The intended system is employed by the user in a application which helps to monitor the gas leaked in air conditioner presented in home and industries.
A. SYSTEM DESIGN
The electrical power is almost exclusively generated, transmitted and distributed in form of AC because of economical consideration but for operation of most of the electronic device and circuits, DC supply required.
No doubt, they have the advantage of being portable and ripple free but their voltages are low, they need frequent replacement and are expensive in comparison to conventional DC power supplies. Nowadays, almost all electronic equipment includes a circuit that converts AC to DC supply. In general at the input of the power supply there is a power transformer. It is followed by rectifier (a diode circuit) smoothing filter and then by a voltage regulator circuit.
B. SYSTEM ARCHITECTURE
The aim of the design is to create a module that develop the system to monitor the gas leakage.
The above-mentioned Fig. 1 shows a block diagram for gas leakage detection system. The gas leakage detection system helps to detect the leakage of gas from air conditioner. This project used Arduino UNO as the Microcontroller where it processes the input from the sensor. If gas leakage is detected, then the system gives alert alarm by using the buzzer sound and sent SMS through GSM module to communicate with the user.
C. SYSTEM CONFIGURATION
The proposed system consists of GSM module and gas sensor which is interfaced with the microcontroller.
The above figure shows the interfacing the Arduino UNO with the GSM module. In the configuration the receiver pin of GSM is connected to the transmitter pin of Arduino and vice versa. It will help to transmit the latitude and longitude value of the chain to the GSM module. GSM modules receive the data and send it to the mobile number which is stored in Arduino.
Connect the power supply pin (VCC) is connected to 5V power supply in Arduino. Connect the Ground pin of gas sensor to the ground of Arduino. Connect the Analog/Digital output pin to the analog or digital pin available in the Arduino.
Gas sensor will reads the input values in ppm, it will send the output values to Arduino.
The above figure shows the pin configuration of gas sensor module. The sensor contains four pins namely power supply pin(VCC), ground pin, analog pin(A0) and digital pin(D0).