초록 ▼

A fuel dispenser-credit card reader control system for controlling the fuel dispensing process and accepting payment for the fuel dispensed through a card reader is disclosed. The dispenser controller has a microprocessor with read-only-memory for storing operating routines and command code and read

A fuel dispenser-credit card reader control system for controlling the fuel dispensing process and accepting payment for the fuel dispensed through a card reader is disclosed. The dispenser controller has a microprocessor with read-only-memory for storing operating routines and command code and read-and-write-memory for storing responses. Configuration circuits translate the communication language of the dispenser controller into a communication protocol readable by the dispensers such that the dispensing process of various dispenser brands can be controlled and payment for the fuel accepted. A feature of the disclosure is that the controller includes a command for transmitting an encrypted PIN number data block from the card reader to a site controller without analyzing the data, manipulating the data, or permanently storing the data.

대표청구항 ▼

[ What is claimed is:] [1.] A fuel dispenser control system for controlling at least one fuel dispenser having a pump means with a first microprocessor with programmable memory device for dispensing fuel and an in-dispenser-card-reader means with a second microprocessor with programmable memory devi

[ What is claimed is:] [1.] A fuel dispenser control system for controlling at least one fuel dispenser having a pump means with a first microprocessor with programmable memory device for dispensing fuel and an in-dispenser-card-reader means with a second microprocessor with programmable memory device for accepting payment for fuel dispensed, used in combination with a computer means having a third microprocessor with programmable memory device for serving as a site controller for the fuel dispensing process, comprising:(a) a fuel dispenser control means including a printed circuit board with a fuel dispenser control processor including a read-only-memory device for storing a series of commands to control said fuel dispenser during the fueling process and a read-and-write-memory device for storing responses from said dispenser during the fueling process, operatively connected to said first and second microprocessors in said dispenser and to said third microprocessor in said computer means, for(1) reading said second microprocessor in said in-dispenser-card-reader to determine the presence of a customer at said dispenser and how said customer intends to pay for dispensed fuel;(2) requesting that said customer enter a PIN number into a keypad on said in-dispenser-card-reader and transmitting to said computer means encrypted PIN number block after it has been encrypted by said keypad;(3) retrieving said commands from said read-only-memory device in a predetermined sequence and outputting said commands in a readable format to said first microprocessor in said dispenser causing said dispenser to dispense fuel;(4) receiving response data from said first microprocessor during the fueling process and storing said response data in said read-and-write-memory device;(5) processing and outputting said response data to said third microprocessor in said computer means through a driver interface program to control the flow of data between the two;(b) a first configuration means functionally connected between said dispenser control processor and said first microprocessor in said dispenser for translating the communication protocols of the two wherein said commands are readable by said first microprocessor and said responses are readable by said dispenser control processor; and(c) a second configuration means functionally connected between said dispenser control processor and said second microprocessor in said dispenser for translating the communication protocols of the two wherein said commands are readable by said second microprocessor and said responses are readable by said dispenser control processor.