Range hood, control method and device thereof and storage medium

The invention discloses a range hood, a control method and device thereof and a storage medium. The range hood comprises a visual detection sensor, the visual detection sensor is arranged on a cooking bench, and the method comprises the following steps: acquiring current frame image data generated by the visual detection sensor; processing the current frame image data to obtain smoke data, the smoke data including at least two of first smoke data, second smoke data and third smoke data; wherein the first smoke data is used for representing smoke concentration data extracted based on colors, the second smoke data is used for representing smoke concentration data extracted based on static filtering, and the third smoke data is used for representing smoke concentration data extracted based on dynamic filtering; based on the smoke data, smoke detection data are generated, and the smoke detection data represent the size of the current smoke area. Therefore, the detection accuracy of the oil smoke is improved, and