The core inertial navigation of the LIMU-15 laser Type inertial navigation system consists of a three-axis type 30 laser gyroscope combined with a three-axis quartz flexible accelerometer. It primarily includes: secondary power supply, navigational computer, current frequency conversion circuit, gyro control board, gyroscope, accelerometer, and mechanical structure. Key functions. can provide real-time information on location, heading, horizontal attitude, velocity, and angular velocity Under the condition that the guidance information is valid, initial alignment can be completed while in motion. Be of self-correction and data storage Coordinate systems can be aligned with other devices through parameter settings.