WEMOS D1 MINI

Posted on 2 februarie 2017 by admin

Monitorizarea online wireless a puterii produse de o turbina VAWT se poate realiza cu doar 5$ !

Sunt necesare doar o placa de dezvoltare cu WEMOS D1 MINI ~2.6 $ si un senzor de curent INA 219 ~1.7$.

Daca se inlocuieste rezistenta 0.1 ohm de pe senzorul INA219 cu o rezistenta de 0.01 ohm, 10W se pot masura curenti de pana la 32A cu o rezolutie de 8mA.

Codul necesar :

#include <DHT.h>
#include <Wire.h>
#include <Adafruit_INA219.h>
#include <ESP8266WiFi.h>
#include "ThingSpeak.h"

int AC = 0;
int lastAC = 0;
int turatie = 0;




unsigned long myChannelNumber = 22793;
const char * myWriteAPIKey = "cheie";



const char* ssid = "HUAWEI-SQ77";
const char* password = "parola";

#define DHTPIN D4
#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);

WiFiClient client;
Adafruit_INA219 ina219;




void setup() {
  Serial.begin(115200);
  delay(10);
  dht.begin();
  WiFi.begin(ssid, password);

  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(5000);
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  ina219.begin();
  Serial.println("Measuring voltage and current with INA219 ...");
  ThingSpeak.begin(client);
  Serial.println("ThingSpeak connected");
}



void loop() {

 float t = dht.readTemperature();
 float h = dht.readHumidity();
 delay(5);
if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }


  float shuntvoltage = 0;
  float busvoltage = 0;
  float current_mA = 0;
  float loadvoltage = 0;
  float power = 0;
  float turatiei = 0;
  float current_A = 0;


for(int i=0;i<2500;i++)
  {

  shuntvoltage = shuntvoltage + ina219.getShuntVoltage_mV();
  busvoltage =  busvoltage + ina219.getBusVoltage_V();
  current_mA = current_mA + ina219.getCurrent_mA();


   AC = digitalRead(5);
    // Se contorizeaza trecerea prin "0"
   if ((AC == LOW) && (AC != lastAC ))
   {
      turatiei++;
    }
    lastAC= digitalRead(5);
    delay(5);
  }


turatie=turatiei*60/8/15;
shuntvoltage = shuntvoltage/2500;
busvoltage = busvoltage/2500;
loadvoltage = busvoltage + (shuntvoltage / 1000);
current_A = current_mA/2500/1000;
power = loadvoltage * current_A;


  Serial.print("Bus Voltage:   "); Serial.print(busvoltage);
Serial.println(" V");
  Serial.print("Shunt Voltage: "); Serial.print(shuntvoltage);
Serial.println(" mV");
  Serial.print("Load Voltage:  "); Serial.print(loadvoltage);
Serial.println(" V");
  Serial.print("Current:       "); Serial.print(current_A);
Serial.println(" A");
  Serial.print("Power: "); Serial.print(power); Serial.println(" W");
  Serial.println("");


  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" degrees Celsius Humidity: ");
  Serial.print(h);
  Serial.println("");

ThingSpeak.setField(1,loadvoltage);
ThingSpeak.setField(2,current_A);
ThingSpeak.setField(3,power);
ThingSpeak.setField(4,turatie);
ThingSpeak.setField(5,t);
ThingSpeak.setField(6,h);
ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
Serial.println("Send to ThingSpeak");


}

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#include <DHT.h>

#include <Wire.h>

#include <Adafruit_INA219.h>

#include <ESP8266WiFi.h>

#include "ThingSpeak.h"

int AC = 0;

int lastAC = 0;

int turatie = 0;

unsigned long myChannelNumber = 22793;

const char * myWriteAPIKey = "cheie";

const char* ssid = "HUAWEI-SQ77";

const char* password = "parola";

#define DHTPIN D4

#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);

WiFiClient client;

Adafruit_INA219 ina219;

void setup() {

Serial.begin(115200);

delay(10);

dht.begin();

WiFi.begin(ssid, password);

