Light sensor selection of Wi-MoLS (wireless modern light sensor) based on analytic hierarchy process (AHP)

摘要

This paper presents a technique for selecting the light sensor candidates according to its effectivity and sensitivity criteria. The light sensor candidates, such as light dependent resistor, photodiode, and phototransistor, is taken due to its good performance in daylight sensing. Analytic Hierarchy Process (AHP) which provides a structured technique for organizing and analyzing complex decisions based on mathematics was chosen. It offers simple ways in matrix based-operations to rank the best light sensor candidates over those criteria. The results show that light dependent resistor is the most effective and sensitive light sensor by 62.16 % in score instead of phototransistor (19.72%) and photodiode (18.12%).