VAWT ARDUINO SQL

Posted on 15 martie 2015 by admin

VAWT ARDUINO

Pentru a inregistra parametrii de functionare a unei turbine eoliene intr-o baza de date SQL se poate folosi solutia compusa din :

1. configuratia hardware din :http://vawt.ro/vawt-arduino/

2. codul pentru Arduino care transfera prin metoda POST date catre un fisier php aflat pe server

#include <dht.h>
#include <Ethernet.h>
#include <SPI.h>
#include <Wire.h>

byte mac[] = { 
  0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x01 }; //  MAC ADDRESS
EthernetClient client;


dht DHT;
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
/// se initializeaza variabilele
float val11=0; 
float val2=0;
float i1 = 0;  
float i = 0; 
float curent=0;
float tensiune=0;
int t = 0;
int h = 0;
float sample1=0; 
float sample2=0; 
float p=0;

String data;

void setup() { 
  Serial.begin(9600);

  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP"); 
  }

  data = "";
}

void loop(){

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

  ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
  /// se stabileste numarul de valori care se mediaza si timpul dintre doua masuratori
  for(int i=0;i<500;i++)
  {
    sample1+=analogRead(A1);  //se citeste sensorul de tensiune
    sample2+=analogRead(A2);  //se citeste senzorul de curent
    delay(5);
  }
  sample1=sample1/500; 
  sample2=sample2/500;

  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
  ///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;              

  ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// 
  ///se transmit date catre server

  data = "temp1=" + String(t) + "&hum1=" + String(h)+ "&curent1=" + String(i)+"&tensiune1=" + String(val2)+"&putere1=" + String(p);

  if (client.connect("www.vawt.local",80)) { // adresa server
    client.println("POST /add.php HTTP/1.1");

    client.println("Host: vawt.local"); // adresa server
    client.println("Content-Type: application/x-www-form-urlencoded"); 
    client.print("Content-Length: "); 
    client.println(data.length()); 
    client.println(); 
    client.print(data);
    Serial.print(data);
  } 

  if (client.connected()) { 
    client.stop();  // deconectare
  }

  delay(100); // intarziere pana la urmatorul ciclu de masuratori
}

#include <dht.h>

#include <Ethernet.h>

#include <SPI.h>

#include <Wire.h>

byte mac[] = {

0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x01 }; // MAC ADDRESS

EthernetClient client;

dht DHT;

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

/// se initializeaza variabilele

float val11=0;

float val2=0;

float i1 = 0;

float i = 0;

float curent=0;

float tensiune=0;

int t = 0;

int h = 0;

float sample1=0;

float sample2=0;

float p=0;

String data;

void setup() {

Serial.begin(9600);

if (Ethernet.begin(mac) == 0) {

Serial.println("Failed to configure Ethernet using DHCP");

}

data = "";

}

void loop(){

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

h = (int) DHT.humidity;

t = (int) DHT.temperature;

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

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

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

{

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

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

delay(5);

}

sample1=sample1/500;

sample2=sample2/500;

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

///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;

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

///se transmit date catre server

data = "temp1=" + String(t) + "&hum1=" + String(h)+ "&curent1=" + String(i)+"&tensiune1=" + String(val2)+"&putere1=" + String(p);

if (client.connect("www.vawt.local",80)) { // adresa server

client.println("POST /add.php HTTP/1.1");

client.println("Host: vawt.local"); // adresa server

client.println("Content-Type: application/x-www-form-urlencoded");

client.print("Content-Length: ");

client.println(data.length());

client.println();

client.print(data);

Serial.print(data);

}

if (client.connected()) {

client.stop(); // deconectare

}

delay(100); // intarziere pana la urmatorul ciclu de masuratori

}

3. un fisier „add.php” care primestele datele de la ARDUINO se conecteaza la baza de date si inregistreaza valorile in aceasta.

