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  Home >What is ip Camera?
 

What is IP Camera:

       An IP camera (network camera) is different to a traditional CCTV camera in that the device can transmit data directly over an Ethernet link. IP cameras have an Ethernet port for connecting a network cable, and stream digital video. CCTV (analog) cameras have a BNC connector for connecting coaxial cable, and stream analog video. There are two types of IP cameras available - centralized and decentralized. For the purposes of surveillance, centralized IP cameras require a central network video recorder (NVR) to handle the recording, video and alarm management. Decentralized IP cameras have the network video recorder (NVR) functionality built-in, so can record directly to any type of digital storage media (Flash/SD, Hard Disk Drive, Network attached storage).

     2 way audio - allows users to communicate what they are seeing (e.g. Petrol station clerk assisting a customer on how to use the prepay pumps). Or to warn perpetrators via the camera's speakers.

    High Resolution - as with digital still cameras, the resolution of IP cameras is superior to analog cameras and is increasing. no cap or restriction on image quality, as is the case with CCTV camera, which are restricted by the PAL/NTSC standards.

   Smart phone - some, but not all, IP cameras have built-in VoIP so they can send and receive phone calls based on events, allowing voice and video interaction via mobile phones.

What is the difference from IP Caneras and CCTV Cameras ?

       IP Camera (Internet Protocol Camera) technology is very different to "closed circuit television" (CCTV) technology. Based on the Internet Protocol the cameras can send and receive data via a computer network (WAN/LAN) and the Internet, CCTV (analog) cameras cannot. IP cameras now represent the fastest growing product segment in the video surveillance market. IP Camera technology is not limited to the resolution restrictions as set by the NTSC/PAL analog video standards. What is driving the market shift away from CCTV technologies is the higher resolutions offered by IP based video devices.

    IP cameras allow homeowners and businesses to view their camera(s) through any internet connection available through a computer or a 3G phone

IP Camera History

The first centralized IP camera was released in 1996 by Axis Communications. It used a custom web server internal to the camera. In late 1999, they started using embedded Linux to operate their cameras. Axis also released documentation for their low-level API called "VAPIX" which builds on the open standards of HTTP and RTSP. This open architecture was intended to encourage third-party software manufacturers to develop compatible management and recording software.
The first decentralized IP camera was released in 1999 by MOBOTIX. The camera's Linux system contains video, alarm and recording management functionality, thus the camera system does not require licensed video management software for the purposes of surveillance.
Megapixel IP cameras are now available at resolutions of 1, 2, 3, 5 and even 11 megapixels. Today there are many manufacturers of IP cameras. IP surveillance equipment vendors include both specialized digital imaging equipment manufacturers and larger manufacturers that are active in consumer, broadcast, and security video.

MegaPixels IP Camera

Megapixel IP cameras are now available at resolutions of 1, 2, 3, 5 and even 11 megapixels. Today there are many manufacturers of IP cameras. IP surveillance equipment vendors include both specialized digital imaging equipment manufacturers and larger manufacturers that are active in consumer, broadcast, and security video.

Advantages of IP Cameras
  • Reduced system cost and added functionality due to general-purpose IP networking equipment infrastructure.
  • Lower cost of cabling in large installations (CAT5e instead of RG-59 coaxial cable).
  • Reduced space requirements in large (many camera) CCTV setups because video switching and routing is done via computer and does not need physically large and expensive video matrix switchers.
  • Wireless allows the camera to be placed just about anywhere.
  • No limit on resolution inherent in standard analog video formats. Megapixel cameras can far exceed image detail from conventional CCTV cameras.
  • On-camera automated alerting via email or file transfer in response to video motion detection or dry-contact alarms.
  • Password lockout of unauthorized personnel to prevent viewing images or altering the camera configuration.
  • Support for different streaming media and compression formats to relieve transmission bandwidth and data storage requirements.
  • Encryption of camera control data and audio/video data.
  • Support for new embedded intelligent video motion detection (video analytics) with shape recognition and counting applied to objects, people, and vehicles.
  • Integration of video surveillance with other systems and functions such as access control, alarm systems, building management, traffic management, etc.
  • Remote configuration, diagnostics, and maintenance.
  • Future-proof installations with field-upgradeable products due to the ability to upgrade camera firmware over the network.
 
 
 
 
 
 
 
 
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