With license plate recognition, it is possible to automate industrial plants semi-fully or completely. One speaks of manless installations, if to the enterprise no operator is necessary. An exemplary system with number plate identification is the manless gas filling of tank trucks.

When entering the system, the gate will automatically open as soon as a registered LkW is reached. The tank load moves to the scale, the entry weighing is started. With a valid weighing of the empty tank train, the weighing barrier opens. Within the system the tanklaster is only delivered the gas which is approved for its car. After filling, the tank truck moves to the exit scale. The two weighings can be compared with the vehicle license plate. At the end, the exit gate opens and the loaded truck can leave the terrain without the help of operators.