SMART SECURITY LOCK SYSTEM FOR A SMART CITY
Akarshan, Rajeev Bhupathiraju, Mithilesh, Jahnavi
Department of Electrical & Computer Engineering, Wayne State University
Advisor: Harpreet Singh
ABSTRACT CONCEPT RESULTS
SCHEMATIC DIAGRAM
TRUTH TABLES
CONCLUSIONS AND FUTURE SCOPE
Initially the system will be in unarmed state.
The password has to set and pound symbol
is to be pressed to lock the system.
Now the system is in locked state.
Once the correct code or password is
entered, the door goes to open state and the
concerned person is allowed to access the
secured area.
If the password entered is wrong, the fail
count increases and the door remains in
closed state.
The alarm buzzes when the fail count
reaches the maximum.
If the password has to be changed, enter the
master key when the door is in open state
and then enter the new password to change.
In alarm state give the password and the
master key to unarm.
PROCEDURE
Security is the degree of resistance to or
protection from harm.
It is an essential aspect especially in case of
home security.
An electronic lock is a device which has an
electronic control assembly attached to it.
They are provided with an access control
system.
This system allows the user to unlock the
device with a password.
The password is entered by making use of a
keypad.
The user can also set a password to ensure
better protection.
This project is developed using FPGA.
LEDs 7 to 2 are used to represent the output
states alarm, locked, armed, fail and open.
The toggle switch SW7 is used as door
signal.
Since row and column signals are to be given
simultaneously we short the row and column
to work on the FPGA board without any extra
equipment.
Row[3] = Col[2], Row[2] = Col[1], Row[0] =
Col[0] are shorted making 1,5,# available.
Row[1] is set to 0.
LED7 is turned on when the alarm buzzes.
LED6 is turned on when the door is in locked
state.
LED5 is turned on when armed.
LED4 is turned on when the password
entered is incorrect i.e. fail state.
LED3 is turned on when the door is opened.
STATE DIAGRAM
State Alarm Locked Armed Fail
000 Unarmed 0 0 0 0
001 Locked 0 1 1 0
010 Open 0 0 1 0
011 Fail 0 1 1 1
100 Alarm 1 1 1 0
R3 R2 R1 R0 Row1 Row2
1 X X X 0 0
0 1 X X 0 1
0 0 1 X 1 0
0 0 0 1 1 1
C2 C1 C0 Col 1 Col 2
1 X X 0 0
0 1 X 0 1
0 0 1 1 0
RTL SCHEMATIC
This password based smart security lock system is
used in places where more security is needed.
This system can be used to secure lockers and doors.
As future scope, we can add fire and LPG sensors so
that in case of emergency the door opens
automatically.
