SEMeter: Metrology & NILM Engine

Production-grade RTOS-based firmware for three-phase energy meters, equipped with advanced signal processing and Non-Intrusive Load Monitoring (NILM).

Tech Stack:

C, RTOS, MSP430, Metrology, NILM, SPI, UART, Energy Analytics

Standard meters only tell you how much energy is spent, but not on what. To reduce industrial costs, companies need to know exactly where the money is going. The goal was to create a brain capable of algorithmically distinguishing between the consumption of a heavy motor, a heater, or an air conditioning unit — all from a single measurement point.

Developed for the Texas Instruments MSP430 architecture, the firmware manages high-speed sampling of voltage and current phases. It uses a Real-Time Operating System (RTOS) to simultaneously orchestrate: high-precision metrological calculations, the display's visual interface, and RF/Ethernet communications. Its greatest innovation is the implementation of disaggregation logic (NILM) to identify the "energy signatures" of specific machines within the three-phase signal.

The ROI:

Surgical Energy Intelligence:

Instead of "turning off lights" to save, factories can optimize or replace exactly the motors that are over-consuming.

Direct Capital Savings:

Enables implementing strategies that reduce industrial utility costs by up to 15% through identifying hidden inefficiencies.

The electricity bill doesn't tell you where you're losing money. Transform your electrical infrastructure with smart meters that autonomously audit your consumption machine by machine, revealing inefficiencies and generating immediate savings.