| 摘要 |
A microprocessor parking meter includes: a casing; a plurality of control keys formed on the casing for selecting several parking areas, for starting a timing operation or for stopping the timing operation; a display of multiple digits formed on the casing for showing a selected parking area, a number of parking units and a real clock time, a microprocessor operatively scanning the display and the control keys for showing or sequentially degrading the number of parking units each unit corresponding to a time interval with respect to a selected parking areas among the plural different parking areas during a lapse of parking time, forming a compact unit held in a car ready for outside inspection or for convenient parking service by a owner of the meter.
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