| 摘要 |
<p>A dispensing system for controlling and displaying information regarding self-service operation of each of a plurality of fuel dispensers in a gasoline station includes, in one embodiment, an operator console having a CRT display displaying the status of each of the dispensers as well as current and previous sales data and a data entry keyboard for entry of sales and other data together with switch means for arming dispensers for self-service operation and for actuating the system for displaying selective dispenser information. The CRT and data entry keyboard are coupled to a central control unit which includes a programmed memory central processing unit for handling data between the central control unit and each of a plurality of dispensers as well as dispenser communications interface circuits. Each of the dispensers includes means for generating signals representative of the volume of gasoline pumped from the dispenser as well as circuit means for displaying volume and price data to the customer and means for coupling the dispenser to the central control unit for the actuation of the dispenser and transfer of data to the central control unit. In another embodiment, each of the dispensers further includes a central processing unit with a memory for controlling the computation of data at the dispenser and for transferring data between each of the dispensers and the central control unit.</p> |
