| 主权项 |
1. A car parking system comprising:
an exit control apparatus, and a host system that maintains records of a plurality of active optically readable codes (ORCs) that can be presented to the exit control apparatus of the car park for egress from the car park, wherein at least some of the active ORCs are associated with respective ones of a plurality of subscribers, wherein: the exit control apparatus is in data communication with the host system and comprising an optical code reader; the exit control apparatus is configured to respond to presentation of an ORC to the optical code reader by reading the ORC, communicating with the host system to determine whether the read ORC corresponds to an active ORC, and upon the read ORC corresponding to an active ORC, controlling a barrier to permit a vehicle to exit the car park; and the host system is configured to respond to the read ORC corresponding to an active ORC associated with one of the plurality of subscribers by making the ORC inactive, associating a new active ORC with the subscriber and providing the new active ORC to the subscriber. |
