We speak a lot about IP cameras, by opposition to analog cameras today

We distribute cameras IP. There is no question of disqualifying this solution. An excellent item, accompanies our remarks, is available to the downloading here. It is a question of showing that the specific characteristics of each element components a solution of video monitoring IP take part in the output of the system.

A camera IP, it is a camera mainly designed to be integrated in a network and to serve their frames stored on one or more servers. - A camera with a connector RJ45 to simplify -. For better determining this solution, it is enough to note the principal arguments allotted to systems IP:
- Simplified Wiring,
- Decentralized Architecture.
- Turnover related to the infrastructure network, if have does not make the choice of a dedicated infrastructure network.
- High Prices of the hardware

Concerning the power supply of cameras IP:
The PoE feeding - power over Ethernet - is usable in a small configuration without mobile external camera. Attention however with the peripherals not PoE! In general, the feedings are separated and injected into the network cable for reasons of cost, a PoE rack is relatively expensive. The power available on PoE not allowing all the configurations, PoE is not usable systematically and a second wire - in the ideal an electric distribution with UPS is necessary as for the analog cameras.

The infrastructure network
To study seriously, the switchers in place will not be able in the case of cameras MEGA-PIXEL to hold the charge if a great number of cameras is considered.  Hundreds of MEGA-pixel are to be treated to ensure fluidity necessary, without collapsing the network. In this case the switchers will be adapted to the flow necessary. The network will have to be dedicated if that in place is not adapted. The distances are limited to 100m with normal network wire, if not the passage to optical fiber and WiMAX are to be considered.

The cost of labor:
Very variable according to your geographical situation and of the speaker, firm of electricity, service company in security or data processing. We will not retain the argument financial about wiring because equivalent or higher than an analog solution. The interventions be at the level of the cupboards of mixing, switchers, feedings in addition to the connecting cable

Amortization
The analog cameras of last generation are redeemable quickly compared to their costs. Cameras IP can be called in question of the day at the following day by the evolution of a protocol registered in hardware (Web server, IPv6 example), also attention with the choice of the characteristics and the mark of those. A leader, by definition a recognized manufacturer, allows to perennialize your investment.

The recording
For flows of pictures coming from IP cameras, the storage capacity and thus the history available on line are to be studied. In particular for cameras MEGA-PIXEL - 4 times higher in term of definition than the best analog cameras.

Currently, only cameras IP MEGA-PIXEL offer a technical advantage some on the analog systems, but require a serious study.

To follow…