Serial.println();

Serial.print("Connecting to ");

Serial.println(ssid);

WiFi.begin(ssid, password);

while (WiFi.status() != WL_CONNECTED) {

delay(5000);

Serial.print(".");

}

Serial.println("");

Serial.println("WiFi connected");

ina219.begin();

Serial.println("Measuring voltage and current with INA219 ...");

ThingSpeak.begin(client);

Serial.println("ThingSpeak connected");

}

void loop() {

float t = dht.readTemperature();

float h = dht.readHumidity();

delay(5);

if (isnan(h) || isnan(t)) {

Serial.println("Failed to read from DHT sensor!");

return;

}

float shuntvoltage = 0;

float busvoltage = 0;

float current_mA = 0;

float loadvoltage = 0;

float power = 0;

float turatiei = 0;

float current_A = 0;

for(int i=0;i<2500;i++)

{

shuntvoltage = shuntvoltage + ina219.getShuntVoltage_mV();

busvoltage = busvoltage + ina219.getBusVoltage_V();

current_mA = current_mA + ina219.getCurrent_mA();

AC = digitalRead(5);

// Se contorizeaza trecerea prin "0"

if ((AC == LOW) && (AC != lastAC ))

{

turatiei++;

}

lastAC= digitalRead(5);

delay(5);

}

turatie=turatiei*60/8/15;

shuntvoltage = shuntvoltage/2500;

busvoltage = busvoltage/2500;

loadvoltage = busvoltage + (shuntvoltage / 1000);

current_A = current_mA/2500/1000;

power = loadvoltage * current_A;

Serial.print("Bus Voltage: "); Serial.print(busvoltage);

Serial.println(" V");

Serial.print("Shunt Voltage: "); Serial.print(shuntvoltage);

Serial.println(" mV");

Serial.print("Load Voltage: "); Serial.print(loadvoltage);

Serial.println(" V");

Serial.print("Current: "); Serial.print(current_A);

Serial.println(" A");

Serial.print("Power: "); Serial.print(power); Serial.println(" W");

Serial.println("");

Serial.print("Temperature: ");

Serial.print(t);

Serial.print(" degrees Celsius Humidity: ");

Serial.print(h);

Serial.println("");

ThingSpeak.setField(1,loadvoltage);

ThingSpeak.setField(2,current_A);

ThingSpeak.setField(3,power);

ThingSpeak.setField(4,turatie);

ThingSpeak.setField(5,t);

ThingSpeak.setField(6,h);

ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

Serial.println("Send to ThingSpeak");

}

Contine suplimentar cod pentru integrarea unui senzor de temperatura / umiditate DH11 si pentru determinarea turatiei.

VAWT ThingSpeak

Posted on 11 octombrie 2016 by admin

Răspunde

VAWT ThingSpeak : o solutie de vizualizare online a parametrilor de functionare a unei turbine eoliene verticale .

https://thingspeak.com/channels/22793

Codul pentru Arduino

#include <dht.h>
#include <Ethernet.h>
#include <SPI.h>
#include <Wire.h>
#include <avr/wdt.h>
#include "ThingSpeak.h"

int t = 0;
int h = 0;
float val11=0; 
float val2=0;
float i1 = 0;  
float i = 0; 
float curent=0;
float tensiune=0;
float sample1=0; 
float sample2=0;
float sample3=0; 
float p=0;
int turatie = 0;
int AC = 0;         
int lastAC = 0; 

dht DHT;

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
IPAddress ip(192, 168, 1, 100);
IPAddress myDNS(192, 168, 1, 1);
IPAddress Gateway(192, 168, 1, 1);

// char server[] = "www.thingspeak.com";
IPAddress server(184, 106, 153, 149);

EthernetClient client;

unsigned long myChannelNumber = 22793; 
const char * myWriteAPIKey = "xxxxxxxxxx";



void setup() {
Serial.begin(9600);
Ethernet.begin(mac, ip, myDNS, Gateway);
ThingSpeak.begin(client);

