Economic Security System

Security is gaining awareness and importance in recent years. And the access control system form a vital link in the security chain at present there are many security system available in the market but the paper proposed here is an economical electronic system. The consumption of low operating power, flexible and user friendly mechanical designs are the merits of this project the paper presents the technology of authorized access system by using 89c51 microcontroller and it has an added advantage of having more than one passwords for entering into the building.

Security includes several areas such as personal security, organizational security and among others. Security access control is an important aspect of any system.it is act of ensuring that an authenticated user accesses only what they are authorized to and no more. Nearly all application that deal with financial, privacy, or defence include some form of access control .Access control is concerned with determining the allowed activities of legitimate uses mediating every attempt by a user to access a resource in the system.

Nowadays, locks and key are not enough to keep an environment secure against unwanted or uncontrolled visitors. To have access mechanical security system are widely used such system purely mechanical can be easily defrauded. This paper presents an access control system that uses keypad technology.

These functionalities of the design are being able to:

• Give the facility multiple access system an administrator and 5 users. (user s number can be extended depending on the size of the used EEPROM).

• The user is able to access only the system

• Visualized all functionalities provided using LCD

CIRCUIT DIAGRAM

Th...

... middle of paper ...

...conomical room access system using microcontroller. It is low cost, low in power consumption, compact in size and standalone system. The microcontroller compares the passwords entered by keypad. If these passwords are correct the microcontroller provides necessary control signals to open the door otherwise the door remains closed. Alarm will turn on whenever door is forced to open.

REFERENCES:

1. Inderpreet kaur, “Microcontroller based Home Automation system with security”, IJACSA, vol 1, No.6, Dec 2010

2. Sadedue reza khan,” Development of Low cost private office access control system (OACS)”, IJESA, vol 2, No.2, June 2012

3. “Home automation costs” totalavcontrol.co.uk.retrived 2010-0 2-18

4. LCD module 16*2 21 january 2012 ,(online) available:http//www.LCD module .de/eng/pdf/doma/dip204-4e.pdf

5. Bart Huyskens,” an introduction to microcontroller programming”