Planar current field deratization device, system and method

The invention provides a planar current field deratization device, system and method. The planar current field deratization device comprises a first control terminal, a spraying pipe, an electrode plate and a pyroelectric infrared sensing element; a plurality of through holes which are sequentially arranged in rows are formed in the spraying pipe, the spraying pipe communicates with a liquid storage device through a pipeline, the liquid storage device communicates with a gas storage bottle through an electromagnetic valve, the first control terminal is connected with the electromagnetic valve, and the pyroelectric infrared sensing element is connected with the first control terminal; and the first control terminal is connected with the electrode plate through a power supply module, the electrode plate comprises a positive electrode plate and a negative electrode plate, the spraying range of the spraying pipe at least covers the area between the positive electrode plate and the negative electrode plate, and th