Digital universal meter calibration method and related device

The invention discloses a digital universal meter calibration method and a related device. The method comprises the following steps of: acquiring a calibration instruction; transmitting a first visible light signal according to the calibration instruction, wherein the first visible light signal is used for representing a to-be-calibrated function type and a first standard value of the function type; acquiring a first standard signal, wherein the first standard signal is determined according to the to-be-calibrated function type and the first standard value of the function type; measuring the first standard signal to obtain the first measurement value of the function type; and according to the first standard value of the function type and the first measurement value of the function type, obtaining a calibration coefficient through calculation, wherein the calibration coefficient is used for calibrating the function type. By implementing the scheme of the invention, automatic calibrationof the digital universal