| dc.description.abstract | In recent years, our national defense policy has gradually strengthened the recruitment of military personnel, aiming to ensure that military training is supported by adequate protective auxiliary systems. This paper develops a wearable sensor device, which can take the form of clothing, chest straps, necklaces, etc. The sensors are worn on the body to collect vibration data before, during, and after exercise. The data is first analyzed and calculated based on the vibration data, then subjected to Fourier transformation to obtain information in the frequency domain. The resulting graphs are analyzed to observe the differences in body vibrations before and after exercise for each individual. Additionally, by comparing the transformed vibration frequency data of different individuals, we can determine if there are regular patterns and whether the data can be used to assess the physical condition of the subjects. If any abnormal physiological phenomena that require emergency intervention are detected, an alert can be issued to notify doctors, family members, and emergency teams directly.
The vibrations detected by the sensor worn on the chest mainly come from breathing and heartbeat vibrations. According to the respiratory assessment report of the subacute respiratory care ward of Kaohsiung Medical University Chung-Ho Memorial Hospital, the ratio of breathing to heartbeat is approximately 1:4. | en_US |