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Flow signal monitor for a fuel dispensing system

  • US 5,361,216 A
  • Filed: 07/02/1992
  • Issued: 11/01/1994
  • Est. Priority Date: 07/02/1992
  • Status: Expired due to Term
First Claim
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1. A flow signal monitoring system having a microprocessor for monitoring a digital data stream in a data wire between at least one fuel dispenser and a dispenser controller, wherein said data stream includes a plurality of data fields including one data field comprising a command code, pump number, pump status, and dispensed fuel volume and a value containing information on the amount of fuel dispensed from each fueling position which is collected and stored for down-loading to a display, a printer, or tank monitor;

  • comprising;

    (a) an electronics communication translator means, connected to said data wire between said at least one fuel dispenser and said dispenser controller, for converting said data stream into a computer logic data stream having corresponding data fields including information on the amount of fuel dispensed from each fueling position;

    (b) a microprocessor including plural input-output ports, programmable read only memory, programmable read and write variable memory, said microprocessor having bus means connecting said communication translator with at least one of said microprocessor ports for receiving said computer logic data stream;

    (c) a programmable data field selector means, having bus connection to at least one of said microprocessor ports, for instructing said microprocessor to recognize, select and process said corresponding data fields containing information on the amount of fuel dispensed from each fueling position, and to discard all other data fields; and

    (d) a memory means, coupled to said microprocessor, for receiving and storing information on the amount of fuel dispensed from each fueling position.

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