altitudeMode>absolute</altitudeMode><coordinates>','</coordinates></LineString></Placemark><Placemark><name>PositionNow</name><styleUrl>#place</styleUrl><description>Current Position is... at...</description><Point><altitudeMode>absolute</altitudeMode><coordinates>','</coordinates></Point></Placemark></Document></kml>');
 $kml_file="/home/laurence/Documents/earth_viewer/every5.kml";
 $update_time=5;										//refresh every x seconds
 echo "<html><head><title>Mini Rogallo</title><META HTTP-EQUIV='REFRESH' CONTENT='$update_time'><link rel='stylesheet' type='text/css' href='style.css'><script language='JavaScript'>function submit() { document.getElementById('hiddenresetform').submit() }</script></head><body>";
 $HTTP_SESSION_VARS ["time"]++;									//we ran again
 $DataSet_headings = new pData;
 $DataSet_positions = new pData;
 $DataSet_voltage = new pData;
 $DataSet_temperature = new pData;
 $date_string=substr(str_replace("-","",date("c")),0,8);
 $callsign="UKHAS";
 $logfile = "/home/laurence/.fldigi/fldigi".$date_string.".log";
 $fh = fopen($logfile, "r") or die("Cant open the logfile");
 $theData = fread($fh, filesize($logfile));
 fclose($fh);
 $offset=0;
 $telemlenght=80;
 $firstpos=strpos($theData,$callsign); 
 $gnd='';
 $status="ascending";
 $maxalt=0;
 $numberofpackets=0;
 $firstposition=1;
 while($firstpos)										//we have found another header
 {
 	$offset=$firstpos;
 	$firstpos=strpos($theData,$callsign,$offset+1);
 	$ourstring=substr($theData,$offset,$telemlenght);
	$substrings=split(",",$ourstring,13);
	$checksum=0;										//zero this ready for our count
	$stringpasses=FALSE;									//this will be set to true if all conditions met
	if($substrings[0]=="UKHAS>" or $substrings[0]=="UKHAS-")				//the short lenght packet
		$thelenght=8;
	elseif($substrings[0]=="UKHAS<")
	{											//the long packet
		$thelenght=12;
		if(count($substrings)>=6)
		{
			$up=floatval($substrings[5]);
			if($up<=200)
				$thelenght++;							//the ground control status increases packet lenght
		}
	}
	else
		$thelenght=200;									//nothing can run if we have a dodgy header
	if(count($substrings)>=$thelenght)							//are there enough variables
	{
		for($n=1;$n<($thelenght-1);$n++)		
		{
			for($m=0;$m<strlen($substrings[$n]);$m++)
			{
				$checksum+=ord(substr($substrings[$n],$m,1));
				$checksum=$checksum%256;
			}
			$checksum+=ord(",");
			$checksum=$checksum%256;
		}
		//$checksum+=ord(substr(strtoupper(dechex($checksum)),0,1));			//add on the first checksum hex character
		//$checksum%=256;
		$stringpasses=(strtoupper(dechex($checksum))==substr($substrings[$thelenght-1],0,2));//check the checksum
		//echo "check=".$checksum; echo " ".$substrings[$thelenght-1];echo $stringpasses;echo $thelenght;
	}
	if($stringpasses)									//process the packet
	{	
		$north=floatval($substrings[1]);
		$east=floatval($substrings[2]);
		$up=floatval($substrings[3]);
		$north_kml[]=$north*57.29577951;							//for google earth
		$east_kml[]=$east*57.29577951;
		$altitude_kml[]=$up;
		$sats=floatval($substrings[4]);
		if($firstposition==1)
		{
			$takeoffnorth=$north*6378;						//record the takeoff point
			$takeoffeast=$east*6378*cos($east);
			$firstposition=0;
		}
		$DataSet_positions->AddPoint($north*6378-$takeoffnorth,"Serie1");		//North in KM
		$DataSet_positions->AddPoint($east*6378*cos($east)-$takeoffeast,"Serie2");	//East in Km
		$DataSet_positions->AddPoint($up,"Serie3");					//Altitude
 		if($substrings[0]=="UKHAS<")	
 		{
			$status="descending";		
			$headings[]=floatval($substrings[5]);
			$targets[]=floatval($substrings[6]);
			$headingsf[]=floatval($substrings[7]);
			$rates[]=floatval($substrings[8]);
			if($up<200)
			{
				$DataSet_voltage->Addpoint(floatval($substrings[10]),"Serie1");
				$DataSet_temperature->AddPoint(floatval($substrings[11]),"Serie1");//Bat voltage, Internal temperature
				$gnd=$substrings[9];
			}
			else
			{
				$DataSet_voltage->AddPoint(floatval($substrings[9]),"Serie1");
				$DataSet_temperature->AddPoint(floatval($substrings[10]),"Serie1");
			}	
		}
		else
 		{
			$DataSet_voltage->Addpoint(floatval($substrings[5]),"Serie1");
			if($substrings[6]!=="0")
				$DataSet_temperature->AddPoint(floatval($substrings[6]),"Serie1");//Bat voltage, Internal temperature
			if($status=="descending")
				$status="touchdown!";
 		}
		if(floatval($up)>$maxalt)
  			$maxalt=floatval($up);
		$numberofpackets++;								//we have got a new packet
		if($numberofpackets>$HTTP_SESSION_VARS ["packets"] )
		{
			$HTTP_SESSION_VARS ["time"]=0;
			$HTTP_SESSION_VARS ["packets"]=$numberofpackets;  
			$request = 'http://spacenear.us/tracker/track';					//send to natrium42 tracker
    			$format = 'php';   // this can be xml, json, html, or php
    			$args .= 'vehicle='.$callsign;
    			$args .= '&time=0';
    			$args .= '&lat='.$north*57.29577951;
    			$args .= '&lon='.$east*57.29577951;
    			$args .= '&alt='.$up;
			if($substrings[0]=="UKHAS<")
    				$args .= '&heading='.$substrings[10];
			else
				$args .= '&heading=0';
    			$args .= '&speed=0';
			$args .= '&pass='.$pass;
 
