Really is weird system sia
ERP OBU can install that obiang unit in car and bike for live tracking via satellite ..
But limited bus fleet cannot install unit that has GPS + SIM based transmitter that syncs position at X second intervals Once reach bus stop, additionally bus captain need press stop location to alert central command. Locations where GPS signal not available cos of tall buildings (rare situation) can still use SIM based location alert. Routes mostly pre-defined - where got issue?
Of course got situation where got no network, or other errors - so need to store this info locally as well. And sync and flush every 15 days or so. When got network, sync Not like should be a ton of data if send compressed. Say 5G here 5G there, but cannot get this working properly meh? At any given time, no reason why 95% of total buses plying on public roads should not have the system online. 5% or less got errors in the timing, will be more than acceptable to us kumgong public mah