It is hereby declared that this project and thesis entitled “GSM BASED FIRE ALERT & GAS LEAKAGE DETECTOR SYSTEM” has been carried out by the following students under my direct supervision and this work has been carried out by them in the laboratories of the Department of Electrical and Electronic Engineering under the Faculty of Engineering of Daffodil International University, in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering.
ACKNOWLEDGEMENT
ABSTRACT
INTRODUCTION
- Introduction
- OBJECTIVES
- APPLICATION
- PROBLEM STATEMENT
- SCOPE OF PROJECT
- CONCLUSION
- PROJECT OUTLINE
The use of a gas detection system is therefore extremely necessary to enable real-time monitoring of the gas system. This is because this project can detect the presence of both natural gas and fire. In addition, it is also possible to automatically send an SMS alert to the owner and also to the nearest fire station.
The circuit is basically on the gas sensor, the temperature sensor and the programmable integrated circuit (PIC). This project focuses more on the study case and project development based on the gas and temperature sensor. The microcontroller will continuously receive data from both sensors in an analog data packet.
When the reading of the sensors exceeds the set limit, it will automatically send an SMS alert wirelessly using the GSM network to the numbers set on the source code. The methodology includes planning, developing the design and managing the project.
LITERATURE REVIEWS
Introduction
Design / Analysis
LIQUID CRYSTAL DISPLAY
Summary
This involves introducing the GSM based fire alarm and LPG gas leak detector using a microcontroller with SMS alert. The hardware used in the project and writing the information about the specifications of each module has been used to create in a systematic format. Specifies the description of the software tools used in the project, providing a clear picture of the design procedure.
HARDWARE IMPLEMENT
ATMEGA 328P MICROCONTROLLER
- Introduction
- Feature
- Description
- Configuration Summary
- BLOCK DIAGRAM
- Pin Configuration
- Pin Description
Atmel-42735B-328/P_Datasheet_Summary-11/2016 • Peripherals – Two 8-bit timer/counters with separate prescaler and comparison mode – Real-time counter with separate oscillator. One byte-oriented 2-wire serial interface (compatible with Philips I2C) – Programmable watchdog timer with separate on-chip oscillator. The ATmega328/P offers the following features: 32 KB in-system programmable flash with read-while-write capabilities, 1 KB EEPROM, 2 KB SRAM, 23 general-purpose I/O lines, 32 general-purpose working registers, Real Time Counter (RTC), three flexible timer/counters with comparison modes and PWM, 1 serial programmable USARTs, 1 byte-oriented 2-wire serial interface (I2C), a 6-channel 10-bit ADC (8 channels in TQFP and QFN /MLF packages), a programmable Watchdog timer with internal oscillator, an SPI serial port and six software selectable power saving modes.
In power-saving mode, the asynchronous timer continues to run, allowing the user to maintain a timer base while the rest of the device sleeps. The ADC Noise Reduction mode stops the CPU and all I/O modules except the asynchronous timer and ADC to minimize switching noise during ADC conversions. In standby mode, the crystal/resonator oscillator runs while the rest of the device sleeps.
In Extended Standby mode, both the main oscillator and the asynchronous timer continue to run. The On-chip ISP Flash allows the program memory in the system to be reprogrammed via an SPI serial interface, by a conventional non-volatile memory programmer, or by an On-chip Boot program running on the AVR core. The Boot program can use any interface to download the application program into the Application Flash memory.
Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing true read-on-write. As inputs, the pins of gate B, which are externally pulled low, will source current if the pull-up resistors are activated. Gate B pins are in three positions when the reset condition becomes active, even if the clock is not running.
Depending on the fuse settings for the clock selection, PB6 can be used as an input for the inverting oscillator amplifier and as an input for the internal clock control circuit. Depending on the fuse settings for the clock selection, PB7 can be used as the output of the inverting oscillator amplifier. When the internally calibrated RC oscillator is used as the chip clock source, PB[7:6] is used as the TOSC[2:1] input for the asynchronous timer/counter2 if the AS2 bit in ASSR is set.
Port C (PC[5:0])
Port B is an 8-bit bidirectional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have symmetrical drive characteristics with both high sink and source capacity.
PC6/RESET
The various special features of Port C are detailed in the section Alternative functions of Port C.
Port D (PD[7:0])
AVCC
AREF
ADC[7:6] (TQFP and VFQFN Package Only)
- Applications
- Summary
- GSM MODULE A6
- Introduction
- Feature
- Specification
- Pin Description
- Block Diagram
- Application
- Summary
- MQ 2 GAS SENSOR
- Introduction
- Feature
- Specifications
- MQ2gassensor pin description
- VCC (+5V) 2. GND (0V)
- GAS Sensors–Connection
- Standard Working Condition
- SENSITIVECHARACTERISTICS OF MQ -2 GAS SENSOR
- SENSITIVITY ADJUSTMENT
- APPLICATION OF MQ2 GAS SENSOR
- Summary
In light of the popularity of the shared bike system, GSM Data Communication has been reconsidered as the best solution for the outdoor IoT solution. Arduino MQ-2 gas sensor module is used in household and industrial gas leak detection equipment, it is suitable for detecting LPG, i-butane, propane, methane, alcohol, Hydrogen, smoke. The gas sensor senses the analog value according to the concentration of the gas level in the environment.
When measuring accurately, the correct alarm point for the gas detector must be determined after taking the temperature and humidity influence into account. The voltage that the sensor emits changes the smoke/gas level that exists in the atmosphere accordingly. If there is any flammable gas present in the sample, the oxidation of the same gas leads to increased temperature and the resistance of the sensor resistor will decrease.
This sensor detects the concentrations of flammable gas in the air and displays its value as an analog voltage. The MQ-2 gas sensor has high sensitivity for LPG, propane and hydrogen and can also be used for methane and other flammable gas. The sensitive material of the MQ-2 gas sensor is tin dioxide SnO2, which has lower conductivity in clean air.
When the target flammable gas is present, MQ 2 detects that its conductivity is higher and the gas concentration increases. And as you can see, one of the H pins goes to the power and the other one is connected to the. Connecting five volts (AC or DC) to the heater pins (H) keeps the sensor warm enough to function properly.
Applying five volts to pin A or B causes the sensor to output an analog voltage on the other pins. In accurate measurement, the correct alarm point for the gas detector must be determined after taking into account the influence of temperature and humidity. Reliable, simple and cost-effective LPG leak detection system The present mechatronic system designed in a kit is simple compared to other LPG leak detection systems available in the market.
Working on the MQ2 sensor is that this leak detection system is independent of the ambient temperature where the system is installed. The system is cost-effective and can be used in domestic applications Ike kitchens, hotels, cafeterias, hospitals and property patties.
RESULT AND DISCUSSION
Introduction
Result
It was also observed that the sensitivity of the temperature sensor and gas sensor in clean air was very high. The sensitivity of the gas sensor varied with temperature, while the reference voltage remained constant over time.
Advantage of GSM Based Fire Alert Gas leakage Detector
CONCLUSION
Introduction
Advantage
Future Scopes of the Work
The PIC16F1938 will also be integrated into a GSM modem using the MAX232 as a connector. Whenever the sensor reading exceeds the set limit, it will automatically wirelessly send an SMS alert using a GSM modem over the GSM network to the numbers as set on the coding.
Appendix
