WIRELESS CCTV TV

PROJECT ON

SUMMITED BY:-•GARGEE DEWANGAN•PRAGYA SINGH HIRWANI•MONIKA SAO •SURBHI SAHU•NAMRATA MAHLA

Introduction Wireless closed-circuit television

(CCTV) security cameras are that transmit a video and audio signal to a wireless receiver through a radio band.

Wireless cameras are proving very popular among modern security consumers due to their low installation costs and flexible mounting options.

wireless security camera allows users to leverage broadband wireless internet to provide seamless video streaming over-internet.

What is CCTV Closed circuit television(CCTV)

system is the use of video cameras to transmit a signal to a specific , limited set of monitors.

It differs from broadcast television in that the signal is not openly transmitted , though it may employ point to point wireless links.

CCTV is often used for surveillance in areas which need security , such as banks, casinos and airports or military installation

CCTV cameras history

1942-first CCTV surveillance system installed by German engineer Walter Brush. 1956-first VCR produced by Ampex corporation team lead by Charles Ginsburg. 1960-First digital camera signals used in cameras

over analog by NASA. 1972-First VCR for home use produced by Philips. 1996-First IP camera was released by Axis communication. 1998-First consumer digital video recorder s(DVR) released to the public.

Types of CCTV CamerasFixed These cameras provide constant coverage of a specific area.

PTZ Pan, tilt and zoom (PTZ) cameras cover more ground than

fixed cameras and are quite flexible in their coverage. IR Day/Night Day/night CCTV cameras produce images in lowlight and even complete darkness.

Indoor Indoor CCTV cameras are ideal for residential, retail and office

use. Outdoor Outdoor CCTV cameras are encased in weatherproof housing

to protect components from wind, moisture, dust and other hazards.

Basic Components of a CCTV System

CCTV systems are composed of a variety of components for viewing, recording, and archiving video footage that offer a wide range of surveillance benefits.

Cameras Monitors Coaxial Cable Digital Video Recorders (DVRs)

Types of CCTV System

Wired CCTV system- It connects the camera to the recording device

and monitor with the help of coaxial cables or fiber optic cables The signal transmitted over these cables is then fed to the monitor.

Wireless CCTV system- In this system a radio transmitter is attached to

the camera. A radio receiver is then attached to the input on the monitor system.

specification Sensor type: Color Sharp CCD Channel selection: 4 Transmission frequency: 2.4GHz Video connections: Wireless Operating temperature: -10°C- +50°C Minimum illumination-1.5 lux Minimum Cost- Rs. 3500

Transmitter specification Transmission range: 100m (clear line of sight) Power supply: DC 12V Transmission power-10mW Weight: 350g

Receiver specifications:

Operating power: DC 8V Weight: 200g

Types of wireless CCTV Analog wireless- Analog wireless is found in three frequencies: 900 MHz,2.4 GHz,

and 5.8 GHz. Currently, the majority of wireless security cameras operate on

the 2.4 GHz frequency. Most household routers, cordless phones, video game

controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with wireless security camera

Digital wireless cameras- Digital wireless is the transmission of audio and video analog

signals encoded as digital packets over high-bandwidth radio frequencies.

Wide transmission range—usually close to 450 feet . Digital signal means you can transmit commands and functions,

such as turning lights on and off.

Basic Components of a Wireless CCTV System

Wireless Cameras IP Camera and Wireless

Antenna/Transceiver Network Video Recorder (NVR) Wireless Access Point Wireless Transceiver Omni-directional Antenna

PoE Injectors

IP camera These cameras

operate differently than analog CCTV cameras, by sending and receiving data over a computer network and the Internet.

IP cameras were introduced onto the video surveillance scene in the 1990s.

Today it is being used in residential, school, retail , business and restaurant areas.

Working of wireless CCCTV system

Conversion from wired to wireless Instructions

Making the Camera Wireless› 1 . Check the back of the camera and look for the "video out" jack. › 2. Plug one end of one of the video cables into the camera's

"video out" jack and the other end into the wireless transmitter's "video in" jack.

› 3. Turn the camera and the transmitter on. The camera should begin sending its video signal and images into the transmitter, which should send out the signals via a radio frequency to be picked up by the receiver.

Hooking Up to a Monitor› 4 . Connect the wireless receiver's "video out" jack to the

monitor's "video in" jack. The location of the jack on the receiver depends on the manufacturer.

› 5. Turn on the receiver and the monitor and set the monitor to its proper video channel. This is usually labeled as "VIDEO" or "INPUT."

› 6 . Tune the wireless receiver according to the manufacturer's instructions until it is in sync with the wireless video transmitter. The camera's images should appear on the screen.

Use and application Deter crime Safer Work Environment Maintain Records and Evidence Industrial processes Traffic monitoring Transport safety Control of retail

Advantage and disadvantage

Advantage- wireless Ease of installation Flexibility Constant Monitoring Low Cost

Disadvantage-- frequently check of batteries. maintaining a line of sight Need of encryption Blocking of transmission Distortion in image quality Privacy

Conclusion In conclusion CCTV camera

remains the best utilization used for surveillance purposes.

. Wireless CCTV when managed and deployed correctly can help to make a positive difference to the lives of our communities and to reduce crime and disorder.

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