Abstract
In this research, Posture Guard, an IoT-based assistive device to monitor the posture and detect prolonged immobility in elderly and differently-abled individuals, has been proposed. An MPU6050 IMU is used to measure the motion and orientation of the user. The ESP8266 is utilized as the controller for this purpose. The algorithm used in this system is CPE (Continuous Posture Evaluation) algorithm. This algorithm uses posture angles measured using the IMU to determine any deviation in posture with respect to pre-defined values. Further, it can detect the time duration during which there are no changes in the orientation or posture. In case there is an improper posture or high-risk scenario detected, the system sends out an alert to the user via voice and vibration feedbacks. However, in cases requiring urgent attention, GSM notification service is used to notify the caregiver regarding the situation. Besides, posture information is sent to the cloud server for real-time tracking of posture. As demonstrated in experimental results, the proposed system shows posture detection accuracy around 90%.
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