Individualized electric power management system using BLE tag at a shared house

In recent years, there has been a growing interest in home energy management systems (HEMSs), which monitor and control use of power at home. The Japanese government aims to have the system adopted by all households by 2030. The system is connected to home appliances via a network, monitors the state of power consumption, and controls power consumption remotely or automatically. However, it cannot manage how much power each user has consumed. This paper proposes a system that can manage power consumption of individual users at a shared house. Specifically, each resident carries a BLE (Bluetooth Low Energy) tag all the time. Using this tag, the system identifies the person who has used home appliances per outlet, and thereby manages the power consumed by each individual. To conduct experiments, we have created a personal outlet by associating a commercially available outlet with a smartphone. We have conducted experiments for a shared house with three residents, and evaluated the system's utility and level of accuracy in identifying individual users.