Fuzzy Logic-Based Temperature Controller for a PLA Storage Container

The polylactide (PLA) filament needs proper care and maintenance since it is a delicate material. Thermoplastic readily absorbs water, which can become brittle over time if stored in a humid environment. PLA filament storage must have the following conditions: store in a dry place, keep in hermetic containers, protect from direct sunlight, and store in a temperature range between 10 to 40 degrees Celsius. Since temperature plays an important role because, in the city of Poza Rica, Ver., temperatures above 40 degrees Celsius are reached in summer, this research paper presents a new methodology for a storage container for PLA material based on a low-cost embedded system and with a fuzzy control algorithm of 49 linguistic rules, for the regulation of the internal temperature of the container. The fuzzy logic controller presented a maximum error in temperature of less than 1% of error.