<?php
 
    // se conecteaza la baza de date 
    mysql_connect("Localhost", "user", "parola") or die(mysql_error()); 
    mysql_select_db("nume baza de date") or die(mysql_error()); 

    
    $temp1=$_POST["temp1"];
    $hum1=$_POST["hum1"];
        $curent1=$_POST["curent1"];
        $tensiune1=$_POST["tensiune1"];
        $putere1=$_POST["putere1"];
                    

    $query = "INSERT INTO `tempLog` (`temperature`, `humidity`, `curent`, `tensiune`, `putere`) 
        VALUES ('".$temp1."','".$hum1."','".$curent1."','".$tensiune1."','".$putere1."')"; 
    
    mysql_query($query);
    mysql_close;

      

    header("Location: index.php");

?>

<?php

// se conecteaza la baza de date

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

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

$temp1=$_POST["temp1"];

$hum1=$_POST["hum1"];

$curent1=$_POST["curent1"];

$tensiune1=$_POST["tensiune1"];

$putere1=$_POST["putere1"];

$query = "INSERT INTO `tempLog` (`temperature`, `humidity`, `curent`, `tensiune`, `putere`)

VALUES ('".$temp1."','".$hum1."','".$curent1."','".$tensiune1."','".$putere1."')";

mysql_query($query);

mysql_close;

header("Location: index.php");

4. VAWT ARDUINO o baza de date SQL care pentru exemplul de mai sus poate fi generata cu urmatorul script:

CREATE TABLE tempLog ( 
timeStamp TIMESTAMP NOT NULL PRIMARY KEY, 
temperature int(11) NOT NULL, 
humidity int(11) NOT NULL,
curent decimal(5,2) NOT NULL,
tensiune decimal(5,2) NOT NULL,
putere decimal(5,2) NOT NULL);

CREATE TABLE tempLog (

timeStamp TIMESTAMP NOT NULL PRIMARY KEY,

temperature int(11) NOT NULL,

humidity int(11) NOT NULL,

curent decimal(5,2) NOT NULL,

tensiune decimal(5,2) NOT NULL,

putere decimal(5,2) NOT NULL);

5. Un „web hosting” pentru baza de date SQL si fisiere.

Eu folosesc Hostico

VAWT Arduino

Posted on 30 ianuarie 2015 by admin

Răspunde

Codul pentru a inregistra pe SDcard parametri de functionare VAWT (curent, tensiune , putere, energie) folosind aceeasi configuratie Arduido+Shield Ethernet

#include <SD.h>
#include <Wire.h>
const int chipSelect = 4;

File dataFile;

float sample1=0;
float sample2=0;
float voltage=0.0;
float actualval;
float amps=0.0;
float totamps=0.0;
float avgamps=0.0;
float amphr=0.0;
float watt=0.0;
float energy=0.0;
float val11=0;
float val2=0;
float i1 = 0;
float i = 0;

void setup()
{

Serial.begin(9600);
while (!Serial) {
;
}

Serial.print("Initializing SD card...");

pinMode(SS, OUTPUT);

if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// don't do anything more:
while (1) ;
}
Serial.println("card initialized.");

dataFile = SD.open("energy.txt", FILE_WRITE);
if (! dataFile) {
Serial.println("error opening energy.txt");

while (1) ;
}
}

void loop()

{

long milisec = millis();
long time=milisec/1000;

for(int i=0;i<150;i++)
{
sample1+=analogRead(A1);
sample2+=analogRead(A2);
delay(2);
}
sample1=sample1/150;
sample2=sample2/150;

float temp;
val11=sample1; 
temp=val11/4.092; 
val2=(temp/10);
i1 = sample2;
i = ((.0049 * i1) - 2.5)/.066;

voltage=val2;
amps =i;

totamps=totamps+amps;
avgamps=totamps/time;
amphr=(avgamps*time);
watt =voltage*amps;
energy=(watt*time)/3600;

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

String dataString = "";
int parameter[4]={
voltage,amps,watt,energy };

for (int i = 0; i < 4; i++)
{
int sensor = parameter[i];
dataString += String(sensor);
if (i < 4)
{
dataString += ",";
}
}

dataFile.println(dataString);

Serial.println(dataString);

dataFile.flush();

delay(500);
}

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#include <SD.h>

#include <Wire.h>

const int chipSelect = 4;

File dataFile;

float sample1=0;

float sample2=0;

float voltage=0.0;

float actualval;

float amps=0.0;

float totamps=0.0;

float avgamps=0.0;

float amphr=0.0;

float watt=0.0;

float energy=0.0;

float val11=0;

float val2=0;

float i1 = 0;

float i = 0;

void setup()

{

Serial.begin(9600);

while (!Serial) {

;

}

Serial.print("Initializing SD card...");

pinMode(SS, OUTPUT);

if (!SD.begin(chipSelect)) {

Serial.println("Card failed, or not present");

// don't do anything more:

while (1) ;

