Planer tool system and tool bit recognition device thereof

The utility model discloses a planer tool system and a tool bit identification device thereof, the planer tool system comprises a tool bit assembly and a tool bit power supply device, and the tool bit identification device comprises a magnet arranged in the tool bit assembly; the Hall element, the amplifying circuit and the control unit are arranged in the tool bit power supply device, the Hall element outputs an induced voltage signal by inducing the magnetic field intensity generated by the magnet when the tool bit assembly is installed on the power supply device, the input end of the amplifying circuit is connected with the Hall element, and the output end of the amplifying circuit is connected with the control unit. The amplification circuit amplifies the induced voltage signal, the amplification factor is adjustable, and the control unit identifies the type of the tool bit assembly according to the amplified induced voltage signal by adjusting the amplification factor of the amplification circuit. Theref