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IP camera

IP camera is a device that is able to integrate the camera with transceiverem with the Protocol. This device receives control data and sends the image data via the Internet. So, cameras are widely used for surveillance of premises, shops, etc. unlike the analog cameras of industrial television (CCTV), do not require local recording device, and only access to the normal LAN, which typically is already in place. Such devices have many advantages compared to analog systems. IP cameras typically offer higher image quality at a lower price of the whole setup. In addition, due to the fact that cameras are equipped with transceivers network use the Internet, you can access them from anywhere in the world.

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Web cameras

IP camera are now widely used in the systems of industrial supervision - examines the situation in shops, businesses, offices or shopping centers. Thanks to the easy installation that uses existing in the building of the infrastructure of the ethernet connections they are cheap to install and maintain. Due to the fact that it connects with the existing network cables and recording devices can be placed with all the equipment to the network. Thanks to the advanced automation that is built in this kind of device, the number of cameras and the storage capacity of recorders can be limited. All this leads to cost reduction.

The history of IP cameras

The first centralized IP camera was introduced in 1996. Although promowano it later as a device that provides direct access to the image distortion from any location with an Internet connection, a web camera was able to stream video in real time, given the high bandwidth requirements. Initially the system worked on custom software, but in the summer of 1998 began to get Linux. In subsequent years, many new APIs for IP cameras, such as VAPIX, or RTSP. In 1999, the market was presented first from a centralized to a distributed IP cameras. The Linux system is contained already the function of video management, alarm and recording. The first IP camera with built-in analysis of video content was presented in 2005. She was able to detect many different events, such as theft of an object exceeding a line through the person when struck in a certain area or the movement of the car in the wrong direction.

The standards used by the network camera

Analog CCTV cameras used television formats (e.g. CIF, NTSC, PAL or SECAM). Since 2000 there has been a shift in the television industry consumers in the direction of HD (e.g., 1080P (Full HD), 4K (Ultra-HD) format and widescreen 16:9). The cameras followed these trends. To solve the problems associated with the standardization of IP video cameras, in 2008, was created by two groups of industry: Open Network Video Interface Forum (ONVIF) and Physical Security Interoperability Alliance (PSIA). IP cameras can differ from each other in resolution, functions, coding and API. Camera and equipment is recorded that operate by the same standard can communicate with each other.