Another achievement of Su also caused quite a stir in the sensor industry. Su published a paper "Auxiliary Tools for Scientific Training: Application of Flexible Wearable Sensors in Motion Detection" in China Science: Information Science. The latest research progress of flexible electronics and photoelectric wearable sensors in recent years is summarized from the demand of collecting and analyzing various signs and signals in athletes' training.
With the continuous progress of flexible electronics, multi-functional instrument integration, artificial intelligence and other technologies, motion sensors are gradually developing towards intelligence, diversification, miniaturization and flexible wearable, which can collect signals generated during athletes' training in an all-round, multi-angle and multi-level way, monitor athletes' physiological indicators in real time, predict the risks existing in athletes' training and provide scientific training programs for athletes and coaches.
Muscle electrical signals can effectively analyze movements, detect the coordination and persistence of different muscles, and have been widely used in sports to guide sports rehabilitation and training diagnosis. With the rapid development of wearable devices, related functional devices are integrated into micro-devices and combined with flexible dry electrodes that can fit skin well, which provides a highly sensitive and portable solution for real-time monitoring of EMG signals.
Electrocardiogram (ECG) is an electrophysiological signal with regular changes in the heart. In the monitoring of exercise electrophysiological signals, ECG monitoring is relatively easy. With the continuous development of flexible electrodes. ECG-based monitoring has been applied to many sports scenes. In addition to monitoring sports events on land, there are also related studies on underwater events such as swimming, diving and diving.
EEG is an electrophysiological signal generated by the electrical activity of neurons in the brain, which is mainly collected by multiple electrodes on the scalp surface of the brain. In the field of sports, EEG is used to analyze feedback information, which can train athletes to improve their concentration ability during competition.
Oxygen saturation is the volume percentage of oxygenated hemoglobin in blood, which reflects the concentration of oxygen in blood. With the development of flexible electronics technology, sensors based on PGG principle can effectively monitor wearable oxygen saturation without blood sampling.
Scientific exercise training needs a complete exercise monitoring system and the integration of various wearable motion sensors. With the continuous development of wearable sensor integration technology, it will be possible to build a multifunctional motion monitoring platform. The development of scientific sports training monitoring system will become a new technology to break through competitive sports achievements, help athletes make new breakthroughs, provide more detailed and accurate reference and guidance for the training of young athletes and the selection of outstanding athletes, and promote the construction of China's "sports power".