當心臟疾病突發時，心肺復甦術(CPR)是急救病患中重要的一環。CPR胸外按壓得在相關的規範內，若壓太輕效果不大，若太大力則可能造成病患傷害。現今人們隨身攜帶著手機與手錶，在面對突發狀況時若能即時運用此兩裝置，更能增加急救的效果與效率。因此本論文欲開發出一套結合使用穿戴式裝置與智慧型裝置的CPR輔助系統。本論文使用自製的穿戴式裝置進行按壓感測，透過加速度計的量測，可以運算按壓的次數與頻率，甚至將加速度積分為位移，算出按壓深度與回彈距離。透過安妮外部的光學動作捕捉系統進行驗證，按壓深度與回彈距離誤差分別為2.37±3.03mm與2.19±2.86mm；使用安妮內部的線性電阻進行驗證，按壓深度與回彈距離誤差為2.2±2.84mm與2.09±2.69mm，而按壓次數誤差為±1下。最後進行使用本裝置前後比較，使用本系統能提昇84.7%的按壓頻率準確度與64.5%的按壓深度準確度，問卷調查結果反映使用本系統更能提昇使用者的按壓信心與能力。未來欲增設陀螺儀以增加不同角度下的深度準確度，以及偵測手臂彎曲狀況。

Cardiopulmonary resuscitation (CPR) is an important way for first aid when cardiac arrest suddenly occurs. The depth of chest compression must meet the standard, if the compression is too shallow will cause the ineffectiveness, else will lead to patient's injury. People nowadays bring smartphones or wear smartwatches. In order to increase the effectiveness and efficiency of emergency treatments, the applications based on the smartphones or smartwatches should be considered. Therefore, a CPR assistive system that combines wearable and smart devices is developed in this study. We use the designed wearable device to monitor the quality of chest compression. Using the accelerometer measurements to execute the number and frequency of compression, then integrates the acceleration to calculate the displacement, the compression depth and recoil distance. Based on the overall results of compression depth and recoil distance verification, we found an accuracy of 2.37±3.03mm and 2.19±2.86mm as compared to the optical motion capture system (Qualisys) (outside manikin), an accuracy of 2.2±2.84mm and 2.09±2.69mm as compared to the linear variable differential transformer (LVDT) (inside manikin), and an error of the number of compression of ±1 times. The result of survey questionnaire presents that with the use of our proposed system can improve the self-confidence and the ability of the users. Furthermore, a gyroscope will be added to increase the depth accuracy of different angles and to detect the bending of arms in the future.

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