}


void loop() {

DHT.read11(A0);  // se citeste senzorul de temperatura si umiditate
  h = DHT.humidity;
  t = DHT.temperature; 


/// se stabileste numarul de valori care se mediaza si timpul dintre doua masuratori
  for(int i=0;i<2500;i++)
  {
    sample1+=analogRead(A1);  //se citeste sensorul de tensiune
    sample2+=analogRead(A2);  //se citeste senzorul de curent
    
    AC = digitalRead(2); 
    // Se contorizeaza trecerea prin "0"
   if ((AC == LOW) && (AC != lastAC ))
   {      
      sample3++;     
    }
    lastAC= digitalRead(2);
     
    delay(5);
  }
  sample1=sample1/2500; 
  sample2=sample2/2500;
  ////////////////////////////////////////////
  ///se calculeaza valorile 
  float temp;       
  val11=sample1; 
  temp=val11/4.092; 
  val2=(temp/10);
  i1 = sample2; 
  i = ((.0049 * i1) - 2.5)/.066;
  p=i*val2;              
  turatie=sample3*60/8/15;


ThingSpeak.setField(1,val2); 
ThingSpeak.setField(2,i);
ThingSpeak.setField(3,p);
ThingSpeak.setField(4,turatie);
ThingSpeak.setField(5,t); 
ThingSpeak.setField(6,h);
ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

}

#include <dht.h>

#include <Ethernet.h>

#include <SPI.h>

#include <Wire.h>

#include <avr/wdt.h>

#include "ThingSpeak.h"

int t = 0;

int h = 0;

float val11=0;

float val2=0;

float i1 = 0;

float i = 0;

float curent=0;

float tensiune=0;

float sample1=0;

float sample2=0;

float sample3=0;

float p=0;

int turatie = 0;

int AC = 0;

int lastAC = 0;

dht DHT;

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};

IPAddress ip(192, 168, 1, 100);

IPAddress myDNS(192, 168, 1, 1);

IPAddress Gateway(192, 168, 1, 1);

// char server[] = "www.thingspeak.com";

IPAddress server(184, 106, 153, 149);

EthernetClient client;

unsigned long myChannelNumber = 22793;

const char * myWriteAPIKey = "xxxxxxxxxx";

void setup() {

Serial.begin(9600);

Ethernet.begin(mac, ip, myDNS, Gateway);

ThingSpeak.begin(client);

}

void loop() {

DHT.read11(A0); // se citeste senzorul de temperatura si umiditate

h = DHT.humidity;

t = DHT.temperature;

/// se stabileste numarul de valori care se mediaza si timpul dintre doua masuratori

for(int i=0;i<2500;i++)

{

sample1+=analogRead(A1); //se citeste sensorul de tensiune

sample2+=analogRead(A2); //se citeste senzorul de curent

AC = digitalRead(2);

// Se contorizeaza trecerea prin "0"

if ((AC == LOW) && (AC != lastAC ))

{

sample3++;

}

lastAC= digitalRead(2);

delay(5);

}

sample1=sample1/2500;

sample2=sample2/2500;

////////////////////////////////////////////

///se calculeaza valorile

float temp;

val11=sample1;

temp=val11/4.092;

val2=(temp/10);

i1 = sample2;

i = ((.0049 * i1) - 2.5)/.066;

p=i*val2;

turatie=sample3*60/8/15;

ThingSpeak.setField(1,val2);

ThingSpeak.setField(2,i);

ThingSpeak.setField(3,p);

ThingSpeak.setField(4,turatie);

ThingSpeak.setField(5,t);

ThingSpeak.setField(6,h);

ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);

}

Vibro wind arrays

Posted on 9 aprilie 2016 by admin

Răspunde

Vibro wind arrays. O matrice de oscilatori formeaza un panou cu o suprafata de un metru patrat care poate extrage 54w la 10m/s cu un randament de ~10%. In mediu urban asemenea structuri oscilante pot fi montate pe peretii cladirilor producand energie de la 2 m/s folosind generatoare piezoelectrice.

