network camera

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network camera

A digital camera used for surveillance. Network cameras are the successor to the analog closed-circuit TV (CCTV) systems that have been widely used for decades, but instead of a dedicated network, they use the local IP network, which also provides Internet access. Pioneered in 1996 by Axis Communications and also called an "IP camera," network cameras use standard IP protocols to transmit Motion JPEG, MPEG or H.264 video. See CCTV, ONVIF, MPEG and H.264.

Video (with or without audio) from all the cameras is recorded simultaneously on a dedicated network video recorder (NVR), which is a computer with video management software. Security services also provide cloud storage in lieu of or as backup for local recording. Most network cameras have motion sensors as well as built-in Web servers running Linux, which allows them to be adjusted and viewed from any Web browser.

Security cameras designed for the home with recording in the cloud may or may not be called network cameras (see connected camera).

One or Two Cables
Wi-Fi cameras use one power cable plugged into an AC outlet. Ethernet cameras require an additional cable that goes to the switch. However, power-over-Ethernet (PoE) cameras use a PoE switch for power (see PoE). See Webcam, PIR sensor and PTZ.


A Network Camera
This earlier Axis Ethernet camera plugged into an Ethernet switch (beige wire) and drew power from an AC outlet (black wire). Wi-Fi and power-over-Ethernet (PoE) cameras use only one cable.
References in periodicals archive ?
IP video surveillance is also increasingly playing a crucial role in the smooth and efficient running of significant parts of the UKs rail network, highlighted by the successful deployment of network camera technology at Canary Wharf Station.
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OnSSI was founded in 2002 with the goal of developing comprehensive and intelligent IP video surveillance management software.
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Summary: Axis Communications has announced that the official exam for the Axis Certification Programme has gone live and is open to all security professionals who aim to validate their competence and skills in IP video surveillance.
com)-- According to a new report by Allied Market Research entitled, "South Africa IP Video Surveillance and VSaaS Market - Size, Industry Analysis, Trends, Opportunities, Growth and Forecast, 2013-2020," the South African IP video surveillance and VSaaS market is expected to reach $51.
As Genetec grew its business in the physical IP video surveillance industry, the company says it chose to transition its PLM system to Omnify Empower PLM for greater performance features and a turnkey solution.
The final two parts deal with an overview of video technology in general, and a brief tour through various devices and applications, including cameras, motion detectors and IP video surveillance systems.
At Intersec, Panasonic also revealed its next generation surveillance solutions for law enforcement, finance, transportation industries and said: "They can rely on our IP video surveillance systems, to enhance safety.