The Design and Realization of the Taekwondo Real-Time Hit Effect and Feedback System

Taekwondo e-body protector as judge rule of score presented new challenges of the technical and tactical training to the athletes. This article aims to research and development of Taekwondo striking effect measurement and feedback system based on wireless communication technology. In this paper, force sensors, accelerometers and angular rate sensor and wireless communication were used to realize real-time kinematics and dynamics signal acquisition during the hitting, in the case does not affect the normal training of athletes. By the test this system achieved the design function, and preferably completed the acquisition of the striking force, foot acceleration and angular velocity information. Further more, it can detect the reaction time and the striking speed of the athletes. In the Competition the striking effect is evaluated by the impulse of the strike, so the string force is eventually transformed into impulse by integration. And the impulse is calibrated by the impact force of a 5Kg rubber ball. And the reliability and stability of the wireless module was also verified by the information collection. The system will help the coach find the shortage in these basic capabilities.