    			// Get and config the curl session object
    			$session = curl_init($request.'.'.$format.'?'.$args);
    			curl_setopt($session, CURLOPT_HEADER, false);
    			curl_setopt($session, CURLOPT_RETURNTRANSFER, true);
 
    			//execute the request and close
			ob_start();
    			$response = curl_exec($session);
			ob_end_clean();    			
			curl_close($session);
			unset($response);
			$newdata=TRUE;
		}
		else
			$newdata=FALSE;	
	 }
 }
 for($n=count($headings)-1;$n>count($headings)-21;$n--)						//The last 20 seconds
 {
	$DataSet_headings->AddPoint($headings[$n]*57.295,"Serie1");
 
 	$DataSet_headings->AddPoint($headingsf[$n]*57.295,"Serie2");
	$DataSet_headings->AddPoint($rates[$n]*57.295,"Serie3");
	$DataSet_headings->AddPoint($targets[$n]*57.295,"Serie4");
 }
 $link="<a href='http://maps.google.com/?q=@";
 $link.=strval($north*57.29577951);
 $link.=",";
 $link.=strval($east*57.29577951);
 $link.="' target='_blank'>View in Google maps</a>";
 
 
 if($newdata){
 $DataSet_headings->AddAllSeries();
 
 $DataSet_headings->SetAbsciseLabelSerie();
 
 $DataSet_headings->SetSerieName("GPS","Serie1");
 
 $DataSet_headings->SetSerieName("Filtered","Serie2");
 $DataSet_headings->SetSerieName("Turn Rate","Serie3");
 $DataSet_headings->SetSerieName("Target","Serie4");
 
 // Initialise the graph   
 
 $Test = new pChart(700,230);
 
 $Test->setFontProperties("php_includes/Fonts/tahoma.ttf",8);   
 
 $Test->setGraphArea(70,30,680,200);
 $Test->drawGraphArea(213,217,221,FALSE); 
 $Test->drawGraphAreaGradient(30,30,30,-50);
 $Test->setFixedScale(-180,180,6,0,$numberofpackets,20); 
 
 $Test->drawScale($DataSet_headings->GetData(),$DataSet_headings->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2);   
 
 $Test->drawGrid(4,TRUE,230,230,230,20);  
 
 
 
 // Draw the 0 line   
 
 $Test->setFontProperties("php_includes/Fonts/tahoma.ttf",6);   
 
 $Test->drawTreshold(0,143,55,72,TRUE,TRUE);
 
