Anti Theft Laptop

8/11/2019 Anti Theft Laptop

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PREPARED BY:

1. MAYUR GHARAT

2. NITIN GUPTA

3. AAKASH GUPTA4. RAJENDRA JADHAV

5. MITSH JAISWAL

6. SACHIN KADAM


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Abstract:

As the project title is ANTI-THEFT LAPTOPINDICATOR itself suggest that the project is used tocatch the thieves from stealing our laptop or any otherpersonal belongings. In previous days there is nodevice, which can prevent your laptop from thieves ifyou are far away from it, except that CCTV. But this isvery costly and non a portable device. To overcomethis problem we have chosen this project. We have acompact and portable device, which is cheaper thanany other device and easy to use.


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Introduction:

Despite the slump in the overall PC market, growth inlaptop computers continues.

As it is handy and portable, it is increasingly acquiring themarket of desktop computers among both business and

consumer buyers.As laptops proliferate, laptop theft has become an ever

more critical security issue.

Safeware Inc., the largest U.S. insurer of laptops, projected

that 387,000 laptop computers were stolen in the U.S. in2000, up 21% from 1999.

As theft rates increase, an integrated solution is needed.


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The Laptop Security Problem:

For five consecutive years, CSI has reported the types of security

attack and misuses experienced by its respondents.Laptop theft has been consistently reported by about 60%, as

shown below:

1997

1998

1999

2000

2001

0

10

20

30

40

50

60

70

80

90

100

1

58

62

65 60

62

laptopth

eftcases(%)

year

1997

1998

1999

2000

2001


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Approaches to Laptop Security:

Within the much broader arena of IT security, there are five

classes of technology that are relevant to laptops becausethey protect against the risks described above.

SR.NO. TECNOLOGY PURPOSE

1. User authentication Confirm the authorized user;prevent unauthorized access

2. Physical locking devices Deter theft

3. Encryption Protect data

4. Monitoring and tracingsoftware

Locate and assist in recovery ofstolen computers

5. Alarms Deter theft


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Block diagram of smart laptop

docking station:

POWERSUPPLY

RECTIFIERCIRCUIT

REFLECTING

SENSOR

IC(CNY70)

OSCILLATORIC (CD 4060)

SPEAKER &LED

CIRCUITRY

TRANSISTORAS AN

AMPLIFIER


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Circuit diagram of smart laptop

docking station:


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Pin diagram of IC CNY70:


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Features of IC CNY70:Forward voltage (VF )=1.25 t0 1.6 V.

Reverse voltage (VR)= 5 V.

Junction temperature (Tj)= 100 C.Total power dissipation (Ptot)= 200 mW.

Collector current = 50 mA.


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Pin Diagram of IC CD4060:


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Features of IC CD4060:Wide supply voltage range 1.0V to 15V.

High noise immunity 0.45 VDD (typ.).

Low power TTL compatibility Fan out of 2 driving74L or 1 driving 74LS.

Medium speed operation 8 MHz typ. at VDD e 10V.

Schmitt trigger clock input.


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Block Diagram of Anti-bag

snatching alarm:PLUG &SOCKET

CIRCUITRYCOMPARATOR

MONOSTABLEMV

IC555

SPEAKER &LED

CIRCUITRYPOWERSUPPLY

BAGCONTAINI

NG LAP

TOP


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Circuit Diagram of Anti-bag

snatching alarm:


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Pin diagram of IC CA3140:


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Feature of IC CA3140:Very High Input Impedance (ZIN) -1.5T (Typ).

Very Low Input Current (Il) -10pA (Typ) at -15 to 15 V.

Directly Replaces Industry Type 741 in Most

Applications.

DC input voltage between -0.5V to 8 V.

Operating temperature -55oC to 125oC.


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Ground (0V)

Voltage below 1/3 Vcc totrigger the pulse

Pulsating output

Active low; interrupts thetiming interval at Output Provides access to the

internal voltagedivider; default 2/3 Vcc

The pulse ends when thevoltage is greater thanControl

Open collector output;to discharge thecapacitor

Supply voltage; 5V (4.5V- 16 V)


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Features of IC 555Turn-off time less than 2msMax. operating frequency greater than 500kHz

Timing from microseconds to hoursOperates in both astable and monostable modesHigh output currentAdjustable duty cycle

TTL compatibleTemperature stability of 0.005% per C


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Pin diagram of IC UM3561:


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Features of IC UM3561:DC Supply Voltage -0.3V to +5.0V.

Input Voltage Range Vss-0.3V to Vdd+0.3V

Operating Ambient Temperature -10C to +60C.

Storage Temperature -55C to +125C.


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ADVANTAGES:

User Handy.

Cheaper device.

Easy to design and manufacture as all thecomponents are easily available.

Easily implemented.


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DISADVANTAGES:

Battery dependent.

Data security is not possible.

User authentication is not required.


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APPLICATIONS:

Securing laptops from thefts.

Alarm system.

We can use with any other belongings.


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FUTURE SCOPE:

Adding multimedia capabilities to capture images andstore it.

Using GSM\GPRS modem we can actually find thelocations and SMS it to the users cell phone.


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COCLUSION:

This project aims to developing a device which isreliable and advance for anti-theft purpose. This is moresuitable than any other device for anti thefting purpose.

Thus, the project aims at providing additional

security and reducing risk of theft of our pricy devices.


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BIBLIOGRAPHY

Websites :

http://www.electronicsforu.com http://www.alldatasheet.com http://www.fairchildsemi.com http://books.google.co.in/

Books :

Applied Electronics R.S. Sedha Op-Amps and Linear Integrated CircuitsRamakant A.

Gayakwad
http://www.electronicsforu.com/http://www.alldatasheet.com/http://www.fairchildsemi.com/http://books.google.co.in/http://books.google.co.in/http://www.fairchildsemi.com/http://www.alldatasheet.com/http://www.electronicsforu.com/


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Documents

Anti Theft Laptop