Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
Vol 10 No 5 (2026): Volume 10, Issue 5, May 2026 | Pages: 160-169
International Research Journal of Innovations in Engineering and Technology
OPEN ACCESS | Research Article | Published Date: 09-05-2026
The unprecedented proliferation of Internet of Things (IoT) deployments — from industrial control systems and smart grids to healthcare wearables and autonomous vehicle networks — has generated an insatiable demand for real-time anomaly detection at the network edge. Transmitting raw sensor telemetry to centralised cloud servers for inference introduces unacceptable latency (120-850 ms round-trip over LTE), creates single points of failure, and violates increasingly stringent data-sovereignty regulations including India's Digital Personal Data Protection Act 2023 and the EU General Data Protection Regulation. FederaFederated Learning (FL) offers a compelling alternative: models are trained locally on edge devices and only gradient updates — never raw data — are shared with an aggregation server. However, existing FL frameworks (Flower, PySyft, TensorFlow Federated) are engineered for data-centre-class hardware and impose memory footprints (512 MB+) and communication overheads incompatible with the constrained microcontrollers (256 KB-2 MB RAM) that constitute the majority of deployed IoT edge nodes. This paper presents EdgeMind, a novel lightweight federated learning framework purpose-built for resource-constrained IoT edge devices. EdgeMind introduces three key contributions: (1) a gradient compression scheme — Sparse Top-k Gradient Pruning with Adaptive Threshold (STGPAT) — that reduces per-round communication volume by 94.3% while retaining 97.1% of convergence accuracy; (2) a heterogeneity-aware asynchronous aggregation protocol (HAAP) that tolerates device dropout rates up to 40% without accuracy degradation; and (3) an on-device anomaly detection model (EdgeMind-Net) — a quantised MobileNetV3-inspired 1D-CNN architecture occupying 187 KB RAM — deployable on Raspberry Pi Zero 2W, ESP32-S3, and Arduino Nano 33 BLE Sense. Evaluation on three benchmark datasets (UNSW-NB15, KDD Cup 99, and WADI) demonstrates F1-scores of 0.943, 0.961, and 0.927 respectively, with end-to-end inference latency of 4.2 ms on Raspberry Pi Zero 2W — a 28x improvement over the nearest FL baseline framework. EdgeMind is open-source and available at github.com/edgemind/edgemind-framework.
Federated Learning, IoT Anomaly Detection, Edge Computing, Gradient Compression, Resource-Constrained Devices, Privacy-Preserving Machine Learning, Quantised Neural Networks, 1D-CNN, Heterogeneous Federated Learning, Smart Grid Security, DPDP Act 2023.
Swayamdip Devendra Chaurpagar, Yash Purushottam Bokde, Somnath Anna Kadam, Harsh Vinod Kolarkar, & Suraj S. Bankar. (2026). EdgeMind: A Lightweight Federated Learning Framework for Real-Time IoT Anomaly Detection on Resource-Constrained Edge Devices. International Research Journal of Innovations in Engineering and Technology - IRJIET, 10(5), 160-169. Article DOI https://doi.org/10.47001/IRJIET/2026.105021
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