Industrial IoT Solution for Smart Manufacturing
A multi-line manufacturing facility sought to digitize its operations by capturing real-time data from machines, electrical panels, and the shop-floor
Read more →A multi-level energy meter dashboard using Raspberry Pi, RS-485, and real-time data analytics.
Case study ·

Project overview
A multi-unit industrial complex needed a centralized energy monitoring solution to track real-time power usage across its electrical distribution hierarchy—from state supply meters down to slave panel meters. Kelectron Technologies designed a modular, scalable solution to digitize and visualize this entire energy consumption chain.
Problem statement
Our solution
Kelectron deployed a Raspberry Pi-based IoT system with a structured data acquisition pipeline to monitor and display real-time and historical usage data across: State Board → Main Meters → Master Panels → Main Panels → Slave Meters
| Layer | Technology |
| Hardware Interface | RS-485 communication with EM6400 & EM6436H meters |
| Edge Devices | Raspberry Pi 4 with isolated RS485 converters and shielded cables |
| Data Storage | Local MongoDB on RPi; historical data partitioned per meter |
| Backend | FastAPI-based data pipeline to serve structured data |
| Frontend | Responsive web dashboard (HTML, JS) with meter hierarchy navigation and charting |
Deployed 8 Raspberry Pi units across multiple panels with class-10 SD cards
Used shielded RS-485 cabling to ensure stable Modbus communication in noisy environments
Designed a multi-level UI allowing click-through from main meter to nested slave meters
Provided download options for Excel and CSV for all historical data views
Integrated dynamic charting for real-time and historical comparison
Built-in auto-retry and error-handling logic to handle power failures or communication drops
Results & Benefits
Results as reported on this client project. Outcomes vary with each plant, process and data set.
Technologies used
A multi-unit industrial complex needed a centralized energy monitoring solution to track real-time power usage across its electrical distribution hierarchy—from state supply meters down to slave panel meters. Kelectron Technologies designed a modular, scalable solution to digitize and visualize this entire energy consumption chain. No centralized view of power consumption at different panel levels. Manual logging of meter readings led to errors and inconsistent tracking.
Kelectron deployed a Raspberry Pi-based IoT system with a structured data acquisition pipeline to monitor and display real-time and historical usage data across: State Board → Main Meters → Master Panels → Main Panels → Slave Meters Hardware Interface: RS-485 communication with EM6400 & EM6436H meters; Edge Devices: Raspberry Pi 4 with isolated RS485 converters and shielded cables; Data Storage: Local MongoDB on RPi; historical data partitioned per meter; Backend: FastAPI-based data pipeline to serve structured data; Frontend: Responsive web dashboard (HTML, JS) with meter hierarchy navigation and charting.
Full visibility across 20+ energy meters in real-time Enabled load profiling and energy audits with just a few clicks Client identified energy spikes and optimized load balancing, reducing peak load by 18% Improved electrical safety and planning by detecting overdraws early Foundation laid for future automation (auto alerts, integration with billing systems)
Hardware: Raspberry Pi 4, RS-485 isolated modules. Energy Meters: Schneider EM6400 / EM6436H. Protocols: Modbus RTU, HTTP. Software Stack: Python, FastAPI, MongoDB, JavaScript. Data Features: Real-time polling, historical export, multi-level meter navigation.
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