}

Serial.println("card initialized.");

dataFile = SD.open("energy.txt", FILE_WRITE);

if (! dataFile) {

Serial.println("error opening energy.txt");

while (1) ;

}

void loop()

{

long milisec = millis();

long time=milisec/1000;

for(int i=0;i<150;i++)

{

sample1+=analogRead(A1);

sample2+=analogRead(A2);

delay(2);

}

sample1=sample1/150;

sample2=sample2/150;

float temp;

val11=sample1;

temp=val11/4.092;

val2=(temp/10);

i1 = sample2;

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

voltage=val2;

amps =i;

totamps=totamps+amps;

avgamps=totamps/time;

amphr=(avgamps*time);

watt =voltage*amps;

energy=(watt*time)/3600;

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

String dataString = "";

int parameter[4]={

voltage,amps,watt,energy };

for (int i = 0; i < 4; i++)

{

int sensor = parameter[i];

dataString += String(sensor);

if (i < 4)

{

dataString += ",";

}

dataFile.println(dataString);

Serial.println(dataString);

dataFile.flush();

delay(500);

}

VAWT monitorizare parametri functionare cu Arduino

Posted on 12 ianuarie 2015 by admin

Răspunde

VAWT ARDUINO ! Solutia oferita de Energy Box a deschis o cale catre o solutie de monitorizare economica si eficienta a parametrilor unei turbine eoliene. O varianta mai simpla dar nu atat de performanta ca cea oferita de Energy Box este folosirea unui WEB server instalat pe perechea Arduino+W5100. Pagina WEB se afla pe SD cardul instalat in ethernet shield w5100 :

index

VAWT ARDUINO

Componente necesare :

Arduido+Shield Ethernet 70 Ron
Senzor tensiune 19 Ron (se conecteza la pinul A1 analogic)
Senzor curent 21 Ron (se conecteza la pinul A2 analogic)
Senzor temperatura si umiditate 16 Ron (se conecteaza la pinul A0 analogic)

Total 126 Ron (daca se comanda de pe Ebay valoarea scade destul de mult) Urmeza sa completez sistemul cu :

sa introduc in program o rutina pentru scrierea datelor pe SD card
sa introduc in sistem un anemometru

Am reusit cu un router wireless portabil TL-WR702N setat in modul “acces point” sau “client” (pentru integrare intr-o retea deja existenta) sa accesez wireless parametri de functionare a eolienei.

Codul necesar pentru VAWT Arduino .

#include <Wire.h>
#include <dht.h>
#include <SPI.h>
#include <Ethernet.h>
#include <SD.h>

int u=0;
int t=0;
float val11=0; 
float val2=0;
float i1 = 0; // initial current value;  
float i = 0; // initial calculated current value;  
dht DHT;

// size of buffer used to capture HTTP requests
#define REQ_BUF_SZ   50

// MAC address from Ethernet shield sticker under board
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192, 168, 1, 4); // IP address, may need to change depending on network
EthernetServer server(80);  // create a server at port 80
File webFile;               // the web page file on the SD card
char HTTP_req[REQ_BUF_SZ] = {0}; // buffered HTTP request stored as null terminated string
char req_index = 0;              // index into HTTP_req buffer

// _____________________________________________________ 



void setup() 
{   
 
// disable Ethernet chip
    pinMode(10, OUTPUT);
    digitalWrite(10, HIGH);

    Serial.begin(9600);       // for debugging
    
    // initialize SD card
    Serial.println("Initializing SD card...");
    if (!SD.begin(4)) {
        Serial.println("ERROR - SD card initialization failed!");
        return;    // init failed
    }
    Serial.println("SUCCESS - SD card initialized.");
    // check for index.htm file
    if (!SD.exists("index.htm")) {
        Serial.println("ERROR - Can't find index.htm file!");
        return;  // can't find index file
    }
    Serial.println("SUCCESS - Found index.htm file.");
    
