Video observation and broadcast at the polling station

It so happened that I was invited to the public expert council for installing video cameras at polling stations. The sentences that are now ripening around me revolve around an inexpensive open-platform smartphone (Android) with custom firmware for an aunt-watcher adapted to the bandwidth of a modest webcast and at the same time a full recording on an 8GB SD card, a vertical tripod screwed directly to the urn, and most importantly, the application "electronic diary of the observer"; I am guided by the maximum cost savings, minimum waste (androids should be handed back to Svyaznoy / Euroset, rental of wifi access points from providers, where it is possible and the school has DSL, etc.)

Sensible sentences, realistic ideas, any criticism are highly welcome.

UP: Add introductory information: COIB-s can not be put on more than 5% of the plots. The Internet at PECs in the electoral process / the voting process cannot be applied in any way under the current law.