Monitoring and Feedback System in Smart Chair to Prevent Thoracic Kyphosis Disease

Improper sitting posture for a long time is lead to cause Thoracic Kyphosis disease that requires very long time medical aid, so this work is proposed to control the spinal cord bend which occurs to humans. The main aim is to design the sitting posture monitoring and feedback system in the smart chair. In this work, the smart cushion is a rectangular form cushion; the flex sensor is used to collect a sitting posture data. Experiments demonstrate that it can properly predict the seven different types of human sitting postures. If the pressure reaches the threshold value, the proposed system automatically alerts the user using a vibrating sensor and the bend values will be displayed in OLED. The exclusive PCB board is designed to replace the used microcontroller and Lilypad vibeboard. The proposed system is very low cost and effective to the users. The experiment results show that it can achieve high accuracy 98.47% with low power consumption.