    Ethernet.begin(mac, ip);  // initialize Ethernet device
    server.begin();           // start to listen for clients
} 




void loop() 
{  

EthernetClient client = server.available();  // try to get client

    if (client) {  // got client?
        boolean currentLineIsBlank = true;
        while (client.connected()) {
            if (client.available()) {   // client data available to read
                char c = client.read(); // read 1 byte (character) from client
                // buffer first part of HTTP request in HTTP_req array (string)
                // leave last element in array as 0 to null terminate string (REQ_BUF_SZ - 1)
                if (req_index < (REQ_BUF_SZ - 1)) {
                    HTTP_req[req_index] = c;          // save HTTP request character
                    req_index++;
                }
                // last line of client request is blank and ends with \n
                // respond to client only after last line received
                if (c == '\n' && currentLineIsBlank) {
                    // send a standard http response header
                    client.println("HTTP/1.1 200 OK");
                    // remainder of header follows below, depending on if
                    // web page or XML page is requested
                    // Ajax request - send XML file
                    if (StrContains(HTTP_req, "ajax_inputs")) {
                        // send rest of HTTP header
                        client.println("Content-Type: text/xml");
                        client.println("Connection: keep-alive");
                        client.println();
                        // send XML file containing input states
                        XML_response(client);
                    }
                    else {  // web page request
                        // send rest of HTTP header
                        client.println("Content-Type: text/html");
                        client.println("Connection: keep-alive");
                        client.println();
                        // send web page
                        webFile = SD.open("index.htm");        // open web page file
                        if (webFile) {
                            while(webFile.available()) {
                                client.write(webFile.read()); // send web page to client
                            }
                            webFile.close();
                        }
                    }
                    // display received HTTP request on serial port
                    Serial.print(HTTP_req);
                    // reset buffer index and all buffer elements to 0
                    req_index = 0;
                    StrClear(HTTP_req, REQ_BUF_SZ);
                    break;
                }
                // every line of text received from the client ends with \r\n
                if (c == '\n') {
                    // last character on line of received text
                    // starting new line with next character read
                    currentLineIsBlank = true;
                } 
                else if (c != '\r') {
                    // a text character was received from client
                    currentLineIsBlank = false;
                }
            } // end if (client.available())
        } // end while (client.connected())
        delay(1);      // give the web browser time to receive the data
        client.stop(); // close the connection
    } // end if (client)
 
}
// send the XML file containing analog value
void XML_response(EthernetClient cl)
{
  
  char sample;


DHT.read11(A0);
t=DHT.temperature;
u=DHT.humidity;

 float temp;       
 val11=sample1; 
 temp=val11/4.092; 
 val2=(temp/10);   
 i1 = analogRead(2); 
 i = ((.0049 * i1) - 2.5)/.066;

delay(1000);  

 
 
  cl.print("<?xml version = \"1.0\" ?>");
    cl.print("<inputs>");
   
//    analog_val = i;
    cl.print("<analog>");
    cl.print(i);
    cl.print("</analog>");
    
//    analog_val = u;
    cl.print("<analog>");
    cl.print(u);
    cl.print("</analog>");
    
//    analog_val = t;
    cl.print("<analog>");
    cl.print(t);
    cl.print("</analog>");
    
//    analog_val = val2;
    cl.print("<analog>");
    cl.print(val2);
    cl.print("</analog>");
    
    cl.print("</inputs>");
}

// sets every element of str to 0 (clears array)
void StrClear(char *str, char length)
{
    for (int i = 0; i < length; i++) {
        str[i] = 0;
    }
}

// searches for the string sfind in the string str
// returns 1 if string found
// returns 0 if string not found
char StrContains(char *str, char *sfind)
{
    char found = 0;
    char index = 0;
    char len;

    len = strlen(str);
    
    if (strlen(sfind) > len) {
        return 0;
    }
    while (index < len) {
        if (str[index] == sfind[found]) {
            found++;
            if (strlen(sfind) == found) {
                return 1;
            }
        }
        else {
            found = 0;
        }
        index++;
    }

    return 0;


               
}

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#include <Wire.h>

#include <dht.h>

#include <SPI.h>

#include <Ethernet.h>

#include <SD.h>

int u=0;

int t=0;

float val11=0;

float val2=0;

float i1 = 0; // initial current value;

float i = 0; // initial calculated current value;

dht DHT;

// size of buffer used to capture HTTP requests

#define REQ_BUF_SZ 50

// MAC address from Ethernet shield sticker under board

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

IPAddress ip(192, 168, 1, 4); // IP address, may need to change depending on network

EthernetServer server(80); // create a server at port 80

File webFile; // the web page file on the SD card

char HTTP_req[REQ_BUF_SZ] = {0}; // buffered HTTP request stored as null terminated string

char req_index = 0; // index into HTTP_req buffer

// _____________________________________________________

void setup()