 // Draw the line graph
 
 $Test->drawLineGraph($DataSet_headings->GetData(),$DataSet_headings->GetDataDescription());   
 
 $Test->clearShadow();
 
 // Finish the graph   
 
 $Test->setFontProperties("php_includes/Fonts/tahoma.ttf",8);   
 
 $Test->drawLegend(75,35,$DataSet_headings->GetDataDescription(),255,255,255);   
 
 $Test->setFontProperties("php_includes/Fonts/tahoma.ttf",10);   
 
 $Test->drawTitle(60,22,"Heading - last 20 seconds",50,50,50,585); 
 
 $Test->Render("Headings.png");
 unset($Test);
 
 $DataSet_headings->RemoveSerie("Serie1","Serie2","Serie3");
 
 //the position graph
 $DataSet_positions->AddSerie("Serie1","Serie2");  
 $DataSet_positions->SetSerieName("Position","Serie1");    
 $DataSet_positions->SetXAxisName("East (Km)");  
 $DataSet_positions->SetYAxisName("North (Km)");  
 
  // Initialise the graph  
  $Test2 = new pChart(300,300);  
  $Test2->drawGraphAreaGradient(0,0,0,-100,TARGET_BACKGROUND);  
 
  // Prepare the graph area  
  $Test2->setFontProperties("php_includes/Fonts/tahoma.ttf",8);  
  $Test2->setGraphArea(55,30,270,230);  
  $Test2->drawXYScale($DataSet_positions->GetData(),$DataSet_positions->GetDataDescription(),"Serie1","Serie2",213,217,221,TRUE,45);  
  $Test2->drawGraphArea(213,217,221,FALSE);  
  $Test2->drawGraphAreaGradient(30,30,30,-50);  
  $Test2->drawGrid(4,TRUE,230,230,230,20);  
 
  // Draw the chart  
  $Test2->setShadowProperties(2,2,0,0,0,60,4);  
  $Test2->drawXYGraph($DataSet_positions->GetData(),$DataSet_positions->GetDataDescription(),"Serie1","Serie2",0);  
  $Test2->clearShadow();  
 
  // Draw the title  
  $Title = "Rogallo position: ";
  $Title.= strval($north*57.29577951);
  $Title.= ",";
  $Title.= strval($east*57.29577951);  
  $Test2->drawTextBox(0,280,300,300,$Title,0,255,255,255,ALIGN_LEFT,TRUE,0,0,0,30);
 
  //draw altitude box
  $title = "Altitude:";
  $title.= strval(floatval($up)/1000);
  $title.= " Km, Max:";
  $title.= strval(floatval($maxalt)/1000);
  $title.= " Km";
  $Test2->drawTextBox(0,0,300,30,$title,0,255,255,255,ALIGN_CENTER,TRUE,0,0,0,30); 
 
  // Draw the legend  
  $Test2->setFontProperties("php_includes/Fonts/pf_arma_five.ttf",6);    
  $Test2->drawLegend(5,260,$DataSet_positions->GetDataDescription(),0,0,0,0,0,0,255,255,255,FALSE);  
 
  $Test2->Render("Positions.png");
  $DataSet_positions->RemoveSerie("Serie1","Serie2");
 
  //the data plots
	//the temperature
 $DataSet_temperature->AddSerie("Serie1");
 
 $DataSet_temperature->SetAbsciseLabelSerie();
 
 $DataSet_temperature->SetSerieName("Temperature (C)","Serie1");
 
 
 // Initialise the graph   
 
 $Test3 = new pChart(400,150);
 
 $Test3->setFontProperties("php_includes/Fonts/tahoma.ttf",8);   
 
 $Test3->setGraphArea(30,10,390,130);
 $Test3->drawGraphArea(213,217,221,FALSE); 
 $Test3->drawGraphAreaGradient(30,30,30,-50); 
 
 $Test3->drawScale($DataSet_temperature->GetData(),$DataSet_temperature->GetDataDescription(),SCALE_NORMAL,150,150,150,TRUE,0,2,FALSE,120);   
 
 //$Test3->drawGrid(1,TRUE,230,230,230,20);  
 
 
 
 // Draw the 0 line   
 
 $Test3->setFontProperties("php_includes/Fonts/tahoma.ttf",6);   
 
 $Test3->drawTreshold(0,143,55,72,TRUE,TRUE);
 
