Developed an innovative delivery path navigation system using iOS IMU sensors and visual data from the Monocle AR HUD device. This solution tracks user paths in 3D, such as delivery routes within buildings, and provides guided directions to improve delivery efficiency. The 3D paths are visualized using Three.js. The system also integrates sensor calibration and noise reduction, utilizing a Kalman filter to smooth sensor data. Optimized for resource-constrained MCU devices like Monocle, this project aims to enhance logistics and delivery operations.