{

// disable Ethernet chip

pinMode(10, OUTPUT);

digitalWrite(10, HIGH);

Serial.begin(9600); // for debugging

// initialize SD card

Serial.println("Initializing SD card...");

if (!SD.begin(4)) {

Serial.println("ERROR - SD card initialization failed!");

return; // init failed

}

Serial.println("SUCCESS - SD card initialized.");

// check for index.htm file

if (!SD.exists("index.htm")) {

Serial.println("ERROR - Can't find index.htm file!");

return; // can't find index file

}

Serial.println("SUCCESS - Found index.htm file.");

Ethernet.begin(mac, ip); // initialize Ethernet device

server.begin(); // start to listen for clients

}

void loop()

{

EthernetClient client = server.available(); // try to get client

if (client) { // got client?

boolean currentLineIsBlank = true;

while (client.connected()) {

if (client.available()) { // client data available to read

char c = client.read(); // read 1 byte (character) from client

// buffer first part of HTTP request in HTTP_req array (string)

// leave last element in array as 0 to null terminate string (REQ_BUF_SZ - 1)

if (req_index < (REQ_BUF_SZ - 1)) {

HTTP_req[req_index] = c; // save HTTP request character

req_index++;

}

// last line of client request is blank and ends with \n

// respond to client only after last line received

if (c == '\n' && currentLineIsBlank) {

// send a standard http response header

client.println("HTTP/1.1 200 OK");

// remainder of header follows below, depending on if

// web page or XML page is requested

// Ajax request - send XML file

if (StrContains(HTTP_req, "ajax_inputs")) {

// send rest of HTTP header

client.println("Content-Type: text/xml");

client.println("Connection: keep-alive");

client.println();

// send XML file containing input states

XML_response(client);

}

else { // web page request

// send rest of HTTP header

client.println("Content-Type: text/html");

client.println("Connection: keep-alive");

client.println();

// send web page

webFile = SD.open("index.htm"); // open web page file

if (webFile) {

while(webFile.available()) {

client.write(webFile.read()); // send web page to client

}

webFile.close();

}

// display received HTTP request on serial port

Serial.print(HTTP_req);

// reset buffer index and all buffer elements to 0

req_index = 0;

StrClear(HTTP_req, REQ_BUF_SZ);

break;

}

// every line of text received from the client ends with \r\n

if (c == '\n') {

// last character on line of received text

// starting new line with next character read

currentLineIsBlank = true;

}

else if (c != '\r') {

// a text character was received from client

currentLineIsBlank = false;

}

} // end if (client.available())

} // end while (client.connected())

delay(1); // give the web browser time to receive the data

client.stop(); // close the connection

} // end if (client)

}

// send the XML file containing analog value

void XML_response(EthernetClient cl)

{

char sample;

DHT.read11(A0);

t=DHT.temperature;

u=DHT.humidity;

float temp;

val11=sample1;

temp=val11/4.092;

val2=(temp/10);

i1 = analogRead(2);

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

delay(1000);

cl.print("<?xml version = \"1.0\" ?>");

cl.print("<inputs>");

// analog_val = i;

cl.print("<analog>");

cl.print(i);

cl.print("</analog>");

// analog_val = u;

cl.print("<analog>");

cl.print(u);

cl.print("</analog>");

// analog_val = t;

cl.print("<analog>");

cl.print(t);

cl.print("</analog>");

// analog_val = val2;

cl.print("<analog>");

cl.print(val2);

cl.print("</analog>");

cl.print("</inputs>");

}

// sets every element of str to 0 (clears array)

void StrClear(char *str, char length)

{

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

str[i] = 0;

}

// searches for the string sfind in the string str

// returns 1 if string found

// returns 0 if string not found

char StrContains(char *str, char *sfind)

{

char found = 0;

char index = 0;

char len;

len = strlen(str);

if (strlen(sfind) > len) {

return 0;

}

while (index < len) {

if (str[index] == sfind[found]) {

found++;

if (strlen(sfind) == found) {

return 1;

}

else {

found = 0;

}

index++;

}

return 0;

}

Observatie : Nu am reusit sa urc codul in Arduino (clona) cu placa ethernet shield w5100 montata. Se incarca codul si apoi se monteza placa Wiz5100. Am folosit portiuni de cod de pe pagina Arduino codul pentru pagina HTM index (se copiaza pe SD card)

