Security

system Daffodil International University, Dhaka,BD

1.TANHA TASNIM (151-15-5420)2.MOHAMMAD SHAKIRUL ISLAM(151-15-311)3.FERDOUSE AHMED FOYSAL(151-15-5274)4.SHAHARIAR RABBY(151-15-5424)

GROUP MEMBERS

Security system is literally a means or method by which something is secured through a system of interworking components and devices.

What is a security system ???

Project

Laser security system

Magnetic switch

Laser security system:The Principles of Laser Security Systems:

There are three essential components to a laser security system:

A laserA detector A sensing electronics

Magnetic switchA magnetic switch is just like a light switch: it turns a circuit on or off depending on what position the arm of the switch is in. The only difference is that a magnetic switch is operated by a magnet, rather than your fingers.

Advantages

Reasonable price

AC + DC power system with 3 days backup laser SystemAnd 3 month backup for Magnetic Security System.

Easy to configure

Available

L A S E R

S E C U R I T Y

S Y S T E M

APERTUREFor circuit:

1. Vero board2. Wire3. Laser diode 5v4. Light dependent resistor(LDR)5. bc547 (SCR) thyristor6. 6.8kΩ resistor7. 100Ω resistor8 16v 1μf electrolytic capacitor9. 5v buzzer8. Led10. 5v power supply

VERO BOARD

APERTURE

Light dependent resistor(LDR)Laser diode 5v

APERTURE

bc547 (SCR) thyristor

6.8kΩ resistor

APERTURE

5v buzzer

5v Power Supply

APERTURE

Magnetic Security System

For circuit:

1. Any nPn Thyroid2. 1ohm Resistor3. Buzzer4. Magnet Reed Switch5.Magnet6. Battery

APERTURE

nPn Thyroid

100Ω resistor

MAGNATIC REED SWTITCH

MAGNET

APERTURE

5v buzzer

5v Power Supply

APERTURE

Tools: 1.Soldering iron2.Solder wire3.Solder welding flux4.Scissors 5.Safety goggles

APERTURE

Circuit

Drowing59%

Suicide8%

Animal Bite9%

Road Or Traffic Accdent12%

Other11%

Child Death in Bangladesh by Injury Type

Drowing Suicide Animal Bite Road Or Traffic Accdent Other

Magnetic Security System