Remote Intercom Access

I. INTRODUCTION

Modern networking technologies are dramatically making major contributions to our Information Technology industry. Remote systems are acknowledged as a standout amongst the most climbing innovations in today's reality. The cheapest known stand-alone device used for communication is Intercom. Nearly all of your workplaces in addition to houses contain these kinds of convenient products. These plans are mounted for safety purposes so authenticated person easily identified. Nevertheless, very much development is necessary inside these types of technologies along with devices. Most of the exploration, pattern along with setup has been in procedure to the simulation from the automation devices.

In any communication technology, mobile devices are very common these days and their network is based on special method and systems. In Remote Intercom Access,

1.1 Project Objective

Objectives of the project are given below:

• To design a scheme for automatic door intercom system.

• Lastly, to make the life more comfortable with safety, quality, reliability, and strength.

1.2 Design Challenges

Layout regarding a really process involves the overall performance regarding other functions.

Design of such a system requires the performance of following tasks concurrently.

• The circuit really should have a new centralized command model which can admittance just about all remote nodes which enable it by using DTMF decoding.

• In an ideal system the separation between speakers and microphones should be maximized to optimize the performance.

• It should possess some kind of intelligence built from it..

• It should generate alerts in the critical application or real time operations.

 Examples: Monitoring of lar...

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...hone number fed into it as shown in Figure 14.

Communication can be done using the microphone and speaker and after communicating, if the owner presses 1 on the keypad, the decoder decodes the tone into a 4 bit number and main controller will unlock the door as shown in Figure 15.

If button 2 is pressed on the keypad, hook off circuit will be activated to disconnect the call as shown in Figure 16. Then the microcontrollers need to be reset by changing logic at their RST pins, to make them ready for next turn.

If button 2 is pressed on the keypad, hook off circuit will be activated to disconnect the call as shown in Figure 16.

Some of the important features for development and designing of this system are mentioned in this thesis to make the “remote intercom access” to be able to work in the desired/specific environment.