Server computers in Control Center
In the Control Center in Fokida Prefecture building has established a special server which installed the applications of the individual subsystems.
Moreover o server is connected to UPS, which will ensure the continuity of a stream for at least 20 minutes after the current fall.
Telecommunication equipment interface server to the channels of information and the sensor stations
Figure 4 General view of interconnection subsystems
The server (server) and the RDBMS database linked via Ethernet to a gateway, and then through the router to the Internet. The gateway is able to provide static IP addresses to GPRS modem stations and billboards VMS.
H mission and collection of data from the central server stations and sensors, and VMS signs made using the Internet via secure channel (VPN) and use the SSH protocol and L2TP. So why the sensor stations, and billboards have been placed VMS GPRS modem, which also have embedded firewall that data collection and plates are available only from authorized IP addresses, and any other unauthorized access to actions discarded.