Data transmission from surveillance cameras in the Moscow metro

Gentlemen, long tormented by the question of how can send video from surveillance cameras installed in subway cars in real time in the situation room? If I count on my fingers, on average, each composed of 4 wagons, each wagon by 2 cameras + n trains on the line. Wi-Fi is unlikely to cope with a constantly moving signal and so many cameras + problems with roaming.
October 3rd 19 at 03:43
3 answers
October 3rd 19 at 03:45
There is a special industrial Wi-Fi access points, for example, areplaced on supports. They go with support for MIMO, also controlled by the controller, more need for seamless roaming and to work in MESH networks.
In cars put a similar point, which already cling via Wi-Fi to those on the pillars. Also put in the cars cameras in the likeness of these.
Gemoroyno in this decision is to bring power to the outlets on the poles.
The access point is supplied only food, and they work as repeaters, or in addition to the power cable required for data? - Mavis_Miller commented on October 3rd 19 at 03:48
Usually powered via PoE. But if there is such a possibility. - sincere_Hoppe commented on October 3rd 19 at 03:51
October 3rd 19 at 03:47
There are also purely analog solutions, broadcasting over the radio. The receiving antenna works a stationary waveguide cable is routed in the tunnel.
October 3rd 19 at 03:49
in the radio-emitting cable, the RFS signal is being transmitted

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