Vibro wind arrays

vezi si : Vortex

vawt, lenz2, savonius, darrieus, c-rotor, h-rotor,turbine eoliene cu ax vertical, energie verde, generatoare, wind turbines, vertical axis wind turbine, vawt, Alternators, wind power, alternative energy, free energy, diy plans, wind turbine free plans, generator flux axial cu magneti permanenti ferita, eoliana verticala, eoliene verticale.

Windyty viteza vantului live

Posted on 19 martie 2016 by admin

Răspunde

Viteza vantului si prognoza meteo live ! . O harta interactiva precisa cu foarte multe informatii referitoare la conditiile meteo.

Informatia preluata de pe : vawtsonly

Vezi si earth.

VAWT & Google interes crescut in 2009

Posted on 4 martie 2016 by admin

Răspunde

O analiza Google a nivelului de interes pentru termenul de cautare VAWT.

Maximul de interes pentru VAWT a fost atins in 2009 si surpriza, numarul cel mai mare de cautari au provenit din Polonia.

Constructorii polonezi au pus accentul pe constructia de turbine eoliene verticale cu design modular care permit generarea de energie electrică pe o scară mică, pentru consumul propriu al unei gospodării si pe eficienta marita a turbinelor pentru viteze mici ale vantului (startup v= 1m/s vezi turbinele cu componenta drag predominanta)

Rezultatul : proiecte de succes bazate atat pe turbine Savonius cat si Darrieus

https://www.youtube.com/watch?v=W_e_NW1GllI

Eoliana verticala ? Vortex bladeless

Posted on 12 mai 2015 by admin

Răspunde

O eoliana verticala care nu este turbina !
Aceasta eoliana verticala nu are miscare de rotatie in jurul unei axe si nu are pale !
vortex-bladeless

Conceptul celor de la Vortex bladeless consta in transformarea energiei eoliene in energie de oscilatie mecanica generata de turbulentele din spatele structurii cilindrice conice . Frecventa oscilatiei trebuie sa fie egala cu frecventa de rezonanta a structurii pentru a asigura un transfer maxim de energie

https://www.youtube.com/watch?v=iqL4Dsq3ryo

Daca eoliana verticala realizata de Vortex este viabila ramane de vazut in viitor in conditiile in care randamentul solutiei este mai mic de ~ 3 ori decat o turbina HAWT dar ideea in sine este revolutionara si sparge tiparele actuale.

Prototipul (de 6m inaltime) foloseste un generator bazat pe inductie electromagnetica dar un generator piezoelectric ar asigura o eficienta maxima a sistemului.

Un concept asemanator este WindBelt.

VAWT & HAWT & Other

Posted on 29 aprilie 2015 by admin

Fara a fi completa o lista cu solutii pentru conversia energiei eoliene.

Singurul lucru in comun a tuturor solutiilor este ca nici una nu depaseste randamentul maxim definit de legea lui Betz.

Referitor la eficienta, HAWT cu trei pale domina clasamentul. Turbinele eoliene verticale VAWT reprezinta solutii de nisa in zonele urbane cu turbulente ale vantului sau in zonele cu viteze mici sau foarte mari ale vantului.
Din punctul meu de vedere cele mai exotice sunt cele care se bazeaza pe efectul Magnus .

Determinarea turatie turbina VAWT

Posted on 28 martie 2015 by admin

Răspunde

Turatie turbina : Una din metode este masurarea frecventei curentului alternativ produs de generator. In functie de numarul magnetilor de pe disc si a numarului de impulsuri contorizate in unitatea de timp se poate determina turatia turbinei.

turatie turbina : Codul pentru determinare turatie cu ajutorul Arduino

for(int i=0;i<500;i++)
  {
    sample1+=analogRead(A1);  //se citeste tensiunea
    sample2+=analogRead(A2); //se citeste curentul
    
