2022.07.13
Overview
A wearable positioning device includes an inertial sensor, a storage device, and a processor electrically connected to the inertial sensor and the storage device. The inertial sensor senses an acceleration signal and an angular velocity signal, the storage device stores a previous positioning signal and a current coordinate, and the processor executes a wearable positioning method. The method includes: determining whether it is one of an underwater mode and a water mode according to a pressure sensing signal; calculating a current acceleration and a current direction according to the acceleration signal, the angular velocity signal and a stroke signal representing a swimming posture in the underwater mode; and calculating a current positioning signal according to the current acceleration, the current direction and the previous positioning signal, and using the current positioning signal to update the current coordinate. In this way, it can be applied to trajectory tracking, water surface positioning and rescue of water activities.Category
發明
Patented
2022205223
2022205223
Filing Date
2022.07.13Expired Date
2042.07.12Notification
2024.04.25