SMART SECURITY BASED ATM THEFT PROTECTOR
PROJECT REFERENCE NO.: 38S1444
COLLEGE
: C.BYREGOWDA INSTITUTE OF TECHNOLOGY, KOLAR
BRANCH
: ELECTRONICS AND COMMUNICATION ENGINEERING
GUIDE
: MRS.ASHWINI N C
STUDENTS : MR. AKASH R
MS. BHAVANA R
MS. BINDHU K
MR. SUBIN T S
Keywords — ATM-Automated Teller Machine; GSM- global system for
mobiles; IDE- integrated development environment
OBJECTIVES
The work was mostly designed by us through an original idea which is not use elsewhere,
so we use less number of reference paper for our proposed work. This project deals with
protection of ATM from robbery.
•
This system uses Arduino based embedded system to process real time data
collected by the vibration sensor, accelerometer and temperature sensors. Once
the robbery is detected, the Siren will start alerting the public. The door of the
ATM will automatically shut close.
•
Solenoid valve is used to leak the gas (Chloroform) inside the ATM chamber to bring the
thief into unconscious stage once he inhales the dose defined.
•
GSM Modem is used to send message to the nearby police station, corresponding bank
manager and Security Officers. Once the bank officials or Police come, they can disable
the system by entering a password then open the ATM door and catch hold of the Thief.
METHODOLOGY
The basic methodology of the project is when the code is dumped into the board and
powered up,
there are 3 major parameters that are checked continuously, they are:
•
Vibrations: Vibration sensors attached to the ATM machine will trigger when the
robber tries to cut the ATM machine using any of cutting tools such as hacksaw or
any drilling machine. This generates a lot of vibration, more than the average
activates in the ATM booth.
•
Temperature sensor [LM35]: Few of them are placed just behind the cash
withdrawal chamber. There
is a possibility that the robber can use a gas cutter to
cut through the cash chamber rather than using a cutter, then temperature could
easily exceed 400 degree centigrade. The output of sensor is in the form of analog
voltage.
•
Accelerometer [ADXL335]: The displacement of the machine measured by the 3
axis
accelerometer. Finally there is also a chance that he can try and lift the whole
of the ATM machine. Hence once the predefined threshold level is crossed the
microcontroller is trigger indicating the ATM machine is being tried to shift out of
its place.
•
If either of the above three things were to happen there is a trigger to the Arduino,
the door of the ATM is automatically shut down. The chloroform gas is released into
the chamber, It is reported that exposure to chloroform at 920-1,100 ppm for 2-3 min
resulted in dizziness .Hence meanwhile the PPM level of the gas is continuously
measured and monitored. When this level reaches the peak level beyond which it
could be lethal to the person inside, the valve is closed.
•
The next step, the siren goes on, alerting the public. An SMS is sent to the concerned
persons using the GSM module connected to the microcontroller. The SMS could be
sent to police, bank manager and the security guard. We could keep displaying the
PPM level and status of the emergency level.
•
Now there is need of the bank manager or the police to come and open the door and
apprehend the thief. Once the code is accepted, the door is ready to be opened. But
before that there will be gas in the chamber, this can cause effects to the outsider, so
there is as exhaust fan setup at the top of the ATM chamber, this is turned on. Once
the PPM level comes down below certain acceptable level the door opens. Then the
alarm is disabled and the board is reset again.
FLOW CHART
START
VIBRATION
SENSOR TR.
TEMP SENSOR
.
Tr
ACCELEROM‐
‐ETER tr.
CLOSE THE
DOOR
RELEASE GAS
PPM level
> 100
CLOSE THE VALVE
A
A
SIREN
C
B
B
SEND SMS
ENTER
THE
CODE
EXAHUST FAN
ON
DISABLE ALARM
RESET
C
DISPLAY PPM LEVEL &
STATUS
RESULT AND CONCLUSION
The proposed system based on arudino microcontroller is found to be multipurpose. Moreover
the development board used and the software used are Opensource, hence this project provides
an option for future enhancements. It uses GSM technology which is very popular and reliable.
We have provided a way to catch hold of the thief which plays an important role.
FUTURE IMPLEMENTATIONS
One other major trouble for the customers is that they could be assaulted in the chamber for
the cash or the PIN, there are also some reported cases. There is an idea that are planned to be
implemented in our next prototype. Firstly we can try and help the victim if he is inside the
chamber, kept as hostage. We can install a panic button, if pressed by the victim the chamber
gets immediately filled with fog so that the thief can’t see anything. And secondly we can use a
high pitched very irritating sound so that both the parties can’t do anything but cover their ears.
Then we can introduce the chloroform gas and reaper.