    AC = digitalRead(2); //

   // Se contorizeaza trecerea prin "0"
   if ((AC == LOW) && (AC != lastAC ))
   {      
      sample3++;     
    }
    
    lastAC= digitalRead(2);
    delay(5);
  }
  sample1=sample1/500; // se mediaza tensiunea
  sample2=sample2/500; // se mediaza curentul
  turatie=sample3*60/2.5/8; // se calculeaza turatia in functie de numarul de magneti

for(int i=0;i<500;i++)

{

sample1+=analogRead(A1); //se citeste tensiunea

sample2+=analogRead(A2); //se citeste curentul

AC = digitalRead(2); //

// Se contorizeaza trecerea prin "0"

if ((AC == LOW) && (AC != lastAC ))

{

sample3++;

}

lastAC= digitalRead(2);

delay(5);

}

sample1=sample1/500; // se mediaza tensiunea

sample2=sample2/500; // se mediaza curentul

turatie=sample3*60/2.5/8; // se calculeaza turatia in functie de numarul de magneti

Grafic putere turbina VAWT live

Posted on 18 martie 2015 by admin

Răspunde

VAWT live. Pentru realizarea unui grafic de putere in timp real sunt necesare urmatoarele :
un fisier „putere.php” care extrage valorile din baza de date SQL

<?php

function connect_db()
{
    
    mysql_connect("Localhost", "user", "parola") or die(mysql_error()); 
    mysql_select_db("nume baza de date") or die(mysql_error()); 
}


function showUsageTable()
{
   echo "<a href=index.php>Grafic in timp real</a><br>";
   echo "<center>Putere generata turbina</center><br>";
   connect_db();
 
   $result = mysql_query("SELECT * FROM tempLog WHERE timeStamp >= CURRENT_TIMESTAMP - INTERVAL 1 HOUR ORDER BY timeStamp DESC") or die (mysql_error());
?>
<table border="1" align=center> 
<tr><td  width=160>Data si timp</td><td width=120>Temperatura (C)</td><td width=120>Umiditate (%)</td><td width=120>Curent (A)</td><td width=120>Tensiune (V)</td><td width=120>Putere (W) </td></tr>
<?php
   while ($row = mysql_fetch_assoc($result)) {
    echo "<tr>";
    echo "<td>".$row['timeStamp']."</td>";
    echo "<td>".$row['temperature']."</td>";
    echo "<td>".$row['humidity']."</td>";
    echo "<td>".$row['curent']."</td>";
    echo "<td>".$row['tensiune']."</td>";
    echo "<td>".$row['putere']."</td>";
    echo "</tr>";
   }
?>
 </table> 
<?php
}


function getRange($from, $to)
{
   connect_db(); 
   $sql="SELECT * FROM tempLog  WHERE timeStamp BETWEEN '${from}' AND '${to}' ORDER BY timeStamp ASC";
   $result = mysql_query($sql) or die (mysql_error());

    $ar=array();
    while ($row = mysql_fetch_assoc($result)) {
        $pwr=intval($row['putere']);        
        if ($pwr != 0){
            array_push($ar, array(strtotime($row['timeStamp'])*1000, $pwr));
        }
    }

    return $ar;
}


function getRangeJsn($from, $to)
{
    header("Content-type: text/json");
    $ar = getRange($from, $to);
    echo json_encode($ar);
}

function getLast($minutes)
{
    $tm = time();
    $from = date('Y-m-d H:i:s', $tm - $minutes*60);
    $to = date('Y-m-d H:i:s', $tm);
    return getRangeJsn($from, $to);
}

function getNow()
{
     header("Content-type: text/json");
    connect_db();
 
   $result = mysql_query("SELECT * FROM tempLog ORDER BY timeStamp DESC LIMIT 1") or die (mysql_error());
   $row = mysql_fetch_assoc($result);
    if ($row){
    
        $ret = array(strtotime($row['timeStamp'])*1000, intval($row['putere']));
        echo json_encode($ret);
 
   }
}

function updateputere($val)
{
   connect_db();
   $result = "INSERT INTO tempLog (putere) VALUES (".$val.")";
   $add_member = mysql_query($result);
}


foreach($_GET as $key => $val){
   switch ($key){
    case "last":
        getLast($val);
        return;
    case "now":
        getNow();
        return;
    case "add":
       updateputere($val);
       return;
    break;
   }
}
  

showUsageTable();
?>

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<?php

function connect_db()

