Fan speed regulation method and device and medium

The invention discloses a fan speed regulation method and device and a medium, and is suitable for the technical field of fan control. Comprising the following steps: acquiring temperature point data of each temperature point device connected with a current controller, and determining a corresponding PWM value according to each temperature point data; target controllers corresponding to the temperature point devices are obtained, the PWM values are synchronized to the target controllers, and the target controllers are controllers, except the current controller, in the redundant controllers and are associated with the temperature point devices; and the maximum PWM value is determined according to the PWM values of the temperature point devices corresponding to the current controller and the target controller so as to be used for fan speed regulation. According to the method, the controllers associated with the temperature point devices are synchronized, so that the problem of resource waste caused by the fact