LPG GAS DETECTION AND ALERT SYSTEM

TEAM MEMBERSASHISH VERMA A4717009011NITIN SHARMA A4717009013HARSH TANWAR A4717009023

BACKGROUND OF TOPIC

Safely detecting any malfunctioning of a pressurized gas system to prevent accumulation of combustible gases so that damage or explosion due to such an accumulation of gases is prevented

The Gas Sensor Model is designed to enable Gas detection interface to Microcontroller by providing a mobile call and receiving a call .

LPG GAS DETECTOR

INTRODUCTION MQ-5 SENSOR IS USED

High sensitivity to LPG, natural gas, alcohol, smoke.

Tin Dioxide (SnO2) sensitive layer, measuring electrode and heater are fixed.

MQ-5 have 6 pin ,4 of them are used to fetch signals, and other 2 are used for providing heating current.

The circuit operates on a 9V battery.

Voltage Regulator is used to convert 9V into 5V DC to drive the gas sensor module. 

The MQ-5 gas sensor module ,its output goes high when the gas level reaches or exceeds certain point.

Interfacing with the sensor module with microcontroller is done through ADC.

MICROCONTROLLER

ARCHITECTURE-8051

MICROCONTROLLER USED AT89S52

Provides 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, three 16-bit timer/counters.

Powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

Whenever there is LPG concentration of 10-1000 parts per million in the area, the OUT pin of the sensor module goes high.

The reference voltage which set by sensor is converted by ADC in the form of digital signal.

The driver which is connected from the port of microcontroller act as a relay circuit.

LED glows and the alarm sounds to alert the user of gas leakage

 

CIRCUIT DIAGRAM

BLOCK DIAGRAM

Detection of gas using mq-5 sesor

Adc converter(3202 B)

Microcontoller(89S52)

Driver Section

Buzzer

MATERIALS USED

MQ5 GAS SENSOR ADC TRANSISTOR ALARM SPEAKER/BUZZER BATTERY LEDCAPACITOR RESISTORS VOLTAGE REGULATOR RELAY AND WIRES

FUTURE MODIFICATIONS & PROGRESS • Integration of intelligent counter part of

the system which includes control unit that demonstrates the auto cut off function.

• Integration of mobile module that will call the owner/user of the site/house.

• Accreditation from the department of safety and reforms MCD govt. of nct New Delhi.

THANKYOU