<!DOCTYPE html>
<html>
    <head>
        <title>Monitorizare turbina eoliana verticala</title>
        <script>
        t = 0;
        u = 0;
        i = 0;
        val2 = 0;
        putere = 0;
        vv=0;
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var e=b.createElement("div");e.style.fontFamily="Led";e.style.position="absolute";e.style.height=e.style.width=0;e.style.overflow="hidden";e.innerHTML=".";b.body.appendChild(e);setTimeout(function(){Gauge.initialized=!0;e.parentNode.removeChild(e)},250)}},1)})();Gauge.Collection=[];
Gauge.Collection.get=function(b){if("string"==typeof b)for(var l=0,q=this.length;l<q;l++){if((this[l].config.renderTo.tagName?this[l].config.renderTo:document.getElementById(this[l].config.renderTo)).getAttribute("id")==b)return this[l]}else return"number"==typeof b?this[b]:null};function domReady(b){window.addEventListener?window.addEventListener("DOMContentLoaded",b,!1):window.attachEvent("onload",b)}
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e[d]=g}}e=new Gauge(e);k.getAttribute("data-value")&&e.setRawValue(parseFloat(k.getAttribute("data-value")));k.getAttribute("data-onready")&&(e.onready=function(){eval(this.config.renderTo.getAttribute("data-onready"))});e.draw()}});window.Gauge=Gauge;
<!-- Gauge Code Ends -->
        
        function GetArduinoInputs()
        {
            nocache = "&nocache=" + Math.random() * 1000000;
            var request = new XMLHttpRequest();
            request.onreadystatechange = function()
            {
                if (this.readyState == 4) {
                    if (this.status == 200) {
                        if (this.responseXML != null) {
                            i  = this.responseXML.getElementsByTagName('analog')[0].childNodes[0].nodeValue;
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                            val2 = this.responseXML.getElementsByTagName('analog')[3].childNodes[0].nodeValue;
                            putere=val2*i
                        }
                    }
                }
            }
            request.open("GET", "ajax_inputs" + nocache, true);
            request.send(null);
            setTimeout('GetArduinoInputs()', 200);
            
        }
    </script>
    </head>
    <body onload="GetArduinoInputs()">
        <h1>Monitorizare turbina eoliana verticala</h1>

<canvas id="an_gauge_3" data-title="Curent" data-units="A" width="250" height="250" data-major-ticks="0 2 4 6 8 10 12 14 16 18 20" data-type="canv-gauge" data-min-value="0" data-max-value="20" data-highlights="0 2 #4D89F2, 2 8 #25B8D9, 8 12 #0BB950, 12 16 #cc5, 16 20 #f33" data-onready="setInterval( function() { Gauge.Collection.get('an_gauge_3').setValue(i);}, 200);"></canvas>

<canvas id="an_gauge_4" data-title="Tensiune" data-units="V" width="250" height="250" data-major-ticks="0 3 6 9 12 15 18 21 24 27 30" data-type="canv-gauge" data-min-value="0" data-max-value="30" data-highlights="0 6 #4D89F2, 6 12 #25B8D9, 12 18 #0BB950, 18 24 #cc5, 24 30 #f33" data-onready="setInterval( function() { Gauge.Collection.get('an_gauge_4').setValue(val2);}, 200);"></canvas>

<canvas id="an_gauge_5" data-title="Putere" data-units="Watt" width="250" height="250" data-major-ticks="0 25 50 75 100 125 150 175 200 225 250" data-type="canv-gauge" data-min-value="0" data-max-value="250" data-highlights="0 25 #4D89F2, 25 75 #25B8D9, 75 125 #0BB950, 125 200 #cc5, 200 250 #f33" data-onready="setInterval( function() { Gauge.Collection.get('an_gauge_5').setValue(putere);}, 200);"></canvas>

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        <canvas id="an_gauge_1" data-title="Temperatura" data-units="&deg;C" width="250" height="250" data-major-ticks="-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100" data-type="canv-gauge" data-min-value="-40" data-max-value="100" data-highlights="-40 -20 #4D89F2, -20 0 #25B8D9, 0 30 #0BB950, 30 50 #cc5, 50 100 #f33" data-onready="setInterval( function() { Gauge.Collection.get('an_gauge_1').setValue(t);}, 200);"></canvas>