{

mysql_connect("Localhost", "user", "parola") or die(mysql_error());

mysql_select_db("nume baza de date") or die(mysql_error());

}

function showUsageTable()

{

echo "<a href=index.php>Grafic in timp real</a><br>";

echo "<center>Putere generata turbina</center><br>";

connect_db();

$result = mysql_query("SELECT * FROM tempLog WHERE timeStamp >= CURRENT_TIMESTAMP - INTERVAL 1 HOUR ORDER BY timeStamp DESC") or die (mysql_error());

<tr><td width=160>Data si timp</td><td width=120>Temperatura (C)</td><td width=120>Umiditate (%)</td><td width=120>Curent (A)</td><td width=120>Tensiune (V)</td><td width=120>Putere (W) </td></tr>

<?php

while ($row = mysql_fetch_assoc($result)) {

echo "<tr>";

echo "<td>".$row['timeStamp']."</td>";

echo "<td>".$row['temperature']."</td>";

echo "<td>".$row['humidity']."</td>";

echo "<td>".$row['curent']."</td>";

echo "<td>".$row['tensiune']."</td>";

echo "<td>".$row['putere']."</td>";

echo "</tr>";

}

</table>

<?php

}

function getRange($from, $to)

{

connect_db();

$sql="SELECT * FROM tempLog WHERE timeStamp BETWEEN '${from}' AND '${to}' ORDER BY timeStamp ASC";

$result = mysql_query($sql) or die (mysql_error());

$ar=array();

while ($row = mysql_fetch_assoc($result)) {

$pwr=intval($row['putere']);

if ($pwr != 0){

array_push($ar, array(strtotime($row['timeStamp'])*1000, $pwr));

}

return $ar;

}

function getRangeJsn($from, $to)

{

header("Content-type: text/json");

$ar = getRange($from, $to);

echo json_encode($ar);

}

function getLast($minutes)

{

$tm = time();

$from = date('Y-m-d H:i:s', $tm - $minutes*60);

$to = date('Y-m-d H:i:s', $tm);

return getRangeJsn($from, $to);

}

function getNow()

{

header("Content-type: text/json");

connect_db();

$result = mysql_query("SELECT * FROM tempLog ORDER BY timeStamp DESC LIMIT 1") or die (mysql_error());

$row = mysql_fetch_assoc($result);

if ($row){

$ret = array(strtotime($row['timeStamp'])*1000, intval($row['putere']));

echo json_encode($ret);

}

function updateputere($val)

{

connect_db();

$result = "INSERT INTO tempLog (putere) VALUES (".$val.")";

$add_member = mysql_query($result);

}

foreach($_GET as $key => $val){

switch ($key){

case "last":

getLast($val);

return;

case "now":

getNow();

return;

case "add":

updateputere($val);

return;

break;

}

showUsageTable();

VAWT live

Un fisier „index.php” care seteaza perioada de afisare a valorilor (implicit 60 minute) , rata de refresh (implicit 5 secunde) si genereaza graficul puterii generate folosind Highcharts.

<!DOCTYPE HTML>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
        <title>Monitorizare turbina eoliana verticala</title>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
        <script type="text/javascript">
        
$(function () {

    
    var updatePeriod=5;

    
    var timeWindow=60;

    //------------------------------------------------------------------
    var xmlhttp;
    if (window.XMLHttpRequest)    {
        // code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
    }else{
        // code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
   }

    function formatUnits(watts) 
    {
        var units=['W', 'KW', 'MW', 'GW'];
        var unit = 0;
    
        while (Math.floor(watts) > 1000){
            unit++;
            watts /= 1000.0;
        }
        
        var str=""+watts+" "+units[unit];
        return str;
    }
  
    var chart;
    var firstSampleTime;

    function requestData() 
    {
          
                        $.ajax({
            url: 'putere.php?now',
            cache: false,
                    
            success: function(point) {
                var series = chart.series[0];

