The video surveillance system has been realized by Italtel in the course of 2016.
The cameras monitor the area H24. The recorded images are sent through the wireless network to the control center run by the Municipal Police.
For each Municipality, four main transport sites have been placed to be connected with a high capacity ring using microwave links (17Ghz). The ring allows a redundant path between the main points of the network and the use of microwave links provide high speed links in a cost-effective constraint.
The backbone has been used to collect all video streams coming from the peripheral sites and transport to the Police Main Office where images are stored and analyzed in case of need.
In a second phase, once the video surveillance system was activated, some municipalities added also the voice as a transported service on the same infrastructure.
Vandalism acts significantly decreased (i.e. the robberies of ICT devices or the damages to schools during the night almost disappeared since vandals and criminals can be identified through video surveillance systems). This means less expenses to buy again stolen devices or to repair damages.
Many robberies have been detected and the guilty have been arrested and for this reason citizens now feel themselves more secure.
The network infrastructure will be also able to be used to implement smart metering solutions, information totem and other services.
In summary, the selected technologies are:
- Avigilon, Sony or Bosch for the cameras (Fixed, PTZ or multisensor)
- Avigilon or Milestone for the NVR and the operator stations
- Cisco or Allied Telesis for the network devices
- Cisco and Zabbix for the monitoring system
- SIAE AlfoPlus for microwave 17 GHz links
- Ubiquity for HiperLAN 5 GHz links
Cisco has been chosen to provide networking equipment in terms of Layer 3 and Layer 2 switching and to provide the computing infrastructure (UCS) used for the monitoring system.
The layer 3 ring is based on the OSPF protocol to provide quick convergence in case of failure on one of the backbone links, while access sites are connected through P2P HiperLAN links.
Italtel was able to carry out the project on time, ensuring that the infrastructure can also be used for more services.