In order to accurately measure the tilt attitude of tower

tower tilt measurement method based on micro inertial measurement unit（ MIMU） is proposed. MIMU measuring node is installed at different positions of the tower to collect the triaxial acceleration and angular velocity information of the tower movement. Unscented Kalman filtering is used to denoise the collected raw data. Quaternion attitude solution method is used to detect the tilt status of the tower. The experimental results show that the proposed method can reduce the noise interference to a large extent

and the quaternion attitude solution method can accurately detect the tilt degree of the tower.