                // Start shifting (removing old samples) the graph to show only 
                // samples for last 'timeWindow' minutes
                var shift = (point[0]-firstSampleTime)/1000.0 > timeWindow*60; 
    
                // Add new point to the chart
                if (series.data.length > 1){
                    var str = "Putere generata: "+formatUnits(point[1]);
                                        document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";
                                      
                    if (point[1] != 0){
                        chart.series[0].addPoint(point, true, shift);
                    }
                }

                // Schedule another update
            setTimeout(requestData, updatePeriod*1000); 
             
            },

            error: function(result) {
                    var str = "Sistem offline. Incercare reconectare...";
                    document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";            
                setTimeout(requestData, updatePeriod*1000);    
            }
        });
    }  
    
    
    function prefetchData() 
    {
        document.getElementById("myDiv").innerHTML="<h2>Se transfera date...</h2>";

        $.ajax({
            url: 'power.php?last='+timeWindow,
            cache: false,

            success: function(points) {
                
            chart.series[0].setData(points, true);
                var str = "Putere generata: "+formatUnits(points[points.length-1][1]);
                document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";
                
                // Store timestamp of the first received sample
                firstSampleTime=points[0][0];
            },
    
            error: function(result) {
                var str = "ERROR: "+String(result);
                document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";            
            setTimeout(prefetchData, updatePeriod*1000);    
            }

        });
        return;
    }  
  

    function chartNow()
    {
    chart = new Highcharts.Chart({
            chart: {
                renderTo: 'container',
                type: 'spline',
                marginRight: 10,
                events: {
                  load: requestData
                }
            },
            title: {
                 text: 'Putere turbina (interval de '+timeWindow+' minute)'
            },
            xAxis: {
                 type: 'datetime',
                 // Resolution on the x axis.
                 tickPixelInterval: 100
            },
            yAxis: {
                 title: {
                     text: 'Putere (W)'
                 },
                 plotLines: [{
                     value: 0,
                     width: 1,
                     color: '#808080'
                 }]
            },
            tooltip: {
                // This will appear when you hover above the graph in the chart
                 formatter: function() {
                         return 'Timp: '+Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) +'<br>'+
                         'Putere generata: '+Highcharts.numberFormat(this.y, 2)+' Watts';
                 }
            },
            legend: {
                 enabled: false
            },
            exporting: {
                 enabled: false
            },
            series: [{
                 marker: {
                     radius: 2
                 },
                 name: 'Putere (Watts)',
            }]
        
        });
    }

    $(document).ready(function() {
        Highcharts.setOptions({
           global: {
            useUTC: false
         }
      });

        chartNow();
    prefetchData();
   });
    
});

</script>
</head>

<body>

<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/themes/gray.js"></script>
<script src="http://code.highcharts.com/modules/exporting.js"></script>

<table width=100%>
<tr>

<td>
    <div id="container" style="min-width: 400px; height: 400px; margin: 0 auto"></div>
    <div id="myDiv"><h2>Usage now: 0 Watts</h2></div>
        <a href="putere.php">Vezi datele</a><BR>   
        
</td>
</tr>
</table>

</body>

<head>

</html>

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<!DOCTYPE HTML>

<html>

<head>

<title>Monitorizare turbina eoliana verticala</title>

$(function () {

var updatePeriod=5;

var timeWindow=60;

//------------------------------------------------------------------

var xmlhttp;

if (window.XMLHttpRequest) {

// code for IE7+, Firefox, Chrome, Opera, Safari

xmlhttp=new XMLHttpRequest();

}else{

// code for IE6, IE5

xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

}

function formatUnits(watts)

{

var units=['W', 'KW', 'MW', 'GW'];

var unit = 0;

while (Math.floor(watts) > 1000){

unit++;

watts /= 1000.0;

}

var str=""+watts+" "+units[unit];

return str;

}

var chart;

var firstSampleTime;

function requestData()

{

$.ajax({

url: 'putere.php?now',

cache: false,

success: function(point) {

var series = chart.series[0];

