| CPC B67D 7/085 (2013.01) [B67D 7/302 (2013.01); G01F 1/007 (2013.01); G01F 25/17 (2022.01)] | 19 Claims |
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1. A method comprising:
receiving, from a sensor in operable communication with a fuel storage facility, fuel inventory data characterizing a level of fuel stored at the fuel storage facility;
receiving, from a flow meter in fluid communication with a fuel dispenser nozzle and the fuel storage facility, flow meter data characterizing an amount of fuel dispensed from the fuel storage facility by the fuel dispenser nozzle and measured by the flow meter;
receiving fuel transaction data characterizing the dispensing of fuel by the fuel dispenser nozzle and the dispensing of the fuel by one or more additional fuel dispenser nozzles, the one or more additional fuel dispenser nozzles in fluid communication with the fuel storage facility;
determining an estimate of meter drift characterizing a change in calibration of the flow meter based on the received fuel inventory data, the received flow meter data, and the received fuel transaction data, the determining including:
determining a meter ratio corresponding to the flow meter, the meter ratio characterizing a ratio of a determined volume of fuel dispensed by the fuel dispenser nozzle over a period of time to a determined change in the level of fuel stored at the fuel storage facility over the period of time, and
determining an amount of deviation of the determined meter ratio from previously-determined meter ratios corresponding to the flow meter, wherein the determined amount of deviation characterizes the estimate of meter drift; and
providing the estimate of meter drift.
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