Page 264 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

MODULE 16 : CCTV: Closed Circuit Television

LESSON 146 - 154 : CCTV: Closed Circuit Television

Objectives

At the end of this lesson you shall be able to:
• state the benefits of CCTV
• state various types of CCTV.

CCTV stands for Closed Circuit Television. It is also known as video surveillance. It is a system where all the
elements, like video cameras, display monitors, and recording devices, are directly connected. It is used to
monitor a sensitive area (A particular area which needs continuous observation and where there is no one to
watch all the time). It is very helpful to prevent crime because it monitors all the activities and records them. It is
also used for traffic monitoring by detecting congestion and noticing accidents.
CCTV uses wired or wireless transmission to send the signals or broadcasts to the monitor or recording device. It
can transmit video, audio or both. Advanced CCTV cameras also have night vision capabilities to record low-light
images. The CCTV signals are not publicly distributed but are monitored for security purposes.
Places where CCTVs are generally installed:
Banks
Shops and multiplexes
Casinos
City Roads and Highways

Building and Residential Apartments
Corporate Houses
Government Offices and Buildings
Airports and Railway Stations

Industrial plants etc.
The first CCTV was installed at Test Stand VII in Peenemunde in, Germany. It was installed by Siemens AG. The
credit for the technological design and installation of this system goes to German engineer Walter Bruch.

Benefits of CCTV:
CCTV systems are a great deterrent to thieves. Once a thief realizes that he is under the surveillance of CCTV,
he will prefer to go somewhere else.
It reduces the fear of crime.

It facilitates remote monitoring.
It increases business efficiency and improves profitability.
It can be used as the best option for home security.
It also increases the risks for shoplifters.
CCTV footage provides valuable assistance to the police in investigating crimes

Different Types of CCTV Cameras and Specifications:
We are going to take a brief look at a few of those types:
Dome CCTV
Bullet CCTV

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