| 摘要 |
Movable parking meter has means which interrupt card operation and display of corresponding signal (2) when the card operates without interruption for a period equal to a predetermined period corresponding to the maximum authorized parking duration. The card contains a battery (10) for electrical supply and electrical contacts (7,8) and it is actuated by a contact (9) in the card support when the card is inserted. Mobile prepayment card parking meter consisting of: (a) a throw away prepayment card (1) having a counter whose value reduces from a nominal value towards zero as parking time elapses, and a controller which operates the counter at a speed proportional to the parking time hourly rate. Has also a zone (2,3) for displaying a signal showing that the card is operating; means (4,5,6) to vary in an almost continuous way the hourly rate value for the credit card so that it is made equal to that of the parking zone; an electrical energy source (10); two contacts (7,8) to connect the card systems to the electrical supply source; an independent support (1a) to receive the card.
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