// Start shifting (removing old samples) the graph to show only

// samples for last 'timeWindow' minutes

var shift = (point[0]-firstSampleTime)/1000.0 > timeWindow*60;

// Add new point to the chart

if (series.data.length > 1){

var str = "Putere generata: "+formatUnits(point[1]);

document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";

if (point[1] != 0){

chart.series[0].addPoint(point, true, shift);

}

// Schedule another update

setTimeout(requestData, updatePeriod*1000);

error: function(result) {

var str = "Sistem offline. Incercare reconectare...";

document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";

setTimeout(requestData, updatePeriod*1000);

}

});

}

function prefetchData()

{

document.getElementById("myDiv").innerHTML="<h2>Se transfera date...</h2>";

$.ajax({

url: 'power.php?last='+timeWindow,

cache: false,

success: function(points) {

chart.series[0].setData(points, true);

var str = "Putere generata: "+formatUnits(points[points.length-1][1]);

document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";

// Store timestamp of the first received sample

firstSampleTime=points[0][0];

error: function(result) {

var str = "ERROR: "+String(result);

document.getElementById("myDiv").innerHTML="<h2>"+str+"</h2>";

setTimeout(prefetchData, updatePeriod*1000);

}

});

return;

}

function chartNow()

{

chart = new Highcharts.Chart({

chart: {

renderTo: 'container',

type: 'spline',

marginRight: 10,

events: {

load: requestData

}

title: {

text: 'Putere turbina (interval de '+timeWindow+' minute)'

xAxis: {

type: 'datetime',

// Resolution on the x axis.

tickPixelInterval: 100

yAxis: {

title: {

text: 'Putere (W)'

plotLines: [{

value: 0,

width: 1,

color: '#808080'

}]

tooltip: {

// This will appear when you hover above the graph in the chart

formatter: function() {

return 'Timp: '+Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) +'<br>'+

'Putere generata: '+Highcharts.numberFormat(this.y, 2)+' Watts';

}

legend: {

enabled: false

exporting: {

enabled: false

series: [{

marker: {

radius: 2

name: 'Putere (Watts)',

}]

});

}

$(document).ready(function() {

Highcharts.setOptions({

global: {

useUTC: false

}

});

chartNow();

prefetchData();

});

</script>

</head>

<body>

<tr>

<td>

<div id="myDiv"><h2>Usage now: 0 Watts</h2></div>

<a href="putere.php">Vezi datele</a><BR>

</td>

</tr>

</table>

</body>

<head>

</html>

Afisare live a parametrilor VAWT

Posted on 16 martie 2015 by admin

Răspunde

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”

<?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;


?>

<?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:

<!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>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<head>

<title>

standard title page

</title>

<!--

google api don’t change

-->

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>

</html>

VAWT

Turbine eoliene verticale

Arhive categorii: Altele

WEMOS D1 MINI

Sunt necesare doar o placa de dezvoltare cu WEMOS D1 MINI ~2.6 $ si un senzor de curent INA 219 ~1.7$.

Codul necesar :

VAWT ThingSpeak

Vibro wind arrays

Vibro wind arrays

Windyty viteza vantului live

VAWT & Google interes crescut in 2009

Maximul de interes pentru VAWT a fost atins in 2009 si surpriza, numarul cel mai mare de cautari au provenit din Polonia.

Rezultatul : proiecte de succes bazate atat pe turbine Savonius cat si Darrieus

Eoliana verticala ? Vortex bladeless

Daca eoliana verticala realizata de Vortex este viabila ramane de vazut in viitor in conditiile in care randamentul solutiei este mai mic de ~ 3 ori decat o turbina HAWT dar ideea in sine este revolutionara si sparge tiparele actuale.

VAWT & HAWT & Other

Determinarea turatie turbina VAWT

turatie turbina : Codul pentru determinare turatie cu ajutorul Arduino

Grafic putere turbina VAWT live

VAWT live

Afisare live a parametrilor VAWT

VAWT online codul necesar :