Aimed at different require of temperature and humidity of five roast period during tobacco leaf roasting

control system of tobacco leaf roast control tactics based on fuzzy-PID is proposed.In order to increase the color grade

savory grade and quality grade of tobacco leaf

the control system uses fuzzy-PID technology

decreases difference in temperature between roast house top and bottom

achieves fundamental leveling of temperature through adjusting rotate speed of axle flow draught fan

the control system can achieve heating up and steadying temperature through controlling oxygen quantity of coal burning by adjusting rotate speed of oxygen fan

the control system can keep humidity smooth in roast house by controlling quantity of air entering roast house In fact

the control system can affectively control running states of object

it has good characteristics such as high control precision

good stability

this is the reason that ensure the quality of tobacco leaf roasting.