| 摘要 |
<p>Apparatus for use in the collection of payments for commodities such as electricity, gas and the like the apparatus utilises signals from units from a KWH meter or meters, from coins and from a timing device to present information indicative of credit remaining and average weekly and daily cost. Metering means (3a, 3b) receives a signal indicative of the amount of commodity used, crediting means (4a, 4b) receives a signal indicative of the credit for the commodity entered by the user and control means (1) controls the operation of the metering means and crediting means. The control means includes storage means (7) for storing signals cumulatively and calculates a daily and weekly average of commodity consumption. The control means also calculates and indicates the value of credit at predetermined intervals.</p> |
