Installation angle calibration method, vehicle-mounted device, and storage medium

A vehicle-mounted device comprising:

• at least one processor;
• and
• a storage device storing instructions, which when executed by the at least one processor, cause the at least one processor to:
• define a first coordinate system corresponding to an IMU of a vehicle according to first IMU data obtained from the IMU, and determine a rotation angle of a first coordinate system relative to a second coordinate system where the vehicle is located;
• update the first coordinate system based on the first rotation angle, and obtain a third coordinate system corresponding to the IMU;
• obtain the second IMU data of the vehicle, and extract target peak data from the second IMU data;
• determine a second rotation angle of the third coordinate system relative to the second coordinate system based on the target peak data;
• and
• determine the installation angle of the IMU relative to the vehicle based on the first rotation angle and the second rotation angle.

A non-transitory storage medium having stored thereon instructions that, when executed by a processor of an electronic device, causes the processor to perform an installation angle calibration method, the method comprising:

• defining a first coordinate system corresponding to an IMU of a vehicle according to first IMU data obtained from the IMU, and determining a rotation angle of a first coordinate system relative to a second coordinate system where the vehicle is located;
• updating the first coordinate system based on the first rotation angle, and obtaining a third coordinate system corresponding to the IMU;
• obtaining the second IMU data of the vehicle, and extracting target peak data from the second IMU data;
• determining a second rotation angle of the third coordinate system relative to the second coordinate system based on the target peak data;
• and
• determining the installation angle of the IMU relative to the vehicle based on the first rotation angle and the second rotation angle.