Low Power Data Acquisition System for Noise Pollution Monitoring

Abstract

Low-power data-acquisition systems are instrumental in meeting the growing demand for Internet-of-things applications. Activity-aware wake-up circuits reduce power consumption by detecting activity in the analog domain and intelligently feeding that information to digital control systems. This paper investigates implementations of low-power audio systems with activity-aware wake-up and discrete components. Experiments are run to demonstrate the functionality of the wake-up function and estimate the power savings.