| 摘要 |
The invention relates to a system for checking entrance tickets with a view to detecting duplicated entrance tickets. The invention is characterized in that the entrance tickets have an individual coding that can be read by a reading device. The reading device is connected to a computer which is able to recognize a duplicated entrance ticket. The entrance ticket has a first arbitrary coding and a second continuous coding. The first coding can be recognized with the naked eye. At least one of the codings is stored on a magnetic strip arranged on the entrance ticket. The coding of the entrance tickets is stored in a memory that can be accessed on the computer. In this method for detecting duplicated entrance tickets, the entrance tickets have at least one individual coding and the coding is read by a reading device upon admission, and fed to a computer which registers the coding and triggers an alarm signal upon repeated presentation of the same coding.
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