The invention relates to the technical field of refueling
machine calibration, in particular to an intelligent refueling
machine calibration method which comprises the following steps that a sensor is installed in a refueling
machine, the initial temperature of an oil product is captured, the outflow volume of the oil product is accurately measured, and flow velocity information of the oil product is fed back in real time; configuring an intelligent valve, and setting opening and closing conditions of the valve; during oiling machine calibration, data in the whole calibration process is encrypted through an asymmetric
encryption algorithm, when a
calibration result is generated, a block chain links a data hash value to prevent the result from being tampered, and the identity
authentication of an oil gun is authenticated through a universal unique identification code; real-time monitoring is achieved through a sensor, an alarm is triggered when abnormity occurs, meanwhile, an
uninterruptible power supply is arranged, power supply is seamlessly switched at the moment of mains supply outage, and
continuous operation of key assemblies is ensured. According to the invention, through high-precision temperature acquisition, in combination with precise flow monitoring and foam discrimination technologies, oil
thermal expansion and cold contraction and foam influence are considered, the volume is precisely converted, and the metering error is greatly reduced.