Probability model of rock climbing recognition based on information fusion sensor time series

EURASIP Journal on Advances in Signal Processing

Yuhui Jiang¹  Dawei Lan² 

[1] Guizhou Medical University, 550025, Guiyang, Guizhou, China;Guizhou University of Finance and Economics, 550025, Guiyang, Guizhou, China;

关键词: Multi-information fusion sensor;    Time series;    Rock climbing;    Motion recognition;   

DOI  :  10.1186/s13634-021-00816-5

来源: Springer

【 摘 要 】

Rock climbing is a sports activity that integrates competition, entertainment, and culture. With the development of the economy and the improvement in living standards, rock climbing has embarked on a path of self-development and has entered the lives of urban youth at an increasingly rapid rate. This paper studies the probabilistic model of rock climbing recognition based on time series of multi-information fusion sensors so that climbers can climb more standardized. Based on practice, this paper has conducted research and design on the hardware platform and actually applied it to the rock climbing environment. Through reasonable processing of rock climbing process data of rock climbers, a variety of rock climbing state characteristics are successfully extracted for fusion. Aiming at the quasi-periodical characteristics of acceleration changes at different points during human movement, a method for identifying human movement patterns based on gait event information is designed. This method intercepts the three-axis acceleration data collected by each accelerometer through key gait events. A data set used to identify human movement patterns is established. A corresponding LDA classifier is established for each data set to identify the current movement pattern, and finally the classification results of all the classifiers are voted on. The final experiment shows that the system can identify the climbing movement of the climber within 3 s. The method can achieve 95.84% of the comprehensive recognition accuracy of the four state modes of rock climbing.

【 授权许可】

CC BY