森林火灾监测和检测系统原理图及程序

########( PART-1 )###### Receiver Side Arduino CODE ########################## // Include RadioHead Amplitude Shift Keying Library #include <SoftwareSerial.h> #include <RH_ASK.h> // Include dependant SPI Library #include <SPI.h> #include <DHT.h> SoftwareSerial mySerial(4, 3); //Constants #define DHTPIN 2 // what pin we're connected to #define DHTTYPE DHT11 // DHT11 int smokeA0 = A5; // Your threshold value int sensorThres = 400; // Define Variables DHT dht(DHTPIN, DHTTYPE); // Initialize DHT sensor for normal 16mhz Arduino //Variables float hum; //Stores humidity value float temp; //Stores temperature value // Define output strings String str_humid; String str_temp; String str_smk; String str_out; // Create Amplitude Shift Keying Object RH_ASK rf_driver; void setup() { pinMode(smokeA0, INPUT); dht.begin(); // Initialize ASK Object rf_driver.init(); // Setup Serial Monitor Serial.begin(9600); mySerial.begin(115200); } void loop() { delay(2000); hum = dht.readHumidity(); temp= dht.readTemperature(); Serial.print("Reciever Humidity = "); Serial.print(hum); Serial.print('\n'); Serial.print("Reciever Temperature = "); Serial.println(temp); int analogSensor = analogRead(smokeA0); String smk; // Checks if it has reached the threshold value if (analogSensor > sensorThres) { Serial.print("Smoke at Reciever"); Serial.print('\n'); smk = "Smoke"; } else { Serial.print("Clean at Reciever"); Serial.print('\n'); smk = "Clean"; } // Set buffer to size of expected message uint8_t buf[20]; uint8_t buflen = sizeof(buf); // Check if received packet is correct size if (rf_driver.recv(buf, &buflen)) { str_out = String((char*)buf); for (int i = 0; i < str_out.length(); i++) { if (str_out.substring(i, i+1) == ",") { str_humid = str_out.substring(0, i); str_temp = str_out.substring(i+1, i+6); str_smk = str_out.substring(i+7,i+12 ); break; } } } // Print values to Serial Monitor Serial.print("Humidity: "); Serial.print(str_humid); Serial.print(" - Temperature: "); Serial.println(str_temp); Serial.print(" - Air Quality: "); Serial.println(str_smk); if( hum >= 60 && temp >= 25 ) { Serial.print("Fire Detected at Reciever "); mySerial.println("AT+CMGF=1"); //Sets the GSM Module in Text Mode delay(1000); // Delay of 1000 milli seconds or 1 second mySerial.println("AT+CMGS=\"+918744984131\"\r"); // Replace x with mobile number delay(1000); mySerial.println(" FIRE ALERT !! "); Serial.println('\n'); mySerial.println("Fire at Reciever Node "); Serial.println('\n'); mySerial.println("Temperature : " + String(temp)); Serial.print('\n'); mySerial.println("Humidity : " + String(hum)); Serial.print('\n'); mySerial.println("Air Quality : " + smk); delay(100); mySerial.println((char)26);// ASCII code of CTRL+Z delay(1000); } if( str_humid.toInt() >= 60 && str_temp.toInt() >= 25 ) { Serial.print("Fire Detected at Transmitter "); mySerial.println("AT+CMGF=1"); //Sets the GSM Module in Text Mode delay(1000); mySerial.println("AT+CMGS=\"+918744984131\"\r"); // Replace x with mobile number delay(1000); mySerial.println(" FIRE ALERT !! "); Serial.println('\n'); mySerial.println("Fire at Transmitter Node "); Serial.println('\n'); mySerial.println("Temperature : " + str_temp); Serial.print('\n'); mySerial.println("Humidity : " + str_humid); Serial.print('\n'); mySerial.println("Air Quality : " + String(str_smk)); delay(100); mySerial.println((char)26);// ASCII code of CTRL+Z delay(1000); } } #######( PART-2 )############ Transmitter Side Arduino Code ############ ############################################################################ #include <RH_ASK.h> #include <SPI.h> #include <DHT.h> //Constants #define DHTPIN 2 // what pin we're connected to #define DHTTYPE DHT11 // DHT11 DHT dht(DHTPIN, DHTTYPE); // Initialize DHT sensor for normal 16mhz Arduino int smokeA0 = A5; // Your threshold value int sensorThres = 400; // Define Variables float hum; // Stores humidity value in percent float temp; // Stores temperature value in Celcius float smk; // Define output strings String str_humid; String str_temp; String str_smk; String str_out; // Create Amplitude Shift Keying Object RH_ASK rf_driver; // Initialize DHT sensor for normal 16mhz Arduino void setup() { dht.begin(); pinMode(smokeA0, INPUT); // Initialize ASK Object rf_driver.init(); } void loop() { delay(2000); // Delay so DHT-22 sensor can stabalize hum = dht.readHumidity(); // Get Humidity value temp= dht.readTemperature(); // Get Temperature value // Convert Humidity to string str_humid = String(hum); Serial.print(hum); // Convert Temperature to string str_temp = String(temp); Serial.print(temp); int analogSensor = analogRead(smokeA0); // Checks if it has reached the threshold value if (analogSensor > sensorThres) { str_smk = "1"; } else { str_smk = "0"; } // Combine Humidity and Temperature if(str_smk == "1") { str_out = str_humid + "," + str_temp + "," + "Smoke"; } if(str_smk == "0") { str_out = str_humid + "," + str_temp+ "," + "Clean"; } // Compose output character const char *msg = str_out.c_str(); rf_driver.send((uint8_t *)msg, strlen(msg)); rf_driver.waitPacketSent(); }