Dhwanix – Noise Pollution Monitor
IoT-based real-time noise pollution monitoring system for hospitals and schools — measuring decibel levels with threshold alerts to protect quiet-zone environments.
Project Overview
Dhwanix is an IoT-based noise pollution monitoring system designed for sound-sensitive environments like hospitals and schools. It measures ambient decibel levels in real-time using a calibrated sound sensor connected to an ESP32, triggers alerts when levels exceed defined thresholds, and logs data for historical noise trend analysis.
Development Process
Challenges
Accurately distinguishing transient noise spikes from sustained noise violations, and calibrating the sensor for different environmental acoustic profiles.
Solutions
Implemented a moving-average algorithm on the ESP32 firmware to filter transient spikes, with configurable threshold levels and an MQTT pipeline for remote monitoring.
Results & Impact
Deployed as a working prototype demonstrating real-time noise monitoring with alert capabilities for quiet-zone enforcement in educational and medical environments.