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FUEL SAVER
SYSTEM
By:
Vaishali M. (2bv08cs112)Vinay N. (2bv08cs118)
Vinaya G.S. (2bv08cs119)
Vinayak K. (2bv08cs121)
2/4/2012
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INTRODUCTION
The fuel consumption is increasing
enormously day-by-day, due to which the fuel
reserves are becoming scarce. In order to serve forthis cause we are designing an efficient fuel saver
system, which prevents unnecessary wastage of
fuel by switching OFF the vehicle engines while
they are waiting for the traffic signal to turn
green.
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RF receiver located in a vehicle receives the lane id
transmitted by lane transmitter and stores it as its
identity. Then it receives an OFF/ON signal from the
signal transmitter, depending on whether signal is
RED/GREEN and accordingly vehicle engine gets
OFF/ON.
SIGNAL
TRANSMITTER LANE
TRANSMITTER
LANE
ID
LANE ID
(DIFFERENT)
LANE ID
(MATCHING)
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PROBLEM STATEMENT
The design of an efficient fuel
saver system to automatically switch
off the vehicle engine, when a vehicle
has to wait for traffic signal to turn
Green.
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FEATURES
} Stops the vehicle engine if vehicle has to waitfor signal to turn GREEN.
} Start of engines when traffic signal is GREEN.
} System is fully automatic.
} Vehicle driver need not to have any knowledgeabout this new system when installed in thevehicle, as it is fully automatic.
} Lessens number of accidents.
} Helps in better implementation of traffic rules.
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SCOPE OFPROJECT
PRESENT SCOPE
} The Project has a wider scope, it can be used in
almost all places where there is a trafficsignal.
} System can work in the places where thetemperature ranges between -55oC to
125oC.
} System is a fully automated system (no any userinterfaces) hence anybody who owns a vehiclecan use it without the requirement of any knowledge about it.
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FUTURESCOPE
} Semi-Automated Drive system A drive system thatwould automatically take care of few parametersof the Vehicle (Speed limit, no parking zones etc.)
} To regulate fuel usage in all kinds of engines. Thissystem could be fit into vehicle running on non-
conventional fuels (hydrogen fuel, solarpowered etc.).
} Regulate vehicles to run at optimum speed: Systemwould assist the driver to drive at an optimumspeed.
} Drive assist in hilly sections Due to narrow roads,only one vehicle would be capable of negotiation aturn at once.
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REQUIREMENTS
ANALYSIS & SPECIFICATION
FUNCTIONALREQUIREMENTS.
} A lane transmitter has to transmit the lane idcontinuously.
} The receiver in the vehicle has to receive the laneid and store it as its lane identity.
} A signal transmitter has to send the lane id [ONsignal] of the lane which has a green signal for 30seconds [Timing may vary at different places].
} If the lane id transmitted by the signaltransmitter does not match with lane identitystored in vehicle , then vehicle engine should stop.
} The vehicle's receiver should receive ON signaland start the engine automatically.
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NON FUNCTIONAL REQUIREMENTS
} For the system to work properly, temperature
need to be in between -55oC to 125oC.
} There should not be any signal transmission at
same frequency and same Baud rate in whichsystem is communicating.
} All the transmissions should take place less than
1 second, 98% of times.
} All transmissions should be correct 99% of times.
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HARDWARE &
SOFTWARE REQUIREMENTS
HARDWAREREQUIREMENTS.
} 89s5x trainer kit.
} 8051Micro-controller IC
} BCDDisplay} ConnectingCables
} RF Receiver.
} RF Transmitter.
} Antenna.
} Battery/Power source.
SOFTWAREREQUIREMENTS.
} Kiel tool.
} SPG burner.
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reception
USECASE 1: Register the vehicle with lane number.
PRIMARYACTOR: - Lane transmitter.
PRECONDITION: - There must be a workingRF receiver fixed in the
vehicle.
POSTCONDITION: - Lane number must be stored in the vehicle
receiver.
