The invention discloses a fatigue index screening
system and an integration method thereof in a LoRa monitoring terminal. According to the method, comprehensive and accurate evaluation of the fatigue state of the operator is realized by constructing a multi-dimensional
index system and a scientific
screening method. The
system integrates multi-dimensional indexes such as electrocardio,
heart rate,
respiratory rate,
skin temperature, three-axis posture,
exercise intensity score and physical state six-minute
walking test, can be used for real-time monitoring, high-altitude noninvasive, individual difference correction,
synchronism verification, scene adaptive adjustment and Spearman
correlation analysis by combining a five-step deletion
screening method, eliminates indexes with strong interference or
lag, and can be used for real-time monitoring, high-altitude noninvasive, individual difference correction,
synchronism verification, scene adaptive adjustment and Spearman
correlation analysis. Core indexes highly related to the fatigue development trend are reserved, it is ensured that all-dimensional characteristics covering
physiological reaction, psychological
perception and behavioral performance of operators are evaluated, the accuracy of fatigue state judgment is remarkably improved, stable operation can still be achieved in a strong
electromagnetic field environment based on the LoRa technology and anti-interference design, and the reliability of
data transmission is effectively guaranteed.