A raspberry pi enabled smart system for monitoring excessive sound levels in decibels

Abstract

The present invention is related to a Raspberry Pi enabled smart system for monitoring excessive sound levels in decibels, provides an intelligent, real-time solution for monitoring, analyzing, and controlling noise in various environments. The system integrates a Raspberry Pi microcontroller with both analog and digital microphones to accurately measure sound intensity, while a relay module enables automatic control of sound sources when predefined thresholds are exceeded. Immediate local alerts are provided through buzzers, LEDs, and an OLED display, while real-time data is transmitted to cloud-based IoT platforms for remote monitoring, visualization, and historical analysis. A dual-microphone setup allows automatic calibration to improve measurement accuracy, and the system computes cumulative sound exposure for compliance tracking. Scalable deployment enables multiple units to form a distributed wireless sensor network for large-area noise mapping with potential GPS-based localization. This integrated approach combines real-time sensing, automated control, cloud monitoring, and data analytics, offering a comprehensive solution for industrial, educational, and public safety applications.