1 micro controller
TRANSCRIPT
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MICROCONTROLLER
BASED INDUSTRIAL
SECURITY SYSTEM
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SUBMITTED BY:
Basudeba Mandal 0701289087Alok Mohanty 0701289093
Rakesh Kumar
Sahoo 0701289095 Soumya Ranjan
Pattnaik 0701289097
Amaresh KumarTripathy 0701289104
Satyam Roy 0701289109
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INTRODUCTION
The security system is one of themajor focus areas in the present socialand industrial environment.
To safe guard the industrial area, themost important aspect to beconsidered is the trespassing, fire andflood.
There are various traditional securitysystems that already exists but therecent systems with embedded
systems are more flexible.
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This security system is quite efficient
and can be implemented in industries,offices and homes.
This project deals with six sensors:
Trespassing.
Vibration Detector.
Over temperature detector.
Water Detector.
Over Current.
Over Voltage.
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BLOCK DIAGRAM OF THE
PROJECT
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POWER SUPPLY CIRCUIT
1k
0-12/1A
230V
50Hz
POWER SUPPLY
2.2K
LED
LED
IN 4007 * 41000uF/35V
+5V
7812 +12V
7805
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TRESPASSING
SENSOR This system consists of two sections:
IR Transmitter
IR Receiver
IR LED is a light source which emits asignal in the range of Infrared region.
The receiver in the opposite end
receives the signal and reports violation
in case any hindrance comes inbetween.
IR source is used as it is invisible in
contrast with the laser source.
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Receiver and Transmitter Block
Diagram
PHOTODIODE
10k
VCC=+5V
15k
10K-200K
10k
LED
47k
CONDN.
SIGNAL
IR
DIODE
IR
DIODE
10K
-
+
LM393
3
2
1
8
4
P3.4
150E/2W
VCC=+12V
470E
BC547
IR RECEIVER
BC547
VCC=+12V
IR TRANSMITTER
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VIBRATION DETECTOR
Here for the earthquake or any other vibration dueto any disturbance of the machines, we have takena vibration sensor which is nothing but apiezoelectric sensorwhich detects the vibration
which occurs due to machines. Piezoelectric sensor is nothing but a transducer
which converts mechanical vibration ormechanical stress into an electrical signal and that
signal is very weak, for that we need an amplifierto amplify the weak signal which is done by theinverting amplifier.
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BLOCK DIAGRAM OF
VIBRATION SENSOR
piezo sensor
+
-
LM324
2
3
1
4
11
BC547
VCC
o/p
VCC
68k
LED
1k
100k
1k
Vibration detecting ckt
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OVER TEMPERATURE
DETECTOR In this section our aim is to detect over
temperature, for that we need a temperaturesensor (THERMISTOR) which is a N.T.C typefor sensing the temperature.
Thermister is a transducer which is used toconvert temperature to the correspondingvoltage.
To compare the temperature we need an OP-
AMP which is configured as an voltagecomparator (LM393) which compares the twoinput voltage and gives the correspondingoutput according to the temperature.
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10K
10k
Vcc =+12V
470E
68k
10k
OVER TEMPERATURE DETECTOR
BC547
LM393
1
3
2
8
4
OUT
+
-
V+
V-
15k
Vcc =+12V
1.5k
10K
Vcc =+5V
LED
BC547
10kTHERMISTER
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WATER DETECTOR
In our project, the water level detector itwill indicate the level of the water but atthe same time it will ON/OFF the motor.
Whenever the water level goes abovethe upper level of the tank, the motor willautomatically stops and it will indicatethe level of the water with a audible
sound. Similarly, when ever the water level goes
below the lower level of the tank, themotor will automatically ON and it will
indicate the level of the water.
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BLOCK DIAGRAM OF WATER
LEVEL DETECTOR
BC547
WATER TANK
VCC=+5v
1.5k
10k
OUTPUT
VCC=+5v
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OVER CURRENT
DETECTOR This is a circuit designed to detect
over current with a special type of CT
is used to detect very low current. The
output of this CT is an AC voltageproportional to the load current.
In this CT the primary coil is one turn
and secondary is 200turn. If the loadvaries, the CT output also varies in
accordance with the load current.
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BLOCK DIAGRAM
OVER CURRENT
LED
VCC=+12V
N
15k
BC547
470E
10k
C . T
P
100uF
LM393
1
3
2
8
4
OUT
+
-
Vcc
gnd
10k
SIGNAL COND..(P2.5)
68k
10k
LOAD
VCC=+12V
10k
IN4007
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OVER VOLTAGE SENSOR
In this section our aim is to detect the linevarying voltage.
The DC voltage after the rectifier isapproximately Vm due to the charging of thecapacitor, this capacitor voltage representsthe line voltage.
The time constant of the circuit is defined byC*RL which must be more then five times ofthe time period of the signal.
RC>5T. If the RC value is less the 5T then the sample
voltage fluctuates unnecessarily, if the RCvalue is too high the sampling response
becomes too slow.
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BLOCK DIAGRAM OF OVER
VOLTAGE DETECTOR
15k
68k
BC547
10k
VCC
o/p
VCC
over voltage comparator
LED
from samplingvoltage
330e
-
+
LM393
3
2
1
8
4
R2
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10uF
SYNC.
MOTHER BOARD
FROM SIGNAL COND.
Vcc =+5V
D
A
RST
11.059MHz
B
8.2k
C
AT89C51
9
18
19
29
30
31
1
2
3
4
5
6
7
8
21
22
23
24
25
26
27
28
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
RST
XTAL2
XTAL1
PSEN
ALE/PROG
EA/VPP
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
P3.0/RXD
P3.1/TXD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P3.6/WR
P3.7/RD
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
22pF
22pF
TO LED INDICATOR TO RELAY DRIVER
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FUTURE ASPECTS AND
CONCLUSION This project can be further expanded
to be interfaced to LAN and Internet.This system can be interfaced to theInternet so, that the security aspectcan be observed and warned throughthe internet access.
This project has functioned
satisfactorily in the laboratorycondition and with slight modificationcan be made suitable to work inoutdoor conditions.
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REFERENCES
[1]. White, M. H, Deffoe, L. E. and Furlani, K. M.,Industrial security norms and findings Proc., 4thASCE Specialty Conference and Exposition/Demonstration on Robotics for ChallengingSituations and Environments, pp. 96-103,
Albuquerque, New Mexico, Feb. 27 Mar.2,2000.
[2]. Stewart, D., A Platform with completeindustrial security , Proc. of the Inst. ofElectronics Engineering, Volume 180(15), Part
I:371-386, 1965-1966.[3]. Albus, J. S., Bostelman, R. V., Dagalakis, N. G.,Sensor working and its principles, Journal ofElectronics Systems, July 1992
[4]. Thomas, Y. J., Fithian, J. E., and Deisenroth,
M. P., A report on the Embedded System. (5)1996.
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THANK YOU