In recent years, video surveillance has shifted to the IP network. The change is not just for higher resolution images and longer retention, the growth of IP surveillance has resulted from a variety of benefits. One of the key benefits is consolidating hardware resources which increases performance, availability and utilization across the three parts of a surveillance network: cameras, video servers, and storage.
Of course there are more advantages of IP video surveillance, here’s a killer list provided by excITingIP.com:
Scalability: IP Surveillance system scales from a single camera to thousands of cameras (in the increments of single camera) by just increasing the cameras, memory and processing power of the back-end servers.
Reliability/Redundancy: As standard IP hardware is used, trouble shooting and availability of spare parts become easier for IP Surveillance. IP based data storage enables off-site storage and back up in multiple locations as standard hard disks are being used. And complete redundancy can be created at the network and individual component level (Servers etc) to make sure that there is no single point of failure.
Cost: IP Surveillance use the IP Network components like Catx cables and network switches. This network can also be shared with other applications. So, the cost of setting up and maintaining twisted pair IP network is lesser than the cost of setting up and maintaining analog co-axial cable networks, which might be useful only for surveillance.
Power for Cameras: Since Catx cables in IP Networks support Power Over Ethernet standard, both electrical power and data can be carried to the cameras in the same cable (Instead of requiring a separate power source/ adaptor/ power cabling etc).
Open Standards: As most of the IP systems are based on open standards, multiple vendor interoperability is possible with IP Surveillance.