bank locker room_rev2
DESCRIPTION
pptTRANSCRIPT
Bank Locker Room Surveillance with help of Integrated Camera
Contents
Goal
Subsist System
Intent System
Block Diagram
Circuit Diagram / Module Description
Software Tools
References through Books
Goal
To implement bank locker room security system through video
surveillance and monitoring produce high security
Subsist System
Mostly uses valley
Low protection system
Monitoring made manually
Security systems are not effective
Intent System
High security system
Counting no of theft enter into the room
Short messaging service
Automatic fire detection
Highly alert for people
Remote monitoring and control
Detecting persons through PIR sensors
Wireless communication
Block diagramControl section
RF Module (TX/RX)
RS232Microcontroller
Section (AT89s51)Level Converter
Power Supply Section
Locker room section
Web CameraWeb Camera
DriversUnit
DriversUnit
Serial communication
Serial communication
PIRSensor
PIRSensor
SerialCommunication
SerialCommunication MicrocontrollerMicrocontroller
SMOKE SENSORSMOKE SENSOR RF TransceiverRF Transceiver
Device 1Device 1
Device 2Device 2
GSM
IR SNSOR
Block definition Consists of control section and locker room section
PIR sensor are used for detecting motion of the object in the locker
room section
Any body enters into secured place then send indication to control
room through wireless
If alarm attached then it produced signal then people understood
something happens on host
Locker room and control room section connected through RF
wireless communication
In control room section, Data are collected from locker section
through web page
Devices are control from locker room places
GSM
Block definition
After the working hours locker room section detecting any
signal immediately send message through manager and also
nearest police station with no of theft entered into the bank.
No of theft count is calculated by IR sensor. In this sensor
activated after the working hours . Theft count is used to alert
the police to come to take the action. if any smoke is
detected send sms through nearest fire station.
Embedded Hardware
Power Supply Unit
Microcontroller (AT89s52)
RF Module
Serial communication
PIR Sensor
Smoke sensor
IR sensor
Web camera
Need of Microcontroller
A microcontroller (also MCU or µC) is a functional
computer system-on-a-chip. It contains a processor
core, memory, and programmable input/output
peripherals.
Microcontrollers include an integrated CPU, memory (a
small amount of RAM, program memory, or both) and
peripherals capable of input and output.
Features
Optimized 8 bit CPU for control applications.
Extensive Boolean processing capabilities.
64K Program Memory address space.
64K Data Memory address space.
128 bytes of onchip Data Memory.
32 Bi-directional and individually addressable I/O lines.
Two 16 bit timer/counters.
Full Duplex UART, On-chip clock oscillator.
6-source / 5-vector interrupt structure with priority levels.
Micro Controller (Circuit Diagram)
VCC
VCC
P0_0P0_1P0_2P0_3P0_4P0_5P0_6P0_7P1_7
P1_6
P1_1P1_0
P1_3P1_2
P1_5P1_4
P3_3
P3_0
P3_4
P3_7
P3_5
P3_2
P3_6
P3_1
P2_4
P2_2
P2_7
P2_1
P2_5
P2_3
P2_6
P2_0
R28K2
C2 1
0u
F
U1
8051
9
1819
20
293031
40
12345678
2122232425262728
1011121314151617
3938373635343332
RST
XTAL2XTAL1
GN
D
PSENALE/PROG
EA/VPP
VC
CP1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7
P2.0/A8P2.1/A9
P2.2/A10P2.3/A11P2.4/A12P2.5/A13P2.6/A14P2.7/A15
P3.0/RXDP3.1/TXDP3.2/INTOP3.3/INT1P3.4/TOP3.5/T1P3.6/WRP3.7/RD
P0.0/AD0P0.1/AD1P0.2/AD2P0.3/AD3P0.4/AD4P0.5/AD5P0.6/AD6P0.7/AD7
X111.0592MHz
C333PF
C433PF
C1
0.1uF
RS
T
Power supply
Power Supply Circuit
V D D
V D D
C 70 . 1 u F
J P 2
2 2 0 V A C
12
- +
D 1
14
32
U 27 8 0 5
1
3
2V I N
GND
V O U T
C 61 0 0 u F
C 54 7 0 u F
R 42 2 0 o h m
D 2
L E D
Power Supply – Circuit Description
The operation of power supply circuits built using filters,
rectifiers, and then voltage regulators. Starting with an AC
voltage, a steady DC voltage is obtained by rectifying the AC
voltage, Then filtering to a DC level, and finally, regulating to
obtain a desired fixed DC voltage. The regulation is usually
obtained from an IC voltage regulator Unit, which takes a DC
voltage and provides a somewhat lower DC voltage, Which
remains the same even if the input DC voltage varies, or the
output Load connected to the DC voltage changes.
