Design of an electronic breastplate for automatic detection of 4 types of techniques of TaeKwonDo

This paper presents the design of an electronic breastplate for automatic detection of 4 types of techniques taekwondo in the thoracic section of the body (Bandal Chagui, Yop Chagui, Tuit Chagui y MontongChirugui); in order to discriminate if an impact should be considered as valid and transmit it wirelessly to a computer with a program to display the marker For the development of this work biomechanical analysis of the 4 different techniques in 10 different athletes were performed with 5 XSENS inertial sensors IMU of 9 degrees of freedom by using only the 3 axes acceleration data and finding the Pearson correlation index for each; subsequently the detection algorithm was implemented in an embedded system whit an ATM328 microcontroller in an Arduino UNO tarjet, ADXL345 accelerometer, XB24AWIT Zigbee radio and a computer program in Visual C# for counting points. The device has 3.53 x 8.53 x 7.76 cm in dimensions and weighs 180 grams. Operates on a 9 volt battery that lasts 50 minutes in active mode. The communication range is up to 50m and has a maximum time following the impact response of 250 ms.