Real-time pesticide mixing variable spraying device and method

The invention discloses a real-time pesticide mixing variable spraying device and method. The real-time pesticide mixing variable spraying device comprises an air supplying type spraying machine and an ultrasonic fruiter profile modeling module. The spraying machine is provided with a first microcontroller, a water supplying control module, a pesticide supplying control module, a jetting stirring and pesticide mixing module and a flow variable control module. The first microcontroller is respectively connected with the water supplying control module, the pesticide supplying control module, the jetting stirring and pesticide mixing module, the flow variable control module and the ultrasonic fruiter profile modeling module. The jetting stirring and pesticide mixing module is respectively connected with the water supplying control module, the pesticide supplying control module and the flow variable control module. The spraying device can improve the spraying degree of fog drops and the effect of evenness of sedimentation distribution of the fog drops in a canopy layer, efficient and high environmentally-friendly precise spraying work can be achieved, remote operation is carried out through a touch screen, the operating efficiency can be greatly improved, the application range is wide, the real-time pesticide mixing variable spraying device and method are suitable for forest and fruit industries and urban gardening plant protection, and the spraying effect is ideal.