PIR sensor
PIR sensors
Passive Infrareds sensors (PIRs) are electronic devices which are
used in some security alarm systems to detect motion of an infrared
emitting source, usually a human body.
The pyroelectric sensor is made of a crystalline material that
generates a surface electric charge when exposed to heat in the
form of infrared radiation.
When the amount of radiation striking the crystal changes, the
amount of charge also changes and can then be measured with a
sensitive FET device built into the sensor.
This radiation (energy) is invisible to the human eye but can be
detected by electronic devices designed for such a purpose
PIR sensor materials
The actual sensor on the chip is made from natural or artificial
pyroelectric materials
usually in the form of a thin film, out of gallium nitride
– gallium nitride (GaN)
– caesium nitrate (CsNO3)
– polyvinyl fluorides
– derivatives of phenylpyrazine
– cobalt phthalocyanine
– Lithium tantalate (LiTaO3) is a crystal exhibiting both
piezoelectric and pyroelectric properties
PIR configuration
Block process
The PIR325 sensor has two sensing elements connected in a
voltage bucking configuration.
This arrangement cancels signals caused by vibration, temperature
changes and sunlight.
A body passing in front of the sensor will activate first one and then
the other element whereas other sources will affect both elements
simultaneously and be cancelled.
The radiation source must pass across the sensor in a horizontal
direction when sensor pins 1 and 2 are on a horizontal plane so that
the elements are sequentially exposed to the IR source.
A focusing device is usually used in front of the sensor
Serial communication
Serial communication
ATMEL microcontroller and write the code to initialize the UART and
use it to send and receive data
Data you need to transmit and it will do the rest.
It transmits data at standard speeds of 9600,19200 bps etc
The advantage of hardware UART is that you just need to write the
data to one of the registers of UART and your done, you are free to
do other things while UART is transmitting the byte.
UART automatically senses the start of transmission of RX line and
then inputs the whole byte and when it has the byte it informs
you(CPU) to read that data from one of its registers
RS232 pins
UART pins
The UART always transmits data on pin P3.1,P1.3/TX
The UART always receives data on pin P3.0,P1.2/RX
The RS-232 standard defines lots of other signals other than
TX and RX used for handshaking.
Voltages
The USART input/output uses 0V for logic 0 and 5V for logic
1.
The RS-232 standard (and the COM port) use +12V for logic
0 and –12V for logic 1.
To convert between these voltages levels we need an
additional integrated circuit (such as Maxim’s MAX232).
MAX232
V D D
R X
TX T2 O U T
R 2 I N
U 1M A X2 3 2
1 38
1 11 0
1345
2
6
1 291 47
1615
R 1 I NR 2 I NT1 I NT2 I N
C +C 1 -C 2 +C 2 -
V+
V -
R 1 O U TR 2 O U TT1 O U TT2 O U T
VC
CG
ND
C 1 1 0 u F
C 41 0 u F
C 31 0 u F
C 21 0 u F
Infrared digital communication
must have line- of-sight
direction dependent
short distances
reflection
can suffer from sunlight and tube light (TL) noise
Emitter/Detector Alignment Good alignment of the emitter and detector is
important for good operation, especially if
the gap is large. This can be done with a
piece of string stretched between and in
line with LED and phototransistor. A length
of dowel or stiff wire could be used to set
the alignment. Another method that can be
used for longer distances is a laser pointer
shone through one of the mounting holes.
The next diagram shows two methods of
aligning the emitter and detector mountings.
For best results the height of the "beam"
should be at coupler height and at an angle
across the tracks.
Relay
A relay is an electrical switch that opens and
closes under the control of another electrical
circuit. In the original form, the switch is operated
by an electromagnet to open or close one or
many sets of contacts.
GSM modem
A GSM modem is a wireless modem that works with a GSM
wireless network.
A wireless modem behaves like a dial-up modem. The main
difference between them is that a dial-up modem sends and
receives data through a fixed telephone line while a wireless
modem sends and receives data through radio waves.
