LPG GAS BOOKING USING
LOAD CELL&EMERGENCY
ALERT- SMS
There are many methods available for booking a LPG gas in
the gas agency. Methods include Online booking,
Telephone booking etc. But some times we may forget to do
the booking due to various reasons. It will be difficult
situation for the one who uses LPG gas for cooking
regularly. So we have proposed a new system which
automatically books a gas when the gas is about to empty.
Proposed Idea:
In our Project we have used a LOAD CELL to monitor
the weight of the LPG gas regularly. IF the gas level is
below a threshold level, then a SMS Message will be sent to
a gas agency automatically to book a new gas. Then it waits
for the reply from the agency about the status of the
booking. (Booked or not). It is then displayed on the lcd.
In addition to this it also support two new features.
(1). It automatically detects fire and switches an Water
pump to putoff the fire and sends an SMS Message to the
Fire Station.
(2). It also Includes an LPG gas leakage sensor for detecting
gas leakage and produces alarm. It also sends an SMS
Message to the user regarding the gas leakage and fire.
Gas Booking Office:
Block Diagram
Power Supply unit
GSM MODEM
(Gas agency) Computer
Fire Sensor
LPG Gas Sensor
Instrumentaion amplifier
(Signal Conditioning
Circuit) dsPIC 30F4013
Microcontroller
GSM Modem
LCD Display
GAS Booked
MAX 232
DC Motor Water Pump
Relay Driver circuit
Relay12V Power Supply
For Water pump
Processing Ckts
AlarmDriver circuit
Alarm
