Inertia measurement unit based sensing module for CPT training kit

• Main Author: Lee, Gabriel Wei Jian
• Other Authors: Yeo Song Huat
• Format: Final Year Project
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering::Mechanical engineering
• Online Access: http://hdl.handle.net/10356/60278
• Institution: Nanyang Technological University

Cardiac arrest has always been one of the major causes of deaths. Ventricular Tachycardia is one of the many factors which may lead to the occurrence of Sudden Cardiac Death to a person. Without immediate treatment, the brain will cease to function within 4-5 minutes. Statistics in Singapore have found that there is an increase from 26 per 100,000 population in 1998 to 34 in 2007. This indicates the importance of bystander CPR which plays an important role in the chain of survival of the patient. Skill retention of CPR trainees is a problem. Studies have found out that CPR performance would decline rapidly to a certain level where it will remain constant. Many uncorrected mistake and wrong technique made by the trainee would remain together with their CPR skills. Additionally even professionals achieved only 70% average score in their basic life support skill examinations. To improve the chain of survival, several strategies are suggested to improve the quality of CPR in the community. One method of effective learning CPR is for the manikins to provide feedback to the user, however existing manikins with visual feedback are very expensive. The aim of this project is to build an affordable CPR training kit using IMU’s to collect vital information such as chest compression depth and rate and location of compression. The IMU and sensors used for data collection are integrated using an Arduino microprocessor. A GUI program is also created by using QTCreator and C++ to provide visual feedback to the user. Acceleration drifting problems encountered due to the double integration of the acceleration are adjusted by using the Kalman Filter to correct the drifting errors.