Fan state sensing system

The utility model discloses a fan state sensing system, which comprises a transmission sensing mechanism and a tower drum sensing mechanism, the transmission sensing mechanism comprises a field collector, and a plurality of axial sensing groups and radial sensing groups which are connected to the field collector; the axial sensing group comprises a plurality of vibration sensors for detecting axial vibration, and the vibration sensors of the axial sensing group are used as main bearings of a generator and a blade rotating shaft mounted on the fan; the radial sensing set comprises a plurality of vibration sensors used for detecting radial vibration, and the vibration sensors of the radial sensing set are installed on the upper portion, the lower portion and the side portion of a generator of a fan and a main bearing of a blade rotating shaft respectively. The tower drum sensing mechanism comprises multidirectional vibration sensing units capable of sensing at least in the horizontal direction and the vertical