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NETWORK VIDEO SURVEILLANCE. CCTV Closed-Circuit Television (CCTV) is the use of video cameras to transmit signal to a specific place on a designated device.

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Presentation on theme: "NETWORK VIDEO SURVEILLANCE. CCTV Closed-Circuit Television (CCTV) is the use of video cameras to transmit signal to a specific place on a designated device."— Presentation transcript:

1 NETWORK VIDEO SURVEILLANCE

2 CCTV Closed-Circuit Television (CCTV) is the use of video cameras to transmit signal to a specific place on a designated device. It may employ point to point (P2P), point to multipoint or mesh wireless links. Applicable for surveillance in areas that may need monitoring such as banks, casinos, airports, military installations and convenience stores. CCTV systems may operate continuously or only as required to monitor/capture a particular event.

3 ANALOG BASED CCTV An analog surveillance camera consists of a CCD sensor. Which captures the image and then digitizes image for processing. But after transmitting the video, it needs to convert it back to analogue so it can be received by an analogue device such as a video monitor or recorder. Unlike IP cameras, analog have no built-in web servers or encoders and these networking functions are implemented only on recording or controlling equipment. Analog surveillance video resolution is measured in terms of broadcast TV lines as viewed on a monitor screen. Video quality is charted with converging lines of higher and higher density. The TVL resolution number is the line density where the camera is no longer able to reproduce individual lines. The higher this number is, the better the picture. For Example 480 TVL510 x 492 600 TVL768 x 494 650 TVL811 x 508 700 TVL976 x 582

4 ARCHITECTURE OF ANALOG CCTV

5 IP BASED CCTV An IP camera is a camera that digitizes and processes analog images, encodes them internally, and then transmits the video information digitally over an Ethernet connection to a computer or similar device. An IP camera can have either a CMOS or a CCD sensor, and is available in the same styles as traditional surveillance cameras such as Pan/Tilt/Zoom, domes, bullets, box, infrared, covert, and wireless. IP cameras are typically equipped with an embedded web server and can be accessed and controlled over any IP network such as a WAN, LAN, Intranet, or Internet. By utilizing a standard web browser or client software users can view an IP camera’s video output from any local or remote location. IP cameras combine the capabilities of a camera with some PC functionality, do not require a direct connection to a PC to operate, and can be placed anywhere within a network. Just like any other PC on the network, an IP camera is a “network appliance”. It has its own IP address, connects directly to a wired or wireless network. A network camera that offers megapixel resolution uses a megapixel sensor to deliver an image that contains one million or more pixels. The more pixels a sensor has the greater the potential it has for capturing finer details and for producing a higher quality image. Megapixel network cameras can be used to allow users to see more details (ideal for identification of people and objects) or to view a larger area of a scene. This benefit is an important consideration in video surveillance applications.

6 Display formatNo. of pixelsPixels SXGA1.3 megapixels1280x1024 SXGA+(EXGA)1.4 megapixels1400x1050 UXGA1.9 megapixels1600x1200 WUXGA2.3 megapixels1920x1200 QXGA3.1 megapixels2048x1536 WQXGA4.1 megapixels2560x1600 QSXGA5.2 megapixels2560x2048 Megapixel resolution is one area in which network cameras excel over analog cameras. The maximum resolution a conventional analog camera can provide after the video signal has been digitized in a digital video recorder or a video encoder is D1, which is 720x480 pixels (NTSC) or 720x576 pixels (PAL). The D1 resolution corresponds to a maximum of 414,720 pixels or 0.4 megapixel. By comparison, a common megapixel format of 1280x1024 pixels gives a 1.3-megapixel resolution. This is more than 3 times the resolution that can be provided by analog CCTV cameras.

7 ARCHITECTURE OF IP CCTV

8 PROPOSED NETWORK SOLUTION FOR UFLEX

9 SOLUTION ADVANTAGE Enhanced Project Value: Comprehensive + Fiber ready development Enhanced Connectivity: Enhanced access to Multiple Data + Content Services with minimal connection costs. Value Added Services as Standard Offerings: Value added Services - CCTV + Security + Voice Intercom will be connected via the IP Phones. Future IP Based Services can easily be added on if proper Infrastructure executed. Lower Cost – High Return Model: The ability to uptake up to more than one potential Services. Maintenance: The service will have extra Capacity, offering quality service and easier planed maintenance. Access: IP Camera has one specialty; we can access the stream of security surveillance images from anywhere. Images can be access on the mobile with the help of internet. Remote access is not possible with CCTV camera as they are closed circuit.

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