LPWAN-Based Smart Dispenser Monitoring System

Overview

Monitoring consumable levels and device health across large numbers of distributed dispensers requires a communication and management platform that minimizes maintenance effort while remaining highly energy efficient. This project focused on the development of a connected disinfection dispenser system that enables remote monitoring of fill levels, battery status, and operational metrics through a low-power LPWAN infrastructure.

The solution combined custom embedded hardware, ultra-low-power firmware, and a scalable backend architecture to support fleet-wide monitoring and management. Particular attention was given to low energy consumption, streamlined device provisioning, and long-term scalability. While the system architecture was designed to support deployments of more than 70 active devices, a pilot rollout of 10 units was conducted to validate the technology, operational workflows, and end-to-end system integration under real-world conditions.

Key Contributions:

• Development of a complete IoT monitoring solution for smart disinfection dispensers
• Custom embedded hardware with fluid level sensing and battery monitoring
• Ultra-low-power system architecture with approximately 290 µW power consumption in sleep mode
• LoRaWAN-based communication using The Things Network (TTNv3), with extensibility to other LPWAN technologies
• Design of a scalable provisioning and deployment workflow for installations with 100+ devices
• Development of a backend platform for data ingestion, processing, monitoring, and system integration
• Device provisioning, monitoring, and lifecycle management tooling
• Pilot deployment and field validation with 10 operational units