Software execution freeze-safe microcontroller using power profile tracking for IoT-driven connected services

摘要

When we consider the safety of Internet of Things (IoT), it is quite important that a fault on a single IoT device affects the whole IoT system. If this fault causes isolation at a certain point, the system will freeze. To prevent this, we attempt dynamic monitoring using data samples made from power profile tracking. This paper proposes MCU with low-power monitoring hardware and software using power profile tracking. IoT devices connected with Bluetooth are used to make up a state power map. Then, it is transmitted via Wi-Fi and becomes a system power map, which is stored in LUT, and the monitoring unit watches for whether a fault occurs or not. By the proposed method, we enable low-power, freeze-safe IoT development.