Fuzzy Logic

A control technique.

The most common logic type is Binary i.e. a value is either 1 or 0. Or OFF and ON

But fuzzy logic allows values to be anywhere in-between as well. So a value may be 0.35 or .99 and so on. Fuzzy Logic works by applying a set of rules to the input to decide what to do next.

For example, an oven is being used to cook some food. It uses a temperature sensor to measure the heat but also an image sensor to detect how brown the cake is becoming (it is a very fancy oven!). The colour of the cake can be anywhere from pale (uncooked)to black (burnt). So fuzzy logic rules are applied such as IF Temperature is within cooking range AND cake colour is not brown enough, then keep cooking ELSE switch off oven.

2020-10