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<!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="refresh" content="5" />
<title>Untitled Document</title>
<style>
h1 {
color: green;
font-family: verdana;
font-size: 200%;
}
</style>
</head>
<body style = "background-color: beige;"></body>
<body>
<h1 style="text-align:center">RASIN OFFICE - ATMOSPHERIC DATA</h1>
<?php
// session_start();
include 'configconn.php';
include 'opendbconn.php';
include ("utility.php");
$date1 = $_GET["date1"];
$date2 = $_GET["date2"];
$newUtility = new Utility();
?>
<table align="center" width="700">
<tr bgcolor="#008000" style="color:white" align="center">
<th>
Redni broj
</th>
<th>
Vreme merenja
</th>
<th>
Atmosferski pritisak (mbar)
</th>
<th>
Temperatura (ºC)
</th>
<th>
Relativna vlaznost (%)
</th>
<th>
Nadmorska visina (m)
</th>
</tr>
<?php
if ($date1 == "")
{
$date=date('d-m-Y');
//echo "<br>"; echo "Izmereni podaci za dan: ";
// $date=date('Y-m-d H:i:s');
$dateR = $newUtility->rotateDateFormat($date);
//echo "<b>"; echo $dateR; echo "</b>"; echo "</br>";
$set_select_sql = "Select * from bme280 where time>='" . $date . "' order by time desc;";
}else{
if ($date2 == "")
{
echo "<br>Podaci za period posle: ";
echo "<b>"; echo $date1; echo "</b>"; echo "</br>";
$date1R = $newUtility->rotateDateFormat($date1);
$set_select_sql = "Select * from bme280 where time>='" . $date1R . "' order by time asc;";
}else
{
echo "<br>Podaci za period od ";
echo "<b>"; echo $date1; echo "</b>";
echo " do ";
echo "<b>"; echo $date2; echo "</b>"; echo "</br>";
$newUtility = new Utility();
$date1R = $newUtility->rotateDateFormat($date1);
$date2R = $newUtility->rotateDateFormat($date2);
$date2R = date('Y-m-d H:i:s', strtotime($date2R . ' + 1 day'));
$set_select_sql = "Select * from bme280 where time>='" . $date1R . "' and time<='" . $date2R . "' order by time asc;";
}
}
$row_color = false;
//$set_query = mysqli_query($set_select_sql);
$set_query = $con->query($set_select_sql);
//echo $set_query;
$id_number=0;
while($node_name_row = mysqli_fetch_array($set_query)) {
$id_number = $id_number+1;
$time = $node_name_row['time'];
$pressure = $node_name_row['pressure'];
$temperature = $node_name_row['temperature'];
$rel_humidity = $node_name_row['rel_humidity'];
$altitude = $node_name_row['altitude'];
$pmvA=0;
$ppdA=0;
$pmvA=pmv_ppd($temperature,$rel_humidity);
if ($row_color){
echo "<tr bgcolor=\"#9ad1f8\" align=\"center\">";
}else {
echo "<tr bgcolor=\"#cee7f9\" align=\"center\">";
}
echo "<td>";
echo $id_number;
echo "</td>";
echo "<td>";
echo $time;
echo "</td>";
echo "<td>";
echo $pressure;
echo "</td>";
echo "<td>";
echo $temperature;
echo "</td>";
echo "<td>";
echo $rel_humidity;
echo "</td>";
echo "<td>";
echo $altitude;
echo "</td>";
echo "</tr>";
$row_color = !$row_color;
}
echo "</table>";
$status=0;
include 'closedbconn.php';
function pmv_ppd($temperature,$rel_humidity){
//Data enrty
$CLO=1; //Clothing (clo)
$MET=1.1; //Methabolic rate (met)
$WME=0; //External work, normally around 0 (met)
$TA=$temperature; //Air temperature (C)
$TR=23.9; //Mean radiant temperature (C)
$VEL=0.1; //Relative air velocity (m/s)
$RH=$rel_humidity; //Relative humidity (//)
$FNPS=exp(16.6536-4030.183/($TA+235)); //Saturated vapour pressure kPa
$PA=$RH*10*$FNPS; //Water vapour pressure Pa
$ICL=0.155*$CLO; //Thermal insulation of the clothnig in m2K/W
$M=$MET*58.15; //Metabolic rate in W/m2
$W=$WME*58.15; //External work in W/m2
$MW=$M-$W; //Internal heat production of human body
if ($ICL<0.078)
$FCL=1+1.29*$ICL; //Clothing area factor
else
$FCL=1.05+0.645*$ICL;
$HCF=12.1*pow($VEL,2); //Heat transfer coefficient by forced convection
$TAA=$TA+273; //Air temperature in Kelvins
$TRA=$TR+273; //Mean radiant temperature in Kelvins
//Calculate surface temperature of clothing by iteration
$TCLA=$TAA+(35.5-$TA)/(3.5*(6.45*$ICL+0.1));
//first guess for surface temperature od clothing
$P1=$ICL*$FCL;
$P2=$P1*3.96;
$P3=$P1*100;
$P4=$P1*$TAA;
$P5=308.7-0.0288*$MW+$P2*pow($TRA/100,4);
$XN=$TCLA/100;
$XF=0;
$N=0; //Number of iterations
$EPS=0.00015; //Stop criteria in iterations
//Iterations
$flag = 1;
while ($flag == 1)
{
$XF=($XF+$XN)/2; //Heat transfer coefficient by natural convection
$HCN=2.38*pow(abs(100*$XF-$TAA),0.25);
if ($HCF>$HCN)
$HC=$HCF;
else
$HC=$HCN;
$XN=($P5+$P4*$HC-$P2*pow($XF,4))/(100+$P3*$HC);
$N=$N+1;
if ($N>150)
break;
if (abs($XN-$XF)<=$EPS)
$flag = 0;
}
//If loop breaks from N>150 flag is set to true
if ($flag==0)
{
$TCL=100*$XN-273; //Surface temperature of the clothing
//Heat loss components
$HL1=3.05*0.001*(5733-6.99*$MW-$PA); //Heat loss difference through skin
if ($MW>58.15) //Heat loss by sweating (comfort)
$HL2=0.42*($MW-58.15);
else
$HL2=0;
$HL3=1.7*0.00001*$M*(5867-$PA); //Latent respiration heat loss
$HL4=0.0014*$M*(34-$TA); //Dry respiration heat loss
$HL5=3.96*$FCL*(pow($XN,4)-pow($TRA/100,4)); //Heat loss by radiation
$HL6=$FCL*$HC*($TCL-$TA); //Heat loss by convection
//Calculate PMV and PPD
$TS=0.303*exp(-0.036*$M)+0.028; //Thermal sensation transformation coefficient
$PMV=$TS*($MW-$HL1-$HL2-$HL3-$HL4-$HL5-$HL6); //Predicted mean vote
$PPD=100-95*exp(-0.03353*pow($PMV,4)-0.2179*pow($PMV,2));
}
else
{
$PMV=99999;
$PPD=100;
}
return $PMV;
}
?>
</body>
</html>