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IOT BASED AUTONOMOUS FIRE EXTINGUISHER, TEMPERATURE AND AQI MONITORING SYSTEM FOR COMMERCIAL BUILDINGS.

19PA1A0231 - G. Sai Anirudh

20PA5A0206 – J. Uma Gayathri

19PA1A0237 - G. Prem Pavan

19PA1A0213 - B. Divya Manikanta

19PA1A0224 - D. Veneela

Under guidance of

Mrs. I. V. V. Vijetha, M. Tech(PhD)

Assistant Professor, EEE Dept.

VISHNU INSTITUTE OF TECHNOLOGY (AUTONOMOUS)

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

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ABSTRACT:

In multi- storey buildings and commercial spaces fire safety is very important and requires high end fire extinguisher systems to act immediately. And also monitoring of temperature and air quality is also important based on which ventilation and air purifiers need to be acted.

In this project we have designed a IoT based autonomous system which monitor the values of temperature, air quality and gas parameters. If temperature exceeds more than preset value, it identifies as fire accident and actuates the fire extinguishers immediately. And also all this sensor values can be sent continuously to website designed and can be seen in control room or remote location.

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Softwares Used

  • Arduino IDE
  • HTML
  • CSS
  • React JS
  • Node JS

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Components Used

  • ESP32
  • DHT11 Sensor
  • MQ2 Sensor
  • LCD Display

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  • NODEMCU

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  • ESP32 is a series of low-cost, low-power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth.
  • DHT11 SENSOR

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  • The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor.

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  • It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed).

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  • It's fairly simple to use but requires careful timing to grab data.

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  • The MQ-2 is a smoke and combustible gas sensor. It can detect flammable gas in a range of 300 - 10000ppm.

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  • It's most common use is domestic gas leakage alarms and detectors with a high sensitivity to propane and smoke.

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  • The sensing material is SNO₂ for which the conductivity is lower in clean environments and higher when smoke or flammable gas is present.

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  • A simple circuit makes measuring this change in conductivity and turning it into data fairly straight-forward, but does require some calibration.
  • MQ2 Sensor

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BLOCK DIAGRAM

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NODE MCU

(ESP32)

TEMPERATURE SENSOR (DHT11)

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LCD DISPLAY

MQ2 SENSOR

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HARDWARE KIT

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WEBSITE

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READINGS

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THANK YOU