| 摘要 |
A fare collection and general payment system comprises a payment token (27); (71) comprising a memory (41). At least one public transport provider terminal (6), (8) comprises means for responding to a service-demand for transport, including means for receiving a payment from the payment token. At least one retail terminal (45) comprises means for receiving a payment from the payment token for goods and/services. The transport provider terminal (6, 8) and the retail terminal (45) comprise means for encrypting communication with said payment token (27); (71) using an encryption key. The system further comprises a control centre (4) including key generating means, associated with a wireless communication broadcasting system (2, 3) and arranged to broadcast replacement encryption keys to the transport (6, 8) and retail terminals (45) at predetermined intervals.
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