GB/T 28181-2011 Security and protection video monitoring network system technical specification for information transport, switch and control ((Text of Document is in English))

01/06/2012

170P

$280.00 USD

3.1.2 Data of network system
It refers to the information transported, switched and controlled in network system,
mainly including alarm information (analogue switch amount alarming and data protocol
alarming), video information (simulation video signal and digital video signal), audio
information (simulation audio signal and digital audio signal, equipment control information (serial port data and IP network data), equipment management information (serial port and IP network data) etc.
3.1.3 Front end device
It refers to the equipment of information collection, coding/treatment, storage, transport and safety control, installed at the site of monitor and control in network system.
3.1.4 Monitoring site
It refers to the location or places of front end device installation or monitor and control.
3.1.5 Monitoring center
It refers to the specific information collection, treatment and shared node in network
system.
Note: monitor and control management personnel conduct centralized management and control on network system, apply and deal with the monitoring information.
3.1.6 User terminal
It refers to the client equipment with operation demand for data and/or equipment in the system and registered with network system and authorized.
3.1.7 Digital access
It refers to access mode with which front end device or regional monitor and control
alarm system transports digital video and audio signal to the monitoring center through digital transmission channel.
3.1.8 Analog access
It refers to access mode with which front end device or regional monitor and control
alarm system transports digital video and audio signal to the monitoring center through
analogue transmission channel.
3.1.9 Analog-digital mixed monitoring system
It refers to the monitoring system with coexistence of simulation and digital signal
control and treatment methods at the monitoring center.
3.1.10 Digital monitoring system
It refers to the monitoring system with the existence of digital signal control and
treatment method at the monitoring center.
3.1.11 SIP: Session Initiation Protocol
It refers to the Framework Agreement for multi-party multimedia communication and
formulated by IETF (Internet Engineering Task Force).