MAIN SUCCESSSCENARIO: -
Begins when vehicle enters the lane
Lane transmitter continuously broadcasts the lane number
On reaching the broadcast range, vehicle receives the lane
number
Lane number is stored in the receiver
USECASEDIAGRAM: -
USE CASE DIAGRAMS
LANE TRANSMITTER VEHICLERECEIVER
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USECASE 2: To start or stop the vehicle engine.
ACTOR: - Signal transmitter and receiver.
PRIMARYACTOR: - Vehicle receiver.PRECONDITION: - There must be a lane number stored in the
vehicle receiver.
POSTCONDITION: - Vehicle should stop or start.
MAIN SUCCESSSCENARIO: -
Signal transmitter continuously broadcasts the lane id.
On reaching broadcast range, vehicle receives the lane id.
Lane number and lane id are matched, if match foundvehicle starts else stops.
USECASEDIAGRAM: -
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BLOCK DIAGRAMLane
Microcontroller
LaneTransmitter
VehicleReceiver
Vehicle
Microcontroller
Lane Id
Signal
Send Lane id
Store Lane id
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Signal
Microcontroller
Signal
Transmitter
VehicleReceiver
Vehicle
Microcontroller
Lane Id
Signal
Send Lane
id
Match Lane
id
Engine OFF EngineSTART
Lane Id
different
Lane Id
matching
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MODULE LEVEL
EXP
LANATIONALGORITHMFOR LANE TRANSMITTER.
} Checks if within the time limits, if within time limitsgo to step 2 else go to step 3.
} The lane transmitter transmits the lane number,
go to step 1.
} Stop transmission.
} END
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ALGORITM FORSIGNAL TRANSMITTER
} Checks if within the time limits, if yes go to step
2 else go to step 5.
} Transmits the lane id.
}Waits for signal time (amount of time during
which the signal indicates red/green).
} Calculate next lane id, go to step 1.
} Stop transmission.
} END
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ALGORITHM FOR VEHICLERECEIVER.
} Receive lane number while passing through a lane.
} Store the lane number.
} Receive the lane id transmitted by signaltransmitter.
} Compares lane id with lane number, if it matchesgo to step 5 else go to step 6.
} Vehicle moves. Go to step 7.
} Vehicle waits until lane number match with laneid, go to step 3.
} END
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TESTINGTest id Input description Expected output Actual output
1 LANE TRANSMITTER has to send the lane
number.
A testing receiver has to receive
the lane number sent by lane
transmitter.
Receiver received the lane
number sent.
2 SIGNAL TRANSMITTER has to send the lane
id of the lane having green signal.
A testing receiver has to receive
the lane id sent by signal
transmitter.
Receiver received the lane id
sent.
3 Receiver in the vehicle should receive the
signal transmitted by lane transmitter and
store.
The BCD display should show the
transmitted number stored in
receiver.
Receiver successfully receives
and stores the number
received.
4 LANE TRANSMITTER sends the lane id
matching with the lane number stored in
receiver being tested.
The vehicle engine should start. Engine started.
5 LANE TRANSMITTER sends the lane number
other than the lane number stored in
receiver being tested.
The vehicle engine should turn OFF. Engine turns off.
6 While the vehicle starts after the lane id
and lane number match, it shouldnt stop
receiving any other lane id.
The vehicle should stop reception. The vehicles stopped receiving.
7 Signal transmitter transmits the next lane id. The vehicle started after match
should successfully move out of the
signal.
Vehicles moves out of that
signal.
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CONCLUSIONThough the initial setting up charges do apply, but
the system is cheaper with a complete module
(transmitter or the receiver) not costing more than
Rs600 which is not a huge amount. The long term
benefits are very high. The system is highly reliable and
dont need much of maintenance.
FUTURE WORKThe system can be enhanced to include following
more features.
1. If a vehicle arrives at the signal when itsaround 20s to turn to green signal, the vehicle engineis not stopped.
2. speed controller module can be incorporatedin this system.
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THANK YOU
