//NAKULAN R.
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PROJECT 01IOTIoT · Backend · Real-time Systems

SMARTTRACK

IoT Railway Crack Detection & Monitoring System

Detecting railway track abnormalities through connected sensing, real-time data flow, backend processing and map-based monitoring.

01 / THE PROBLEM

Manual railway track inspections are slow, labor-intensive, and prone to oversight, risking catastrophic derailments.

02 / THE CORE CONCEPT

An IoT-based continuous sensing system that streams vibration and alignment telemetry to a central monitoring pipeline.

03 / TECHNICAL APPROACH

Deployed edge sensor nodes along tracks to collect continuous vibration and alignment telemetry, streamed over lightweight MQTT to a central ingestion backend.

04 / SYSTEM ARCHITECTURE DIAGRAM

DATA FLOW & COMPONENT TOPOLOGYVERIFIED MAP
Edge Sensor Nodes (ESP32)
MQTT Broker
Express/Node.js Pipeline
Geo-spatial Store (MongoDB)
Leaflet Command Center

IMPLEMENTATION DETAILS

Built edge firmware telemetry handlers, MQTT subscriber microservice, REST API endpoints for telemetry querying, and interactive Leaflet map interface.

MY VERIFIED CONTRIBUTION

Designed the end-to-end hardware-to-cloud data ingestion pipeline and real-time alert dispatching service.

ENGINEERING CHALLENGES OVERCOME

Ensuring reliable low-latency MQTT data ingestion during high-frequency sensor telemetry bursts.

FACTUAL OUTCOME & VERIFICATION

Functional hardware prototype demonstrating real-time crack anomaly detection with geographic mapping, selected under Sustainable Cities category at Hackathon 2025.

TECHNOLOGY STACK

ESP32MQTTNode.jsMongoDBReactTailwind CSSLeaflet
PROJECT ID:smarttrack
DOMAIN:IOT
FLAGSHIP STATUS:FLAGSHIP