VAWT monitorizare parametri functionare cu Arduino

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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        <h1>Monitorizare turbina eoliana verticala</h1>

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</html>

<!DOCTYPE html>

<html>

<head>

<title>Monitorizare turbina eoliana verticala</title>

t = 0;

u = 0;

i = 0;

val2 = 0;

putere = 0;

vv=0;

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domReady(function(){function b(b){for(var e=b[0],d=1,g=b.length;d<g;d++)e+=b[d].substr(0,1).toUpperCase()+b[d].substr(1,b[d].length-1);return e}for(var l=document.getElementsByTagName("canvas"),q=0,v=l.length;q<v;q++)if("canv-gauge"==l[q].getAttribute("data-type")){var k=l[q],e={},g,p=parseInt(k.getAttribute("width"),10),w=parseInt(k.getAttribute("height"),10);e.renderTo=k;p&&(e.width=p);w&&(e.height=w);p=0;for(w=k.attributes.length;p<w;p++)if(g=k.attributes.item(p).nodeName,"data-type"!=g&&"data-"==

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s[0]&&""!=s[0]&&(x.from=s[0]);s[1]&&""!=s[1]&&(x.to=s[1]);s[2]&&""!=s[2]&&(x.color=s[2]);e.highlights.push(x)}break;case "animation":d[1]&&(e.animation||(e.animation={}),"fn"==d[1]&&/^\s*function\s*\(/.test(g)&&(g=eval("("+g+")")),e.animation[d[1]]=g);break;default:d=b(d);if("onready"==d)continue;if("majorTicks"==d)g=g.split(/\s+/);else if("strokeTicks"==d||"glow"==d)g="true"==g?!0:!1;else if("valueFormat"==d)if(g=g.split("."),2==g.length)g={"int":parseInt(g[0],10),dec:parseInt(g[1],10)};else continue;

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;

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

Turbine eoliene verticale

VAWT monitorizare parametri functionare cu Arduino

Codul necesar pentru VAWT Arduino .

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