Research Article

An Open and Modular Hardware Node for Wireless Sensor and Body Area Networks

Table 2

Fuzzy sets of the input and output variables: linguistic terms and their corresponding trapezoidal fuzzy sets parameters.

Input variablesLinguistic termsFuzzy sets (, , , )

Small0, 0, 0.3, 0.7
Big0.3, 0.7, +∞, +∞

MAMSmall0, 0, 0.25, 0.45
Medium0.25, 0.45, 0.7, 0.9
Big0.7, 0.9, +∞, +∞

RVSmall0, 0, 0.3, 0.7
Big0.3, 0.7, +∞, +∞

Small0, 0, 0.25, 0.45
Medium0.25, 0.45, 0.7, 0.9
Big0.7, 0.9, +∞, +∞

Output variableLinguistic termsFuzzy sets (, , , )

Warning levelZero0, 0, 0.1, 0.2
Low0.1, 0.2, 0.3, 0.4
Medium0.3, 0.4, 0.6, 0.7
High0.6, 0.7, 0.8, 0.9
Very high0.8, 0.9, 1, 1