 // Draw the line graph
 
 $Test3->drawLineGraph($DataSet_temperature->GetData(),$DataSet_temperature->GetDataDescription());   
 
 $Test3->clearShadow();
 
 // Finish the graph   
 
 $Test3->setFontProperties("php_includes/Fonts/tahoma.ttf",8);   
 
 $Test3->drawLegend(35,14,$DataSet_temperature->GetDataDescription(),255,255,255);   
 
 $Test3->setFontProperties("php_includes/Fonts/tahoma.ttf",10);
 
 $Test3->Render("Temperature.png");
 unset($Test3);
 
  //voltage
 
 $DataSet_voltage->RemoveSerie("Serie2");
 $DataSet_voltage->AddSerie("Serie1");
 
 $DataSet_voltage->SetAbsciseLabelSerie();
 
 $DataSet_voltage->SetSerieName("Battery voltage","Serie1"); 
 
 // Initialise the graph   
 
 $Test4 = new pChart(400,150);
 
 $Test4->setFontProperties("php_includes/Fonts/tahoma.ttf",8);   
 
 $Test4->setGraphArea(30,10,390,130);
 $Test4->drawGraphArea(213,217,221,FALSE); 
 $Test4->drawGraphAreaGradient(30,30,30,-50);
 $Test4->setFixedScale(5.5,8.5,6,0,$numberofpackets,20);  
 
 $Test4->drawScale($DataSet_voltage->GetData(),$DataSet_voltage->GetDataDescription(),SCALE_START0,150,150,150,TRUE,0,2,FALSE,120);
 //$Test3->drawGrid(1,TRUE,230,230,230,20);  
 
 
 
 // Draw the 0 line   
 
 $Test4->setFontProperties("php_includes/Fonts/tahoma.ttf",6);   
 
 $Test4->drawTreshold(0,143,55,72,TRUE,TRUE);
 
 // Draw the line graph
 
 $Test4->drawLineGraph($DataSet_voltage->GetData(),$DataSet_voltage->GetDataDescription());   
 
 $Test4->clearShadow();
 
 // Finish the graph   
 
 $Test4->setFontProperties("php_includes/Fonts/tahoma.ttf",8);   
 
 $Test4->drawLegend(35,14,$DataSet_voltage->GetDataDescription(),255,255,255);   
 
 $Test4->setFontProperties("php_includes/Fonts/tahoma.ttf",10);
 
 $Test4->Render("Voltage.png");
 
 //now make the updated kml
 $fkml = fopen($kml_file, "w") or die("Cant open the kml file");
 fprintf($fkml,"%s%f,%f,%f%s",$kml[0],$east_kml[0],$north_kml[0],$altitude_kml[0],$kml[1]);
 for($k=0;$k<count($north_kml);$k++)
	fprintf($fkml,"%f,%f,%f\n",$north_kml[$k],$east_kml[$k],$altitude_kml[$k]);
 $k--;
 fprintf($fkml,"%s%f,%f,%f%s",$kml[2],$north_kml[$k],$east_kml[$k],$altitude_kml[$k],$kml[3]);
 fclose($fkml); 
}
?>
<form action="minirog.php" method="POST" id="hiddenresetform">
  <input type="hidden" name="reset" value="true">
</form>
<div id="container">
	<div id="header">
		<li><h1> Mini Rogallo Tracker - Status: <?php echo $status?> </h1></li>
	</div>	
	<img src="Headings.png">
	<div id="large_square"> 
		<img src="Positions.png">
	</div>
	<div id="small_rec_group">
		<div class="small_rec">
			<img src="Temperature.png">
		</div>
		<div class="small_rec">
			<img src="Voltage.png">
		</div>
	</div>
	<div id="footer">
		<span><a href="javascript:submit()">Reset</a> | Waiting: <?php echo ($update_time*$HTTP_SESSION_VARS["time"])?>(s) | Tracked sats: <?php echo $sats?> | Ground Status: <?php echo $gnd?> | Callsign:<?php echo $callsign ?> | <?php echo $link ?> | <a href="http://spacenear.us/tracker" target="_blank">Tracker</a> | By Laurence, 2009 </span>
	</div>
</div>
</body>
</html>
code/ground_data.txt · Last modified: 2009/03/19 22:53 by laurenceb
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