        <canvas id="an_gauge_2" data-title="Umiditate" data-units="%" width="250" height="250" data-major-ticks="0 10 20 30 40 50 60 70 80 90 100" data-type="canv-gauge" data-min-value="0" data-max-value="100" data-highlights="0 20 #4D89F2, 20 40 #25B8D9, 40 60 #0BB950, 60 80 #cc5, 80 100 #f33" data-onready="setInterval( function() { Gauge.Collection.get('an_gauge_2').setValue(u);}, 200);"></canvas>
    </body>
</html>

<!DOCTYPE html>

<html>

<head>

<title>Monitorizare turbina eoliana verticala</title>

t = 0;

u = 0;

i = 0;

val2 = 0;

putere = 0;

vv=0;

typeof a.delta?a.delta:M[a.delta])(c);a.step(f);1==c&&clearInterval(G)},a.delay||10)}function k(){G&&clearInterval(G);var a=I-n,h=n,c=b.animation;v({delay:c.delay,duration:c.duration,delta:c.fn,step:function(b){n=parseFloat(h)+a*b;E.draw()}})}function e(a){return a*Math.PI/180}function g(b,h,c){c=a.createLinearGradient(0,0,0,c);c.addColorStop(0,b);c.addColorStop(1,h);return c}function p(){var m=93*(f/100),h=f-m,c=91*(f/100),e=88*(f/100),d=85*(f/100);a.save();b.glow&&(a.shadowBlur=h,a.shadowColor=

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function GetArduinoInputs()

{

nocache = "&nocache=" + Math.random() * 1000000;

var request = new XMLHttpRequest();

request.onreadystatechange = function()

{

if (this.readyState == 4) {

if (this.status == 200) {

if (this.responseXML != null) {

i = this.responseXML.getElementsByTagName('analog')[0].childNodes[0].nodeValue;

u = this.responseXML.getElementsByTagName('analog')[1].childNodes[0].nodeValue;

t = this.responseXML.getElementsByTagName('analog')[2].childNodes[0].nodeValue;

val2 = this.responseXML.getElementsByTagName('analog')[3].childNodes[0].nodeValue;

putere=val2*i

}

request.open("GET", "ajax_inputs" + nocache, true);

request.send(null);

setTimeout('GetArduinoInputs()', 200);

}

</script>

</head>

<h1>Monitorizare turbina eoliana verticala</h1>

</body>

</html>

VAWT online

Posted on 2 ianuarie 2015 by admin

VAWT monitorizare parametri

Prezentarea grafica a parametrilor de functionare VAWT intr-o pagina WEB poate cuprinde urmatoarele informatii in format analogic si digital : viteza vant, turatie turbina, TSR, curent incarcare, tensiune, putere turbina.

In urmatorul exemplu modulul de afisare primeste valori generate aleator pentru viteza vantului . Turatia, TSR-ul, puterea la ax si curentul de incarcare sunt calculate in functie de viteza vantului pentru un H-Rotor cu dimensiunile D=1.2m, H=1.2m si soliditate 0.75. Astfel sunt simulati si afisati parametri de functionare a unei turbine eoliene verticale.

Pentru a converti valorile analogice a parametrilor monitorizati pentru o turbina eoliana furnizati de senzori si a le transmite online catre o pagina WEB o solutie eleganta si ieftina bazata pe Arduino este oferita de Duduc Nicolae pe Energy Box. VAWT monitorizare : Cu acest tip de solutie se poate evalua performantele turbinelor eoliene si impactul modificarii parametrilor geometrici a turbinei (unghi de atac, diametru, profil aerodinamic, etc) asupra randamentului acesteia.

Este un instrument excelent pentru optimizarea performantelor unei turbine eoliene !

Definirea parametrilor principali a unei turbine eoliene de mica putere

Posted on 1 ianuarie 2015 by admin

Răspunde

Eoliana : conform American Wind Energy Association: AWEA o turbina eoliana de dimensiuni reduse este definita de urmatorii parametri principali :

AWEA Rated Power (kW)
Puterea generata de turbina la o viteza a vantului de 11 m/s.
AWEA Rated Annual Energy (Kwh)
Energia produsa de o turbina timp de un an la o viteza medie a vantului de 5m/s folosind o distributie statistica a frecventei vitezei vantului.
AWEA Rated Sound Level (dB)
Nivelul de zgomot produs de turbina masurat la o distanta de 60m de aceasta la o viteza a vantului de 5m/s. Turbinele care se incadreaza in aceste reguli sunt definite astfel:

Un exemplu de certificare a performantelor unei turbine :

eoliana certificare

Eoliana : pentru a calcula aproximativ Rated Power pentru o turbina data puteti folosi : http://vawt.ro/calcul-puterea-generata-de-vawt/

Pentru a calcula Rated Annual Energy se poate folosi fisierul Excel
Rated Annual Energy

Viteza vant Live !

