Design and construction of a 3 way inter-communication system
Table Of Contents
- Title pageCertificationDedicationAcknowledgementAbstractTable of contentsCHAPTER ONE1.0 INTRODUCTIONCHAPTER TWOComplete Circuit Description2.0 Simplified block diagram of thee 3-way intercom system2.1 Operation PrinciplesCHAPTER THREE3.0 ICC1212C3.1 Resistor
- 3.2Capacitor
- 3.3Condenser Microphone3.4 Loudspeakers3.5 Switches3.6 Communication cablesCHAPTER FOURCIRCUITRY DESIGN AND DESCRIPTION
- 4.0Description of Power Supply Unit Circuit4.1 Description of the tone Generator Circuit4.2 Circuit Diagram of the Three Units and Explanation4.3 Explanation of the Switching Circuit CHAPTER FIVECONSTRUCTION AND PACKAGING
- 5.0Component Sourcing5.1 Construction and Testing
- 5.2Audio Amplifying Stage5.3 Prototype5.4 Trouble shooting5.5 Packaging CHAPTER SIX6.0 CONCLUSION6.1 Further study and Design REFERENCEAPPENDIX
Thesis Abstract
An intercommunication system is nothing but the communication between two or more persons not close to one another. This does not mean we should categorize telephones, fax, teleprinters, telegraphs etc. an example of intercom system sine they are used in communication between people. Infact, intercom involves short distance places. It is limited in electronics, offices, and hospitals.
The intercom system under is a three way station type. This means that a person can communicate to the other at another station at his own convenient time. They call once another attention by the use of the tone generated by the use of tone generator.
Depress a button and the tone sounds, and the same switch is thrown to the intercom circuit thus they communicate.
This system to be used in solving the problem of poor communication in our department. Besides, it can be extended to some other offices by the addition this one may use a rotary switch
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