Abstract: An energy harvesting system and an indicator using same are disclosed. The disclosed indicator using an energy harvester comprises: an energy harvesting unit including at least one solar cell; a panel unit, which is arranged to face the energy harvesting unit, transmits sunlight and displays guide information; and a light-emitting unit for emitting light at the side surface of the panel unit.
Abstract: A smart cane may include: a main body configured to have an adjustable length; an inertia sensor unit configured to generate an angle value between a ground surface and the smart cane or detect an impact on the main body; and a controller configured to adjust the length of the main body according to at least one of the angle value and a number of impacts on the main body.
Type:
Grant
Filed:
April 22, 2021
Date of Patent:
July 23, 2024
Assignee:
HUJECT
Inventors:
Tae-Hyun Sung, Sang Bum Woo, Kyung Bum Kim, Quan Wang, Moses Sung