▎ 摘　　要

NOVELTY - The system has a touch unit for performing user touch operation. A graphene pulse sensor generates a wrist pulse signal. A storage module stores the wrist pulse signal. A pulse comparing module compares user pulse characteristic with the wrist pulse signal to obtain comparison result. The graphene pulse sensor and the storage module are connected with an unlocking module. The touch unit determines a contact locking state of a bracelet when similarity is greater than or equal to a threshold value. A feedback unit obtains feedback information. USE - Pulse sensing based hand ring unlocking system. ADVANTAGE - The system is convenient to operate, and has high safety performance. DETAILED DESCRIPTION - The touch unit is a pressure sensor or temperature sensor. The feedback unit is a vibrator or buzzer. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a pulse sensing based hand ring unlocking system. '(Drawing includes non-English language text)'