| 摘要 |
<p>A transaction authorisation system comprises a user interface unit (30) capable of accepting a transaction authorisation and a utility meter (10) provided at a location having an associated location identifier unique to the location, wherein the utility meter (10) is arranged to communicate with the user interface unit (10), to obtain a transaction authorisation, and to transmit an authorisation request based on the transaction authorisation and location identifier to obtain authorisation of the transaction.</p> |