Posted on 23 octombrie 2014 by admin

Viteza vant Live. O vizualizare ale condițiile meteorologice la nivel global live. Prognoza este obtinuta cu ajutorul unui supercalculator ce interpoleaza datelor obtinute in timp real de la statiile meteo (directie vant, viteza vant) si este actualizata la fiecare 3 ore.

Viteza vant la 100m altitudine

GLOBAL WIND MAP

Posted on 30 septembrie 2014 by admin

Răspunde

O harta a vitezei medii anuale a vântului la 80 de metri deasupra solului și la o rezolutie spatiala de 5 km bazata pe masuratorile facute in ultimii 10 ani creata de 3TIER.

O alta harta creata de compania Megajoule

Pornind de la acesta harta din care extragem viteza medie a vantului la inaltimea de 80m se poate estima cata energie poate produce o eoliana in functie de zona unde este amplasata folosind tabelul excel din energie turbina kWh/an

Sau varianta „live”

[iframe src=”http://earth.nullschool.net/#current/wind/surface/level/orthographic=-336.34,48.79,2453″ width=”100%” height=”500″]

, lenz2, c-rotor, darrieus, h-rotor, energie, eoliene, verticala, generator, altenator, turbina, dimensionare, energie, verde, ax, eoliana,eoliana orizontala, Magneti Permanenti, Neodym, ferita, hawt,Turbine Eoliene, Anemometre, Turbine Eoliene cu Ax Orizontal,Turbine Eoliene cu Ax Vertical

VAWT Marilyn

Posted on 5 iunie 2014 by admin

Răspunde

Acesti romani exporta in America. Asta da turbina deosebita VAWT Marilyn !

http://reswindsolutions.com/slideshow/index.html

http://www.finex-energy.ro/energia-eoliana/turbine-eoliene-cu-ax-vertical

vawt, lenz2, c-rotor, darrieus, h-rotor, energie, eoliene, verticala, generator, altenator, turbina, dimensionare, energie, verde, ax, eoliana,eoliana orizontala, Magneti Permanenti, Neodym, ferita, hawt,Turbine Eoliene, Anemometre, Turbine Eoliene cu Ax Orizontal, Turbine Eoliene cu Ax Vertical

Turbine eoliene montate in mediu urban

Posted on 3 iunie 2014 by admin

Răspunde

In princiu o turbina VAWT de acest tip trebuie sa respecte urmatoarele conditii :

Suprafata turbinei < 4mp deci un H-rotor ar avea dimensiunile maxime de 2×2 metri
Sa nu depaseasca cu mai mult de 3m inaltimea acoperisului
Puterea maxima produsa de turbina sa fie mai mica de 1.5 Kw
Zgomotul produs de turbina ≤ 40 dB
Nivelul de vibratii < 0.5 mm/s

Aceste conditii plaseaza turbinele eoliene montate in mediul urban in zona microturbinelor
Constructia turbinelor cu aceste specificatii nu necesita autorizatie de constructie in multe tari din comunitatea europeana

In aceste conditii turbinele VAWT sunt alegerea optima pentru mediul urban

sursa :Guidelines suggested by the UK Government for the installation of micro-wind turbines

VAWT

Turbine eoliene verticale

Arhive categorii: Altele

VAWT ARDUINO SQL

4. VAWT ARDUINO o baza de date SQL care pentru exemplul de mai sus poate fi generata cu urmatorul script:

VAWT Arduino

VAWT monitorizare parametri functionare cu Arduino

Codul necesar pentru VAWT Arduino .

VAWT online

Definirea parametrilor principali a unei turbine eoliene de mica putere

Eoliana : pentru a calcula aproximativ Rated Power pentru o turbina data puteti folosi : http://vawt.ro/calcul-puterea-generata-de-vawt/

Viteza vant Live !

Viteza vant la 100m altitudine

GLOBAL WIND MAP

VAWT Marilyn

Turbine eoliene montate in mediu urban