Sensor Positioning Effectiveness Analysis of Smart Pirates on Pencak Silat Sport

Pencak silat is an original sport from the legacy of Indonesian ancestors. This sport needs to be preserved to avoid extinction. The use of technology in this sport is still very limited. This technology is needed especially in the development of match pirates for athletes. The existing pirates still function as body protectors, even though the pirates function can be developed for several purposes that are used in matches. One of them is as a decision support system in determining match scores. This study aims to analyze the sensor placement on pirates so that the best accuracy is obtained in assisting referees in determining the score of a pencak silat match. This research is still limited to positioning sensors. If the sensor placement is not right, it will have an impact on the score in the match. This study proposes 5 pirates which use 10 sensors, 15 sensors, 20 sensors, 25 sensors, and 30 sensors. The testing process is done by doing 20 punch on each pirate. The tests carried out are the analysis of the accuracy of the punch area and the power of the blow. The results show that the best result is the 5th pirates. This is because it has been able to accommodate the hit area as much as 100%, while the sensor’s reach to hit is 50.4%.