Range hood ventilation system and control therefor

A method of operating a range hood ventilation system having a fan and a light source, the method comprising:

• configuring a plurality of sensors to detect movement proximal the range hood ventilation system;
• comparing the movement detected by each of the sensors to determine relative location information about the movement;
• determining whether the movement is intended as one of a plurality of control gestures;
• wherein directional movements in the one or more of the plurality of control gestures indicate a relative change in operational state of the at least one of the fan and the light source;
• and
• operating the range hood ventilation system in response to a determination that the movement is a particular one of the plurality of control gestures.

A control system for a range hood ventilation system, the control system comprising:

• a plurality of sensors;
• a memory;
• a processor;
• a plurality of operational states;
• a plurality of control gestures,
• wherein the plurality of sensors are configured to detect at least one of the plurality of control gestures in a gesture field, and the processor is configured to determine a control signal in response to data from the plurality of sensors when the at least one of the plurality of control gestures is detected,
• wherein the control signal controls an operational state of the range hood ventilation system;
• wherein the gesture field defines a plurality of zones and each of the plurality of zones is a different distance from the sensors and the processor is configured assigns different control signals to one or more of the plurality of control gestures depending on which of the plurality of zones in which the control gesture is detected.