| 摘要 |
<p>An electrically controlled access/monitoring system which is operative to control access to a controlled area by persons having individual user tags bearing unique remotely readable data, in which the system comprises: an entry control station; a monitoring arrangement at the entry control station to monitor individual user tags of persons requiring entry to the controlled area, the monitoring arrangement being capable of reading the data by transmission of electro-magnetic signals e.g. radio signals between an active or passive tag and the monitoring arrangement; and a control system which is responsive to monitoring signals generated by the monitoring arrangement in order to permit or to deny entry to the controlled area, with the control system preferably including a ticket issuing machine to issue an entry ticket to each monitor permitted tag user, and a gate which is operable to allow access to the controlled area on presentation of an issued ticket.</p> |
