How do smart plugs handle energy monitoring and scheduling across different home devices?

25 Eki 17:00

Smart plugs are often marketed as simple on/off switches, but many offer built-in energy metering and programmable schedules. I'm curious about the underlying mechanisms: how does a plug measure real‑time power consumption without interfering with the load, and what protocols are typically used to sync schedules across multiple devices in a household? Also, how reliable is the data when the plug is chained or placed behind a surge protector? Would love to hear experiences and technical insights.