Smart Oqal: Posture Analysis and Correction Using an Inertia Measurement Unit

Abstract

AbstractThis project aims to design a head wearable device that measures head movement to track user posture using wireless channel to transmit data and display it through a PC/mobile applica-tion.Safwan H. Ibrahim, Mohanad Ahmed, Ali H. Muqaibel and Tareq Y. Al-NaffouriSmart Oqal: Posture Analysis and Correction Using an Inertia Measurement UnitMotivation2 Hours Spent in PC daily2-4 Hours spent using mobile phones80% of Adults suffer from back pains atsome point of their lives.2nd Leading cause of early retirement inGermanyHardware ImplementationDesign OverviewData CollectionAdvantage over other solutionsConclusionPrototype SpecificationsComponents SelectionIMUuCBluetoothCharging ModuleBatteryFigure below shows the discrete hardware implementation and printed circuit beard (PCB) design of the posture correction device that measures head orientation. The PCB is designed to reduce the device size.SpecificationsPrototypeCommunication technologyBluetooth 4.0 (2.402 – 2.48GHz)BatteryLi-ion, 3.7V, 500mAhCharging portType-cMax current drawn per day460 mA (with vibrator and Bluetooth ON)Avg. current drawn per day300 mAPCB dimensions34.3 × 24.6 × 5mmMobile platformAndroidPC platformWindowsComparison between data of normal daily behavior and data of using the mobile phone (measuring the front view of the head)Number of occurrenceNumber of occurrenceAngle of headAngle of headThere are several products in the market for posture correction:However, our product has two advantages:1– Part of the national headwear of Saudis and GCC citizens (Oqal)2– It directly measures the movement of the head, which has a strong indication of posture problems (As oppose to other product that put their devices on the back)Part of National Headwear (On/In Oqal)Very light & Low power consumptionAssociated with Mobile/PC application (Via Bluetooth)The App intern to alerts the user to incorrect & prolonged posture and form a healthy habit.The device collects data that physicians and physiotherapists can use to diagnose posture problems.