A deep dive into how I built an IoT-based asset management system for healthcare facilities, combining Laravel with MQTT protocol for real-time equipment tracking.
The Problem
Hospitals frequently lose track of expensive medical equipment. Nurses spend valuable time searching for devices like infusion pumps, wheelchairs, and portable monitors. This directly impacts patient care quality.
The Solution Architecture
I designed a system with three layers:
- Sensor Layer - RFID tags on equipment, readers at zone entry/exit points
- Communication Layer - MQTT broker handling real-time messages from IoT devices
- Application Layer - Laravel web dashboard with real-time updates via WebSockets
MQTT Integration
MQTT (Message Queuing Telemetry Transport) is perfect for IoT because of its lightweight protocol and pub/sub pattern. Each zone reader publishes equipment detection events to topics like hospital/floor-2/zone-a/detected.
Real-Time Dashboard
The Laravel dashboard subscribes to MQTT topics and broadcasts events to connected browsers using Laravel Echo and WebSockets. Administrators can see equipment movements in real-time on an interactive floor map.
Results
The pilot deployment reduced equipment search time by 60% and improved asset utilization rates across the facility.