They communicate on the cellular network with a central authority to display messages — telling motorists there's no parking between 3 and 6 p.m., for instance, or warning of towing enforcement during special events.
Not exact matches
The self - sustainable traffic signs powered by solar energy
communicate over the
cellular network, «waking up» for certain pre-scheduled windows of time when the content
on the sign — denoting parking rules and the timeframe in which they hold true — is changed via the
cellular network.
You will longer need your phone nearby to use apps
on your Android Wear device, because instead of requiring a tethered connection to your phone, it will
communicate through Bluetooth, Wi - Fi, or
cellular network.