Noise Monitoring.pdf

The City of Calgary uses Semtech's LoRa devices for sound propagation acoustic sensing, enabling continuous and real-time monitoring of noise in urban environments. The LoRaWAN-based network provides unparalleled range and scale, allowing for machine learning to be implemented at the sensor level.

Key Features:

Cost-effective solutions for continuous noise monitoring
Development of acoustic sensors with embedded intelligence
Detection at multiple frequencies and characterization of sound
Ability to support city noise ordinance violations with accurate data

Business Value:

Proactively address noise complaints, saving time and money
Support city noise ordinance violations with accurate data
Plans for historic sound metric score map to be provided for home purchasing

Technical Details:

LoRa devices used for sound propagation acoustic sensing
City-owned LoRaWAN-based network achieves unrivaled range and scale
Ability for machine learning to be implemented at the sensor level
Battery-operated sensors for ease of deployment and low power consumption

Use Case:

The City of Calgary deployed LoRa-based sensors at the Circle Carnival event to test the technology
Sensors were programmed to compute average noise levels every three minutes and send warnings when noise levels exceeded 85dBC
Future plans include categorizing sounds and spatially correlating data to improve noise management and enforcement during public events.