Fan management system and method

A fan management system, comprising:

• a fan comprising a driving circuit, wherein the driving circuit is configured for driving the fan, and the fan operates in an operation mode;
• and
• a server connected to the fan and configured for controlling the operation of the fan;
• wherein the driving circuit outputs a digital label signal when the fan operates abnormally, and the server obtains a production history, an operation information and a warning message of the fan through the digital label signal,
• wherein the server adjusts the operation mode of the fan according to the warning message,
• wherein the warning message of the fan comprises a life evaluation to the fan, the life evaluation comprises at least one of a voltage usage time of the fan, the real-time voltage and current value of the fan, the temperature detection to the fan, and the dust and foreign object detection to the fan,
• wherein the driving circuit has a rotation detection pin, the rotation detection pin outputs a rotation detection signal and the digital label signal when the fan operates abnormally, and the rotation detection pin stops outputting the rotation detection signal and the digital label signal when the fan is restarted or operates normally.