All-in-one three-phase smart meter and power quality analyzer
Three-phase openZmeter (3Ph-oZm) hardware block diagram: (1) the signal conditioning and acquisition (green); (2) the power supply and battery management elements (gray); (3) the STM32 microcontroller (blue), which controls the overall operation, performs data digitization and communication with the RT Linux kernel; (4) the Advanced RISC Machine