AHRS-BOAT Electronic Compass

The GM301-AHRS-BOAT is a 9-axis electronic compass independently developed by Beijing Xinpuni Technology Co., Ltd. The GM301-AHRS-BOAT integrates a 3D inertial sensor assembly comprising a gyroscope and accelerometer together with a triaxial magnetometer. It incorporates a fully proprietary attitude and heading reference algorithm along with a dedicated vessel-borne calibration algorithm, enabling continuous, high-accuracy attitude and heading output for a wide range of marine vessel types.
The device features a built-in dedicated ARM processing board that provides the necessary computational capacity. Leveraging a deep learning algorithm, the system constructs a learning network that acquires BeiDou heading data as labeled reference input and collects operational motion data across all working states as calibration training data. The network is trained to derive optimal model parameters, achieving best-in-class magnetic heading accuracy across all operational conditions.