Switch machine operation and maintenance early warning method, system and device and storage medium

The invention relates to a switch machine operation and maintenance early warning method, system and device and a storage medium, and relates to the technical field of railway signal equipment, and the method comprises the steps: obtaining a current voltage actual value and current turnout state information of a switch machine in real time; analyzing and acquiring a current voltage reference value according to the current turnout state information; analyzing and calculating a difference value between the current actual voltage value and the current voltage reference value and taking the difference value as a current voltage deviation value; judging whether the current voltage deviation value is within a preset voltage deviation reference interval or not; if yes, outputting preset normal operation prompt information; if not, analyzing and calculating a difference value between the current voltage deviation value and the voltage deviation reference interval, and taking the difference value as an abnormal voltag