A GSM modem can be an external device or a PC Card /
PCMCIA Card. Typically, an external GSM modem is connected
to a computer through a serial cable or a USB cable.
Like a GSM mobile phone, a GSM modem requires a SIM card
from a wireless carrier in order to operate.
AT COMMANDS
computers use AT commands to control modems. Both
GSM modems and dial-up modems support a common
set of standard AT commands.
GSM modems support an extended set of AT
commands.
Operations
Reading, writing and deleting SMS messages.
Sending SMS messages.
Monitoring the signal strength.
Monitoring the charging status and charge level of the battery.
Reading, writing and searching phone book entries.
GSM phone or modem supports SMS text mode
Check if your GSM phone or modem supports SMS text mode
To check if your modem supports this text mode, you can try the
following command:
AT+CMGF=1 <ENTER>
If the modem responds with "OK" this mode is supported.
RF TRANSMITTER The transmitter output
is up to 8mW at 433.92MHz with a range of approximately few meters
It accepts both linear and digital inputs
It can operate from 1.5 to 12 Volts-DC
It is approximately the size of a standard postage stamp.
HT-12E ENCODER
Features
Operating voltage:2.4V~12V for the HT12E
Low power and high noise immunity
CMOS technology
Minimum transmission word’s of
4 words for the HT12E
Built-in oscillator needs only 5% resistor
Data code has positive polarity
Minimal external components
HT12E: 18-pin DIP/20-pin SOP package
DESCRIPTION
• The 2^12 encoders are a series of CMOS LSIs for remote control system applications.
• They are capable of encoding information which consists of N address bits and 12N data bits.
• Each address/data input can be set to one of the two
logic states. • The programmed addresses/data are
transmitted together with the header bits via an RF transmission medium .
• Transmission is enabled by applying a low signal to the TE pin.
RF RECEIVER It also operates at
433.92MHz, and has a
sensitivity of 3uV.
It operates from 4.5 to
5.5 volts-DC,
It has both linear and
digital outputs.
HT12D DECODER Operating voltage: 2.4V~12V Low power and high noise immunity CMOS technology Low standby current Capable of decoding 12 bits of information Binary address setting Received codes are checked 3 times Address/Data number combination - HT12D: 8 address bits and 4 data bits Built-in oscillator needs only 5% resistor Valid transmission indicator Easy interface with an RF transmission medium Minimal external components Pair with Holtek's 212 series of encoders 18-pin DIP, 20-pin SOP package
DESCRIPTION 2^12 decoders are a series of CMOS LSIs for
remote control system applications.. The decoders receive serial addresses and
data from a programmed 2^12 series of encoders that are transmitted by a carrier using an RF transmission medium.
They compare the serial input data three times continuously with their local addresses.
If no error or unmatched codes are found, the input data codes are decoded and then transferred to the output pins.
The VT pin also goes high to indicate a valid transmission.
The 2^12 series of decoders are capable of decoding information's that consist of N bits of address and 12-N bits of data.
Embedded software
Keil IDE
Flash Programmer
Proteus simulation
Embedded c
Start
Initialize I/O Ports
Waiting for get signal from PIR Sensor
If get valid signal?
Data will be transmitted waiting for get signal from Control room
If get valid signal ?
Device will be activate and Direction control for web camera
Locker room Section
Start
Initialize I/O ports
Waiting for get signal from locker room section
If get valid
signal?
Alert Module activate and waiting get signal from PC
If get valid
signal?
Data will be transmitted
Control Room Section
Keil software
Flash Programmer
Design Tools
OrCAD Design
OrCAD Design
Advantages
Manual operation eliminated
Secured data transmission
Applications
Military
Security
Commercial
Industrial
Conclusion
This system is suitable for high security areas like banks ,
defense, commercial and produce high alert to people
References
A. Hampapur, L. Brown, J. Connell, , A. Ekin, N. Hass,M. Lu,
H. Merkl, S. Pankanti, A. Senior, C.-F. Shu, and Y. L.Tian.
Smart video surveillance. IEEE Signal Processin Magazine,
pages 38–51, March 2005
T. B. Moeslund and E. Granum. A survey of computervision-
based human motion capture. Computer Vision and Image
Understanding
D. Gavrila. InECCV ’00: Proceedings of the 6th European
Conference on Computer Vision-Part II, pages 37–49,
London, UK, 2000. Springer-Verlag.