home & office security system aaa
TRANSCRIPT
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Under
the supervision of
Mr. Avanish Kumar Singh
(Lecturer, ECE Deptt.)
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What is security system?
Existing system.
Statistics.
Component of security system.
Why we use security system.
Proposed system.
Component of proposed system.
Block diagram.
Working procedure of system.
Architecture of our system.
Develop tool .
At89c51 Controller
Max 232
Description of max 232
Power supply Transformer
Rectifier
Smoothing circuit
Regulator
working of home office security system.
Application and scope
Limitation
Future aspects.
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Security is the condition of being protected
against danger or loss. In the general sense,
security is a concept similar to safety.
The word "security" in general usage is
synonymous with "safety," but as a technical
term "security" means that something not only
is secure but that it has been secured.
Security is a growing concern for many today.
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Homes without security systems are about 3 times more likely to be broken into than homes with security systems – Source: FBI
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A Sensory system.
A data acquisition system.
A data processing and archiving system.
A monitoring system.
An alert messaging system.
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Peace of Mind
No worries while you’re away
Concern for the safety and well-being of their
appliances, things, locations etc.
Deterrent to robbery and home invasion
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Much system failed to be an efficient monitoring
system. They may fail to give service at any
instance. The efficiency was poor.
Many products in market are expensive and
complicated and require the system to be linked
to a public emergency system.
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In our system a microcontroller will monitor all
the sensors for any type of Intrusion.
Microcontroller will send these values to the
PC.
PC will correspondingly shade the graphical
region where the intrusion is detected.
An alert message will be shown on the Screen
in red color.
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The System
Hardware
Software
Max232 IR
Sensor
Microcont
roller Power
Embedded C Visual Basic
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Sensors
Microcontroller
MAX 232
Personal Computer
Security Personal
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Software:
Keil
Visual Basic 6
Hardware:
ICs: MAX232.
Microcontroller- AT89C51.
Power Supply.
Switches, Sensors.
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The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash PEROM.
The Atmel AT89C51 is a powerful microcomputer, provides a highly-flexible and cost-effective solution to many embedded control applications.
The Power-down Mode saves the RAM contents .
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The MAX232 device is a
dual driver/receiver that
includes a capacitive
voltage generator to supply EIA-232 voltage levels from
a single 5-V supply.
Each receiver converts EIA-232 inputs to 5-V
TTL/CMOS levels.
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TRANSFORMER
RECTIFIER
SMOOTHING CIRCUITRY
REGULATOR
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Transformer convert AC
electricity from one voltage
to another with little loss
of power.
step-down transformers
reduce voltage from 220v
to 20v.
Turns ratio=Vp/Vs =Np/Ns.
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A bridge rectifier can be made
using four individual diodes.
It is called a full-wave rectifier
because it uses all the AC wave
(both positive and negative
sections).
1.4V is used up in the bridge
rectifier because each diode
uses 0.7V when conducting
and there are always two
diodes conducting.
d
1
DD1
D3
D4
D2
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Smoothing is performed
by a large value
electrolytic capacitor.
They connected across
the DC supply to act as
a reservoir, supplying
current to the output
when the varying DC
voltage from the rectifier
is falling.
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Voltage regulator ICs
are available with
fixed (typically 5, 12
and 15V) or variable
output voltages.
It provide a fixed
regulated supply
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The "Visual" part refers to the method used to
create the graphical user interface (GUI) & the
"Basic" part refers to the BASIC (Beginners All-
Purpose Symbolic Instruction Code) language.
Visual Basic (VB) is an event driven programming
language.
It enables rapid application development of graphical
user interface (GUI) applications, access to databases.
The advantage of using VB over other programming
languages is its user friendly programming.
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Book Self
Door-2
Locker
Almirah
Door1
Main Gate
Door-1
Locker
Almirah
Door-2
Book Self
Main Gate
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Door-1
Locker
Almirah
Door-2
Book Self
Main Gate
Interrupt
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Book Self
Door-2
Locker
Almirah
Main Gate
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Home security
Office security
Shop security
Lab security and many more
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Wired connection between the hardware
and the PC
Ranges of IR sensors.
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Connection between the hardware and the
pc.
The values of the sensors can be
transferred to the pc by any wireless means.
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Microprocessor Architecture, programming and
applications (Gaonkar),
The 8051 Microcontroller (Ayala),
The 8051 Microcontroller and Embedded
Systems (Mazidi),
Op-Amps and linear integrated circuits
(Gayakwad),
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www.beyondlogic.org
www.electronicsforu.com
www.alldatasheets.com
www.elecktor.com
www.keil.com
www.8051projects.com
www.discovercircuits.com
www.microcontroller.com
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33 Smart Dust By: Rajeshwar Singh & Shahul Sarraf