Network Protocols for Video Surveillance
NETWORK PROTOCOLS FOR VIDEO SURVEILLANCE
Remote surveillance is the widely used marketing rather than technical term in CCTV engineering & most of the equipment’s are marketed & sold using this term. It is the matter of fact that the CCTV & surveillance systems can be connected to the internet using the available network ports on the devices & equipment’s.
Among the CCTV hardware, the web server is the basic requirement for connecting any CCTV camera or related video surveillance equipment to internet or intranet & rest are the Internet protocols. Each protocol has specific function during & after the connection, IP CCTV cameras; NVR’s & modern DVR’s have built-in web servers. The most important protocols in transmission of Video, Audio & Data over the internet are
| ACRONYM | DEFINITION | |
| HTTP | Hyper Text Transmission Protocol | This is the logical link between nodes & the texts for the transfer of hypertext’s. Generally we refer it as the request response protocol between client & the server. |
| TCP | Transmission Control Protocol | This provides the communication service between the application program & the internet protocol i.e. connectivity at the transport level. |
| IP | Internet Protocol | This enables inter-working & is the major communication protocol for relaying the basic units associated with the packet switched networks. |
| UDP | User Datagram Protocol | This is used to send the data without prior communications to setup the specific data paths. It is transaction oriented, simple & stateless, unidirectional & broadcast type. |
| DHCP | Dynamic Host Configuration Protocol | This enables dynamic distribution of the network configuration parameters, Hence eliminates use of manual configuration. It operates on basis of client server model. |
| SMTP | Simple Mail Transfer Protocol | This is used for sending & receiving an email. |
| FTP | File Transfer Protocol | This enables to transfer the files from one host to other over the TCP network and is built on the client-server architecture. |
| UPnP | Universal Plug and Play | This enables networked devices to discover each other’s presence on the network so that data sharing is possible. |
| RTSP | Real Time Streaming Protocol | This enables to control the streaming media servers by establishing & controlling the media sessions between the end points. |
| TFTP | Trivial File Transfer Protocol | This enables the client to put or get the files from the remote host, and is widely used at the initial stages for devices booting from the LAN’s. |
| NTP | Network Time Protocol | This enables the synchronization of the clock over the packet switched variable latency data networks. It is used in peer to peer as well as client server models. |
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